EP1813392B1 - Tool for mounting an O-ring in a mounting groove of a jet beam - Google Patents

Abstract

The device has a releasing device adjacent to a clamping device to insert an O-ring into a bearing groove of a nozzle beam (1.1) and/or of a housing of the beam. The releasing device has a releasing unit, which is provided with a contact surface, on a side. The contact surface is moved against the O-ring in a specific position of the releasing unit. The contact surface forms an angle of less than 90 degree with a surface of the releasing unit.

Description

The invention relates to a device for mounting an elongated seal or an O-ring in a receiving part of a nozzle beam or a housing of the nozzle beam of a device for generating jet jetting fluid streams by means of a mounting device to the at least one seal (O-ring ) receiving tensioning device on which the seal is biased positioned, wherein in addition to the tensioning device for the seal, a pressure rail is provided with the aid of the seal (O-ring) provided in the nozzle bar or in the housing of the nozzle beam receiving part (storage groove) can be used.

There is already known a device for mounting an O-ring seal ( EP 0909587 B1 ), which can be introduced into a repair groove by means of a positioning strip or a tensioning device for the gasket and positioned in the area of the bearing groove receiving the gasket so that the gasket can be manually pressed from this position into the bearing groove. Since the seal can have a length of about 1000 mm and more, it requires for mounting the seal at least two operators, the one operator on one side of the system pushes the positioning strip with the prestressed seal in an opening provided in the nozzle beam and the Seal above the bearing groove for receiving the seal positioned so that it can strip part of the seal from the provided on the positioning strip spacers and then press into the provided on one side of the nozzle beam bearing groove. The same operation must be performed by a second operator on the other side of the system. This assembly is cumbersome and time consuming.

The invention has for its object to form a device for mounting an elongated seal or O-ring in a receiving part (storage groove) of a nozzle beam and simplify that the assembly can be carried out in a very short time with only one operator.

The object is achieved according to the invention with the features according to the characterizing part of claim 1. With the help of the tensioning device and the triggering device can be easily with just one operator of the O-ring in the nozzle bar provided in the mounting hole just above the corresponding bearing groove for receiving the 0th Position rings and then slide them off the spacer on the operator-side by means of the trigger on the spacer, so that this part of the seal can easily slip into the bearing groove of the seal due to its bias. On the second, the operator-facing side of the system then the other part of the seal can be manually pushed into the bearing groove. This type of installation is very time-saving and can be performed with only one operator.

For this purpose, it is advantageous that the Auslösevornchtung and the O-ring clamping device consist of at least one elongated holder, which can be mutually at least partially brought into abutment and are movable in parallel, wherein the triggering device and the O-ring clamping device associated with a pressure rail is, which is also displaced in parallel. By adjusting the triggering device with respect to the O-ring clamping device, the O-ring can be pushed down or pushed down by a spacer in a simple way and be introduced into a bearing groove with the aid of the pressure rail.

For this purpose, it is advantageous that the contact surface of the triggering element forms an angle α of less than 90 ° with a surface of the triggering element

It is also advantageous that the contact surface of the trigger element with the surface of the trigger element forms an angle α ° between 30 ° and 60 °. If the contact surface has a great inclination, the actuating forces for adjusting the triggering device can become small, which is the case in particular in the case of very long release devices.

According to a preferred embodiment of the solution according to the invention, it is finally provided that in the region of the one end of the O-ring clamping device a slot opening open to the front is provided, through which the triggering element can at least partially extend and move in order to bear against a part of the O-ring clamping device. To come to the plant and to push out the O-ring from an annular groove provided in a spacer.

Of particular importance for the present invention is that in addition to the tensioning device for the seal a triggering device is provided, with the aid of the seal (O-ring) can be inserted into the provided in the nozzle bar or in the housing of the nozzle beam receiving part (storage groove), wherein the triggering device and the O-ring clamping device form a mounting device, at least partially mutually engageable, are parallel displaceable and have an overall height which corresponds approximately to a provided in the nozzle bar or in the housing of the nozzle beam repair groove and the mounting unit in the repair groove is adjustable so that the O-ring with the help of the inclined extending contact surface of the triggering device in its nozzle strip sealing position is adjustable.

With the help of the pressure rail, the O-ring seal is pressed after reaching the space above the bearing groove for receiving the O-ring in the direction of the bearing groove and pushed with the help of the release device of the spacers.

