EP0572420B1 - Wire card raising machine - Google Patents

Abstract

A brushing machine has at least one driven cylinder with a plurality of holding devices mounted in its lateral disks. Each holding device is fitted with a different type of roughening roller and at least one holding device can be rotated by an adjusting device. The adjusting device has a lifting device (18; 18.1) which can be actuated in a controlled manner. A segment carrier (20; 20.1) is articulated to, and can be moved by, the lifting device (18; 18.1) between an initial position and an operating position which acts upon the holding device (1) to be rotated, at a given angle. In its working position, the segment carrier (20; 20.1) rests against a wheel (21) rigidly mounted on the holding device (1) to be rotated. The adjusting device is associated with a releasing device comprising a second lifting device (9; 9.1) which can be actuated in a controlled manner. An unlocking segment (10; 1.1) is articulated to, and can be moved by, the second lifting device (9; 9.1) between an initial position and a working position which releases the holding device (1) to be rotated, at a given angle. In its working position, the releasing segment (10; 10.1) is articulated to a stopping device (16; 22; 22.1) arranged on the holding device (1) to be rotated and releases the respective holding device (1) before the latter rotates.

Description

The invention relates to a scraper roughening machine for textile fabrics with at least one driven reel, wherein in the side windows of the reel several, each equipped with at least one roughing roller of different types of rollers and rotatable and lockable receiving devices are mounted.

With a scraper roughening machine for textile fabrics, the difference in speed between the textile fabric to be roughened and the roughening rollers roughened the surface of the textile fabric (roughing effect) and thus, in particular, increased heat retention and a woolly, fluffy feel. To achieve roughening effects, roughing rolls of the same type of roll (counter-coarse or line-roughing rolls) or roughing rolls of different types of roll (counter-coarse and line-roughing rolls in the same or different ratio to one another) are used. It is also possible to use different scraper fittings for the roughing rollers.

State of the art

Known is a scraper roughening machine with multiple, revolver-shaped receiving devices mounted in the side windows of the drum (German laid-open specification No. 39 23 611). A number of roughing rollers, for example two counter-streaking roughing rollers and one streaking roughing roller, are stored in each receiving device. Two of these roughing rollers are in the working position. This construction has proven itself to the extent disclosed due to the possibility of changing the ratio of the roughing rollers in the working position.

Starting from this prior art, it is the concern of the present invention to improve the construction of a scraper roughing machine of this type with regard to the adjustment of receiving devices.

There was also proposed a scraper roughening machine with a plurality of pick-up devices, which are mounted in the side windows of the drum and have a turret-shaped design (German Patent No. 401 721). Each receiving device is equipped with several roughening elements in such a way that only one roughening element of each receiving device is in the working position and that the textile fabric is roughened first with a blunt and then, in accordance with the progressing work step, with a sharper scratch fitting.

By means of a corresponding gear drive connected to the receiving devices, it is only possible to adjust all the receiving devices together in such a way that, after the adjustment, the textile fabric again first with a blunt and then, according to the progress of the work, can be roughened with a sharper scratch fitting.

The invention seeks to remedy this.

Presentation of the invention

The invention is based on the disclosure of creating a scraper roughing machine according to the preamble of the first claim, in which the ratio of the roughing rollers in the working position of one roller type to the roughing rollers of another roller type can be changed by at least one unlocking, adjusting and locking device .

• Verstelleinrichtung
  • -- eine gesteuert betätigbare Hubeinrichtung aufweist,
  • -- an der ein durch die Hubeinrichtung zwischen einer Ausgangslage und einer in einem definierten Winkel zu orehenden Aufnanmeeinrichtung bewirkenden Wirkungslage bewegbarer Segmentträger angelenkt ist und
  • -- der Segmentträger in seiner Wirkungslage an einem an der zu drehenden Aufnahmeeinrichtung fest angeordneten Rad anliegt,
• der Verstelleinrichtung eine Entriegelungseinrichtung zugeordnet ist, die
  • -- eine weitere gesteuert betätigoare Hubeinrichtung aufweist,
  • -- an der ein durch die weitere Hubeinrichtung zwischen einer Auegangelage und einer das Entriegeln der in einem definierten Winkel zu drehenden Aufnahmeeinrichtung bewirkenGen Wirkungslage bewegbares Entriegelungssegment angelenkt ist und
  • -- das Entriegelungssegment in seiner Wirkungslage an einer an der zu drehenden Aufnahmeeinrichtung angeordneten Arretiereinrichtung vor dem Drehen der betreffenden Aufnahmeeinrichtung das Entriegeln bewirkend angelenkt ist.

