Classifications

• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
  • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
  • D01G15/02—Carding machines
  • D01G15/12—Details
  • D01G15/14—Constructional features of carding elements, e.g. for facilitating attachment of card clothing
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
  • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
  • D01G15/02—Carding machines
  • D01G15/12—Details
  • D01G15/32—Framework; Casings; Coverings

Definitions

• the invention relates to a textile machine for processing fiber material, comprising at least one roller arranged to rotate about a rotational axis, with which the fiber material can be processed, and side plates arranged on both sides of the roller, each of which is attached to an associated stationary base frame.
• the invention also relates to a method for operating a textile machine.
• textile machines for example in the form of a carding machine, typically comprise a plurality of rollers, each arranged to rotate about a rotational axis.
• Side plates are usually arranged on the end faces of these rollers.
• a uniform gap with a tolerance of +/- 0.2 mm should exist between the end face of a roller and a component arranged laterally to the roller in the form of a side plate. Due to the tolerance chain of the components involved and the corresponding manufacturing tolerances, it is necessary, according to the state of the art, to individually adapt the components involved to one another, i.e., to machine at least one of the two components during assembly.
• the machining described above to compensate for existing irregularities in a side plate has the disadvantage that the assembly of this component of a textile machine involves increased effort. Furthermore, if the components change, e.g., due to settling during transport, readjustment is not easily possible.
• a textile machine for processing fiber material comprising at least one roller arranged to rotate about an axis of rotation, with which the fiber material can be processed, and side plates arranged on both sides of the roller, each of which is attached to an associated base frame.
• the invention is based on the object of simplifying a textile machine with regard to the attachment or adjustment of a side plate adjacent to a front side of a roller and also of optimizing the ongoing operation of a textile machine.
• a textile machine is used for processing fiber material and comprises at least one roller rotatable about a rotational axis, with which the fiber material can be processed, and side plates arranged on either side of the roller, each of which is attached to an associated base frame.
• the base frame can be fixed to the floor or a machine frame or machine frame, or can be designed to be movable relative to the floor or machine frame.
• the invention includes the technical teaching that at least one of the side plates is fixedly mounted on its associated base frame, and that at least one actuator interacting with the base frame is associated with this side plate.
• a tensile or compressive force can be applied in interaction with the base frame in the direction of the roller's rotation axis, thereby changing the position of the side plate relative to the end face of the associated roller and adjusting the gap between the side plate and the opposite end face of the roller to a predetermined target value.
• the invention is based on the essential finding that a change in the distance of the side plate relative to the end face of an associated roller, and thus also the adjustment of the gap between the side plate and an adjacent end face of a roller of the textile machine, is achieved solely by actuating at least one actuator associated with the side plate, namely by generating a tensile or compressive force exerted on the side plate in interaction with the base frame.
• actuating at least one actuator associated with the side plate namely by generating a tensile or compressive force exerted on the side plate in interaction with the base frame.
• the mobility of the side plate on the base frame is the prerequisite for axially aligning the side frame so that the lower line of the side frame serves as the target distance from the roller.
• the prerequisite for adjusting the side frame at all other points is that it is firmly connected to the base frame at its lower edge.
• the lower edge of the side frame on or with the The base frame is the pivot point for aligning the side frame with its surface facing the front of the roller.
• the side frame must therefore be flexible and able to bend if necessary.
• side plate is to be understood as synonymous with a “side frame.”
• two actuators can be assigned to the side plate, with which the position of the side plate relative to the side surface of the associated roller can be variably adjusted.
