EP3331792B1 - Device for filling a can with a sliver - Google Patents

Description

The invention relates to a device for filling a can with sliver, which is used in a spinning preparation plant, e.g. Track, carding or combing machine is produced, wherein the device is adapted to receive an empty and a full can at the same time, comprising a storage head with a turntable.

In the known state of the art, the sliver supplied by the spinning preparation machine is taken over by a so-called sliver deposit. The sliver is guided via guide aids via a sliver funnel to a calender roll pair, which deposits the sliver on a turntable in the waiting cans. If the jug is filled, the sliver is cut through, at the same time the full jug is removed and an empty jug is nachgeschoben. The can changers have linear or rotary can changers, which have different advantages depending on the can shape and size, as well as the space available. In contrast to rotary can changers, linear can changers have a very compact design and are used where the concept of the spinning preparation machine only allows for a narrow installation space.

When the can is changed, the round cans are moved and change positions. For this purpose, the filing speed must be reduced as a rule, since otherwise fiber material is conveyed between the round cans. However, from the customer's point of view, a quick change of the round cans is desirable, so that the production of the card is not worth mentioning must be reduced. Furthermore, fluctuations in the weight of the band occur during large changes in the delivery speed, which can adversely affect the technological result up to the end product. However, a quick change of the round cans is associated with various difficulties. The round cans have no consistently stable structure and can therefore be damaged by high forces. On the other hand, the round cans differ from customer to customer, which makes the adaptation of recordings difficult. Furthermore, the round cans have a high weight in the filled state, which causes high forces during short change times during acceleration.

In the known devices, the turntable (storage head) remains permanently stationary. The round cans are moved below the turntable, the rotary can changer on a semicircular path and the Linearkannwechsler on a straight line. With the help of the can changer provided in a reserve position empty round can for filling with sliver in a filling position below the turntable and after filling a sliver filled with sliver can be brought into a discharge position from the filling position below the turntable.

The DE 10116944 A1 discloses a can changer for rectangular cans in which the tray head is slidably formed. Both band deflections are arranged stationary.

When moving the turntable within a frame, the leadership of the sliver changed from the card to the can changer. Especially with cans with a large diameter, the angle at which the sliver enters the turntable via the guide rollers changes. If the sliver is not guided perpendicular to the roll axis, it may run up a lateral slope of the guide roller, which can lead to a jumping off of the sliver from the guide roller and thus to a band break.

The object of the invention is the development of a device for linear change of a pot. In particular, the device should be structurally simple and ensure a safe operation of the sliver in a sliding operation of the turntable.

This object is solved with the features of claim 1, with a device for filling a can with sliver, which is used in a spinning preparation plant, e.g. Track, carding or combing machine is produced, wherein the device is adapted to receive an empty and a full can at the same time, comprising a storage head with a turntable.

The invention includes the technical teaching that at least the turntable is slidably mounted, wherein the device has at least one guide device which is adapted to the course of the sliver during the sliding operation of the turntable.

The guide device, which adapts to the course of the fiber sliver, allows only a displacement of the turntable or storage head for large cans (800 - 1200 mm diameter) without the sliver jumps off the guide roller and there is a risk of a band break. In this case, the guide device is arranged on the turntable or on the storage head and also makes their movement with.

In the known changer for rectangular cans, in which the turntable is arranged to be movable within a frame, the guide device is connected to the turntable so that it also performs the movement.

In the embodiment shown here, in which the turntable is integrated in the storage head and the storage head is movably arranged on a rear wall of the can changer, the guide device is arranged on the storage head and moves simultaneously with this. For this purpose, the storage head is preferably stored exclusively on a rear wall of the can changer, whereby a can changer is formed, which is completely accessible from three sides.

In a preferred embodiment, the guide device has at least two guide rollers, wherein at least one guide roller is arranged pivotably. In the case of large deflection angles, it may be expedient to make also the second guide roller, which is arranged close to the turntable, pivotable, the pivot angle of which may be smaller than the pivot angle of the guide roller, which is arranged between the first guide roller and the carding machine.

