EP3788192B1 - Bale opener having an improved rail for guiding a machine frame - Google Patents

Bale opener having an improved rail for guiding a machine frame Download PDF

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Publication number
EP3788192B1
EP3788192B1 EP19708022.9A EP19708022A EP3788192B1 EP 3788192 B1 EP3788192 B1 EP 3788192B1 EP 19708022 A EP19708022 A EP 19708022A EP 3788192 B1 EP3788192 B1 EP 3788192B1
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EP
European Patent Office
Prior art keywords
running rail
bale opener
rollers
running
accordance
Prior art date
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Active
Application number
EP19708022.9A
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German (de)
French (fr)
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EP3788192A1 (en
Inventor
Johannes Bossmann
Patrick LIERSCH
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Truetzschler Group SE
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Truetzschler Group SE
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Publication of EP3788192A1 publication Critical patent/EP3788192A1/en
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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01GPRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G7/00Breaking or opening fibre bales
    • D01G7/04Breaking or opening fibre bales by means of toothed members
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01GPRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G7/00Breaking or opening fibre bales
    • D01G7/06Details of apparatus or machines
    • D01G7/12Framework; Casings; Coverings; Grids

Definitions

  • the invention relates to a bale opener for opening pressed fiber bales set up in an installation direction, with a machine frame and with a doffer unit, the doffer unit being arranged on the machine frame in a height-adjustable manner and the machine frame being movable in the erection direction, so that the fiber bales can be driven over with the doffer unit and fiber material is removable from the fiber bales and wherein the machine frame has a portal design and is guided on a floor-mounted running rail arrangement comprising a running rail.
  • the DE 36 37 578 A1 discloses a bale opener for opening pressed fiber bales set up in an installation direction, and the bale opener has a machine frame on which a doffing unit is arranged in a height-adjustable manner.
  • the machine frame can be moved in the direction of installation of the fiber bales, so that the fiber bales can be driven over with the removal unit and fiber material can be removed from the fiber bales.
  • the take-off unit has a take-off roller, which is set in rotation and thereby removes fiber flakes from the fiber bales, after which the fiber flakes are transported away via a suction device.
  • the bale opener To guide the machine frame in the direction of installation, the bale opener has two running rails that run parallel and are mounted on a floor or are elaborately embedded in it, on which the machine frame is guided and can move in the direction of installation. There are these under each of the side panels Rotatably mounted rollers that roll on the respective running rails and are also driven to generate the movement.
  • the side parts To ensure stable guidance of the machine frame, the side parts must be designed with a large width in the installation direction in order to achieve the largest possible distance between the rollers in the installation direction, since only then can the machine frame be guided on the running rails in a laterally stable manner.
  • the running rails have a profile with a base section and a vertical section, the base section being mountable on a floor and the vertical section pointing vertically upwards so that the rollers can be accommodated on the vertical section.
  • the rollers can also take on a lateral guidance function, which enables the machine frame to be guided safely in the direction of installation.
  • the US 4,507,826 A discloses a bale opener which has a further embodiment of a machine frame which is guided with corresponding rollers on also profiled running rails.
  • the profiled running rails have a central guide section with which the machine frame experiences lateral stability.
  • the disadvantage here is the production of the profiled running rails with an accuracy that is sufficient to achieve a correspondingly precise guidance of the machine frame in the installation direction and the rail head must be machined separately for lateral guidance.
  • respective running rails are required under both side cheeks of the machine frame, since a mechanically resilient side guide of the machine frame with a running rail under only one side cheek is not possible.
  • bale opener for opening pressed fiber bales set up in one direction has become known, with a Machine frame and with a doffer unit, wherein the doffer unit is arranged in a height-adjustable manner on the machine frame and wherein the machine frame can be moved in the installation direction, so that the fiber bales can be driven over with the doffer unit.
  • the bale opener has rails mounted on a floor and spaced apart from one another, on which the machine frame can move in the installation direction, with both side cheeks being guided on rails.
  • the DE 39 03 239 C1 discloses a bale opener for opening pressed fiber bales set up in an installation direction, with a tower that can be moved on a slide and a take-off unit as a cantilevered arm, the take-off unit being arranged in a height-adjustable manner on the machine frame and the machine frame being movable in the setting up direction, so that the Fiber bales can be driven over with the pickup unit.
  • the bale opener has rails mounted on a floor and spaced apart from one another, on which the movable tower can move in the installation direction.
  • the object of the invention is to improve the guidance of the movement of the machine frame of a bale opener in the installation direction.
  • the running rail should be as easy to manufacture as possible and enable both height guidance and lateral guidance.
  • the invention includes the technical teaching that the running rail can be formed from a round steel body with a substantially circular rail cross section, the running surface according to the invention being along the longitudinal extent As seen from the running rail, its cross section is curved in the direction of the rollers, and each roller, viewed transversely to its axis of rotation, has a running surface which has a smaller curvature than the running surface of the running rail.
  • the core idea of the invention is a bale opener for opening pressed fiber bales set up in one direction.
  • the bale opener is provided in a known manner with a take-off unit which is arranged in a height-adjustable manner on a machine frame of the bale opener.
  • a machine frame is provided which can be moved in the installation direction, so that the fiber bales can be driven over with the removal unit and fiber material can be removed from the fiber bales.
  • the bale opener has a portal design and is guided by means of rollers on a running surface of a running rail of a floor-mounted running rail arrangement facing the rollers.
  • the running surface viewed along the longitudinal extent of the running rail, is curved in the direction of rollers.
  • the roller viewed transversely to its axis of rotation, has a running surface which has a smaller curvature than the running surface of the running rail. This enables the aforementioned tilting, combined with a continued optimal contact surface to the running rail. This creates a low-friction, preferably linear contact between the respective roller and the running rail.
  • the curvature of the tread preferably corresponds to a partial circumference of an ellipse or a circle. This is a particularly suitable shape because it allows the bale opener guided on it to be tilted about an axis along the travel path or the longitudinal extent of the running rail. This means that the other side or half of the portal does not also have to be guided on a running rail.
  • Each of the bale openers mentioned can have guide rollers.
  • the guide rollers are arranged to roll on two opposite outer surfaces of the running rail, which adjoin the running surface on both sides, the axes of rotation of which run parallel to one another and perpendicular to the axes of rotation of the running rollers. This at least prevents the rollers from slipping too far along the running rail in the direction of their axes of rotation. This increases operational safety.
  • the machine frame of the aforementioned bale opener can have a first side cheek and an opposite second side cheek.
  • the first side wall has the aforementioned rollers and is therefore guided on the running rail.
  • the second side cheek can be guided so that it stands on a floor on which the running rail arrangement is also arranged.
  • the fiber bale display can be set up from one long side of the bale opener, which greatly simplifies the handling of the bale opener.
  • the running rail preferably has a circular cross section and can therefore be formed from a round steel body, which is easy to manufacture and inexpensive.
  • the running rail is suitable for interacting with corresponding running rollers in order to enable both horizontal guidance of the machine frame and to create lateral guidance, since roller contact can be possible both on the top of the round steel body and in the side areas of the running rail.
  • the running rail according to the invention does not have to be designed with a special profile, which requires an adapted rolling process, which causes significantly higher costs.
  • Round steel bodies are easily available and can be used without considering a rotational position and for an appropriate length design
  • a required number of round steel bodies, each with discrete lengths, can be arranged one after the other, which form the running rail of the running rail arrangement.
  • the running rail arrangement includes further means for fastening the running rail to a floor, and means are also provided for connecting the running rail to one another at the front.
  • the result is a simple design of a running rail arrangement that can be flexibly mounted on a floor in an equally simple manner in order to provide secure guidance of a machine frame for a bale opener.
  • the machine frame can be designed in a portal design, and only one side cheek of the machine frame is guided over a running rail arrangement, while another, opposite side cheek can be guided on the floor itself without a running rail.
  • the lateral guidance of the machine frame can be ensured with appropriate roller arrangements so that the running rail in the form of round steel bodies allows sufficient lateral guidance of the machine frame.
  • the design of the running rail according to the invention achieves the advantage that the fiber bales can be transported into the installation area in a simplified manner by eliminating a second running rail, and the installation area is freely accessible for setting up the fiber bales from the side opposite the running rail.
  • a portal design of the machine frame it can be achieved that the bale opener only requires a single running rail to guide the machine frame, while the second side cheek is easily guided over the ground and therefore only in the height direction.
  • the area of the bale opener opposite the running rail can thus be designed with a continuous, uninterrupted floor, so that the fiber bales can not only be set up through an installation aisle, but the fiber bales can also be delivered to the bale opener from the side in the installation direction.
  • bale opener in particular the guidance of the suction air, can be arranged on the side of the first side cheek, for example parallel behind the running rail arrangement, so that the installation area for setting up the fiber bales can sufficiently have, for example, only one boundary marking, without the need for other floor structures .
  • the running rail arrangement has a plurality of foot elements which are designed to accommodate the running rail and which can be arranged on a floor.
  • the floor is advantageously the floor on which the rollers of the second side cheek also roll, and the floor also coincides with the floor on which the fiber bales can also be placed in the installation area.
  • Fastening the running rail from the running rail body to the floor by means of foot elements is possible in a simple manner, and the foot elements can be arranged at discrete intervals, so that the running rail body extends freely between the foot elements to be arranged at a distance to form the running rail.
  • the bending strength of the running rail body is designed to be sufficient so that there are no disadvantages with regard to the guidance of the machine frame.
  • foot elements can be mounted on the floor at discrete distances from one another in order to accommodate several segments of the running rail.
  • the distances between the foot elements can be, for example, 500 mm to 800 mm.
  • the foot elements can in particular be designed as cast feet, whereby the cast bodies can be machined, in particular for the functional surfaces.
  • screw elements can be provided which are passed through through holes in the foot elements and which are screwed into threaded holes in the running rail.
  • the screw elements can thus be screwed radially into the running rail body, so that the foot element on the underside of the running rail body is firmly connected to it.
  • the foot element can then be anchored to the floor, for which purpose it can be provided with screw elements which are passed through through holes in the foot elements and which can be screwed into the floor.
  • the running rail can be formed from several segments, which form respective running rail bodies, whereby the segments can be connected to one another at the front using cylindrical pins. This results in a continuous structure of the running rail, which can also have considerable lengths, depending on how elongated the installation area is designed for setting up the fiber bales.
  • the running rail body for forming the running rail can be made, for example, from a structural steel, preferably from a St60 steel material. In the case of a round steel body, this can have a diameter of 40 mm to 100 mm, preferably 50 mm to 80 mm, and particularly preferably 60 mm. It has been shown that a running rail with a round cross-section of 60 mm in diameter is sufficiently rigid to ensure safe guidance of the machine frame without unnecessarily increasing the design effort for forming the running rail arrangement.
  • the roller grip through the rollers, with which the machine frame can be guided accordingly, can also provide a sufficient guiding function if the round steel body has a diameter of approximately 60 mm. In particular, the diameter can be provided with a value of 55 mm to 65 mm.
  • a further advantage is achieved if the foot elements have two receiving surfaces aligned approximately in a V-shape, the running rail body to form the running rail has a line contact with the receiving surfaces and in particular only comes into contact with the receiving surfaces, so that a technically defined contact is formed.
  • Compensating plates can be arranged on the underside of the foot elements to compensate for unevenness in the floor.
  • the running rail is measured during assembly, and a corresponding number of compensating plates can be arranged under each of the foot elements in order to achieve a desired, preferably straight course of the running rail after the foot elements have been fastened to the floor.
  • Compensating plates of different thicknesses can be provided to enable fine adjustment of the alignment of the running rail.
  • the running rail arrangement can have cover elements which are arranged on the foot elements and which cover at least the underside and/or a laterally lower region of the running rail. This prevents the accumulation of contaminants, especially the accumulation of fiber material, next to and under the running rail, and cleaning the area under and next to the running rail arrangement is made easier by the cover elements.
