EP0578960B2 - Device for the remote control of the grippers of a turning device - Google Patents

Description

The invention relates to a device for remote-controlled actuation of clamping elements one Turning device in sheet-guiding cylinders and on Sidewalls of rotary printing presses, wherein via the clamping elements by applying a preload a clamping connection between power transmission elements adjustable relative to each other and between control segments using a movable, at least one-piece push rod is created and maintained.

From the prior art (EP 0 377 857 A / DE 38 14 831 C1) is a device for adjusting the Rotational position of a cylinder of a turning device and for axial displacement of an actuator for the changeover the gripper control on this cylinder Sheet-fed rotary printing machine known. With this on Manual device to be operated Threaded sleeve rotated to the via a pressure ring exerted by a spring assembly on the pressure lever Reduce clamping force or cancel entirely. Further serves a depending on the axial position of the Threaded sleeve operated double lever via an annular groove to interrupt the supply circuit when the clamp between fixed and adjusting gear is released and to close the supply circuit when the clamping is restored between Fixed and variable gear. Unfavorable with this device is the fact that on the one hand a manual Operation required to remove the clamp and the interruption of an electrical Circuit done mechanically.

JP 63-173644 A are actuating cylinders for releasing a clamping force between relative mutually adjustable toothed wheels of a turning cylinder known, in which the clamping force is applied by means of a compression spring. The positioning cylinders are directly on the turning cylinder and thus rotatably arranged.

JP 63-173645 A shows actuating cylinders for moving a wedge bar. The actuators are attached to the pin of a transfer cylinder and thus rotate together with the Transfer cylinder.

The devices according to JP 63-173644 A and JP 63-173645 A have the disadvantage based on the fact that the actuating cylinders are rotatably arranged together with the cylinder need so-called rotary unions. Such rotary unions often have Sealing and leakage problems.

The object of the present invention is to develop the prior art further based on the requirements for a remotely controllable clamping device to create standardized, compact components.

The object is achieved by the features of claim 1.

The advantages that can be achieved with this solution are that the integration of Clamping devices on a turning unit in a system for machine remote control is possible. Are all components - for example a turning device - with the Equipped device according to the invention, a simultaneous remote control different components, so that the set-up times when switching from Beautifully reduced to beautiful and reverse printing. In a further embodiment of the the idea on which the invention is based, when pressure medium is applied Actuating cylinder between ring-shaped boundary surfaces a pressure chamber educated. No separate antechamber is required to build up pressure, so they build Actuators particularly compact; Furthermore, the volume of the pressure build-up required medium can be kept small. Another embodiment of the solution according to the invention provides that the movable at least one part Push rods of non-rotatably mounted actuating cylinders that can be pressurized with fluid are included. A particular advantage is the fact that on a separate the elaborate rotary joint to be provided can be dispensed with, which is the Manufacturing costs not insignificantly reduced. In the area of the pressure chamber delimiting Components do not rotate, so that there are no sealing and leakage problems occur

In a further embodiment of the invention Solution is provided that in the pressurizable Actuating cylinder bearing elements can be used are. So these are both rotating on can also be used on non-rotating push rods, without changing the geometry of the actuators requirement. This makes them universally usable and producible in larger quantities, which is the manufacturing cost belittles.

An embodiment of this solution provides that the indirectly operable via a pressure medium Actuator cylinder receives an eccentric bolt, which has a lever with a second actuating cylinder in Connection is established. In this variant, the periphery the pressure generation outside of the to be operated Clamp may be appropriate.

Further training of this solution concept sees one rotatably mounted in a bolt holder axially movable, at least one-piece push rod. The bolt holder also has a radial bearing and is supported when the eccentric pin is twisted via a thrust bearing at a stop. By a but small at the end of a lever Stellkratt can the spring force with the minimum shift an energy accumulator are canceled so that a Adjustment operation can be performed.

The invention is based on a drawing then explained in detail.

