KR20030095977A - Rolleer apparatus for a twisting head rotor - Google Patents

Abstract

The present invention relates to a roller device (1) for a combustible head having a combustible head rotor (2) for balancing the filament tension of two filaments to be combusted in the combustible head. In this roller device the filament is guided through the roller device, the roller device comprising a plurality of roller pairs 3 and 4, each of which pair of rollers is coupled relative to one another in a non-rotating manner and the axis of rotation 3c, 4c. 2 rollers (3a, 3b; 4a, 4b) rotatably supported. Known devices of this type require regular refueling of the support device.

The problem for providing a roller device in which the accessory bearings can be refueled in a simple manner is that the roller pairs 3, 4 are supported in a roller cartridge 5 having a housing 6, and the The housing 6 is solved by being provided with means 7 for releasably securing the roller cartridge 5 to the combustible head rotor 2.

Description

ROLLEER APPARATUS FOR A TWISTING HEAD ROTOR}

The present invention relates to a roller device for a combustible head according to the preamble of claim 1, comprising a combustible head rotor for coordinating the filament tension of two filaments to be combusted in the combustible head. The present invention also relates to a twist head for a twisting machine according to the preamble of claim 6, for twisting two filaments. In addition to this, the present invention relates to an oil supply device according to claim 11 for oiling a support device for a roller device for a combustible head rotor.

DE 197 00 222 C1 discloses a combustible head with a rotor for a twisting machine, which has four compensating rollers, of which two rollers have a symmetrical plane passing through the rotor axis. Two different rollers are arranged on one side, symmetrically with respect to the two rollers, on the other side of the plane of symmetry, and the two rollers facing each other with respect to the symmetrical plane are in common in pairs and in a non-rotating manner. It is located at both ends of the journal. The two filaments to be combusted in the combusting head are guided through a roller arrangement with four compensating rollers to match the filament tension of the two filaments. By harmonizing the filament tension of the two strands of filament, the friction strength of twisted twisted yarn can be improved. The combustible heads as described in DE 197 00 222 are used to produce highly technical twists (cords), in particular via a twister.

In the case of a combustible head with a rotor known from DE 197 00 222, a spherical bearing is provided for rotatably supporting a shaft journal supporting a compensating roller, which is disposed in the rotor in the region of the plane of symmetry of the rotor. It is. The life of the combustible head is substantially dependent on the refueling state of the support device of the shaft journal. The bearing lubricant flows out of the support device in part by the centrifugal force of the rotating rotor, which causes the lubrication of the spherical bearings to worsen with increasing rotor life. Thus, this requires regular refueling of the support device.

An object of the present invention is to provide a roller device for a combustible head rotor capable of lubricating an accessory bearing in a simple manner. It is also an object of the present invention to provide a combustible head for a twisting machine having an extended lifetime.

These problems are solved by the features presented in the features of claim 1 in the case of a roller device having the features of the preamble of claim 1. Furthermore, in the case of a combustible head having the features of the preamble of claim 6, it is solved by the features of the feature of claim 6. Furthermore, in order to solve this problem, the oil supply apparatus according to Claim 11 for oiling the bearing of a roller apparatus is added. Dependent claims 2-5, 7-10 and 12 relating to the independent claims are presented in preferred embodiments, respectively.

1 is an axial sectional view of a combustible head having a combustible head rotor and a roller device,

FIG. 2 is an enlarged axial sectional view showing a part of the roller device for the combustible head according to FIG. 1,

3 is a side view of a part of the combustible head of FIG. 1 cut away in the A-A direction,

4 is an axial sectional view of the roller cartridge for supporting the roller pair of the roller device shown in FIG. 1, FIG.

5 is a cross-sectional view showing a state in which the roller cartridge according to FIG. 4 is assembled;

FIG. 6 is a cross-sectional view of the oil supply apparatus for oiling the bearing of the roller cartridge shown in FIG. 4.

