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BR-112023012514-B1 - Textile machine, in particular, a cleaner for cleaning fibrous materials, such as cotton fibers.

BR112023012514B1BR 112023012514 B1BR112023012514 B1BR 112023012514B1BR-112023012514-B1

Abstract

DEVICE FOR OPENING FIBER MATERIAL AND TEXTILE MACHINE EQUIPPED THEREOF The invention relates to a device in or within a textile machine (1) having at least one opening cylinder (61) and for each opening cylinder (61), a grid (100) with individual grid bars (107). The grid bars (107) of each grid (100) are arranged, in essence, parallel and in pairs at predetermined distances and/or angular positions from each other. The device has an adjustment section (101, 103, 104), which is configured to adjust, during actuation, at least a portion of the individual grid bars (107), such that their distances or angular positions in pairs from each other are changed together in different segments. Each segment comprises a respective portion of the grid bars (107) adjustable by means of the adjustment section (101, 103, 104). The invention also relates to a textile machine (1) comprising this device.

Inventors

  • Peer Duschneit

Assignees

  • Trützschler Group SE

Dates

Publication Date
20260310
Application Date
20211210
Priority Date
20201222

Claims (13)

  1. 1. Textile machine (1), in particular, a cleaner for cleaning fibrous materials, such as cotton fibers, a stage cleaner or a feeder, with a device that: • features - at least one opening cylinder (61), - for each opening cylinder (61) a grid (100) with individual grid bars (107), which are essentially arranged parallel and in pairs at predetermined distances and/or angular positions from each other, as well as - an adjustment section (101, 103, 104), configured to adjust at least a part of the individual grid bars (107) during operation, such that their distances or angular positions in pairs from each other are changed together and in segments differently, • wherein each segment comprises a respective part of the grid bars (107) adjustable by means of the adjustment section (101, 103, 104), • characterized in that at least some of the adjustable grid bars (107) of at least one of the segments, - are arranged stationary in relation to the rest of the textile machine (1) and can rotate freely along their respective longitudinal extension respectively at both ends at two corresponding articulation points of the textile machine (1), as well as - are configured, during a rotation, to change their distance or their angular position in relation to at least one directly adjacent grid bar (107), and • wherein, by means of the adjustment section (101, 103, 104) the adjustment is configured to rotate some adjustable grid bars (107).
  2. 2. Textile machine (1) according to claim 1, characterized in that the adjustable grid bars (107) • have an engagement section (103a) at one end and • the adjustment is made, because the adjustment section (101, 103, 104) has an adjustment element (101), which contains a corresponding engagement section (101d) for each adjustable grid bar (107), configured in such a way that they are engaged with the engagement section (103a) of the corresponding grid bar (107), such that during the actuation of the adjustment section (101, 103, 104) the adjustment element (101) is moved in such a way that its engagement section (101d) causes the adjustment of the corresponding grid bar (107).
  3. 3. Textile machine (1) according to claim 2, characterized in that the engagement section (103a) of at least one adjustable grid bar (107) is formed into a lever (103), which extends away from at least one grid bar (107), transversely with respect to the axis of rotation of at least one grid bar (107).
  4. 4. Textile machine (1) according to claim 2 or 3, characterized in that the engagement section (101d) of at least one grid bar (107) or of the adjustment element (101) is formed as a recess (101d), and the corresponding engagement section (103a) of the adjustment element or of at least one grid bar (107) is formed by means of a projection (103a).
  5. 5. Textile machine (1) according to claim 4, characterized in that at least one shoulder (103a) • is shaped like a spherical head, or has a circular cross-section at its end facing the corresponding recess (101d), viewed in the direction of the axis of rotation of the corresponding grid bar (107) and, furthermore, • is arranged by engaging the corresponding recess (101d).
  6. 6. Textile machine (1) according to claim 4 or 5, characterized in that the recess (101d) of at least one grid bar (107) or of the adjusting element (101) is shaped as an oval hole.
  7. 7. Textile machine (1) according to claim 6, characterized in that the oval hole (101d) is open in the direction of the corresponding engagement section (103a) of the adjustment element or grid bar (107).
  8. 8. Textile machine (1) according to claim 6 or 7, characterized in that the recess (101d) extends in the direction of the center of rotation of the corresponding opening cylinder (61).
  9. 9. Textile machine (1) according to one of claims 4 to 8, characterized in that • at least two of the shoulders (103a) have different distances from the center of rotation of at least one opening cylinder (61) and/or • the shoulders (103a) of a pair of shoulders (103a) directly adjacent to each other have a different distance from the shoulders (103a) of another pair of shoulders (103a) directly adjacent to each other.
  10. 10. Textile machine (1) according to one of claims 2 to 9, characterized in that the adjustment element (101) • is movable in the remainder of the textile machine (1) along a predetermined displacement path, transverse, in essence, to the rotation axes of the adjustable grid bars (107), and • is disposed in the remainder of the textile machine (1) and can be fixed in a respective adjustment position.
  11. 11. Textile machine (1) according to claim 10, characterized in that mobility is achieved by the fact that • the remainder of the textile machine (1) or the adjustment element (101) has oval holes (101a) and • the adjustment element (101) or the remainder of the textile machine (1) has corresponding protrusions (102), which • protrude towards a corresponding oval hole (101a) and • are configured in such a way that they are engaged with a corresponding oval hole (101a), in such a way that they are disposed in the corresponding oval hole (101a), and can move along the path of travel.
  12. 12. Textile machine (1) according to claim 10 or 11, characterized in that the fastening capability is formed • by means of a fastenable drive means (104), which is engaged with the adjusting element (101) dragging that element along the travel path, and/or • configured by means of a fastening element (102) formed stationary in the adjusting element (101), to be fastened and released again in the rest of the textile machine (1).
  13. 13. Textile machine (1) according to one of the preceding claims, characterized in that the adjustment section (101, 103, 104) has a drive means (104) that is actively connected to the motion with the adjustable grid bars (107).

