Method and device for exchanging an adhesive application roller

Patent metadata

Field	Value
Publication number	US-9375969-B2
Application number	US-201313779345-A
Country	US
Kind code	B2
Filing date	Feb 27, 2013
Priority date	Feb 29, 2012
Publication date	Jun 28, 2016
Grant date	Jun 28, 2016

Abstract

A method and apparatus for exchanging an application roller which is aligned with a duct roller used to apply glue to a spine of a book block by rolling off the book block spine. The duct roller removes glue from a glue container to transfer glue to the application roller. At least two application rollers are arranging spaced apart, relative to each other, with one of the application rollers being positioned aligned and in contact with the duct roller. The duct roller and the at least two application rollers each have an axis of rotation that is positioned substantially normal to the conveying direction. The application rollers are moved in an axial direction with the aid of an exchanging device, such that a second one of the application rollers is moved into alignment with and against the duct roller in place of the first application roller.

First claim

What is claimed is:

1. An apparatus to exchange an application roller which is aligned with a duct roller having an axis of rotation and which is used to apply glue to a spine of a book block by rolling off the book block spine, the book block being transported in a conveying direction and the duct roller removing glue from a glue container to transfer the glue to the application roller, the apparatus comprising:
at least two application rollers axially spaced apart, relative to each other, wherein a first one of the at least two application rollers is arranged to be in an initial position aligned and in contact with the duct roller, the at least two application rollers each having an axis of rotation separate from the axis of rotation of the duct roller, and the axis of rotation respectively of the duct roller and each of the at least two application rollers is substantially normal to the conveying direction; and
a device to exchange the first one of the application rollers with a second one of the application rollers, wherein the device is configured to move the first one of the application rollers away from the duct roller, to subsequently axially move the at least two application rollers to exchange the first application roller with the second one of the application rollers so that the second one of the application rollers is aligned with the duct roller in place of the first one of the application rollers, and thereafter to move the second one of the application rollers against the duct roller.

2. The apparatus according to claim 1 , wherein the device comprises a machine control for the apparatus and an adjustment mechanism connected to at least one of the application rollers and operatively connected to the machine control to move the application rollers away from and toward the axis of rotation of the duct roller.

3. The apparatus according to claim 2 , wherein the adjustment mechanism comprises first and second adjustment elements that operate jointly.

4. The apparatus according to claim 3 , wherein the first adjustment element includes a pneumatic cylinder and the second adjustment element includes a spindle having an output side end which is supported on a basic frame of the apparatus.

5. The apparatus according to claim 4 , wherein the pneumatic cylinder comprises a cylinder axis and the spindle comprises a spindle axis, and the cylinder and spindle axes together enclose a variable adjustment angle in a vertical plane through the conveying direction.

6. The apparatus according to claim 1 , wherein the application rollers are arranged coaxially and are moveable along a joint axis of rotation.

7. The apparatus according to claim 6 , further including a joint drive shaft, wherein the application rollers are arranged displaceable in a longitudinal direction on the joint drive shaft.

8. The apparatus according to claim 1 , wherein the respective application roller that is aligned with the duct roller is arranged to be swiveled toward the duct roller and away from the duct roller.

9. The apparatus according to claim 3 , further comprising a basic frame and a swivel frame having an axis of rotation and first and second legs, wherein the application rollers are positioned to swivel in the swivel frame, and wherein the first leg of the swivel frame is connected to the first adjustment element and the second leg of the swivel frame is connected to the second adjustment element.

10. A book production line comprising the apparatus according to claim 1 .

11. A method for exchanging an application roller which is aligned with a duct roller having an axis of rotation and which is used to apply glue to a spine of a book block by rolling off the book block spine, wherein the book block is transported in a conveying direction and the duct roller removes glue from a glue container to transfer the glue to the application roller, the method comprising:
providing an apparatus to exchange an application roller according to claim 1 ;
arranging the at least two application rollers spaced apart, relative to each other, with a first one of the at least two application rollers being positioned aligned and in contact with the duct roller, wherein the duct roller and the at least two application rollers each have an axis of rotation that is positioned substantially normal to the conveying direction; and
moving the application rollers in an axial direction with the aid of the exchanging device, such that a second one of the application rollers is moved into alignment with and against the duct roller in place of the first one of the application rollers.

12. The method according to claim 11 , wherein the moving step includes initially moving the first one of the application rollers away from the duct roller and subsequently moving the application rollers in the axial direction until the second one of the application rollers is aligned with the duct roller, and finally moving the second one of the application rollers against the duct roller.

13. The method according to claim 12 , wherein the initial moving step includes adjusting an axial distance between the axis of the duct roller and the axis of the second one of the application rollers when moving the second one of the application rollers against the duct roller using a machine control issuing a signal corresponding to the axial distance.

14. The method according to claim 12 , further including adjusting a contact pressure between the second one of the application rollers and the duct roller in addition to adjusting the axial spacing distance.

Assignees

• Mueller Martini Holding Ag
• Mueller Martini Marketing Ag

Inventors

• Mueller Hans

Classifications

• B42C9/0012 Primary

  with a roller (B42C9/0043 takes precedence) · CPC title

• B42C9/00 Primary

  Applying glue or adhesive peculiar to bookbinding · CPC title