• This also makes it possible - if necessary - to exert torsional forces on the side plate in the direction of the roller's rotational axis, thus achieving an opposite adjustment, i.e., a kind of twisting of the side plate, in order to precisely adjust the gap between the side plate and the adjacent end face of the roller along the entire circumference of the side plate to the predetermined target value.
• one actuator preferably two such actuators, is/are (each) designed as a screw. It is important here that such a screw is accessible from an outer side of the side plate and can be actuated accordingly from this side.
• an operator can exert a tensile or compressive force on the side plate in interaction with the base frame, as explained, in order to adjust the gap between the side plate and the adjacent end face of the roller to a predetermined target value.
• At least one actuating element can also be designed as a pneumatic or hydraulic actuating cylinder. It is expedient for such an actuating cylinder to be connected in a suitable manner to the pneumatic or hydraulic circuit of the textile machine. This actuating cylinder can be actuated automatically, if necessary even during ongoing operation of the textile machine, without any potential danger to the operator.
• control elements can alternatively be designed as controllable actuators that have sufficient positioning accuracy and the necessary force, and can be fixed in position either by themselves or by means of auxiliary means.
• an actuator can be designed as a piezo element, an electric actuator, or a pneumatic cylinder or control element.
• a measuring device can be provided, preferably adjacent to an end face of the roll, by means of which the distance or gap between the side plate and the adjacent end face can be measured or determined.
• This measuring device has a signal connection to a processor unit, to which an actuator in the form of an aforementioned actuating cylinder can also be connected. The data determined by the measuring device regarding the distance or gap between the side plate and the adjacent end face of the roll are then transmitted to the processor unit.
• the aforementioned automatic adjustment of the gap formed between the side plate and an adjacent end face of the roller by adjusting or actuating an adjusting cylinder can also be performed during ongoing operation of the textile machine according to the invention. This ensures that during ongoing operation of the textile machine, for example, due to heating or other disturbances, the gap between the side plate and the adjacent end face of a roller does not change inadmissibly, but always assumes the predetermined target value or remains set to it.
• the invention also provides a method for operating a textile machine, which may be the textile machine according to the invention explained above.
• this method provides that at least one side plate is arranged adjacent to an end face of a roller arranged to rotate about a rotational axis for processing fiber material, wherein the side plate is movably attached to an associated base frame and a gap between the side plate and the adjacent end face of the roller is continuously measured, wherein an actuator assigned to the side plate and interacting with the base frame exerts a tensile or compressive force on the side plate and is controlled in a regulated manner in order to thereby set the gap between the side plate and the adjacent end face of the roller to a predetermined target value.
• the actuating element can expediently be designed as a pneumatic or hydraulic actuating cylinder. This makes it possible for the above-mentioned method according to the invention to easily and without endangering an operator to adjust the gap between the side plate and a adjacent end face of the roller if necessary or to adjust it to the predetermined target value.
• the textile machine with which the above-mentioned method can also be carried out can be designed in the form of a carding machine or carding machine.
• FIG. 1 to 6 Preferred embodiments of a textile machine 1 according to the invention, which serves for processing fiber material or for its production, and a method for operating such a textile machine 1 are explained.
• Identical features in the drawings are each provided with the same reference numerals. It should be understood that the drawing is merely simplified and, in particular, is not drawn to scale.
• the Fig. 1 shows a schematically simplified perspective view of a part of the textile machine 1 according to the invention, which in the Fig. 6 is shown again in a schematically simplified side view.
• the textile machine 1 comprises at least one roller 2 which rotates about an axis of rotation D (cf. Fig. 6 ) is rotatably arranged.
• this roller 2 fiber material can be processed or produced in a known manner.
• side plates 3 are arranged, each of which is attached to an associated base frame 8.
• the base frame 8 can be fixed on a floor or machine frame, or be designed to be movable on a floor or machine frame.
• Fig. 2 shows the side plate 3 in a simplified schematic side view.
• the side plate 3 is formed with a central recess 6.
• An upper region of the side plate 3 extends annularly around the recess 6.
