JPH0318421Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a straw holding device in a straw supply device of a tatami machine.

(Prior art) A straw hopper is provided above a rotating supply body that has a large number of needles and rotates in one direction, and as the rotation of the rotation supply body causes straw to be hooked to the needles and pulled out from the bottom opening of the warahoppa. A straw feeding device for a tatami machine that separates straw from the needles in the lower half of a rotating feeder and transfers it to a lower stage of the tatami machine is disclosed in Japanese Utility Model Application No. 60-93634. 61-
It is known from Publication No. 8848, etc.

In this straw feeding device, in order to hook the straw in the hopper onto the needle, it is necessary to apply a predetermined pressing force to the straw in the hopper. Publication No.),
The techniques shown in FIGS. 5 and 6 have been proposed.

That is, in FIGS. 5 and 6, 1 is a hopper, which has an opening 2 in the width direction at the bottom. 3 is a rotating feeder, which has a large number of needles 3A and feeds the hopper 1.
At the same time as hooking the inner straw 4 and pulling it out,
It can be supplied onto the tatami floor foundation material 6 above.

Reference numeral 7 denotes a straw presser, which is movable up and down on a vertical plane corresponding to the upper part of the opening 2.

That is, an insertion hole 9 is formed in the horizontal beam 8, and the rod 10 of the presser 7 is inserted into the insertion hole 9, and is pressed against a spring 11 wound around the rod 10.
The rotational power of the drive shaft 12 inserted through the axis of the crank arm 13 and the spring-equipped link 14
The horizontal beam 8 is vertically raised and lowered linearly by a guide 15 etc., and the straw 4 is pressed by a spring 11.

(Problems to be Solved by the Invention) Although the conventional techniques shown in FIGS. 5 and 6 are useful to some extent, they have the following drawbacks.

; Since both the straw holding device 7 and the horizontal beam 8 move up and down in a straight line, they sometimes become large in height.

; There is a high possibility that both the insertion hole 9 of the horizontal beam 8 and the rod 10 will wear out, and if they wear out, it will interfere with linear vertical movement, and in some cases,
There was a risk that the pressers 7 would become interconnected.

; As shown in FIG.
As shown in , there are cases where the distance is far away, and in such a case,
If the pressure was continued with the presser 7, the straw 4 stuck to the needle 3 would be fed unevenly, with the base portion being uneven.

The present invention aims to solve the problems of the conventional technology.

(Means for Solving the Problems) The technical means taken by the present invention to achieve the above-mentioned object are characterized by the fact that a wall hopper is installed above a rotary supply body having a large number of needles and rotated in one direction. is provided, and as the rotating supply body rotates, the straw is hooked onto the needles and pulled out from the bottom opening of the straw hopper, and at the same time, the straw is separated from the needles in the lower half of the rotating supply body and transferred to the table of the tatami machine below. and furthermore, a plurality of pressers are arranged in the width direction above the hopper opening to press the straw downward in synchronization with the tatami bed feeding movement of the tatami machine. End side and rotating feeder 35
A support shaft 52 having an axis parallel to the rotation axis of the rotation feeder 35 is provided on a fixed base 53 on the rear side of the support shaft 52 , and a plurality of press arms 48 each having a straw presser 50 are mounted on the support shaft 52 . The straw presser 50 provided on the press arm 48 is vertically swingable in the hopper 22 in correspondence with the opening 26 about the support shaft 52, and this swing is caused by the presser 50. When the straw A moves from the top to the bottom, the root of the straw A is pushed into the rear wall 25 of the hopper 22, and furthermore, the supporting shaft 52 is connected to both ends in the axial direction by a connecting beam 55. A press bar 54 is attached, and each of the press bar 54 side and the press arm 48 is attached to at least one of the springs 54 to move the press bar 54 to the support shaft 5 in synchronization with the tatami bed feeding movement of the laying machine.
2 is provided with a drive interlocking means 59 that swings vertically about 2.

