CN105648647B - Straight-bar machines and its machine head positioning method - Google Patents
Straight-bar machines and its machine head positioning method Download PDFInfo
- Publication number
- CN105648647B CN105648647B CN201610093951.7A CN201610093951A CN105648647B CN 105648647 B CN105648647 B CN 105648647B CN 201610093951 A CN201610093951 A CN 201610093951A CN 105648647 B CN105648647 B CN 105648647B
- Authority
- CN
- China
- Prior art keywords
- knitting needle
- head
- needle
- bar
- straight
- 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.)
- Active
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B7/00—Flat-bed knitting machines with independently-movable needles
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
- D04B15/68—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used
- D04B15/70—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used in flat-bed knitting machines
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
- D04B15/68—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used
- D04B15/78—Electrical devices
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
Abstract
The invention discloses a kind of machine head positioning method of straight-bar machines, the straight-bar machines include needle-bar, knitting needle sequence, head, knitting needle read head and and encoder, wherein in motion process of the head with respect to needle-bar, knitting needle read head recognizes knitting needle successively, and the output knitting needle detection pulse when recognizing knitting needle every time, encoder is used to carry out one-time positioning, and exports coding signal relative to the position of needle-bar to head, and this method includes：In the output knitting needle detection pulse of each knitting needle read head, the encoded signal according to encoder at current time judges the sequence number of current knitting needle that knitting needle read head recognized in knitting needle sequence；Secondary positioning is carried out according to sequence number and knitting needle detection pulse position to head relative to needle-bar of the current knitting needle in knitting needle sequence.The invention also discloses a kind of straight-bar machines.By the above-mentioned means, the present invention can be detected by the current knitting needle passed through to head and obtain real-time position information of the head relative to needle-bar more accurately and reliably to position.
Description
Technical field
The present invention relates to Knitting Machinery control technology field, more particularly to a kind of straight-bar machines and its machine head positioning method.
Background technology
Mostly traditional multistage needle selection type computer flat-knitting machine head positioning is realized using the encoder of main servo motor, but this
The mode of kind by repeatedly gap of the transmission of machinery and driving belt and gear etc. because generate larger error, it is impossible to
The accurate of unistage type needle selection is met timely to require.
For example, a kind of mode of prior art is the drawbacks of being and positioning, this mode are realized using encoded servo device
What encoded servo device reflected is the distance that motor shaft end is turned over.The retractility of the transmission mechanism such as motor belt and head belt with
And the gap (backhaul is poor) of transmission mechanism, cause the inaccurate of positioning.The another way of prior art is to use photoelectric coding
Device reads rack, a tooth piece pin of correspondence.But this mode requires high to assembly precision, and powder is easily produced using process
Dirt and tiny knitting wool block optical signal and cause locating bias, and the different machine of needle gage needs to arrange in pairs or groups different tooth pitches and the facewidth
Rack, is changed cumbersome.
Accordingly, it is desirable to provide a kind of straight-bar machines and its machine head positioning method, to solve the above problems.
The content of the invention
It is inaccurate to solve the positioning of prior art head the embodiments of the invention provide a kind of straight-bar machines and its machine head positioning method
True and machine head positioning method requires higher technical problem to equipment assembly precision.
In order to solve the above technical problems, one aspect of the present invention is：A kind of head positioning of straight-bar machines is provided
Method, the straight-bar machines includes needle-bar, is arranged on needle-bar and the knitting needle sequence including multiple knitting needles for being arranged in order, relative to needle-bar
The head of motion, the knitting needle read head being arranged on head and the encoder being servo-actuated with head, wherein in head with respect to needle-bar
In motion process, knitting needle read head recognizes knitting needle, and the output knitting needle detection pulse when recognizing knitting needle every time successively, and encoder is used
In carrying out one-time positioning, and exports coding signal relative to the position of needle-bar to head, this method includes：In each knitting needle read head
When exporting knitting needle detection pulse, the encoded signal according to encoder at current time judges the current knitting needle that knitting needle read head is recognized
Sequence number in knitting needle sequence；Detect pulse to head relative to pin according to sequence number of the current knitting needle in knitting needle sequence and knitting needle
The position of bed carries out secondary positioning.
Wherein, by by encoder in the encoded signal at the current time knitting needle different from prestoring and corresponding respectively to
Multiple a reference values be compared to judge the sequence number of current knitting needle that knitting needle read head recognized in knitting needle sequence.
Wherein, encoder continues exports coding pulse in the servomechanism process with head, passes through the volume exported to encoder
Code pulse is counted, and by encoder in the count value at the current time knitting needle different from prestoring and corresponding respectively to
Multiple reference count values are compared to judge the sequence number of current knitting needle that knitting needle read head recognized in knitting needle sequence.
Wherein, multiple reference count values are by the way that by head, knitting needle read head is defeated every time in the moving process relative to needle-bar
The count value of the coded pulse of encoder output is prestored and obtained when going out knitting needle detection pulse.
