CN102787441B - Method for controlling combined cam color changing base of computerized flat knitting machine - Google Patents
Method for controlling combined cam color changing base of computerized flat knitting machine Download PDFInfo
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- CN102787441B CN102787441B CN2012103191961A CN201210319196A CN102787441B CN 102787441 B CN102787441 B CN 102787441B CN 2012103191961 A CN2012103191961 A CN 2012103191961A CN 201210319196 A CN201210319196 A CN 201210319196A CN 102787441 B CN102787441 B CN 102787441B
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Abstract
The invention discloses a method for controlling a combined cam color changing base of a computerized flat knitting machine. According to the method, firstly whether a cam stays in the initial position or not is judged, the cam is restored if the cam does not stay in the initial position, and a driving element of a color changing mechanism drives the cam of the color changing mechanism to rotate according to a signal of a driving module of the color changing mechanism; then whether the rotation angle of the cam is accurate or not is judged, an alarm signal is sent by an alarm module and the driving element is locked if the angle is not accurate, whether a signal of continuous rotation exists or not is judged if the rotation angle of the cam is accurate, the steps of driving the cam to rotate and the subsequent detection are repeatedly carried out according to the rotation signal if the rotation signal exists, and the procedure is completed if no rotation signals exist. By adopting the control method, the accuracy of each rotation angle of the combined cam can be ensured, and the function of feeding back failure information is also available.
Description
Technical field
The present invention relates to a kind of control method, particularly a kind of control method of computer flat knitting machine compound cam formula color changing base.
Background technology
In the course of the work, the yarn of often using multiple color forms the tissue of fabric to computer flat knitting machine, and this just need to select different thread-carrier balladeur train (also claiming Wu Sizuo) by color changing device, and the yarn that drives in corresponding yarn mouth weaves various fabrics.
Existing color changing device generally all adopts electromagnet to coordinate the mode of lever pushing to realize its function, and lever is the seesaw type setting.When the electromagnet push rod stretches out, promote an end of lever, the other end of lever perk drive switching slide block moves upward, and does not select the thread-carrier balladeur train; When the electromagnet push rod was retracted, lever was inoperative, and the switching slide block moves downward under the effect of spring selects the thread-carrier balladeur train.
The upper end of above-mentioned thread-carrier balladeur train is groove shape low between the senior middle school of both sides, the switching slide block falls in the groove of thread-carrier balladeur train after moving downward, the switching slide block is blocked on the both sides of groove, the overline bridge drive switching slide block of computer flat knitting machine drives the thread-carrier balladeur train and slides when side-to-side movement, namely selected the thread-carrier balladeur train; After the switching slide block moved upward, it broke away from the groove of thread-carrier balladeur train upper end, and the switching slide block does not drive the thread-carrier balladeur train and slides when side-to-side movement, namely do not select the thread-carrier balladeur train.
No matter be domestic at present or the computer flat knitting machine of the external manufacturing generally all adopts above-mentioned principle, and its shortcoming is:
1, each electromagnet has the connection control line, and the magnetic field of adding electromagnet is larger, causes the interference of automatically controlled part larger, there will be head braiding motion not according to rule, random needle selection, spend the order problem such as make mistakes, affect automatically controlled stability and reliability;
2, electromagnet moment work impulsive force is large, easily damages switching frame and electromagnet self, and switching enables that frequency is high, and noise is large, and maintenance rate is high, replacing is inconvenient;
3, during single electromagnet cisco unity malfunction, can not determine as early as possible, also can't report to the police.
For this reason, we have developed a kind of color changing base that adopts cam to drive the switching slide block.The driving shaft of desirable state yes driving mechanism driving cam, thus with moving cam, rotate certain angle, make ledge or the sunk part work of cam, thereby select corresponding switching slide block.We are as can be known from above-mentioned, and the accuracy of angular displacement of the cam is very important, and it directly affects the correctness of selecting the switching slide block.For example, when adopting stepper motor as the power source of driving shaft, the rotational angle situation generation not in place that stepper motor can cause because destroy synchronous (step-out that namely usually claims) over reasons such as loads at the volley, can cause angular displacement of the cam incorrect this moment, and the correctness of switching slide block is selected in impact.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of control method of computer flat knitting machine compound cam formula color changing base, and this control method can be guaranteed the accuracy of color changing base selection switching slide block.
In order to solve above-mentioned technical problem, technical scheme of the present invention is: a kind of control method of computer flat knitting machine compound cam formula color changing base, this color changing base comprises a plurality of color replacing mechanisms, the cam that described color replacing mechanism comprises selecting the switching slide block of thread-carrier balladeur train and drives the switching slide block, described cam is arranged on driving shaft, on described driving shaft or cam, be provided with respectively and position sensor, induction point that state sensor is corresponding, described control method comprises the following steps:
(1) by position sensor, detect and judge that whether cam is at initial position;
(2) if cam, not at initial position, resets to cam, execution step (1); If cam, at initial position, performs step (3);
(3) the color replacing mechanism driving element drives the cam rotation of color replacing mechanism according to the signal of color replacing mechanism driver module, thereby selects corresponding thread-carrier balladeur train;
(4) the state sensor detection judges whether the angle of cam rotation is correct;
(5) if the angle that cam rotates is incorrect, by alarm module, send alarm signal lock drive element; If the angle that cam rotates correctly performs step (6);
(6) judge whether the signal of rotation, if having according to the signal that rotates, execution step (3)～(5); If the signal that does not have to rotate finishes.