This object is achieved by the features of the characterizing part of the first claim, namely that

• Adjustment device
  • has a controlled actuating lifting device,
  • - on which a movable segment carrier is articulated by the lifting device between an initial position and an effective position causing the recording device to be located at a defined angle, and
  • the segment carrier rests in its operative position on a wheel which is fixedly arranged on the receiving device to be rotated,
• the adjusting device is assigned an unlocking device which
  • has a further controlled actuating lifting device,
  • - on which an unlocking segment which is movable by the further lifting device between an external position and an unlocking of the receiving device to be rotated at a defined angle is articulated and
  • - The unlocking segment in its operative position is articulated on a locking device arranged on the receiving device to be rotated prior to turning the relevant receiving device to effect the unlocking.

Further features of the invention include the claims following the first claim.

The advantages achieved by the invention can be seen essentially in the fact that the ratio of the working position Roughing rollers or one can be changed to the other roller type - this is also to be understood to mean a ratio in which only one roller type is in the working position - and thus other roughening effects can be achieved. It is also essential that the textile fabric can remain on the reel during the change in the ratio of the roughing rollers in the working position of the one type of roller and thus relatively long changeover times can be avoided.

Brief description of the drawing

Fig. 1:

eine schematische Querschnittsdarstellung eines Tambours einer Kratzenraunmaschine mit einer gleichen Anzahl sich in Arbeitsstellung befindenden Gegenstrichrauhwalzen und Strichrauhwalzen sowie zwei dem Tambour zugeordnete Zugwalzen,

Fig. 2:

eine schematische Darstellung einer Entriegelungs-, Verstell- und Arretiereinrichtung, wobei der Entriegelungsvorgang an einer definierten Aufnahmeeinrichtung eingeleitet ist,

Fig. 3:

die schematische Darstellung der Entriegelungs-, Verstell- und Arretiereinrichtung während des Verstellvorganges der definierten Aufnahmeeinrichtung und

Fig. 4:

einen Zeitablaufplan für ein Entriegeln, Verstellen und Arretieren einer Aufnahmeeinrichtung.

The invention is explained in more detail below using an exemplary embodiment. Show in the accompanying drawings

Fig. 1:

1 shows a schematic cross-sectional representation of a drum of a scratching machine with an equal number of counter-coarse rollers and line-roller rollers in the working position and two pull rollers assigned to the drum,

Fig. 2:

1 shows a schematic representation of an unlocking, adjusting and locking device, the unlocking process being initiated at a defined receiving device,

Fig. 3:

the schematic representation of the unlocking, adjusting and locking device during the adjustment process of the defined receiving device and

Fig. 4:

a time schedule for unlocking, adjusting and locking a receiving device.

Best way to carry out the invention

The scraper roughing machine has, among other things, a driven drum stored in a machine frame (not shown). This reel essentially comprises a plurality of recording devices 1, which are both rotatably and lockably mounted in bearings 3 arranged on the reel disks 2. For reasons of clarity, FIG. 1 shows only one drum disk 2.

Each pick-up device 1 is equipped with two types of roughing rollers 4, in accordance with the exemplary embodiment with two counter-streaking roughing rollers 4.1 - also referred to below as G - and a line-roughing roller 4.2 - also referred to below as S -, the roughing rollers 4 located on the pitch circle 2.1 are in working position. For the sake of clarity, the identification with the corresponding reference numerals was carried out only for two receiving devices 1 and the types of roughing rollers 4 stored therein.

The roughing rollers 4 are supported at both ends in the receiving devices 1, preferably only the roughing rollers 4 which are in the working position being driven.

