FI87970B - Rotobaler - Google Patents

Abstract

A rotobaler which comprises a baling chamber 18 to which the materials to be baled are fed through the feed opening 15 in the chamber, and, arranged on the inner walls of the baling chamber, or in their vicinity, baling members 1, 2 for producing a round bale of the feed material. The invention is realized in such a way that the baling members 2 on the bottom of the baling chamber 18 are arranged on a movable support 8 or the like, so that the baling members 2 can be driven out from the baling chamber 18 and used as a base for the bale-packing stage. <IMAGE>

Description

87970

ROUND BALER - RONDBALARE

The present invention relates to a round baler according to claim 1.

5

Today, fresh fodder is made with a round baler and a separate round bale wrapping machine in which a film, preferably a plastic film, is wrapped around the bale. In this case, several tractors are needed, each towing their own 10 implements (round baler or wrapping machine). Alternatively, a time-consuming change of implements is used, in which case the bale wrapping machine is changed to the tractor after the baler has been used. In addition, it is time consuming to transport the bales to the wrapping site for wrapping in plastic film.

15

The success of fresh fodder depends essentially on how quickly the bales are wrapped in airtight plastic film after baling. The time is about two hours.

The object of the present invention is to avoid the disadvantages of using the prior art and to provide a completely new type of round baler.

The invention is based on the fact that some of the baling members used for forming the bale 25 can be pushed out of the baling chamber and used as a base in the bale wrapping step.

More specifically, the round baler according to the invention is characterized by what is set forth in the characterizing part of claim 1.

Significant advantages are achieved with the round baler according to the invention. Combining the baler and wrapper into a single unit 35 results in significant time savings in the work process. The baling of the feed material into a round bale and the wrapping of the bale are carried out on the same implement, which eliminates the need for 87970 time-consuming changes of the implement behind the tractor after one working step. Bale wrapping can be performed immediately after packing. Transporting the bales to the storage location can be done later. The placement of the rollers 5 acting as baling members in the longitudinal direction of the round baler simplifies the transmission, whereby the baler according to the invention is more advantageous to manufacture.

In the following, the invention will be described in more detail with reference to the accompanying drawings, in which

Figure 1 shows a round baler according to the invention in the baling position from the side. Figure 2 shows a round baler according to the invention in the wrapping position from the side.

Fig. 3 shows the round baler cut along the line III-III in Fig. 20

Figure 4 shows a detail of a device according to the invention.

25

Figure 1 shows the round baler in the baling position. The preferred embodiment of the round bale according to the figure is intended for connection to a tractor. It has a frame 16 and wheels 17. A baling chamber 18 is arranged on the frame 16. The Paa-30 stacking chamber consists of side and end walls (not shown in the figures). The baling chamber is filled with feed material such as hay, straw or the like through the feed opening 15 (in Fig. 3), for example with a mowing shredder. In the baling chamber 18 there are baling means 1, 2 for forming a bale. The members 1, 2 35 are preferably located on or near the inner walls of the baling chamber. In a preferred embodiment, the members are rollers 1, 2. The rollers 1, 2 are arranged in the support frame of the baking chamber so as to form a circumference which is preferably open at the top. The rollers 1, 2 are preferably arranged in the baling chamber 18 substantially longitudinally of the baler. The rollers 1, 2 can be rotated by means of a force transmission, for example a chain drive 6, 7, with the aid of, for example, the mechanical power take-off of the tractor. The rollers 1, 2 rotate about their longitudinal axis and, as they rotate, form a round bale of the feed material fed into the baling chamber. When the bale has reached a sufficient size 10 (the baling chamber is full), the rotational movement of the rollers 1, 2 is switched off.

Two or more rollers 2, preferably located at the bottom of the baling chamber 15, are pushed out as a group out of the baling chamber 15, whereby they are disengaged from the transmission 6 rotating all the rollers 6. Supported by the rollers, the round bale also moves out of the baling chamber 18. the rollers 2 are arranged on a movable base 8, which is moved, for example, by means of a pressure cylinder.

Figure 2 shows a round baler according to the invention in the bale wrapping position. In this case, the base 8 is pushed out 25, for example by means of pressure cylinders (not shown in the figure). This position has been reached, for example, by the following arrangement. When the pressure cylinder starts to push the base 8 outwards, the groove shaft 5 comes out of the sleeve 4, whereby the rollers 2 arranged in the base 8 are released from the connection of the other rollers 1 and the transmission 6 and protrude out of the base chamber 18 with the base 8.

The bale moves with the rollers 2 to the wrapping position. In this position, the bale may be rotated on the rolls 2 and a substantially horizontal to a substantially vertical axis 35 around. The wrapping itself takes place in a manner known from conventional round bale wrapping machines. The wrapping material supply devices 14 known per se are arranged 87970 4 in the vicinity of the baling chamber 18 so that the wrapping material can be rotated around the bale when it is located in the extended position on the base formed by the baling members 2 (Fig. 2).

In the wrapping position, the transmission is preferably arranged, for example, in the manner shown in Fig. 4. In it, the friction wheel 10 of the hydraulic motor 9 is pressed against the upper part of the ball ring 11 and the roller 2 starts to rotate about the vertical axis 3. At the same time, the rollers 2 of the roller 10 start to rotate, by means of the bevel gear 12, 13 and the chain transmission 7, about their own axes. In this case, the round bale on the roller 2 rotates around both the vertical axis and the horizontal axis. The packaging film unloaded from the roll 14 then wraps around the round bale. The wrapping-15 event is a technique known per se. The pre-wrapped bale is removed either by tilting the roller 2 with ball frames or with a separate arm, which is preferably hydraulically operated.

It will be apparent to those skilled in the art that the invention is not limited to the exemplary embodiments set forth above, but may be varied within the scope of the appended claims.

Claims (8)

A round baler comprising a baling chamber (18) to which the feed materials to be baled are fed through the feed opening (15) into the chamber, and into the inner walls of the baling chamber or adjacent baling means (1, 2) to make a round bale of the feedstock, characterized in that the baling means (2) are on the bottom of the baling chamber. (18) Arranged on a movable support (8) or correspondingly so that the balancing means (2) can be removed from the baling chamber (18) and used as a support at the baling packing stage. 2. A round baler according to claim 1, characterized in that the balancing means (1, 2) are rotatable rollers arranged to rotate about their own longitudinal axis. 3. A round baler according to claim 1, characterized in that the baling means (2) can be removed from the longitudinal direction of the baling chamber (18). An apparatus according to claim 1, characterized in that the balancing means (1, 2) are arranged in the baling chamber (18) substantially in the longitudinal direction of the baler. 25 5. A round baler according to claim 1, characterized in that the lower balancing means (2) are arranged on the support (8) in a group reversibly about the vertical axis. 6. A round baler according to claim 1, characterized in that a rotating machine (7, 9, 11, 12, 13) has been arranged in the movable support (8) for rotating the balancing means (2). .35 7. A round baler according to claim 1, characterized in that the packing material (14) known per se (14) is arranged in the vicinity of the baling chamber (18) so that the packing material can be wound around the bale in which it is in extended position at that of the baling means. (2) formed the substrate (Figure 2). 5 8. A round baler according to claim 6, characterized in that the rotary machinery consists of a motor (9), whose friction wheels (10) arranged on the shaft have been arranged to rotate the peripheral wheel (11), the rotational movement of which group consists of balancing means (2). to rotate about the vertical axis, where the rotational movement of the peripheral wheel is mediated via an angular gear (12, 13) to the power transmission means (7) which causes the stem to rotate which occurs around the longitudinal axis of the balancing means. 15