METHOD FOR ADJUSTING A PHASE OFFSET OF A MULTIPLE-ACTION MECHANICAL TRANSVERSE SHAFT PRESS, AND A PRESS ACCORDING TO SAID METHOD

Abstract

A method for an adjustment of a phase shift of the movement of at least one internal ram, which is pivotally mounted by means of a drive shaft, in relation to the movement of at least one external ram, which is pivotally mounted by means of a drive shaft, of a multiple-action mechanical transverse shaft press. According to the invention, the method steps effected are a) stopping, delaying or accelerating at least one drive shaft and b) adjusting a phase angle of the at least one internal ram in relation to a phase angle of the at least one external ram by means of at least one electronically controlled rotational movement of at least one drive shaft.

Claims

1. A method for an adjustment of a phase shift of the movement of at least one first ram, for example internal ram, which is pivotally mounted by means of at least one drive shaft, in relation to the movement of at least one second ram, for example external ram, which is pivotally mounted by means of at least one drive shaft, of a multiple-action mechanical transverse shaft press, comprising the following method steps: a) stopping, delaying or accelerating at least one drive shaft; and b) adjusting a phase angle of the at least one first ram, for example internal ram, in relation to a phase angle of the at least one second ram, for example external ram, by means of at least one electronically controlled rotational movement of at least one drive shaft.

2. A method for an adjustment of a phase shift of a multiple-action mechanical transverse shaft press, wherein the multiple-action mechanical transverse shaft press includes at least one first drive shaft for at least one first ram and at least one second drive shaft for at least one second ram, and wherein the rotational movements of the drive shafts run phase shifted about a phase angle in relation to one another, wherein the phase shift is adjusted as a result of altering the phase angle by means of accelerating and/or delaying at least one drive shaft in a temporary manner.

3. The method as claimed in claim 1, wherein at least one drive shaft is driven by means of a servomotor.

4. The method as claimed in claim 1, wherein a rotational movement of each drive shaft is effected independently of one another by means of at least one electronic control unit each.

5. The method as claimed in claim 1, wherein a rotational movement of each drive shaft is effected by means of a common electronic control unit.

6. The method as claimed in claim 1, wherein individual actuation of a respective direct drive of each ram is effected within one operating cycle.

7. The method as claimed in claim 1, wherein the phase shift is adjusted during a stroke of at least one ram.

8. A multiple-action mechanical transverse shaft press, wherein a movement sequence is effected as claimed in claim 1.

9. The method as claimed in claim 1, wherein the phase shift is adjusted during a pendulum stroke of at least one ram.

10. The method as claimed in claim 2, wherein the first ram is an internal ram and the second ram is an external ram.

11. The method as claimed in claim 2, wherein at least one drive shaft is driven by means of a servomotor.

12. The method as claimed in claim 1, wherein at least one drive shaft is directly driven by means of a servomotor.

13. The method as claimed in claim 2, wherein at least one drive shaft is directly driven by means of a servomotor.

14. The method as claimed in claim 2, wherein a rotational movement of each drive shaft is effected independently of one another by means of at least one electronic control unit each.

15. The method as claimed in claim 2, wherein a rotational movement of each drive shaft is effected by means of a common electronic control unit.

16. The method as claimed in claim 2, wherein individual actuation of a respective direct drive of each ram is effected within one operating cycle.

17. The method as claimed in claim 2, wherein the phase shift is adjusted during a stroke of at least one ram.

18. A multiple-action mechanical transverse shaft press, wherein a movement sequence is effected as claimed in claim 2.

19. The method as claimed in claim 2, wherein the phase shift is adjusted during a pendulum stroke of at least one ram.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Further configurations of the present invention are produced from the drawings and from the following description of an exemplary embodiment, in which:

[0037] FIG. 1 shows a schematic representation of a multiple-action mechanical transverse shaft press; and

[0038] FIG. 2 shows a sectioned representation of the multiple-action transverse shaft press shown in FIG. 1.

DETAILED DESCRIPTION OF THE INVENTION

[0039] FIG. 1 shows a schematic representation of a multiple-action mechanical transverse shaft press 1. A dual-acting press is shown in the exemplary embodiment. This includes two drive shafts 2, 12 which are arranged in parallel. The two drive shafts 2, 12 are in each case driven by means of one drive 3, 13 each. In addition, the multiple-action mechanical transverse shaft press 1 includes eccentrics, which are not shown in any more detail here and are connected to an internal ram and an external ram, neither of which are shown in any more detail here either, and to the drive shafts 2, 12 and can be moved by means of the associated drives 3, 13. Additionally shown in the exemplary embodiment are two control units 7, 17, by way of which the respective drives 3, 13 are controllable or regulatable. It is, however, also possible to control or regulate by means of just a so-called press controller or a control system.

[0040] The control of the drives 3, 13 is effected in such a manner that a phase angle of second ram 5, 15, for example external ram, to first ram 4, for example internal ram, is adjusted by means of the eccentrics 6, 16, 26. It is insignificant, in this case, whether a first drive shaft 2 of the first ram 4, for example internal ram, or the second drive shaft 12 of the second ram 5, 15, for example external ram, is moved.

[0041] Apart from this, more than two drive shafts (2, 12), which correspondingly drive more than two rams, can also be present.

[0042] FIG. 2 shows a sectioned view of the multiple-action transverse shaft press 1 shown in FIG. 1. In this connection, it can be seen that internal ram 4 and external ram 5, 15 are connected to the eccentrics 6, 16 and 26.

LIST OF REFERENCES

[0043] 1 Multiple-action mechanical press [0044] 2 First drive shaft [0045] 3 Drive [0046] 4 First ram [0047] 5 Second ram [0048] 6 Eccentric [0049] 7 Electronic control unit [0050] 12 Second drive shaft [0051] 13 Drive [0052] 15 External ram [0053] 16 Eccentric [0054] 17 Electronic control unit [0055] 26 Eccentric