In connection with the design and arrangement according to the invention, it is advantageous that the distance between the spacers is greater than the distance between two ring parts of the closed or one-piece 0-ring, wherein strands of the O-ring seal are approximately parallel to each other. This ensures that the O-ring does not come off the spacers when inserting the mounting device in the mounting hole in the nozzle beam. do not release the device into the mounting hole in the nozzle beam from the spacers.

Further advantages and details of the invention are explained in the patent claims and in the description and illustrated in the figures.

• Fig. 1 einen Längsschnitt durch das Gehäuse des Düsenbalkens,
• Fig. 2 : einen verkürzt dargestellten Düsenbalken mit eingeschobener O-Ring-Spannvorrichtung, Druckschiene und Auslösevorrichtung,
• Fig. 3 einen Teilschnitt des Unterteils gemäß Fig. 1 mit eingeschobener O-Ring-Spannvorrichtung und einer Auslösevorrichtung,
• Fig. 4 : das Unterteil gemäß Fig. 2 mit durch die Auslösevorrichtung abgestreiftem O-Ring,
• Fig. 5 : das Unterteil gemäß Fig. 2 , nachdem die Montagevorrichtung herausgezogen und der Düsenstreifen eingelegt ist,
• Fig. 6 einen Querschnitt des Düsenbalkens gemäß Fig. 1,
• Fig. 7 einen Querschnitt des Unterteils des Düsenbalkens mit der in die Reparaturnut eingeschobenen O-Ring-Spannvorrichtung der Montageinrichtung,
• Fig. 8 : einen Querschnitt gemäß Fig. 7 mit der über dem Längsblech eingeschobenen Druckschiene und einem in die Lagernut eingeführten O-Ring,
• Fig. 9 einen Querschnitt des Unterteils des Düsenbalkens gemäß Fig. 4 mit eingepasstem, entspanntem O-Ring,
• Fig. 10 einen Querschnitt des Düsenbalkens gemäß Fig. 5 hier mit eingeschobenem Düsenstreifen,
• Fig. 11 : eine Darstellung einer Spannvorrichtung zur Aufnahme von zwei mit Abstand zueinander angeordneten
• Widerlagern zur Aufnahme des O-Rings sowie ein Stellteil mit einem pyramidenförmig ausgebildeten Auslöseelement,
• Fig. 12 : eine Teilansicht der Auslösevorrichtung bzw. der Spannvorrichtung mit in das Widerlager eingelegtem O-Ring,
• Fig. 13 : eine Draufsicht der Montageeinrichtung mit vorgespanntem O-Ring,
• Fig. 14 : den Ablösevorgang des O-Rings von einem Abstandshalter,
• Fig. 15 : eine Darstellung der Auslösevorrichtung mit Auslöseelements in einem größeren Maßstab.

Showing:

• Fig. 1 a longitudinal section through the housing of the nozzle beam,
• Fig. 2 : a shortened nozzle bar with inserted O-ring clamping device, pressure rail and release device,
• Fig. 3 a partial section of the lower part according to Fig. 1 with inserted O-ring clamping device and a triggering device,
• Fig. 4 : the lower part according to Fig. 2 with stripped by the trigger device O-ring,
• Fig. 5 : the lower part according to Fig. 2 after the mounting device has been pulled out and the nozzle strip has been inserted,
• Fig. 6 a cross section of the nozzle bar according to Fig. 1 .
• Fig. 7 a cross section of the lower part of the nozzle beam with the inserted into the repair groove O-ring clamping device of the mounting device,
• Fig. 8 a section according to Fig. 7 with the pressure rail inserted above the longitudinal plate and an O-ring inserted into the bearing groove,
• Fig. 9 a cross section of the lower part of the nozzle beam according to Fig. 4 with fitted, relaxed O-ring,
• Fig. 10 a cross section of the nozzle bar according to Fig. 5 here with inserted jet strip,
• Fig. 11 : An illustration of a clamping device for receiving two spaced-apart
• Abutments for receiving the O-ring and an actuating part with a pyramid-shaped trigger element,
• Fig. 12 a partial view of the triggering device or the clamping device with inserted into the abutment O-ring,
• Fig. 13 FIG. 2 is a top view of the assembly device with biased O-ring. FIG.
• Fig. 14 : the detachment process of the O-ring from a spacer,
• Fig. 15 : An illustration of the triggering device with triggering element on a larger scale.

