Foil reel mounting device, supporting module, stamping machine, handling tool and method for loading and unloading a reel of stamping foil

Patent metadata

Field	Value
Publication number	US-11020958-B2
Application number	US-201615764362-A
Country	US
Kind code	B2
Filing date	Oct 14, 2016
Priority date	Oct 28, 2015
Publication date	Jun 1, 2021
Grant date	Jun 1, 2021

Abstract

A foil reel mounting device for supporting a reel of stamping foil in a supporting module. The device includes a support having a recess to receive an axle of the reel of stamping foil. A retaining element mounted on the support and arranged to move between a closed position, in which the retaining element retains the axle of the reel in the recess, and an open position, in which the retaining element releases the axle of the reel from the recess. The retaining element is biased towards the closed position. Also, a supporting module has at least one foil reel mounting device and a stamping machine includes a supporting module or at least one foil reel mounting device. A method for loading and unloading a reel of stamping foil with such at least one foil reel mounting device is also disclosed.

First claim

The invention claimed is:

1. A foil reel mounting device configured to support a reel of a foil in a supporting module, the reel of foil having an axle, and the mounting device configured to be fixed to the supporting module and comprising:
a support having a recess with an access to the recess positioned on a bottom of the recess and the recess configured to receive the axle of the reel;
a retaining element mounted on the support, the retaining element being configured to move between:
a closed position in which the retaining element is configured to retain the axle of the reel in the recess by supporting a weight of the reel, and
an open position in which the retaining element is configured to release the axle of the reel from the recess,
wherein the retaining element is biased towards the closed position.

2. The foil reel mounting device according to claim 1 , wherein the retaining element comprises a cam surface located and configured to cooperate with the axle of the reel to facilitate entry of the axle of the reel up into the recess by the axle of the reel displacing the retaining element from the closed position to the open position.

3. The foil reel mounting device according claim 2 , wherein the cam surface presents a general shape of a ramp.

4. The foil reel mounting device according to claim 1 , wherein the retaining element comprises a lever pivotally mounted on the support.

5. The foil reel mounting device according to claim 1 , wherein the retaining element is biased towards the closed position by gravity acting on the retaining element.

6. The foil reel mounting device according to claim 4 , wherein the retaining element has a general shape of “C” including a closing end of the C shape configured for obstructing the access to the recess in the closed position,
wherein the retaining element has a rotation axis thereof disposed in an opposite end of the retaining element.

7. The foil reel mounting device according to claim 1 , further comprising a bearing configured to support the axle of the reel,
wherein the bearing is formed in a closing end of the retaining element and is configured to close the recess in the closed position.

8. The foil reel mounting device according to claim 1 , further comprising at least one holding member movable between an unlocked position and a locked position,
wherein the holding member cooperates with the retaining element to prevent movement of the retaining element to the closed position, and the holding member being biased towards the unlocked position.

9. The foil reel mounting device according to claim 8 , wherein the retaining element has an intermediate position between the open position and the closed position,
wherein the retaining element releases partially the access to the recess, such that when the retaining element is in the intermediate position, this leaves an extremal portion of the closing end of the retaining element in an access path of the axle of the reel,
wherein an extremal portion of the closing end of the retaining element is configured to cooperate with the axle of the reel in the intermediate position to move the retaining element in the open position, disengaging the holding member.

10. The foil reel mounting device according to claim 8 , wherein the holding member is biased towards the closed position by gravity.

11. The foil reel mounting device according to claim 8 , wherein the holding member comprises a holding lever pivotally mounted on the retaining element and arranged to move between an unlocked position and a locked position.

12. The foil reel mounting device according to claim 11 , wherein the holding lever has a first arm in contact with a complementary surface of the retaining element in the locked position.

13. The foil reel mounting device according to claim 12 , wherein the retaining element has a clearance configured to allow an operator to pinch manually the end of the first arm against a complementary surface of the retaining element.

14. The foil reel mounting device according to claim 12 , wherein the holding lever has a second arm carrying a beak configured to cooperate with a catch of the support in the locked position.

15. The foil reel mounting device according to claim 8 , wherein the holding member comprises a pin configured for sliding in an opening of the support and arranged to move between an unlocked position and a locked position,
wherein the sliding pin cooperates with a hook of an additional cam surface of the retaining element in the locked position.

16. The foil reel mounting device according to claim 8 , further comprising at least one reel rotation brake configured to cooperate with a complementary brake supported by the reel.

17. The foil reel mounting device according to claim 16 , wherein the brake comprises an electromagnetic brake.

18. The foil reel mounting device according claim 17 , wherein the electromagnetic brake comprises a gear train comprising a first gear secured to a flange of the reel and coaxially to the axle of the reel and a last gear cooperating with an electromagnetic element.

19. The reel mounting device according to claim 1 , wherein the supporting module configured to support at least one reel of foil, and the supporting module comprises at least one cross-member on which at least one of the reel mounting devices is mounted.

20. A stamping machine comprising at least one foil reel mounting device according to claim 1 .

Assignees

• Bobst Mex Sa

Inventors

• Chretien Julien

Classifications

• B41F19/068 Primary

  motor-driven · CPC title

• B65H19/126

  with both-ends supporting arrangements · CPC title

• B41P2219/42

  Sheet-like material · CPC title

• B65H2301/41308

  Releasably clamping the web roll shaft · CPC title

• B41P2219/60

  Using more than one printing foil · CPC title