Fig. 1

einen Schnitt durch druckmittelbeaufschlagbare, ferngesteuert betätigbare Stellglieder auf einer rotierenden Druckstange,

Fig. 2

einen Schnitt durch eine an einer Speichertrommel angeflanschte Vorrichtung zur ferngesteuerten Betätigung von Klemmelementen,

Fig. 3

einen Schnittdurch eine Vorrichtung zur ferngesteuerten Betätigung einer Klemmung für ein Zahnsegment, welches an der Seitenwand einer Rotatiorsdruckmaschine gelagert ist,

Fig. 4

einen Schnitt durch eine pneumatisch beaufschlagbare Vorrichtung,

Fig. 5

eine Schnitt durch mittelbar über ein Druckmedium betätigbare Stellglieder,

Fig. 6

die Draufsicht auf eine Vorrichtung gemäß Fig. 5.

It shows:

Fig. 1

2 shows a section through actuators which can be acted on by pressure medium and actuated remotely on a rotating pressure rod,

Fig. 2

3 shows a section through a device flanged to a storage drum for remote-controlled actuation of clamping elements,

Fig. 3

1 shows a section through a device for the remote-controlled actuation of a clamp for a tooth segment, which is mounted on the side wall of a rotary printing machine,

Fig. 4

a section through a pneumatically actuated device,

Fig. 5

a section through actuators which can be actuated indirectly via a pressure medium,

Fig. 6

the top view of a device according to FIG. 5th

Fig. 1 shows a section through pressure medium, actuators actuated by remote control a rotating push rod. To maintain of the frictional connection between a fixed gear 1 and an adjusting gear 3, these are via pressure levers 5 jammed against each other. Press the pressure lever 5 the adjusting gear picked up by a pin 2 3 to a fixed gear; they act on it the ring surface 4 a. The pressure mist 5 is based a support plate 7, which by screws 6 with the Pin extension 2 is screwed. The in a short and a long lever arm divided pressure lever 5 lie with the lower lever arm in each case on a disk 11 on. Between the disc 11 and a paragraph 9a one Push rod 9, a package of springs 12 is arranged, which the necessary to maintain the clamp Preload generated. On the one hand, this affects the lower lever arms of the pressure mist 5, whereby these are located on the back of the push lever Support 5 executed cams on the support plate 7. About the short lever arm of the pressure mist 5 are - with enlarged according to the leverage ratios Clamping force - the fixed gear 1 and the adjusting gear 3 opposed to each other. On the other hand is inside of a cylinder 8, a pressure mist 8c provided on a hinge pin 8d is mounted. Presses the push rod 9 against the pressure lever 8c, this spans over the draw bolt 8b the adjustment slide 8a in its position fixed to cylinder 8.

At the end of the push rod 9 there are two nuts 15, 16, of which the nut 15 forms a stop, which is secured by the lock nut 16. By an axial bearing 17 and a radial bearing 19 is on the Push rod 9 added a piston 20, which rotationally fixed, but axially displaceable in a housing 24 is recorded. The housing 24 takes in one an axial bearing 18 on the push rod side and is via an anti-rotation device 25 with the side wall connected to the machine in a rotationally fixed manner. On a ring of the axial bearing 18 is located on the push rod 9 in axially movable pressure sleeve 13. Between the spring pack side end and paragraph 10 of the Push rod 9 is game, which the switching path 14 permits. The housing 24 has an annular groove 21 in which a sealing element 22 is embedded. The Boundary wall 23 of the piston 20 forms a Delimitation of a pressure chamber 30. The housing 24 has a feed line 26 for a pressure medium and has a further sealing element 27 that together with the sealing element 22, the pressure chamber 30 between the components movable relative to one another, piston 20 and housing 24 seals and build up pressure enables. The housing 24 completes with his Boundary surface 28 between the pistons 20 and Housing 24 annular pressure chamber 30, which is supplied with a pressure medium via the feed line 26 becomes. Through the projection 29 on the housing 24 the recess for receiving the thrust bearing 18th limited.

