1 Industry Introduction

1.1 Market Share Analysis

Step door cover splicing and milling machine is a kind of equipment for grooving wooden boards, making grooves of the size required by users, and performing subsequent splicing processing.

1.2 Development Trend Analysis

Nowadays, with the rapid development of science and technology, evolution are constantly taking place. In some processes, automatic and semi-automatic equipment is gradually used for auxiliary operations, so that workers can be liberated from heavy labor. Among them, due to its simple operation, high efficiency, safety, precision and intuitiveness, it can well meet the increasingly stringent requirements of modern enterprises. Step door cover splicing and milling machine has played an important role in the woodworking industry.

1.3 Self Analysis

1.3.1 Advantages:

1. Simple control and convenient operation.
2. Simple maintenance and clearly fault alarm.
3. Two automatic modes, choose according to your needs.
4. The cutting size is accurate, using a stepper motor, the cutting error can reach 40 wires.

1.3.2 Disadvantages:

1. The number of enterprises is large and the brand influence is not enough;
2. There are many competitors;

1.3.3 Opportunities:

Improve users’ production efficiency, reduce production costs, and make our equipment more competitive in the market.

Later period, you can try to replace the stepper motor with our servo.

2 Product Solution

2.1 Wecon solution

Wecon products used: HMI: PI3070i; PLC: LX3V-1208MT;

1 Wecon PI series 7-inch PI3070i

1. Using Cortex A7 528MHz CPU, resolution: 800 x 480;
2. Screen switching and update speed improved;
3. Gallery capacity, software security, communication stability upgrade;
4. Programmed by PIStudio;

2 LX3V-1208MT

1. Host: AC85-265V (D is DC24V±10%), 12 points 24V input, 8 points transistor output;
2. Input 12 points, output 8 points, transistor type, of which 2 high-speed outputs, each 100K:
3. Communication protocol: LX3V-1208MT-A(D)1: 1S command set

3 LX3V-1208MT-A(D)2: 2N command set

Communication port: support RS422, RS485 method . Support 1 expand BD board.

2.2 Competitive Products Analysis

Product brand: Delta + Leadshine stepping motor

3 System Framework

3.1 Process Flow Description

After returning to zero point, start the machining, perform milling according to the setting parameters, first machine the X-axis, and after the machining is completed, lift the cylinder, move to the Y-axis, put down the cylinder, continue to move to the X-axis, repeat the action, and set the specified coordinates for processing. Return to the zero point after processing, and wait for the next start.

3.1.1 Ladder Programming

1 Data calculation

2 Return zero

3 Automatic (Mode one)

Mode two

3.1.2 HMI Design Diagram

3.1.3 Equipment Photos

4 Summary

The equipment is not difficult, mainly when writing the processing process, it is necessary to consider the continuous operation of the X and Y axes, and to reserve the time when the same scanning cycle cannot run the same axis at the same time.