NL1030314C2 - Binding device for tying together bunches of e.g. flowers, includes displacement mechanism for moving tying mechanism away from knotted binder - Google Patents

Abstract

A displacement mechanism is provided for moving the tying mechanism (18) into a second working position (B) where the binder body parts are tied together, in a direction away from the tying position (13), so that the tying mechanism and tied together parts of the binder body are moved apart from each other. The device comprises a support (11) over which a bunch of plants (12) with long stems can be delivered to a tying position, a pivot arm (14) located above the plane of the support, a binder supply also located above the plane of the support, a fixation device (17) located beneath the plane of the support, and a tying mechanism located beneath the plane of the support and next to the tying position. The pivot arm can be rotated about a horizontal axis between a first position in which the free end (14a) of the arm is located above the plane of the support, and a second position in which the free end of the arm is located beneath the plane of the support and next to the tying position. The binder body, e.g. a thread, cord or elastic, is delivered from the supply via the free end of the pivot arm to the fixation device, which can hold a first stationary part of this body and an additional part of the body that has been passed around the bundle of plants by the arm. The tying mechanism receives the first stationary part and additional part of the body in a first working position (A), and clamps these parts of the body and ties them together in a second working position.

Description

Brief description: Bone egg device for binding together a bundle of long-stemmed crops.

DESCRIPTION

The invention relates to a device for binding a bundle of elongated crops with the aid of a binding body comprising a support over which a bundle of elongated crops can be moved to a binding position; a pivot arm disposed above the plane of the support and having a free arm end, which pivot arm is pivotable about a horizontal axis between a first position, the free arm end being above the plane of the support and a second position, wherein the free arm end located below the plane of the support near the binding position, a supply of binding body arranged above the plane of the support, the binding body of which can be fed via the free arm end of the pivotal arm to a holding member arranged below the plane of the support 15 arranged for holding of a first stationary part of the binding body as well as a further part of the binding body which is wrapped around the bundable bundle of stem crops by the pivotal arm, and a knot mechanism arranged under the plane of the support and near the binding position arranged for catching in a first operating condition of the first part and the further part 20 v the first part and the further part of the binding body can be clamped in the binding body and clamping it together in a second operating condition.

A device according to the aforementioned preamble is shown, for example, in Figure 4 of Dutch patent publication No. 1005613. The disadvantage that sticks to this known bone egg device is the fact that for binding a knot in the binding material, the binding material of the knotting mechanism must be moved off. This shear movement often results in the knot not remaining completely stuck, as a result of which it becomes detached during the further processing of the bundle of elongated crops.

In addition, the bone egg device according to NL-1005613 has unnecessarily large spatial dimensions.

The invention has for its object to obviate the burdened and, on the one hand, to provide a device with reduced structural dimensions and an improved knot mechanism, wherein the risk of unexpectedly loosening of the knot is considerably reduced.

To this end, the device according to the invention is characterized in that displacement means are provided for displacing the knotting mechanism in the second operating condition in a direction away from the binding position, such that the knotting mechanism and the first and further parts of the binding body that are interconnected with each other separate from each other. Because a displacement of the knot mechanism relative to the binding position is forced, the knot which is arranged around the bundled elongated crops slides contactlessly free of the knotting mechanism. Because the knot is no longer touched - as is the case with the prior art - the risk of unexpectedly loosening of the knot is reduced to a minimum.

In a specific embodiment, the knot mechanism is arranged on a vertical axis rotatable between the first and second operating condition, wherein a guide disc provided with a slot is received around the vertical axis, which guide disc in the second operating condition is a displacement of the vertical orientation directed away from the binding position. axis makes possible. With this construction it is possible to only force the knot mechanism to move away from the binding position, in order to release the knot mechanism, if the knot mechanism is brought into a different orientation relative to the device.

More specifically, the device is correspondingly characterized in that in the first operating condition the guide disc blocks the vertical axis displacement directed away from the binding position.

In a functional embodiment of the bundling device according to the invention, it is characterized in that the vertical axis is provided with a gear wheel, which gear wheel for rotation between the first and the second operating condition with a gear drive placed on a horizontal drive shaft and at least partially provided with a gear wheel. gear provided with the gear wheel cooperating.

