Application summary of Delta 20PM controller in packaging film punching machine: This paper mainly introduces the application of Delta 20PM motion controller in food packaging film punching machine, which involves its chasing control function and high speed comparison and high speed capturing function.
Keywords: packaging film 20PM flying shear chasing high-speed capture In the food industry, some packaging film must be punched before packaging, otherwise after heat sealing, completely enclosed will contain a lot of air, which is not conducive to transportation. The original application situation was that the transport speed of the packaging film and the packaging material was consistent, and a special extremely fast cylinder was used to punch the moving packaging film. However, the use of such a cylinder is highly susceptible to damage due to frequent running operations, and the maintenance cost is very high. Moreover, such cylinders have a long ordering period and are expensive, which is a big expense for many companies. In order to reduce costs, manufacturers urgently need a simple and durable alternative to punching equipment.
The use of Delta 20PM on the packaging film punch is an excellent solution to meet this requirement.
The 20PM control AC servo motor is used on the new packaging film punching machine to drive the mechanical structure to move left and right. The absolute rest of the intermediate part of the packaging film is achieved during the movement, at which point the cylinder punching operation is performed (Fig. 1).
With this structural device, it is possible to achieve the effect that the film is not stopped before and after, and only the middle portion of the packaging film is stopped.
Equipment Appearance System The control system uses a full range of Delta products. The specific configuration is shown in Figure 2.
System configuration control analysis There are two control points for this device: *, so that the mechanical moving parts follow the film feed speed change to achieve absolute stillness, using the electronic cam's chasing function. The color mark signal is used to control the movement of the cam, so the aperiodic cam mode is used; second, the punching position is convenient to adjust.
1. The chasing function program uses the automatic establishment of the chasing CAMDATA mechanism. The automatic chasing function is generated by two flying shear command statements. The flying shear function statement is defined in this device control. The line speeds during synchronization are not equal, but V1=2*V2.
* A flying shear statement is set according to the above format. The D102 and D103 of the second flying shear statement are set to the negative value of the * statement from the axis length, and the D111CAM curve is set to H8000, so that the two flying shears can be used to automatically achieve the chasing function.
Execute the statement and the generated CAM curve is shown in Figure 5.
The CAM graph non-periodic cam control frame is shown in Figure 6.
Aperiodic cam control frame Figure 2. High-speed comparison and capture Since the color-coded sensor has a signal that is not a hole to be punched, the color-coded signal cannot be used as the start signal of the aperiodic cam. Therefore, the spindle encoder signal is connected in parallel to MPG1, two high-speed calculations and one high-speed capture are set, and C204 is started. The color-coded signal is used as a high-speed capture signal, and the current value of C204 is captured after each color-coded signal. Then use the current value of C204 plus the number of pulses to be delayed (ie, the punch position adjustment value), and use two high-speed comparisons to control the turn-on and turn-off of CLR1. Then use the CLR1 signal to trigger START0 to start the aperiodic cam.
High-speed comparison and capture setting control program 1. Parameter initialization 2. Flying shear curve creation 3. High-speed comparison and capture setting conclusion The current equipment is running well, and the punching can be accurately performed regardless of the fast and slow transmission speed of the packaging film. Moreover, the punch position can be conveniently adjusted on the text controller. The customer is very satisfied with the punching effect and is ready to replace similar equipment on all production lines.
Keywords: packaging film 20PM flying shear chasing high-speed capture In the food industry, some packaging film must be punched before packaging, otherwise after heat sealing, completely enclosed will contain a lot of air, which is not conducive to transportation. The original application situation was that the transport speed of the packaging film and the packaging material was consistent, and a special extremely fast cylinder was used to punch the moving packaging film. However, the use of such a cylinder is highly susceptible to damage due to frequent running operations, and the maintenance cost is very high. Moreover, such cylinders have a long ordering period and are expensive, which is a big expense for many companies. In order to reduce costs, manufacturers urgently need a simple and durable alternative to punching equipment.
The use of Delta 20PM on the packaging film punch is an excellent solution to meet this requirement.
The 20PM control AC servo motor is used on the new packaging film punching machine to drive the mechanical structure to move left and right. The absolute rest of the intermediate part of the packaging film is achieved during the movement, at which point the cylinder punching operation is performed (Fig. 1).
With this structural device, it is possible to achieve the effect that the film is not stopped before and after, and only the middle portion of the packaging film is stopped.
Equipment Appearance System The control system uses a full range of Delta products. The specific configuration is shown in Figure 2.
System configuration control analysis There are two control points for this device: *, so that the mechanical moving parts follow the film feed speed change to achieve absolute stillness, using the electronic cam's chasing function. The color mark signal is used to control the movement of the cam, so the aperiodic cam mode is used; second, the punching position is convenient to adjust.
1. The chasing function program uses the automatic establishment of the chasing CAMDATA mechanism. The automatic chasing function is generated by two flying shear command statements. The flying shear function statement is defined in this device control. The line speeds during synchronization are not equal, but V1=2*V2.
* A flying shear statement is set according to the above format. The D102 and D103 of the second flying shear statement are set to the negative value of the * statement from the axis length, and the D111CAM curve is set to H8000, so that the two flying shears can be used to automatically achieve the chasing function.
Execute the statement and the generated CAM curve is shown in Figure 5.
The CAM graph non-periodic cam control frame is shown in Figure 6.
Aperiodic cam control frame Figure 2. High-speed comparison and capture Since the color-coded sensor has a signal that is not a hole to be punched, the color-coded signal cannot be used as the start signal of the aperiodic cam. Therefore, the spindle encoder signal is connected in parallel to MPG1, two high-speed calculations and one high-speed capture are set, and C204 is started. The color-coded signal is used as a high-speed capture signal, and the current value of C204 is captured after each color-coded signal. Then use the current value of C204 plus the number of pulses to be delayed (ie, the punch position adjustment value), and use two high-speed comparisons to control the turn-on and turn-off of CLR1. Then use the CLR1 signal to trigger START0 to start the aperiodic cam.
High-speed comparison and capture setting control program 1. Parameter initialization 2. Flying shear curve creation 3. High-speed comparison and capture setting conclusion The current equipment is running well, and the punching can be accurately performed regardless of the fast and slow transmission speed of the packaging film. Moreover, the punch position can be conveniently adjusted on the text controller. The customer is very satisfied with the punching effect and is ready to replace similar equipment on all production lines.
We are a chinese origin manufacturer , we majored in producing rubber products for almost 10 years , which allows us to offer a wide range products for you . Our products now are widely used in clinical injection, transfusion and other packaging. We now have a 100-100000 class cleaning workshop which meets the GMP standard. From input to output, we have a strict quality control throughout the whole production line. We have full test instruments and tools according to the standard documents.
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