DE1785682A1 - ROUND BRAIDING MACHINE - Google Patents

Description

Messenger & Boilini. rl D-2800 Bruiieii 1. Postlach 78Γ> PATENT ADVERTISER DR-ING KARL BOEHMERT (1933-1973)

PATENT Attorney DIPL-ING.ALBERT BOEHMERT.BREMEN PATEN! LAWYER DR-ING. WALTER HOORMANN. BREMEN

To öa: -i patent attorney dipi.-imiys.dr.heinz goddar, Bremen

PATENT Attorney DIPL-ING. EDMUND F ElTNER, MUNICH

German Pa i; ent ;; int -

LAWYER WILHELM J.H. STAHLBERG, BREMEN

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Your sign your sound

Your ref. Your li-itei

P 1785582.5-26

Our mark Our ref.

R 89

Bremen, Feldstrasse 24

April 23, 1974

Rockwell International Corporation, Pittsburgh, Pennsylvania 15219, 600 Grant. Street, V.3t.A.

Circular braiding machine

The invention relates to a circular braiding machine with bobbins guided by gear plates, which have guide rollers mounted on different axes, engaging with unfong notches of the drive plates and at least one guide roller mounted on an additional parallel axis. ■,

In a known circular braiding machine of this type (DT-FS 3V + 7 ^/) -5), the transition of the clapper from one drive plate to the other is relatively jerky. This is due to the fact that , after the respective leading driver roll has passed from the assigned circumferential branch of one driver to the corresponding circumferential notch of the following driver disk, the transition is made by turning the clapper around the curve in the gear plate

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guided guide roller with subsequent, sudden jumping in of the trailing driver roller in the corresponding circumferential notch of the next drive plate takes place, due to the outside of each Different relative speed of the point lying on the connecting line of the axes of adjacent drive plates the circumferential notches of adjacent drive plates. By rotating the clapper around the axis of the respective In the known circular braiding machine, there is thus both a partial lifting out of the leading role leading as well as the trailing driver roller when passing from one drive plate to the other. This partial lifting is in fact required to increase the center-to-center distance between the leading circumferential notch of one drive plate and the trailing peripheral notch of the adjacent drive plate to compensate for the distance from center to center between the driver rollers.

The above-described brief loss of leadership at the intersections or transition points causes in the case of the "known circular braiding machine in cooperation with the ochleuding forces occurring in the bobbin lace feet a wobble of the clapper, causing excessive wear between the cams and drive rollers and, as a result of the sudden stress, also in the other guide and drive devices the circular braiding machine results. This greatly reduces the working speed of the circular braiding machine.

According to another proposal (DT-AS 1 660 004-), the transition of the clapper between adjacent drive plates is made smoother by having at least one additional guide role on the clapper coaxially with each hitch.

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foot is arranged. It can also be provided that each clapper has two pairs of coaxially mounted driver rollers and a few in different planes Has additional guide rollers mounted coaxially in different planes. The Gangplattsn are then with appropriately arranged gear curves and the drive plate with appropriately arranged circumferential notches. As a result, the exact guidance is continued during the transition of the clapper from one drive plate to the next promoted because namely also tumbling movements about a located in the plane of the driver rollers or guide rollers Axis can be completely avoided by the storage taking place in two planes.

The invention is based on the object of a circular braiding machine the aforementioned genus by other measures an even smoother transition of the clapper between to enable neighboring drive plates.

According to the invention this object is achieved in that each clapper has at least two guide rollers mounted coaxially in different planes. Here recommends it is that two of the guide rollers on all clappers in the same plane and, in each case, two other the guide rollers are arranged on adjacent clappers in different levels, with a corresponding arrangement of the course curves. Through these measures, the exact guidance during the transition is promoted in an advantageous manner.

