JPH0711557Y2 - Scraping device for straw bundling machine - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a device for smoothly feeding a threshed grain culm to a binding machine from a threshing device such as a combine to a binding machine.

(B) Conventional Technology In order to smoothly guide the grain culms after threshing to the bundling machine, it has been publicly known that a transport device is provided between the threshing machine and the bundling device.

For example, it is like the technique described in Japanese Utility Model Publication No. 57-173537 and Japanese Utility Model Publication No. 61-154742.

(C) Problems to be solved by the invention These scraping devices have a structure in which the star wheel is projected toward the thresher side from the knotting frame and the scraping is performed at the binding device inlet. However, when the grain culm after threshing was disturbed and conveyed to the binding device, it was wound around the star wheel or further distorted or lifted from the deck due to the pushing action of the packer. .

(D) Means for Solving the Problem The present invention has the following configuration in view of such a point.

Chain case 12 from the knot frame 13 toward the threshing device
And a take-in rocking link 20 that draws a rocking locus B of an ellipse at the tip of the chain case 12 and scrapes straw.
A stock holding spring 32 arranged along the trajectory of the take-up rocking link 20 is provided.
The upper part of the swing locus B of 0 is arranged so as to overlap with the locus drawn by the return side of the take-in swing link 20, and the stock foot pressing spring 32 further swings the packer 3 whose end overlaps with the swing locus B. Motion trajectory A
, Which was extended to cross the intermediate position.

(E) Embodiment The purpose of the present invention is as described above, and the structure of the present invention will be described based on the structure of the embodiment shown in the accompanying drawings.

FIG. 1 is a side view of the binding machine, FIG. 2 is a partial cross-sectional view of the same, FIG. 3 is a front view of the scraping device, and FIG. 4 is a plan view showing the positional relationship between the scraping link and the packer.

The main packer 3a, the subpackers 3b and 3c, the needle 6, and the door 7 are projected above the front surface of the binding mission case 2, and the deck 1, the door 7, the knot frame 13, and the discharging arm are provided.
A binding space D is formed by 17, and the tip of the arm 9 projecting from the binding mission case 2 is pivotally supported in the middle of the packer 3, and the rotation of the arm 9 causes the main packer 3a,
The subpackers 3b and 3c rotate and draw a swing locus A and are rotated.

Further, the transmission case 10, the drive chain case 52, and the transmission case 11 are U-shaped when viewed from the rear, and the side ends of the transmission case 10 are fixed to the side surface of the binding mission case 2.
A knot frame 13 and a chain case 12 are fixed to the front end of a transmission case 11 above which power is transmitted via a drive chain case 52.

A knot shaft 14 is projected from the transmission case 11 into the knot frame 13, and a bevel gear 15 and a rotating arm 16 are provided at the tip of the knot shaft 14.
When the clutch is engaged by the rotation of the door 7, the knot shaft 14 is rotated in synchronization with the rotation of the needle 6, and the bevel gear 15 fixed to the knot shaft 14 is rotated so that the knot building is formed. It works and the knot is made. Further, by the rotation of the rotating arm 16, the discharge arms 17, 17 connected to the tip of the rotating arm 16 are swung, and the grain stems are discharged.

The chain case 12 is provided so as to project obliquely upward toward the threshing device side, and the scraping swing link 20 and the stock holding springs 32, 33 of the present invention are provided at the tip of the chain case 12. .

That is, the drive shaft 21 that is rotated in synchronization with the rotation of the packer 3 via the transmission case 10, the drive chain case 52, and the transmission case 11 is projected into the chain case 12, and the drive shaft 21
Drive sprocket 22 is fixed to the end, and chain case 12
Since the sprocket 24 is fixedly mounted on the take-in drive shaft 23 which is laterally mounted on the tip end of the drive shaft, and the chain 25 is interposed between the drive sprocket 22 and the sprocket 4, power is transmitted to the take-in drive shaft 23. is there.

Arms 26, 26 are fixedly provided outside the chain case 12 at both ends of the take-in drive shaft 23, and the middle portions of the take-up rocking links 20, 20 are pivotally supported by pins 27, 27 at the tips of the arms 26, 26. Has been done. 19
Is an auxiliary rod.