<Explanation of symbols for the main parts of the drawings>

1: roller device

2: combustible head rotor

3, 4: roller pair

3a, 4a, 3b, 4b: roller

5: roller cartridge

6: housing of roller cartridge

7: home

8: stop bolt

9. 10: O-ring

12: axis

13: flammable head

17, 18, 19: Guide Eyelet

21: Bearing

The invention starts with a combustible head with a rotor as described in DE 197 00 222 C1. The disclosure of this patent document is incorporated by reference into the contents of the present specification.

1 shows a false head 13 with a combustible head rotor 2, which is almost similar to that known from DE 197 00 222. In the following, the principle of a twisting machine having a combustible head of this type will first be described. This projector includes a spool frame (not shown in FIG. 1), in which a first feed spool is disposed, by which the first filament is pulled. This first filament is guided from the hole of the spool frame through the guide roll. A second filament pulled by a second feed spool (similarly not shown in FIG. 1) enters from below and into a hollow spindle (similarly not shown in FIG. 1), which hollow spindle is centered about axis 12. Rotate The second filament exits the hollow spindle in the lateral outflow hole of the hollow spindle and rotates around the spool frame and the first feed spool disposed within the filament balloon as the hollow spindle rotates. . The flammable head 13 is arrange | positioned at the upper part of the spool frame. This combustible head has a fixed housing 14 coupled with a carrier of a twisting machine (not shown in FIG. 1) (compare FIG. 3). In this housing 14 a combustible head rotor 2 is connected to the spindle axis 12. It is supported so that it can rotate freely about the coaxial rotor axis with respect to).

The roller device 1 is fixed to the combustible head rotor 2 shown in FIG. This roller device 1 comprises four compensating rollers 3a, 3b; 4a, 4b, of which two compensating rollers 3a, 4a each pass through a roller axis 12 On the other hand, two other rollers 3b and 4b are arranged in the state opposite to each other on the other side of the symmetry plane symmetrically with respect to the two rollers. Two rollers 3a, 3b to 4a, 4b facing each other with respect to this plane of symmetry are arranged in pairs at both ends of the common shaft journals 15, 16, respectively, and these shaft journals 15, 16 by screws. ) And the relative rotation is impossible. Thus, the two rollers 3a, 3b to 4a, 4b facing each other with respect to this symmetry plane form a roller pair, which is rotatably supported about the rotational axes 3c to 4c. The rotation axes 3c and 4c of these roller pairs 3 and 4 respectively extend in the direction perpendicular to the plane of symmetry to the rotor axis 12. These rotational axes 3c and 4c are superimposed in the axially displaced state in the direction of the rotor axis, and as is apparent from FIG. 3, each is disposed at a distance with respect to the rotor axis 12. This arrangement relationship is described in detail in DE 197 00 222 and is incorporated herein by reference. For the rotatable support of the shaft journals 15, 16, each of these journals is provided with a spherical bearing 21 (compare FIGS. 2 and 4).

The lower end of the combustible head rotor 2 under the lower roller pair 4 is provided with a guide eyelet for two filaments to be combusted in the combustible head. Only one eyelet is shown at 17. Through these guide eyelets the filament enters into the combustible head rotor 2. The upper part of the upper roller pair 3 is further provided with two guide eyelets 18 and 19, by which the two filaments exit the combustible head rotor 2.

The cable arrangement described above operates as follows.

That is, the first filament pulled by the feed spool disposed in the spool frame enters the combustible head rotor 2 through the lower guide eyelet 17 and moves the roller 3a of the upper roller pair 3 about 180 °. Surrounds the circumference of the range. The first filaments which follow here are directed downwards and likewise surround the roller 4a of the lower roller pair 4 in an S-shape over a circumference of about 180 °. The first filament then proceeds from the lower roller 4a to the upper guiding eyelet 18, from here to the confluence point, where the two filaments to be combusted are twisted together. The intertwined filaments leave the false head 13 as a twisted yarn or cord through a guide pipe 20 arranged at the upper end of the combustible head rotor 2 and are then wound.