Described state sensor is Hall element, on described driving shaft or cam, is provided with inductive magnetic steel, and described Hall element counts to detect by inductive magnetic steel the angle that cam rotates.
Described driving element is preferably stepper motor.
In order to save the limited space of color changing base, be conducive to cost-savingly, on described driving shaft, be provided with a plurality of cams.
Control method of the present invention can guarantee that each rotational angle of compound cam is accurate, improves the color changing base job stability, reduces the fault rate of computer flat knitting machine; It also has the function of feedback fault message simultaneously, makes producers in time find fault, so just reduces the defect rate of fabric, improves the quality of fabric.
The accompanying drawing explanation
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is computer flat knitting machine compound cam formula color changing base structural representation.
Fig. 2 is control method flow chart of the present invention.
The specific embodiment
As shown in Figure 1, computer flat knitting machine compound cam formula color changing base comprises a plurality of color replacing mechanisms, the cam that described color replacing mechanism comprises selecting the switching slide block of thread-carrier balladeur train and drives the switching slide block, described cam 1 is arranged on driving shaft 2, on described driving shaft 2 or cam 1, is provided with respectively and position sensor 3, induction point 5 that state sensor 4 is corresponding.
Described position sensor 3 detects the initial position signal of compound cam 1 in described color replacing mechanism.
Described state sensor 4 detects rotary state (the being angle) signal of compound cam 1 in described color replacing mechanism.Described state sensor 4 can be selected Hall element, on described driving shaft 2 or cam 1, be provided with inductive magnetic steel (being induction point 5), magnet steel is by the even angle setting, described Hall element is counted by inductive magnetic steel, and the angle that the numeral of counter multiply by the magnet steel distribution just can obtain the angle that cam 1 rotates.
The information exchange that position sensor 3, state sensor 4 gather is crossed signal acquisition module and is passed to master controller.
The preferred motor 6 of color replacing mechanism driving element, further preferred stepper motor.
And, we adopt a driving shaft 2 to drive a plurality of cams 1, for example adopt motor 6 to drive a plurality of cam 1(as driven four cams by motor shaft), need to carry out preferably the profile of cam 1 like this, so that phase mutually noninterfere between the switching slide block of selecting and unselected switching slide block.
Knitting program is input in master controller, desirable workflow is: master controller sends and drives instruction to the color replacing mechanism driver module, the color replacing mechanism driver module drives the motion of color replacing mechanism driving element according to driving instruction, thereby accurately rotates and select different thread-carrier balladeur trains to carry out braid movement with moving cam 1.
But above-mentioned flow process is only perfect condition, and usually there is deviation in the angle of rotating with moving cam 1, and this is the degree of accuracy of impact selection thread-carrier balladeur train just.The present invention solves this problem by following control method, and as shown in Figure 2, this control method comprises the following steps:
(1) master controller sends the driving instruction according to the setting of knitting program to the color replacing mechanism driver module, before driving, at first by position sensor 3, detect the initial position signal of color replacing mechanism cam 1, according to this signal, judge that whether cam 1 is at initial position, position sensor passes to master controller by signal acquisition module by this signal, by master controller, whether cam 1 is judged at the signal of initial position.
(2) if cam 1, not at initial position, resets to cam 1, execution step (1); If cam 1, at initial position, performs step (3).
(3) the color replacing mechanism driver module is connected with master controller, and described master controller sends and drives instruction to described color replacing mechanism driver module; The color replacing mechanism driving element is connected with the color replacing mechanism driver module, and described color replacing mechanism driving element rotates and selects different thread-carrier balladeur trains to carry out braid movement according to the cam 1 that drives the order-driven color replacing mechanism.
(4) whether correctly by state sensor, detect the angle that judges cam 1 rotation, be the rotary state signal that state sensor 4 detects color replacing mechanism cam 1, in order to judge, to prevent the rotational angle that causes such as reasons such as step out of stepping motors situation not in place, occur.
(5) if the angle that cam 1 rotates is incorrect, by alarm module, send alarm signal lock drive element; If the angle that cam 1 rotates correctly performs step (6); Certainly, above-mentionedly also this signal can be passed to computer flat knitting machine when sending alarm signal lock drive element, control the work of computer flat knitting machine complete machine.
(6) judge whether the signal of rotation, if having according to the signal that rotates, execution step (3)～(5); If the signal that does not have to rotate finishes.
The inventive method is controlled simple, and when driving element adopted stepper motor, only need send certain pulse to stepper motor can drive, and on hardware design, interface is few; Position sensor and state sensor can guarantee that each rotational angle of compound cam is accurate; The function that has simultaneously the feedback fault.
