The wire stapler is one of the most widely used and the lowest cost binding methods. There are two common types of staples: one is flat iron stitching and the other is saddle stitching.
Iron wire binding, also known as iron wire and peace book, is to use the signature with a good signature, in the mouth (usually 5mm away from the spine), with a stapler through the book core on the back bending, The staple method for book blocks is shown in Figure 4-1a.
Iron binding is generally used to bind thick books, magazines, and it has a wider selectivity for binding signatures. If the bound book block is too thick and the wire pin cannot extend out of the back, the wire can be stapled to the front and back of the book block.
Iron wire set has high production efficiency and low price, and the book book is flat and beautiful. However, iron wire is tightly set and thick books are difficult to read; iron wires are apt to rust, which on the one hand affects the firmness of the book; on the other hand, the rust class penetrates the cover, resulting in the breakage and loss of the book pages.
Figure 4-1 a-wire sketch b-sewing
Iron wire is set to use iron stapler staples. The main types of wire staplers currently produced in China are: DS101 type, DSH-1 type, TD101 single-headed wire stapler and DS201 double-headed wire stapler. A single-head stapler refers to a reciprocating motion of the head to set a saw screw; a double-head stapler refers to having two heads and completing two saw bits each time. This stand-alone machine can be used for flat iron stitching. If the table is turned to 45° so that the top corner of the table is up, saddle stitching can be performed.
The main technical specifications of commonly used iron-stitched staplers are shown in Table 4-1.
Iron wire number 26~20 26~24 26~20
Nail length 13mm 13mm 12mm
Stapling speed 75 to 140r/min 75 to 140r/min 160 to 190r/min
Motor 0.6kW 0.6 or 0.4kW 0.6kW
According to the regulations of the national industry standard CY/T28-99, the quality requirements for iron wire binding are as follows:
The flat-tie position of the wire is set at 1/4 of the book block on the outside of the nail saw. The tolerance is ±0.5mm. The distance between the saw and the spine: When the thickness of the book block is ≤4mm, it is 3 to 6mm; the thickness of the book block At 4mm, it is 4.0mm-7.0mm.
No bad saws, no missed bookings or re-orders.
According to the thickness of the book block, the quality of the paper, select the thickness of the wire used. In general, thicker book blocks or higher paper hardness require the use of larger wire diameters. Otherwise, the wire is easily bent and cannot penetrate the signature. When binding a 52g/m2 letterpress book block, the relationship between the thickness of the book block and the diameter of the wire is shown in Table 4-2.
Iron wire number 25 24 24 23 23 22 22 21
If the book block is an offset paper and coated paper, it should be adapted to increase the diameter of the wire.
Source: Bison