CN102719995A - Flat knitting machine - Google Patents
Flat knitting machine Download PDFInfo
- Publication number
- CN102719995A CN102719995A CN2012100870674A CN201210087067A CN102719995A CN 102719995 A CN102719995 A CN 102719995A CN 2012100870674 A CN2012100870674 A CN 2012100870674A CN 201210087067 A CN201210087067 A CN 201210087067A CN 102719995 A CN102719995 A CN 102719995A
- Authority
- CN
- China
- Prior art keywords
- cam carrier
- move
- bar
- needle
- compressing tablet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009940 knitting Methods 0.000 title abstract description 20
- 230000005284 excitation Effects 0.000 claims abstract description 13
- 238000009954 braiding Methods 0.000 claims description 12
- 238000009941 weaving Methods 0.000 claims description 10
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 239000004744 fabric Substances 0.000 abstract description 11
- 239000004065 semiconductor Substances 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- Knitting Machines (AREA)
- Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
Abstract
The invention provides a flat knitting machine which enables the triangular seat carriage of the needle of a pair of needle beds to move along the length direction of the needle beds via a servo motor. The flat knitting machine includes a power brake which cuts out the circuit of the plurality of coilings of the servo motor via a switch and an electric resistance; and a controller which determines whether the triangular seat carriage can move or not based on the state of mechanism of the flat knitting machine and turns on or off the power brake according to whether the triangular seat carriage can move when the excitation of the servo motor is cut off. When a yarn is broken, the servo motor can be stopped and the triangular seat carriage can be manually moved. In addition, under the condition that the member of the flat knitting machine is damaged and the knitted fabric is damaged, the power brake is turned on to prevent the member and the knitted fabric from being damaged.
Description
Technical field
The present invention relates to straight-bar machines, particularly relate to the release mechanism when cam carrier being stopped because of broken yarn etc.
Background technology
In straight-bar machines,, uses cam carrier servomotor for being moved.Straight-bar machines carries out excitation through built-in servo-driver to the coiling energising of servomotor, and makes the servomotor rotation through the servo instruction from servo-driver.And utilize the position of the rotating speed or the cam carrier of sensor monitoring servomotor, feed back to servo-driver.When broken yarn etc. took place, the operator stopped straight-bar machines, connected the operation of yarn etc. through manual working.At this moment, preferably at the backgrounds such as end of knitting width connecting coil appears.Therefore, for example temporarily weave end sometimes, follow, yarn is connected with the end at knitting width again connecting coil occurs through cam carrier is moved to knitting width.When the excitation of servomotor is broken off in addition, cam carrier is slided along needle-bar.
Possess on the straight-bar machines as lopping compressing tablet etc. and can move but the member that can not move round about to a direction.The lopping compressing tablet is with respect to getting in the tooth mouth and retreat freely in addition, and when in the tooth mouth, getting into, pushes knitted fabric and member that braiding is carried out easily, is arranged at cam carrier (with reference to patent documentation 1:WO2007/58272).If this has been in state that the lopping compressing tablet gets into connection yarn etc. and, then cause breakage of lopping compressing tablet or knitted fabric damage etc. sometimes through cam carrier is moved to irremovable direction.
[technical literature formerly]
[patent documentation]
[patent documentation 1] WO2007/58272
Summary of the invention
Problem of the present invention is, when the excitation of servomotor is broken off, can not produce breakage and the damage of knitted fabric etc. of the member of straight-bar machines, and can be moved through manually making cam carrier by the operator.
The present invention is a kind of straight-bar machines, through servomotor the cam carrier of the pin of at least one pair of needle-bar of operation is moved along the length direction of needle-bar, it is characterized in that, comprising:
Power brake constitutes through a plurality of coiling short circuits that said servomotor is possessed; And
Can controller when the excitation of said servomotor is broken off, based on the state of the mechanism of straight-bar machines, judges that can said cam carrier move, move according to cam carrier, and said power brake is switched on or switched off.
The state of the mechanism of straight-bar machines by the output of the sensor of the state of each member of keeping watch on straight-bar machines, control the control data of these members or confirm that as the weave data on the basis of control data etc. the state of preferred means comprises the moving direction of cam carrier.
