CN1038862C - Operating mechanism of loom - Google Patents
Operating mechanism of loom Download PDFInfo
- Publication number
- CN1038862C CN1038862C CN 92111343 CN92111343A CN1038862C CN 1038862 C CN1038862 C CN 1038862C CN 92111343 CN92111343 CN 92111343 CN 92111343 A CN92111343 A CN 92111343A CN 1038862 C CN1038862 C CN 1038862C
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- electromagnetic switch
- loom
- board motor
- order
- switch
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Abstract
To readily specify a consumed contact point and to suppress consumption of contact point in changing a driving pattern of a frame motor by ON-OFF of contact point of plural electromagnetic switches by providing a specific electromagnetic switch with practically changing function. Change of driving pattern of a frame motor 1 to cause vertical movement of a heald 5, longitudinal movement of a reed 6, rotation of a surface roller 8, etc., in a weaving machine is carried out by opening and closing of plural electromagnetic switches MC1 6 by changing connection constitution of primary windings CL1, CL2 and CL3 to Y connection or DELTA, etc. Among the above-mentioned constitution, ON-OFF timings of specific electromagnetic switches MC5 and MC6 are slightly staggered from timing of other electromagnetic switches MC1-4 and are made coincident with switching timing of power supply and stop from a main electric source VM or an inverter electric source VI to the frame motor 1 so that consumption of contact point by ON-OFF is concentrated on the electromagnetic switches MC5 and MC6.
Description
The present invention relates to the loom rotating device.More particularly, relate to and to change the loom rotating device of board motor type of drive by switching the connection in the driving loop of using a plurality of electromagnetic switch.
In the past, it is well known that the board motor had the loom rotating device of a plurality of type of drive.For example, the clear 60-50899 of Japan special permission communique proposes a kind of only when loom starts, adds overvoltage above rated voltage for the primary coil of board motor, to increase detent torque, after the startup, when loom reached normal rotation, the added voltage value of primary coil recovered the device of rated voltage.On this loom that has earlier, the board motor is connected to three electromagnetic switch.Like this, the combination of the ON-OFF state by each electromagnetic switch switches to star-star-delta connection Y-Y-to primary coil when starting, switch to bifurcation shape connection during normal operation.
In addition, on the loom that another kind has earlier, use 6 electromagnetic switch, the combination of the ON-OFF state by changing these contacts produces sequential chart shown in Figure 3, can carry out the running of primary coil star-star-delta connection Y-Y-and bifurcation shape connection.In addition, can also carry out the crawl of motor forward and backward.Reverse inching turning can use when the lump in the abdomen defect appears in fabric the fall back situation of specified rate of fabric; Normal inching turning can be used on and makes reed enter into the situation of assigned position.In addition, when the forward and backward crawl, the contact of electromagnetic switch carries out the ON-OFF conversion continually causes contact very fast damage to grind.
In general, open and close (ON-OFF) when action at the contact that makes a plurality of electromagnetic switch, the electromagnetic switch contact of last closed (ON) and the earliest disconnection (OFF) electromagnetic switch contact wear and tear soon.This is owing to flow through the electric current of contact sharply variation to take place.
But on the device that formerly has, the switching of the contact of each electromagnetic switch (ON-OFF) regularly almost is simultaneously.Therefore, be difficult to the degree of wear of each electromagnetic switch contact of comparison, and when causing device to break down, have again and can't determine easily which electromagnetic switch is the problem that must repair because of the contact damage.In addition, take place, can all strengthen the contact rating of whole electromagnetic switch, but this method can make cost rise inevitably for fear of the above-mentioned state of affairs.
The present invention In view of the foregoing forms, and its first purpose provides a kind of loom rotating device, and when it drove at the board motor, even under the frequent situation about opening and closing of the contact of electromagnetic switch, the damage that also can suppress the mill of these contacts prolonged its life-span.
Second purpose provides a kind of loom rotating device, and it can easily determine the position when contact weares and teares.