In another functional embodiment. it is characterized in that the displacement means comprise a displacement arm cooperating with the knot mechanism, which displacement arm forces the displacement directed away from the binding position under the influence of the rotation of the drive shaft on the knot mechanism.

An effective but above all reliable operation or actuation of the knot mechanism is characterized according to the invention in that the displacement arm is connected to a first end of a hinge arm arranged with its other end pivotally relative to the fixed world, which hinge arm 1 0 3 0 3 14 3 cooperates with a first cam disk mounted on the drive shaft.

More specifically, for arranging a knot in the binding body wrapped around the bundle of elongated crops, the knotting mechanism is provided with a first, fixedly arranged clamping jaw as well as a second, pivotable with respect to the first clamping jaw, which second clamping jaw is influenced by the rotation of the vertical axis can be moved to and from the first clamping jaw.

An effective reliable control of the second clamping jaw can be obtained by, according to the invention, the second clamping jaw cooperating with a second cam disc arranged around the vertical axis.

In yet another functional embodiment with which the binding body can be wrapped around the bundle of elongated crops in an effective fast manner, according to the invention, a carrier member displaceable in the plane of the support is provided for carrying it from the free arm end to the retaining member. running part of the binding body to the binding position after the free arm end has been moved below the plane of the support during the movement from the first to the second position.

The invention will now be explained in more detail with reference to drawings, which drawings show successively:

Figure 1 shows a first view of an embodiment of a bundling device according to the invention;

Figure 2 is a top view of the bundling device shown in Figure 1.

For a better understanding of the invention, the corresponding parts will be indicated by identical reference numerals in a subsequent description of the figures.

Figure 1 shows an embodiment for a device for binding a bundle of elongated crops with the aid of a binding body. Figure 2 shows a top view of the embodiment.

The device 10 comprises a support 11 over which a bundle of elongated crops 12 can be felt to a binding position 13. At the location of the binding position 13, the bundle of elongated crops 12 is stopped and fixed for the purpose of a binding action. The bundle of elongated plants 12 is tied together with the aid of a binding body 16 which can for instance be a yarn or a cord or an elastic. The binding body 16 is supplied from a stock (not shown), wherein the supply coil is preferably arranged at the top of the device, and with reference numeral 16c the binding body 16 running from the coil is indicated. The pivot arm 14 is connected at its end 14b to a horizontally arranged pivot axis 15 and is pivotable about this axis 15 between a first position A, wherein the free arm end 14a is located just above the supporting surface 11 to a second position B where the free end 14a is located below the support surface 11 near the binding position 13.

As already mentioned, there is a supply spool for the binding body 16, not shown, at the top of the device, the binding body being fed via the wire part 16c to the free end 14a, whereafter the wire body 16 is wrapped around the bundle of elongated plants 12 to be bound together. To this end, a first free end of the wire body 16 is wrapped around the bundle of elongated plants 12 and retained by a retaining member 17 arranged below the support surface 11. The retained free wire body end 16 extends longitudinal crops to bind the bundle together in the direction of the free arm end 14a and via the wire part 16c to the supply spool (not shown).

During the pivotal movement from position A to position B, the free arm end 14a wraps the portion 16 of the binding body around the bundle of elongated crops, after which in position B the portion 16b of the bundle of elongated crops wrapped around the bundle by the arm end 14a binding body 16 is retained by the holding member 17. This holding or clamping is followed by a cross-linking mechanism which will be explained below.

For this purpose, the retaining member 17 is provided with a knot mechanism 18. The knot mechanism is adapted for this purpose in a first operating condition to capture the first part 16a and the further part 16b of the binding body 16, whereafter in a second operating condition of the knot mechanism these two parts 16a and 16b are clamped and cross-linked to create a bundled bundle of elongated plants 12.

The retaining member 17 is furthermore provided with a cutting element for severing the wire body 16 from the bundle 30 which is currently bound together, so that the bundle can be carried away from the supporting surface 11 for further processing. The cut-away part of the binding body 16 is subsequently clamped by the holding member 17 and thus again forms the first stationary part 16a of the binding body 16 for the purpose of binding a next bundle of elongated plants 12 which can be transported over the supporting surface 11 to the binding position 13.