The receiving devices 1 mounted in the reel disks 2 are, as will be described in the following, locked in their initial position and can be unlocked, then in one of the division of the roughing rollers 4 in the receiving device 1 Angle turned and then locked in their new position again. It is therefore possible to change the ratio of the counter-coarse roller 4.1 in the working position to the line roller 4.2. The following variants of the ratio of the roughing rollers 4 in the working position are thus preferably possible: G to S ratio repeating sequence for two successive recording devices 1 Figure 1 1: 1 G - S - G - S - ... after rotating all the recording devices 1 by 120 degrees compared to FIG. 1 at twenty-four in the working position located roughing rollers 4 24: 0 G - G - G - G - ... (G: 0) after rotating every second recording device 1 by a further 120 degrees 3: 1 G - G - G - S - ...

The scraper roughing machine also includes an input tension roller 5 and an output tension roller 6, both of which are mounted in the machine frame and with which the textile fabric 7 running over the drum is transported and at the same time is held under a certain tension. Other elements belonging to the scraper roughening machine, such as drive, entrance and exit of the scraper roughening machine, cleaning rollers, were also not shown for reasons of clarity.

The ratio of those in the working position To achieve roughing rolls 4 of one type of roll to the other type of roll, an unlocking device, an adjusting device and a locking device, as shown in FIGS. 2 and 3, are provided. FIG. 2 shows the unlocking device in its inoperative position, ie in a position that has already been initiated in the unlocking process for a defined receiving device 1.

The unlocking device has a first working cylinder 9, which is preferably pivotably mounted in a receptacle 8 in the machine frame, and a run-up element 10 articulated on the piston rod 9.1 of this working cylinder 9, which is pivotably mounted in a bearing point 11, which is also preferably arranged in the machine frame. The side of the run-up element 10 facing the spool disk 2 is designed as a run-up curve 10.1, on which a roller 13 mounted on an unlocking lever 12 rolls when the relevant receiving device 1 is unlocked. The unlocking lever 12 is mounted in a receptacle 14, which is preferably fastened to the bearing point 3, and articulated by a pulling element 15 on a locking pin 16.

As can also be seen from FIGS. 2 and 3, the adjusting device used to rotate the receiving device 1 in question has a second working cylinder 18 mounted in a bearing 17 arranged in the machine frame. On the piston rod 18.1 of this second working cylinder 18 is a segment carrier 20 mounted in a bearing 19 arranged in the machine frame. This segment carrier 20 is equipped with a clean segment 20.1, which is connected to a friction disk 21, which is preferably fixedly arranged on a bearing journal of the receiving device 1 when the receiving device 1 rotates.

The locking device has a locking disk 22 with recesses 22.1 which is firmly connected to the receiving device 1. The locking pin 16, which is loaded by a compression spring 23 and articulated by a tension element 15 on the unlocking lever 12, projects into one of the existing cutouts 22.1. It thus fixes the position of the receiving device 1.

2 and 3 only one unlocking device, one adjusting device and one locking device are shown. The unlocking and adjusting device are mounted at a defined point in the machine frame and in the area of the one reel 2 so that the unlocking and adjusting device in the event of a change in the ratio of the roughing rollers 4 in the working position of one type of roller to the other type of roller the defined receiving device 1 acts. A second unlocking and adjusting device is also stored at a defined point in the machine frame and in the area of the other drum disc 2 so that it is simultaneously with the other unlocking and adjusting device, acting together, effecting an adjustment (unlocking, rotating by a defined angle and locking again) of the receiving device 1 in question.

However, it is also possible to store a further pair of the unlocking and adjusting device at a further defined location in the machine frame, in order thus to be able to also adjust another receiving device 1.

The locking devices are present at both ends of all receiving devices 1.

The unlocking, adjusting and locking device works as follows:
The sequence of the changeover of a recording device 1 is predetermined by a programmable logic controller 25. To detect the position of the tamour, an absolute angle sensor 26, which is connected to the programmable logic controller 25, is assigned to it. It is thus possible to exactly identify the position of each receiving device 1 relative to the absolute angle of rotation α of the reel discs 2 and thus of the reel. A reference variable, for example a number, is assigned to each recording device 1 within the memory-programmed controller 25. Likewise, the existing ratio of counter-coarse roller 4.1 to the line coarse roller 4.2 and thus the rotational position of each receiving device 1 stored in the programmable controller 25.