A housing or a nozzle bar 1.1 for a nozzle strip 14 consists of an upper part 1, which is bolted to a lower part 2 by means of screws, not shown, from below. The upper part 1 has two holes, of which the upper is designed as a pressure chamber 4 and the lower pressure distribution as the chamber 5. Both pressure chambers 4, 5 are open at one end face and screwed liquid-tight by means of a respective lid 6 and 7. At the other end face, the pressure chamber 4 has an opening 4.1, through which the pressurized liquid is introduced. A triggering device 32, which will be explained in more detail below, as well as an O-ring tensioning device 27, can consist of at least one respective elongated mounting, which are mutually displaceable in parallel. The brackets are designed as sheet metal strips and can be resilient. The triggering device 32 and the O-ring clamping device 27, together with an elongate pressure rail 38 (FIG.), Form a mounting device for facilitating the installation of a seal in a nozzle beam or housing of the nozzle beam 1.1. The pressure rail can have approximately the same length as the tensioning device

The pressure distribution chamber 5 ( Fig. 6 ) is also screwed liquid-tight at the front by a lid 5 '. The two pressure chambers 4, 5 are separated by an intermediate wall 8 (FIG. Fig.1 ) separated by a plurality and provided in the intermediate wall 8 through holes 9 ( Fig. 6 ), so that the pressure fluid flowing into the pressure chamber 4 flows uniformly over the length into the pressure distribution chamber 5. The pressure distribution chamber 4 is open at the bottom. This is a narrower

Slot 10 ( Fig. 6 ), which extends over the length of the nozzle strip 14.

According to Fig. 6 the upper part 1 is firmly screwed to the lower part 2 and is sealed by means of an O-ring 11. the O-ring 11 surrounds the slot 10 provided in a spring projection 23, which opens into a corresponding groove 24 of the lower part 2. In the bottom of the groove 24 of the lower part 2, in turn, a bearing groove 12 "is introduced, into which an O-ring 12 for sealing the in Fig. 10 shown nozzle strip 14 is inserted. Below the liquid flow holes 9 and the slot 10, a slot 13 is also provided in the lower part 2, which is only slightly wider in its upper region than the width of the effective nozzle openings of the nozzle strip fourteenth

In the region of the lower end of the upper part 1, the receiving part or the spring projection 23 with a recess 25 (FIG. Fig. 7 ) is provided, in which the nozzle strip 14 is inserted. When pressure medium, the nozzle strip 14 is pressed by the fluid pressure against the O-ring 12, so that the nozzle strip 14 is sealed to the slot 13 out.

If the O-ring 12 is to be replaced, then the lower part 2 no longer needs to be released from the upper part 1 as before. For this purpose (according to Fig. 10 A repair groove 26 bounded by side edges is provided in the receiving part or in the spring projection 23, which extends over the entire length of the nozzle strip 14 or the bearing groove 12. The height of the repair groove 26 is slightly larger than the diameter or the thickness of the O-ring 12. The distance between spacers 29 and 30 is greater than the distance between two ring parts 12.3 of the closed or one-piece O-ring 12, wherein strands 12.5 of the O-ring seal 12 extend approximately parallel to each other.

To assemble the O-ring 12, the O-ring tensioning device 27 corresponding in size can be inserted into the repair groove 26, which is designed according to this embodiment as a longitudinal plate. The O-ring tensioner 27 is substantially the nozzle strip 14. It points to a Side or on its underside 27.1 two spaced apart, outwardly projecting, cylindrical spacers 29 and 30 with semicircular annular grooves 29.1 on, in the ( Fig. 9 ), the O-ring 12 can be inserted under tension. The diameter of the two provided in the lower part 2 Lagernuten 12 "correspond approximately to the diameter of the annular grooves 29.1 in the two spacers 29 and 30 so that, as explained in more detail below, the O-ring 12 is depressed by the spacers 29 and 30 and in the Stock groove 12 "can be inserted.