(Function) When the straw A is put into the hopper 22 and the crank arm 63 constituting the drive interlocking means 59 rotates, the straw A is passed through the crank rod 64 to the press bar 5.
4 is lowered around the support shaft 52.

At the same time, the press arm 48 is connected to the press bar 5.
4 is elastically pulled by a spring 56, the press bar 54 is lowered together with the support shaft 52, and the presser 50 enters the hopper 22.

When the presser foot 50 gets on the straw A in the hopper 22,
The press arm 48 stops at its corresponding position, but the press bar 54 continues to descend further.

For this reason, the press arm 48 has a spring 56
As a result, the presser 50 attached to the press arm 48 presses the straw A by the action of the spring 56, and also acts to push the root part of the straw A into the rear wall 25 of the hopper 22. , the root portions of the straw A are aligned as shown in FIG.

When the crank arm 63 passes the bottom dead center and rises, the press bar 5
4 is raised around the support shaft 52, and as the press bar 54 rises, the bar 54 side comes into contact with the press arm 48, and the press arm 48 is also raised together with the press bar 54, and the presser 50 is lifted. It is lifted out of the hopper 22.

The press bar 54 stops near the top dead center when a clutch (not shown) is disengaged (as shown by the chain line in FIG. 1).

At this time, the rotating supply body 35 rotates in synchronization with the feed from the tatami machine, catches the straw A pressed by the presser 50, draws it out, and sends it onto the work stand 20.

When the tatami machine finishes feeding, a signal is output from the tatami machine, the clutch is engaged again, and the crank arm 63 is rotated in synchronization with the tatami floor feeding movement of the tatami machine, producing the same effect as described above.

(Example) An example of the present invention will be described in detail with reference to FIGS. 1 to 4.

In Figures 1 and 2, reference numeral 20 denotes a work stand connected to the rear of the main body of the tatami machine (not shown). 21 and the upper layer A1 can be stacked and transported in the direction of arrow X.

Reference numeral 22 denotes a hopper, which is composed of a bottom wall 23, a pair of left and right side walls 24, and a rear wall 25. An opening 26 in the width direction is formed at the rear of the bottom wall 23, and a hopper 27 etc. is formed above the work table 20. It is provided through.

In this embodiment, straw for upper distribution (rice straw, but hereinafter simply referred to as straw) is housed in the hopper 22, and in this case, the straw A is housed with its root end first.

The straw A is untied by a binding cord cutter 29 provided on one side of the input port 28 and then inputted, and the bottom wall 23 is provided with a projecting plate 30 for alignment.

The protruding plate 30 is urged in the protruding direction by a spring, and is supported by a pin shaft 34 with its vertical movement range adjustable by vertical stoppers 32 and 33.

Reference numeral 35 denotes a rotating supply body, which can be rotated freely around the horizontal axis between the opening 26 of the hopper 22 and the loading table 20, and has a large number of needles 36.
At the same time as hooking and pulling out the straw A in the hopper 22 at the step 6, the straw A in the lower half of the rotating feeder 35 is pulled out.
can be separated from the needle 36 and supplied to the base material 21.

In this embodiment, a shaft 37 is inserted over the rotational axis of the rotational supply body 35, and both ends of the shaft 37 in the axial direction are supported on the frame 27 via a bearing bracket 38, and the rotational supply is supplied onto the shaft 37. The body 35 is fitted around the body 35 so as to be relatively rotatable.

Further, the rotating supply body 35 includes a pair of left and right end plates 39 having a disk shape, and beam members 40 installed parallel to each other between the end plates 39 and spaced apart in the circumferential direction.
It consists of a needle holder 42, etc., fitted into a radial groove 41 formed in the end plate 39, and a sprocket wheel 43 is attached to one end plate 39, and the sprocket wheel 43 is connected to the arrow 45 via a winding transmission body 44, etc. It can be rotated in any direction.