Among the present invention, if because of broken yarn etc. stops straight-bar machines, the excitation of servomotor is broken off as a result, then utilizes moving of power brake control cam carrier.And judge that based on the state of the mechanism of straight-bar machines can cam carrier move, can move, power brake is switched on or switched off according to cam carrier.Therefore under immovable situation, to when being moved, cam carrier apply big brake force from power brake.At cam carrier movably under the situation, power brake breaks off, and can move through manually making cam carrier in addition.Thus,, can tackle, thereby and can under immovable state, not make cam carrier move the damage of generation member or the damage of knitted fabric etc. by force through cam carrier is moved for the fault of straight-bar machines such as broken yarn.
Preferably, straight-bar machines possesses the sensor that moves that detects said cam carrier, obtains the moving direction of cam carrier from the signal of this sensor.In addition preferably; Said cam carrier possesses the lopping compressing tablet; This lopping compressing tablet is at least with respect to getting in the tooth mouth between a pair of needle-bar and retreat, and, under the state that in the tooth mouth, gets into; Can move to a direction along the length direction of needle-bar but can not move round about, and under the state of retreating from the tooth mouth, can move to arbitrary direction along the length direction of needle-bar along the length direction of needle-bar.The lopping compressing tablet is still retreated the state that is made as the lopping compressing tablet with respect to getting in the tooth mouth, and this is 1 example of state of the mechanism of straight-bar machines.And the state of said controller and lopping compressing tablet relatively; During direction that the moving direction of the cam carrier that in the tooth mouth, gets into and obtain from the signal of said sensor at said braiding compressing tablet can move for the lopping compressing tablet or said lopping compressing tablet when the tooth mouth is retreated; Being judged as said cam carrier can move, and judges in addition situation and can not move for said cam carrier.
So, can not cause weaving compressing tablet damage or knitted fabric damage etc. owing to the lopping compressing tablet moves to irremovable direction.
In addition preferably, straight-bar machines comprises the sensor that moves that detects said cam carrier, and whether just the state of the mechanism of straight-bar machines comprises the cam carrier state of the cam carrier in needle selection,
Controller is at the cam carrier not situation in needle selection and cam carrier in needle selection and under the consistent situation of the weaving direction of the excitation of the moving direction of the cam carrier of obtaining from the signal of sensor and servomotor before breaking off; Being judged as cam carrier can move
Judge in addition situation and can not move for cam carrier.
So, pin is advanced in the triangle of cam carrier along the track beyond the imagination.
Most preferably, the state of the mechanism of straight-bar machines also comprises the lopping compressing tablet with respect to getting into the combination still retreat the zone that exists with cam carrier in the tooth mouth,
The state of controller and lopping compressing tablet and the state of cam carrier are relatively; Under the situation that cam carrier can move, in the tooth mouth, gets into and cam carrier weaves compressing tablet and is under the situation with the zone of the carriage interference of the end of needle-bar or the lopping compressing tablet gets in the tooth mouth when move the end of needle-bar at the braiding compressing tablet; Cam carrier be positioned at the zone of interfering with carriage and situation about moving towards the end of needle-bar under; Being judged as cam carrier can not move
Judge in addition situation and can move for cam carrier.
So, the lopping compressing tablet can not interfered with the carriage of needle-bar end.
Description of drawings
Fig. 1 be embodiment straight-bar machines want portion's vertical view;
Fig. 2 is the block diagram of control system of the straight-bar machines of expression embodiment.
Fig. 3 is the flow chart of the control algolithm of the power brake among the expression embodiment.
[label declaration]
2 straight-bar machines
4 needle-bars
5 tooth mouths
6 cam carriers
8 bands
10 servomotors
12 decelerators
14 power brakes
16 knitting cams
18 needle selecting actuators
20 lopping compressing tablets
24 master controllers
26 three-phase alternating-current supplies
28 servo-drivers
30,36 relays
31～33 contacts
34 power brake controllers
37,38 contacts
40 knitting cam actuators
42 compressing tablet actuators
R1～R3 resistance
51 position sensors
52 sensors
The specific embodiment
The following expression optimum embodiment that is used to carry out an invention.Scope of the present invention should be considered in the record of claim based on the possibility of the change of techniques known and explain.
[embodiment]
Fig. 1～Fig. 3 representes that the straight-bar machines 2,4 of embodiment is a needle-bar, and a pair of needle-bar 4,4 before and after straight-bar machines 2 possesses at least also can possess 4 needle-bars in front and back up and down.Be arranged with a plurality of pins on the needle-bar 4, operate pin through the cam carrier 6 that the length direction along needle-bar 4 moves.Cam carrier 6 moves through servomotor 10 via being with 8 etc., and servomotor 10 possesses decelerator 12 and power brake 14, decelerator 12 can with servomotor 10 one, also can with servomotor 10 splits.