Further, a width B _{2 of} the longitudinal plate or the O-ring clamping device 27 is slightly larger than the total width B ₁ of two adjacent O-ring parts 12.1 ( Fig. 12 ), so that the tensioned, one-piece 0-ring 12 ( Fig. 13 ) is covered upwardly by the O-ring tensioning device 27 and thus also held on the sheet metal strip in order to be inserted more easily into the bearing groove 12 " ( Fig. 2 ) is provided, with the aid of which the O-ring clamping device 27 in the groove 24, as explained below, on or can be pushed out. As in particular from Fig. 2 shows, this is the bearing groove 12 "provided for the assembly of the O-ring 12 at the end faces of the nozzle beam 1.1, each with an opening 12.2.

To Fig. 13 the distance between the spacers 29, 30 for receiving the O-ring 12 is greater than the length of the closed O-ring 12, so that in this way the O-ring 12 has to be slightly stretched or biased to be in the annular grooves 29.1 the spacers 29 and 30 can be used.

In addition to the O-ring clamping device 27 and the triggering device 32 belongs to the mounting device, the pressure rail 38, according to Fig. 8 is inserted above the triggering device 32 in the opening 12.1.

According to Fig. 15 the triggering device 32 on a trigger element 35 with two inclined surfaces 34, 34.1. The surface 34.1 is a sliding surface or contact surface, which can be brought into abutment against the ring member 12.3 of the O-ring 12 during adjustment of the triggering device 32 and this according to Fig. 15 presses down, if this is the resting on the O-ring tensioning device 27 triggering device 32 within the groove 24 relative to the then fixed O-ring clamping device 27 according to Fig. 15 is moved a little to the left. The contact surface 34 of the trigger element 35 forms an angle α of less than 90 ° with a surface 17 of the trigger element 35.

The left spacer 29 is according to Fig. 12 provided at its one end with a slot opening 16 open at the front, through which the trigger element 35 extends and can move according to arrow 15 to come against the ring member 12.3 of the O-ring seal 12 and this, as explained below to push out of the annular groove 29.1.

At the ends of the longitudinal plate of the triggering device 32 is also a manually detectable insertion end 31.1. By the adjusting movement of the triggering device 32 moves the ring member 12.3 of the O-ring 12 according to Fig. 14 along the sliding surface or the contact surface 34 of the trigger element 35 along and moves according to arrow 36 as far down until it is inserted or engaged in the bearing groove 12 ".

The procedure of introducing the O-ring 12 into the bearing groove 12 "is schematically in the Fig. 2 to 5 illustrated.

After according to Fig. 13 the O-ring 12 is mounted on the spacers 29 and 30, the O-ring clamping device 27 and the triggering device 32 are inserted together in the repair groove 26 above the groove 24 as indicated by arrow 37 until they are in accordance with the position Fig. 2 . 7 achieved. For this purpose, the repair groove 26 has a height which is slightly greater than H _{1 of} the entire Triggering device 32, so that the triggering device 32 can be pushed over a bottom 26.1 of the repair groove 26 ( Fig. 4 ).

With the O-ring tensioning device 27 or the positioning strip and the triggering device 32, the O-ring 12 can be inserted through the opening 2.1 in the groove 24 until the O-ring tensioning device 27 against a provided at the end of the groove 24 Stop surface comes to rest. In this position, the O-ring 12 is according Fig. 9 positioned exactly above the bearing groove 12 ". Now the pressure rail 38 is inserted into the opening 12.1 above the triggering device 32 (FIG. Figure 8 ) and thereby pushes the O-ring 12 into the bearing groove 12 ". The bearing groove 12" is according to FIG Fig. 7 slightly tapered towards the top, so that in this way the depressed O-ring is held securely in the bearing groove. Now the triggering device 32 is moved to the left as shown by arrow 37 on the clamping device 27 and the O-ring is pressed by means of the triggering device 32 of the spacer 29 . The triggering device 32 is according to Fig. 11 and 15 from a similar longitudinal plate as the longitudinal plate of the O-ring clamping device 27. The O-ring clamping device 27 and the triggering device 32 and the pressure rail also have approximately the same length.

On the right side of the O-ring tensioning device 27 can now (according Fig. 3 ), the O-ring 12 is readily removed manually from the spacer 30 and pressed into the bearing groove 12 ", since the repair groove 26 in the region of the right bearing groove 12" is easily accessible via the opening 12.2, while the left part of the groove 24 is not readily accessible. For the assembly of the O-ring 12 without trigger 32 was previously required two people, namely a person on the right and the other person on the left side of the plant to the O-ring 12 in both bearing grooves 12 "on the left and to bring in the right side.