According to the invention it can also be provided that one of the notches of each notch pair is coaxial for all of them arranged carrier rollers with an extended end

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surface is formed. This is the disengagement the driver rollers from the circumferential notches of one drive plate and the engagement with the circumferential notches of the next drive plate particularly promoted, namely in the one provided with the extended end face Circumferential notch a certain displacement of the associated driver roller in the circumferential direction of the drive plate can without an immediate detachment of the corresponding driver roller on the circumferential notch required were. The softness of the clapper transfer is hereby influenced in an advantageous manner.

Promote all measures proposed according to the invention the softness of the bobbin transition especially in connection with that contained in "the DT-AS 1 660 004" Proposal of protected characteristics.

An exemplary embodiment is explained in the figures. It shows:

Fig. 1 shows an embodiment of the circular braiding machine according to the invention in a schematic Front view;

FIG. 2 shows, in an enlarged illustration, a section along the line 2-2 of FIG. 1 in the direction seen of arrows;

3 shows an enlarged view (view) of a clapper with a clapper foot and drive device for the clapper, viewed in the direction of arrows 3-3 of Fig. 1;

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Fig. 4- is a partial view along line 4-4 of Fig. 2, seen in the direction of the arrows;

Fig. 5 is a partial section along line 5-5 of

Fig. 2, seen in the direction of the arrows;

6 is a partial section along the line 6-6

of Figure 2, viewed in the direction of the arrows; and

7, 8 and 9 are views similar to one another of the parts shown in FIG. 4, the individual parts different relative positions. to take*

A head 10, shown in FIG. 1, of a horizontal circular braiding machine for the production of braids on high pressure hoses or the like has an annular one Housing 11, the legs 12 of which are supported by a base plate 15 worn i ^ earth. The housing 11 has a rear wall 16, an outer wall 17 and an inner wall 20 (Fig. 2), the has an inner, cylindrical opening 21 through which the hose or the like passes, which is from similar braiding machines or from other machines or stations at which other work stages have taken place. In the rear wall 16 are on a concentrated

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trically to the center of the axis of the housing a number of similar bearing bushes 22 are arranged, the drive plates 25 for driving the clapper feet 26, of which each clapper 28 (shown schematically in Figs. 1, 2 and 3) along intersecting sinus paths in opposite directions around a Braiding Center 29 in the following

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written way moves. Each bearing bush 22 has a flange 27 fastened to the outer surface of the wall 16 with screws 30 and a bearing portion 31 which fits into a bore 32 in the rear wall 16. A bearing section 35 of reduced diameter carries the inner races of ball bearings 36 and 37 », which are separated from one another by a spacer sleeve 40, and in their position on the section 35 between a shoulder 41 which lies between the bearing sections y \ and 35 of the bearing bush 22, and a snap ring 42 or the like, which is located in a groove 45 provided in the bearing section 35.

Each drive plate 25 has one of the outer races of the bearings 36 and 37 carried block 46 with a Gear section 47 which meshes with gear sections of the next adjacent drive plate, so that all the second drive plates of the group rotate in a direction opposite to the direction the intermediate drive plate is directed. The drive plate is driven by a gear 43, which with the gearwheel sections 47 of a single Drive plate is engaged and via a gear 44 and a chain or belt 48 from a Drive shaft 49 (Fig.1) is driven. Every block 46 has a flange 50 with spaced holes 51 to accommodate the offset ends 52 each of a bolt 55 · The bolts 55 are in the flange 50 by screwed onto the offset ends 52

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Gev / in & nuts 56 attached. The other ends of the Bolts 55 are similarly provided with stepped ends 57, the holes 60 of a second Pass through the flange 61, which is attached to the bolts by means of threaded nuts 62 screwed onto the ends 57 is attached. The flange 61 has a bore 65 for receiving the outer race of a ball bearing 66, which is in the bore 65 between an existing on one end of the bore 65 shoulder 67 and a Snap ring 70 is held, which is located in an existing in the bore 65 annular groove 7 ^. The inner race of the ball bearing 66 is carried by a stub shaft 72 which is in a bore 75 sits, which is located in the end of the bearing bush 22 facing away from the flange 27 (FIG. 2).

