Many parts of offset printing machines, various parts of the sound emitted during operation has its fixed sounds and beats. A skilled operator should be able to use the ear to distinguish which part of the sound is abnormal, and find the problem from it, to "sound the diagnosis", promptly eliminate the fault and ensure the normal operation of the machine. See what auscultation secrets he has?
When the J2108 and J2203 offset presses are at the opposite point, sometimes they will make a sharp sound of “å±, å±, å±â€, which is the tip of the transfer paper that touches the edge of the embossing roller or the delivery chain. The cusp of the tooth touches the sound of the embossing roller. Because the tip of the tooth is sharp, if the surface of the roller slides on the opposite point, it will inevitably make a sharp sound of "å±, å±, å±". Solution : If the tip of the transfer paper touches the impression cylinder, the position of the large cam can be adjusted; if the tip of the delivery chain is touching the impression cylinder, the running time of the delivery tray can be adjusted as a whole. To solve.
When the machine is pressed, the sound of â€œç °, â€‹â€‹ç °, ç °â€ is emitted, indicating that the pressure between the rollers of the machine is too large.
Solution : Re-measure or reduce the pressure between the rollers.
When the machine is pressed, it will make a “snap, slightly, slightly†sound, indicating that the plate screws are not tightened, or the plates are torn.
Solution : Tighten the plate screws or replace them with new ones.
The electromagnet that controls the paper stack to rise automatically emits a "beep, bang, bang" sound, and the stack does not rise because the pin that connects the core of the electromagnet is broken.
Solution : Stop immediately and reinstall the connecting pin.
During normal printing , the machine makes a "sudden, sudden, sudden" sound, indicating that the water roller or the inking roller is under excessive pressure on the printing plate.
Solution : Stop and check carefully which pressure of the water roller or the inking roller is not suitable and adjust it.
The delivery position of the machine makes a sound of “嚓, åš“, åš“â€, which is caused by the collision of the delivery chain too much, the collision of the dentition on the guide rail, or the loose side of the chain.
Solution : Stop, properly tighten the chain and keep the two sides tight.
The most easily damaged parts inside the machine are ball bearings, especially the transmission surfaces, such as the roller that oscillates the large cam, the bridge gear of the lower sleeve transmission part, etc., all of which are equipped with ball bearings. After the bearing on the gear is damaged, the gear will emit a "boom, bang, bang" sound during operation, which is mainly due to the abnormal gear meshing and excessive friction between the tooth and the tooth.
Solution : Stop and open the shield to determine which part of the bearing is damaged.
(The author of this article worked at Xi'an Xinhua Printing Factory Vinda Company)
For more exciting, please pay attention to the "Printing Technology" official WeChat (Printech1957).
Scan the QR code to follow the official "WeChat" printing technology
Our handmade mats is functional , unlike plastic , they don`t wear out easily . Each handmade mat is rich in color , with a neutral color , natural and simple , elegant atmosphere , can bring fresh feeling for home . And they are the perfect item to decorate your table for any occasion : holiday entertaining , parties , gatherings , birthdays , special occasions , everyday meals and more .
Our handmade mats are available in various colors, designs, shapes and styles. We offer these mats in various packaging options and are delivered within the scheduled time - frame. The offered products can be customized as per the client''s requirements.
Handmade Mats,Hand Cushion,Handmade Bath Mat,Handmade Floor Mats
Shandong Guyi Crafts Co.,Ltd , https://www.guyicrafts.com