US 2003/0145703 A1 · Device for the three-sided trimming of printed products

Abstract

In a device for the three-sided trimming of book blocks, adhesively bound or wire saddle-stitched paper covers and like printed products (1), the said device having separate cutting stations (22, 27), which are disposed one behind another in a direction of conveyance (F), for the front and head/foot trims, the said direction of conveyance (F) being orientated perpendicularly to the height of the block and perpendicularly to the front-trimming plane; having cutting tables (23, 28) on which the printed products (1) rest, at least partially, during trimming; having knives (25, 30) which are moved up and down and which operate against cutting strips (23a, 28a) fixed in the cutting tables (23, 28) or against lower knives; having pressing beams (24, 29) for pressing the printed products (1) against the cutting tables (23, 28); and having a transporting system (13) which connects at least the two cutting stations (22, 27) and clamps-in the printed products (1) in the process, there are provided a gripper (18) which grasps the printed products (1) at the back (1c) and transports them with the back (1c) foremost, is guided in a plane between the cutting planes of the head/foot-trimming station (22) and effects conveyance through the cutting plane of the front-trimming station (27); and a cutting table (28, 28a) which is associated with the front-trimming station (27) and can be moved to and fro, the said cutting table freeing the transporting path (T) of the gripper (18) during the transporting of the printed products (1) into the front-trimming station (27).

Claims17

Dependent claims

Device for the three-sided trimming of book blocks, adhesively bound or wire saddle-stitched paper covers and like printed products (1), the said device having separate cutting stations (22, 27), which are disposed one behind another in a direction of conveyance (F), for the front and head/foot trims, the said direction of conveyance (F) being orientated perpendicularly to the height of the block and perpendicularly to the front-trimming plane;

having cutting tables (23, 28) on which the printed products (1) rest, at least partially, during trimming;
having knives (25, 30) which are moved up and down and which operate against cutting strips (23a, 28a) fixed in the cutting tables (23, 28) or against lower knives;
having pressing beams (24, 29) for pressing the printed products (1) against the cutting tables (23, 28);
and having a transporting system (13) which connects at least the two cutting stations (22, 27) and clamps-in the printed products (1) in the process, wherein the improvement comprises a gripper (18) belonging to the transporting system (13), which gripper grasps the printed products (1) at the back (1c) and transports them with the back (1c) foremost, is guided in a plane between the cutting planes of the head/foot-trimming station (22) and effects conveyance through the cutting plane of the front-trimming station (27);
and by a cutting table (28, 28a) which is associated with the front-trimming station (27) and can be moved to and fro and which frees the transporting path (T) of the gripper (18) during the transporting of the printed products (1) into the front-trimming station (27).

2 more elements

Device for the three-sided trimming of printed products (1) having a front side and opposite back side spaced by the width of the product, and a head side and a foot side spaced apart by the height of the product, wherein said device has

separate cutting stations (22, 27), which are disposed serially in a direction of product conveyance (F), for trimming the front side along a front-trimming plane and the head and foot sides along respective head and foot trimming planes, said direction of conveyance (F) being orientated perpendicularly to said height and perpendicularly to the front-trimming plane;
separate cutting tables (23, 28) associated respectively with said cutting stations on which the printed products (1) rest, at least partially, during trimming;
cutting means (25, 30) which are moved up and down;
pressing beams (24, 29) for pressing the printed products (1) against the cutting tables (23, 28);
a transporting system (13) spanning at least the two cutting stations (22, 27) and clamping-in the printed products (1)as they are conveyed through the cutting stations,
wherein the improvement comprises:
a gripper (18) in the transporting system (13), which gripper grasps the printed products (1) at the back end (1c) and transports the products along a transporting path with the back end (1c) foremost;
means for guiding the gripper in a plane between the head and foot trimming planes and effecting conveyance through the front-trimming plane(27);
and
said cutting table (28, 28a) which is associated with the front-trimming station (27) being movable reciprocally into and out of the transporting path (T) of the gripper (18) during the transporting of the printed products (1) into the front-trimming station (27).

7 more elements

Dependencies are inferred from the claim text.

Device for the three-sided trimming of printed products

Life of this patent

Device for the three-sided trimming of printed products

Life of this patent

Abstract

Claims17