According to an aspect of the present invention, a kind of rotating device of loom, it is provided with:
Board motor (1), in order to driving described loom, this board motor (1) have three windings (CL1, CL2, CL3);
Power supply (VM, VI), in order to described board motor (1) supply capability;
A plurality of electromagnetic switch (MC1, MC2, MC3, MC4, MC5 MC6), is connected with a described winding respectively, in order to described board motor (1) selectively is connected to described power supply, thereby make this loom selectively set each drive pattern of the normal operation of loom, normal inching turning and reverse inching turning
It is characterized in that:
Running switch (S1), it is operated the drive pattern with the normal operation of setting loom, selects three electromagnetic switch (MC1, MC4, combination MC6) of normal operation usefulness from described a plurality of electromagnetic switch according to this operation;
Normal inching turning is with switch (S3), and it is operated the drive pattern with the normal inching turning of setting loom, three electromagnetic switch (MC2, MC4, combination MC6) of selecting normal inching turning to use from described a plurality of electromagnetic switch according to this operation;
Reverse inching turning is with switch (S4), and it is operated the drive pattern with the reverse inching turning of setting loom, three electromagnetic switch (MC2, MC3, combination MC6) of selecting reverse inching turning to use from described a plurality of electromagnetic switch according to this operation; With
Control device in order in three electromagnetic switch using according to the selected drive pattern of above-mentioned each operation, is determined a specific electromagnetic switch (MC6), makes above-mentioned power supply power and stop power supply to described board motor in view of the above.
According to a further aspect in the invention, a kind of rotating device of loom has:
Board motor (1), in order to driving described loom, this board motor (1) have three windings (CL1, CL2, CL3);
Power supply (VM, VI), in order to described board motor (1) supply capability;
A plurality of electromagnetic switch (MC1, MC2, MC3, MC4, MC5 MC6), is connected with a described winding respectively, in order to described board motor (1) selectively is connected to described power supply, thereby make this loom selectively set each drive pattern of the normal operation of loom, normal inching turning and reverse inching turning
It is characterized in that:
Each drive pattern of described loom contains in order to start the pattern of described loom;
Described power supply contains in starting and when select running well, in order to the main power source (VM) of described board motor (1) power supply and select just to change and during reverse inching turning to the auxiliary power (VI) of described board motor (1) power supply;
Described electromagnetic switch contains:
First and second electromagnetic switch, in order to above-mentioned board motor (1) selectively is connected in described main power source (VM) and auxiliary power (VI), in starting and when running well, make first electromagnetic switch (MC1) action, and just changeing and making second electromagnetic switch (MC2) action during reverse inching turning;
The the 3rd and the 4th electromagnetic switch (MC3, MC4), in order to the winding of described board motor (1) and the connection status between described main power source (VM) and the auxiliary power (VI) are changed, thereby described board motor (1) is selectively just changeed and reverse, when starting, normal operation and normal inching turning, make the 4th electromagnetic switch (MC4) action, and when reverse inching turning, make the 3rd electromagnetic switch (MC3) action;
The the 5th and the 6th electromagnetic switch (MC5, MC6), switch to △ line and Y line in order to connection status and be connected in described board motor (1) the winding of described board motor (1), when loom starts, make the 5th electromagnetic switch (MC5) action, and running well, just changeing and making during reverse inching turning the 6th electromagnetic switch (MC6) action;
Control computer (C) in order to when selecting each drive pattern of loom, makes the action of specific electromagnetic switch be later than other electromagnetic switch.
When the contact of a plurality of electromagnetic switch opens and closes, when specific electromagnetic switch closure or disconnection, power or stop power supply just for actual beginning of board motor.Therefore, the loss that produces owing to the on-off action of contact just only limits to specific electromagnetic switch, and the contact of other electromagnetic switch can loss.Like this, just can concentrate on the loss of contact on the specific electromagnetic switch, therefore being easy to definite which electromagnetic switch must repair.
In addition, if the contact rating of specific electromagnetic switch is strengthened, with regard to the damage of this contact of deferrable.Especially when carrying out the type of drive of rotating crawl repeatedly,, also can prevent owing to contact decreases the fault that ring causes even under frequently switching situation of contact.In addition, the contact rating of not participating in power supply and left alone without help TURP other electromagnetic switch of changing basically directly can reduce, and therefore helps reducing cost.
As follows to description of drawings:
Fig. 1 is the loom summary side elevation that one embodiment of the present of invention are implemented in expression;
Fig. 2 is a sequential chart, and the ON-OFF sequential of electromagnetic switch on the loom shown in Figure 1 is described.
Fig. 3 is preface figure, and illustrating has the ON-OFF of electromagnetic switch on device sequential earlier.
Symbol description is as follows among the figure:
MC1, MC2, MC3, MC4, MC5, MC6... electromagnetic switch.
1...... board motor.
MC5, the electromagnetic switch that MC6... is specific.
Explain an embodiment that the present invention is specialized according to Fig. 1 and Fig. 2 below.