Further, support stays 29, 29 are provided at the upper end of the chain case 12 in a protruding manner, and a pivot shaft 30 is laterally mounted on the support stays 29, 29.
0 Connection arms 31, 31 are pivotally supported at both ends. The other ends of the connecting arms 31, 31 are pivotally supported by the upper ends of the swinging swing links 20, 20, and by rotating the arms 26, 26 in the direction of arrow C, which is the opposite direction to the direction in which the packer 3 rotates. Tucking swing link 20,20
The tip rotates along the trajectory B. The end of the swing locus B on the side of the binding machine faces the end of the packer 3 on the swing locus A on the side of the threshing device so that the scraping is not interrupted.

Then, one end of the stock-source pressing springs 32, 33 of the present invention protrudes from the tip of the chain case 12 on the side of the threshing device.
Fixed to the threshing device side so as to project toward the threshing device side, that is, above the threshing device side end of the swing locus B, that is, the non-actuating side end of the scraping swing link 20,20. It is bent in a U-shape and arranged so as to cover the return side (non-operating side) of the swing locus B, and the other end of the swing locus A of the packer 3 on the deck 1 on the binding machine side. Has been extended to the middle part of.
34 is an intake guide.

(F) Action of the device With such a structure, the threshing device sends the threshing after threshing to the deck 1 and is pushed toward the binding machine side by the swinging of the swing swing links 20, 20. Straws are spring stock foot presses 32,3
At 3, the conveyance posture is prevented from being disturbed by being biased to the deck 1 side, and the straw is prevented from being caught in the opposite direction when the scraping swing links 20, 20 return and rotate. Then, the straw is further pushed into the binding space D side by the swinging of the packers 3a, 3b, 3c, and when a certain amount of straw bundles are accumulated in the binding space D, the door 7 is rotated to engage the binding clutch and the needle 6
Is rotated and knotted in the knot frame 13, and then discharged by the discharge arm 17 to the outside of the machine.

(G) Effect of the Invention With the above-mentioned configuration, the present invention has the following effects.

First, the stock foot presser spring 32 doubles as an intake guide,
Since the tip of the scraping rocking link 20 on the return side of the rocking trajectory B is extended to a position that traverses the rocker's rocking trajectory A, the trailing end of the threshing device is surely inherited to the scraping rocking link and the packer. This enabled the straw to be smoothly guided to the binding space.

Secondly, since the stock holding spring is arranged so as to overlap the swing locus B on the return side of the take-in swing link,
20 is prevented from being conveyed in the reverse direction by the stock holding spring 32,
It is now possible to prevent wrapping.

Thirdly, since the straw is held by the stock base pressing spring 32 so as to be pressed toward the deck, the carrying posture is not disturbed, and the straw can be reliably carried to the binding space.

[Brief description of drawings]

FIG. 1 is a side view of the binding machine, FIG. 2 is a partial cross-sectional view of the same, FIG. 3 is a front view of the scraping device, and FIG. 4 is a plan view showing the positional relationship between the scraping link and the packer. A: Pucker rocking trajectory, B: Sweeping rocking link rocking trajectory 3 ... Packer, 12 ... Chain case 13 ... Knot frame, 20 ... Sweeping rocking link 32, 33 ... Stock source presser spring

Claims (1)

[Scope of utility model registration request] 1. A scraping swing link 20 for projecting a chain case 12 from a knotting frame 13 in the direction of a threshing device, and drawing an elliptical swing locus B at the tip of the chain case 12 to scrape straw. And a stock holding spring 32 arranged along the trajectory of the take-up rocking link 20. The stock holding spring 32 is provided at the upper part of the rocking trajectory B of the take-up rocking links 20, 20. Swing link 2
The stocker pressing spring 32 is arranged so as to overlap the trajectory drawn by the return side of 0, and the stocker pressing spring 32 has an end portion overlapping with the swing trajectory B.
The sweeping device for the straw tying machine, wherein the swinging locus A is extended so as to cross the intermediate position.