Xuzhou Surun Wear-resistant Material Co., LTD. Features include:
1. Professional: The company focuses on the research and development, production and sales of wear-resistant materials, with rich industry experience and professional knowledge.
2. High quality products: The wear-resistant materials produced by the company have reliable quality, excellent wear resistance and service life, and can meet the various needs of customers.
3. Innovation ability: The company focuses on technological innovation and constantly introduces competitive new products to meet the needs of the market and provide better solutions.
4. Customer orientation: The company takes the customer as the center, pays attention to communication and cooperation with customers, and provides personalized solutions and high-quality after-sales service according to customer needs.
5. Good reputation: Adhering to the principle of good faith management, the company has won the trust and praise of our customers with high-quality products and services.
6. Comprehensive product line: The company's product line covers a variety of wear-resistant materials, which can meet the needs of different industries, such as mining, cement, steel and so on.
7. Environmental awareness: The company focuses on environmental protection, the use of environmentally friendly materials and technologies in the production process, and is committed to reducing the impact on the environment.
8. Team cooperation: The company has an efficient team, the team members cooperate closely with each other, and work together to provide the best solutions for customers.
Alloy Steel Ball Aube Ball,Ball Mill Cast Iron Ball,Ball Mill Cast Iron Steel Balls,High Chromium Cast Steel Balls Xuzhou Surun wear-resistant material Co., LTD , https://www.suruntools.com
When it comes to the electrical core components of a woven bag printing machine, it's wise to make a significant investment upfront. This helps prevent future issues caused by frequent breakdowns. However, if you're confident in the quality and performance of another brand’s inverter, you can consider alternatives to save some costs. Once the inverter hardware is in place, it's important to configure its internal settings properly. For speed parameters, you can set the jog frequency at 2.5 Hz, the initial printing speed at 25 Hz, and the high-speed setting around 60 Hz.
As an example, let's take the Mitsubishi A540 series 400V, 11kW inverter. This guide will walk you through the specific wiring and how to connect it with the older version of the woven bag printing machine. The two wiring diagrams are shown below, along with key precautions.
(1) The original woven bag printing machine used an electromagnetic speed control motor, which included low-speed motors, clutches, and brakes. These have been removed and replaced with a specialized frequency conversion motor from Shanghai Tongtai Electric Co., Ltd. The new motor is 11kW/380V and comes with a three-phase power-off brake and a cooling fan. You can reuse the original motor's mounting base, and the pulley from the old motor can be transferred to the new one’s shaft.
(2) Since the main motor and low-speed motor have been taken out, the wiring for the main contactors KM1, KM2, and KM3 in the distribution box can also be removed. Any remaining contacts can be used as switch contacts for the drive control signals. It's recommended to replace the original relay contacts since they may have worn out over time and could lead to poor connections. The inverter’s forward input terminal (STF), reverse input terminal (STR), medium speed terminal (RM), low speed terminal (RL), reset terminal (MRS), and common terminal (SD) need to be wired together using a combination of series and parallel connections to meet the three-stage speed control requirements.
(3) The original electromagnetic governor ZLK-11 has also been removed. Instead, a suitable speed display box was made using the same installation position. A 1KΩ/ZW winding potentiometer is connected to the analog input port (-10E, 2.5). A full-scale 10V DC voltmeter is connected in parallel across the 2.5 end. The dial indicator is then adjusted to show the command speed of the inverter.
(4) The normally closed contacts B and C of the inverter are connected in series with the original control line KA1, giving the entire machine the ability to perform an emergency stop.
(5) The contactor KMa of the main motor is connected to the original line KA1. If an alarm occurs, the main motor circuit is disconnected, and the KA1 normally closed contact closes, resetting the inverter and blocking output. The cooling fan and electromagnetic brake contactor KMb coil have two separate branches. One branch includes a normally open contact of KMa connected in parallel with KMa, while the other uses a normally closed contact connected to the power supply safety switch. Normally, this branch is open. When manual cranking is needed, the power passes through the safety switch to energize KMb, releasing the brake and allowing the machine to be manually turned.
(6) There are two options for installing the inverter. One is to create a new control box and place it in a suitable location beneath the Feida paperboard. Alternatively, if the control cabinet is near a wall or column, the control box can be mounted directly on the wall or column, with the wiring run through conduits and connected to the original control cabinet.
Modification technology of woven bag printing machine performance