Application of LB series and K1 servo driver of Huada servo motor in slitting machine

Application of LB series and K1 servo driver of Huada servo motor in slitting machine

1.Introduction

The sewing machine is an important splitting, cutting and sewing equipment in the woven bag industry. It does not need any mold. It directly cuts and sews the products according to the cutting and sewing production process of the woven bag through the control of the system software. It only needs to set the corresponding parameters on the operation platform, and it is highly automated, simple to operate, and the products produced are standard and tidy. It can completely replace the previous heavy physical labor, reduce the error rate, reduce the human consumption, and integrate the performance advantages of the woven bag equipment of the sewing machine, which inject new vitality into the production of woven bags and improve the production efficiency.

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Characteristics are as follows

1、 It can automatically finish the fixed length thermal cutting and bottom sewing of the woven tube cloth, saving labor.

2、 Touch screen setting, PLC control, servo motor drive, precise control of bag length.

3、 After thermal cutting, the bag does not stick and is easy to open.

4、 Automatic counting, bag can be stacked.

5、 Pneumatic feeding, convenient operation and labor saving.

2.Equipment function and commissioning requirements

This product is suitable for the processing and packaging of various cement bags, flour bags, feed bags, sugar bags, fertilizer bags, etc. All processes of feeding, folding, sewing, breaking, receiving, cutting and counting of woven bags can be completed by one person, which are closely matched and do not interfere with each other.

The equipment process is divided into roll up – cutting – holding – sewing bottom – bag collection.

The correct operation method of the whole machine of weaving bag hot seam.

1The woven bag hot seam machine hangs the cloth on the shaft, on the pressing wheel which overwhelms the hot seam, the pneumatic automatic feeding.

2Automatic correction.

3Color mark tracking, servo control bag length.

4Hot cutting, automatic rubbing, cold knife device.

5PLC centralized control, color man-machine interface, set data, display and record.

6Frequency control, automatic counting.

7 Automatic bag folding and conveying.

Device parameters

Rated voltage: two-phase / three-phase

Sewing needle pitch: 5-14mm

Bag cutting speed: 20 ~ 40pcs / min

Bag cutting length: 500 ~ 1300mm

Bag cutting width: 800mm

Debugging requires precise positioning of servo driver to ensure uniform bag length and neat stitching track.

2.System building

System composition: PLC, touch screen

Servo configuration:K1AS08AA*2K1AS15AAK1AS30AA

Motor model: 60ST-M01930 (cold knife), 80ST-M02430 (bag shooting), 110ST-M05030 (mechanical claw), 130ST-M15025 (roller)

Cold knife, mechanical claw, roller wiring (pulse position control)

PLC side Servo DB25 terminal Remark
Pulse 1 Connection 2K resistance
Direction 2 Connection 2K resistance
0v 141563  
Pulse cleaning 19  
Alarm output 16  

 Bag shooting (internal position control)

PLC side Servo DB25 terminal Remark
0v 6  
Return home signal 20 Pnp
Start signal 7  
0v 3  
Alarm output 16  

The host computer is connected with the control end of the servo driver, and the driver and related calculation base plate are fixed in the electric cabinet. The servo driver receives the pulse command from the host computer and drives the motor to drive the machine head to complete the corresponding action.

2.Related parameter settings

Cold knife (pulse position control)

Parameter number Set value Meaning
PA000 0010  Control mode
PA005 2  Motor code
PA006 20  

Electrical machinery manufacturer

PA100 700 Velocity loop gain
PA102 200 Position loop gain
PA202 10  

Electronic gear ratio molecule

PA509 9909 Internal enable

 Mechanical gripper (pulse position control)

Parameter number Set value Meaning
PA000 0010  Control mode
PA005 13  Motor code
PA006 20 Electrical machinery manufacturer
PA100 800  Velocity loop gain
PA102 330  Position loop gain
PA202 10 Electronic gear ratio molecule
PA509 9909 Internal enable

Roller wiring (pulse position control)

Parameter number Set value Meaning
PA000 0010  Control mode
PA005 27  Motor code
PA006 80 Electrical machinery manufacturer
PA100 800 Velocity loop gain
PA102 180 Position loop gain
PA202 5 Electronic gear ratio molecule
PA509 9909  Internal enable
PA510 0010  Pulse cleaning

Bag shooting (internal position control)

Parameter number Set value Meaning
PA000 00C0 Control mode selected as internal position
PA005 5  Motor code
PA006 20  Manufacturer code
PA200 0002  Clear offset pulse
PA509 9909  Internal enable
PA510 0000  Definition of input port
PA512 9293  Definition of input port
PA700 2 Group 0 data group mode
PA701 0000 Position low (unit 1 pulse)
PA702 0004 Position high (unit: 10000 pulse)
PA703 500  running speed
PA704 1002  Change condition
PA770 100b  Return to zero mode

The sewing machine is equipped with Huada servo motor LB series and K1 servo driver, which can realize automatic loading and unloading, uniform bag length, neat sewing track, stable operation, fast rhythm, high efficiency, and fully meet customer requirements.

 


Post time: Mar-04-2020