In order to solve the above technical problems, another technical solution used in the present invention is：A kind of straight-bar machines is provided, the straight-bar machines bag
Include：Needle-bar, be arranged on needle-bar and the knitting needle sequence including multiple knitting needles for being arranged in order, moved relative to needle-bar head,
The knitting needle read head being arranged on head, the encoder and processor that are servo-actuated with head, wherein in motion of the head with respect to needle-bar
During, knitting needle read head recognizes knitting needle, and the output knitting needle detection pulse when recognizing knitting needle every time successively, and encoder is to head
Position relative to needle-bar carries out one-time positioning, and exports coding signal, and processor is in the output knitting needle detection of each knitting needle read head
During pulse, the encoded signal according to encoder at current time judges current knitting needle that knitting needle read head recognized in knitting needle sequence
Sequence number, and detect that position of the pulse to head relative to needle-bar is entered according to sequence number of the current knitting needle in knitting needle sequence and knitting needle
The secondary positioning of row.
Wherein, straight-bar machines further comprises memory, and memory prestores the multiple bases for corresponding respectively to different knitting needles
Quasi- value, processor is compared to judge knitting needle read head by the encoded signal by encoder at current time with multiple a reference values
Sequence number of the current knitting needle recognized in knitting needle sequence.
Wherein, multiple a reference values are the multiple reference count values for corresponding respectively to different knitting needles, and straight-bar machines further comprises
Counter, encoder continues exports coding pulse, the coding arteries and veins that counter is exported to encoder in the servomechanism process with head
Capable counting is rushed in, count value of the processor by encoder at current time is compared to judge knitting needle with multiple reference count values
Sequence number of the current knitting needle that read head is recognized in knitting needle sequence.
Wherein, multiple reference count values are by the way that by head, knitting needle read head is defeated every time in the moving process relative to needle-bar
The count value for going out the coded pulse that knitting needle detection pulse hour counter is exported to encoder is stored in advance in memory and obtained
's.
Wherein, knitting needle read head is Hall sensor.
Wherein, encoder is driven by head.
By such scheme, the beneficial effects of the invention are as follows：The present invention is encoded by knitting needle read head and knitting needle sequence fit
Device is used, so that by carrying out one-time positioning and secondary positioning relative to the position of needle-bar to head, and then inspection can be caused
The head measured relative to needle-bar real-time position information more accurately and reliably.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.Wherein：
Fig. 1 is the flow chart of the machine head positioning method first embodiment of straight-bar machines of the present invention；
Fig. 2 is the flow chart of the machine head positioning method second embodiment of straight-bar machines of the present invention；
Fig. 3 is the flow chart of the machine head positioning method 3rd embodiment of straight-bar machines of the present invention；
Fig. 4 is the flow chart of the machine head positioning method fourth embodiment of straight-bar machines of the present invention；
Fig. 5 is the flow chart of the embodiment of machine head positioning method the 5th of straight-bar machines of the present invention；
Fig. 6 is the flow chart of the machine head positioning method sixth embodiment of straight-bar machines of the present invention；
Fig. 7 is the module diagram of the head alignment system preferred embodiment of straight-bar machines of the present invention；
Fig. 8 is the structural representation of straight-bar machines first embodiment of the present invention；
Fig. 9 is the flow chart of the embodiment of machine head positioning method the 7th of straight-bar machines of the present invention；
Figure 10 is the structural representation of straight-bar machines second embodiment of the present invention；
Figure 11 is that the head of straight-bar machines of the present invention hits the flow chart of detection method preferred embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this
Embodiment in invention, it is every other that those of ordinary skill in the art are obtained under the premise of performing creative labour is not made
Embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 1, Fig. 1 is the flow chart of the machine head positioning method first embodiment of straight-bar machines of the present invention.In the present embodiment
In, straight-bar machines includes executing agency, needle-bar and the head moved relative to needle-bar, and the machine head positioning method of straight-bar machines includes following step
Suddenly：
Step S11：Detect real-time position information of the head relative to needle-bar.
In step s 11, for example real-time position information of the head relative to needle-bar is detected using the position sensor of straight-bar machines.
Wherein, the position sensor is preferably disposed on head, and is arranged on the marker on needle-bar to determine head phase by detection
For the real-time position information of needle-bar.Particular location sensor can be magnetic grid structure described below or read pin structure,
But not limited to this.
Step S12：Change the working condition of executing agency according to real-time position information.
In step s 12, for example the work shape of executing agency is changed according to real-time position information using the controller of straight-bar machines
State, wherein executing agency can include roller mechanism, Qi Di mechanisms, Du Mu mechanisms, cam mechanism, frame head transmission mechanism and send yarn
At least one of mechanism or combination.Specifically refer to following description.
Referring to Fig. 2, Fig. 2 is the flow chart of the machine head positioning method second embodiment of straight-bar machines of the present invention.In the present embodiment
In, straight-bar machines includes needle-bar, the head moved relative to needle-bar and executing agency, and executing agency is preferably roller mechanism or plays bottom
Mechanism, the machine head positioning method of straight-bar machines comprises the following steps：
Step S21：Detect real-time position information of the head relative to needle-bar.
In the step s 21, for example real-time position information of the head relative to needle-bar is detected using the position sensor of straight-bar machines.
Step S22：Roller mechanism or Qi Di mechanisms are changed to the pieces of cloth of the current braiding of straight-bar machines according to real-time position information
Pulling force.
