The Trellis U-channel post is a hat-shaped fence post commonly used in the agricultural sector, particularly for grape trellises, apple frames, and similar applications. It features a top width of 32.48mm, a bottom width of 41.69mm, and a total width of 81mm, with a height of 39mm. Each post measures 2473.2mm in length and is equipped with 107 closely spaced, continuous 9mm diameter holes, allowing for flexible installation of brackets in various sizes.
Flow chart
Decoiler with leveler–Servo feeder–Punch press–Roll former–Flying cut–Out table
Decoiler with Leveler
This machine combines decoiling and leveling functionalities. Its decoiler features a brake device for adjusting the tension of the decoiling roller, ensuring smooth operation. Steel protection leaves prevent coil slippage during decoiling, enhancing safety and cost-effectiveness while saving production line floor space.
Following decoiling, the steel coil proceeds to the leveling machine. Given the coil thickness (2.7-3.2mm) and dense punching, a leveler is crucial to eliminating coil curvature, enhancing flatness and parallelism. The leveling machine is equipped with 3 upper and 4 lower leveling rollers for optimal performance.
Servo Feeder & Punch Press
For this purpose, we employ a 110-ton punching press manufactured by the Yangli brand, coupled with a servo feeder. The servo motor enables rapid response with minimal start-stop time wastage, ensuring precise position control. With Yangli’s global presence and commitment to high-quality after-sales service, customers can expect reliable support. Customized molds are tailored based on customer-provided punching drawings, efficiently creating 9mm diameter holes. The punching dies, constructed from SKD-11 steel, offer exceptional wear resistance and hardness.
In the PLC control program, we streamline the input of punching data by managing the quantity of punching holes. Additionally, a parameter memory function is provided for storing 10 sets of punching parameters, tailored to production requirements. This feature allows for easy retrieval and use of stored parameters without the need for re-input.
Limiter
To synchronize production speed, a limiter is positioned between the punching and roll forming sections. When the steel coil contacts the lower limiter, signaling a punching speed surpassing the roll forming speed, the punching machine receives a stop signal. A prompt appears on the PLC screen, prompting the operator to resume work by clicking on the screen.