Characterized in that the pivoting movement of the guide roller is carried out continuously with the sliding movement of the turntable, a perfect alignment of the sliver is achieved on the guide roller over the entire travel of the turntable or the storage head.

In this case, the pivoting movement of the guide roller takes place such that the sliver is always guided perpendicular to a rotation axis of the guide roller. The sliver thus always runs in the area of the guide roller, which has the lowest peripheral speed

In a preferred embodiment, the axis of rotation of the guide roller is arranged on a horizontal axis, which is pivotable or rotatable is trained. Thus, the guide roller pivots in a circular arc about the horizontal axis.

The horizontal axis can be pivoted or rotated by means of eccentric point of attack mechanically, motorically, hydraulically or pneumatically.

In this case, the pivoting movement of the guide roller is coupled to the displacement movement of the turntable and / or the storage head. With the beginning of the sliding movement of the storage head is simultaneously a continuous pivotal movement of the guide roller, which ends with reaching the end position of the storage head. Thus, a very gentle tape guide is achieved, in which only at low accelerations, the sliver is placed in a new leadership position.

Fig. 1

eine perspektivische Darstellung des erfindungsgemäßen Kannenwechslers mit zwei Kannen;

Fig. 2

eine perspektivische Darstellung des Kannenwechslers mit einem verschobenen Ablagekopf;

Fig. 3

eine perspektivische Darstellung des Kannenwechslers mit einer Karde;

Fig. 3a

eine vergrößerte Darstellung auf den Ablagekopf mit der Führungsvorrichtung;

Fig. 4

eine perspektivische Darstellung des Kannenwechslers mit einer Karde;

Fig. 4a

eine vergrößerte Darstellung auf den Ablagekopf mit der Führungsvorrichtung;

Fig. 5

eine Detaildarstellung der Führungsvorrichtung;

Fig. 5a

eine weitere Detaildarstellung der Führungsvorrichtung.

Further, measures improving the invention will be described in more detail below together with the description of a preferred embodiment of the invention with reference to FIGS. Show it:

Fig. 1

a perspective view of the can changer according to the invention with two cans;

Fig. 2

a perspective view of the can changer with a shifted storage head;

Fig. 3

a perspective view of the can changer with a card;

Fig. 3a

an enlarged view of the storage head with the guide device;

Fig. 4

a perspective view of the can changer with a card;

Fig. 4a

an enlarged view of the storage head with the guide device;

Fig. 5

a detailed view of the guide device;

Fig. 5a

a further detail of the guide device.

The can changer 1 after the FIGS. 1 to 2 essentially comprises a rectangular base plate 10, in which two can plates 11, 12 are rotatably arranged. The base plate 10 serves as a standing or moving surface for the cans, which are moved or transported transversely to the longitudinal direction of the base plate 10. The base plate 10 has substantially a size or length that is suitable to receive two cans side by side. In the presentation of the FIG. 1 on the left a full or to be filled jug 31 and right an empty jug 30. Each jug 30, 31 stands on its own rotatably driven can plate 11, 12, the drive is integrated in the base plate 10. Above the full or to be filled can 31, a storage head 13 with an integrated turntable 14 is arranged. Not shown sliver is performed, for example, from a card over the guide rollers 41 and 42 to an opening in the storage head 13 to the turntable 14, which rotates within the storage head 13. Due to the rotation of the full can 31 due to the rotating can plate 12 in combination with the rotation of the turntable 14, the sliver is deposited within the can 31 in the form of a cycloid. Below the storage head 13, a cover 15 is mounted, with which the upper open side of the pot 31 can be completely covered, so that especially at the end of the filling process, the sliver can not laterally between the storage head 13 and pot 31. The storage of the storage head 13 with the turntable 14 and the cover 15 takes place exclusively on the frame 18, which extends only on a single longitudinal side of the can changer 1. The can changer 1 thus has three completely open sides without supports, etc., and a rear wall, which is designed as a frame 18 and on which the storage head 13 including the turntable 14 and the cover 15 is arranged displaceably or movably. For this purpose, the frame 18 has at least two lateral supports 19a, 19b which are fastened to the base plate 10 in the region of the narrow end faces. Substantially perpendicular to the supports 19a, 19b, additional supports 20a, 20b are arranged on them, which form part of a rear wall for the can changer 1. This rear wall has a cladding 21, the other mechanical elements such as drive elements or Supply lines (power cable, exhaust, etc.) can cover. The cladding 21 serves, inter alia, as pinch protection for the operator when the storage head 13 moves horizontally. Below and above the panel 21 18 guides 25, 26 are arranged on the frame, which cooperate with bearings of a drive housing 22 to which the storage head 13 is attached.

