JPS6242693Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is equipped with a bale chamber on a traveling device consisting of wheels or crawlers, takes hay into this bale chamber, forms a compressed hay roll, and supplies twine to this hay roll. This invention relates to a roll baler that opens a bale chamber and takes out a hay roll to the outside after winding a twine with a device.

In this type of roll baler, as the diameter of the hay roll increases, the radius of curvature of the roll forming conveyor installed in the bale chamber is increased, and the hay roll is compression molded, and the compression pressure on the outer circumferential surface of the roll reaches a set value. Some hay rolls are equipped with a means for detecting the state to confirm that the compression is complete, and then wind the twine around the hay roll and take it out of the roll chamber.

It is fine if this roll forming operation is performed according to the procedure, but for example, if the bale chamber is opened while the twine is being supplied to the compressed hay roll, the twine may be completely wrapped around the hay roll. It disappears.

Therefore, this invention has a simple structure that allows the entire roll forming operation to be performed quickly and without erroneous operation, and is structured as follows.

That is, it is equipped with a bale chamber 1 that compresses and molds hay into a roll shape, and a twine supply device 4 that supplies twine 3 to the hay roll 2 compressed and molded in this bale chamber 1, and the supply of twine 3 to the hay roll 2 is completed. In the roll baler, which opens the bale chamber 1 and takes out the hay roll 2, when the hay roll 2 is appropriately compressed, it becomes "closed" and the bale chamber 1 is opened.
When the twine 3 supply is started, the normally open bail switch SW1 is connected to the normally open bail switch SW1, which switches to "open" when the twine 3 supply is started, and switches to "closed" when the twine 3 supply is completed. An open twine switch SW2 is provided, and these switches
The roll baler is provided with SW1 and SW2 connected in series and an alarm 5 that issues an alarm when both switches SW1 and SW2 are closed.

By configuring this invention in this way, it has the following effects.

That is, when hay is taken into the bale chamber 1 and compressed into a roll shape, and the hay roll 2 is compressed appropriately, the bale switch SW1 becomes "closed", and in this state, the twine 3 is not being supplied. Since the twin switch SW2 is "closed", the alarm device 5 will issue an alarm. Then, after confirming this alarm, the worker
At this time, the twine switch SW2 is opened and the alarm that has been issued since the completion of compression stops. And Twine 3
When the supply of twine switch SW2 is completed,
will switch to "closed" and issue the alarm again. After that, the operator opens the bale chamber 1 and takes out the hay roll 2, but at this time the bale switch SW1 is set to "open" and the twine 3
The warning that had been issued since the completion of the supply will stop. That is, the operator performs the work of compressing the hay roll 2, the work of supplying the twine 3, and then the bale room 1.
The work from the time to the work of taking out the roll 2 can be performed in sequence by the alarm from the alarm 5, eliminating the risk of erroneous operation and making it possible to perform the work more quickly. Furthermore, according to this invention, confirmation of the completion of compression of the roll 2 and the completion of supply of the twine 3 at different work points can be made by simply installing the alarm 5 in the circuit in which the bail switch SW1 and the twine switch SW2 are connected in series. This can be done with a simple configuration.

Next, an embodiment of this invention will be described based on the drawings.

As shown in FIG. 1, the roll baler in this embodiment is constructed by connecting a bale chamber 1 located at the front of the machine body, which compresses and molds hay taken in by a pick-up device 6 into a roll shape, to a hand tractor 7 at the rear. It is something that The bale chamber 1 is comprised of a carry-in conveyor 9 formed on a fixed machine frame 8 and a roll forming conveyor 12 formed inside a rocking frame 11 pivoted by a pivot shaft 10 near the front of the machine body. The bale chamber 1 is opened by lifting the swinging frame 11 upward with the swinging operation lever 13 about the pivot shaft 10.

A tension member 14 is engaged with the roll forming conveyor 12 and compresses the hay roll 2 as the diameter of the hay roll 2 increases. Accordingly, it rotates around the pivot 15.

A bail switch SW1 consisting of a limit switch is provided near the tension member 14.
This bail switch SW1 is a tension member 1.
It is a normally open switch that is "closed" by the pressing operation of the pressing piece 16 in conjunction with the rotation of the switch 4. That is, by adjusting the gap W between the pressing piece 16 and the bale switch SW1, the compression pressure applied to the hay roll 2 can be adjusted.

The carrying-in conveyor 9 and the roll forming conveyor 12
A twine supply device 4 is provided on the rear outer side of the gap S formed between the two. As shown in FIG. 2, the twine supply device 4 is guided by a rotating shaft 17 in which right and left spirals are recessed, and a fixed round bar 18 disposed parallel to this rotating shaft 17, and is guided by a binding area P. It is composed of a twine guider 19 etc. that moves back and forth.