The flanges 50 and 61 of the drive plates 25 have recesses 76 which alternate with flange sections 77. The corresponding flange portions 77 of the flanges of all second drive plates have aligned circumferential detents 80 which are present in the outer periphery of the flange portions 77 near a wall 81 which forms one end of each recess 76 (FIGS. 4 and 6). The flange portions 77 of all second drive plates are also provided with aligned, elongated circumferential notches 82 each having a surface 85 which is concentric to the axial center of the drive plate and extends inward from a wall 86 which forms the other end of each recess 76. The inner end of the surface 85 is with the outer periphery of the flange portion 77 by a

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End face 87 connected. In deji intermediate drive plates 25, the flange portions 77 on the flanges 50 and 61 are provided with circumferential detents 80 and 82, the order of which is reversed compared to the drive plates described first (FIG. 1), so that when the rotation takes place in the opposite direction Adjacent drive plates meet similar notches.

Each clapper foot 26 has a frame 90 (FIGS. 2, 3 and 4) with flanges 91, 92 and 93 and a bobbin carrier 28 supporting flange 94-. These flanges are connected to one another by transverse ribs 95. In the flanges between the transverse ribs 95 is a Center spindle 96 stored. Furthermore, an end spindle 97 on each side of the flange is in bearing bores Center spindle 96 mounted at the same distance. Each end spindle 97 rotatably carries a spool-like roller 100 with a driver roller 101 which is inserted into the circumferential notches 80 and 82 of the flanges 50 of the drive plates 25 intervenes. A flange 102 flanks the follower roller 101 and lies on opposite side surfaces of the flange 50. The roller also has a hub 105. On each end spindle 97 is also between the flange 93 and a snap ring 106 located in a groove of the spindle 97 is another driver roller 107 is present, which can engage in the circumferential notches 80 and 82 of the flange 61.

One on each end spindle 97 in addition to the center

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slave roller 101 rotatably mounted guide roller 110 can connect to outer course curves 111 which run concentrically to the center of each drive plate 25 and from one protruding from the wall 17 of the housing 11 inward, flange forming part of the gear plate, and to similar internal cams 115 that have the same radius as the Curves 111 and those protruding inwardly from the inner wall 20 of the housing 11, likewise a part of the gear plate forming flange 116 are located. One the same diameter as the guide roller 110 having guide roller 117 is rotatably mounted on each end spindle 97 and rests with the Gear curves 111 aligned and the same radius having outer gear curves 120, which are on one protruding from the wall 17 of the housing 11 inward, are in turn part of the gear plate forming flange 121, and on with the gear curves 115 aligned and having the same radius Gear curves 122, which are located on one of the wall of the housing 11 inwardly protruding, the gear plate completing flange 125. The roles 100 or 101 and 110 are against axial movement on the end spindles 97 of the flange 91 of the frame 90 and held by a snap ring 126 each, which is the associated end spindle is clamped with screws 127 (Fig. 3). The guide rollers 117 are against Axial movement on the end spindles through C-rings I30 (Fig. 2 and 5) held, which are carried on opposite sides of the rollers in grooves of the spindles.

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On the central spindle 96 of each clapper foot 26, a guide roller I3.5 is rotatably mounted between C-rings 132 carried in the grooves of the central spindle, which guide roller can rest against the cams 111 and 115 delimited by the flanges 112 and 116. Furthermore, a guide roller 136 is rotatably mounted on the central spindle 96 of each clapper foot 26 between the flange 93 and a C-ring 137, which guide roller 136 can rest against the course cams 120 and 122 delimited by the flanges 121 and 125. Furthermore, a guide roller 140 is rotatably mounted on the central spindle 96 between C-rings I39 of all the clapper feet 26, which follow the path indicated by the arrow B in FIG forming cam 141 can place. The cam disk 141- has a disk section 142 which runs parallel to the gear curves 111, 120 or 115, and has diverging sections 145. The positions of the cam disks 141 of adjacent drive plates (FIG. 6) is reversed so that the surface 142 of the a cam disk runs parallel to the cams 111 and 120, while the surface 142 of the next adjacent cam disk runs parallel to the cams 115 and 122. The sections 145 of adjacent cam disks 141 face one another.