Each knitting cam 16 is provided with needle selecting actuator 18, the pin of needle-bar 4 is carried out needle selection, knitting cam 16 is only operated by the pin of needle selection.On cam carrier 6, be provided with the for example lopping compressing tablet 20 of each 2 of front and back, 4 of totals in addition, its number equates with the number of knitting cam 16.Free to advance or retreat in the tooth mouth 5 of lopping compressing tablet 20 with respect to 4,4 of needle-bars, under the state that in tooth mouth 5, gets into, push knitted fabric down, braiding is carried out easily.And have directionality in the lopping compressing tablet 20 that in tooth mouth 5, gets into, though along needle-bar 4 mobile no problem to a direction, the mobile reason that becomes the damage of lopping compressing tablet 20, the damage of knitted fabric etc. round about.The lopping compressing tablet of retreating from tooth mouth 5 in addition is no matter which side shifting is all no problem to the left and right with respect to needle-bar 4.Therefore, make in some entering tooth mouths 5 of the lopping compressing tablet 20,20 of front and back reverse configuration, so that the direction that lopping compressing tablet 20 can move is consistent with the weaving direction of knitted fabric.
Straight-bar machines 2 also possesses not shown yarn-feeding port and yarn-feeding port track etc. in addition.If cam carrier 6 is moved until the end of needle-bar 4, the lopping compressing tablet 20 that then to tooth mouth 5 in, gets into damages with collision such as the carriage that supports the yarn-feeding port track sometimes.
Fig. 2 representes the control system of embodiment, and the master controller 24 of the integral body of control straight-bar machines is explained weave data, control servo-driver 28 and cam carrier 6.26 is three-phase alternating-current supply, also can be the power supply of the interchange of 2 phases or direct current etc., and S 1 is a position sensor; Keep watch on the rotating speed of servomotor 10; Or the position of keeping watch on cam carrier 6, detect the position of cam carrier 6 thus, and from the variation detection speed of position.30 is relay, and contact 31～33 is opened and closed, if contact 31～33 is opened, then the excitation of servomotor 10 is broken off.Also can replace relay 30 and use semiconductor switch etc.And servo-driver 28 makes cam carrier towards moving from the target location of master controller 24 indications through the current value of control to servomotor 10.Signal through position sensor S1 and by the current value of not shown current sensor monitors in addition, 28 pairs of servomotors of servo-driver 10 carry out FEEDBACK CONTROL.
Judge the moving direction of cam carrier 6 by the signal of sensor 31, in other words judge the direction of rotation of servomotor 10,
Signal through sensor S1 or the position of confirming cam carrier 6 from the signal of servo-driver 28 etc. be the situation in the regulation zones such as end of needle-bar not,
By after the signal of the sensor S2 that states obtain the state of lopping compressing tablet,
Combination through these signals makes power brake 14 connect, break off.
Through knitting cam actuator 40 operation knitting cams, the pin through 18 pairs of needle-bars of needle selecting actuator carries out needle selection, through compressing tablet actuator 42 operation braiding compressing tablets in cam carrier 6.And utilize the sensor S2 that constitutes by proximity transducer etc. to detect the state of lopping compressing tablet.
Fig. 3 representes the control algolithm of power brake.Excitation through making servomotor is broken off, and makes the control of power brake begin (step 1).Power brake is made as disconnection at first in addition, for fear of power brake is connected, makes cam carrier only can move the small predetermined distance about 0.5～3mm.In step 2, obtaining the lopping compressing tablet from the signal of sensor S2 or the control data of compressing tablet actuator etc. all is the state that does not have (retreating), and still some is the state that (in tooth mouth 5, getting into).Be under the situation about, to confirm that in step 3 moving direction of cam carrier is not the irremovable direction of lopping compressing tablet at some lopping compressing tablets.In step 4, confirming does not have cam carrier in the irremovable zones such as end of needle-bar in addition.In this is confirmed; The position that can only confirm cam carrier whether in irremovable zone, the position that perhaps also can confirm cam carrier whether in irremovable zone and the moving direction of cam carrier be direction near the inside in irremovable zone.Among Fig. 3, establish cam carrier not the situation in irremovable zone establish the situation of cam carrier in irremovable zone for not moving for moving.