When changing the ratio of counter-scraper rollers 4.1 to screed roller 4.2, the operator preselects the desired ratio of counter-screed roller 4.1 to screed roller 4.2, enters this data into the programmable logic controller 25 and starts it and thus the conversion of the corresponding recording devices 1. The programmable logic controller 25 defines the receiving devices 1 to be converted from the existing and the desired ratio of the counter-coarse rollers 4.1 to the line coarse rollers 4.2. In certain receiving devices 1, a double changeover and thus preferably a renewed reel rotation may be required. The solenoid valves 27, 28 for the first working cylinder 9 and the solenoid valves 29, 30 for the second working cylinder 18 are controlled directly as a function of the absolute throttle angle of the drum, the respective position of the working cylinders 9, 18 being controlled by sensors 31, 32, 33, 34 can be checked. Another sensor 35 controls the locking of this receiving device 1 after the changeover of the receiving device 1 by the locking pin 16 in connection with the locking disk 22.

If the ratio of the counter coarse rollers 4.1 to the line coarse rollers 4.2 changes, the defined one begins first receiving device 1 and starting from the starting position - this starting position corresponds to the absolute angle of rotation α ₁ - the receiving device acts on the first working cylinder 9 with a pressure medium, so that the piston rod 9.1 and thus the overrun element 10 move into the operative position shown in FIG. 2. Due to the dren movement of the drum - this is shown in FIGS. 1 to 3 by an arrow 24, and when changing the ratio of the counter-coarse rollers 4.1 to the line-roughing rollers 4.2 there is preferably a relatively low speed of the drum - the roller 13 rolls on the run-up curve 10.1 in the first phase so that the unlocking lever 12 mounted in the receptacle 14 lifts the locking pin 16 via the tension element 15 and the receptacle device 1 is thus unlocked. When the angle of rotation α ₂ is reached, the second working cylinder 18 is pressurized with a pressure medium, so that the extending piston rod 18.1 moves the segment carrier 20 into its operative position, that is to say that the friction segment 20.1 bears against the friction disk 21. Due to the dren's movement of the drum, the friction disk 21 rolls on the friction segment 20.1 and thus rotates the receiving device 1 until an angle of rotation α _{4 is reached} . When reaching the α between the rotation angles α ₂ and ₄ lying rotational angle α _3, the opposite impingement takes place of the first operating cylinder 9 so that this again to its initial position, as shown in FIG. 3 assumes.

When the angle of rotation α _{4 is reached} , the defined receiving device 1 has completed a rotary movement of 120 °. Thus, a recess 22.1 present in the locking disk 22 also reaches a position in which the locking pin 16 engages in this recess 22.1 by the force of the compression spring 23. The defined receiving device 1 is thus adjusted by an angle of rotation of 120 ° and locked again. At the same time, this means that a roughing roller 4 which was previously in the working position is now outside its working position, while the roughing roller 4 previously located outside the working position is now on the pitch circle 2.1 and thus in the working position.

Likewise, when the angle of rotation α _{4 is reached,} the second working cylinder 18 is acted upon in the opposite manner by the pressure medium, so that the latter and thus the segment carrier 20 move back into their starting position.

When the drum is in the region of its angle of rotation α ₅ , the locking of the previously rotated receiving device 1 is checked by a sensor 35.

The processes for unlocking, rotating and locking a receiving device, based on the angle of rotation α, are shown in FIG. 4. The processes described also run for the unlocking, adjusting and locking device assigned to the other end of the defined receiving device 1 from the same time and clock.

When the unlocking, adjustment and arresting process in its entirety with a receiving device 1 ends, the drum continues to rotate until the preselected receiving device 1 - designated by "n" in FIG. 4 - changes in the defined, ie. H. in the position required for unlocking, turning and locking in relation to the unlocking, adjusting and locking devices. When this position is reached, the relevant receiving device 1 is unlocked, turned and locked again, as already described and shown in FIGS. 2 to 4. This process is repeated in accordance with the inputs given by the operating programmable control 25.

The size of the angle of 30 ° shown in FIG. 4 is derived from the number of receiving devices 1 stored in the drum; in the present example:
360 °: 12 holding devices 1 = 30 ° / holding device. However, it is also possible to specify a different angle, such as 60 °, 90 ° etc., of the programmable logic controller 25 for the selection of the recording devices 1 to be adjusted.