  • the round cross section of the running rail can protrude approximately two-thirds or three-quarters from the upper cover surface of the cover elements, so that sufficient space is formed in which the rollers of the machine frame can be arranged on the running rail for top guidance and even for lateral guidance.
  • the running rail is preferably formed from several segments which are connected to one another by means of pins. This means that a long and therefore unstable and difficult to transport running rail profile must be produced. This also enables variable-length ordering and installation of the running rail depending on the installation location.
  • rollers mentioned are preferably made of plastic, at least in the area of the running surface. This is a particularly low-wear material that can also be made to have low friction.
  • the Figures 1 and 2 show a bale opener 1 with the features of the present invention in two different perspective views.
  • the bale opener 1 is used for milling off the top of fiber bales 100, which are set up in a set-up area 28 on a floor 17 in several rows next to each other in a set-up direction 10.
  • a removal unit 12 which is mounted on a machine frame 11 in a height direction, is used to mill off the top side of the fiber bale 100.
  • the machine frame 11 has a first side cheek 15 and a second side cheek 16, and two portal profiles 48 arranged at a distance from one another extend between the two side cheeks 15 and 16.
  • the side cheeks 15 and 16 have rollers 53 and 54, and a running rail arrangement 13 with a single running rail 14 is used to guide the machine frame 11 in the installation direction 10, on which the rollers 53 are guided on the first side cheek 15.
  • the rollers 54 which are located on the underside of the second side cheek 16, run on the floor 17, on which the fiber bales 100 are also set up, and on which the running rail arrangement 13 with the running rail 14 is mounted.
  • the doffer unit 12 has two doffer rollers 31 and three support rollers 32 on one underside, the doffer rollers 31 being located between the support rollers 32 and all of the rollers 31, 32 running parallel to one another in the transverse direction 49. There are gratings 33 in front of the take-off rollers 31. If the rollers 31, 32 are set in rotation, the take-off rollers 31 pick up flake-like components from the pressed fiber balls 100, and the fiber flakes are sucked off via the suction device 46 and fed for further use.
  • the suction device 46 comprises a suction hood 34, which is located on the top side of the pickup unit 12 and to which a spiral hose 35 leading vertically upwards is connected.
  • a suction air duct 36 which introduces the suction air into the first side cheek 15 on the top side.
  • the suction air shaft 36 is self-supporting and connected to the top of the first side cheek 15, and the spiral hose 35 is in a hanging arrangement at the end of the suction air shaft 36.
  • the suction air travels through the first side cheek 15 and arrives via a channel 47 together with the fiber flakes a further processing station.
  • the bale opener 1 is controlled manually via a control panel 37, which is set up, for example, on a head side of the channel 47.
  • the bale opener 1 is supplied with electricity via a connection box 38, which is located at the same head end of the channel 47.
  • An electrical supply and a signal connection to the movable machine frame 11 can be established via a power and signal connection 29, comprising a cable chain unit 30, the power and signal connection 29 being located on the side of the channel 47 and being connected to the connection box 38.
  • a driver 39 forms the movable connection of the channel chain unit 30 and is connected to a belt lifting unit 40, which is connected to the first side cheek 15 and is consequently moved with the movement of the machine frame 11 in the installation direction 10.
  • the band lifting unit 40 is used to lift a cover band 45, which covers the channel 47 on the top side.
  • Figure 3 shows a perspective view of the running rail arrangement 13 with a running rail 14, which can be screwed to a plurality of foot elements 18 shown by means of screw elements 22 on a floor, not shown here.
  • the undersides of the foot elements 18 rest on the floor, while the running rail 14 is in a floating arrangement between the foot elements 18 extends.
  • the running rail 14 has an end stop 57, which prevents the machine frame 11 with the running rollers 53 from coming down from the running rail 14.
  • Cover elements 27 are also arranged on the foot elements 18, with which the area under the running rail 14 is covered. The cover elements 27 are screwed laterally to the foot elements 18.
  • Figure 4 shows a flying view of two segments 14a and 14b of the running rail 14, which can be connected at the front with a cylinder pin 24.
  • a cylinder pin 24 For this purpose, there are receiving holes 59 in the end faces 60 of the segments 14a and 14b, into which the cylinder pin 24 can be inserted, for example, at half its length.
  • a foot element 18 is shown arranged on the underside under the running rail 14, the connection between the segments 14a and 14b being provided for the continuous design of the running rail 14 over the area of the foot elements 18, so that both interconnected segments 14a and 14b each have their ends on the foot elements 18 can lie on.
  • the illustration further shows the cover elements 27 arranged on the underside of the segment 14a and in attachment to the foot element 18. Another cover element 27 is arranged below the segment 14b, which can also be arranged on the foot element 18.
  • Figure 5 shows a side view of the running rail 14 in the area in which two segments 14a and 14b of the running rail 14 are connected to one another at the front by means of the cylindrical pin 24, with the cylindrical pin 24 being inserted approximately half its length into receiving holes 59 in the end faces 60 of the segments 14a and 14b is inserted precisely.
  • a screw element 19, which is passed through a through hole 20 in the foot element 18, is screwed into a threaded hole 21 in the running rail 14.
  • the threaded hole runs transversely to the longitudinal direction of the running rail 14 in the radial direction into it.
  • the foot element 18 is thus attached to the underside of the running rail 14.
  • the cover element 27 is attached to the foot element 18 on the side.
  • the foot element 18 is screwed into the floor 17 by means of further screw elements 22, for which the screw elements 22 also include dowel elements 58.
  • the screw elements 22 also include dowel elements 58.
  • two compensating plates 26 are arranged between the top of the floor 17 and the underside of the foot element 18, whereby a height adjustment of the foot element 18 above the floor 17 can be achieved, in particular in order to ensure a straight alignment of the running rail 14 while still maintaining a fixed arrangement on the floor 17 to reach.
  • the plates 26 can also have different height or thickness dimensions from one another.
  • Figure 6 finally shows a perspective view of the foot element 18 with two receiving surfaces 25, which are approximately V-shaped to one another. If the running rail 14 is inserted into the foot element 18 on the top side, line contacts result between the receiving surfaces 25 and the running rail 14, which is round here. Between the two receiving surfaces 25 there is the through hole 20 for the passage of the screw element 19 and on the outside there are through holes 23 for the passage the screw elements 22.
  • Fig. 7a shows the bale opener 1 in relation to the guidance of the side cheek 15 on the running rail 14 in a view from below.
  • the rollers 53, 53 protrude slightly from the side cheek 15 in the direction of the running rail 14 through unmarked openings pointing in the side wall 15 in the direction of the running rail 14 and are arranged to roll on the same running rail 14.
  • Each roller 53 is accommodated in a stationary and freely rotatable manner in the side cheek 15 by means of an associated axis 63.
  • four guide rollers 62 are provided here as an example.
  • Two guide rollers 62, 62 are preferably attached to a holder 67 in a freely rotatable manner, which are attached, for example, to one of the two travel-oriented surfaces or sides of the side cheek 15.
  • the axes of rotation of the guide rollers 62 run parallel to each other and essentially transverse to the axes of rotation of the rollers 53, 53 and transverse to the (guide) surface of the running rail 14 pointing in the direction of the side cheek 15.
  • the pickup unit 12 with support rollers 32 and two foot elements 18, 18 each with compensating elements 26 can be seen.
  • Fig. 7b shows the side cheek 15 in a cutout and with a travel-oriented, open front side.
  • the roller 53 has, for example, a running surface 68 which is curved and concave in cross section.
  • the degree of curvature of the running surface 68 is less than a wheel of curvature of the running rail 14 in the area facing the side cheek 15 on which the rollers 53 roll. This creates a low-friction, preferably line-like contact between the respective roller 53 and the running rail 14.
  • a drive section 66 is accommodated in a space between the side cheek 15. This is used to connect a drive motor to drive this roller 53 and thus to move the side cheek 15 on the running rail 14.
  • a drive motor to drive this roller 53 and thus to move the side cheek 15 on the running rail 14.
  • the drive section 66 may have other shapes. For example, it can be formed by a gear wheel with which another gear wheel meshes.
  • the roller 53 and the drive section 66 can be formed in one piece or, as shown here, can be arranged in a rotationally fixed manner with respect to one another by means of a connecting section 70.
  • At least the roller 53 is freely rotatable via bearings 69 on the associated axis 63, which in turn is attached to the side cheek 15 on the inside is.
  • the drive section 66 can also be arranged on the bearing 69 on the left here.
  • the axis 63 is arranged in the side cheek 15 so that it can rotate freely via the bearings 69. i.e. Drive section 66 and roller 53 can be arranged on the axis 63 in a rotationally fixed manner. This enables a module that only needs to be inserted into the side cheek 15 via the bearings 69, 69.
  • FIG 8 shows one of the guide rollers 62 in greater detail.
  • the guide roller 62 has a running surface section 65, by means of whose circumferential, unmarked running surface the guide roller 62 rolls along the running rail 14 in a guided manner.
  • the guide roller 62 includes an axle 64, which is arranged to be freely rotatable to the tread section 65 via a bearing 71.
  • the axis 64 has a fastening opening 61 on the inside, for example in the form of a threaded hole that is preferably only open on one side.
  • a fastening element, not shown, is preferably screwed into the fastening opening 61 from a side of the holder 67 facing away from the respective guide roller 62.
  • the central axis of the fastening opening 61 which is preferably circular in cross section, does not run on the axis of rotation of the tread section 65. This makes it possible to change the distance of the roller section 65 from the running rail 14 by rotating the roller 62 about the central axis. This is a very simple method of being able to adjust the guide rollers 62 on site.
  • Fig. 9 shows the side cheek 15 guided on the running rail 14 in two positions. The second position is shown by dashed lines, and the associated reference numbers are each provided with an apostrophe for better distinction.
  • the running rail 14 preferably has a circular cross section. Since the axes of rotation of the rollers 53 and the guide rollers 62, 62 are essentially transverse run to each other and the concave running surface of the roller 53 corresponds, for example, to a partial circumference line of a circle which has an equal or larger diameter than the running rail 14 in cross section, the side cheek 15 can tilt on the running rail 14.
  • the axis around which the tilting takes place corresponds to in Fig. 9 a line that runs perpendicular to the image plane and includes the center of the circle of the running rail cross section.
  • the side cheek 15 'with the rollers 53' 64' and the axes 63', 64' is tilted slightly to the left here in relation to the first position shown with solid lines. Due to the circular shape of the cross section of the running rail 14, all guide rollers 62 'still lie on the running rail 14. Due to the concavity of the running surface of the roller 53 ', it also continues to be in contact with the running rail 14. The tilting makes it possible to compensate for uneven floors along which the side cheek 16, not shown here, can be guided. This increases the operational safety and flexibility of use of the bale opener 1.
  • Figure 10 shows the side cheek 15 guided on the running rail 14 in two, now different positions. Analogous to Figure 9 the second position is shown by dashed lines and the associated reference numbers are each provided with an apostrophe for better differentiation
  • the bale opener 1 has, for example, only three guide rollers 62, 62', although any other, larger number of guide rollers is possible. At least two guide rollers 62, 62' (arranged here on the left) are arranged on one and the same side of the running rail 14, and the third guide roller 62 is arranged on the opposite side of the running rail 14.
  • a straight line that touches both left guide rollers 62, 62 tangentially on the outside on their sides facing the running rail 14, and a straight line that touches the right one Guide roller 62 touches tangentially on the outside on its side facing the running rail 14, run parallel to one another. Both straight lines are at a distance from one another that is greater than the outer dimension of the running rail 14, viewed along the axes of rotation of the guide rollers 62. i.e. One of the guide rollers 62, 62' (the lower, left guide roller 62 or the upper left guide roller 62') has no contact with the running rail 14. This is due to the fact that the side cheek 16 does not have to be driven.
  • the number of running and guide rollers 53; 62, 62' and the shape of their treads 68 can vary.
  • the running rail 14 does not have to be circular in cross section.
  • the running rail 14 can only be in contact areas with the rollers 53; 62, 62 be convexly curved in cross section at least in sections.
  • an outer circumferential line in cross section follows a circumferential line of an ellipse, preferably a circle.
  • the pins 24 can be provided with a screw thread so that the running rail segments 14a, 14b to be fastened to one another are screwed together.
  • the pins have a non-circular cross section. This allows the segments 14a, 14b to be attached to one another and aligned with one another in a rotation-proof manner without the need for special steps.
  • several pins 24 can also be provided, with the same advantages.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Description

Die Erfindung betrifft einen Ballenöffner zum Öffnen von gepressten und in einer Aufstellrichtung aufgestellten Faserballen, mit einem Maschinengestell und mit einer Abnehmereinheit, wobei die Abnehmereinheit höhenveränderbar am Maschinengestell angeordnet ist und wobei das Maschinengestell in der Aufstellrichtung verfahrbar ist, sodass die Faserballen mit der Abnehmereinheit überfahrbar sind und Fasermaterial von den Faserballen abnehmbar ist und wobei das Maschinengestell eine Portalbauweise aufweist und auf einer bodenmontierten Laufschienenanordnung umfassend eine Laufschiene geführt ist.The invention relates to a bale opener for opening pressed fiber bales set up in an installation direction, with a machine frame and with a doffer unit, the doffer unit being arranged on the machine frame in a height-adjustable manner and the machine frame being movable in the erection direction, so that the fiber bales can be driven over with the doffer unit and fiber material is removable from the fiber bales and wherein the machine frame has a portal design and is guided on a floor-mounted running rail arrangement comprising a running rail.