Note that the needle 36 is mounted on the needle holder 42, and the needle holder 42 is guided by cam members 46 and 47, so that the needle holder 42 is guided inward and outward in the radial direction within the groove 41. So, needle 36
is capable of appearing and retracting from the surface of the rotating supply body 35.

That is, the cam member 46 is a cam for protruding the needle 36 and maintaining the protruding state, and the cam member 47 is a cam for maintaining the retracted state of the needle 36.

Reference numeral 48 designates a press arm, the side surface of which is approximately L-shaped, and a straw presser 50 having an auxiliary presser 49 is attached to one end thereof, and the presser corresponds to the opening 26 of the hopper 22; A boss portion 51 at the other end is rotatably fitted onto a support shaft 52.

The support shaft 52 is supported by a base 53 slightly above and behind the rotation axis of the rotation supply body 35, and is parallel to the rotation axis of the rotation supply body 35. A boss portion 51 of the arm 48 is fitted over the arm.

That is, in this embodiment, eight press arms 4 are used.
8 are arranged in a row in the axial direction of the rotary supply body 35, and the presser 50 is swingable up and down in the hopper 22 in a circular arc or an inclined locus about the support shaft 52, so that it can freely appear and retract. At this time, the swinging of the presser 50 from above to below can press the root portion of the straw A toward the rear wall 25 of the hopper 22, as shown in FIG.

Reference numeral 54 denotes a press bar, one end of which is rotatably fitted into both axial end portions of the support shaft 52 and extends forward (to the left in FIG. 1), and a longitudinally intermediate portion of the press bar 54. are connected to each other by a connecting beam 55, and each of the connecting beam 55 and the press arm 48 is elastically pulled by a spring 56 shown in a coil shape.
A bracket 57 protrudes upward and rearward from 5, and cushion rubber 5 is placed at a position corresponding to each press arm 48.
8 is installed.

59 is a drive interlocking means, which transmits the rotational power of the electric motor 60 and the reduction gear 61 with an electromagnetic clutch shown in FIG. 2 to the press bar 54;
It consists of a sprocket 62 fixed to one end, a crank arm 63 fixed to both ends of the shaft 37, and a crank rod 64 which pivotally connects each crank arm 63 and the press bar 54, respectively.

That is, when the sprocket 62 is rotated and stopped by turning on and off the clutch of the reducer 61, and the crank arm 63 is rotated around the shaft 37, the press bar 54 is rotated around the support shaft 52 via the crank rod 64. (fulcrum) in the vertical direction between point B and point C in FIG.
It is configured to move in an upward and downward arc between the points with the support shaft 52 as the center.

That is, with the press bar 54 at point B in FIG. 1 and the presser 50 at point D in FIG. 1, the straw A is put into the hopper 22, and the clutch of the reducer 61 is turned on. When the crank arm 63 is rotated in the direction of arrow G in FIG. 1, the press bar 54 is lowered by the crank rod 64.

Since each press arm 48 is attracted to the press bar 54 by a spring 56, each press arm 48 is also lowered together.

During this lowering process, the presser 50 is moved to the hopper 22
When each presser 50 is placed on the straw A in the hopper 22, it is stopped at this position by each press arm 48, but the press bar 54 continues to descend.

Therefore, the presser 50 is in a state of pressing the straw A due to the elastic force of the spring 56, and on the other hand, when the crank arm 63 is raised past the bottom dead center, the press bar 54 is raised from point C by the crank rod 64. During this raising process, the press arm 48 is raised with the cushion rubber 58 in contact with the press arm 48, thereby returning the presser 50 to point D.

The crank arm 6 is located near point D of this presser 50.
It is near the top dead center of 3, and the reducer 61 is near this area.
The clutch is disengaged and the motor is temporarily stopped at this position.

During this stop or rest period, the rotary supply body 35 is rotated in the direction of arrow 45 in FIG.
The straw A is reliably hooked and pulled out after the pressing force by the presser 50 is applied.