In step S22, for example, roller mechanism is changed according to real-time position information using the controller of straight-bar machines or play bottom machine
Pulling force of the structure to the pieces of cloth of the current braiding of straight-bar machines.For example, when head is located in effective woven extent of needle-bar and closer to needle-bar
Effective woven extent edge, roller mechanism or Qi Di mechanisms are bigger or smaller to the pulling force of the pieces of cloth of the current braiding of straight-bar machines.
Or, after head removes effective woven extent, control roller mechanism or Qi Di mechanisms stop roller or play bottom action or reduce
Pulling force and control roller mechanism or Qi Di mechanisms start roller or play bottom action or increase before head moves into effective woven extent
Pulling force.Real-time position information of the present embodiment according to the head detected relative to needle-bar changes roller mechanism or Qi Di mechanisms pair
The pulling force for the pieces of cloth that straight-bar machines currently weaves, wherein braiding can be caused in the position adjustment pulling force of effective woven extent according to head
The pieces of cloth density ratio gone out is more uniform consistent, and stops after head removes effective woven extent or reduce pulling force and enter in head
Start pulling force action during effective woven extent or increase pulling force can reduce the power consumption of straight-bar machines and reasonably utilize resource.
Referring to Fig. 3, Fig. 3 is the flow chart of the machine head positioning method 3rd embodiment of straight-bar machines of the present invention.In the present embodiment
In, straight-bar machines includes needle-bar, the head moved relative to needle-bar and executing agency, and executing agency is preferably Du Mu mechanisms, straight-bar machines
Machine head positioning method comprise the following steps：
Step S31：Detect real-time position information of the head relative to needle-bar.
In step S31, for example, detect real-time position information of the head relative to needle-bar using the position sensor of straight-bar machines.
Step S32：According to the degree mesh slide position in real-time position information degree of change mesh mechanism.
In step s 32, for example the degree mesh using the controller of straight-bar machines in real-time position information degree of change mesh mechanism
Slide position.For example, when head is located in effective woven extent of needle-bar and closer to effective woven extent edge of needle-bar, degree
The knitting needle that mesh mechanism is controlled eats that yarn depth is bigger or smaller, so that the pieces of cloth consistent in density knit out, lifting
The quality of the pieces of cloth knit out, specifically controls knitting needle to eat yarn depth bigger or smaller, depending on specific straight-bar machines type, because
This present embodiment is not limited this.Or, according to braiding of the real-time position information in the effective woven extent for participating in needle-bar
When the availability mesh sliding block of action is left after effective woven extent but head section is maintained in effective woven extent, control is effective
Degree mesh sliding block starts to perform the action for being moved to zero-bit from operating position, and preferably, availability mesh sliding block is moved completely in head
Go out before effective woven extent, the action that availability mesh sliding block is moved to zero-bit from operating position is completed, so that machine
Head is fully removed after effective woven extent, and availability mesh sliding block is moved into zero-bit, and then can avoid woven
Yarn is torn or the pieces of cloth of non-effective woven extent are braided and produce broken hole, it is to avoid the generation of fabric waste paper.Further,
According to real-time position information the braid movement being not involved in effective woven extent of the current line of needle-bar idle degree mesh sliding block
Leave after effective woven extent and before head commutation, control free time degree mesh sliding block, which completes to perform from zero-bit, is moved to zero-bit and work
The action in the precalculated position between position, and further head commutation after and free time degree mesh sliding block is moved to the effective of next line
Control free time degree mesh sliding block to complete to be moved to the action of operating position from precalculated position before woven extent, and then enable to head
After commutation and free time degree mesh sliding block enter next line effective woven extent before, idle degree mesh sliding block is moved to and set in advance
The fixed corresponding operating position of degree mesh value is moved to the close position in operating position, so that free time degree mesh sliding block exists
Operating position corresponding with default degree mesh value, Jin Erneng can be reached when in into effective woven extent of next line faster
The run duration of head is enough reduced, so as to lift cross machine knitting efficiency.
Referring to Fig. 4, Fig. 4 is the flow chart of the machine head positioning method fourth embodiment of straight-bar machines of the present invention.In the present embodiment
In, straight-bar machines includes needle-bar, the head moved relative to needle-bar and executing agency, and executing agency is preferably frame head transmission mechanism,
The machine head positioning method of straight-bar machines comprises the following steps：
Step S41：Detect real-time position information of the head relative to needle-bar.
In step S41, for example, detect real-time position information of the head relative to needle-bar using the position sensor of straight-bar machines.
Step S42：Transmission speed of the frame head transmission mechanism to head is changed according to real-time position information.
In step S41, for example, frame head transmission mechanism is changed to machine according to real-time position information using the controller of straight-bar machines
The transmission speed of head.For example, head is closer to effective woven extent edge, the speed of frame head transmission mechanism head motion it is bigger or
Person is smaller.Or, when effective unit of the braid movement in the effective woven extent for participating in needle-bar is (for example, availability mesh is slided
Block, cam block or effective system head) leave after effective woven extent but when head section is maintained in effective woven extent,
Head is controlled to perform commutation action.