Fig. 1 is the side view of expression loom summary.Board motor 1 detects the detection signal of using rotary encoder 13 according to the board anglec of rotation, accepts the action control of control computer c.By the warp thread T that sends through axle 2,, pass heald frame 5 and reed 6 through back flow roll 3, idler roller 4.Come out by knitting front position w1.The cloth W that weaves twists on the cloth beam 11 through idler roller 7, straight roll 8, pressure roller 9.
Cause that the switching campaign of heald frame 5, the reed of reed 6 play motion, and the board motor 1 of the rotation of straight roll 8, three elementary line chart CL1 are equipped with, CL2, CL3.Give each elementary line chart CL1, the supply of electric power of CL2 and CL3 is according to electromagnetic switch MC1, MC2, and MC3, MC4, the open and-shut mode of MC5 and MC6 is undertaken by mains current VM or inverter power supply VI.
Mains supply is having only electromagnetic switch MC1, when MC4 and MC5 are in closure state, or has only electromagnetic switch MC1, and when MC4 and MC6 were closed, board motor 1 just rotated.Have only electromagnetic switch MC1, when MC4 and MC6 were in closure state, primary coil CL1, CL2 and CL3 were connected into bifurcation type connection, added rated voltage for board motor 1.Have only electromagnetic switch MC1, when MC4 and MC5 were in closure state, primary coil CL1, CL2 and CL3 were connected into △ type connection, added the overvoltage that surpasses rated voltage for board motor 1.
Inverter power supply VI is at electromagnetic switch MC2, when MC4 and MC6 three are in closure state, or electromagnetic switch MC2, when MC3 and MC6 three are in closure state, can make board motor 1 crawl.Electromagnetic switch MC2, when MC4 and MC6 three are in closure state, board motor 1 normal inching turning, electromagnetic switch MC2, when MC3 and MC6 three are closed, board motor 1 reverse crawl.
In other words, by switching the open and-shut mode of electromagnetic switch MC1～MC6, the circuit that is used to drive board motor 1 can change the connection of primary coil, forms four kinds of type of drive.
Control computer C is connected to running switch S 1, halt switch S2, normal inching turning switch S 3 and reverse inching turning switch S 4 respectively.Control computer C is according to the input signal of each switch S 1～S4, instructs the open and-shut mode of each electromagnetic switch MC1～MC6.
So, when running switch S 1 was carried out ON (closure) operation, control computer C responded this ON signal, makes the contact of electromagnetic switch MC1 and MC4 be in the ON state simultaneously, produces sequential chart as shown in Figure 2.Then, the setting-up time t1 that imports in advance by input unit 14 in the past after, computer C makes the contact of electromagnetic switch MC5 be in the ON state.Make 3 electromagnetic switch MC1, MC4 and CM5 are in the ON state, just make the primary coil CL1 of board motor 1, and CL2 and CL3 constitute △ type connection.This connection makes to be added in primary coil CL1, and the voltage between CL2 and the CL3 is for surpassing the overvoltage of rated voltage, the result, and board motor 1 is that big torque begins to start when more normally turning round.
The firm rotation of board, when reaching the board anglec of rotation of regulation, control computer C just responds the rotation output signal of sign indicating number device 13 partially, as shown in Figure 2, makes three electromagnetic switch MC1, and the contact of an electromagnetic switch MC5 among MC4 and the MC5 switches to the OFF state.Then, control computer C makes the contact of electromagnetic switch MC6 be in the ON state through after the setting-up time t2 that is imported in advance by input unit 14.Switch by this ON-OFF, just the △ type connection with primary coil switches to wye connection, makes board motor 1 change normal operation over to.
When running well halt switch S2 being carried out the ON operation, control computer C responds this ON signal, as shown in Figure 2, the contact of electromagnetic switch MC6 is switched to OFF.Then, computer C makes the contact of two electromagnetic switch MC1 and MC4 switch to the OFF state simultaneously after passing through the setting-up time t3 that is imported in advance by input unit 14.This setting-up time t3 sets according to the normal rotary speed data of board motor.Board motor 1 is on the position, board angle of revolution of regulation, that is reed 6 just in time stops on the position before reed is beaten.In addition, going into the occasion that latitude is bad and warp thread cuts off, the input signal of control computer C response regulation sends the instruction that stops to move for board motor 1, is in preparation simultaneously from each switch S 1, S3, the holding state of S4 input signal.