Die DE 36 37 578 A1 offenbart einen Ballenöffner zum Öffnen von gepressten und in einer Aufstellrichtung aufgestellten Faserballen, und der Ballenöffner weist ein Maschinengestell auf, an dem eine Abnehmereinheit höhenveränderbar angeordnet ist. Das Maschinengestell ist in der Aufstellrichtung der Faserballen verfahrbar, sodass die Faserballen mit der Abnehmereinheit überfahrbar sind und Fasermaterial von den Faserballen abgenommen werden kann. Hierzu weist die Abnehmereinheit eine Abnehmerwalze auf, die in Rotation versetzt wird und dabei Faserflocken aus den Faserballen entnimmt, wonach die Faserflocken über eine Absaugeinrichtung abtransportiert werden.The DE 36 37 578 A1 discloses a bale opener for opening pressed fiber bales set up in an installation direction, and the bale opener has a machine frame on which a doffing unit is arranged in a height-adjustable manner. The machine frame can be moved in the direction of installation of the fiber bales, so that the fiber bales can be driven over with the removal unit and fiber material can be removed from the fiber bales. For this purpose, the take-off unit has a take-off roller, which is set in rotation and thereby removes fiber flakes from the fiber bales, after which the fiber flakes are transported away via a suction device.

Der Ballenöffner weist zur Führung des Maschinengestells in der Aufstellrichtung zwei parallel verlaufende und auf einem Boden montierte oder in diesen aufwändig eingelassene Laufschienen auf, auf denen das Maschinengestell in Aufstellrichtung geführt ist und verfahren kann. Unter jedem der Seitenteile befinden sich hierfür drehbar aufgenommene Rollen, die auf den jeweiligen Laufschienen abrollen und für die Erzeugung der Verfahrbewegung auch jeweils angetrieben sind. Die Seitenteile müssen für eine stabile Führung des Maschinengestells mit einer großen Breite in Aufstellrichtung ausgeführt werden, um einen möglichst großen Abstand der Rollen in Aufstellrichtung zu erreichen, da nur dann das Maschinengestell seitenstabil auf den Laufschienen geführt werden kann.To guide the machine frame in the direction of installation, the bale opener has two running rails that run parallel and are mounted on a floor or are elaborately embedded in it, on which the machine frame is guided and can move in the direction of installation. There are these under each of the side panels Rotatably mounted rollers that roll on the respective running rails and are also driven to generate the movement. To ensure stable guidance of the machine frame, the side parts must be designed with a large width in the installation direction in order to achieve the largest possible distance between the rollers in the installation direction, since only then can the machine frame be guided on the running rails in a laterally stable manner.

Eine weitere Ausführung einer Laufschienenführung eines Maschinengestelles eines Ballenöffners offenbart die DE 37 34 480 A1 . Die Laufschienen weisen ein Profil mit einem Grundabschnitt und mit einem Vertikalabschnitt auf, wobei der Grundabschnitt auf einem Boden aufstehend montierbar ist und wobei der Vertikalabschnitt senkrecht nach oben weist, sodass die Rollen an dem Vertikalabschnitt aufgenommen werden können. Dabei können die Rollen auch eine Seitenführungsfunktion übernehmen, die eine sichere Führung des Maschinengestells in Aufstellrichtung ermöglicht.Another version of a running rail guide of a machine frame of a bale opener is disclosed DE 37 34 480 A1 . The running rails have a profile with a base section and a vertical section, the base section being mountable on a floor and the vertical section pointing vertically upwards so that the rollers can be accommodated on the vertical section. The rollers can also take on a lateral guidance function, which enables the machine frame to be guided safely in the direction of installation.

Die US 4,507,826 A offenbart einen Ballenöffner, der eine weitere Ausführungsform eines Maschinengestells aufweist, das mit entsprechenden Rollen auf ebenfalls profilierten Laufschienen geführt ist. Die profilierten Laufschienen weisen dabei einen mittleren Führungsabschnitt auf, mit dem das Maschinengestell eine Seitenstabilität erfährt. Nachteilhaft ist dabei die Herstellung der profilierten Laufschienen mit einer Genauigkeit, die hinreichend ist, um eine entsprechend genaue Führung des Maschinengestells in der Aufstellrichtung zu erreichen und der Schienenkopf muss für eine Seitenführung gesondert bearbeitet werden. Zudem sind konstruktionsbedingt unter beiden Seitenwangen des Maschinengestells jeweilige Laufschienen erforderlich, da eine mechanisch belastbare Seitenführung des Maschinengestells mit einer Laufschiene unter nur einer Seitenwange nicht möglich ist.The US 4,507,826 A discloses a bale opener which has a further embodiment of a machine frame which is guided with corresponding rollers on also profiled running rails. The profiled running rails have a central guide section with which the machine frame experiences lateral stability. The disadvantage here is the production of the profiled running rails with an accuracy that is sufficient to achieve a correspondingly precise guidance of the machine frame in the installation direction and the rail head must be machined separately for lateral guidance. In addition, due to the design, respective running rails are required under both side cheeks of the machine frame, since a mechanically resilient side guide of the machine frame with a running rail under only one side cheek is not possible.

Aus der US 4 109 875 A ist ein weiterer Ballenöffner zum Öffnen von gepressten und in einer Aufstellrichtung aufgestellten Faserballen bekannt geworden, mit einem Maschinengestell und mit einer Abnehmereinheit, wobei die Abnehmereinheit höhenveränderbar am Maschinengestell angeordnet ist und wobei das Maschinengestell in der Aufstellrichtung verfahrbar ist, sodass die Faserballen mit der Abnehmereinheit überfahrbar sind. Der Ballenöffner weist zur Führung auf einem Boden montierte und beabstandet zueinander verlaufende Schienen auf, auf denen das Maschinengestell in Aufstellrichtung verfahren kann, wobei beide Seitenwangen auf Schienen geführt sind.From the US 4,109,875 A Another bale opener for opening pressed fiber bales set up in one direction has become known, with a Machine frame and with a doffer unit, wherein the doffer unit is arranged in a height-adjustable manner on the machine frame and wherein the machine frame can be moved in the installation direction, so that the fiber bales can be driven over with the doffer unit. For guidance, the bale opener has rails mounted on a floor and spaced apart from one another, on which the machine frame can move in the installation direction, with both side cheeks being guided on rails.

Die DE 39 03 239 C1 offenbart einen Ballenöffner zum Öffnen von gepressten und in einer Aufstellrichtung aufgestellten Faserballen bekannt geworden, mit einem auf einer Schiebe verfahrbaren Turm und einer Abnehmereinheit als auskragender Arm, wobei die Abnehmereinheit höhenveränderbar am Maschinengestell angeordnet ist und wobei das Maschinengestell in der Aufstellrichtung verfahrbar ist, sodass die Faserballen mit der Abnehmereinheit überfahrbar sind. Der Ballenöffner weist zur Führung auf einem Boden montierte und beabstandet zueinander verlaufende Schienen auf, auf denen der verfahrbare Turm in Aufstellrichtung verfahren kann.The DE 39 03 239 C1 discloses a bale opener for opening pressed fiber bales set up in an installation direction, with a tower that can be moved on a slide and a take-off unit as a cantilevered arm, the take-off unit being arranged in a height-adjustable manner on the machine frame and the machine frame being movable in the setting up direction, so that the Fiber bales can be driven over with the pickup unit. For guidance, the bale opener has rails mounted on a floor and spaced apart from one another, on which the movable tower can move in the installation direction.

Aufgabe der Erfindung ist die Verbesserung einer Führung der Bewegung des Maschinengestelles eines Ballenöffners in der Aufstellrichtung. Dabei soll die Laufschiene möglichst einfach herstellbar sein und sowohl eine Höhenführung als auch eine Seitenführung ermöglichen.The object of the invention is to improve the guidance of the movement of the machine frame of a bale opener in the installation direction. The running rail should be as easy to manufacture as possible and enable both height guidance and lateral guidance.

Diese Aufgabe wird ausgehend von einem Ballenöffner gemäß dem Oberbegriff des Anspruches 1 in Verbindung mit den kennzeichnenden Merkmalen gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen angegeben.This task is solved based on a bale opener according to the preamble of claim 1 in conjunction with the characterizing features. Advantageous developments of the invention are specified in the dependent claims.

Die Erfindung schließt die technische Lehre ein, dass die Laufschiene aus einem Rundstahlkörper mit einem im Wesentlichen kreisrunden Schienenquerschnitt ausgebildet sein kann, wobei erfindungsgemäß die Lauffläche, entlang der Längserstreckung der Laufschiene gesehen, in ihrem Querschnitt in Richtung Rollen gekrümmt ausgebildet ist, und wobei jede Laufrolle, quer zu ihrer Rotationsachse gesehen, eine Lauffläche aufweist, die eine geringere Krümmung aufweist als die Lauffläche der Laufschiene.The invention includes the technical teaching that the running rail can be formed from a round steel body with a substantially circular rail cross section, the running surface according to the invention being along the longitudinal extent As seen from the running rail, its cross section is curved in the direction of the rollers, and each roller, viewed transversely to its axis of rotation, has a running surface which has a smaller curvature than the running surface of the running rail.

Kerngedanke der Erfindung ist ein Ballenöffner zum Öffnen von gepressten und in einer Aufstellrichtung aufgestellten Faserballen. Der Ballenöffner ist in bekannter Weise mit einer Abnehmereinheit versehen, die höhenveränderbar an einem Maschinengestell des Ballenöffners angeordnet ist. Zudem ist ein Maschinengestell vorgesehen, das in der Aufstellrichtung verfahrbar ist, sodass die Faserballen mit der Abnehmereinheit überfahrbar sind und dabei Fasermaterial von den Faserballen abnehmbar ist. Der Ballenöffner weist eine Portalbauweise auf und ist mittels Laufrollen auf einer den Rollen zugewandten Lauffläche einer Laufschiene einer bodenmontierten Laufschienenanordnung geführt ist. Die Lauffläche ist, entlang der Längserstreckung der Laufschiene gesehen, in Richtung Rollen gekrümmt ausgebildet. Dies hat den Vorteil, eine definierte und geringe (und damit reibungsarme) Kontaktfläche mit den Laufrollen zu haben. Die Laufrolle weist quer zu ihrer Rotationsachse gesehen gemäß der Erfindung eine Lauffläche auf, die eine geringere Krümmung aufweist als die Lauffläche der Laufschiene. Dies ermöglicht das vorgenannte Verkippen, verbunden mit einer weiterhin optimalen Kontaktfläche zur Laufschiene. Dadurch wird ein reibungsarmer, vorzugsweise linienartiger Kontakt zwischen jeweiliger Laufrolle und Laufschiene realisiert.The core idea of the invention is a bale opener for opening pressed fiber bales set up in one direction. The bale opener is provided in a known manner with a take-off unit which is arranged in a height-adjustable manner on a machine frame of the bale opener. In addition, a machine frame is provided which can be moved in the installation direction, so that the fiber bales can be driven over with the removal unit and fiber material can be removed from the fiber bales. The bale opener has a portal design and is guided by means of rollers on a running surface of a running rail of a floor-mounted running rail arrangement facing the rollers. The running surface, viewed along the longitudinal extent of the running rail, is curved in the direction of rollers. This has the advantage of having a defined and small (and therefore low-friction) contact surface with the rollers. According to the invention, the roller, viewed transversely to its axis of rotation, has a running surface which has a smaller curvature than the running surface of the running rail. This enables the aforementioned tilting, combined with a continued optimal contact surface to the running rail. This creates a low-friction, preferably linear contact between the respective roller and the running rail.

Die Krümmung der Lauffläche entspricht vorzugsweise einer Teilumfangslinie einer Ellipse oder eines Kreises. Dies ist eine besonders gut geeignete Form, da sie ein Verkippen des darauf geführten Ballenöffners um eine Achse entlang des Verfahrwegs bzw. der Längserstreckung der Laufschiene ermöglicht. Dadurch muss die andere Seite bzw. Hälfte des Portals nicht auch auf einer Laufschiene geführt werden.The curvature of the tread preferably corresponds to a partial circumference of an ellipse or a circle. This is a particularly suitable shape because it allows the bale opener guided on it to be tilted about an axis along the travel path or the longitudinal extent of the running rail. This means that the other side or half of the portal does not also have to be guided on a running rail.

