DD276419A1 - DRIVE AND LIFTING MECHANISM - Google Patents

Abstract

The drive and lifting mechanism finds application in known cylindrical plant cassettes for bare-root young plants of agriculture and forestry, fruit, vegetable and ornamental plant production. The aim of the invention is to modify a known drive and lifting mechanism to the effect that the friction between the bars of the bar support plate and the magazine plate excluded and the function of the control loop - correction of the plant layer thickness compared to the pitch of the thread of the spindle - unbeeintraechtigt. This is achieved on the one hand by a releasable formschlüssige connection between a magazine plate and the drive and lifting mechanism, to which a thumbscrew is connected to a spindle nut via a bore and a Laengsnut in Fuehrungsrohr, wherein the bore below the magazine plate in a belonging to the magazine plate Huelse on the other hand via a releasable formschlüssige connection between a rod carrier plate and the drive and lifting mechanism by the Schluesselflaechen the Fuehrungsrohres engage in the arranged on the rod carrier plate driver.

Description

For this 2 pages drawings

Field of application of the invention

The drive and Huhmeohsriismus apply bfci bnkannten cylindrical plant cassettes for bare-root young plants of agriculture and forestry, fruit, vegetable and ornamental plant production.

Characteristic of the known technical solutions DD 223049A1 a filling and dispensing device for a known according to DD 221910A1 cylindrical is known PflanzenkasseUe (summarized in the international application DE 3416489A1, NL8401397, DK 2153/84, UVR 1742/84),

which consists of a rod carrier plate, a magazine plate and a closure plate.

Din S'abträgorplatte is covered by the magazine plate, over which the closure plate is arranged, wherein vertically, in

carried on the rod support plate concentric arrangement, rods, the magazine plate penetrating, provided and in the

Verechlußpiatte are held. The magazine plate is during the filling and emptying process via a bayonet lock with a lifting mechanism

which allows you to "move vertically in the Boreich between the bar support plate and shutter plate, sliding on the bars.

The offset via the Hubmechenismus in rotary motion magazine plate takes over touching contact with the rods the Rod carrier plate with. During filling, the magazine plate lowers. About a control loop ensures that by scanning the length of the

free rod ends above the Befüllebene their constant height with different plant material and thus fluctuating

Strength of the individual plant layers is maintained. With the storage of the plants in the cassette is simultaneously a

lagentrenriende? Thread fed and stored at the pitch circle formed by the rods. The train on don Faden takes place in each case by the rotating, the Faden aufwegende Pflanzenkas'.etie

As the filling volume increases, the pitch circle diameter of the free rod ends becomes smaller due to the tension of the thread

that the friction between the bars and the magazine plate is so large that the bayonet connection between the

Lifting mechanism and the magazine plate eliminates the effect of the control loop by the magazine plate does not lower. During the removal process, where the magazine plunger moves back up, the friction between the bars and the Magazine plate so large that the magazine plate jammed. The bayonet connection is on the other

Within the plant / thread column, so that the removal of the lifting mechanism from the cassette after the cassettes or the reinsertion in the cassette before the planting is quite difficult, since this connection point is not visible.

This change is very time consuming and not user friendly. ZIuI the invention

The aim of the invention is to change a known drive and lifting mechanism to the effect that the friction between the bars of the bar support plate and the magazine plate excluded and the function of the loop-correction of Pflarizenlagendicke against the pitch of the thread of the spindle - unimpaired.

Explanation of the essence of the invention The object of the f indung

The object of the invention is to achieve an up and down movement of the magazine plate without contact to the rods arranged in it carrier plate

Feature? ti invention

Erfindurv jernäß the object is achieved in that in the known drive and lifting mechanism, consisting of a rotatably mounted in a guide tube spindle with spindle nut, in one of the two radial threaded holes of the spindle nut a threaded pin is arranged in one of the two longitudinal grooves of the guide tube protrudes maximally to the outer circumferential surface of the guide tube.

It is made a releasable positive connection between the magazine plate and the drive and lifting mechanism, for example by means of a thumb screw from the outside below the magazine plate by two rods of the rod carrier plate, through a hole in the magazine plate belonging to the sleeve and by a LSngsnut of the Inserted drive and lifting mechanism belonging guide tube and is screwed into the still existing in the spindle nut threaded hole.