As a filament balloon, two strands of filament rotating about the spool frame enter the combustible head rotor 2 through the lower guide eyelets (not shown in FIG. 1), and the upper rollers of the upper roller pair 3 ( 3a) and then in an S-shape around the roller 4b of the lower roller pair 4 in the same manner as described above with respect to the first filament, from which it joins through the upper eyelet 19. You are guided to the point.

As can be seen in particular from the detailed view of FIG. 2, the lower roller pair 4 with the two rollers 4a, 4b is supported in the roller cartridge 5. The roller cartridge 5 is provided with a housing 6. Similarly, an upper roller pair 3 with two rollers 3a and 3b is also supported in the roller cartridge 5 with the housing 6.

The housings 6 of these roller cartridges 5 each have a thin wall and are formed as a cylindrical sleeve. In this case, the axis of this cylindrical sleeve extends concentrically with respect to the rotational axes 3c, 4c of each roller pair 3-4. The outer wall of the cylindrical sleeve 6 is formed with a circumferential groove 7. In this circumferential groove 7 a stop bolt 8 is engaged as shown in FIG. 5. This stop bolt 8 is part of a spring loaded (elastically compressed) thrust member which is fixed to the combustible head rotor. This stop bolt 8 is prestressed (compressed) by the spring 11 as shown in FIG. 5.

Thus, the stop bolt 8 is pressed into the groove 7 on the surface of the housing 6 of the roller cartridge 5 by the elastic force of the spring 11. The two roller cartridges 5 shown in FIG. 1, in which two roller pairs 3, 4 are supported therein, are releasably fixed to the combustible head rotor 2 in this manner. In this case, fixing these roller cartridges 5 to the combustible head rotor 2 can be easily released by, for example, thumb pressure. Thus, the two roller cartridges 5 shown in FIG. 1 can be easily separated from the combustible head rotor 2 without the aid of additional tools. This roller cartridge 5 can be easily separated from the combustible head rotor 2 in this way, and is then supplied with lubricant for lubricating the support device of the roller pairs 3, 4, and finally the combustible provided for this. It is inserted back into the housing of the head rotor 2.

The outer cover of the housing 6 of the roller cartridge 5 is equipped with two o-rings 9, 10, which compensates for the fitting tolerance of the roller cartridge 5 in the housing of the combustible head rotor 2. This is to avoid frictional corrosion in this way.

After the roller cartridge 5 is separated from the receiving portion of the combustible head rotor 2, the bearing 21 of each roller pair 3, 4 can be re-lubricated through a special oil supply device. This oil supply device 100 is shown in cross section in FIG. 6. This lubrication device comprises a lubricant nipple 101 with a connecting member 102 for the connection of a lubricant injector, such as a grease gun. In addition, the lubricant accommodating part 103 is provided for accommodating the roller cartridge 5. This lubricant accommodating part 103 is comprised so that the roller cartridge 5 provided with the housing 6 may be inserted. When the roller cartridge 5 is inserted, the circumferential groove 7 on the housing 6 of the roller cartridge 5 faces the end of the lubricant nipple 101. The lubricant is then pressurized by a lubricant injector connected to the connecting member 102, which is dispensed through the circumferential groove 7 and reaches the bearing 21 through the lubricant hole provided in the housing 6. In order to drain the lubricant excessively, an outlet hole 104 is provided at the end of the oil supply device 100 disposed in a state opposite to the lubricant nipple 101, and the excess lubricant leaks out of the oil supply device. Can come out.

When the roller cartridge 5 is inserted into the lubricant receiving portion 103 of the oil supply device 100, two O-rings 9 and 10 disposed around the housing 6 of the roller cartridge 5 are sealed. Serves as.

After relubrication of the bearing 21 of the roller pairs 3, 4, the roller cartridge 5 with the roller pairs 3, 4 is placed in the receiving portion of the combustible head rotor 2 provided for this purpose. The roller cartridge 5 is pushed back into the receiving portion and fixed by engaging the stop bolt 8 with the groove 7 in the housing 6 of the roller cartridge 5.

As soon as the roller cartridge 5 reaches its intended position in the housing, the stop bolt 8 engages the groove 7 of the housing 6 of the roller cartridge, whereby the position of the roller cartridge is located in the housing. Is secured within.

