Postpress Technology 1000 (742-750)

742. What is the operation of the wire stapler head?
Answer: Feed (feeding wire) → cutting material → wire forming → staple → topping → reset. As shown in Figure 6.

743. What are the requirements for feeding the stapler?
Answer: (1) The length of the conveyor wire should be the same; (2) The length of the conveyor wire should exactly match the length required for the stapler to be set; (3) The wire fed into the machine head should be linear, not Bend too large to avoid affecting the book.

744. What are the requirements for wire stapler cutting?
Answer: (1) The cutting knife and the guide wire hole should be kept sharp; (2) There should be no clearance between the cutting knife and the guide wire hole when the wire is cut; (3) The degree of the knife cutting should exceed the diameter of the guide wire hole. (4) After the wire is cut off, both ends are neat, smooth, no burrs, and no hooking phenomenon. As shown in Figure 7.

745. What are the wire stapler wire forming requirements?
Answer: (1) The diameter of the forming Plate and the diameter of the wire must be matched; (2) The inner groove of the forming plate is smooth, and the gap between the plate and the binding plate is seamless; (3) The bending angle of the nail after forming must be 90 °, no skewness is allowed.

746. What are the requirements for pressing down the stapler for a wire stapler?
Answer: (1) The bookbinding slot and the wire diameter are in line with each other; (2) The pressure under the head is the same as the thickness of the booklet. It must not be too large nor too small, so as to avoid the possibility of book failure or bad times. Products.

747. What are the requirements for the iron stapler staple?
Answer: (1) The pushing plate should be of a proper height, not too high or too low; (2) the two claws must be parallel and consistent when they are raised, and must not be one high and one low; (3) the book of the backing and the two nails. Feet are solid and consistent, not wavy, not squeaky.

748. What are the methods of machine lock line?
A: There are two kinds of machine locks, flat lock and cross lock.

749. What is the machine lock?
A: The flat lock is the same lock line method for each post line, as shown in Figure 1.

750. How does the machine lock work?
A: The working principle of the machine flat lock is to form a group at intervals by using a threading needle (needle) and a hook thread needle (crochet). The yarn is introduced into the middle of the booklet along the sewing seam by a threading needle, and the hook claw (hook claw Or slide valve) Pull the thread to the position where the hook needle descends. The hook thread needle hooks the yarn and then twists the thread 180° up and pulls it from the signature to the outside of the staple seam to form a loop. Then the hook thread is used. The torsion of the needle causes the coils to be automatically slipped into knots (formation of a knot of knots) and the posts are locked tightly together. After the flat-lock book is locked, the yarn is in the middle of the signature, and the stitches and lines are regularly arranged on the outside fold of the book.

--<Printing Technology>


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