If there are fifteen recording devices 1 on the drum, for example, there is an angle of 24 °, which the memory-programmed controller 25 is given as a size.

The elements for control shown in FIG. 2, such as angle transmitters 26, solenoid valves 27, 28, 29, 30, sensors 31, 32, 33, 34, 35, the memory-programmed control 25, are shown in FIG. 3 for reasons of clarity not shown. This also applies analogously to the identification of the receiving devices 1 located outside the unlocking, adjusting and locking area.

Industrial applicability

The solution according to the invention is used in scraping roughing machines, such as are to be used in the textile finishing industry for finishing textile fabrics 7. The scraper roughing machine has at least one driven TamDour, wherein in the side windows 2 of the drum several, each equipped with at least one roughing roller 4 different roller types and rotatable and lockable receiving devices 1 are mounted.

The advantages achieved by the invention are essentially to be seen in the fact that the ratio of the roughing rollers in the working position of the one to the other roller type can be changed - this is also to be understood as meaning a ratio in which only one roller type is in the working position - and other roughness effects can be achieved. It is also essential that the textile fabric during the change in the ratio of the roughing rollers in the working position one can remain on the reel with the other type of roller and thus relatively long changeover times can be avoided.

Claims (11)

1. A card wire raising machine for flat textile structures, with at least one driven drum whereby a plurality of mounting devices are mounted in the side plates of the drum, each fitted with at least one raising roller of various types, at least one mounting device being capable of being rotated by an adjusting means,
   characterised in that the

   1. adjusting means

   1.1. comprises a lifting device (18; 18.1) adapted to be actuated under control,

   1.2. on which there is articulated a segment carrier (20; 20.1) adapted to be moved by the lifting device (18; 18.1) between a starting position and an operative position on a mounting device (1) which is to be rotated through a specific angle and

   1.3. in its operative position, the segment carrier (20; 20.1) bears on a wheel (21) disposed rigidly on the mounting device (1) which is to be rotated,

   2. the releasing device is associated with the adjusting means and

   2.1. comprises a further lifting device (9; 9.1) adapted to be actuated under control,

   2.2. on which a releasing segment (10; 10.1) is articulated, being adapted to be moved by the further lifting device (9; 9.1) between a starting position and an operative position for releasing the mounting device (1) which is to be rotated through a specific angle and

   2.3. in its operative position, the releasing segment (10; 10.1) is articulated on an arresting device (16; 22; 22.1) disposed on the mounting device (1) which is to be rotated to cause releasing prior to rotation of the respective mounting device (1).
2. A card wire raising machine according to Claim 1,
   characterised in that the lifting element (18; 18.1) can be actuated under control as a function of the further lifting element (9; 9.1).
3. A card wire raising machine according to Claim 1,
   characterised in that the lifting element (18; 18.1) can be actuated in a controlled manner with an offset in timing.
4. A card wire raising machine according to Claim 1,
   characterised in that, in its operative position, the segment carrier (20; 20.1) is frictionally connected to the wheel (21).
5. A card wire raising machine according to Claim 1,
   characterised in that in its operative position the segment carrier (20; 20.1) is positively connected to the wheel (21).
6. A card wire raising machine according to Claim 1,
   characterised in that one adjusting device and one releasing device are respectively mounted in the machine frame at both ends of one specific mounting device (1).
7. A card wire raising machine according to Claim 1,
   characterised in that a force-transmitting element (12) is disposed between the releasing segment (10; 10.1) and the arresting pin (16).
8. A card wire raising machine according to Claim 1,
   characterised in that a control device (25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35) which operates as a function of the absolute angle (α) of rotation of the drum is associated with the releasing device and the adjusting device.
9. A card wire raising machine according to Claim 8,
   characterised in that the control device (25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35) comprises a memory-programmable control unit (25).
10. A card wire raising machine according to Claim 1,
    characterised in that at least one scanning element (26; 31; 32; 33; 34; 35) is associated with at least one of the existing releasing, adjusting and arresting devices to ascertain the operative position and/or the starting position and influence at least one follow-up device via the control unit.
11. A card wire raising machine according to Claim 10,
    characterised in that the scanning element (26; 31; 32; 33; 34; 35) is a sensor.

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