In FIG. 1 the storage head 13 is positioned over the full or to be filled can 31. The empty can 30 can be moved during the filling process in the retraction or extension direction 32, 33.

If the pot 31 is filled, moves the storage head 13 (see Fig. 2 ) to a position over the empty can 30, so that the full can 31 can be removed and a new empty can can be positioned on the can plate 12. In the FIG. 2 is still an attached ramp 10a shown, over which the cans can be easily on the can plates 11, 12 retracted or extended.

For this purpose, the sliver is separated within the storage head 13. Simultaneously with the sliding movement of the storage head 13 in a position above the empty can 30 at least the guide rollers 42 pivoted such that the sliver always perpendicular to the axis of rotation (42d) on the guide rollers 41, 42 runs. This simultaneous pivoting of the guide roller 42 allows only the displacement of the storage head 13 with the turntable 14, otherwise the band could jump off the guide rollers, which in turn can lead to band breakage. The storage head 13 moves with the turntable 14 and the cover 15 horizontally to the base plate 10 along the guides 25 and 26, which are arranged on the frame 18. With the guides 25, 26 bearings interact, which are arranged on a drive housing 22.

Referring to the FIGS. 3 and 3a a card 2 a sliver 3 to the can changer 1, wherein on the storage head 13 of the can changer 1, a guide device 40 is arranged, which leads the sliver 3 via an opening to a turntable 14 which is disposed within the storage head 13. The guide device 40 comprises at least two guide rollers 41, 42, of which at least one guide roller 42 is arranged pivotably. The guide roller 41, which guides the sliver 3 in the turntable 14, is adjustable in this embodiment, but formed stationary. The guide roller 42, which is arranged between the guide roller 41 and the carding machine 2, is pivotable with its axis of rotation 42d so that the sliver 3 always runs almost perpendicular to the axis of rotation. In this illustration, the storage head 14 is above the left can 31, which is being filled. Since the card 2 is arranged approximately centrally to the can changer 1, the sliver 3 runs from the output of the card to the guide roller 42 to the top left. By rotating or pivoting the guide roller 42 about a horizontal axis 46b to the bottom left by about 20 ° to 30 ° is achieved that the sliver 3 is guided almost perpendicular to the axis of rotation 42d of the guide roller 41.

In the FIGS. 4 and 4a is the storage head 14 on the right can 30, which is being filled. The left can 31 is filled and can be removed and replaced with an empty can. By the process of the storage head 14 to the right to the new position, the sliver 3 runs from the stationarily arranged card 2 to the top right to the guide roller 42. By a rotation or pivoting of the guide roller 42 about a horizontal axis 46b to the top left by about 20 ° to 30 ° is achieved, that the sliver 3 is guided almost perpendicular to the axis of rotation 42d of the guide roller 42.

