Ultrasonic lifting strip welding device

Abstract

The invention discloses an ultrasonic lifting strip welding device. The device comprises a frame, an ultrasonic welding device, a strip conveying device, a strip cutting device and a pneumatic device; the strip cutting device comprises a cutter resetting tension spring, a strip cutting cylinder fixing seat, a strip cutting cylinder, a strip cutting guide rail, a strip cutting bottom cutter, a strip cutter and a cutter mounting plate; the strip conveying device comprises a strip conveying motor, a strip conveying transmission wheel, a strip conveying rubber covered roller, a strip passing guide groove, a strip conveying guide wheel and a strip conveying driven roller; rotation between the strip conveying rubber covered roller and the strip conveying driven roller is powered by the strip conveying motor; a fixed strip passes through the strip passing guide groove by virtue of the strip conveying guide wheel and is then conveyed to a fixedly-welded strip limiting block by engagement of the strip conveying rubber covered roller and the strip conveying driven roller in order to wait for a strip cutting mechanism to cut the strip and wait for a downward-pressing welding device to press the strip downwards and weld the strip. According to the ultrasonic lifting strip welding device disclosed by the invention, a welding process is applied to installation of a paper box lifting strip by using ultrasonic wave and is applied to automatic mounting equipment for the lifting strip; continuous stable production can be realized; the pass percent of products is increased by 100%.

Description

technical field [0001] The invention relates to the technical field of carton lifting belt welding production technology, in particular to an ultrasonic lifting belt welding device. Background technique [0002] Ultrasonic welding is a high-tech technology for welding thermoplastic products. Various thermoplastic plastic parts can be welded by ultrasonic welding without adding solvents, adhesives or other auxiliary products. Its advantages include high productivity, low cost, improved product quality and safe production. [0003] The application principle of the carton lifting belt welding production process is that the ultrasonic generator generates a certain KHz high-voltage and high-frequency signal, and the signal is converted into high-frequency mechanical vibration through the energy conversion system, which is applied to the lifting belt and its auxiliary materials. The friction between the surface of the material and the molecules increases the temperature transmitt...

AI Technical Summary

Problems solved by technology

[0004] The characteristics of the existing lifting tape production equipment for cartons are as follows: glue is missing at the joint between the lifting tape and the reinforcement tape, the glue is too thin, and the glue is stopped after the glue is scraped, resulting in a drop in the temperature of the glue, which leads to virtual bonding; due to the existing glue Due to technical characteristics, the amount of glue is insufficient, and the joint between the lifting belt and the reinforcing belt will be upturned from the perforation; the bonding method on the glue has a small load-bearing capacity, and the load-bearing capacity of products within 3KG on the market is currently unqualified. Combining the above characteristics, considering the ultrasonic welding technology between the lifting belt and the reinforcing belt, as long as the lifting belt and the reinforcing belt or the adhesive are pressed together during welding, the ultrasonic technology can ensure firm adhesion

[0005] After the market use research of the product, it was found that the original lifting tape was not due to insufficient bonding between the reinforcing tape and the cardboard, but the bonding strength of the lifting tape and the reinforcing tape was reduced due to the bonding defect

The main reasons are: it is easy to have false bonding, there is a lack of glue at the joint between the lifting belt and the reinforcing belt, and the squeegee is too thin; , there is no glue in the middle when pressing, the bonding area is reduced, and the tensile force is reduced; when the glue is too short, it is easy to cause warping, the adhesive area between the load-bearing belt and the reinforcing belt is reduced, and the tensile force is reduced; The position of the pull tape is shifted, the contact area with the glue is reduced, and the pulling force is reduced; the waste generated during punching is caught in the bonding place, resulting in a decrease in bonding strength

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