Referring to Fig. 5, Fig. 5 is the flow chart of the embodiment of machine head positioning method the 5th of straight-bar machines of the present invention.In the present embodiment
In, straight-bar machines includes needle-bar, the head moved relative to needle-bar and executing agency, and executing agency is preferably cam mechanism, straight-bar machines
Machine head positioning method comprise the following steps：
Step S51：Detect real-time position information of the head relative to needle-bar.
In step s 51, for example real-time position information of the head relative to needle-bar is detected using the position sensor of straight-bar machines.
Step S52：Change the position of the cam block of cam mechanism according to real-time position information.
In step S52, the triangle for for example changing cam mechanism according to real-time position information using the controller of straight-bar machines is slided
The position of block.For example, effective triangle of the braid movement according to real-time position information in the effective woven extent for participating in needle-bar
When sliding block is left after effective woven extent but head section is maintained in effective woven extent, effective cam block is controlled to start to hold
Row is moved to the action of zero-bit from operating position.Effective cam block is completed before head is fully removed effective woven extent
Effective cam block is moved to the action of zero-bit from operating position so that head be fully removed effective woven extent it
Afterwards, effective cam block is moved into zero-bit, and then woven yarn can be avoided to be torn or non-effective braiding
The pieces of cloth in region are braided and produce broken hole, it is to avoid the generation of fabric waste paper.Or, pin is being not involved according to real-time position information
The idle cam block of braid movement in effective woven extent of the current line of bed leaves after effective woven extent and head is changed
Forward, idle cam block is controlled to complete to perform the action in the precalculated position being moved between zero-bit and operating position from zero-bit,
And further after head commutation and idle cam block is moved to before effective woven extent of next line and controls idle cam block
Completion is moved to the action of operating position from precalculated position, and then enables to after head commutation and under idle cam block entrance
Before effective woven extent of a line, idle cam block is moved to operating position or is moved to operating position in advance and is leaned on
Near position, so that idle cam block can reach work faster when entering in effective woven extent of next line
Position, and then the run duration of head can be reduced, so as to lift cross machine knitting efficiency.Further, it is also possible to according to head
Real-time position information, the action of different zones of the control cam mechanism in effective woven extent, and then make cam mechanism exist
Needle track defined in different zones in effective woven extent is different.
Referring to Fig. 6, Fig. 6 is the flow chart of the machine head positioning method sixth embodiment of straight-bar machines of the present invention.In the present embodiment
In, straight-bar machines includes needle-bar, the head moved relative to needle-bar and executing agency, and executing agency is preferably Yarn-feeding mechanism, straight-bar machines
Machine head positioning method comprise the following steps：
Step S61：Detect real-time position information of the head relative to needle-bar.
In step S61, for example, detect real-time position information of the head relative to needle-bar using the position sensor of straight-bar machines.
Step S62：Change the tension force for the yarn that Yarn-feeding mechanism is controlled according to real-time position information.
In step S62, for example, change what Yarn-feeding mechanism was controlled according to real-time position information using the controller of straight-bar machines
The tension force of yarn.For example, head is closer to effective woven extent edge, the tension force for the yarn that Yarn-feeding mechanism is controlled it is bigger or
Smaller, after head removes effective woven extent, control Yarn-feeding mechanism stops sending yarn to act or reduce tension force and move into head
Control Yarn-feeding mechanism starts to send yarn to act or increase tension force before effective woven extent, so as to do not need yarn tension when
Wait, stopping send yarn to act or reduces tension force, and then can reduce power consumption, reasonable distribution resource.
It is worth noting that, the first of the machine head positioning method of above-mentioned straight-bar machines several any realities into sixth embodiment
Applying example can be mutually combined to form new embodiment, i.e., can root after detection real-time position information of the head relative to needle-bar
According to real-time position information control, two or more different types of executing agencies perform corresponding action, coordinate and realize accurate volume
Knit task.
Referring to Fig. 7, Fig. 7 is the module diagram of the head alignment system preferred embodiment of straight-bar machines of the present invention.In this reality
Apply in example, straight-bar machines includes needle-bar, the head moved relative to needle-bar and executing agency, the head alignment system of straight-bar machines includes：
Position sensor 11 and controller 12, the position sensor 11 are used to detect real-time position information of the head relative to needle-bar.Should
Controller 12 changes the working condition of executing agency according to real-time position information, and wherein executing agency includes roller mechanism, plays bottom
At least one of mechanism, Du Mu mechanisms, cam mechanism, frame head transmission mechanism and Yarn-feeding mechanism or combination.
If executing agency is roller mechanism or Qi Di mechanisms, controller changes roller mechanism according to real-time position information or risen
Pulling force of the bottom mechanism to the pieces of cloth of the current braiding of straight-bar machines.For example, when head be located at needle-bar effective woven extent in and closer to
Effective woven extent edge of needle-bar, roller mechanism or Qi Di mechanisms are bigger to the pulling force of the pieces of cloth of the current braiding of straight-bar machines or more
Small, after head removes effective woven extent, control roller mechanism or Qi Di mechanisms stop roller or play bottom action or reduce to draw
Power and control roller mechanism or Qi Di mechanisms start roller or play bottom action or increase is drawn before head moves into effective woven extent
Power.