Since the pressure medium supply through the non-rotating, but axially displaceable housing 24 takes place, superfluous the use of a complex rotating union, which also usually brings sealing problems with it. In the solution according to the invention, the pressure builds up between two non-rotatably arranged components, namely the piston 20 and the housing 24, instead of sealing them against each other is not a problem. When exposed to a pressure medium builds through the boundary surfaces 23 and 28 formed pressure chamber 30 an overpressure. The piston 20 is supported via the thrust bearing 17 at the stop 15, which is secured by the lock nut 16, from. At the same time see the housing 24, the structure corresponding to the excess pressure in the pressure chamber 30, in the axial direction towards the spring assembly 12. About the Axial bearing 18 is the displacement of the housing 24 corresponding displacement of the pressure sleeve 13, which rests on the disc 11. Once the shift path 14 is bridged, the pressure sleeve 13 is against one Paragraph 10 of the push rod 9, which the springs 12th records. Simultaneously with the application of the pressure sleeve 13 on paragraph 10 of the push rod 9, is also on the axially displaceable disc 11 by the springs 12 generated bias removed; the pressure levers 5 and 8c are thus relieved. Now an adjustment can be made the rotational position of the adjusting gear 3 relative to Fixed gear 1 and an adjustment of the adjustment slide 8a. Via a in the feed line 26 of the Pressure medium integrated pressure switch takes place Securing the machine during the changeover phase, which when the pressure builds up the supply circuit stops interrupted so that the machine starts up open clamping is omitted. A limit switch linkage can therefore be omitted.

Fig. 2 shows a section through a on a storage drum flanged device for remote controlled Actuation of clamping elements.

For clamping a jacket 31a of a storage drum 31 against one on the spigot of the storage drum 31 arranged stop 31b is supported Package springs 12 from a housing 35. The Housing 35 is via screws 34 to the storage drum 31 flanged. The spring assembly presses one Push rod 32 via a shoulder 32a against a - based on a cam for support - longer Lever arm of a pressure lever 33. The shorter lever arm of the pressure lever 33 jams the jacket 31a of the storage drum 31 against the stop 31b on the Pin of the storage drum 31 is attached.

The piston 20 and the housing 24 are over the Axial bearings 17 and 18 and the radial bearing 19 - analog to the representation shown in Fig. 1 - on the push rod 32 added. The piston 20 is supported on the Thrust bearing 17 at the stop 15 by a lock nut 16 is secured. This through the anti-twist device 25 connected to the side wall housing 24 in takes the piston 20 rotatably but axially displaceable on. The pressure chamber 30 is formed by two annular ones Boundary surfaces 23 and 28 of the piston 20th or the housing 24 is formed. The pressure chamber 30 is through the sealing element 22 in the annular groove 21 of the piston 20 on the one hand and through the sealing element 27 of the housing 24, on the other hand, for a pressure build-up suitably sealed.

When the pressure chamber 30 is pressurized over the supply line for pressure medium 26 runs at this Embodiment of pistons 20 from housing 24 and is at the stop at the start of the pressure build-up 15 of the push rod 32. With further pressure increase the push rod 32 is moved to the left until after Covering the steep path 14 of the step 32a of the push rod 32 abuts a stop in the housing 35. So that the pressure lever 33 is at its lower end relieved and the clamping between the jacket 31a and the stop 31b of the storage drum 31 are canceled. Now it can be adjusted will.

A comparison with FIG. 1 shows that the Geometries of the actuators, i.e. pistons 20 and Housing 24 are identical; this results in a universal Usability of these components when used on several components of a turning device. Furthermore, when equipping storage drum and turning drum with the device according to the invention simultaneous actuation of several components achieve. You can also use the in the Figures 1 and 2 also shown embodiments Machines with the device according to the invention retrofit that are already delivered, so that at the delivered rotary printing presses the device according to the invention internally Rationalization potential.

Fig. 3 shows a section through a device for remote controlled actuation of a clamp for a Tooth segment, which on the side wall of a rotary printing press is adjustable.