Above-described embodiment does not limit the present invention in any way, and every employing is equal to replaces or technical scheme that the mode of equivalent transformation obtains all drops in protection scope of the present invention.
Claims (4)
1. the control method of a computer flat knitting machine compound cam formula color changing base, this color changing base comprises a plurality of color replacing mechanisms, described color replacing mechanism comprises selecting the switching slide block of thread-carrier balladeur train, it is characterized in that: described color replacing mechanism also comprises the cam that drives the switching slide block, described cam is arranged on driving shaft, on described driving shaft or cam, be provided with respectively and position sensor, induction point that state sensor is corresponding, described control method comprises the following steps:
(1) by position sensor, detect and judge that whether cam is at initial position;
(2) if cam, not at initial position, resets to cam, execution step (1); If cam, at initial position, performs step (3);
(3) the color replacing mechanism driving element drives the cam rotation of color replacing mechanism according to the signal of color replacing mechanism driver module, thereby selects corresponding thread-carrier balladeur train;
(4) the state sensor detection judges whether the angle of cam rotation is correct;
(5) if the angle that cam rotates is incorrect, by alarm module, send alarm signal lock drive element; If the angle that cam rotates correctly performs step (6);
(6) judge whether the signal of rotation, if having according to the signal that rotates, execution step (3)～(5); If the signal that does not have to rotate finishes.
2. the control method of computer flat knitting machine compound cam formula color changing base according to claim 1, it is characterized in that: described state sensor is Hall element, on described driving shaft or cam, be provided with inductive magnetic steel, described Hall element counts to detect by inductive magnetic steel the angle that cam rotates.
3. the control method of computer flat knitting machine compound cam formula color changing base according to claim 1, it is characterized in that: described driving element is stepper motor.
4. the control method of computer flat knitting machine compound cam formula color changing base according to claim 3, is characterized in that: on described driving shaft, be provided with a plurality of cams.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103191961A CN102787441B (en) | 2012-08-31 | 2012-08-31 | Method for controlling combined cam color changing base of computerized flat knitting machine |
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| CN2012103191961A CN102787441B (en) | 2012-08-31 | 2012-08-31 | Method for controlling combined cam color changing base of computerized flat knitting machine |
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| CN102787441A CN102787441A (en) | 2012-11-21 |
| CN102787441B true CN102787441B (en) | 2013-11-20 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108823777A (en) * | 2018-09-21 | 2018-11-16 | 泉州市永祺塑胶电子有限公司 | Computer flat knitting machine yarn nozzle runs assembly |
| CN109765043B (en) * | 2019-01-28 | 2024-06-21 | 宁波星睿轩智能科技有限公司 | Color changing base detection equipment of computerized flat knitting machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4354363A (en) * | 1979-12-10 | 1982-10-19 | Shima Idea Center Co., Ltd. | Means for controlling the movement of yarn carriers along with a carriage in flat knitting machines |
| US4821534A (en) * | 1987-02-18 | 1989-04-18 | H. Stoll Gmbh & Co. | Apparatus for controlling the carriage drive motor of a flat bed knitting machine |
| EP0872587A2 (en) * | 1997-04-15 | 1998-10-21 | Shima Seiki Manufacturing, Ltd. | A yarn feeding system for a flat knitting machine |
| CN101067400A (en) * | 2007-04-20 | 2007-11-07 | 李红霆 | Engine camshaft rotating position signal disc |
| CN101670712A (en) * | 2008-09-08 | 2010-03-17 | 山东新北洋信息技术股份有限公司 | Device for detecting position of print head and printer provided with same |
| CN201842947U (en) * | 2010-08-18 | 2011-05-25 | 李宾 | Transmission device for triangular mechanism of full-computerized flat knitting machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2785268B2 (en) * | 1988-04-13 | 1998-08-13 | ブラザー工業株式会社 | Control device based on color scheme data for knitting machines |
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2012
- 2012-08-31 CN CN2012103191961A patent/CN102787441B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4354363A (en) * | 1979-12-10 | 1982-10-19 | Shima Idea Center Co., Ltd. | Means for controlling the movement of yarn carriers along with a carriage in flat knitting machines |
| US4821534A (en) * | 1987-02-18 | 1989-04-18 | H. Stoll Gmbh & Co. | Apparatus for controlling the carriage drive motor of a flat bed knitting machine |
| EP0872587A2 (en) * | 1997-04-15 | 1998-10-21 | Shima Seiki Manufacturing, Ltd. | A yarn feeding system for a flat knitting machine |
| CN101067400A (en) * | 2007-04-20 | 2007-11-07 | 李红霆 | Engine camshaft rotating position signal disc |
| CN101670712A (en) * | 2008-09-08 | 2010-03-17 | 山东新北洋信息技术股份有限公司 | Device for detecting position of print head and printer provided with same |
| CN201842947U (en) * | 2010-08-18 | 2011-05-25 | 李宾 | Transmission device for triangular mechanism of full-computerized flat knitting machine |
Non-Patent Citations (1)
| Title |
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| JP平1-266252A 1989.10.24 |
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