Improve the groove shape and processing method of the coiled roller to improve the tightness of the steel drum
Text/éž ç»´åŠ›
The tightness of the steel barrel crimping structure is a technically difficult problem. Since the seven-layer crimping technology in China has been widely adopted, all steel drum manufacturers have conducted in-depth research and exploration. In recent years, based on the actual situation of our factory, combined with some advanced technology and experience at home and abroad, we adopted the Russian steel drum sealing roller groove curve standard. Using the projector to enlarge the tool and then comparing it with the enlarged standard groove curve to correct the tool, the problem of insufficient tightness in the crimping structure is solved, especially for small diameter. Steel drums, the effect is very obvious.
Sealing roller processing
The specific method is as follows: Firstly, the standard groove curve is magnified 50 times, drawn onto a smooth and smooth tinplate, and then the concave metal sheet is processed and removed to form a standard enlarged template, and the enlarged sample plate is placed on the display screen of the projector. Use the projector to magnify the tool 50 times, project it, and compare it with the magnified sample on the display screen. If there is any place in the place where it is in and out, it can be corrected at any time to get a standard model tool. Since the magnification factor is large, the groove curve of the wheel made by the tool is basically the same as the seal, and the error is small.
Using this method, we have tested the Russian standard groove curve of the roller, the standard groove curve of the Japanese roller and the roller groove curve adopted by our factory over the years. After the actual anatomical examination, the standard groove curve of the Russian head roller is used. The pre-sealed steel drum has small wrinkles and can be evenly distributed on the entire cover hook. After rolling by the two rollers, the wrinkles are very small, which is better than others.
Sealing roller groove curve
It is well known that: to improve the tightness of the crimping structure, in addition to the control of the amount of sealant coating, the selection of the sealing machine and the size of the barrel diameter, the groove form of the sealing roller is also a problem that cannot be ignored. After the standard roller groove curve is determined, how to make it accurate, the production of the model tool becomes a key link in the roller processing program. It is known that the groove width and depth of the roller are small (general head roller The width is 8 to 9 mm and the depth is 5 to 6 mm. The groove curve is made up of several small arcs, so the required precision is high. Although the machining process of the grooved groove curve requires the use of a curved grinding machine for fine grinding, from the situation we know, many factories have not carried out fine grinding, and the general testing tools cannot accurately check the standard of the curve. So it is difficult to make a standard roller curve. In the past, when selecting the groove curve, the anatomical data of the steel barrel curling is generally used. Although this method can sometimes meet the requirements of the sealing quality, this method is very time consuming, and once the tool is worn, the vehicle is made again. The roller will again degrade the quality of the seal. The method of using a projector to enlarge the tool can better compensate for this deficiency.
Sealing roller groove type amplification template
In the past few years, the production practice of our factory has shown that the standard groove curve of Russia's roller is selected, and the roller made by the projector is enlarged and corrected by the projector to seal the steel drum. The sealing quality of the steel drum is greatly improved, especially The effect of the small-diameter steel drum is particularly obvious, which greatly reduces the phenomenon of excessive wrinkles and teething of the head when the small steel drum is sealed. Since the standard groove is narrow, the width of the bead is controlled, and the overlap ratio of the steel bead is also improved. At the same time, the use of this new technology is also a step toward the standardization of the barreling process and mold.
Make a Diy Macrame Pillow on sofa , couch , bench , bed or car . Comfortable headrests , one for our child's bedroom and one for each bed , and one for the day bed . Unique design adds texture and interest to any home decor . Our Boho Throw Pillows are soft to the touch . Good combination with different interior's concepts : bohemian , rustic , retro , vintage and others .
Cotton Cushion,Macrame Cotton Cushion,Cotton Seat Cushion,Cotton Macrame Cushion
Shandong Guyi Crafts Co.,Ltd , https://www.guyicraft.com