In this embodiment there is a bell-shaped one Body 36 - or a correspondingly shaped one Bracket - on the side wall 38 one Rotary printing press. The bell-shaped body 36 can be attached to the side wall 38 by screws 37 be; to save space, he can also in this be let in, thereby shortening the Push rod segment 39 is accessible. On the Push rod segment 39 is a shoulder 40. Between paragraph 40 and a housing-fixed Stop 41th which limits the travel 14 is on the Push rod segment 39 at least one spring 12 added. The piston 20 is with screws 44 connected to the bell-shaped body 36. while the housing 24 on the end of the push rod segment 39 is centered and with a shoulder on the heel 40 is present.

The push rod segment 39 is at its rear, the part facing the toothed segment 43 with a Provide nose 42, which when moving the push rod segment 39 the tooth segment in the axial direction 43 clamps on the side wall 38 or it to Releases adjustment.

When pressurized by the ring-shaped extending boundary surfaces 23 and 28 formed Pressure chamber 30 moves the housing 24 in axial Direction away from the piston 20. The concern of the housing 24 on the shoulder 40 of the push rod segment 39 causes compression of the springs 12 upon axial displacement of the pressure segment 39 by pressurization the pressure chamber 30. At axial Displacement of the push rod segment 39 gives the Nose 42 free the tooth segment 43, which then adjusts can be. When chamber 30 is depressurized is the nose 12 against the tooth segment by the springs 43 pressed, causing its pivot position is locked. When the pressure chamber is pressurized 30 the switching path 14 through the stop 41st certainly. The short switching path in this configuration is in other constructive applications of the invention Device definitely for longer Snap paths can be extended. As in the comments on 1 and 2 already mentioned, pistons 20 and Housing 24 provided with sealing elements 22 and 27, which are taken up by ring grooves around the To ensure pressure build-up in the pressure chamber.

In the embodiments shown in FIGS. 1 to 3 are cases for the housing 24 and the piston 20 shown, the one of rotating push rods 9, 32nd are included in these via storage elements, while in Fig. 3 an arrangement on one is not rotating push rod segment 39 is shown. This shows the universal usability of the actuators, the equipping several components of a turning device allow, and their simultaneous remote control enable at the push of a button.

Fig. 4 shows a section through a pneumatic loadable device. Different from the previous ones described embodiments of the invention Device are in this variant Components with larger pressure chamber boundaries shown. A rotating push rod 9 is in a housing 48 rotatably received via radial bearing 19, while a piston 46 via an axial bearing 47 acts on a pressure sleeve 45. The pressurization the pressure chamber 30, on the one hand, causes the system to Housing 48 via the axial bearing 17 at the stop 15, while on the other hand the piston 46 via the thrust bearing 47 moves the pressure sleeve 45 against the disk 11. After shifting the pressure sleeve 45 by the distance of the switching path 14 is that applied by the springs 12 Load the pressure lever 5 lifted and the adjustment of the rotational position of the adjusting gear 3 possible.

This variant is for extensive applications provided that compressed air is already in the periphery is used and enough space is available is. In this variant, a combination the possible uses with a hydraulically loadable variant expanded considerably.

Finally, FIGS. 5 and 6 show a section or a top view of indirectly via a print medium actuable actuators.

A pin bearing is on a rotating push rod 49 52 rotatably supported by radial bearing 19. There is also between a threaded ring 50 and the bolt bearing 52 an axial bearing 17 is provided. The pin bearing takes one over roller bearings Eccentric bolt 53, the end of each with a role 54 is equipped. The eccentric bolt 53 is in the center provided a lever 55, at the end of an actuating movement through a commercially available second actuating cylinder 56 takes place. On the pin bearing 52 is a Adjusting body 51 centered on the end faces Create eccentrically mounted rollers 54. To the Threaded ring 50 when mounting against a pin To secure rotation, are in the actuator 51 and in the Bolt bearing 52 bores 57 are provided, one Allow access to threaded ring 50. At a Pivotal movement of the lever 55, triggered by pressurization of the second actuating cylinder 56, the eccentric bolt 53 is rotated. The rollers 54 act on the end faces of the actuating body 51 and move this - relative to the pin bearing 52 and Push rod 49 - in the axial direction. About the thrust bearing 18 a pressure sleeve 13 is correspondingly axially displaced, so that this - similar to the explanations outlined above - The preload of a spring assembly can cancel and perform an adjustment operation releases. Through a suitable choice of leverage ratios can indirectly with this one Variant that can be actuated by the pressure medium with a small size second actuating cylinders 56 large actuating forces are generated.