• two inner flanks 7 of the side plate 3 extend vertically downward, with an outer edge 4 of the side plate being flattened in a lower region thereof.
• Fig. 3 shows the base frame 8 in a simplified schematic side view.
• a raised portion 10 is formed in a central region thereof, which, in the embodiment shown here, is rectangular in shape—as seen in a plane orthogonal to the rotational axis D of the roller 2.
• the roller 2 is fixed with its bearing housing on the base frame 8.
• the bearing housing and thus also the roller 2 are designed to be adjustable to a limited extent on the base frame 8, for example, to interact with another roller at a constant distance across the entire working width of the carding machine or carding machine.
• the base frame 8 is fixed in this embodiment.
• the base frame 8 and the roller 2 can also be arranged so that they can be moved relative to a floor or machine frame.
• the rectangular elevation 10 of the base frame 8 includes lateral wall areas 11 to the left and right of it.
• Reference points R are provided in the two upper corner areas of the elevation 10. These reference points R have, as shown in the illustration of Fig. 3 a relatively large distance from each other. The significance of these reference points R with regard to the interaction with actuators will be explained separately below.
• Fig. 4 shows a schematically simplified side view of the side plate 3 according to Fig. 2 and the base frame 8 according to Fig. 3 when these components of the textile machine 1 are mounted together.
• Fig. 1 and Fig. 4 clarify with regard to the side plate 3 that reinforcing ribs 5 are provided on its lower outer edge 4, along the vertical inner flanks 7 and along an arc segment adjacent to the central recess 6.
• the side plate 3 is mounted on or on the base frame 8 in such a way that the outer edge 4 of the side plate 3, which is flattened in the lower area thereof as explained, is brought into contact with the upper side 9 of the base frame 8 or sits thereon, namely to the left and right of the central elevation 10.
• the reinforcing ribs 5, which are provided on the vertical inner flanks 7 of the side plate 3, are located adjacent to the lateral wall areas 11 of the central elevation 10 of the base frame 8.
• the lower flattened outer edge 4 of the side plate 3 is fixedly connected to the base frame 8 and forms the pivot point around which the side plate 3 is adjusted to the front side of the roller 2 by means of the adjusting elements 12.
• the central recess 6 of the side plate is located above the central elevation 10 of the base frame 8. This makes it possible for additional components of the textile machine 1, which may be adjacent to the roller 2 and aligned with its rotational axis D, to have space there.
• An essential feature of the present invention is, among other things, that in the assembled state of the textile machine 1, a gap 13 is formed between the side plate 3 and an adjacent end face S of the roller 2. This gap 13 is shown in the schematically simplified side view of Fig. 5 to recognize.
• Two actuators 12 are assigned to the side plate 3, which can be designed in the form of screws.
• the Fig. 1 The adjusting elements 12 shown in the form of screws are screwed into the respective reinforcing ribs 5 of the side plate 3 and interact with their free ends with a surface of the base frame 8 at its central elevation 10.
• the above-mentioned screws 12 are positioned in the reinforcing ribs 5 of the side plate 3 such that their free ends come into contact with a surface of the central elevation 10 of the base frame 8 at the above-mentioned reference points R.
• the screws 12 By operating the screws 12, it is possible to exert a tensile or compressive force on the side plate 3 in interaction with the base frame 8 and in the direction of the rotational axis D of the roller 2. In other words, the side plate 3 can be pushed or pulled towards the roller 3 in the axial direction by operating the screws 12. This then achieves that the gap 13, ie a distance of the side plate 3 from the adjacent end face S of the roller 2 and can be adjusted to a predetermined target value.
• this position of the side plate 3 can be fixed via the screws 12 and, if necessary, also additionally pinned (via pin elements not shown).
• this actuating element 12 can alternatively also be designed in the form of an actuating cylinder.
• two actuating cylinders (instead of the screws) can thus be attached to each of the two reinforcing ribs 5 of the side plate 3, which act on the central elevation 10 of the base frame 8 at the aforementioned reference points R in the same way as already explained above. Accordingly, by actuating such actuating cylinders 12, it is possible to specifically change the distance between the side plate 3 and the end face of the adjacent roller 2 in order to thus set the gap 13 to a predetermined target value.
• the mobility relative to the side plate 3 on the base frame 8 is the prerequisite for axially aligning the side frame 3 such that the lower line of the side frame 3 serves as the target distance from the roller.
