FR3055511A3 - APPARATUS FOR PACKING BALLOTS - Google Patents

Abstract

A bale wrapping apparatus comprising a support frame (22) and at least a first wrapping arm (28a) rotatably mounted on the support frame (22), a first roll holder (34a) for carrying a first roll of protective film (102), characterized in that at least one other roll holder (34b) for carrying at least one second roll of protective film (102) is additionally located in the first wrapping arm (28a).

Description

The invention relates to a bundling apparatus comprising a support frame and at least a first packaging arm which is supported on the support frame and which is provided with a first support of roller for carrying a first roll of protective film.

Forages and hay are often kept in round bales. For bale baling, combined machines are used which are towed behind a tractor, which drive a layer of fodder on the field into the bale chamber and form a cylindrical round bale from the bale from the baler. The round bundle is transported from the baling chamber to the wrapping table of the wrapping apparatus, where an airtight and watertight plastic protective film is securely wrapped around the bundle. The packaging apparatus has two wrapping arms, the ends of which are arranged on opposite sides of the round bundle arranged on the wrapping table. At the ends of the packaging arms is a roll of protective film, from which the protective film unwinds while the wrapping arms rotate around the round bundle. As the wrapping arms rotate, the round bundle rotates simultaneously on the wrapping table at the backing rolls. When a sufficient amount of protective film is wrapped around the round bale, the protective film unwinding from the roll is detached and the round bale wrapped with protective film is ejected from the packing table.

The operation of known packaging apparatus has certain disadvantages. Several layers of protective film need to be wrapped around the bundle, which is why it takes a long time to pack the bundle. When the rolls of protective film are empty, the rolls consumed must be replaced by new rolls of protective film in the packaging apparatus. The exchange of rolls of protective film by the user of the combined machine is done by hand, so that the baling operation needs to be totally interrupted for the replacement of the rolls of protective film. The object of the invention is to provide a package of packages of bales to reduce the problems associated with known packaging devices.

The objects of the invention are achieved by a packaging apparatus which is characterized by what is set forth in the independent claims. Some preferred embodiments of the invention are set forth in the independent claims. The invention relates to a bale packaging apparatus comprising a support frame and at least a first packaging arm rotatably mounted on the support frame. A first roll holder for carrying the first roll of protective film is in the first packaging arm. In the apparatus according to the invention, at least one second roll holder for carrying at least one second roll of protective film is further located in the first wrapping arm. Therefore, at least two roll supports are located in the first wrapping arm, so that at least two rolls of protective film can be attached thereto. The protective film is wrapped around the bundle because the wrapping arm and the roll of protective wire arranged on the arm roll holder are rotated around the bundle. As the wrapping arm rotates, at least two layers of protective film unrolled from the protective film rolls are wrapped around the bundle.

In a preferred embodiment of the bale packaging apparatus according to the invention, there is additionally at least one second packaging arm rotatably mounted on the support frame and provided with a first roller support serving carrying a first roll of protective film and at least one second roll holder for carrying at least a second roll of protective film.

In a second preferred embodiment of the bale wrapping apparatus according to the invention, there is in each wrapping arm a first end at which the first wrapping arm and the second wrapping arm are connected to each other and a second end at which the first and second roll holders are arranged. Since the first and second wrapping arms are connected to each other, they can both be rotated simultaneously by means of a common rotation motor.

In a third preferred embodiment of the bale packaging apparatus according to the invention, a first leg, on which the first roller holder is arranged, and a second leg, on which the second roller holder is arranged, are located at the second end of each packaging arm, the first and the second branch being arranged at a distance from one another.

In another preferred embodiment of the bale wrapper according to the invention, a wrapping table is used to package the bales and the roll holders in the first wrapping arm are arranged on the first facing the wrapping table and the roll holders in the second wrapping arm are arranged on the second side of the wrapping table. Preferably, the roll holders are arranged in the first packaging arm and the roll holders in the second packaging arm are arranged on opposite sides of the packaging table.