Under motor 1 stopped status, when normal inching turning switch S 3 was carried out the ON operation, control computer C responded this ON signal, and the contact of two electromagnetic switch MC2 and MC4 is switched to the ON state simultaneously.Then through after the setting-up time t1, computer C switches to the ON state to the contact of electromagnetic switch MC6.By making this electromagnetic switch MC6 switch to the ON state, just make the primary coil CL1 of board motor 1, CL2, CL3 become by inverter VI and power.At this moment, primary coil CL1, CL2 has added the voltage littler than rated voltage between the CL3.Board motor 1 just just changes with slow rotary speed when running well as a result.
Do OFF when operation as normal inching turning switch S 3, control computer C switches to the OFF state with the contact of electromagnetic switch MC6, then, behind setting-up time t1, the contact of two electromagnetic switch MC2 and MC4 is switched to OFF simultaneously.This normal inching turning for example is used in the occasion that reed 6 is incorporated into institute's allocation.
In addition, as doing ON operation to being used for reverse inching turning switch S 4, control computer C replys this ON signal, and the contact of two electromagnetic switch MC2 and MC3 is switched to the ON state simultaneously.Then, behind setting-up time t1, computer C switches to the ON state with the contact of electromagnetic switch MC6.Because the ON state of this electromagnetic switch MC6, supply with the primary coil CL1 of board motor 1, CL2, CL3 by the electric power of inverter power supply VI.At this moment, primary coil CL1, CL2, the opposite voltage of direction when being added with between CL3 with normal inching turning.As a result, board motor 1 is to be slower than the rotary speed counter-rotating of permanent speed.
When the switch S 4 that reverse inching turning is used was carried out the OFF operation, control computer C switched to the OFF state to the contact of electromagnetic switch MC6, then through after the setting-up time t1, the contact of two electromagnetic switch MC2 and MC3 is switched to the OFF state simultaneously.This reverse inching turning can be used for, and for example, when occurring the lump in the abdomen defect on the cloth, cloth is swung to knit the front side, revises the occasion of lump in the abdomen defect happening part.
As mentioned above, in this embodiment, among 6 electromagnetic switch MC1～MC6, form 4 kinds of combinations by 3 electromagnetic switch respectively, set 4 kinds of type of drive of loom, promptly start, normal operation, normal inching turning and reverse inching turning.And, in order to carry out the running under each state, in 3 electromagnetic switch of each group,, make motor 1 beginning or stop power supply by switching the ON-OFF state of a specific electromagnetic switch.
In addition, in this embodiment,, control the beginning of actual supply of electric power or stop by switching the ON-OFF state of specific among 6 electromagnetic switch MC1～MC6 two electromagnetic switch MC5 and MC6.Thereby because the wearing and tearing that contact ON-OFF causes, only limit is on these two electromagnetic switch MC5 and MC6, and the contact of other electromagnetic switch MC1～MC4 does not does not wear and tear.
Therefore, in this embodiment, just be easy to find out the switch that to repair during the contact consume.In addition, in this embodiment, different with prior art, there is no need to strengthen the contact rating of whole electromagnetic switch, the contact rating of other electromagnetic switch MC1～MC4 of the switching that does not participate in the power supply supply basically and stop can reduce, so help reducing cost.
In addition, if strengthen the contact rating of specific electromagnetic switch MC5 and MC6, just can postpone the contact wearing and tearing, when carrying out the rotating crawl especially repeatedly, the ON-OFF switching also can prevent because the fault that the contact consume causes even contact carries out continually.
In addition, the present invention is not limited to the foregoing description certainly, can change its formation in the scope that does not break away from the invention aim.For example, the setting of the electromagnetic switch contact ON-OFF time t1-t3 that staggers regularly also can realize with relay without computer.Moreover, in the present embodiment, take on power supply in fact and electromagnetic switch that have a power failure to switch without MC5, the combination of MC6, and use MC1, the combination of MC2 or MC3 and MC4 equally also can be controlled certainly.
As what describe in detail above,, just can switch the type of drive of board motor with specific electromagnetic switch if adopt loom rotating device of the present invention.Thereby, even carrying out ON-OFF continually, the contact of electromagnetic switch switches, the also specific contact of loss only, and be easy to find out the contact of damage.In addition, owing to suppressed the abrasion of electromagnetic switch contact in addition of certain electric magnetic switch, so can life-saving.