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For this purpose, the pivotal arm 14 is pivoted back from the position B about the horizontal axis 15 to the starting position as represented by reference numeral A. The next bundle of elongated crops 12 to be bound can then be passed over the supporting surface to the binding position 13, whereafter the pivotal arm 14 is swiveled back to position B. The wire body 16 is wrapped around the bundle of elongated plants 12, whereafter the part 16b of the binding body 16 wrapped around the bundle 12 is caught by the knot mechanism in the first operating condition (together with the stationary part 16a of the binding body already held by the retaining member 17). 16). In the second operating state of the knot mechanism 18, the two thread parts 16a and 16b are cross-linked with each other.

With the aid of such a device according to the invention, large quantities of bundles of elongated crops can be effectively and quickly bound together with a binding body 16.

According to the invention, the device is furthermore provided with displacement means 25 which are adapted for displacing the knot mechanism 18 in the second operating condition in a direction away from the joining position 13, such that the knot mechanism 18 and the first and further interlinked with each other parts 16a-16b of the binding body 16 come apart from each other. Because a displacement is forced on the knot mechanism 18 relative to the binding position 13 by the displacement means 25, the knot formed by the two parts 16a and 16b of the binding body 16 slides contactlessly free of the knot mechanism 18. Thus, the knot between the two binding body parts 16a and 16b are no longer affected, as is the case in the prior art, and the risk of unexpectedly loosening the knot is minimized.

As shown in Figure 1, the knot mechanism 18 is placed on a vertical axis 19 rotatable between the first and the second operating condition. A guide disk 21 is then arranged around the shaft 19 and provided with a slot 20. The knot mechanism 18 is mounted on the guide disc 21 and a displacement directed away from the binding position 13 can be forced through the slot 20 on the guide disc 21 (and therefore on the knot mechanism 18) in the second operating condition. This displacement is shown in Figure 1 with the reference letter c.

The slot 20 that is received in the guide disc prevents the guide disc 21 from moving in the first operating condition relative to the vertical axis. In other words, in the first operating condition, the slot 20 is perpendicular to the displacement of the vertical axis 19 directed away from the binding position 13, and thus a displacement of the guide disc relative to the vertical axis is blocked.

By rotating the guide disk 21 and the knot mechanism 18 placed thereon (through 90 °), the slot 20 is oriented parallel to the direction of movement 5 (arrow C) so that the guide disk 21 together with the knot mechanism 18 is directed away from the binding position 13 by means of the displacement means 13 can be moved, wherein the slot 20 can move relative to the axis 19.

For the purpose of bringing the knot mechanism into the first and second operating condition, the vertical shaft 19 is provided with a gear wheel 23 which cooperates with a gear wheel 22 provided with a toothing 22a, which gear wheel 22 is placed on a horizontal drive shaft 26. The drive shaft 26 is rotatably driven by a suitable drive motor 29 and is mounted with its other end 26a in the housing 10 of the device according to the invention.

For the purpose of displacing the knot mechanism in the second operating position in a direction away from the binding position 13, the displacement means 25 comprise a displacement arm 24 which on the one hand cooperates with the knot mechanism 18 and on the other hand is coupled via a mechanical transmission with the drive shaft 26 and which displacement arm 24 forces the displacement away from the binding position 13 under the influence of the rotation of the drive shaft 16 on the knot mechanism 18.

The mechanical transmission mechanism is formed by a hinge arm 27 which is connected to the displacement arm 24 with a first end 27a. Furthermore, the pivot arm 27 is hinged to its other end 27b pivotally relative to the fixed pivot point and the pivot arm 27 thereby cooperates with a cam disc 28 mounted on the drive shaft 26. For this purpose, the pivot arm 27 is provided with a contact point 30 which is supported against the cam disc 28.

Rotation of the horizontal drive shaft 26 by the drive motor 29 results in a rotation of the cam shaft 28 and, accordingly, in a pivotal movement of the pivot arm 27 about the fixed pivot point 27b.

In figure 1 the hinge arm 27 is shown in the first operating position of the knot mechanism 18, while with the reference numeral 27 'the hinge arm is represented in the second operating position. In the second operating position, therefore, the displacement arm 24 in FIG. 1 will move to the right 35 and the knot mechanism 18 will also force a displacement to the right and therefore 1030314 7 a displacement directed away from the binding position 13. Simultaneously with the rotation of the cam disc 28 through the horizontal axis 26 (and therefore the movement of the pivot arm 27 to the position 27 '), the gear wheel 22 also has a corresponding rotation through which the gear wheel 23 is rotated and thus the guide disc 21 and the guide disc 21 slot 20 included therein are oriented in the second operating position relative to the vertical axis 19 such that displacement of the knot mechanism 18 by the displacement arm 24 is made possible.