Jeder der genannten Ballenöffner kann Führungsrollen aufweisen. Die Führungsrollen sind an zwei einander gegenüberliegenden Außenflächen der Laufschiene abrollend angeordnet, die beidseitig an die Lauffläche angrenzen, deren Rotationsachsen parallel zueinander und senkrecht zu den Rotationsachsen der Laufrollen verlaufen. Dies verhindert zumindest ein zu weites Abrutschen der Laufrollen in entlang der Laufschiene in Richtung ihrer Rotationsachsen. Dies erhöht die Betriebssicherheit.Each of the bale openers mentioned can have guide rollers. The guide rollers are arranged to roll on two opposite outer surfaces of the running rail, which adjoin the running surface on both sides, the axes of rotation of which run parallel to one another and perpendicular to the axes of rotation of the running rollers. This at least prevents the rollers from slipping too far along the running rail in the direction of their axes of rotation. This increases operational safety.

Das Maschinengestell der vorgenannten Ballenöffner kann eine erste Seitenwange und eine gegenüberliegende zweite Seitenwange aufweisen. Die erste Seitenwange weist die besagten Laufrollen auf und ist damit auf der Laufschiene geführt. Die zweite Seitenwange ist erfindungsgemäß auf einem Boden aufstehend führbar, auf dem auch die Laufschienenanordnung angeordnet ist. Dies vereinfacht zum einen den Aufbau des Ballenöffners. Zum anderen kann dadurch die Faserballenschau von einer Längsseite des Ballenöffners her aufgestellt werden, was die Handhabung des Ballenöffners enorm vereinfacht.The machine frame of the aforementioned bale opener can have a first side cheek and an opposite second side cheek. The first side wall has the aforementioned rollers and is therefore guided on the running rail. According to the invention, the second side cheek can be guided so that it stands on a floor on which the running rail arrangement is also arranged. On the one hand, this simplifies the construction of the bale opener. On the other hand, the fiber bale display can be set up from one long side of the bale opener, which greatly simplifies the handling of the bale opener.

Die Laufschiene hat vorzugsweise einen kreisrunden Querschnitt, kann also aus einem Rundstahlkörper gebildet sein, der einfach herstellbar und preiswert verfügbar ist. Die Laufschiene ist dabei dazu geeignet, mit entsprechenden Laufrollen zusammenzuwirken, um sowohl eine horizontale Führung des Maschinengestells zu ermöglichen als auch eine Seitenführung zu schaffen, da ein Rollenkontakt sowohl auf der Oberseite des Rundstahlkörpers als auch in den seitlichen Bereichen der Laufschiene möglich sein können. Dabei muss die erfindungsgemäße Laufschiene insbesondere nicht mit einem speziellen Profil ausgebildet werden, was einen angepassten Walzprozess voraussetzt, was deutlich höhere Kosten verursacht. Rundstahlkörper sind auf einfache Weise erhältlich und können ohne Beachtung einer Rotationsposition eingesetzt werden, und für eine entsprechende Längenausbildung der Laufschiene kann eine erforderliche Anzahl von Rundstahlkörpern mit jeweils diskreten Längen aufeinander folgend angeordnet werden, die die Laufschiene der Laufschienenanordnung bilden.The running rail preferably has a circular cross section and can therefore be formed from a round steel body, which is easy to manufacture and inexpensive. The running rail is suitable for interacting with corresponding running rollers in order to enable both horizontal guidance of the machine frame and to create lateral guidance, since roller contact can be possible both on the top of the round steel body and in the side areas of the running rail. In particular, the running rail according to the invention does not have to be designed with a special profile, which requires an adapted rolling process, which causes significantly higher costs. Round steel bodies are easily available and can be used without considering a rotational position and for an appropriate length design On the running rail, a required number of round steel bodies, each with discrete lengths, can be arranged one after the other, which form the running rail of the running rail arrangement.

Die Laufschienenanordnung umfasst dabei neben der Laufschiene weitere Mittel, um die Laufschiene auf einem Boden zu befestigen, und es sind zudem Mittel vorgesehen, um die Laufschiene stirnseitig miteinander zu verbinden. Im Ergebnis ergibt sich eine einfache Ausgestaltung einer Laufschienenanordnung, die auf ebenso einfache Weise flexibel auf einem Boden montiert werden kann, um eine sichere Führung eines Maschinengestells für einen Ballenöffner zu schaffen. Das Maschinengestell kann dabei in Portalbauweise ausgebildet sein, und nur eine Seitenwange des Maschinengestells ist über eine Laufschienenanordnung geführt, während eine weitere, gegenüberliegende Seitenwange ohne eine Laufschiene auf dem Boden selbst geführt werden kann. Die Seitenführung des Maschinengestells kann dabei mit entsprechenden Rollenanordnungen so sichergestellt werden, dass die Laufschiene in Ausgestaltung von Rundstahlkörpern eine hinreichende Seitenführung des Maschinengestells erlaubt.In addition to the running rail, the running rail arrangement includes further means for fastening the running rail to a floor, and means are also provided for connecting the running rail to one another at the front. The result is a simple design of a running rail arrangement that can be flexibly mounted on a floor in an equally simple manner in order to provide secure guidance of a machine frame for a bale opener. The machine frame can be designed in a portal design, and only one side cheek of the machine frame is guided over a running rail arrangement, while another, opposite side cheek can be guided on the floor itself without a running rail. The lateral guidance of the machine frame can be ensured with appropriate roller arrangements so that the running rail in the form of round steel bodies allows sufficient lateral guidance of the machine frame.

Durch die erfindungsgemäße Ausführung der Laufschiene wird der Vorteil erreicht, dass durch den Entfall einer zweiten Laufschiene die Faserballen vereinfacht in den Aufstellbereich befördert werden können, und für das Aufstellen der Faserballen von der der Laufschiene gegenüberliegenden Seite ist der Aufstellbereich frei befahrbar. So kann trotz einer Portalbauweise des Maschinengestells erreicht werden, dass der Ballenöffner lediglich eine einzige Laufschiene zur Führung des Maschinengestells benötigt, während die zweite Seitenwange auf einfache Weise über den Boden und damit nur in Höhenrichtung geführt ist. Der der Laufschiene gegenüberliegende Bereich des Ballenöffners kann damit mit einem durchgehenden, unterbrechungsfreien Boden ausgeführt werden, sodass die Faserballen nicht nur durch eine Aufstellgasse hindurch aufgestellt werden können, sondern die Faserballen können auch von der Seite zur Aufstellrichtung an den Ballenöffner geliefert werden.The design of the running rail according to the invention achieves the advantage that the fiber bales can be transported into the installation area in a simplified manner by eliminating a second running rail, and the installation area is freely accessible for setting up the fiber bales from the side opposite the running rail. Despite a portal design of the machine frame, it can be achieved that the bale opener only requires a single running rail to guide the machine frame, while the second side cheek is easily guided over the ground and therefore only in the height direction. The area of the bale opener opposite the running rail can thus be designed with a continuous, uninterrupted floor, so that the fiber bales can not only be set up through an installation aisle, but the fiber bales can also be delivered to the bale opener from the side in the installation direction.

Dabei hat sich gezeigt, dass eine lediglich einseitige Führung des Maschinengestells in Portalbauweise mit der erfindungsgemäßen Ausgestaltung der Laufschienen ausreichend ist, insbesondere wenn zwei beabstandet zueinander an der ersten Seitenwange angeordnete Laufrollen auf der Laufschiene geführt sind, und zwei weitere an der zweiten Seitenwange aufgenommene Laufrollen können über den Boden abrollen, ohne dass hierfür eine weitere Laufschiene notwendig wäre. Weitere Bestandteile des Ballenöffners, insbesondere die Führung der Saugluft, können an der Seite der ersten Seitenwange angeordnet werden, beispielsweise parallel hinter der Laufschienenanordnung, sodass der Aufstellbereich zum Aufstellen der Faserballen in hinreichender Weise beispielsweise lediglich eine Begrenzungsmarkierung aufweisen kann, ohne dass diese sonstige Bodenaufbauten benötigt.It has been shown that only one-sided guidance of the machine frame in a portal design with the design of the running rails according to the invention is sufficient, in particular if two rollers arranged at a distance from one another on the first side cheek are guided on the running rail, and two further rollers accommodated on the second side cheek can Roll over the floor without the need for an additional running rail. Further components of the bale opener, in particular the guidance of the suction air, can be arranged on the side of the first side cheek, for example parallel behind the running rail arrangement, so that the installation area for setting up the fiber bales can sufficiently have, for example, only one boundary marking, without the need for other floor structures .

Mit weiterem Vorteil weist die Laufschienenanordnung mehrere Fußelemente auf, die zur Aufnahme der Laufschiene ausgebildet sind und die auf einem Boden anordbar sind. Der Boden ist dabei vorteilhafterweise jener Boden, auf dem auch die Laufrollen der zweiten Seitenwange abrollen, und der Boden fällt zugleich zusammen mit demjenigen Boden, auf dem auch die Faserballen im Aufstellbereich aufgestellt werden können. Die Befestigung der Laufschiene aus dem Laufschienenkörper auf dem Boden mittels Fußelementen ist auf einfache Weise möglich, und die Fußelemente können in diskreten Abständen angeordnet sein, sodass sich der Laufschienenkörper zur Bildung der Laufschiene zwischen den beabstandet anzuordnenden Fußelementen frei verlaufend erstreckt. Die Biegefestigkeit des Laufschienenkörpers ist dabei derart hinreichend ausgebildet, dass sich keine Nachteile hinsichtlich der Führung des Maschinengestells ergeben. In Abhängigkeit der Länge der Laufschiene können mehrere Fußelemente mit diskreten Abständen zueinander auf dem Boden montiert werden, um mehrere Segmente der Laufschiene aufzunehmen. Die Abstände zwischen den Fußelementen können beispielsweise 500 mm bis 800 mm betragen. Die Fußelemente können insbesondere als Gussfüße ausgeführt werden, wobei die Gusskörper insbesondere für die Funktionsflächen spanend bearbeitet sein können.With further advantage, the running rail arrangement has a plurality of foot elements which are designed to accommodate the running rail and which can be arranged on a floor. The floor is advantageously the floor on which the rollers of the second side cheek also roll, and the floor also coincides with the floor on which the fiber bales can also be placed in the installation area. Fastening the running rail from the running rail body to the floor by means of foot elements is possible in a simple manner, and the foot elements can be arranged at discrete intervals, so that the running rail body extends freely between the foot elements to be arranged at a distance to form the running rail. The bending strength of the running rail body is designed to be sufficient so that there are no disadvantages with regard to the guidance of the machine frame. Depending on the length of the running rail, several foot elements can be mounted on the floor at discrete distances from one another in order to accommodate several segments of the running rail. The distances between the foot elements can be, for example, 500 mm to 800 mm. The foot elements can in particular be designed as cast feet, whereby the cast bodies can be machined, in particular for the functional surfaces.

Zur Verschraubung der Laufschiene auf den Fußelementen können Schraubelemente vorgesehen sein, die durch Durchgangslöcher in den Fußelementen hindurchgeführt sind und die in Gewindelöchern in der Laufschiene eingeschraubt sind. Die Schraubelemente können somit radial in den Laufschienenkörper eingeschraubt werden, sodass das Fußelement auf der Unterseite des Laufschienenkörpers fest mit diesem verbunden ist. Anschließend kann das Fußelement auf dem Boden verankert werden, wofür dieses mit Schraubelementen versehen werden kann, die in den Fußelementen durch Durchgangslöcher hindurchgeführt sind und die im Boden eingeschraubt werden können. Die Laufschiene kann aus mehreren Segmenten ausgebildet sein, die jeweilige Laufschienenkörper bilden, wobei die Segmente mittels Zylinderstiften stirnseitig aneinander gebunden werden können. Somit ergibt sich eine durchgehende Struktur der Laufschiene, die auch erhebliche Längen aufweisen kann, in Abhängigkeit davon, wie langgestreckt der Aufstellbereich zum Aufstellen der Faserballen ausgebildet ist.To screw the running rail onto the foot elements, screw elements can be provided which are passed through through holes in the foot elements and which are screwed into threaded holes in the running rail. The screw elements can thus be screwed radially into the running rail body, so that the foot element on the underside of the running rail body is firmly connected to it. The foot element can then be anchored to the floor, for which purpose it can be provided with screw elements which are passed through through holes in the foot elements and which can be screwed into the floor. The running rail can be formed from several segments, which form respective running rail bodies, whereby the segments can be connected to one another at the front using cylindrical pins. This results in a continuous structure of the running rail, which can also have considerable lengths, depending on how elongated the installation area is designed for setting up the fiber bales.