• the prerequisite for adjusting the side frame 3 at all other points is that it is firmly connected to the base frame 8 at its lower edge (lower, flattened outer edge 4).
• the lower edge of the side frame 3 on or with the base frame 8 is therefore the pivot point for aligning the side frame 3 with its surface toward the front of the roller 2.
• the side frame 3 must therefore be inherently flexible and, if necessary, also be able to bend.
• actuating cylinders 12 can be connected to a pneumatic or hydraulic circuit of the textile machine 1.
• the side plate 3 is fixedly mounted on the associated base frame 8. This is a prerequisite for the actuation of the adjusting elements 12 to result in a tilting or adjustment of the side plate 3 relative to the end face of the roller 2, thus enabling the adjustment of the gap 13 to a predetermined target value.
• two actuators 12 are attached to the side plate 3, it is also possible, by means of a different actuation of these two actuators 12, to clamp the side plate 3 or to exert a torsional force thereon, with which a type of twisting of the side plate 3 is achieved in a plane orthogonal to the axis of rotation D of the roller 2. This ensures a highly precise adjustment of the gap 13 to a predetermined target value in the area of the entire front side of the roller 2.
• the textile machine 1 can, according to a further embodiment, be equipped with at least one measuring device 14, which is preferably arranged adjacent to the gap 13.
• a measuring device 14 is symbolized only by a rectangle.
• measuring devices 14 can then be conveniently arranged along the circumference of the roller 2 and preferably adjacent to the gap 2.
• the measuring principle of this measuring device 14 can be purely optical, or alternatively based on laser technology or radar, as well as on a capacitive or sensitive measuring method.
• the measuring device 14 is expediently connected to a processor unit 15 in terms of signal technology, which in the representations of Fig. 1 and Fig. 5 each symbolized by a rectangle.
• the signal path between the measuring device 14 and the processor unit 15 is shown in the Fig. 1 and Fig. 5 each symbolized by dotted lines.
• the data measured by the measuring device 14 regarding the gap 13, which is an "actual value" of the gap 13 or the distance of the side plate 3 from the adjacent end face of the roller 2, are then transmitted to this processor unit 15 and can then be compared therein with a predetermined target value.
• the processor unit 15 can be equipped with a display unit or the like (not shown) with which a measured actual value of the gap 13 and any deviation from a predetermined target value can be displayed. If the textile machine 1 according to the invention is configured with an actuator 12 in the form of a screw, an operator can then use this display to determine whether the screw has been sufficiently actuated or actuated to adjust the side plate 3 in the desired manner relative to the end face of the adjacent roller 2.
• an actuating element 12 in the form of a pneumatic or hydraulic cylinder, preferably two such actuating cylinders 12, are signal-connected to the processor unit 15 and can be controlled thereby.
• a suitable control or actuation of at least one actuating cylinder 12 is possible by the processor unit in order to then realize a displacement or movement of the side plate 3 relative to the end face of the adjacent roller 2 and thus set the gap 13 to a predetermined target value.
• the aforementioned monitoring of the gap 13 by means of the measuring device 14 and the resulting control of at least one actuating cylinder 12 can also be carried out according to the invention during ongoing operation of the textile machine 1, preferably in the form of a closed-loop control. This ensures that during ongoing production, the gap 13 does not change from a set, predetermined setpoint, and that this setpoint is always maintained.
• the above-described side plate 3 and its adjustability with respect to an end face of an adjacent roller 2 are provided on both sides of the roller 2. This counteracts a possible operating situation of the textile machine 1 according to the invention in which, on one side of the roller 2, the gap 13 between a side plate 3 and the adjacent end face of the roller 2 needs to be enlarged, but on the other side of the roller 2, the gap 13 needs to be reduced.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Treatment Of Fiber Materials (AREA)

Applications Claiming Priority (1)

Publications (2)

Family

ID=85703571

Family Applications (1)

Country Status (3)

Families Citing this family (1)

Family Cites Families (2)

• 2022
  • 2022-06-14 DE DE102022114946.3A patent/DE102022114946A1/de active Pending
• 2023
  • 2023-03-16 EP EP23162264.8A patent/EP4293147B1/de active Active
  • 2023-03-16 PL PL23162264.8T patent/PL4293147T3/pl unknown

Also Published As

Similar Documents

Legal Events