More specifically, the knot mechanism 18 comprises a first fixedly clamping jaw 31 and a second clamping jaw 32 which is pivotally arranged with respect to the first clamping jaw 30, which second clamping jaw 32 is influenced by the rotation of the guide disc 21 relative to the vertical axis 19 of and is movable to the first clamping jaw 31. The second clamping jaw 32 cooperates with a second cam disc 33 arranged around the vertical axis 19.

Further, in figure 1, a carrier member 35 is also disclosed which is adapted to carry the part 16b of the binding body 16 running from the free arm end 14a to the retaining member 17 at the moment that the free arm end 14a moves during the movement has been moved from the first position (A) to the second position (B) until just below the plane of the support 11. This provision offers the possibility of operating the device even faster because in this way the binding member 16 is wrapped more quickly around the bundle of elongated crops.

In Figure 1 the carrier member is displaceable in the vertical plane while in Figure 2 the carrier member is oriented in the horizontal plane, parallel to the plane of the support 1. In the latter embodiment, the installation space 25 is hereby considerably reduced.

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Claims (10)

1 G303 1 4 guide disc in the first operating condition blocks the vertical axis movement directed away from the binding position. 1. Device for binding a bundle of elongated crops with the aid of a binding body comprising a support over which a bundle of elongated crops can be moved to a binding position; a pivot arm disposed above the plane of the support provided with a free arm end, which pivot arm is pivotable about a horizontal axis between a first position, the free arm end being above the plane of the support 10 and a second position, wherein the free arm end located below the plane of the support near the binding position, a supply of binding body arranged above the plane of the support, the binding body of which can be fed via the free arm end of the pivotal arm to a holding member arranged below the plane of the support arranged for holding of a first stationary part of the binding body as well as a further part of the binding body which is wrapped around the bundable bundle of stem crops by the pivotal arm, and a knot mechanism arranged under the plane of the support and near the binding position 20 adapted for the first operating condition catching the first part and the further the the first part and the further part of the binding body, characterized in that displacement means are provided for displacing the knot mechanism in one of the second operating condition direction directed away from the binding position, such that the knotting mechanism and the first and further parts of the binding body that are interconnected with one another come apart. 2. Device as claimed in claim 1, characterized in that the knot mechanism is placed on a vertical axis rotatable between the first and second operating condition. 3. Device as claimed in claim 2, characterized in that a guide disc provided with a slot is arranged around the vertical axis, which guide disc enables displacement of the vertical axis directed away from the binding position in the second operating condition. Device according to claim 3, characterized in that the 5. Device as claimed in one or more of the claims 2-4, characterized in that the vertical axis is provided with a gear wheel, which gear wheel for rotation between the first and the second operating condition with a gear drive placed on a horizontal drive shaft. and at least partially cooperates with a gear provided with a gear co-acting with the gear wheel. 6. Device as claimed in one or more of the foregoing claims, characterized in that the displacement means comprise a displacement arm cooperating with the knotting mechanism, which displacement arm forces the displacement directed away from the binding position on the knotting mechanism under the influence of the rotation of the drive shaft. 7. Device as claimed in claim 6, characterized in that the displacement arm is connected to a first end of a hinge arm arranged with its other end pivotally relative to the fixed world, which hinge arm cooperates with a first cam disc mounted on the drive shaft. 8. Device as claimed in one or more of the foregoing claims, characterized in that the knot mechanism comprises a first, fixedly arranged clamping jaw as well as a second, pivotable with respect to the first clamping jaw, which second clamping jaw 20 under the influence of the rotation of the vertical axis can be moved to and from the first clamping jaw. Device as claimed in claim 8, characterized in that the second clamping jaw cooperates with a second cam disc arranged around the vertical axis. 10. Device as claimed in one or more of the foregoing claims, characterized in that a carrier member displaceable in the plane of the support is provided for carrying the part of the binding body extending from the free arm end to the retaining member after the binding position after the free arm end has been moved below the plane of the support during the movement from the first to the second position. 30 1030314