REFERENCE SIGN LIST

1

Fixed gear

2nd

Pin approach

3rd

Adjusting gear

4th

Ring surface

5

Push lever

6

Screws

7

Support plate

8th

cylinder

8a

Adjustable slide

8b

Draw bolt

8c

Push lever

8d

Hinge pin

9

Push rod

9a

Push rod heel

10th

paragraph

11

disc

12th

feather

13

Pressure sleeve

14

Switching path

15

attack

16

Lock nut

17th

Thrust bearing

18th

Thrust bearing

19th

Radial bearing

20th

piston

21

Ring groove

22

Sealing element

23

Boundary surface

24th

casing

25th

Anti-rotation device

26

Supply line for pressure medium

27

Sealing element

28

Boundary surface

29

head Start

30th

Pressure chamber

31

Storage drum

31a

coat

31b

attack

32

Push rod segment

32a

Paragraph push lever

33

Push lever

34

Screws

35

casing

36

Bell jar

37

screw

38

Side wall

39

Push rod segment

40

paragraph

41

attack

42

nose

43

Tooth segment

44

screw

45

Pressure sleeve

46

piston

47

Thrust bearing

48

casing

49

Push rod

50

Threaded ring

51

Actuator

52

Pin bearing

53

Eccentric bolt

54

role

55

lever

56

second actuating cylinder

57

Holes

Claims (10)

1. Device for the remotely controlled actuation of clamping elements (12) of a turning device in sheet-guiding cylinders and on side walls of rotary printing machines, a clamping connection between mutually adjustable force-transmission elements and between control segments being produced and maintained via the clamping elements (12), by being acted on by a prestressing force, by means of a movable, at least single-part thrust rod (9, 39, 49), characterized in that an actuating cylinder (20, 24, 46, 48), which is arranged in a rotationally fixed manner, can be acted on, via a feed line (26) with pressure monitors, by a pressure medium and, in this arrangement, moves a transmission element (13, 32a, 40, 45) such that the clamping produced by the clamping elements (12) is eliminated.
2. Device according to Claim 1, characterized in that, when the actuating cylinder (20, 24; 46, 48) is acted on by a pressure medium, a pressure chamber (30) is formed between annular boundary surfaces.
3. Device according to Claim 2, characterized in that at least one pressure chamber (30) can be acted on, via a feed line (26), by the actuating cylinder (20, 24; 46, 48), which can be acted on by a pressure medium.
4. Device according to Claim 1, characterized in that the movable, at least single-part thrust rod (9, 39) indirectly receives the actuating cylinder (20, 24; 46, 48) which is mounted in a rotationally fixed manner and can be acted on by a pressure medium.
5. Device according to Claim 4, characterized in that mounting elements (17, 18, 19; 47) can be introduced in the actuating cylinder (20, 24; 46, 48), which can be acted on by a pressure medium.
6. Device according to Claim 1, characterized in that the actuating cylinder (24), which can be acted on by a pressure medium, is centred and guided by the movable, at least single-part thrust rod (39).
7. Device according to Claim 4, characterized in that a mount (52) which can be actuated indirectly via a pressure medium receives an eccentric bolt (53) which is in connection, via a lever (55), with a second actuating cylinder (56).
8. Device according to Claim 1, characterized in that the movable, at least single-part thrust rod (49) is mounted rotatably in a bolt mount (52).
9. Device according to Claim 7, characterized in that the eccentric bolt (53) receives a roller (54) at each end.
10. Device according to Claim 8, characterized in that the bolt mount (52) exhibits a radial bearing (19) and, upon turning of the eccentric bolt (53), is supported on a stop (50) via an axial bearing (17).

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