2results about How to "Won't drop" patented technology

This invention belongs to the field of paper stationery, specifically relating to a method for binding student exercise books. The method involves laying adjacent pages of the exercise book's inner core flat, sewing a seam between the cover and the inner core; then sewing a backing strip between the cover and the inner core and gluing it together; finally, stacking the exercise books and binding them together on the cover and back cover. Using only perfect binding can lead to pages falling out if the glue is uneven, while using only sewn binding can result in broken or unraveling threads during trimming. This invention combines two binding methods: sewing followed by gluing a backing strip onto the cover and back cover. This effectively conceals the sewing threads within the overlapping backing strip, preventing loose threads, glue spillage, and page falling out. The resulting student exercise books are more durable, practical, and have a longer lifespan.

The liquid injection pipe inserting unit of the multi-station nozzle assembly equipment has liquid injection pipe inserting branches, each of which has a profiling channel, a punching assembly and a position supplementing assembly. In one aspect, the profiling channel is shaped and reset and the liquid injection pipe is straightened by falling back, and the assembly is performed at a pressing limit position, so that multiple nozzles are aligned and inserted and punched with the same length, which not only eliminates the defect that the liquid injection pipe cannot be aligned and inserted due to deformation, but also provides necessary conditions for high-quality insertion of the liquid injection pipe. In another aspect, the liquid injection pipe is synchronously positioned and shaped, so that the length of the protruding part of the liquid injection pipe matches the length of the stepped part, and the liquid injection pipe is aligned and inserted with the assistance of the reinforced sleeve insertion end, so that the length of the inserted sleeve is consistent, the liquid injection pipe will not be pulled down when the insertion end falls back, and the downward pressure provided is equal to the upward thrust formed by the insertion, so that the installation will not cause misalignment of the internal parts.