Description

Description [0001] The invention relates to a device for cleaning fiber material of foreign materials, as well as to a textile machine equipped with such a device, for example, in the form of a cleaner. [0002] Cleaning devices of this type are quite well known. They comprise beater cylinders or opening cylinders, which rotate in a chamber that is essentially completely closed. In this case, a grid with several grid bars forms part of the chamber's delimitation. By virtue of the shape and rotation of the respective opening cylinder, blows are given to the incoming material (fiber material with foreign material). This leads, on the one hand, to a fluffing of the incoming fiber material (fiber flakes). On the other hand, the resulting centrifugal force transmitted or acting on the material leads to the fact that the material that has just been fluffed is thrown against the grid bars, through whose gaps heavy (foreign) materials are ejected from the chamber. In this case, the grid bars have an edge. In order to influence the cleaning achievable with them, it is possible to change the grid bars in their rotation position, so that especially the angle of incidence of the bar edges and also the gap between individual pairs of directly adjacent grid bars can be changed in relation to each other. [0003] European patent document EP 0 381 859 A1 discloses a mechanism for adjusting the distance between grid bars and the opening cylinder by altering their angle of incidence. In this case, several adjustment devices, independently actuated, can be used as adjustment sections to adjust several groups of grid bars together and identical to each other. A disadvantage is the resulting construction and/or control technology expense. Another disadvantage is that within the respective group, the grid bars are adjusted identically to each other, consequently making degrees of freedom and adaptations to the respective grid position impossible. Aside from this, this possibility offers only a limited number of grid bar groups that can be adjusted differently, only in terms of space. The grid bars cannot be adjusted separately. [0004] Universal patent document WO 2006/105681 A1 discloses a mechanism for the simultaneous and identical adjustment of several grid bars by means of rotation, linked with the same disadvantages. [0005] The purpose of the invention is to combat the aforementioned disadvantages. [0006] This objective is resolved by the subject matter of the independent claims. Advantageous improvements are indicated in the subordinate claims. [0007] According to the invention, a device is provided in or within a textile machine, which has at least one opening cylinder and, for each opening cylinder, a grid with individual grid bars. The grid bars of each grid are essentially arranged parallel and in pairs at predetermined distances and/or angular positions relative to each other. In addition, the device has an adjustment section. The adjustment section is configured to adjust, during actuation, at least a portion of the individual grid bars, at least of one grid, such that their distances or angular positions relative to each other are changed together in different segments. Each segment comprises a respective portion of the grid bars adjustable by means of the adjustment section. This makes it possible to adjust each grid bar of a segment differently in relation to the other grid bars of the same segment by means of a single adjustment section. This allows the grid bars of the respective segment to be adjusted to their respective position in the segment and therefore in the grid (with a grid formed by means of the grid bars), and this without additional elements such as another adjustment section. Degrees of freedom are increased while expenditure and costs remain low. [0008] Preferably, at least some adjustable grid bars of at least one segment are arranged stationary relative to the rest of the textile machine, and can rotate freely along their respective longitudinal extension respectively at both ends at two corresponding articulation points of the textile machine. Therefore, they can be rotated around their longitudinal axis. In this case, during rotation these grid bars are configured to change their distance or their angular position to at least one directly adjacent grid bar. According to the invention, the adjustment by means of the adjustment section is configured to rotate some adjustable grid bars. This is a particularly simple and economical possibility of adjusting the grid bars differently from each other. Last but not least, an already existing grid bar arrangement can also be adapted by simply placing the grid bars to be adjusted with their engagement protrusions with an adjustment section according to the invention. [0009] Preferably, adjustable grid bars have an engagement section at one end. The adjustment is made insofar as the adjustment section has an adjustment element containing a corresponding enga