In another preferred embodiment of the bale packaging apparatus according to the invention, the first roll support and the second roll support have a longitudinal direction and the first roll support is, from the point of view of the longitudinal direction of the roll supports, closer to the plane defined by the packing table than the second roll holder. The first roll holder and the second roll holder are therefore in the height direction at a different level from each other when the packager is in the normal use position. The protective films taking up rolls of protective film are therefore applied to the surface of the bundle to be wrapped so as to overlap.

In another preferred embodiment of the bundle packaging apparatus according to the invention, it is provided that the roll holders rotate around the bundle placed on the packing table while the packing arms are rotating. .

An advantage of the invention is that the time required to package the bales is considerably shortened.

Furthermore, an advantage of the invention is that the time interval between the exchange of the protective film rolls is considerably longer, so that the effective working time of the packager increases. The invention is explained in more detail below. In the description, reference is made to the accompanying drawings, in which Figure 1a shows a combined machine as an example in a side view, the combined machine being equipped with a bale wrapping apparatus according to the invention. FIG. 1b shows the combined machine of FIG. 1a, seen from above, FIG. 2a shows by way of example a bale packaging apparatus according to the invention, from above, FIG. 2b shows the apparatus of Figure 2a, seen from the side.

In Figures 1a and 1b is shown by way of example a combined machine according to the invention, which is equipped with a bale packaging apparatus according to the invention. In Figure 1a, the combined machine is shown from the side and in Figure 1b seen from above. Both figures are described simultaneously later.

The combined machine has an elongate frame 10 consisting of beam-type parts, on which are fixed two axes at the ends of which are located tires 11. At the first end of the frame is a drawbar 13, which has a hitch eye for attachment to a work machine or tractor. At one end of the frame is additionally a bale-pressing chamber 40, at the edge of which are arranged, on the face of the hitch eye, means for picking up the bale-pressing material from the field and bring it to the bale chamber. Inside the bale-pressing chamber is a bale-pressing means, by which the material conveyed into the bale-pressing chamber, such as forages and hay, is transformed into round bales. . The bale-pressing chamber has a front portion 44 securely connected to the frame 10 and a rear wall 42, which can be opened and secured by its upper edge to the upper edge of the front portion in the manner of a hinge. The rear wall can be rotated into an open position, so that the bale formed in the bale chamber can roll out of the bale chamber. The bale-pressing means forming part of the bale-pressing chamber are a technique known per se, so that they are not explained in more detail in this context. At the other end of the frame 10 of the combined machine is a packing table 36, on which the bundle formed in the baling chamber 40 is transported to be wrapped with a protective film. The packing table can be a stationary part fixed to the frame or can move in the longitudinal direction of the frame. For the protective film package, a bale packaging apparatus according to the invention is located in the combined machine. The bale wrapping apparatus comprises a support frame 22, which consists of shaped tubular pieces, of which two parallel pillars are part and a shaped horizontal tube 24, which connects the first ends of the pillars one to the other. 'other. The pillars are fixed at their other end to the frame 10 of the combined machine. The horizontal tube has a forearm support 26, on the underside of which are located two packaging arms, the first packaging arm 28a and the second packaging arm 28b. The packaging arms are connected to each other at their first ends so as to form a continuous part. The second ends of the packaging arms bend downward in a position substantially perpendicular to the plane of the frame of the combined machine. When the combined machine is in an operating position according to Figure 1a, the other ends of the packaging arms are in a substantially vertical position. At the second end of each packing arm are two roll holders, the first roll holder 34a and the second roll holder 34b. The packaging arms are dimensioned such that the protective film rolls 102 arranged at their second ends on the roll holders are on opposite sides of the bundle 100 arranged on the packing table 36 at approximately mid-height of the bundle. Near the point of contact of the first ends is an axis 30, which extends through a supported hole in the forearm support 26 and which is connected to a rotation motor 32 located above the forearm support. With the aid of the rotation motor, the axis and packing arms 28a, 28b fixed thereon are rotated, so that the protective film rolls 102 at the ends of the packing arms and attached to roll 34a, 34b rotate around the bundle 100 placed on the packing table 36.