If executing agency is Du Mu mechanisms, degree mesh sliding block position of the controller in real-time position information degree of change mesh mechanism
Put.For example, when head is located in effective woven extent of needle-bar and closer to effective woven extent edge of needle-bar, Du Mu mechanisms
It is bigger or smaller that the knitting needle controlled eats yarn depth.According to volume of the real-time position information in the effective woven extent for participating in needle-bar
The availability mesh sliding block for knitting action is left after effective woven extent but when head section is maintained in effective woven extent, and control has
Validity mesh sliding block starts to perform the action for being moved to zero-bit from operating position.Or, pin is being not involved according to real-time position information
The idle degree mesh sliding block of braid movement in effective woven extent of the current line of bed leaves after effective woven extent and head is changed
Forward, control free time degree mesh sliding block completes to perform the action in the precalculated position being moved between zero-bit and operating position from zero-bit,
And further after head commutation and free time degree mesh sliding block is moved to control free time degree mesh cunning before effective woven extent of next line
Block completes to be moved to the action of operating position from precalculated position.
If executing agency is frame head transmission mechanism, controller changes frame head transmission mechanism to head according to real-time position information
Transmission speed.For example, when head closer to effective woven extent edge, the speed of frame head transmission mechanism head motion it is bigger or
Person is smaller.
If executing agency is cam mechanism, controller changes the position of the cam block of cam mechanism according to real-time position information
Put.For example, the different zones in effective woven extent, needle track defined in cam mechanism is different, or, according to real time position
Effective cam block of braid movement of the information in the effective woven extent for participating in needle-bar is left after effective woven extent but machine
When head point is maintained in effective woven extent, controls effective cam block to start execution and be moved to the dynamic of zero-bit from operating position
Make, or, according to real-time position information the braid movement being not involved in effective woven extent of the current line of needle-bar free time
Cam block is left after effective woven extent and before head commutation, and the idle cam block of control completes to perform is moved to zero from zero-bit
The action in the precalculated position between position and operating position, and further after head commutation and idle cam block is moved to next line
Effective woven extent before control idle cam block to complete to be moved to the action of operating position from precalculated position.
If executing agency is Yarn-feeding mechanism, controller changes the yarn that Yarn-feeding mechanism is controlled according to real-time position information
Tension force.Preferably, when head is closer to effective woven extent edge, the tension force for the yarn that Yarn-feeding mechanism is controlled is bigger or more
It is small.Further, after head removes effective woven extent, control Yarn-feeding mechanism stops sending yarn to act or reduce tension force and in head
Move into before effective woven extent and control Yarn-feeding mechanism to start to send yarn to act or increase tension force.
A kind of embodiment of straight-bar machines is further provided for according to the head alignment system preferred embodiment of straight-bar machines of the present invention.It please join
Fig. 8 is read, Fig. 8 is the structural representation of straight-bar machines first embodiment of the present invention.In the present embodiment, straight-bar machines includes needle-bar 20, magnetic grid
Read head 211 and magnetic railings ruler 201, controller (not shown), executing agency's (not shown) and the head moved relative to needle-bar 20
21。
Wherein, magnetic grid read head 211 and the composition position sensor of magnetic railings ruler 201.Magnetic railings ruler 201 is arranged on needle-bar 20, magnetic
Grid read head 211 is arranged on head 21, and magnetic railings ruler 201 is read out.Controller is according to the reading signal of magnetic grid read head 211
Determine real-time position information of the head 21 relative to needle-bar 20.
Preferably, controller changes the working condition of executing agency according to real-time position information, and wherein executing agency includes
At least one of roller mechanism, Qi Di mechanisms, Du Mu mechanisms, cam mechanism, frame head transmission mechanism and Yarn-feeding mechanism or combination.
If executing agency is roller mechanism or Qi Di mechanisms, controller changes roller mechanism according to real-time position information or risen
Pulling force of the bottom mechanism to the pieces of cloth of the current braiding of straight-bar machines.For example, when head be located at needle-bar effective woven extent in and closer to
Effective woven extent edge of needle-bar, roller mechanism or Qi Di mechanisms are bigger to the pulling force of the pieces of cloth of the current braiding of straight-bar machines or more
Small, after head removes effective woven extent, control roller mechanism or Qi Di mechanisms stop roller or play bottom action or reduce to draw
Power and control roller mechanism or Qi Di mechanisms start roller or play bottom action or increase is drawn before head moves into effective woven extent
Power.
If executing agency is Du Mu mechanisms, degree mesh sliding block position of the controller in real-time position information degree of change mesh mechanism
Put.For example, when head is located in effective woven extent of needle-bar and closer to effective woven extent edge of needle-bar, Du Mu mechanisms
The knitting needle controlled eat yarn depth it is bigger either smaller or, according to real-time position information participate in needle-bar effective knitting zone
The availability mesh sliding block of braid movement in domain leaves after effective woven extent but head section is maintained in effective woven extent
When, control availability mesh sliding block starts to perform the action for being moved to zero-bit from operating position.Do not joined according to real-time position information
Left with the idle degree mesh sliding block of the braid movement in effective woven extent of the current line of needle-bar after effective woven extent and machine
Before head commutation, control free time degree mesh sliding block completes the dynamic of the precalculated position that execution is moved between zero-bit and operating position from zero-bit
Make, and further after head commutation and free time degree mesh sliding block is moved to control free time degree mesh before effective woven extent of next line
Sliding block completes to be moved to the action of operating position from precalculated position.
