Top Weighting Arm HP-A 410 for 3- and 4-Roller Drafting Systems

The HP-A 410 top weighting arm was designed for cotton roving frames with 3-roller double apron drafting systems, as well as for 4-roller double apron drafting systems with condensing zone.

Application:

Processing of cotton, man-made fibres and blends of up to 60 mm staple length.

The HP-A 410 top weighting arm consists of the top arm body, the weighting lever, 3 or 4 weighting units and the clearer roller support or cover.

Possible top roller setting:

Max. total drafting zone: h’+ v’ 199 mmMax. distance A’ 255 mmMin. distance e 56 mmBack zone v’ min./max. 35/164 mmMain zone h’ min./max. 35/164 mm

Fig. 1 Standard setting

*) also available with weighting unit

125 N

170 N

220 N

3-Roller Double-Apron Drafting System

SCT.3214 NE 11.06

Technical News

36 mm

e

h'

A'

175 N220 N270 N140 N

170 N200 N

v'

185 N230 N280 N

*)

Setting recommended for 40 mm staple length

Possible top roller setting:

Max. total drafting zone: h’+ v’ 164 mmMax. distance A’ 255 mmMin. distance e 56 mmBack zone v’ min./max. 35/129 mmMain zone h’ min./max. 35/129 mmCondensing zone k’ min./max. 35/45 mm

4-Roller Double-Apron Drafting System with Condensing Zone

Fig. 3 Standard setting

*) also available with weighting unit

125 N 170 N 220 N

Fig. 2

*/** Dimension depends on main zone condenser appliedr

255

25 28/3128/31

27-30.528-32

28-32

x

26*)

49**)

249 ConstantTop roller dia. 28 / 31x = 2 / 3.5 mm

2

ev'

h'k'

A'

36mm

175 N220 N270 N140 N

170 N200 N175 N

220 N270 N185 N

230 N280 N

*)

Setting recommended for 40 mm staple length

Setting recommended for medium-staple fibres

Fig. 4

Fig. 5

28-3228-32

27-30.528-32

252

x

23

28/31

249 Constant

28/3125

36-41 47-50 (60)Top roller dia. 28 / 31x = 2 / 3.5 mm

28/31

28-3228-32

27-30.528-32

252

x

23

28/31

249 Constant

28/31 25

50-54 55 (70)

28/31

Top roller dia. 28 / 31x = 2 / 3.5 mm

3

Features

Weighting Components

Each top roller is held by a weighting unit consist-ing of the spring support, the leaf spring and the top roller retainer with wide contact area for reliable guidance of the top rollers.

The weighting units allow direct and frictionless weighting of the top rollers. The leaf spring prevents lateral movements of the top rollers.

The top roller retainers are machined after assembly of the top weighting arms to ensure alignment of top rollers and bottom rollers. Adjustment is not necessary.

Even under load, each weighting unit can be easily adjusted to the desired position by loosening the fixing screw.

Partial load relief

Partial load relief takes effect on all top rollers. It can be realized without any special tool. The partially loaded weighting lever is easily identified (2, Fig. 6).

Depending on the basic setting of the weighting pressure, partial load relief reduces the load set on the front top roller to 46–64 %.

Partial load relief position should be chosen during long periods of machine down time to avoid deformation of top roller cots.

HP-C Top Apron Cradles

SUESSEN HP-C top apron cradles allow quick and trouble-free replacement of the top aprons. The cradles can be easily fitted and removed. The leading edge of the metal cradle is equipped with an anti-friction clip.

The HP-A 410 top weighting arm can be equipped with short-, medium- and long-staple cradles (Chart 1).

Cradle spacers are available for all standard applications (Chart 2).

HP-R Top Rollers

SUESSEN HP-R top rollers are of the loose boss type with non-removable bosses.

They are available either without cots or with ready-ground cots of any standard specification.

Subsequent grinding of the back and front top roller cots is possible. The reduction in diameter should not exceed 3 mm to ensure sufficient pressure.

The HP-A 410 top weighting arm is designed for top roller diameters from 28 to 32 mm. The apron top roller diameter is always 25 mm.

