SU686679A1 - Arrangement for tieing plants to trellis wire - Google Patents

Description

one

The invention relates to an agricultural technique and is intended to tie stalks to a trellis wire or stanchions.

A device for tying plants to a trellis wire is known, comprising a housing with a movable bracket attached to it and a cassette for the binding material 1.

This device, however, does not have a mechanism, which allows us to lengthen the period of time for welding tapes and cooling the seam, since the film cannot be instantly joined (welded), which affects the quality of the tie.

The purpose of the invention is to improve the quality of the tie.

This is achieved by the fact that the device is equipped with an electromagnet for driving the movable bracket, which is associated with it by coaxially mounted ratchet and cams, and the bracket is connected to the bar in contact with the electromagnet.

FIG. 1 shows a device for tying plants to a trellis wire, general view; in fig. 2 is a view along arrow A in FIG. one; in fig. 3 is a view along arrow B in FIG. one; in fig. 4 is a view along arrow B in FIG. 3; in fig. Figures 5-9 show the process of stitching a ribbon, its retention, welding and cutting.

The carrier includes a housing, electromagnets 2 and 3 with a strap 4, heating, a device 5, a mechanism for supplying and welding the bonding material, including the strap 4, a rod 6, an arcuate bracket 7 with a spring 8 and attached to the bracket

a 9N slider with a clamp 10, an I clip with a resetter 12, a tape spool 13 and an automatic current switching device comprising a ratchet 14, strips 15 and 16 with springs 17 and 18, as well as cams 19 and 20.

The drive of the bracket is produced from the electromagnet 3. When a current is passed through the windings, the electromagnet attracts the bar 4,. which rotates around the axis 21 and i, t does not have the connecting rod 6, the latter

leads the end of the staple 7, which rotates around the roller 22 and moves forward. The clamp 7 is moving back after the current has been stopped due to the action of the spring 8. The drive

clamping is carried out from the electromagnet 2, which, while passing a current through its windings, attracts the rod 23, the clamping. Reverse dive (up) the rod 23 makes after stopping the supply of current with the help of spring 24.

To securely heal the tape without danger of sticking its ends, we use a needle-type clip 11 with a blunt needle angle, ensuring they have a good tape clip without pinching it on themselves. The supply of the tape to the clamp 11 is stable due to the use of a spring-loaded slider 9 installed at the end of the bracket 7 and having a pointed end (tongue) with a slot in the middle. This end (tongue) at the time of feeding the tape, the slider 9 enters the needle of the clamp 11. The end of the tape from the coil passes through the slot of the bracket 7 and the slot of the slide 9. With the tab of the tape under the clip, the bracket 7 moves in the direction of the clamp. When the staple 7 departs, the end of the tape remains clamped. When the staple 7 is repeated, when the ends of the tape are being welded, the needle still clamps its end and the slider 9, when in contact with the clamp, moves backward, overcoming the spring resistance.

To prolong the contact time of the ends of the film during welding and cooling the seam, the current is passed through the windings of the electromagnet 3 and then when the staple 7 has made a forward stroke and reached the final position, due to which the staple is held for some time (1-2 s) in the upper position. The clamp 10 is located closer to the object viscous than the welded device, and it comes in contact with the tape before the tape is welded. Due to this, the ends of the tape at the junction (welding) will be in a free, relaxed state and conditions will be created for cooling the seam. Residues of tape, which may accumulate in the clamp, are removed by a spring-loaded release device 12, which prevents the film from sticking to the cylindrical part of the needle.

The heating device 5 can be fixed both on the bracket 7 and on the housing 25.

In order to timely supply the current to the windings of the electromagnets and turn it off, the feeder is equipped with two relays, actuated by a special device mounted on the roller 26 of the bracket 7.