Now, first the pressure rail 38 can be pushed out of the opening 12.1 again and thereby gives the way for the mounting unit up and the opening 12.1 free ( Figure 9 ), so that the tensioning device and the triggering device removed and the nozzle strip 14 can be inserted into the groove 24 ( Figure 10 ).

LIST OF REFERENCE NUMBERS

1

top

1.1

Nozzle bar, nozzle bar housing

2

lower part

4

Bore, pressure chamber, pressure distribution chamber

4 '

opening

5

Bore, pressure chamber, pressure distribution chamber

6

cover

7

cover

8th

intermediate wall

9

Flow bore

10

slot

11

O-ring

12

Sealing element, O-ring

12.1

O-ring part

12.2

opening

12 "

bearing groove

12.4

Plant part of the storage groove 12 "

12.5

Strand of the O-ring seal

13

slot

14

Nozzle strip, nozzle plate,

15

arrow

16

slot opening

17

surface

23

Receiving part, spring projection

24

groove

24.2

Room of the groove 24

25

recess

26

repair groove

26.1

Bottom of the repair groove 26

27

O-ring clamping device, longitudinal plate, positioning strip

27.1

bottom

29

spacer

29.1

ring groove

30

spacer

31

insertion end

31.1

insertion end

32

triggering device

34

Surface, sliding surface, contact surface

34.1

Surface, sliding surface, contact surface

35

triggering element

36

arrow

37

arrow

38

pressure rail

39

Contact surface for clamping device at the end of the repair groove

B ₁

width

B ₂

width

H ₁

height

Claims (6)

1. Mounting apparatus to mount a seal formed as an O-ring (12) in a receptacle part formed as a long groove (12") in a jet nozzle (1.1) of an apparatus for generating fluid jets for jet matting of fibers, which comprises at least one tensioning apparatus (27) to accept the O-ring (12), onto which the O-ring (12) is positioned in a tensioned state, whereby in addition to the tensioning apparatus (27) for the O-ring, a pressure rail (38) is present, with the assistance of which the O-ring (12) can be placed in the intended mounting groove (12") in the jet nozzle or in the housing of the jet nozzle (1.1),
   characterized in that,
   a trigger mechanism (32) (whereby the trigger mechanism (32) as well as the O-ring tensioning apparatus (27) each exists as a lengthwise retaining means), which can be brought at least partially in abutment to and can be shifted parallel to one another, whereby the pressure rail (38) is associated to the trigger mechanism (32), and
   the trigger mechanism (32) comprises a trigger element (35) on one side, which is provided with at least one abutting area (34), which can be brought in abutment against the O-ring (12) in a certain position of the trigger element (35).
2. Apparatus according to claim 1,
   characterized in that
   the abutting area (34) of the trigger element (35) forms an angle □ with the surface (17) of the trigger element (35) that is smaller than 90°.
3. Apparatus according to claim 1 or 2,
   characterized in that
   the abutting area (34) of the trigger element (35) forms an angle □° with the surface (17) of the trigger element (35) that is between 30° and 60°.
4. Apparatus according to one of the previous claims,
   characterized in that
   a slot opening (16) open toward the front is provided in the area of one of the ends of the O-ring tensioning apparatus (27), through which the trigger element (35) extends at least partially and can be moved, to press a portion of the O-rings (12) out of a ring groove (29.1) provided in a spacer mechanism (29).
5. Apparatus according to one of the previous claims,
   characterized in that
   at least the trigger mechanism (32) and the O-ring-tensioning apparatus (27) form one mounting apparatus, and the total height corresponds approximately to a repair groove (26) provided in the jet nozzle or in the housing of the jet nozzle (1.1), so that the mounting unit may be moved within the repair groove (26) in such a manner, that the O-ring (12) can be moved with the assistance of the repair groove (26) in such a manner, so that the O-ring (12) may be positioned with the assistance of the mounting unit in the area of the mounting groove (12") and can be moved in its position sealing a jet stream (14) with the assistance of the trigger mechanism (32).
6. Apparatus according to one of the previous claims,
   characterized in that
   the distance between the spacer mechanisms (29 and 30) is larger than the distance between two ring portions (12.3) of the closed or one-piece O-ring (12), wherein the strands (12.5) of the O-ring seal (12) run approximately parallel to one another.

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