Device for moving a printed product
A device ( 1 ) for moving a book ( 2 ) with a clamping device ( 3 ) moved by a first drive ( 22, 23 ) and having two clamping jaws ( 3 a, b ) that can be displaced in a parallel to open and close the clamping device, with a gear mechanism ( 8 ) on the moving clamping device ( 3 ) that converts a rotative movement into a linear adjusting movement for the clamping jaw ( 3 a, b ) which can be displaced in parallel, with a controllable second drive ( 21 ) that is arranged stationarily, and with a permanent driving connection ( 13, 14, 15 ) between the second drive ( 21 ) and the gear mechanism ( 8 ). The second drive ( 21 ) is not arranged on the moving system, such that the clamping device ( 3 ) can be realized in a lightweight construction. Pneumatic and electric connecting lines and signalling lines ( 35 a, b ) for the second drive ( 21 ) can be permanently installed.
1. A device ( 1 ) for moving a printed book product ( 2 ), comprising:
a clamping device ( 3 ) including two clamping jaws ( 3 a, b ) that are arranged parallel to one another and thereby define a variable space within which to clamp the printed product ( 2 ) with a preestablished clamping force, wherein the space between the clamping jaws ( 3 a, b ) can be varied by a parallel linear displacement movement of at least one clamping jaw ( 3 a, b ) relative to the other in order to open and close the clamping device ( 3 );
a first drive ( 22 , 23 ) operatively associated with the clamping device, for moving the clamping device such that a clamped book product is movable between initial and final positions;
a rotative gear mechanism ( 8 ) arranged on the movable clamping device ( 3 ) and responsive to the first drive for converting rotative gear movement into said linear movement of the at least one clamping jaw ( 3 a, b ) to achieve said parallel displacement;
a controllable second, stationary drive ( 21 ), and
a permanent driving connection ( 13 , 14 , 15 ) between the second drive ( 21 ) and said rotative gear mechanism ( 8 ) whereby said second drive selectively also converts rotative gear movement into said linear movement.
2. The device according to claim 1 , wherein the clamping device ( 3 ) as driven by the first drive, carries out a pivoting movement ( 19 ) about an axis of rotation ( 19 a ) between the initial and final positions.
3. The device according to claim 2 , wherein the pivoting movement ( 19 ) of the clamping device ( 3 ) is realized in the form of a back and forth pivoting movement by a defined angle.
4. The device according to claim 2 wherein the driving connection ( 13 , 14 , 15 ) includes a gear having a rotation axis that is coaxial with the axis of rotation ( 19 a ) of the clamping device.
5. The device according to claim 2 , wherein the linear movement for opening and closing ( 11 ) of the at least one clamping jaw ( 3 a , 3 b ) takes place parallel to the axis of rotation ( 19 a ) of the clamping device ( 3 ).
6. The device according to claim 2 , wherein means are provided for generating a signal commensurate with an angle at which the clamping device has pivoted and the second drive ( 21 ) is an electric motor ( 21 ) that is controlled in dependence on the signal that is commensurate with the pivot angle.
7. The device according to claim 1 , wherein the second drive is a servomotor ( 21 ); means ( 35 a , 35 b ) are provided for generating respective first and second signals commensurate with (first) the angle at which the clamping device has pivoted and (second) the absolute rotational position of the servomotor; and a controller controls the second drive ( 21 ) in dependence on the first signal.
8. The device according to claim 7 , wherein the displacement of the at least one clamping jaw ( 3 a, b ) caused by the movement of the clamping device ( 3 ) is supplemented by the second drive ( 21 ).
9. The device according to claim 7 , wherein the second ( 21 ) drive variably controls the space between the clamping jaws ( 3 a, b ) in dependence on the position of the clamping device during the movement of the clamping device ( 3 ).
10. The device according to claim 7 , wherein the second drive ( 21 ) variably controls the space between the clamping jaws ( 3 a, b ) in accordance with a motion curve that is defined by at least one stored parameter.
11. The device according to claim 10 , wherein the motion curve is defined by the thickness of the printed product ( 2 ).
12. The device according to claim 7 , wherein a defined clamping force can be generated between the clamping jaws ( 3 a, b ) by the second drive ( 21 ).
13. The device according to claim 7 , wherein the second drive ( 21 ) variably controls the space between the clamping jaws ( 3 a, b ) to match a predetermined clamping force.
