DD208748A1 - BRAKE DISPLAY FOR BALE PRESSES - Google Patents

Abstract

The object of the invention is to detect a maximum proportion of faulty bindings of different causes both for filament and for wire binding devices. The invention is based on the object of designing the fault-binding indicator arranged to control perfect bunch wrapping in such a way that salvage losses, faulty bales and re-pressing work be eliminated by binding holes. The features of the invention are that each Knüppapparat a push-button switch (2,2 ') is assigned, which is connected via an electrical power system (6) with a contactor (12) and controlled so that at the moment of node bonding of the push-button (2,2 ') solves an electrical contact and at the same time closes the contactor (12), which is associated with the switching device, an electrical contact. In case of faulty bindings due to loss of binding material, crack due to excessive pressing density or incorrect setting on the thread holder, a simultaneous switching contact on the push-button switch (2,2 ') and contactor (12) is triggered and an audible signal is triggered.

Description

Title of the Invention Binding Indicator for Balers

Field of application of the invention

The invention relates to a Pehlbindungaanzeige for balers, which is useful for both twine and for wire binding and detects and signals a maximum proportion of faulty bindings.

'Characteristic of the known technical solutions

False-bonding indicator devices for balers are already known in various designs, but these are only used with wire-wound high-pressure presses or those which display only breaks in the bonding material between the binding material supply container and the knotter in a wide variety of ways.

Thus, from US-PS 35 13 464 a device for detecting wire breaks at Heupressen known in which the knotter apparatus sliding contacts are arranged below, which produce a sliding contact on the Drahtumschnürungen and are connected to an electrical relay. The Drahtumschnürungen thereby form part of the electrical line system. If breaks occur in the Drahtumschnürung by wire tear or emptying of the wire coil, the flow of current is interrupted and an acoustic signal is triggered.

The disadvantage of this Pehlbindungaanzeige is to see it

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that it can only be used for wire-wound presses and that it can not be used in yarn bindings. On another known gathering press, the Soviet high-pressure press PSB-1,6, which straps the bales with a wire binding, there is a faulty binding display, in which immediately after the wire container in the wire run a contact spring is applied under spring load on the binding wire. This contactor changes in wire tear or end of the wire its position so that it makes an electric circuit and a light via an electric line installed in a tractor indicator lights up.

This false binding indicator also has the disadvantage that it can only be used for wire binding devices and does not signal any binding errors when it is installed in front of the binding device (knotter).

Finally, at the other known Hesaton large baler 4800 a display device for Binderaaterialunterbrechungen available. Here are mounted in the twine circulation between reservoir and Knüpfapparat Fadentaster and trained so that they protrude over the press and serve as visible control elements for the operator. Occurs in this section of the binding device a twine interruption by thread breakage or empty bobbin, the respective thread switch changes its position such that the control element no longer protrudes beyond the press and can be seen.

The disadvantage of such a false indication is the constant monitoring of the control elements required by the operating mechanism of the press in addition to the simultaneous guiding of the towing vehicle. Since this large baler is harvested bales of 500kg - 800kg, a late reworking effort is required in case of late faulty detected. In addition, only a small part of faulty bindings is signaled.

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Object of the invention

The aim of the invention is to provide a false binding indicator for balers, which makes it possible to detect a maximum proportion of false bindings both for Fadenais and wire binding devices and perceptibly convey to the tractorists.

Explanation of the essence of the invention

The invention has the object of providing the control of proper Ballenumschnürung arranged Fehlbindungaanzeige for balers and arrange so that salvage losses, faulty bales and llachpreßarbeiten be eliminated by binding disorders and losses and disturbances in the successor technology.

According to the invention this is achieved in that each knotter is assigned a push-button switch consisting of feeler lever, lever and switch, which is in communication with a contactor and is coupled via a wiring harness with an acoustic signal generator. The key switch is controlled by the thread clamped in the thread holder and leading Knoterschnabel to the press line. During the pressing cycle, immediately after each knot binding, but also when thread loss, ie whenever there is no tension of the binding material, the sensing lever is moved by spring pressure down and pushes due to its rigid connection with the switch lever to the switch and thus closes the circuit. As a result, however, an acoustic signal would be triggered even after each knot binding, although no faulty binding occurred. In order to exclude this Fehlsignalisierung and only to close the circuit, if in fact incorrect connections occur, an additional contactor is interposed, which is controlled by a switch bracket of the binding device. At the beginning of the formation of bales while the switch bracket is in a lower, fallen position and is located

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on a stop that serves for Ballenlängeneinateilung on. When pressing dea Bailena a straw is moved on the bale and tranaportiert the switch bracket aua the lower position slowly as far up, bia a bolt strikes against a rocker switch and this pivots to the switch. By this pressure on the switch, a contact is closed, which is triggered in time a hub before the knot binding and while binding remains in this position until the switch bracket falls back to its original position by a back pressure on the stop. In this phase, the lever is pivoted down due to lack of thread, the entire circuit is closed and the signaling ausagelöat. The arrangement of the Pehlbindungsanzeige invention and its assemblies after the binding device has the advantage that both Pehlbindungen be signaled by depleted binding material or tearing due to excessive molding density or Pitz on Bindematerialapanner and mismatches by threaded out of the needle binding material or improper adjustment of the binding material holder.