The Figures 5 and 5a show two guide rollers 41, 42 which are constructed as so-called double cone, wherein two cones 41a, 41b are connected to each other at their tip and form there a guide groove 41c. Due to the different peripheral speed along the axes of rotation 41d, 42d of the guide rollers 41, 42, a guided sliver is always guided to where the peripheral speed is lowest, ie in the region of the guide grooves 41c, 42d. When moving the turntable 14, the sliver, which is supplied by a stationary card arranged, obliquely directed to the guide roller 42 and thus passes over the side surface of a cone 42a on the second guide roller 41. In this case, the sliver can pass over the edge of the cone 42a, so jump off the guide roller 42 and a band break arise.

In this embodiment, the guide roller 41 is fixed with its axis of rotation 41d to an all-round adjustable frame 43. The frame has a pivotable and height-adjustable vertical axis 43a, and a horizontal axis 43b attached thereto, which engages around the axis of rotation 41d of the guide roller 41 at its end. On the horizontal axis 43b, in turn, a fastening 44 for a sensor 45 is arranged, with which a breakage of the sliver can be determined. The guide roller 41 is in this embodiment adjustable in all directions, but arranged stationary, so not pivotable with the sliding movement of the turntable 14. The guide roller 41, like the guide roller 42, may also be designed to be pivotable when the displacement of the turntable 14 increases, for example, when using cans with a larger diameter. The arrangement of the guide rollers 41, 42 for card 2 and the course of the sliver 3 is crucial.

The guide roller 42 is disposed on a frame 46 having at least a vertical axis 46a and a horizontal axis 46b. In the FIG. 5 a separate vertical axis 46a is hidden by the fairing 48. In FIG. 5a the panel 48 simultaneously serves the vertical axis 46a. The guide roller 42 also has an axis of rotation 42d which is fixed to the horizontal axis 46b. This horizontal axis 46b is pivotally mounted so that the guide roller 42 can rotate about the horizontal axis 46b when the turntable 14 is moved. The pivoting movement of the horizontal axis 46b can be motorized, by means of pneumatic or hydraulic cylinders or mechanically. In this embodiment, a pneumatic adjustment is shown in which a arranged behind a panel 48 pneumatic cylinder 47 eccentrically engages the horizontal axis 46b. This can be done via a on the horizontal axis 46b non-rotatably arranged disc, which cooperates with the pneumatic cylinder 47.

The pivoting movement is triggered by the movement of the turntable 14, so that the pivoting movement takes place continuously with the movement of the turntable 14. The pivoting movement is thus very slow, which is advantageous for the leadership of the sliver. A jerky pivoting of the guide roller 42 could also cause the sliver to jump off the guide roller 42. The pivoting movement can be triggered by the control of the drive for moving the turntable 13, alternatively by a valve in the pneumatic or hydraulic circuit or by a mechanical stop.

Depending on the size of the cans, the pivotal movement of the guide roller 42 can be up to 45 ° up or down, preferably up to 30 ° up or down. The pivoting movement of the guide roller 42 takes place in such a way that the sliver 3 runs as perpendicular as possible to the axis of rotation 42d of the guide roller 42. Since the pivoting movement continuously with the movement of the Turntable 14 is ensured, even during the can change ensures that the sliver in each position of the turntable is perpendicular to the axis of rotation 42d of the guide roller 42.

In the embodiment of Figure 1 to 5a the guide rollers 41, 42 are arranged on the movable storage head 13. It is of course possible that the guide rollers 41, 42 can also be arranged on the turntable 14, which can be arranged to be movable within a fixed storage head or frame. For larger travel paths of the turntable 14, it may be useful to arrange the guide roller 41 pivotable about its axis of rotation 41d.

In contrast to the prior art, in this embodiment, not the turntable 14 is moved horizontally within the storage head 13, but the entire storage head 13, which significantly facilitates the extension of the full pot 31, in particular a crowded jug. Characterized in that the storage head 13 is movably mounted on a frame 18 which extends perpendicular to only one side of the base plate 10, there is a can changer, the three sides and about half of the top - when the storage head 13 has been moved - completely is accessible.