Der Laufschienenkörper zur Bildung der Laufschiene kann beispielsweise aus einem Baustahl hergestellt sein, vorzugsweise aus einem St60-Stahlwerkstoff. Im Falle eines Rundstahlkörpers kann dieser dabei einen Durchmesser von 40 mm bis 100 mm, bevorzugt von 50 mm bis 80 mm, und besonders bevorzugt von 60 mm aufweisen. Dabei hat sich gezeigt, dass eine Laufschiene mit einem runden Querschnitt von 60 mm Durchmesser hinreichend biegesteif ist, um eine sichere Führung des Maschinengestells zu gewährleisten, ohne dass der konstruktive Aufwand zur Bildung der Laufschienenanordnung unnötig vergrößert wird. Auch der Rollenabgriff durch die Laufrollen, mit dem das Maschinengestell entsprechend geführt werden kann, kann eine ausreichende Führungsfunktion aufbauen, wenn der Rundstahlkörper einen Durchmesser von etwa 60 mm aufweist. Insbesondere kann der Durchmesser vorgesehen sein mit einem Wert von 55 mm bis 65 mm.The running rail body for forming the running rail can be made, for example, from a structural steel, preferably from a St60 steel material. In the case of a round steel body, this can have a diameter of 40 mm to 100 mm, preferably 50 mm to 80 mm, and particularly preferably 60 mm. It has been shown that a running rail with a round cross-section of 60 mm in diameter is sufficiently rigid to ensure safe guidance of the machine frame without unnecessarily increasing the design effort for forming the running rail arrangement. The roller grip through the rollers, with which the machine frame can be guided accordingly, can also provide a sufficient guiding function if the round steel body has a diameter of approximately 60 mm. In particular, the diameter can be provided with a value of 55 mm to 65 mm.

Ein weiterer Vorteil wird erreicht, wenn die Fußelemente zwei etwa V-förmig zueinander ausgerichtete Aufnahmeflächen aufweisen, wobei der Laufschienenkörper zur Bildung der Laufschiene mit den Aufnahmeflächen eine Linienberührung aufweist und insbesondere nur mit den Aufnahmeflächen in Kontakt gelangt, sodass ein technisch definierter Kontakt gebildet wird. Auf der Unterseite der Fußelemente können Ausgleichsplatten angeordnet werden, mit denen Unebenheiten im Boden ausgleichbar sind. Die Laufschiene wird bei der Montage vermessen, und es kann eine entsprechende Anzahl von Ausgleichsplatten unter jedes der Fußelemente derart angeordnet werden, um nach einem Befestigen der Fußelemente auf dem Boden einen gewünschten, vorzugsweise geraden Verlauf der Laufschiene zu erreichen. Dabei können Ausgleichsplatten verschiedener Dicke bereitgestellt werden, um auch eine Feinjustage der Ausrichtung der Laufschiene zu ermöglichen.A further advantage is achieved if the foot elements have two receiving surfaces aligned approximately in a V-shape, the running rail body to form the running rail has a line contact with the receiving surfaces and in particular only comes into contact with the receiving surfaces, so that a technically defined contact is formed. Compensating plates can be arranged on the underside of the foot elements to compensate for unevenness in the floor. The running rail is measured during assembly, and a corresponding number of compensating plates can be arranged under each of the foot elements in order to achieve a desired, preferably straight course of the running rail after the foot elements have been fastened to the floor. Compensating plates of different thicknesses can be provided to enable fine adjustment of the alignment of the running rail.

Schließlich kann die Laufschienenanordnung Abdeckelemente aufweisen, die an den Fußelementen angeordnet sind und die wenigstens die Unterseite und/oder einen seitlich unteren Bereich der Laufschiene abdecken. Damit wird insbesondere das Ansammeln von Verunreinigungen, besonders auch das Ansammeln von Fasermaterial, neben und unter der Laufschiene verhindert, und das Reinigen des Bereiches unter und neben der Laufschienenanordnung wird durch die Abdeckelemente erleichtert. Beispielsweise kann der runde Querschnitt der Laufschiene etwa zu zweidrittel oder zu dreiviertel aus der oberen Abdeckfläche der Abdeckelemente herausragen, sodass hinreichend Raum gebildet ist, in dem die Laufrollen des Maschinengestells zur oberseitigen Führung und sogar zur seitlichen Führung an der Laufschiene angeordnet werden können.Finally, the running rail arrangement can have cover elements which are arranged on the foot elements and which cover at least the underside and/or a laterally lower region of the running rail. This prevents the accumulation of contaminants, especially the accumulation of fiber material, next to and under the running rail, and cleaning the area under and next to the running rail arrangement is made easier by the cover elements. For example, the round cross section of the running rail can protrude approximately two-thirds or three-quarters from the upper cover surface of the cover elements, so that sufficient space is formed in which the rollers of the machine frame can be arranged on the running rail for top guidance and even for lateral guidance.

Vorzugsweise ist die Laufschiene aus mehreren Segmenten gebildet, die mittels Stiften miteinander verbunden sind. Dadurch muss ein ein langes und damit instabiles und schwer zu transportierendes Laufschienenprofil hergestellt werden. Zudem ermöglicht dies die längenvariable Bestellung und Montage der Laufschiene in Abhängigkeit vom Aufstellort.The running rail is preferably formed from several segments which are connected to one another by means of pins. This means that a long and therefore unstable and difficult to transport running rail profile must be produced. This also enables variable-length ordering and installation of the running rail depending on the installation location.

Die genannten Laufrollen sind zumindest im Bereich der Lauffläche vorzugsweise aus Kunststoff gebildet. Dies ist ein besonders verschleißarmer Werkstoff, der zudem reibungsgünstig ausgebildet werden kann.The rollers mentioned are preferably made of plastic, at least in the area of the running surface. This is a particularly low-wear material that can also be made to have low friction.

Weitere die Erfindung verbessernde Maßnahmen werden nachstehend gemeinsam mit der Beschreibung eines bevorzugten Ausführungsbeispiels der Erfindung anhand der Figuren näher dargestellt. Es zeigt

Fig. 1
eine erste perspektivische Ansicht eines Ballenöffners mit den Merkmalen der Erfindung,
Fig. 2
eine zweite perspektivische Ansicht einer Laufschienenanordnung mit einer Laufschiene aus einem Rundstahlkörper,
Fig. 3
eine perspektivische Ansicht der Laufschienenanordnung,
Fig. 4
eine perspektivische Detailansicht der Laufschienenanordnung mit zwei Segmenten der Laufschiene, die voneinander getrennt dargestellt sind,
Fig. 5
eine Schnittansicht der Laufschienenanordnung mit der Laufschiene und mit einem Fußelement,
Fig. 6
eine perspektivische Detailansicht eines Fußelementes
Fig. 7
die Führung einer Seitenwange auf der Laufschiene von Figur 2 in zwei Ansichten,
Fig. 8
eine der Führungsrollen von Figur 6 in größerem Detail,
Fig. 9
die auf der Laufschiene geführte Seitenwange in zwei Stellungen und
Fig. 10
die auf der Laufschiene geführte Seitenwange in zwei anderen Stellungen.
Further measures improving the invention are shown in more detail below together with the description of a preferred exemplary embodiment of the invention with reference to the figures. It shows
Fig. 1
a first perspective view of a bale opener with the features of the invention,
Fig. 2
a second perspective view of a running rail arrangement with a running rail made of a round steel body,
Fig. 3
a perspective view of the running rail arrangement,
Fig. 4
a perspective detailed view of the running rail arrangement with two segments of the running rail, which are shown separately from one another,
Fig. 5
a sectional view of the running rail arrangement with the running rail and with a foot element,
Fig. 6
a perspective detailed view of a foot element
Fig. 7
the guidance of a side cheek on the running rail Figure 2 in two views,
Fig. 8
one of the leadership roles of Figure 6 in greater detail,
Fig. 9
the side panel guided on the running rail in two positions and
Fig. 10
the side wall guided on the running rail in two other positions.

Die Figuren 1 und 2 zeigen in zwei unterschiedlichen perspektivischen Ansichten einen Ballenöffner 1 mit den Merkmalen der vorliegenden Erfindung. Der Ballenöffner 1 dient zum oberseitigen Abfräsen von Faserballen 100, die in einem Aufstellbereich 28 auf einem Boden 17 in mehreren Reihen nebeneinander in einer Aufstellrichtung 10 aufgestellt sind. Zum Abfräsen der Oberseite der Faserballen 100 dient eine Abnehmereinheit 12, die an einem Maschinengestell 11 in einer Höhenrichtung verfahrbar aufgenommen ist. Das Maschinengestell 11 weist eine erste Seitenwange 15 und zweite Seitenwange 16 auf, und zwischen den beiden Seitenwangen 15 und 16 erstrecken sich zwei beabstandet zueinander angeordnete Portalprofile 48.The Figures 1 and 2 show a bale opener 1 with the features of the present invention in two different perspective views. The bale opener 1 is used for milling off the top of fiber bales 100, which are set up in a set-up area 28 on a floor 17 in several rows next to each other in a set-up direction 10. A removal unit 12, which is mounted on a machine frame 11 in a height direction, is used to mill off the top side of the fiber bale 100. The machine frame 11 has a first side cheek 15 and a second side cheek 16, and two portal profiles 48 arranged at a distance from one another extend between the two side cheeks 15 and 16.

Die Seitenwangen 15 und 16 weisen Laufrollen 53 und 54 auf, und zur Führung des Maschinengestells 11 in der Aufstellrichtung 10 dient eine Laufschienenanordnung 13 mit einer einzigen Laufschiene 14, auf der die Laufrollen 53 an der ersten Seitenwange 15 geführt sind. Die Laufrollen 54, die sich unterseitig an der zweiten Seitenwange 16 befinden, laufen auf dem Boden 17 ab, auf dem auch die Faserballen 100 aufgestellt sind, und auf dem die Laufschienenanordnung 13 mit der Laufschiene 14 montiert ist.The side cheeks 15 and 16 have rollers 53 and 54, and a running rail arrangement 13 with a single running rail 14 is used to guide the machine frame 11 in the installation direction 10, on which the rollers 53 are guided on the first side cheek 15. The rollers 54, which are located on the underside of the second side cheek 16, run on the floor 17, on which the fiber bales 100 are also set up, and on which the running rail arrangement 13 with the running rail 14 is mounted.

Die Abnehmereinheit 12 weist auf einer Unterseite zwei Abnehmerwalzen 31 und drei Stützwalzen 32 auf, wobei sich die Abnehmerwalzen 31 zwischen den Stützwalzen 32 befinden und wobei sämtliche Walzen 31, 32 parallel zueinander in Querrichtung 49 verlaufen. Vor den Abnehmerwalzen 31 befinden sich Gitterroste 33. Werden die Walzen 31, 32 in Rotation versetzt, so nehmen die Abnehmerwalzen 31 flockenartige Bestandteile aus den gepressten Faserballen 100 auf, und die Faserflocken werden über die Absaugeinrichtung 46 abgesaugt und ihrer weiteren Verwendung zugeführt.The doffer unit 12 has two doffer rollers 31 and three support rollers 32 on one underside, the doffer rollers 31 being located between the support rollers 32 and all of the rollers 31, 32 running parallel to one another in the transverse direction 49. There are gratings 33 in front of the take-off rollers 31. If the rollers 31, 32 are set in rotation, the take-off rollers 31 pick up flake-like components from the pressed fiber balls 100, and the fiber flakes are sucked off via the suction device 46 and fed for further use.

Die Absaugeinrichtung 46 umfasst eine Saughaube 34, die sich oberseitig an der Abnehmereinheit 12 befindet und an die sich ein vertikal nach oben führender Spiralschlauch 35 anschließt. Bei einem vertikalen Verfahren der Abnehmereinheit 12 kann sich der Spiralschlauch 35 in der Länge verändern, und der Spiralschlauch 35 ist oberseitig angebunden an einen Saugluftschacht 36, der die Saugluft in die erste Seitenwange 15 oberseitig einführt. Dabei ist der Saugluftschacht 36 selbsttragend an der Oberseite der ersten Seitenwange 15 angebunden, und der Spiralschlauch 35 befindet sich in hängender Anordnung an dem Ende des Saugluftschachtes 36. Die Saugluft durchwandert dabei die erste Seitenwange 15 und gelangt über einen Kanal 47 gemeinsam mit den Faserflocken an eine weiterverarbeitende Station.The suction device 46 comprises a suction hood 34, which is located on the top side of the pickup unit 12 and to which a spiral hose 35 leading vertically upwards is connected. When the pickup unit 12 is moved vertically, the length of the spiral hose 35 can change, and the spiral hose 35 is connected on the top side to a suction air duct 36, which introduces the suction air into the first side cheek 15 on the top side. The suction air shaft 36 is self-supporting and connected to the top of the first side cheek 15, and the spiral hose 35 is in a hanging arrangement at the end of the suction air shaft 36. The suction air travels through the first side cheek 15 and arrives via a channel 47 together with the fiber flakes a further processing station.