In this case, such a false binding indicator proves to be particularly advantageous in the harvesting process with Ballenachurre for parallel loading. So far, a recognition of binding disorders was only possible if the faulty bales had gone through the entire strand length (chute length) and were recognized in the bale delivery.

Embodiment 30

The invention will be explained in more detail using an exemplary embodiment. In the accompanying drawings show:

Pig. FIG. 1: a side view of the glue binding display at the beginning or immediately after the knot binding, FIG.

Pig. FIG. 2 is a side view of the Pehlbindungsanzeige during bale formation prior to knot tying,

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Pig. 3: a top on daa diagram of Fehlbindungaanzeige.

On the Preßkanaldecke 1 a baler not shown iat a Tastachalter 2, the iat assigned to each knotter and a complete assembly aua lever lever 4 and switch 5 forms, mounted and ateht on a elektriachea Leitungsaayatem 6 with a Pehlbindungen indicating, acoustic signal generator 7 »in Connection. This Tastachalter 2 is controlled by the clamped in the thread holder 8, on the Knoterachnabel 9 leading to Preßgutstrang 10 binding material 11. At the beginning of the pressing process or immediately after each knot binding of the sensing lever 3, which iat connected to the switch lever 4, on the Preßkanaldecke 1, as shown in Figure 1 dargeatellt, and pushes the standing under Federbelaatung shift lever 4 against a switch 5 and achließt the contact. With the advancing dea Preßgutatranges 10, the binding material 11 is stretched and raises the sensing lever 3, whereby a downward movement of the shift lever 4 is effected and the contact is interrupted. Without a zuaätzlichea switching element, a contactor 12, the Stromkreia geachlosaen would be alternately geachlosaen and interrupted and always an acoustic signal is triggered at each bale formation. However, since a signal is only to be triggered when binding material 11 is missing for node bonding and only then the circuit should be closed, an additional contactor 12 is connected to the push-button switch 2 ¹ and the signaling device 7. This contactor 12 is preferably controlled by a switch bracket of the binding device. At the beginning of the bale formation, when the Tastachalter 2 is aa in a position shown in Figure 1, the switch bracket 13 is in its lower, fallen position on a stop 14, which serves for, Ballenlängeneinateilung on. By the advancing; the Preßgutstrangea 10, on which a straw wheel 15 is running, is: the switching bracket 13 by means of a mounted on the straw gear shaft gear 17 via its toothed tooth-like toothing moves upwards. In this case, a on the switch bracket 13th

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fastened pin 18 out against an arcuate rocker switch 19, which is pivoted back to the extent that this strikes a switch 5 'and closes the circuit. This contact is made a hub before the knot binding, where by the binding material 11 of the sensing lever 3 with shift lever 4, as shown in the position shown in Figure 2, has broken contact with the switch 5 and remains through the arcuate design of the rocker switch 19 during knot binding receive. Missing in this position under the sensing lever 3, the binding material 11, the contact is also made at the switch 5, the entire circuit is closed and the signaling triggered by the signaling device 7

 Thereafter, a back pressure acts on the switch bracket 13, whereby this falls back to its initial position on the stop 14. As a result, the pin 18 releases the spring-loaded rocker switch 19 again, which pivots back and releases the object at the switch 5 'again.

Claims (3)

invention claim 1. Fehlbindungaanzeige for balers, which is useful for both thread and wire binding and a maximum proportion of false bindings detected and signaled, characterized in that a push-button (2) clamped in a binder material holder (8) and the Preßgutstrang (10) controlled binding material (11), with a contactor (12) controlled via a switch bracket (13) as part of the switching mechanism, with electrical line system (6) and signaling device (7) connected and downstream of a Knüpfapparat Preßstrangrichtung. 2. Fehlbindungsanzeige according to item 1, characterized in that shortly before, and / or at the moment of node bonding between a, an electrical contact-solving push-button (2) and a, an electrical contact closing contactor (12) is timed synchronization » 3. Fehlbindungsanzeige according to item 1, characterized in that the push-button switch (2) and contactor (12) as two separate, via an electrical line system (6) can be coupled, complete assemblies are formed. For this three sheets of drawings