The device comprises a ratchet 14 (see Figs. 3 and 4), rigidly connected with a roller 26, on which a bracket 7 is freely mounted, strips 15 and 16, springs 17 and 18, as well as a bracket 27 rigidly connected to the housing 25. The bar 15 can rotate around its axis, but under the action of the spring 17 the end of the bar 15 can rest against the ratchet protrusion, which means that the ratchet will also rotate when the bracket is up (according to the drawing - counterclockwise). Similarly, the bar 16 may rotate around its axis in the bracket 27, but under the action of the spring 18 the end of the bar may rest against the ratchet protrusion and prevent the ratchet from turning clockwise. Cams 19 and 20 are mounted on roller 26 to turn on controllable relays.

When moving the bracket forward, i.e., counterclockwise, the end of the bar 15, under the action of the spring 17, presses the ratchet protrusion and causes the ratchet to rotate together with the bracket, while the end of the bar 16 under the action of the spring 18 slides along the surface of the ratchet and drops over his ledge. When the bracket g. D is moved by the action of the spring 8, the ratchet can no longer turn back, since the end of the bar 16 abuts against the ratchet protrusion. Because of this, when moving, the strip 15 will slide back along the surface of the ratchet, after which it will drop over the next protrusion.

Thus, with the full stroke of the strap forward and back, the roller 26 rotates 90 °, and since the stem carrier is a two-cycle one, the roller 26 rotates 180 ° during the full cycle of viscous.

When the roller 26 is rotated, the cams 19 and 20 turn on the controlled relays at the right time, thereby starting the flow of current into the windings of the electromagnets. After timing the relays automatically turn off the current.

A device for tying plants to a trellis wire works as follows.

Before starting work, the binding material tape is charged into the clip AND, which is carried out with the clamp 7 going back and forth. Thereafter, the device is brought to the shoots of plants and the trellis and the bow-shaped staple 7 is wrapped around them. In this case, a layer is formed around them, the ends of which are closed with the help of clamp 10, and the heating element 5 welds them. Then the clamp 7 is retracted to its original position. Then the cycle repeats.

The process of pinching the tape, holding it, welding and trimming is carried out as follows.

During the first (initial) approach of the bracket 7 (Fig. 5), the clip is raised by the spring 24 to a height of 5-6 mm above the base.

The tongue of the slider 9 enters the gap between the needle and the clamp base, then due to the action of the electromagnet 2, the clamp is lowered and its needle clamps the tape and firmly holds it through the slot in the tongue of the slider 9.

Further, the bracket 7 moves away in the direction of arrow G, (Fig. 6), and since the front end of the tape is clamped, the tape, slipping along the inner surface of the bracket, unwinds from the reel 13 (Fig. 1) and forms a membrane (partition) between the clip 11 and a staple 7. The device is slid over the plant and stand (Fig. 7) with the overlapped membrane of the pharynx, and half-grabs them, while the tape required for the girth is unwound from the reel 13.

With further movement of the bracket 7 in the direction of the arrow D (Fig. 7), the slider reaches the clamp, the tongue of the spring-loaded slider 9 abuts the base of the clamp 11 and the slider, compressing the spring 9, moves to the right (Fig. 8), pressing the ends of the tape tightly to one another. and form a loop.

The loop formed by the heating device is welded. The heating device melts the films at the point of their occurrence and thereby cuts, fuses along the end and forms two seams. By reversing the staples, one hot seam of the films is broken, and the seam remaining on the loop hardens. The tapestry and the plant covered by the tape are connected (Fig. 9).

When the staple 7 moves away according to arrow E (Fig. 9), the current supply to the clamp electromagnet stops, as a result of which the clamp 11 rises, at which time the remaining piece of tape is removed and discarded. The device is ready for a new cycle.

The use of the invention will improve the quality of the attachment of plants to the trellis wire.

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Claims (1)

1. USSR author's certificate No. 315461, cl. A 01 G 17/08, 1970 (prototype). 1 13 View ft L7 5 FIG. 6 with coil / j