At the braiding compressing tablet all be then step 2 under the situation about not having, and is then step 4 under the situation about at some braiding compressing tablets, and in step 5, judges whether just in needle selection, as if in needle selection, then not making power brake disconnection (step 7).Just in step 5, confirmed under the situation in needle selection; In step 6, confirm the moving direction situation consistent of cam carrier with weaving direction before this; (step 7) is if the inconsistent power brake that then makes is connected (step 8) if unanimity then makes the power brake disconnection.Weaving direction is for example obtained by the control data of servo-driver or weave data etc.Step 4～6 also can be omitted in addition.
And getting in the tooth mouth 5 of some lopping compressing tablets between needle-bar (step 2) under the situation of " going out "; Moving direction with cam carrier is consistent with the direction that the lopping compressing tablet can move, and (step 3) and cam carrier are present in outside the regulation zone (step 4) and do not carry out at the pin to needle-bar that (moving direction of step 5) or cam carrier and weaving direction are consistent, and (step 6) is a condition, removes power brake (step 7) in the needle selection.Retreat and be under the situation of " not having " (step 2) at all braiding compressing tablets, so that (moving direction of step 5) or cam carrier is consistent with weaving direction, and (step 6) is a condition, removes power brake (step 7) not in needle selection.Under the situation in addition, make power brake connect (step 8).And after execution in step 7 etc., turn back to step 1.About the processing of the lopping compressing tablet in step 2～4, in the straight-bar machines that does not possess the lopping compressing tablet, also can omit in addition.And in the step 4, the whether judgement in the regulation zone of cam carrier, be for the interference of the carriage of the end that prevents needle-bar etc. and lopping compressing tablet etc., in the straight-bar machines of the interference that does not produce carriage and lopping compressing tablet, also can omit.Step 5, the 6th is used in the triangle of cam carrier, preventing that pin from along the processing that the track beyond the imagination advances, also can omit according to the structure of cam carrier.
Can obtain following effect among the embodiment.
Therefore 1) even cam carrier is moved under the also good situation, can move, can easily connect the operation of yarn etc. through manually making cam carrier.
2) cam carrier is moved under the in-problem situation, power brake is connected, therefore can not produce the member of straight-bar machines, the damage of knitted fabric etc.That is, lopping compressing tablet that kind only can be moved to the member that a direction moves to reverse.Lopping compressing tablet and carriage etc. are collided and breakage.And, can not make pin become the state beyond the imagination through cam carrier is moved to the opposite direction of before this weaving direction.
Claims (4)
1. straight-bar machines makes the cam carrier of the pin of at least one pair of needle-bar of operation move along the length direction of needle-bar through servomotor, it is characterized in that, comprising:
Power brake constitutes through a plurality of coiling short circuits that said servomotor is possessed; And
Can controller when the excitation of said servomotor is broken off, based on the state of the mechanism of straight-bar machines, judges that can said cam carrier move, move according to cam carrier, and said power brake is switched on or switched off.
2. straight-bar machines according to claim 1 is characterized in that,
Straight-bar machines possesses the sensor that moves that detects said cam carrier,
Said cam carrier possesses the lopping compressing tablet; This lopping compressing tablet is at least with respect to getting in the tooth mouth between a pair of needle-bar and retreating; And, under the state that in the tooth mouth, gets into, can move to a direction along the length direction of needle-bar but can not move round about along the length direction of needle-bar; And under the state of retreating from the tooth mouth, can move to arbitrary direction along the length direction of needle-bar
The state of the mechanism of said straight-bar machines comprises said braiding compressing tablet at least with respect to the state that gets into the lopping compressing tablet of still retreating in the tooth mouth,
The state of said controller and lopping compressing tablet relatively; During direction that the moving direction of the cam carrier that in the tooth mouth, gets into and obtain from the signal of said sensor at said braiding compressing tablet can move for the lopping compressing tablet or said lopping compressing tablet when the tooth mouth is retreated; Being judged as said cam carrier can move, and judges in addition situation and can not move for said cam carrier.