Die manuelle Steuerung des Ballenöffners 1 erfolgt über ein Bedienpult 37, welches beispielhaft an einer Kopfseite des Kanals 47 aufgestellt ist. Die elektrische Versorgung des Ballenöffners 1 erfolgt über einen Anschlusskasten 38, der sich am selben Kopfende des Kanals 47 befindet. Über eine Leistungs- und Signalverbindung 29, umfassend eine Kabelketteneinheit 30, kann eine elektrische Versorgung sowie eine Signalverbindung mit dem beweglichen Maschinengestell 11 hergestellt werden, wobei sich die Leistungs- und Signalverbindung 29 seitlich am Kanal 47 befindet und mit dem Anschlusskasten 38 verbunden ist. Ein Mitnehmer 39 bildet dabei die bewegliche Anbindung der Kanalketteneinheit 30 und ist an einer Bandhebeeinheit 40 angebunden, die mit der ersten Seitenwange 15 verbunden ist und folglich mit der Bewegung des Maschinengestells 11 in der Aufstellrichtung 10 mitbewegt wird. Die Bandhebeeinheit 40 dient zum Anheben eines Abdeckbandes 45, das den Kanal 47 oberseitig abdeckt.The bale opener 1 is controlled manually via a control panel 37, which is set up, for example, on a head side of the channel 47. The bale opener 1 is supplied with electricity via a connection box 38, which is located at the same head end of the channel 47. An electrical supply and a signal connection to the movable machine frame 11 can be established via a power and signal connection 29, comprising a cable chain unit 30, the power and signal connection 29 being located on the side of the channel 47 and being connected to the connection box 38. A driver 39 forms the movable connection of the channel chain unit 30 and is connected to a belt lifting unit 40, which is connected to the first side cheek 15 and is consequently moved with the movement of the machine frame 11 in the installation direction 10. The band lifting unit 40 is used to lift a cover band 45, which covers the channel 47 on the top side.

Figur 3 zeigt eine perspektivische Ansicht der Laufschienenanordnung 13 mit einer Laufschiene 14, die mit mehreren dargestellten Fußelementen 18 mittels Schraubelementen 22 auf einem hier nicht dargestellten Boden verschraubt werden kann. Die Unterseiten der Fußelemente 18 liegen dabei auf dem Boden auf, während die Laufschiene 14 in schwebender Anordnung sich zwischen den Fußelementen 18 erstreckt. Endseitig besitzt die Laufschiene 14 einen Endanschlag 57, der verhindert, dass das Maschinengestell 11 mit den Laufrollen 53 von der Laufschiene 14 herunter gelangen kann. An den Fußelementen 18 sind ferner Abdeckelemente 27 angeordnet, mit denen der Bereich unter der Laufschiene 14 abgedeckt ist. Die Abdeckelemente 27 sind dabei an den Fußelementen 18 seitlich verschraubt. Figure 3 shows a perspective view of the running rail arrangement 13 with a running rail 14, which can be screwed to a plurality of foot elements 18 shown by means of screw elements 22 on a floor, not shown here. The undersides of the foot elements 18 rest on the floor, while the running rail 14 is in a floating arrangement between the foot elements 18 extends. At the end, the running rail 14 has an end stop 57, which prevents the machine frame 11 with the running rollers 53 from coming down from the running rail 14. Cover elements 27 are also arranged on the foot elements 18, with which the area under the running rail 14 is covered. The cover elements 27 are screwed laterally to the foot elements 18.

Figur 4 zeigt in einer fliegenden Ansicht zwei Segmente 14a und 14b der Laufschiene 14, die stirnseitig mit einem Zylinderstift 24 verbunden werden können. Hierfür befinden sich Aufnahmelöcher 59 in den Stirnseiten 60 der Segmente 14a und 14b, in die der Zylinderstift 24 beispielsweise mit jeweils seiner halben Länge eingeführt werden kann. Unterseitig unter der Laufschiene 14 ist ein Fußelement 18 angeordnet gezeigt, wobei die Verbindung zwischen den Segmenten 14a und 14b zur durchgehenden Ausgestaltung der Laufschiene 14 über dem Bereich des Fußelemente 18 vorgesehen ist, sodass beide miteinander verbundenen Segmente 14a und 14b jeweils endseitig auf den Fußelementen 18 aufliegen können. Die Darstellung zeigt dabei weiterhin die Abdeckelemente 27 in Anordnung an der Unterseite des Segmentes 14a und in Befestigung am Fußelement 18. Ein weiteres Abdeckelement 27 ist unterhalb des Segmentes 14b angeordnet, das ebenfalls an dem Fußelement 18 angeordnet werden kann. Figure 4 shows a flying view of two segments 14a and 14b of the running rail 14, which can be connected at the front with a cylinder pin 24. For this purpose, there are receiving holes 59 in the end faces 60 of the segments 14a and 14b, into which the cylinder pin 24 can be inserted, for example, at half its length. A foot element 18 is shown arranged on the underside under the running rail 14, the connection between the segments 14a and 14b being provided for the continuous design of the running rail 14 over the area of the foot elements 18, so that both interconnected segments 14a and 14b each have their ends on the foot elements 18 can lie on. The illustration further shows the cover elements 27 arranged on the underside of the segment 14a and in attachment to the foot element 18. Another cover element 27 is arranged below the segment 14b, which can also be arranged on the foot element 18.

Figur 5 zeigt eine Seitenansicht der Laufschiene 14 in dem Bereich, in dem zwei Segmente 14a und 14b der Laufschiene 14 mittels des Zylinderstiftes 24 stirnseitig miteinander verbunden sind, wobei der Zylinderstift 24 jeweils etwa mit seiner halben Länge in Aufnahmelöcher 59 in den Stirnseiten 60 der Segmente 14a und 14b passgenau hineingeführt ist. Ein Schraubelement 19, das durch ein Durchgangsloch 20 im Fußelement 18 hindurchgeführt ist, ist in einem Gewindeloch 21 in der Laufschiene 14 eingeschraubt. Hierfür verläuft das Gewindeloch quer zur Längsrichtung der Laufschiene 14 in radialer Richtung in diese hinein. Damit wird das Fußelement 18 unterseitig an der Laufschiene 14 befestigt. Seitlich wird das Abdeckelement 27 am Fußelement 18 befestigt. Figure 5 shows a side view of the running rail 14 in the area in which two segments 14a and 14b of the running rail 14 are connected to one another at the front by means of the cylindrical pin 24, with the cylindrical pin 24 being inserted approximately half its length into receiving holes 59 in the end faces 60 of the segments 14a and 14b is inserted precisely. A screw element 19, which is passed through a through hole 20 in the foot element 18, is screwed into a threaded hole 21 in the running rail 14. For this purpose, the threaded hole runs transversely to the longitudinal direction of the running rail 14 in the radial direction into it. The foot element 18 is thus attached to the underside of the running rail 14. The cover element 27 is attached to the foot element 18 on the side.

Das Fußelement 18 wird mittels weiterer Schraubelemente 22 im Boden 17 verschraubt, wofür die Schraubelemente 22 ferner Dübelelemente 58 umfassen. Zwischen der Oberseite des Bodens 17 und der Unterseite des Fußelements 18 sind beispielhaft zwei Ausgleichsplatten 26 angeordnet, wodurch eine Höheneinstellung des Fußelementes 18 über dem Boden 17 hergestellt werden kann, insbesondere um eine gerade Ausrichtung der Laufschiene 14 bei dennoch fester Anordnung auf dem Boden 17 zu erreichen. Anstelle oder zusätzlich zu Ausgleichsplatten 26 gleicher Höhe bzw. Dicke können die Platten 26 auch zueinander verschiedene Höhen- bzw. Dickenabmessungen aufweisen.The foot element 18 is screwed into the floor 17 by means of further screw elements 22, for which the screw elements 22 also include dowel elements 58. For example, two compensating plates 26 are arranged between the top of the floor 17 and the underside of the foot element 18, whereby a height adjustment of the foot element 18 above the floor 17 can be achieved, in particular in order to ensure a straight alignment of the running rail 14 while still maintaining a fixed arrangement on the floor 17 to reach. Instead of or in addition to compensating plates 26 of the same height or thickness, the plates 26 can also have different height or thickness dimensions from one another.

Figur 6 zeigt schließlich eine perspektivische Ansicht des Fußelementes 18 mit zwei Aufnahmeflächen 25, die etwa V-förmig zueinander ausgebildet sind. Wird die Laufschiene 14 oberseitig in das Fußelement 18 eingelegt, so ergeben sich Linienkontakte zwischen den Aufnahmeflächen 25 und der hier rund ausgebildeten Laufschiene 14. Zwischen den beiden Aufnahmeflächen 25 befindet sich das Durchgangsloch 20 zur Hindurchführung des Schraubelementes 19 und außenseitig befinden sich Durchgangslöcher 23 zur Hindurchführung der Schraubelemente 22. Figure 6 finally shows a perspective view of the foot element 18 with two receiving surfaces 25, which are approximately V-shaped to one another. If the running rail 14 is inserted into the foot element 18 on the top side, line contacts result between the receiving surfaces 25 and the running rail 14, which is round here. Between the two receiving surfaces 25 there is the through hole 20 for the passage of the screw element 19 and on the outside there are through holes 23 for the passage the screw elements 22.

Fig. 7a zeigt den Ballenöffner 1 in Bezug auf die Führung der Seitenwange 15 auf der Laufschiene 14 in einer Ansicht von unten. Durch in der Seitenwange 15 in Richtung Laufschiene 14 weisende, nicht bezeichnete Öffnungen hindurch stehen die Laufrollen 53, 53 von der Seitenwange 15 in Richtung Laufschiene 14 etwas hervor und sind auf ebenjener Laufschiene 14 abrollend angeordnet. Jede Laufrolle 53 ist vermittels einer zugehörigen Achse 63 in der Seitenwange 15 ortsfest und frei rotierbar aufgenommen. Um ein Bewegen der Laufrollen 53, 53 auf der Laufschiene 14 hauptsächlich in Querrichtung 49 weitestgehend zu verhindern, sind hier exemplarisch vier Führungsrollen 62 vorgesehen. Jeweils zwei Führungsrollen 62, 62 sind vorzugsweise an einer Halterung 67 frei rotierbar angebracht, die exemplarisch an einer jeweiligen der zwei fahrtweisenden Flächen bzw. Seiten der Seitenwange 15 angebracht sind. Die Rotationsachsen der Führungsrollen 62 verlaufen parallel zueinander und im Wesentlichen quer zu den Rotationsachsen der Laufrollen 53, 53 und quer zur in Richtung Seitenwange 15 weisenden (Führungs-)Fläche der Laufschiene 14. Fig. 7a shows the bale opener 1 in relation to the guidance of the side cheek 15 on the running rail 14 in a view from below. The rollers 53, 53 protrude slightly from the side cheek 15 in the direction of the running rail 14 through unmarked openings pointing in the side wall 15 in the direction of the running rail 14 and are arranged to roll on the same running rail 14. Each roller 53 is accommodated in a stationary and freely rotatable manner in the side cheek 15 by means of an associated axis 63. In order to largely prevent the rollers 53, 53 from moving on the running rail 14 mainly in the transverse direction 49, four guide rollers 62 are provided here as an example. Two guide rollers 62, 62 are preferably attached to a holder 67 in a freely rotatable manner, which are attached, for example, to one of the two travel-oriented surfaces or sides of the side cheek 15. The axes of rotation of the guide rollers 62 run parallel to each other and essentially transverse to the axes of rotation of the rollers 53, 53 and transverse to the (guide) surface of the running rail 14 pointing in the direction of the side cheek 15.

Ferner sind die Abnehmereinheit 12 mit Stützwalzen 32 und zwei Fußelemente 18, 18 jeweils mit Ausgleichselementen 26 zu sehen.Furthermore, the pickup unit 12 with support rollers 32 and two foot elements 18, 18 each with compensating elements 26 can be seen.