Fig. 6 1 = loaded 2 = partly raised

4

2

1

HP-C Top Apron Cradles

Cradle Spacers

Fig. 7

Cradle TW mm

R mm

Top Apron mm

Fibre Length

mm

HP-C 8240 K23 82,5

35 37 x 40 x 1 ... 40

HP-C 9040 K23 90

HP-C 10040 K23 100

HP-C 11040 K23 110

HP-C 12040 K23 120

HP-C 13040 K23 130

HP-C 8240 M23 82,5

45.1 43,5 x 40 x 1 ... 50HP-C 10040 M23 100

HP-C 11040 M23 110

HP-C 13040 M23 130

HP-C 8240 L23 82.5

59.9 52.7 x 40 x 1 ... 60HP-C 10040 L23 100

HP-C 11040 L23 110

HP-C 13040 L23 130

Chart 1 Further dimensions upon request

Fig. 8

Cradle Spacers X mm

brown* 3.5

grey 4

yellow 5

blue 6

beige 7

black 8

Chart 2 * for very fine rovings

5

R TW

40,5

HP-R Top Rollers

1. Back and front top rollers

2. Middle top rollers

Fig. 9

Fig. 10

Maintenance of top rollers

HP-R MS (with black end caps)

HP-R SD (with red end caps)

Lubricant KLÜBER STABURAGS NBU 12/300 KP Barium-saponified complex grease based on mineral oil

Lubrication frequency 80,000 operating hours max. or 10 years 32,000 operating hours max. or 4 years

RelubricationClean the grease point thoroughly before lubrication! Use a pointed adapter to inject approx. 1,5 cm2 of lubricating grease through the hole in the end cap.

We urgently advise you not to relubricate the top rollers before the end of the lubricating interval! Wipe-off excessive grease. We suggest additional cleaning after 200 working hours. (Do not use any solvents or detergents!)

Chart 5

Top roller TW mm

Y mm

HP-R 8219 FH 82.5 122.5

HP-R 9019 FH 90 130

HP-R 10019 FH 100 140

HP-R 11019 FH 110 150

HP-R 12019 FH 120 160

HP-R 13019 FH 130 170

Chart 3 Further dimensions upon request

Top roller TW mm

Y mm

HP-R 8240 RH 82.5 122.5

HP-R 9040 RH 90 130

HP-R 10040 RH 100 140

HP-R 11040 RH 110 150

HP-R 12040 RH 120 160

HP-R 13040 RH 130 170

Chart 4 Further dimensions upon request

6

TW14

Ø 1

4Ø 2

5

Ø 1

2

40Y

Ø19

Ø14

Ø12

40

14TW

Y

Fitting and Setting Instructions for the HP-A 410 Top Weighting Arm

Fitting

Before setting the top weighting arm, center the bottom aprons on the knurls of the middle bottom rollers. Correct the position of the top weighting arms with top rollers, cradles and aprons so that the top aprons and bottom aprons are aligned.

When setting the HP-A 410 top weighting arm, make sure that the fixing screw (1) on the clamp bracket is not covered by the weighting unit of the back top roller. It must be accessible until the top weighting arm is fixed.

Setting Sequence

1. Set the weighting pressure on all top rollers.

2. Set the height on all top weighting arms.

3. Set the distances h’ and v’ as well as k’ (Figs. 1 and 3) of the top rollers of one top weighting arm (master top arm) according to the values shown in the SUESSEN setting chart. (Figs. 2, 4 or 5)

4. Transfer the setting of the top rollers of the master top arm to the gauge.

5. Transfer the setting of the top rollers to the remaining top weighting arms.

Fig. 11

7

9

1

1. Set the Weighting Pressure on All Top Rollers

Three levels of weighting pressure are possible (Fig. 12/Fig. 13).

Set the weighting pressure on the weighting units before and at the cradle while they are mounted in the top weighting arm.