Also, when pulling out the straw A with the needle 36, the projecting plate 30
The vertical movement of the pusher 30A and the spring 3 shown in FIG.
When it is swung up and down around the pin shaft 34 via 1,
It is possible to reliably separate the straw A caught on the needle 36 from the straw that is not, and prevent the needle 36 from breaking.

When the tatami machine finishes feeding, the clutch of the speed reducer 61 is turned on again in response to a signal from the tatami machine.
It operates as described above.

Additionally, in FIG. 1, reference numeral 65 is a brake spring, which ensures that the crank arm 63 stops near the top dead center, and is suspended between the middle of the press bar 54 and the fixed side.

66 is a safety switch for detecting the remaining amount of straw, and the switch operating body 6 provided on the press arm 48
7 activates an alarm such as a buzzer or lamp when it comes into contact with the terminal.

That is, a safety switch 66 is provided on the rear wall 25 of the hopper 22 to notify you before the presser 50 reaches point E.

68 indicates the safety card, press arm 4
It is surrounded by the outside of 8.

(Effects of the invention) According to the invention, when the straw A stored in the hopper 22 is hooked and pulled out by the needle 36 of the rotating supply body 35 and fed to the work table 20, the straw A is fed to the needle 36.
In order to ensure that the straw is hooked, the straw A is pressed with the presser 50, but this pressing force is not in the vertical direction;
Since it acts in the direction of pressing the straw A toward the rear wall 25 of the hopper 22, even if the roots of the straw A are uneven, they can be aligned, and when the needle 36 is inserted here, the straw A Since they are aligned and pressed together, unevenness in the drawer can be eliminated.

Further, since the press arm 48 having the presser 50 does not move linearly in the vertical direction but swings, the height of the entire apparatus can be reduced.

Furthermore, since both the press arm 48 and the press bar 54 are oscillated and both are elastically pulled by the spring 56, the structure is extremely simple.

[Brief explanation of drawings]

Fig. 1 is an overall side view of the present invention, Fig. 2 is a partially sectional front view, Fig. 3 is an enlarged sectional view of the main part, and Fig. 4 is an enlarged sectional view of the main part.
5 is a front sectional view of the conventional example, and FIG. 6 is a longitudinal sectional view of FIG. 5. 22... Hopper, 25... Rear wall, 26... Opening, 35... Rotating supply body, 36... Needle, 48...
Press arm, 50... Presser, 52... Support shaft, 54... Press bar, 56... Spring,
59... Drive interlocking means.

Claims (1)

[Claims for Utility Model Registration] A straw hopper is provided above a rotary feeder having a large number of needles and rotated in one direction, and the rotation of the rotary feeder pulls straw from a lower opening of the warahopper to the needles. At the same time, the straw is separated from the needles in the lower half of the rotary supply body and transferred to the tatami machine stage below. In a device in which a plurality of pressers that press the straw downward in synchronization with the movement are arranged in the width direction, the bottom rear end side of the hopper 22 and the rotating feeder 35
A support shaft 52 having an axis parallel to the rotation axis of the rotation feeder 35 is provided on a fixed base 53 on the rear side of the support shaft 52 , and a plurality of press arms 48 each having a straw presser 50 are mounted on the support shaft 52 . The press arms 4 are attached to each other, and the press arm 4 is centered around the front support shaft 52.
The straw presser 50 provided in 8 is vertically swingable in correspondence with the opening 26 within the hopper 22, and when the presser 50 moves from above to below, the straw presser 50 presses the root of the straw A into the hopper 22. The movement is such that the support shaft 52 is pushed into the rear wall 25. Further, press bars 54 are attached to both ends of the support shaft 52 in the axial direction and are connected to each other by a connecting beam 55.
4 side and each of the press arms 48 are elastically pulled together by a spring 56, and at least one of the press bars 54 is moved to the support shaft 52 in synchronization with the tatami bed feeding movement of the laying machine. Drive interlocking means 59 that swings vertically around the center
A straw pressing device in a straw feeding device of a tatami mat machine, characterized in that the straw holding device is equipped with the following.