First, foreword
The heavy pound loom is the sword pole loom one
kind, it and the common loom difference mainly lies in:
1st, its sword pole is not the general circling
sword pole, it is the rigid sword pole! Its this kind of
characteristic can enable it to complete the matter which the common
loom is unable to do, namely the heavy pound weaves the function to
weave the glass filament latitude product! Is precisely because
of this spot, this final customer selects our Jinan this family loom
factory loom!
2nd, its fabric generally may be the denim
equipollent, the thick fabric, the common loom cannot realize!
Three warp beams heavy pound looms were this customer increase
two days warp beams, in his original common heavy pound loom
foundation have been big 卷装, the increase reason lay in the
customer demand double-decked cloth fabric, the increase two warp
beams is uses for to realize this function!
So far, this loom domestic are very few, does not even have!
Therefore no matter from the loom machinery, the electrical
disposition, the fabric structure, the craft all is exploring,
regarding this therefore we have melted the quite long exploration,
because the domestic this entire machine prototype, the electrical
disposition, the software programming, the circuit design all have not
referred to the object! This system electricity disposition is
we in exchanges, the scene investigation and study many times with the
customer forms!
To present up to, fabric although is not very ideal, but from
the electrical disposition aspect, I thought already succeeds
announces a victory! Therefore I and everybody will share this
project case together!
Second, system constitution
This electrical system mainly divides two parts,
namely the host partially controls, three warp beams electrically
controlled parts. The host controls partially by the mechanical
factory manufacture, it mainly realizes to the main axle control,
including: The spot moves, drives, after stops, the latitude
stops and so on the function! It is completes by monolithic
integrated circuit +LCD! Another part is three warp beams
control section, it is the most important part, because its quality
direct influence fabric is whether qualified, changes the project
whether succeeds!
Three warp beams partial mainly use DELTA the A 7.5
men-machine contact surfaces, the EH 20 programmable controllers
(transistor output), three 0.75KW the A exchange servo
driver, a 360 increases encoders composition! Take the
programmable controller as CPU; Take man-machine contact surface
as parameter hypothesis connection contact surface; Uses the
MODBUS agreement to the big 卷装 communication control; After
uses the high speed pulse control to two days! Concrete system
constitution as follows:
1st, hardware system:
C, system skeleton:
Explained:
(1) three servos separately control 1, 2 days after, the big
卷装 equipment
(2) 1, 2 servos use the pt pattern pulse control;
The big 卷装 servo uses DELTA MODBUS the RTU communication control (PLC is MASTER, the big
卷装 servo is SLAVER!
(3) the encoder installs on the main axle, uses for to test the
angle!
(4) the DVP20EH00T programmable controller has two group 200KHZ
pulse out-port
2nd, software system:
The software programming is in the electrical system disposition
situation, the union technological requirement compilation becomes!
It including man-machine contact surface procedure, programmable
controller procedure! Concrete structure as follows:
A, overall skeleton:
Explained:
(1) the master routine partially uses for to
process the logical craft, the input, output processing!
(2) 1, 2 subroutines use for to 1, 2 warp beams
speed hypothesis!
(3) severs uses for to process the high speed pulse
to input Z to process!
B, man-machine partial contact surfaces:
Explained:
(1) in this picture partially uses for to process
delivers after the angle, the encoder angle, the step hypothesis
(2) under the partial pictures mainly use
for to establish 1, 2 days warp beams each step speed size!
(3) PLC counts by the total step to 1, 2 warp beams
speeds controls in turn!
Explained:
(1) this picture mainly uses for to demonstrate 1,
2 warp beams 30 sections of hypotheses corresponding speeds size!
Explained:
(1) this picture main processing spot moves 1, 2
warp beams, the great 卷装 speed!
Third, craft characteristic
This loom craft is decided according to the fabric
craft. It divides four parts:
1st, double warp beam synchronization:
In the start, stops, in the movement process two axes requests
synchronization movement, if synchronized that cannot appear the
fabric cloth cover to have the mark, namely is uneven!
Simultaneously each step all must have the corresponding
speed/to transfer!
2nd, double-decked cloth structure:
The fabric is the glass filament latitude material, in forms in
the double-decked cloth process to have two ways, namely 8 glyph, X
shape! Two kind of forms cloth covers to the electrical craft,
namely the PLC programming mentality have the very big difference, in
here, it mainly is 8 glyph crafts!
3rd, hits the latitude angle with to deliver after
the time:
Main axle 360, hit the latitude is the existence certain angles,
it acts according to the different loom in the actual debugging is
different, generally about 100~350! Also meant that, between
0~360, my pair of day warp beam delivers after the quantity, delivers
after the time must with hit latitude synchronization, this is very
important! In other angles, two warp beams speeds may be 0
rotational speeds or other!
4th, the dobby step with delivers after the
quantity:
The dobby has the machinery/electricity two control modes, no
matter how, the dobby craft does deliver after the quantity size, the
cloth cover structure to me has the very big direct relations!
This system it is the machinery control, namely multi- arms
paper hole decision dobby work (综框 work)! It completely
suddenly is 30 steps! Each step delivers after the electrical
machinery has the corresponding speed correspondence! The
encoder calculates its revolution step!
Fourth, debugging and conclusion
This system should say that, as a result of all
sorts of reasons, from starts the plan discussion, the design, the
revision, the discussion, the scene debugging altogether passes
through for more than a year! Presently reorganizes in the
debugging process the related matters concerned:
1st, servo establishment: The servo-control
way, the gain, the electronic gear ratio, adds, decelerates and so on
the parameter!
2nd, communication establishment: PLC, big
卷装 servo communication form
3rd, electrical zero point/mechanical
zero point establishment:
This is very important, because it directly relates hits the
latitude/综框, two days warp beams servos synchronization question!
Therefore the initial point moves must realize two zero points
to be unified!
Reference
1st, the sword pole loom principle with used Chen Yuanfu Hong Haicang to
edit the Chinese spinning and weaving publishing house in 1994
2nd, in the ASDA series exchange servo driver
application technical manual reaches the electricity to
pass the limited liability company in 2004 the version
3rd, in the DOPA series man-machine contact surface application technical
manual reaches the electricity to pass the limited liability company in 2003 the version
4th, in DVP-PLC application technical manual procedure reaches the electricity to pass the limited liability
company in August, 2003 the version
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