Use:

– hexagon key (2)

Turn the cam to set the required pressure. The indicator on the adjusting cap (3) shows the

actual setting. (Figs. 1 and 3/Fig. 12) To set the pressure on the other top weighting

units remove them from the top weighting arm. In the works, the weighting pressure is set at the

standard values which can be seen in Figs. 1 and 3 in hatched representation.

For any alternative pressure desired, another level must be chosen.

The cam position shows the set pressure (Fig. 12/ Fig. 13).

Use:

– spanner (4 or 5)– hexagon key (2)

Unload the top weighting arm. Use the spanner (4 or 5) to loosen the screw (6)

of the weighting unit. Remove the desired weighting unit. Turn the cam by means of the hexagon key (2) to

set the required pressure. Mount the weighting unit in the same position. Check the correct position by means of the top

roller gauge (see chapter 4). Load the top weighting arm.

Weighting pressure low medium high

Fig. 13

Fig. 12

Weighting pressure low medium high

8

3 3 3

3 3 3

2. Set the Height on All Top Weighting Arms

For height setting, all top weighting arms must be loaded and all top rollers and cradles must coincide with the relevant bottom rollers. Set the top weigh-ting arm by means of the setting screw (7) on the clamp bracket so that it is parallel to the drafting plane (Fig. 14).

Use:

– gauge (8)– torque wrench (9)– screwdriver (10)

Tighten the setting screw (7) on the clamp bracket until the top weighting arm is slightly pre-tensioned.

Unload the top weighting arm and continue tight-ening the setting screw.

Load the top weighting arm. Use the gauge to check the height position of the

top weighting arm. After having set the whole machine, repeat this

procedure until the position of the top weighting arm is slightly too low. The result is a gap be-tween the underside of the top arm body and the rear end of the gauge (Fig. 15).

When tightening the fixing screw (1) on the clamp bracket, the top arm rises slightly, so that the fixed top weighting arm is in the correct position.

After setting all the top weighting arms of the machine, tighten the fixing screws of the top weighting arms with 12.5 Nm.

After tightening the fixing screws, check the height of the top weighting arms and correct it, if neces-sary.

The height of the top weighting arms is correct, when the gauge rests on the underside of the top arm body (Fig. 16).

Fig. 14

Fig. 15

9

5

9

1

7

10

8

2

46

3. Set the Distances of the Top Rollers on the Master Top Arm

Use:

– spanner (4 or 5)– a caliper gauge

The master top arm must be loaded. Use spanner (4 or 5) to loosen the screws (6) of the weighting units to be set approximately ½ turn. (Fig. 17)

Use the caliper gauge to set the top roller distanc-es according to the values shown in the SUES-SEN setting chart.

Tighten the screws.

Fig. 16

Fig. 17

10

5

46

4. Transfer the Setting of the Top Rollers of the Master Top Arm to the Gauge

Use:

– gauge (11)

– spanner (4)

Loosen the screws (12) of the gauge (11) with the spanner (4).

Place the gauge on the open top weighting arm and close it. Move the stops up to the washers of the fixing screws (13) of the relevant weighting units. (Figs. 18 and 19)

Tighten the screws (12).

The setting of the top rollers has been transferred to the gauge.

5. Transfer the Setting of the Top Rollers to the Remaining Top Weighting Arms

Unload the top weighting arm. Use spanners (4 or 5) to loosen the screws of the

weighting units approx. ¼ turn. Place gauge (11) on the open top arm and push

the top rollers onto the stop elements. Close the top arm and tighten the screws. Open the top arm and remove the gauge.

Fig. 18

Fig. 19 13

11

12

11

12

s. . .market oriented solutions . . .

Spindelfabrik Suessen GmbHDammstrasse , D-73079 Süssen, GermanyPhone +49 (0) 762 5-0 · Fax +49 (0) 762 5-367e-mail: mail@suessen.com · http: //www.suessen.com

Technische Änderungen vorbehalten. Reserva-se o direito de alteracoes tecnicas. Teknik degisimlerin hakkı bizde saklıdır.Technical modifications reserved. Reservado el derecho de introducir modificaciones tecnicas. Con riserva di modifiche tecniche.