Figure 2a illustrates by way of example a bale packaging apparatus according to the invention seen from above and Figure 2b shows the same device seen from the side. Both figures are described simultaneously later. In FIG. 2b, only the second packaging arm 28b can be seen, the first packaging arm 28a not being visible, since it is located behind the bundle 100 located on the packing table 36. The two packaging arms of the bale packaging apparatus are substantially identical. The packaging arms are connected to each other at their first end, so that the adjacent parts at their first ends are arranged substantially on the same straight line. The second ends of the packaging arms flex substantially at right angles to the sections that are adjacent to the first ends. The second ends of the packaging arms are divided into two branches, the first leg 38a and the second leg 38b. When the packaging apparatus is in the operating position according to Fig. 2b, the arms of the packaging arms are in a substantially vertical position and their ends are downwardly oriented. The first roll support 34a is arranged at the end of the first branch and the second roll support 34b is arranged at the end of the second branch. The first branch and the second branch have different lengths, or their ends reach more or less far from the plane defined by the packing table 36. The lengths of the branches are dimensioned so that the center of the roll of protective film 102 arranged on the first roller support 34a is located approximately above the center axis of the bundle 100 arranged on the packing table and the center of the roll of protective film 102 arranged on the second support roll 34b is is located approximately below the center line of the round bale arranged on the packing table.

During the winding of the protective film, the packaging arms 28a, 28b are rotated about the axis 30 by means of the rotation motor 32, so that the rolls of protective film arranged in the roll supports 34a , 34b rotate around the bundle 100. During the rotary motion, the protective film is dispensed from the roll of protective film to the surface of the bundle. The bundle to be wrapped is rotated, during packaging, about its longitudinal axis on the support rolls of the wrapping table 36, so that the outside surface of the bundle is fully wrapped with a protective film. When a sufficient amount of protective film is located on the outer face of the bundle, the movement of the packaging arms is terminated and the protective film is detached by means of cutting devices forming part of the apparatus (the cutting devices are not shown in the figure).

The following are some of the preferred embodiments of the bale wrapper. The invention is not limited to the solutions previously described, and the inventive idea can indeed be applied in different ways within the limits defined by the claims.

Claims (8)

claims A bale wrapping apparatus comprising a support frame (22) and at least a first wrapping arm (28a) rotatably mounted on the support frame (22) with a first roll support (34a) for carrying a first roll of protective film (102), characterized in that at least one other roll holder (34b) for carrying at least one second roll of protective film (102) is additionally in the first arm packaging (28a). Bale packaging apparatus according to claim 1, characterized in that it additionally has at least one second packing arm (28b) rotatably mounted on the support frame (22), provided with a first roll holder (34a) for carrying a first roll of protective film (102) and at least one second roll holder (34b) for carrying at least a second roll of protective film (102). A bale wrapping apparatus according to claim 2, characterized in that each wrapping arm (28a, 28b) has a first end at which the first wrapping arm (28a) and the second wrapping arm packaging (28b) connect to each other and a second end at which the first support roll (34a) and the second support roll (34b) are arranged. Bale packaging apparatus according to claim 3, characterized in that a first limb (38a), at which a first support roller (34a) is arranged, and a second limb (38b), at a second support roll (34a) is located at the second end of each packing arm (28a, 28b), the first and second legs (38a, 38b) being arranged at a distance from each other. the other. Bale packaging apparatus according to claims 2-4, characterized in that the apparatus has a packing table (36) for the bundles (100) to be wrapped and the roll holders (34a, 34b) in the first wrapping arm (28a) are on the first side of the wrapping table (36) and the roll holders (34a, 34b) in the second wrapping arm (28b) are on the other side face of the packing table (36). Bale packaging apparatus according to claim 5, characterized in that the roll holders (34a, 34b) in the first packaging arm (28a) and the roll holders (34a, 34b) in the second arm of packaging (28b) are arranged on opposite sides of the packaging table (36). Bale packaging apparatus according to claim 5 or 6, characterized in that the first roller support (34a) and the second roller support (34b) have a longitudinal direction and the first roller support (34a) is closer to the plane defined by the packing table (36) than the second roll holder (34b), as viewed from the longitudinal direction of the roll holders (34a, 34b). Bale packaging apparatus according to claims 5-7, characterized in that the roller supports (34a, 34b) are arranged to rotate around the bundle (100) arranged on the packing table (36) while the wrapping arms (28a, 28b) rotate.