If executing agency is frame head transmission mechanism, controller changes frame head transmission mechanism to head according to real-time position information
Transmission speed.For example, in head closer to effective woven extent edge, the speed of frame head transmission mechanism head motion it is bigger or
Person is smaller.
If executing agency is cam mechanism, controller changes the position of the cam block of cam mechanism according to real-time position information
Put.For example, the different zones in effective woven extent, needle track defined in cam mechanism is different, or, according to real time position
Effective cam block of braid movement of the information in the effective woven extent for participating in needle-bar is left after effective woven extent but machine
When head point is maintained in effective woven extent, controls effective cam block to start execution and be moved to the dynamic of zero-bit from operating position
Make, or, according to real-time position information the braid movement being not involved in effective woven extent of the current line of needle-bar free time
Cam block is left after effective woven extent and before head commutation, and the idle cam block of control completes to perform is moved to zero from zero-bit
The action in the precalculated position between position and operating position, and further after head commutation and idle cam block is moved to next line
Effective woven extent before control idle cam block to complete to be moved to the action of operating position from precalculated position.
If executing agency is Yarn-feeding mechanism, controller changes the yarn that Yarn-feeding mechanism is controlled according to real-time position information
Tension force.For example, in head closer to effective woven extent edge, the tension force for the yarn that Yarn-feeding mechanism is controlled is bigger or more
It is small, or, after head removes effective woven extent, control Yarn-feeding mechanism stops sending yarn to act or reduce tension force and move in head
Enter to control Yarn-feeding mechanism to start to send yarn to act or increase tension force before effective woven extent.
Also referring to Fig. 9 and Figure 10, Fig. 9 is the flow chart of the embodiment of machine head positioning method the 7th of straight-bar machines of the present invention,
Figure 10 is the structural representation of the second embodiment of straight-bar machines of the present invention.In the present embodiment, straight-bar machines includes needle-bar 30, knitting needle sequence
31st, (figure is not for head 32, knitting needle read head 321, encoder 33, processor (not shown), counter (not shown) and memory
Show), knitting needle sequence 31 is arranged on needle-bar 30 and multiple knitting needles 311,312,313 including being arranged in order, head 32 relative to
Needle-bar 30 is moved, and knitting needle read head 321 is arranged on head 32, and encoder 33 is servo-actuated with head 32, wherein in head 32 with respect to pin
In the motion process of bed 30, knitting needle read head 321 recognizes knitting needle 311,312,313 successively, and is recognizing knitting needle 311,312 every time
Or knitting needle detection pulse is exported when 313, encoder 33 is used to carry out one-time positioning relative to the position of needle-bar 30 to head 32, and
Exports coding signal, it is preferable that knitting needle read head 321 is Hall sensor 321, encoder 33 is driven by head 32.Straight-bar machines
Machine head positioning method comprise the following steps：
Step S71：In the output knitting needle detection pulse of each knitting needle read head, the coding according to encoder at current time is believed
Sequence number of the current knitting needle that number judgement knitting needle read head is recognized in knitting needle sequence.
In step S71, for example, using the processor of straight-bar machines in the output knitting needle detection pulse of each knitting needle read head 321,
Encoded signal according to encoder 33 at current time judges current knitting needle that knitting needle read head 321 recognized in knitting needle sequence 31
Sequence number.Preferably, processor by by encoder 33 current time encoded signal with prestoring and corresponding respectively to
Multiple a reference values of different knitting needles are compared to judge current knitting needle that knitting needle read head 321 recognized 31 in knitting needle sequence
Sequence number.Encoder 33 is with continuing exports coding pulse in the servomechanism process of head 32, memory is prestored to be corresponded to respectively
In multiple a reference values of different knitting needles.By being counted to the coded pulse that encoder 33 is exported, and encoder 33 is existed
Multiple reference count values of the count value at the current time knitting needle different from prestoring and corresponding respectively to are compared to sentence
Sequence number of the current knitting needle that disconnected knitting needle read head 321 is recognized in knitting needle sequence.Counter is used for the volume exported to encoder 33
Code pulse is counted.Preferably, multiple reference count values are by the way that head 32 is knitted in the moving process relative to needle-bar
The count value for the coded pulse that encoder 33 is exported is prestored and obtained when pin read head 321 exports knitting needle detection pulse every time
.The count value is stored in advance in memory.
Step S72：Detect pulse to head relative to needle-bar according to sequence number of the current knitting needle in knitting needle sequence and knitting needle
Position carry out secondary positioning.