A clutch 20 is attached to the shaft end of the rotating shaft 17, and when the clutch 20 is turned on or off, the rotating shaft 17 is rotated and the twine guider 19 is rotated.
A round trip is performed. “Enter” of Clutch 20
In the "off" operation, the contact swinging piece 22 of the twin guider 19 swings upward due to the downward swinging of the operating tool 21, and normally the contact swinging piece 22 of the contact swinging piece 22 is pressed against the end face 22a of the spring. Detector 2 energized by
3 comes off the end surface 22a and is in a non-contact state, and rotates around the pivot 24 toward the twin guider 19, and due to the rotation of the detector 23, the connector 2
5 and 26 swing to move the clutch 20 in the direction of the shaft 17.

Note that the operating tool 21 automatically returns to its original position after swinging downward, and the contact swinging piece 22 returns to its original position after the twine guider 19 moves and separates from the operating tool 21 appropriately. Return to.

A gear 27 is fixed to the rotary shaft 17, and the gear 27 meshes with a gear 29 of a drive feed roll 28 provided parallel to the rotary shaft 17, thereby rotating the drive feed roll 28. A rotatable pinch roll 30 provided on the twine guider 19 presses the drive feed roll 28, and the twine box 31 is housed by the joint work of the drive feed roll 28 and the pinch roll 30. The twine 3 thus obtained is sent into the bale chamber 1 through the gap S.

Now, when the operating tool 13 is swung downward to bring the detection tool 23 into a non-contact state with the contact oscillating piece 22, the clutch 20 is turned on, the rotating shaft 17 rotates, and the twine guider 19 is rotated. Start moving. and,
When the twine guider 19 completes its reciprocating movement, the end face 22a again presses into contact with the detection tool 23 and the detection tool 23 rotates, thereby turning the clutch 20 "off" and supplying the twine 3 to the hay roll 2. Complete.

A twine switch SW2 consisting of a limit switch is provided near the connector 25 for turning the clutch 20 on and off, and the twine switch SW2 is normally kept closed by the connector 25. When the clutch 20 is turned on, the pressure is released and the clutch is opened. This twin switch SW2 and the bail switch SW1 provided in the bail chamber 1 are connected in series, and an alarm 5 consisting of a buzzer BZ is provided in this circuit (shown in FIG. 3). The alarm 5 is
It is not limited to the buzzer BZ, but may also be a pilot lamp PL. Further, 32 is a power source taken out from the prime mover 33.

FIG. 4 shows a circuit diagram of another embodiment of this invention, in which a pilot lamp PL and a buzzer BZ are used as the alarm 5, and the twin switch SW2 is equipped with two interlocked normally closed switches SW3 and SW4. using
Switch SW3 has buzzer BZ, and switch
The SW4 corresponds to a pilot lamp PL, and is provided with a flasher unit 34 which is activated by switching the switch SW4 from contact a to contact b. That is, in this circuit configuration, the alarm of the alarm device 5 is to be confirmed both visually and audibly, and even if one alarm device 5 malfunctions, it is possible to confirm it by the other alarm device. This is also what we are aiming for, when the roll compression is completed and the twine 3 supply is completed, the buzzer BZ and the pilot lamp PL are activated, and when the twine 3 is supplied, the pilot lamp is activated by the operation of the flasher unit 34.
PL will blink.

[Brief explanation of the drawing]

The figure shows one embodiment of this invention.
The figure is a partially cutaway left side view, Figure 2 is a plan sectional view of the twine supply device, Figure 3 is an electric circuit diagram of the main part, and Figure 4 is an electric circuit diagram of the main part showing another embodiment. It is. 1... Bale room, 2... Hay roll, 4... Twine supply device, 5... Alarm, SW1... Bale switch, SW2... Twine switch.

Claims (1)

[Scope of utility model registration request] a bale chamber 1 for compression-molding hay into a roll;
A roll baler equipped with a twine supply device 4 that supplies twine 3 to the hay roll 2 compression-molded in the bale chamber 1, and which opens the bale chamber 1 and takes out the hay roll 2 after the twine 3 supply to the hay roll 2 is completed. , a normally open bale switch SW which is "closed" when the hay roll 2 is properly compressed and switched to "open" when the bale chamber 1 is opened.
1 and the twine supply device 4, and at the same time the twine 3 supply is started, it becomes "open" and the twine 3
A normally closed twine switch SW2 that switches to "closed" when supply is completed is provided, and these switches SW1 and SW
2 in series, and both switches SW
1. Alarm device 5 that issues an alarm when SW2 is “closed”
A roll baler equipped with