According to the roller device for a combustible head of the present invention, a roller pair disposed in the roller device is supported in a roller cartridge having a housing, wherein the means for releasably fixing the roller cartridge to the combustible head rotor in the housing of the roller cartridge. Since it is provided, the bearing arrange | positioned at the roller pair can be refueled in a simple manner.

Claims (12)

A roller device (1) for a combustible head having a combustible head rotor (2) for balancing the filament tension of two filaments to be combusted in a combustible head, wherein the filaments are guided through the roller device, The roller device comprises a plurality of roller pairs 3, 4, each of which has two rollers 3a, rotatably coupled to each other and rotatably supported about rotational axes 3c, 4c. In the roller device provided with 3b; 4a, 4b), The roller pairs 3, 4 are supported in a roller cartridge 5 with a housing 6, the housing 6 of the roller cartridge 5 carrying the roller cartridge 5 with a combustible head rotor 2. And a means (7) for releasably fixing to the roller device. 2. The roller arrangement as claimed in claim 1, wherein all the roller pairs are supported in separate roller cartridges. 5. 3. The roller pairs 3, 4 according to claim 1, wherein the roller pairs 3, 4 are arranged in such a way that their respective axes of rotation 3c, 4c extend in parallel with one another and the housing is formed by a cylindrical sleeve 6. And the axis of the cylindrical sleeve is oriented concentrically with respect to the axis of rotation (3c, 4c). 4. The means (7) according to any one of the preceding claims, wherein the means (7) for securing the roller cartridge to the combustible head rotor (2) are defined by one or more circumferential grooves (7) in the outer wall of the housing (6). And a stop bolt (8) disposed on the combustible head rotor (2) in the groove. 5. Roller device according to claim 3 or 4, characterized in that two outer rings (9, 10) are mounted on the outer covers of all the sleeves (6). A twisting head for a twisting machine for twisting two filaments, comprising a twisting head rotor (2) rotatable about a rotor axis (12) and a roller device (1) having a plurality of roller pairs (3, 4). In the combustible head comprising the two strands of filament is guided through the roller device (1) for the balance of the filament tension before burning The roller pairs 3, 4 are supported in a roller cartridge 5 with a housing 6, which roller cartridge 5 is attached to the combustible head rotor 2 by releasable fastening means 7, 8. Combustible head, characterized in that the replaceable fixing. 7. The fastening means according to claim 6, wherein said securing means is arranged in the combustible head rotor (2) and at least one circumferential groove (7) in the outer wall of the housing (6) of the roller cartridge (5). Combustible head, characterized in that it is formed by the engaging stop bolt (8). 8. Combustible head according to claim 7, characterized in that the stop bolt (8) is prestressed by a spring (11). The method according to any one of claims 6 to 8, wherein the fixing of the roller cartridge (5) or the other roller cartridge (5) to the combustible head rotor (2) is releasable by thumb pressure, and thus the roller Combustible head, characterized in that the cartridge (5) or other roller cartridge (5) can be separated from the combustible head rotor (2) without tools. 10. The rotational axis (3c, 4c) according to any one of claims 6 to 9, wherein the two rollers (3a, 3b; 4a, 4b) of all the roller pairs (3, 4) are each non-rotable relative to each other. Are rotatably supported about, the rotational axes 3c and 4c being parallel to each other and perpendicular to the rotor axis 12 and overlapping in an axially displaced state in the direction of the rotor axis 12. Combustible head, characterized in that. In the oil supply device 100 containing a lubricant for lubricating the bearing of the roller device 1 according to any one of claims 1 to 5, the oil supply device is A lubricant nipple 101 having a connecting member 102 for connecting a lubricant injector, It is provided with a lubricant receiving portion 103 for storing the roller cartridge (5), The lubricant receiving portion (103) is characterized in that the roller cartridge (5) is formed so that it can be inserted with its housing (6). 12. The oil supply apparatus according to claim 11, wherein an outflow hole (104) is provided for flowing out the excess portion of the lubricant.