It is within the meaning of the invention that at both ends of the guide tube fittings are arranged, which enter into a form-fitting or Krartechlüssfge connection with the correspondingly formed counterpart of the rod carrier plate. The bore in the magazine plate for carrying out the rods are dimensioned so large that, despite the radial Deformatior of the rods' iurch the string no contact of the rods with the magazine plate occur. The function can be represented as follows:

Before Befüljvorgang the magazine plate is to raise by hand, durchzustecken the drive and lifting mechanism through the sleeve of the magazine plate and are to bring the fittings in engagement. Thereafter, the hole in the Hüise the magazine plate and the threaded hole in the spindle nut align with each other and the thumbscrew is screwed.

The offset by a central drive in rotation drive and lifting mechanism takes over the thumbscrew Magezinplatte and about interlocking fittings, the rod support plate.

After filling the cassette, the magazine plate is at the bottom, the toggle screw must be unscrewed and the drive and lifting mechanism must be removed. The drive and lifting mechanism must be rotated by 180 ° and ready for the next plant cassette to be filled. Before planting the drive and lifting mechanism is to be inserted from above into the cassette, the fittings are to be engaged, align the threaded bore of the spindle nut by turning the spindle by hand to the bore in dor sleeve of the magazine plate and screw the toggle screw.

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

Fig. 1: drive and lifting mechanism partially in section Fig. 2: Sclinittdarstcllung.

The drive and lifting mechanism consists of one in a guide tube 1 with two offset by 180 * to each other Liingsnuten 2 rotatably mounted spindle 3 and a spindle nut 4. In the spindle nut 4, a threaded pin 6 is arranged,

which projects into one of the longitudinal grooves 2 of the guide tube 1. The magazine plate β is releasably and positively by a

Toggle 7, through the bars 8, through a bore of the sleeve 9 of the magazine plate β below the same and through the

another longitudinal groove 2 of the guide tube 1 is inserted, connected to the spindle nut.

The guide tube 11st releasably and positively connected to the rod support plate 10 via the at both ends of the Guide tube 1 arranged Schlütselflächen 11 and din driver 12 of the rod support plate 10th To fill the plant cassette is the drive and lifting mechanism, in the position in which the spindle nut 4 above

is to stick through the sleeve 9 of the magazine plate 6 and the key surfaces 11 of the guide tube 1 with the

To bring drivers 12 of the rod carrier plate 10 into engagement. The bore in the sleeve 9 and the threaded hole in the spindle nut 4 are by vertical displacement of the Align magazine plate β to each other and the toggle screw 7 is screwed. When filling the plant cassette is known, the guide tube 1 by a central drive in rotary motion

offset and controlled the downward movement of the magazine plate β by means of a control loop. It is due to the positive

Connection between both magazine plate 6 and guide tube 1 and between the rod support plate 10 and guide tube. 1

and by the size of the Botin ngen in the magazine plate 8 ensures that the bars 8 and the magazine plate β do not touch. After filling Jerry Cassettes The knob 7 is to be unscrewed and the drive and

Remove lifting mechanism. For planting, the insertion of the drive and lifting mechanism takes place in the filled plant cassette at the bottom

For screwing the toggle screw 7, the hole in the sleeve 9 and the

Threading in the spindle nut 4 by turning the spindle 3 to match. The removal of the Plants are done in a known manner.

Claims (3)

A drive and lifting mechanism for a cylindrical plant cassette having a Stabträgerplatte, Magazinpiatte and closure plate, wherein the drive and lifting mechanism arranged on a guide tube known per se key surfaces (drive mechanism) and L ängsnuten and a rotatably mounted in the same guide tube spindle per se known spindle nut (drive and lifting mechanism), characterized in that a releasable positive connection between a magazine plate and the drive and lifting mechanism is provided in which, for example, a thumbscrew is connected to a spindle nut via a bore and a longitudinal groove in the guide tube , wherein the bore is below the magazine plate in a sleeve belonging to the magazine plate. 2. Drive and lifting mechanism according to claim 1, characterized in that a spindle nut in one of the existing, radially arranged threaded bores has a threaded pin which projects in one of the two longitudinal grooves of the guide tube maximally to the outer surface of the guide tube. 3. Drive and lifting mechanism according to claim 1, characterized in that at both ends of the guide tube fittings are arranged, which form a positive or non-positive connection with the correspondingly formed counterpart of the rod carrier plate.