Carton printing take place because of the whole - carton, carton printing take place - Paper Industry

Carton printing take place because of the whole - carton

, carton printing take place - Paper Industry

Carton Print quality good or bad press, it is usually understood as two aspects. The one hand, the clarity of printing, including shades of the same color, pattern no adhesion, no ghosting, no leak bottom. On the other hand is a multi-color printing of overlay accuracy should normally be within 1mm, good printing can be achieved 0.5mm or even within 0.3mm. In fact there is a very important press printing --- printing overall quality index go places, that is several colors chromatically accurate, but with Cardboard Reference edge spacing inconsistent bias. Due to general Carton Of the quality indicators are not strict, easily overlooked. Take place if the overall error of more than 3mm or 5mm, the problem is more serious.

Chain feed, whether or automatic document feeder (push back or front feed paper), printing a whole are taking place with the cardboard base side of the vertical transport direction, because the other direction (cardboard transport direction) is not easy to go the whole production bit (unless cardboard run oblique). This paper will analyze ways to push the paper after the printing press automatic document feeder to walk the whole reason.

Automatic document feeder conveyor press cardboard cardboard by pushing the code goes on the bottom board of Qi into the pre-sent between the upper and lower conveyor rollers, conveyor rollers up and down by the onward transmission to the printing department, and so to repeat that complete the automatic document feeder. Of cardboard delivery process can help us find the reasons for printing the whole place to go.

First in the process of pushing paper, push the transmission chain can not board a greater accumulation of space. Automatic feed presses push paperboard Reciprocating linear motion. Most manufacturers use the crank (slider) leader mechanism plus rocker slider. For institutions lightweight, wear small, crank slider guide rod bodies are bearing slider. Skateboards for bearing with the two gap might cause the movement to promote cardboard uncertainty, resulting in feed error, causing the overall take-bit printing. So how to ensure that the two bearings in the slide guide rod intercropping pure rolling, not to the two slide bearing and a larger gap is the key. Dual-bearing structure, whether bearing down along the slide to move or move up, can ensure that the bearings in the two skateboard intercropping seamless pure rolling, allowing organizations to eliminate both the light and can wear a small gap.

Guide rod and rocker shaft junction with the force of alternating load due to easy to produce loose, but also created a distance error caused by pushing the reason cardboard, paper pushing. Cardboard push the other institutions are driving chain gear to improve the processing precision gear (such as by grinding, honing), enhance the accuracy of gear center distance (such as wall panels used machining center), reducing the cumulative transmission gap, to improve the accuracy of pushing cardboard, paper pushing, thereby reducing the overall take place cardboard printing.

Second, pushing up and down cardboard will feed into the cardboard roll moment, the speed is actually cardboard cardboard by the push to upgrade the line speed of the upper and lower feed roller speed velocity of an instantaneous process. The instantaneous speed push board must be less than the upper and lower feed roller speed (otherwise, the board will be pushed from the bow). The small number, the ratio between the speed of the matching relationship is very important. Directly affects the speed of the moment is slipping cardboard, paper feeding accuracy, thus affecting the overall take-bit printing. And this is precisely the printer manufacturers do not notice the.

Rate unchanged in the host, the upper and lower feed roller speed is constant, while pushing cardboard is a variable speed, from zero to the limit position after the forward position of the maximum to the previous limit of zero, former limit of zero position and then to reverse the location of the maximum to zero after the limit to form a loop.

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