In step S72, for example, using the processor of straight-bar machines according to sequence number of the current knitting needle in knitting needle sequence and knitting needle
Detect that position of the pulse to head 32 relative to needle-bar 30 carries out secondary positioning.In the present embodiment, to head 32 relative to pin
The position of bed 30 carries out secondary positioning and obtains real-time position information of the head 32 relative to needle-bar 30, therefore above-described embodiment
Middle step S11, step S21, step S31, step S41, step S51, step S61 may particularly include the step in the present embodiment
S71 and S72, obtains real-time position information of the head 32 relative to needle-bar 30, that is to say, that the head of above-mentioned straight-bar machines so as to realize
The preferred embodiment Position Sensor of alignment system can be by 31 groups of encoder 33, knitting needle read head 321 and knitting needle sequence
Into encoder 33 and knitting needle read head 321 and knitting needle sequence 31, which are used cooperatively, realizes that position sensor 11 is used to detect head phase
For the function of the real-time position information of needle-bar.
In the present embodiment, for being driven individually with encoder 33 when 32 position of head is detected due to belt etc.
The loosening of mechanism may cause the real-time position information for the head 32 that encoder detects inaccurate, using knitting needle read head 321 and knitting
The matching coding device 33 of pin sequence 31 is used, so as to carry out one-time positioning and two by the position to head 32 relative to needle-bar 30
Secondary positioning, so can to detect obtained head 32 relative to needle-bar 30 real-time position information more accurately and reliably.
Figure 11 is referred to, Figure 11 is that the head of straight-bar machines of the present invention hits the flow chart of detection method preferred embodiment.It please tie
Close and refer to Figure 10 and Figure 11, in the present embodiment, straight-bar machines includes encoder 33, processor, needle-bar 30, is arranged on needle-bar 30
Mark 31, the head 32 moved relative to needle-bar 30, the sensor 321 being arranged on head 32.The head of straight-bar machines hits inspection
Survey method comprises the following steps：
Step S81：Mark is read using sensor in motion process of the head relative to needle-bar, and then obtains head
Relative to the real-time position information of needle-bar.
In step S81, for example, being utilized using the processor of straight-bar machines in motion process of the head 32 relative to needle-bar 30
Sensor 321 reads mark 31, and then obtains real-time position information of the head 32 relative to needle-bar 30.Preferably, in this reality
Apply in example, mark 31 is to be arranged on needle-bar 30 and including the knitting needle sequence for the multiple knitting needles 311,312,313 being arranged in order
31, corresponding sensor 321 is preferably the knitting needle read head 321 being arranged on head 32.In motion of the head 32 with respect to needle-bar 30
During, knitting needle read head 321 recognizes knitting needle, and the detection pulse of output knitting needle, encoder 33 when recognizing knitting needle every time successively
For carrying out one-time positioning, and exports coding signal relative to the position of needle-bar 30 to head 32, in the present embodiment, in head
32 relative in the motion process of needle-bar 30 using sensor 321 read mark 31, and then obtain head 32 relative to needle-bar
The step of 30 real-time position information, preferably comprises：In the output knitting needle detection pulse of each knitting needle read head 321, according to coding
Encoded signal of the device 33 at current time judges the sequence number of current knitting needle that knitting needle read head 321 recognized in knitting needle sequence；Root
Head 32 is carried out relative to the position of needle-bar 30 according to sequence number of the current knitting needle in knitting needle sequence and knitting needle detection pulse secondary
Positioning, and then head 32 is obtained relative to the real-time position information of needle-bar 30, specifically refer to the head of the invention described above straight-bar machines
Step S71 and step S72 description and explanation in the embodiment of localization method the 7th.Certainly in other embodiments, please join again
Fig. 8 is read, sensor can also be magnetic grid read head 211, and correspondingly, mark can also be magnetic railings ruler 201, and magnetic railings ruler 201 is set
In on needle-bar 20, magnetic grid read head 211 is arranged on head 21, and magnetic railings ruler 201 is read out.Controller is according to magnetic grid read head
211 reading signal determines real-time position information of the head 21 relative to needle-bar 20, specifically refers to straight-bar machines first of the present invention real
Apply the description of example.
Step S82：Velocity variable of the head relative to needle-bar is calculated according to real-time position information.
In step S82, for example, head 32 is calculated relative to needle-bar according to real-time position information using the processor of straight-bar machines
30 velocity variable, for example, can accelerate with head 32 in the unit of account time relative to the velocity variable of needle-bar 30
Degree.
Step S83：If velocity variable exceedes predetermined threshold value, alarm signal is sent.
In step S83, for example, exceed predetermined threshold value in velocity variable using the processor of straight-bar machines, then send alarm signal
Number, the acceleration for example obtained according to calculating is compared with predetermined threshold value, and head 32 is can interpolate that if predetermined threshold value is exceeded
It is that alarm signal is collided and sent with knitting needle or other objects.Preferably, needle-bar 30 is divided into multiple regions, and worked as
When head 32 is in the presumptive area in multiple regions, velocity variable exceedes predetermined threshold value, sends alarm signal, works as head
32 be in presumptive area beyond other regions in when, velocity variable exceed predetermined threshold value, do not send alarm signal.It is preferred that
Ground, presumptive area is the effective woven extent of current line of needle-bar 30.
The present embodiment can calculate by accurately detecting the position of head and obtain handpiece speed variable quantity and become in speed
When change amount exceedes predetermined threshold value, alarm signal is sent, so as to whether accurately detect the executive component on head or head
Collided with other objects.