Due to the displacement of the drive components of a displacement device of the cans to an integrated solution in the rear wall for moving the storage head results in a flat-built can changer, in which the can almost at ground level in the can changer retract and no major differences in height when driving in and out has to overcome , This also allows a minimum distance from the top can edge to the storage tray are maintained. Alternatively, however, the can change with the base plate can be easily integrated into the hall floor to eliminate the approximately 5 cm difference in height from the hall floor to the base plate.

Another significant advantage of the invention is that the storage head can be moved at a higher speed, since its mass is significantly lower than the mass of a filled pot. Due to the shorter changeover time from the filling of a full to an empty can, the card during the change time can be driven at a higher speed than in the prior art, since the speed produced by the card sliver does not have to be lowered significantly in speed. The productivity of the card increases thereby.

reference numeral

1

can changer

2

teasel

3

sliver

10

baseplate

10a

ramp

11

can plate

12

can plate

13

storage head

14

turntable

15

cover

18

frame

19a, b

support

20a, b

support

21

paneling

22

drive housing

25

guide

26

guide

30

empty jug

31

full pot

32

retraction

33

of extension

40

guiding device

41

leadership

41a

cone

41b

cone

41c

guide

41d

axis of rotation

42

leadership

42a

cone

42b

cone

42c

guide

42d

axis of rotation

43

frame

43 a

vertical axis

43b

horizontal axis

44

attachment

45

sensor

46

frame

46a

vertical axis

46b

horizontal axis

47

cylinder

48

paneling

Claims (12)

1. A device for filling a can with sliver, which is produced in a spinning preparation installation, e.g. a draw frame, a carding machine or a combing machine, wherein the device is adapted to accommodate simultaneously an empty and a full can, including a silver coiling head (13) with a revolving coiler plate (14), wherein at least the revolving coiler plate (14) is supported to be displaceable, wherein the device includes at least one guiding device (40) for the sliver, characterized in that the at least one guiding device (40) is adaptable to the course of the sliver during the displacement procedure of the revolving coiler plate (14).
2. The device according to claim 1, characterized in that the guiding device (40) comprises at least two guide rollers (41, 42), wherein at least one guide roller (42) is disposed to be pivotable.
3. The device according to claim 2, characterized in that the pivoting movement of the guide roller (42) occurs continuously with the displacement movement of the revolving coiler plate (14).
4. The device according to any of the aforementioned claims 2 or 3, characterized in that the pivoting movement of the guide roller (42) is such that the sliver is always guided vertically with regard to a rotation axis (42d) of the guide roller (42).
5. The device according to claim 1, characterized in that the revolving coiler plate (14) is integrated into a sliver coiling head (13), wherein the sliver coiling head (13) performs the displacement movement.
6. The device according to claim 5, characterized in that the guiding device (40) is disposed on the sliver coiling head (13).
7. The device according to claim 2, characterized in that the rotation axis (42d) of the guide roller (42) is disposed at a horizontal axis (46b), which is configured to be pivotable, respectively rotatable.
8. The device according to claim 7, characterized in that pivoting, respectively rotating the horizontal axis (46b) is realized mechanically, by motor, hydraulically or pneumatically.
9. The device according to any of the preceding claims 2 to 4, characterized in that the pivoting movement of the guide roller (42) is coupled to the displacement movement of the revolving coiler plate (14) and/or of the sliver coiling head (13).
10. The device according to any of preceding claims, characterized in that the sliver is delivered by a carding machine.
11. The device according to any of preceding claims 9 or 10, characterized in that a first guide roller (41) is disposed in the area of the revolving coiler plate (14), and a second guide roller (42) is disposed between the first guide roller (41) and a carding machine.
12. The device according to any of preceding claims, characterized in that each one of the guide rollers (41, 42) comprises two cones (41a, 41b, 42a, 42b), which are connected at their tips, and thereby form a guiding groove (41c, 42c).

Images