14. The device according to claim 1 , wherein said rotative gear mechanism ( 8 ) is realized in the form of a spindle gear mechanism ( 8 ) with at least one threaded spindle ( 9 a, b ) and an assigned spindle nut ( 10 ).
15. The device according to claim 1 , wherein both jaws of the clamping device ( 3 ) are moveable toward and away from each other such that the clamping device can be opened and closed centrally referred to the product.
16. The device according to claim 4 , wherein the pivoting movement ( 19 ) of the clamping device ( 3 ) is realized in the form of a back and forth pivoting movement by a defined angle.
17. The device according to claim 5 , wherein the pivoting movement ( 19 ) of the clamping device ( 3 ) is realized in the form of a back and forth pivoting movement by a defined angle and the driving connection ( 13 , 14 , 15 ) includes a gear having a rotation axis that is coaxial with the axis of rotation ( 19 a ) of the clamping device.
18. The device of claim 8 , wherein the clamping device ( 3 ) as driven by the first drive, carries out a pivoting movement ( 19 ) about an axis of rotation ( 19 a ).
19. The device of claim 6 , wherein the pivoting movement ( 19 ) of the clamping device ( 3 ) is realized in the form of a back and forth pivoting movement by a defined angle; the driving connection ( 13 , 14 , 15 ) includes a gear having a rotation axis that is coaxial with the axis of rotation ( 19 a ) of the clamping device; and the linear movement for opening and closing of the at least one clamping jaw ( 3 a , 3 b ) takes place parallel to the axis of rotation ( 19 a ) of the clamping device ( 3 ).
20. The device of claim 7 , wherein the clamping device ( 3 ) as driven by the first drive, carries out a pivoting movement ( 19 ) about an axis of rotation ( 19 a ); the pivoting movement ( 19 ) of the clamping device ( 3 ) is realized in the form of a back and forth pivoting movement by a defined angle; the driving connection ( 13 , 14 , 15 ) includes a gear having a rotation axis that is coaxial with the axis of rotation ( 19 a ) of the clamping device; and the linear movement for opening and closing of the at least one clamping jaw ( 3 a , 3 b ) takes place parallel to the axis of rotation ( 19 a ) of the clamping device ( 3 ).
21. A device ( 1 ) for moving a printed book product ( 2 ), comprising:
two clamping jaws ( 3 a,b ) arranged parallel to one another and thereby defining a variable space within which to clamp the printed product ( 2 ) with a preestablished clamping force, wherein the space between the clamping jaws ( 3 a,b ) can be varied by a parallel displacement of at least one clamping jaw ( 3 a,b ) relative to the other;
a console ( 7 ) on which the clamping jaws are guided ( 6 ) for said parallel displacement, said console being rigidly supported on a main shaft extending between spaced apart bearings ( 17 , 18 ) along a main pivot axis ( 19 a );
a first drive ( 22 , 23 ) for rotating said main shaft and thereby pivoting the console ( 7 ) with jaws about the main pivot axis whereby a book product clamped in the jaws is movable between initial and final pivot angle positions;
a rotative gear mechanism ( 8 ) including a spindle ( 9 ) and at least one spindle nut ( 10 ) supported by the console and movable around the main pivot axis ( 19 a ) with the console, wherein said at least one spindle nut ( 10 ) is connected to a respective at least one clamping jaw ( 3 a,b );
a passive gear configuration ( 14 , 15 ) including a gear ( 14 ) that is centered on and freely rotatable relative to said main shaft, coupled to the spindle ( 9 ) of the rotative gear mechanism ( 8 ) by which the movement of the rotative gear mechanism with the console about the main pivot axis ( 19 a ) rotates the spindle ( 9 ) and displaces the at least one spindle nut ( 10 ) parallel to the main pivot axis to produce a linear adjusting movement of the at least one clamping jaw ( 3 a, b ) to achieve said parallel displacement;
a second, stationary drive ( 21 ); and
a stationary active gear ( 13 ) driven by the second drive ( 21 ) and coupled to the passive gear configuration ( 14 , 15 ) by which the second drive provides a controllable supplemental rotation of the spindle ( 9 ) and displacement of the at least one spindle nut ( 1 , 10 ) parallel to the main pivot axis, independent of the first drive.