The central spindle 96 of all the bobbin feet 26, which is opposite to the path indicated by the arrow A in FIG

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follow the clockwise direction, carries a first transfer device, which consists of a guide roller 146 (Fig. 6), which rests against a second transfer device, which also forms part of the gear plate from a cam disk 147 assigned to each drive plate 25. The cam disk 147 has a surface running parallel to the gear curves 111, 120 and 115, 122 and diverging sections 15I. The operation of the first transfer device and the second transfer device will be described later. The positions of the cam disks 147 (Fig. 6) assigned to adjacent drive plates are designed in mirror image fashion, so that the surface I50 of the first cam disk 14-7 runs parallel to the curves 115 and 122, while the surface I50 of the next adjacent cam disk parallel to the curves 111 and 120 runs. The sections 15I of adjacent cam disks 14-7 also face one another. The cam disks 141 and 147 assigned to each drive plate 25 are mounted on the stub shaft 72 and are fastened to the end of the bearing bush 22 for the drive plate by screws I52 (FIGS. 2 and 6). The guide rollers 140 and 146 are arranged on the central spindles 96 in the plane of the cam disks on which they bear.

When the machine is switched on, the one indicated by 26a first group of clapper feet or clapper in direction A counterclockwise, the with 26b designated second group of clapper in direction

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device B - clockwise - driven. The existing in the flanges 50 and 61 of the drive plate 25 Circumferential detents 80 and 82 are arranged so that the trailing rollers 100 and 107 of the clapper feet of the circumferential notches 80 present near one side of the recesses 76 and the leading ones Roll 100 and 107 in the near the other side of the recesses existing circumferential notches 82 are added. When moving the clapper feet 26a and 26b with the individual drive plates 25 are the guide rollers 110, I35 and 117, 136 alternately to the outer course curves 111, 120 or the inner cams' 115, 122 to the driver rollers 101 and 107 in engagement with the in the Drive plates to hold existing circumferential notches 80 and 82. At the same time, the leadership role also subsides 146 of all the bobbin feet 26a, which moves counterclockwise in direction A, alternately to the cam disks 147 adjacent Drive plate, and the guide rollers 140 of all clapper feet 26b, which are in direction B clockwise move, take turns taking turns? the cam disks 141 of adjacent drive plates.

During the counterclockwise movement of a clapper foot 26a in direction A (Fig. 4 and Fig. 6 to 9) holds between adjacent drive plates after the guide rollers 110 and at the leading end of the clapper at the ends of the outer gear curves associated with a drive plate 25a

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111 and 120 respectively, the engagement of the guide rollers 110 and 117 at the trailing end of the clapper and the touch of the guide rollers

135 and 136 on the clapper with the speed curves 111 and 120 the leading guide rollers 110 and 117 in engagement with the circumferential notches 82 of the drive plate 25a. With the continued rotation of the drive plate the circumferential notches 82 approach one another in the drive plate 25a and the circumferential notches 82 in the adjacent one Drive plate 25b each other and meet, the leading driver rollers 101 and 107 of the clapper 26a in contact with the ends 87 of the circumferential detents 82 (Fig. 7) come. At the same time, the guide rollers located at the trailing end of the clapper foot 26a are located 110 and 117 and the guide rollers 135 and

136 of the clapper continues to the course curves 111 and 120 of the drive plate 25a. The one on the clapper Guide roller 146 is still on surface 150 of the cam disk associated with drive plate 25a 147 at. With the continued rotation the drive plate lift the guide rollers I35 and 136 of the clapper foot 26a from the drive plate 25a associated gear curves 111 and 120. The guide roller 146 moves up from the surface I50 a portion I5I of the cam plate 147 to the Driving rollers 101 and 107 located at the leading end of the clapper into those in the adjacent one To transfer drive plate 25b existing circumferential notches 82, as soon as the paths of the circumferential notches diverge (Fig. 4). As FIG. 4 shows, the distance has increased between the circumferential notches 80 in the drive plate 25a