Fig. 7b zeigt die Seitenwange 15 im Ausschnitt und mit einer fahrtweisenden, offenen Stirnseite. Dadurch ist die dahinter in der Seitenwange 15 aufgenommene Laufrolle 53 zu erkennen. Die Laufrolle 53 weist beispielhaft eine im Querschnitt gekrümmte und konkave Lauffläche 68 auf. Der Krümmungsgrad der Lauffläche 68 ist geringer als ein Krümmungsrad der Laufschiene 14 im der Seitenwange 15 zugewandten Bereich, auf dem die Laufrollen 53 abrollen. Dadurch wird ein reibungsarmer, vorzugsweise linienartiger Kontakt zwischen jeweiliger Laufrolle 53 und Laufschiene 14 realisiert. Fig. 7b shows the side cheek 15 in a cutout and with a travel-oriented, open front side. This means that the roller 53 accommodated behind it in the side cheek 15 can be seen. The roller 53 has, for example, a running surface 68 which is curved and concave in cross section. The degree of curvature of the running surface 68 is less than a wheel of curvature of the running rail 14 in the area facing the side cheek 15 on which the rollers 53 roll. This creates a low-friction, preferably line-like contact between the respective roller 53 and the running rail 14.

Hier linksseitig der Laufrolle 53 ist in einem Zwischenraum zur Seitenwange 15 ein Antriebsabschnitt 66 aufgenommen, Dieser dient zur Anbindung eines Antriebsmotors zum Antreiben dieser Laufrolle 53 und damit zum Bewegen der Seitenwange 15 auf der Laufschiene 14, Im gezeigten Beispiel handelt es sich um eine Riemenscheibe, um die herum ein hier nicht dargestellter Antriebsriemen geschlungen ist. Der Antriebsabschnitt 66 kann andere Formen haben. Beispielsweise kann er mittels eines Getrieberads gebildet sein, mit dem ein anderes Getrieberad kämmt.Here, on the left side of the roller 53, a drive section 66 is accommodated in a space between the side cheek 15. This is used to connect a drive motor to drive this roller 53 and thus to move the side cheek 15 on the running rail 14. In the example shown it is a belt pulley, around which a drive belt, not shown here, is wrapped. The drive section 66 may have other shapes. For example, it can be formed by a gear wheel with which another gear wheel meshes.

Die Laufrolle 53 und der Antriebsabschnitt 66 können einstückig ausgebildet sein oder, wie hier gezeigt, mittels eines Verbindungsabschnitts 70 drehfest zueinander angeordnet sein.The roller 53 and the drive section 66 can be formed in one piece or, as shown here, can be arranged in a rotationally fixed manner with respect to one another by means of a connecting section 70.

Zumindest die Laufrolle 53 ist über Lager 69 frei rotierbar auf der zugehörigen Achse 63 angeordnet, die ihrerseits an der Seitenwange 15 innenseitig angebracht ist. Der Antriebsabschnitt 66 kann ebenfalls auf dem hier linken Lager 69 angeordnet sein. Alternativ ist die Achse 63 über die Lager 69 somit frei rotierbar in der Seitenwange 15 angeordnet. D. h. Antriebsabschnitt 66 und Laufrolle 53 können drehfest auf der Achse 63 angeordnet sein. Dies ermöglicht ein Modul, das über die Lager 69, 69 nur noch in die Seitenwange 15 eingesetzt werden muss.At least the roller 53 is freely rotatable via bearings 69 on the associated axis 63, which in turn is attached to the side cheek 15 on the inside is. The drive section 66 can also be arranged on the bearing 69 on the left here. Alternatively, the axis 63 is arranged in the side cheek 15 so that it can rotate freely via the bearings 69. i.e. Drive section 66 and roller 53 can be arranged on the axis 63 in a rotationally fixed manner. This enables a module that only needs to be inserted into the side cheek 15 via the bearings 69, 69.

Figur 8 zeigt eine der Führungsrollen 62 in größerem Detail. Die Führungsrolle 62 weist einen Laufflächenabschnitt 65 auf, mittels dessen umlaufender, nicht bezeichneter Lauffläche die Führungsrolle 62 an der Laufschiene 14 entlang geführt abrollt. Die Führungsrolle 62 umfasst eine Achse 64, die über ein Lager 71 frei rotierbar zum Laufflächenabschnitt 65 angeordnet ist. Die Achse 64 weist inwendig eine Befestigungsöffnung 61 beispielsweise in Form eines vorzugsweise nur einseitig offenen Gewindelochs auf. Ein nicht dargestelltes Befestigungselement ist vorzugsweise von einer der jeweiligen Führungsrolle 62 abgewandten Seite hier der Halterung 67 hindurch in die Befestigungsöffnung 61 eingeschraubt. Figure 8 shows one of the guide rollers 62 in greater detail. The guide roller 62 has a running surface section 65, by means of whose circumferential, unmarked running surface the guide roller 62 rolls along the running rail 14 in a guided manner. The guide roller 62 includes an axle 64, which is arranged to be freely rotatable to the tread section 65 via a bearing 71. The axis 64 has a fastening opening 61 on the inside, for example in the form of a threaded hole that is preferably only open on one side. A fastening element, not shown, is preferably screwed into the fastening opening 61 from a side of the holder 67 facing away from the respective guide roller 62.

Wie zu erkennen, verläuft die Mittelachse der vorzugsweise im Querschnitt kreisrunden Befestigungsöffnung 61 nicht auf der Rotationsachse des Laufflächenabschnitts 65. Dies ermöglicht, den Abstand des Laufrollenabschnitts 65 zur Laufschiene 14 mittels Verdrehens der Laufrolle 62 um die Mittelachse verändern zu können. Dies ist eine sehr einfache Methode, die Führungsrollen 62 vor Ort anpassen zu können.As can be seen, the central axis of the fastening opening 61, which is preferably circular in cross section, does not run on the axis of rotation of the tread section 65. This makes it possible to change the distance of the roller section 65 from the running rail 14 by rotating the roller 62 about the central axis. This is a very simple method of being able to adjust the guide rollers 62 on site.

Fig. 9 zeigt die auf der Laufschiene 14 geführte Seitenwange 15 in zwei Stellungen. Die zweite Stellung ist mittels gestrichelter Linien dargestellt, und die zugehörigen Bezugszeichen sind zur besseren Unterscheidung jeweils mit einem Apostroph versehen. Fig. 9 shows the side cheek 15 guided on the running rail 14 in two positions. The second position is shown by dashed lines, and the associated reference numbers are each provided with an apostrophe for better distinction.

Die Laufschiene 14 hat vorzugsweise einen kreisrunden Querschnitt. Da die Rotationsachsen der Laufrollen 53 und der Führungsrollen 62, 62 im Wesentlichen quer zueinander verlaufen und die konkave Lauffläche der Laufrolle 53 exemplarisch einer Teilumfangslinie eines Kreises entspricht, der einen gleichen oder größeren Durchmesser hat als die Laufschiene 14 im Querschnitt, kann die Seitenwange 15 auf der Laufschiene 14 verkippen. Die Achse, um die das Verkippen stattfindet, entspricht in Fig. 9 einer Linie, die senkrecht zur Bildebene verläuft und den Kreismittelpunkt des Laufschienenquerschnitts beinhaltet.The running rail 14 preferably has a circular cross section. Since the axes of rotation of the rollers 53 and the guide rollers 62, 62 are essentially transverse run to each other and the concave running surface of the roller 53 corresponds, for example, to a partial circumference line of a circle which has an equal or larger diameter than the running rail 14 in cross section, the side cheek 15 can tilt on the running rail 14. The axis around which the tilting takes place corresponds to in Fig. 9 a line that runs perpendicular to the image plane and includes the center of the circle of the running rail cross section.

In Verkippstellung ist die Seitenwange 15' mit den Rollen 53' 64' und den Achsen 63', 64' hier in Bezug auf die mit durchgezogenen Linien dargestellte erste Stellung etwas nach links verkippt. Aufgrund der Kreisform des Querschnitts der Laufschiene 14 liegen trotzdem alle Führungsrollen 62' weiterhin an der Laufschiene 14 an. Aufgrund der Konkavität der Lauffläche der Laufrolle 53' hat diese ebenfalls weiterhin Kontakt mit der Laufschiene 14. Das Verkippen ermöglicht es, Bodenunebenheiten auszugleichen, entlang denen die hier nicht dargestellte Seitenwange 16 geführt sein kann. Dies erhöht die Betriebssicherheit und Einsatzflexibilität des Ballenöffners 1.In the tilting position, the side cheek 15 'with the rollers 53' 64' and the axes 63', 64' is tilted slightly to the left here in relation to the first position shown with solid lines. Due to the circular shape of the cross section of the running rail 14, all guide rollers 62 'still lie on the running rail 14. Due to the concavity of the running surface of the roller 53 ', it also continues to be in contact with the running rail 14. The tilting makes it possible to compensate for uneven floors along which the side cheek 16, not shown here, can be guided. This increases the operational safety and flexibility of use of the bale opener 1.

Figur 10 zeigt die auf der Laufschiene 14 geführte Seitenwange 15 wiederum in zwei, nunmehr anderen Stellungen. Analog zu Figur 9 sind die zweite Stellung mittels gestrichelter Linien dargestellt und die zugehörigen Bezugszeichen zur besseren Unterscheidung jeweils mit einem Apostroph versehen Figure 10 shows the side cheek 15 guided on the running rail 14 in two, now different positions. Analogous to Figure 9 the second position is shown by dashed lines and the associated reference numbers are each provided with an apostrophe for better differentiation

Wie zu erkennen, weist der Ballenöffner 1 exemplarisch nur drei Führungsrollen 62, 62' auf, obwohl jede andere, größere Anzahl von Führungsrollen möglich ist. Zumindest zwei (hier links angeordnete) Führungsrollen 62, 62' sind an ein und derselben Seite der Laufschiene 14 angeordnet, und die dritte Führungsrolle 62 ist an der gegenüberliegenden Seite der Laufschiene 14 angeordnet.As can be seen, the bale opener 1 has, for example, only three guide rollers 62, 62', although any other, larger number of guide rollers is possible. At least two guide rollers 62, 62' (arranged here on the left) are arranged on one and the same side of the running rail 14, and the third guide roller 62 is arranged on the opposite side of the running rail 14.

Eine Gerade, die beide linke Führungsrollen 62, 62 an ihren der Laufschiene 14 zugewandten Seiten tangential außenseitig berührt, und eine Gerade, die die rechte Führungsrolle 62 an ihren der Laufschiene 14 zugewandten Seite tangential außenseitig berührt, verlaufen parallel zueinander. Beide Geraden haben einen Abstand zueinander, der größer ist als die Außenabmessung der Laufschiene 14, entlang der Rotationsachsen der Führungsrollen 62 gesehen. D. h. eine der Führungsrollen 62, 62' (die untere, linke Führungsrolle 62 bzw. die obere linke Führungsrolle 62') hat keinen Kontakt zur Laufschiene 14. Dies ist dem Umstand geschuldet, dass die Seitenwange 16 nicht angetrieben sein muss. Beim Beschleunigen der hier nicht sichtbaren Laufrollen 53 entsteht aufgrund der Trägheit der sonstigen Teile des Ballenöffners 1 (insbesondere der Seitenwange 16 und der Abnehmereinheit 12) ein verzögertes Anlaufen der Seitenwange 16. Dadurch entsteht ein Drehmoment um eine Achse, die vorzugsweise parallel zu den Rotationsachsen der Führungsrollen 62, 62' und im Wesentlichen mittig in Bezug auf den Ballenöffner 1 verläuft. Die Trägheit wirkt der Bewegungsrichtung der mittels der Laufrollen 53 bewegten Seitenwange 15, 15' entgegen. Beim Beschleunigen in Bewegungsrichtung B2 entsteht dabei die mittels durchgezogener Linien dargestellte Stellung, und beim Beschleunigen in Bewegungsrichtung B1 die mittels gestrichelter Linien dargestellte Stellung.A straight line that touches both left guide rollers 62, 62 tangentially on the outside on their sides facing the running rail 14, and a straight line that touches the right one Guide roller 62 touches tangentially on the outside on its side facing the running rail 14, run parallel to one another. Both straight lines are at a distance from one another that is greater than the outer dimension of the running rail 14, viewed along the axes of rotation of the guide rollers 62. i.e. One of the guide rollers 62, 62' (the lower, left guide roller 62 or the upper left guide roller 62') has no contact with the running rail 14. This is due to the fact that the side cheek 16 does not have to be driven. When accelerating the rollers 53, which are not visible here, a delayed start of the side cheek 16 occurs due to the inertia of the other parts of the bale opener 1 (in particular the side cheek 16 and the doffer unit 12). This creates a torque about an axis, which is preferably parallel to the axes of rotation of the Guide rollers 62, 62 'and runs essentially centrally in relation to the bale opener 1. The inertia counteracts the direction of movement of the side cheek 15, 15 'moved by means of the rollers 53. When accelerating in the direction of movement B 2 , the position shown by solid lines is created, and when accelerating in the direction of movement B 1 , the position shown by dashed lines is created.