3. straight-bar machines according to claim 1 and 2 is characterized in that,
Straight-bar machines comprises the sensor that moves that detects said cam carrier,
Whether just the state of the mechanism of said straight-bar machines comprises the cam carrier state of the cam carrier in needle selection,
Said controller,
At the cam carrier not situation in needle selection and cam carrier in needle selection and under the consistent situation of the weaving direction of the excitation of the moving direction of the cam carrier of obtaining from the signal of said sensor and servomotor before breaking off; Being judged as cam carrier can move
Judge in addition situation and can not move for cam carrier.
4. straight-bar machines according to claim 2 is characterized in that,
The state of the mechanism of said straight-bar machines also comprises the lopping compressing tablet with respect to getting into the combination still retreat the zone that exists with cam carrier in the tooth mouth,
The state of said controller and lopping compressing tablet and the state of cam carrier are relatively; Under the situation that cam carrier can move, in the tooth mouth, gets into and cam carrier weaves compressing tablet and is under the situation with the zone of the carriage interference of the end of needle-bar or the lopping compressing tablet gets in the tooth mouth when move the end of needle-bar at the braiding compressing tablet; Cam carrier be positioned at the zone of interfering with said carriage and situation about moving towards the end of needle-bar under; Being judged as cam carrier can not move
Judge in addition situation and can move for cam carrier.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011070466A JP5813975B2 (en) | 2011-03-28 | 2011-03-28 | Flat knitting machine |
| JP2011-070466 | 2011-03-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102719995A true CN102719995A (en) | 2012-10-10 |
| CN102719995B CN102719995B (en) | 2014-12-03 |
Family
ID=46945851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210087067.4A Active CN102719995B (en) | 2011-03-28 | 2012-03-28 | Flat knitting machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5813975B2 (en) |
| CN (1) | CN102719995B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109743000A (en) * | 2018-12-18 | 2019-05-10 | 深圳市优必选科技有限公司 | Servo motor braking circuit, servo motor braking system and braking method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0916759A2 (en) * | 1997-11-13 | 1999-05-19 | Tsudakoma Kogyo Kabushiki Kaisha | Controlling method and apparatus for a flat knitting machine |
| KR100297407B1 (en) * | 1997-10-02 | 2001-10-24 | 신태준 | Automatic knitting-width controlling device of flat knitting machine |
| CN101479417A (en) * | 2006-06-27 | 2009-07-08 | 株式会社岛精机制作所 | Filling knitting machine |
| CN101553608A (en) * | 2006-12-26 | 2009-10-07 | 株式会社岛精机制作所 | Method for selecting needle and weft knitting machine |
| CN101796234A (en) * | 2007-09-07 | 2010-08-04 | 株式会社岛精机制作所 | Weft knitting machine, and its feeding method |
| CN201665748U (en) * | 2010-04-09 | 2010-12-08 | 飞虎纺机有限公司 | Machine head motive power detector of three-system computerized flat knitter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5014524A (en) * | 1989-08-23 | 1991-05-14 | Adrian Smilovici | Flat bed knitting machine having plural carriages |
-
2011
- 2011-03-28 JP JP2011070466A patent/JP5813975B2/en active Active
-
2012
- 2012-03-28 CN CN201210087067.4A patent/CN102719995B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100297407B1 (en) * | 1997-10-02 | 2001-10-24 | 신태준 | Automatic knitting-width controlling device of flat knitting machine |
| EP0916759A2 (en) * | 1997-11-13 | 1999-05-19 | Tsudakoma Kogyo Kabushiki Kaisha | Controlling method and apparatus for a flat knitting machine |
| CN101479417A (en) * | 2006-06-27 | 2009-07-08 | 株式会社岛精机制作所 | Filling knitting machine |
| CN101553608A (en) * | 2006-12-26 | 2009-10-07 | 株式会社岛精机制作所 | Method for selecting needle and weft knitting machine |
| CN101796234A (en) * | 2007-09-07 | 2010-08-04 | 株式会社岛精机制作所 | Weft knitting machine, and its feeding method |
| CN201665748U (en) * | 2010-04-09 | 2010-12-08 | 飞虎纺机有限公司 | Machine head motive power detector of three-system computerized flat knitter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109743000A (en) * | 2018-12-18 | 2019-05-10 | 深圳市优必选科技有限公司 | Servo motor braking circuit, servo motor braking system and braking method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102719995B (en) | 2014-12-03 |
| JP5813975B2 (en) | 2015-11-17 |
| JP2012202013A (en) | 2012-10-22 |
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