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and the ends 87 of the circumferential detents 82 in the adjacent Drive plate 25b slightly enlarged, so that to this Time the leading driver rollers 101 and 107 in the clapper are briefly out of contact with the end surfaces 87 of the circumferential notches 82. At the next Continued rotation of the drive plate lay the leading guide rollers 110 and 117 of the ball foot 26a to the cams 115 and 122 belonging to the drive plate 25b, around the leading driver rollers 101 and 107 in the circumferential notches 82 of the drive plate 25b. At the same time, the leadership role 146 between sections I5I of the "two drive plates 25a and 25b associated cam disks held, and the trailing guide rollers 110 and 117 are on the drive plate 25a associated gear curves 111 and 120 to the trailing driver rollers 101 and 107 in the circumferential notches of the drive plate 25a (Fig. 8) to hold.

As the rotation of the drive plates continues, the trailing guide rollers 110 and 110 rise on the clapper foot 26a from the cam curves 111 and 120 assigned to the drive plate 25a. Simultaneously keeps the contact of the guide roller 146 with the cam disk 147 belonging to the drive plate 25b trailing carrier rollers 101 and I07 as long as in Driving engagement with the circumferential notches 80 of the drive plate 25a until the corresponding circumferential notches 80 in the drive plates 25a and 25b converge, meet,

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and calibrate the guide rollers 135 and 136 to the dem Drive plate 25b associated gear curves 115 or 122 (Fig. 9) · Since both the leading and the trailing driver rollers 101 and 107 are in engagement with the circumferential notches 80 and 82 in the drive plate 25b, are the leading driver rollers 101 and 107 again on the end faces of the circumferential notches 82. With the continued Rotation of the drive plate keeps the leading driver rollers 101 and 107 and the guide rollers in contact 135 and 136 to the drive plate 25b associated cams 115 and 122, the trailing driver rollers 101 and '107 so long in driving engagement with the circumferential notches 80 of the drive plate 25b until the trailing guide rollers 110 and also to the one belonging to the drive plate 25b Gear curves 115 and 122 are applied to the trailing To hold driver rollers 101 and 107 in the circumferential notches 80.

From the description it appears that the cooperation of the leading and the trailing leadership roles 110 and 117 and the guide rollers 135 and 136 on the clapper 26a with the concentric Surfaces or course curves of the housing 11 and the interaction of the guide rollers 146 with the cam disks 147 the clapper inevitably engaged with the drive plates 25 and controls the clapper so that a smooth transition of the clapper

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feet 26a takes place between adjacent drive plates. The cooperation between the various roles on the ball foot 26b driven in direction B. with the concentric surfaces of the housing 11 and the cooperation of the guide rollers 140 with the cam disks 141 holds this clapper in driving engagement with the driving discs and causes them to be transferred Clapper between adjacent drive plates in the same way as with the clapper feet 26a.

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Claims (3)

Expectations 1. Circular braiding machine with guided through aisle plates Klöppeln, the carrier rollers mounted on different axles and engaging with the circumferential notches of the drive plate as well as having at least one guide roller mounted on an additional parallel axis, thereby characterized in that each clapper has at least two guide rollers mounted coaxially in different planes (135, -136, 140, 146). 2. Circular braiding machine according to claim 1, characterized in that in each case two of the guide rollers (135 »136) all bobbins in the same plane and two other guide rollers (140, 146) on adjacent bobbins are arranged in different levels, with a corresponding arrangement of the course curves (120, 122; 111, 115 »or 141, 14?). 3. Rundfleciitmaschine according to claim 2, characterized in that that one of the notches (82) of each notch pair, continuous for all coaxially arranged Mitnehtaerrollen (101, 107), is formed with an elongated end face * (85) * 509812/000