Der Abstand zwischen den vorgenannten Geraden ermöglicht, dieses Drehmoment auf die Laufschiene 14 quasi verzögert zu übertragen. Erst wenn sich die Seitenwange 16 ebenfalls bewegt, kommt die in Fahrtrichtung B1, B2 hintere, linke Führungsrolle 62' bzw. 62 mit der Laufschiene 14 in Kontakt, und die jeweils vordere Führungsrolle 62' bzw. 62 kann ihn verlieren. Die Antriebswirkung in Bezug auf die Laufschiene 14 ist dabei nicht beeinträchtigt.The distance between the aforementioned straight lines makes it possible to transmit this torque to the running rail 14 in a quasi-delayed manner. Only when the side cheek 16 also moves does the rear left guide roller 62' or 62 in the direction of travel B 1 , B 2 come into contact with the running rail 14, and the front guide roller 62' or 62 can lose it. The drive effect in relation to the running rail 14 is not affected.

Die Erfindung beschränkt sich ihrer Ausführung nicht auf das vorstehend angegebene bevorzugte Ausführungsbeispiel.The embodiment of the invention is not limited to the preferred exemplary embodiment given above.

Die Anzahl der Lauf- und Führungsrollen 53; 62, 62' und die Form derer Laufflächen 68 kann variieren.The number of running and guide rollers 53; 62, 62' and the shape of their treads 68 can vary.

Die Laufschiene 14 muss im Querschnitt nicht kreisrund sein. Die Laufschiene 14 kann auch nur in Kontaktbereichen zu den Rollen 53; 62, 62 zumindest abschnittsweise im Querschnitt konvex gekrümmt sein. Vorzugsweise folgt eine Außenumfangslinie im Querschnitt einer Umfangslinie einer Ellipse, vorzugsweise eines Kreises.The running rail 14 does not have to be circular in cross section. The running rail 14 can only be in contact areas with the rollers 53; 62, 62 be convexly curved in cross section at least in sections. Preferably, an outer circumferential line in cross section follows a circumferential line of an ellipse, preferably a circle.

Die Stifte 24 können mit einem Schraubgewinde versehen sein, sodass die aneinander zu befestigenden Laufschienensegmente 14a, 14b miteinander verschraubt werden. Alternativ dazu weisen die Stifte einen nicht kreisförmigen Querschnitt auf. Damit kann ein verdrehsicheres Anbringen der Segmente 14a, 14b aneinander und Ausrichten zueinander erreicht werden, ohne dass dafür gesonderte Schritte erforderlich sind. Anstelle jeweils eine Stifts 24 pro Verbindung können auch mehrere Stifte 24 vorgesehen sein, verbunden mit den gleichen Vorteilen.The pins 24 can be provided with a screw thread so that the running rail segments 14a, 14b to be fastened to one another are screwed together. Alternatively, the pins have a non-circular cross section. This allows the segments 14a, 14b to be attached to one another and aligned with one another in a rotation-proof manner without the need for special steps. Instead of one pin 24 per connection, several pins 24 can also be provided, with the same advantages.

BezugszeichenlisteReference symbol list

11
BallenöffnerBale opener
1010
AufstellrichtungInstallation direction
1111
MaschinengestellMachine frame
1212
AbnehmereinheitBuyer unit
1313
LaufschienenanordnungTrack arrangement
1414
LaufschieneRunning track
14a14a
Segment der LaufschieneSegment of the running rail
14b14b
Segment der LaufschieneSegment of the running rail
15, 15`15, 15`
erste Seitenwangefirst sidewall
16, 16'16, 16'
zweite Seitenwangesecond side cheek
1717
BodenFloor
1818
FußelementFoot element
1919
Schraubelementscrew element
2020
Durchgangslochthrough hole
2121
Gewindelochthreaded hole
2222
Schraubelementscrew element
2323
Durchgangslochthrough hole
2424
ZylinderstiftCylindrical pin
2525
AufnahmeflächeRecording surface
2626
AusgleichsplatteCompensation plate
2727
AbdeckelementCover element
2828
AufstellbereichInstallation area
2929
Leistungs- und SignalverbindungPower and signal connection
3030
KabelketteneinheitCable chain unit
3131
Abnehmerwalzetake-off roller
3232
StützwalzeSupport roller
3333
GitterrostGrating
3434
Saughaubesuction hood
3535
SpiralschlauchSpiral hose
3636
SaugluftschachtSuction air shaft
3737
Bedienpultcontrol panel
3838
AnschlusskastenJunction box
3939
Mitnehmertaker
4040
BandhebeeinheitBelt lifting unit
4141
Riemenbelt
4242
Umlenkrollepulley
4343
Schachtsegmentshaft segment
4444
Hohlkammerhollow chamber
4545
Abdeckbandmasking tape
4646
AbsaugeinrichtungSuction device
4747
Kanalchannel
48, 48'48, 48'
PortalprofilPortal profile
4949
QuerrichtungTransverse direction
5050
BrückenelementBridge element
5151
AntriebseinheitDrive unit
5252
elektrische Steuereinheitelectrical control unit
53, 53'53, 53'
LaufrolleRoller
54, 54'54, 54'
LaufrolleRoller
5555
WartungsfensterMaintenance window
5656
Zugmitteltraction means
5757
Endanschlagend stop
5858
DübelelementDowel element
5959
Aufnahmelochreceiving hole
6060
Stirnseitefront side
6161
BefestigungsöffnungFastening opening
62, 62`62, 62`
Führungsrolleleadership role
63, 63'63, 63'
Achseaxis
64, 64`64, 64`
Achseaxis
6565
Laufflächenabschnitttread section
6666
AntriebsabschnittDrive section
6767
Halterungbracket
6868
Laufflächetread
6969
Lagercamp
7070
Verbindungsabschnittconnection section
7171
Lagercamp
100100
Faserballenfiber ball

Claims (16)

  1. A bale opener (1)
    • for opening pressed fiber bales (100) deployed in a deployment direction (10):
    • comprising
    - a removal unit (12) that is arranged vertically variably at a machine frame (11) of the bale opener 17); and
    - the machine frame (11) that
    • is travelable in the deployment direction (10) so that
    o the fiber bales (100) can be traveled over by the removal unit (12); and
    o fiber material is removable from the fiber bales (100),
    • has a portal construction; and
    • is guided by means of rollers (53) on a running surface facing the rollers (53) of a running rail (14) of a basemounted running rail arrangement (13) facing the rollers (53),
    characterized in that
    • viewed along the longitudinal extent of the running rail (14), the cross-section of the running surface of the rollers (53) is curved in the direction of the rollers (53),
    • with every roller (53), viewed transversely to its axis of rotation, having a running surface (68) that has a smaller curvature than the running surface of the running rail (14).
  2. A bale opener (1) in accordance with claim 1, characterized in that the curvature of the running surface of the rollers (53) corresponds to a partial peripheral line of an ellipse or of a circle.
  3. A bale opener (1) in accordance with one of the preceding claims, characterized by guide rollers (62)
    • that are arranged rolling off at two outer surfaces of the running rail (14) that are disposed opposite one another and that are adjacent to the running surface of the rollers (53) at both sides; and
    • whose axes of rotation extend in parallel with one another and perpendicular to the axes of rotation of the rollers (53).
  4. A bale opener (1) in accordance with one of the preceding claims, characterized in that
    • the machine frame (11) has a first side wall (15) and a second oppositely disposed side wall (16);
    • the first side wall (15) has the rollers (53) and is guided on the running rail (14) by them; and
    • the second side wall (16) is guidable upright on a base (17) on which the running rail arrangement (13) is also arranged.
  5. A bale opener (1) in accordance with one of the preceding claims, characterized in that the running rail arrangement (13) has a plurality of foot elements (18) that
    • are formed for receiving the running rail (14); and
    • can be arranged on the base (17).
  6. A bale opener (1) in accordance with claim 5, characterized in that the running rail (14) is screwed to the foot elements (18).
  7. A bale opener (1) in accordance with claim 6, characterized in that screw elements (19) are provided for screwing the running rail (14) to the foot elements (18) that
    • are conducted through passage holes (20) in the foot elements (18); and
    • are screwed in threaded holes (21) in the running rail (14).
  8. A bale opener (1) in accordance with one of the claims 5 to 7, characterized in that
    • the foot elements (18) are screwed in the base (17) by screw elements (22); and
    • passage holes (23) are introduced in the foot elements (18) and the screw elements (22) are guided through them.
  9. A bale opener (1) in accordance with one of the claims 5 to 8, characterized in that
    • the foot elements (18) have two reception elements (25) aligned in an approximate V shape to one another; and
    • the running rail (14) has a linear contact to the reception surfaces (25).
  10. A bale opener (1) in accordance with one of the claims 5 to 9, characterized in that compensation plates (26) are formed and/or arranged on a lower side of the foot elements (18) remote from the running rail (14) such that irregularities in the base (17) are compensated so that the running rail (14) extends along a predefined extent.
  11. A bale opener (1) in accordance with one of the claims 5 to 10, characterized in that the running rail arrangement (13) has cover elements (27) that
    • are arranged at the foot elements (18); and
    • cover at least one lower side facing the base (17) and/or a laterally lower region of the running rail (14) facing the base (17).
  12. A bale opener (1) in accordance with one of the preceding claims, characterized in that the running rail (14) is formed from a plurality of segments (14a, 14b) that are connected to one another by means of pins (24).
  13. A bale opener (1) in accordance with one of the preceding claims, characterized in that the running rail (14) is manufactured from a construction steel.
  14. A bale opener (1) in accordance with one of the preceding claims, characterized in that the running rail (14) has a circular cross-section.
  15. A bale opener (1) in accordance with claim 15, characterized in that the cross-section of the running rail (14) has a diameter of 40 mm to 100 mm, preferably of 50 mm to 80 mm, and particularly preferably of 60 mm.
  16. A bale opener (1) in accordance with one of the preceding claims, characterized in that the rollers (53) are formed of plastic at least in the region of the running surface (68) of the rollers (53).
EP19708022.9A 2018-05-04 2019-02-14 Bale opener having an improved rail for guiding a machine frame Active EP3788192B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018110798.6A DE102018110798A1 (en) 2018-05-04 2018-05-04 Bale opener with an improved track for guiding a machine frame
PCT/EP2019/053687 WO2019211020A1 (en) 2018-05-04 2019-02-14 Bale opener having an improved rail for guiding a machine frame

Publications (2)

Publication Number Publication Date
EP3788192A1 EP3788192A1 (en) 2021-03-10
EP3788192B1 true EP3788192B1 (en) 2023-11-22

Family

ID=65598597

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19708022.9A Active EP3788192B1 (en) 2018-05-04 2019-02-14 Bale opener having an improved rail for guiding a machine frame

Country Status (4)

Country Link
EP (1) EP3788192B1 (en)
CN (1) CN112055763B (en)
DE (1) DE102018110798A1 (en)
WO (1) WO2019211020A1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4109875A (en) * 1976-06-21 1978-08-29 Continental Conveyor And Equipment Company Module feeding apparatus
US4507826A (en) 1982-10-13 1985-04-02 Keller Alex J Method and apparatus for opening fiber bales
DE3545686C3 (en) * 1985-12-21 1998-01-29 Truetzschler Gmbh & Co Kg Device for removing the material from bales of spun material placed in a row
DE3637578A1 (en) 1986-11-04 1988-05-11 Schubert & Salzer Maschinen DEVICE FOR THE AUTOMATIC OPENING AND MIXING OF FIBER BALLS
DE3734480A1 (en) 1987-10-12 1989-04-27 Schubert & Salzer Maschinen METHOD AND DEVICE FOR OPENING FIBER BALLS
DE3903239C1 (en) * 1989-02-03 1990-07-05 Hergeth Hollingsworth Gmbh, 4408 Duelmen, De
CH683528A5 (en) * 1991-07-22 1994-03-31 Truetzschler Gmbh & Co Kg Bale with a horizontal reciprocating opener.
TWM271741U (en) * 2005-03-18 2005-08-01 Ho Yuan Chiun Co Ltd Improved design of adjustable parallel rolling wheels
WO2013076739A2 (en) * 2011-11-18 2013-05-30 Lakshmi Machine Works Ltd. An improved holding arrangement for plucking head field of the invention

Also Published As

Publication number Publication date
WO2019211020A1 (en) 2019-11-07
CN112055763B (en) 2023-05-05
EP3788192A1 (en) 2021-03-10
CN112055763A (en) 2020-12-08
DE102018110798A1 (en) 2019-11-07

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