Claims (3)
1. the rotating device of a loom, it is provided with:
Board motor (1), in order to driving described loom, this board motor (1) have three windings (CL1, CL2, CL3);
Power supply (VM, VI), in order to described board motor (1) supply capability;
A plurality of electromagnetic switch (MC1, MC2, MC3, MC4, MC5 MC6), is connected with a described winding respectively, in order to described board motor (1) selectively is connected to described power supply, thereby make this loom selectively set each drive pattern of the normal operation of loom, normal inching turning and reverse inching turning
It is characterized in that:
Running switch (S1), it is operated the drive pattern with the normal operation of setting loom, selects three electromagnetic switch (MC1, MC4, combination MC6) of normal operation usefulness from described a plurality of electromagnetic switch according to this operation;
Normal inching turning is with switch (S3), and it is operated the drive pattern with the normal inching turning of setting loom, three electromagnetic switch (MC2, MC4, combination MC6) of selecting normal inching turning to use from described a plurality of electromagnetic switch according to this operation;
Reverse inching turning is with switch (S4), and it is operated the drive pattern with the reverse inching turning of setting loom, three electromagnetic switch (MC2, MC3, combination MC6) of selecting reverse inching turning to use from described a plurality of electromagnetic switch according to this operation; With
Control device in order in three electromagnetic switch using according to the selected drive pattern of above-mentioned each operation, is determined a specific electromagnetic switch (MC6), makes above-mentioned power supply power and stop power supply to described board motor in view of the above.
2. the rotating device of a loom has:
Board motor (1), in order to driving described loom, this board motor (1) have three windings (CL1, CL2, CL3);
Power supply (VM, VI), in order to described board motor (1) supply capability;
A plurality of electromagnetic switch (MC1, MC2, MC3, MC4, MC5 MC6), is connected with a described winding respectively, in order to described board motor (1) selectively is connected to described power supply, thereby make this loom selectively set each drive pattern of the normal operation of loom, normal inching turning and reverse inching turning
It is characterized in that:
Each drive pattern of described loom contains in order to start the pattern of described loom;
Described power supply contains in starting and when select running well, in order to the main power source (VM) of described board motor (1) power supply and select just to change and during reverse inching turning to the auxiliary power (VI) of described board motor (1) power supply;
Described electromagnetic switch contains:
First and second electromagnetic switch, in order to above-mentioned board motor (1) selectively is connected in described main power source (VM) and auxiliary power (VI), in starting and when running well, make first electromagnetic switch (MC1) action, and just changeing and making second electromagnetic switch (MC2) action during reverse inching turning;
The the 3rd and the 4th electromagnetic switch (MC3, MC4), in order to the winding of described board motor (1) and the connection status between described main power source (VM) and the auxiliary power (VI) are changed, thereby described board motor (1) is selectively just changeed and reverse, when starting, normal operation and normal inching turning, make the 4th electromagnetic switch (MC4) action, and when reverse inching turning, make the 3rd electromagnetic switch (MC3) action;
The the 5th and the 6th electromagnetic switch (MC5, MC6), switch to △ line and Y line in order to connection status and be connected in described board motor (1) the winding of described board motor (1), when loom starts, make the 5th electromagnetic switch (MC5) action, and running well, just changeing and making during reverse inching turning the 6th electromagnetic switch (MC6) action;
Control computer (C) in order to when selecting each drive pattern of loom, makes the action of specific electromagnetic switch be later than other electromagnetic switch.
3. the rotating device of loom as claimed in claim 1 is characterized in that, in the electromagnetic switch that described selecteed drive pattern is used, has predetermined switching difference between a specific electromagnetic switch and remaining electromagnetic switch.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP333656/91 | 1991-12-17 | ||
| JP33365691A JP2946895B2 (en) | 1991-12-17 | 1991-12-17 | Loom operation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1074962A CN1074962A (en) | 1993-08-04 |
| CN1038862C true CN1038862C (en) | 1998-06-24 |
Family
ID=18268501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92111343 Expired - Fee Related CN1038862C (en) | 1991-12-17 | 1992-09-30 | Operating mechanism of loom |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2946895B2 (en) |
| CN (1) | CN1038862C (en) |
-
1991
- 1991-12-17 JP JP33365691A patent/JP2946895B2/en not_active Expired - Fee Related
-
1992
- 1992-09-30 CN CN 92111343 patent/CN1038862C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05163642A (en) | 1993-06-29 |
| JP2946895B2 (en) | 1999-09-06 |
| CN1074962A (en) | 1993-08-04 |
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