Books are positioned at the top of the machine, spine down. The jaws grip the book and a forming roller spreads the spine to create the rounding and backing The machine produces a traditional shoulder on the front and back of the book to enable the boards to align with the spine when the book is bound and closed. Technical Data Range.
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As for rounding and backing, it can be considered as a sort of pre-set form that stiffens the spine area and makes it more difficult for the fore edge to protrude, but also a means of dealing with the swell of the spine from the thread of a handsewn book. These book blocks will inevitably go either forward or backward when put under pressure in the process of making, or in a bookshelf.
Books are positioned at the top of the machine, spine down. The jaws grip the book and a forming roller spreads the spine to create the rounding and backing The machine produces a traditional shoulder on the front and back of the book to enable the boards to align with the spine when the book is bound and closed. Technical Data Range Minimum Maximum Cycle Time 5 seconds Height 4” (102) 15.
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During the rounding, the rounding template presses the book block downwards first for making the back bone form a slight arc, after then the rounding roll clips it tightly and rotates to form a round shape back bone, the pressing down amount of the rounding template and the angle of clamping and rotating of the rounding roll are both adjustable, it could control the size of the round shape.
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Rounding: Convex shaped spine generally required for soft-cover bound Bibles, Diaries and Note-Books etc. The process of Rounding is to bring the swell into a controlled form in which the spine-width does not extend beyond the Edge of the Book-block. Rounding is produced by means of two rollers rotating uniformly under hydraulic pressure to a pre-set Arch.
ZYSK-400 Book Cover rounding machine Description: This machine is aim to round the back of book cover, it adopts pneumatic principle, and back-rounding mold has heating function, there are many different molds, and the mold can be customized according to the thickness of the spine.
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Book Pressing Machine The bookcore pressing machine is used for flattening paper products like magazine, thin book ,exercise book. The book pressing machine also can pressure the book The pressing machine is wide used on other product which need pressure or need flatten. Welcome to consult the bookcore pressing machine.
Round and Back the Book. This step was performed on all three books. This was the step that really turned each book into a solid unit. After I'd sewn the book blocks together and trimmed them even, what I had still didn't feel like a book. It was too disparate. The signatures tended to spring apart, and I could see the tapes or cords holding the block together from inside the book. After all.
BQ30 rounding and backing machine is developed to rounding and backing spine of hard cover book.
August Kolbus develops and builds a book spine rounding and surface pressing machine. Called the “Rupert” it’s the first in a long line of KOLBUS book bindery machines and lays the foundation for the “Rahdener Maschinenfabrik Aug. Kolbus” in Rahden, Westphalia. In 1910 an embossing press is added to the machine range.
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Function. Book block shot round after the brush glue machine is slightly dry core strip on the back of a book into a circular arc of the equipment, widely used in hardcover books and notebooks on the back of the book core rounding bending process.
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The jaws grip the book and a forming roller spreads the spine to create the rounding and backing The machine produces a traditional shoulder on the front and back of the book to enable the boards to align with the spine when the book is bound and closed. Technical Data Range Minimum Maximum Cycle Time 5 seconds Height 4 (102) 15 (381) Power 5 KW, 220 V, 3 Phase, 60 Hz. Width 4 (102) 15 (381.