Prior art is different from, the present invention is used by knitting needle read head and knitting needle sequence fit encoder, so that by right
Head carries out one-time positioning and secondary positioning relative to the position of needle-bar, so can to detect obtained head relative to
The real-time position information of needle-bar is more accurately and reliably.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of machine head positioning method of straight-bar machines, it is characterised in that the straight-bar machines includes needle-bar, is arranged on the needle-bar and wraps
Include the multiple knitting needles being arranged in order knitting needle sequence, relative to the needle-bar move head, be arranged on knitting on the head
Pin read head and the encoder being servo-actuated with the head, wherein in the motion process of the relatively described needle-bar of the head, it is described
Knitting needle read head recognizes the knitting needle, and the detection pulse of output knitting needle, the encoder when recognizing the knitting needle every time successively
For carrying out one-time positioning, and exports coding signal relative to the position of the needle-bar to the head, methods described includes：
When the knitting needle read head every time exports the knitting needle detection pulse, the coding according to the encoder at current time is believed
Number judge the sequence number of current knitting needle that the knitting needle read head recognized in the knitting needle sequence；
According to sequence number of the current knitting needle in the knitting needle sequence and knitting needle detection pulse to the head relative to
The position of the needle-bar carries out secondary positioning.
2. according to the method described in claim 1, it is characterised in that by by the encoder current time encoded signal
Multiple a reference values of the knitting needle different from prestoring and corresponding respectively to are compared to judge the knitting needle read head institute
Sequence number of the current knitting needle of identification in the knitting needle sequence.
3. according to the method described in claim 1, it is characterised in that the encoder in the servomechanism process of the head with holding
Continuous exports coding pulse, by being counted to the coded pulse that the encoder is exported, and by the encoder when current
Multiple reference count values of the count value at the quarter knitting needle different from prestoring and corresponding respectively to are compared to judge
Sequence number of the current knitting needle that the knitting needle read head is recognized in the knitting needle sequence.
4. method according to claim 3, it is characterised in that the multiple reference count value is by the way that the head is existed
The encoder is defeated when knitting needle read head described in moving process relative to the needle-bar exports the knitting needle detection pulse every time
The count value of the coded pulse gone out is prestored and obtained.
5. a kind of straight-bar machines, it is characterised in that the straight-bar machines includes：Needle-bar, it is arranged on the needle-bar and including being arranged in order
The knitting needle sequence of multiple knitting needles, relative to the needle-bar move head, be arranged on the head knitting needle read head, with it is described
Head servo-actuated encoder and processor, wherein in the motion process of the relatively described needle-bar of the head, the knitting needle is read
Head recognizes the knitting needle successively, and exports knitting needle detection pulse when recognizing the knitting needle every time, and the encoder is to described
Head carries out one-time positioning, and exports coding signal relative to the position of the needle-bar, and the processor is in each knitting needle
When read head exports the knitting needle detection pulse, the encoded signal according to the encoder at current time judges the knitting needle read head
Sequence number of the current knitting needle recognized in the knitting needle sequence, and the sequence according to the current knitting needle in the knitting needle sequence
Number and the knitting needle detect that position of the pulse to the head relative to the needle-bar carries out secondary positioning.
6. straight-bar machines according to claim 5, it is characterised in that the straight-bar machines further comprises memory, the memory
Prestore the multiple a reference values for corresponding respectively to the different knitting needles, the processor by by the encoder current
The encoded signal at moment and the multiple a reference value are compared to judge current knitting needle that the knitting needle read head recognized in institute
State the sequence number in knitting needle sequence.
7. straight-bar machines according to claim 6, it is characterised in that the multiple a reference value be correspond respectively to it is different described
Multiple reference count values of knitting needle, the straight-bar machines further comprises counter, and the encoder was servo-actuated with the head
Continue exports coding pulse in journey, the coded pulse that the counter is exported to the encoder is counted, the processor
Count value by the encoder at current time is compared to judge the knitting needle read head with the multiple reference count value
Sequence number of the current knitting needle recognized in the knitting needle sequence.
8. straight-bar machines according to claim 7, it is characterised in that the multiple reference count value is by the way that the head is existed
The counter pair when knitting needle read head described in moving process relative to the needle-bar exports the knitting needle detection pulse every time
What the count value of the coded pulse of encoder output was stored in advance in the memory and obtained.
9. straight-bar machines according to claim 5, it is characterised in that the knitting needle read head is Hall sensor.
10. straight-bar machines according to claim 5, it is characterised in that the encoder is driven by the head.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511026643 | 2015-12-31 | ||
| CN2015110266434 | 2015-12-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105648647A CN105648647A (en) | 2016-06-08 |
| CN105648647B true CN105648647B (en) | 2017-10-10 |
Family
ID=56488603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610093951.7A Active CN105648647B (en) | 2015-12-31 | 2016-02-19 | Straight-bar machines and its machine head positioning method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105648647B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106774006B (en) * | 2017-01-22 | 2023-12-29 | 成都图灵创想科技有限责任公司 | Device and method for detecting firing pin of computerized flat knitting machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202273062U (en) * | 2011-08-01 | 2012-06-13 | 鲁文杰 | Control system of computerized flat knitting machine |
| CN202382934U (en) * | 2011-12-23 | 2012-08-15 | 浙江恒强科技股份有限公司 | Testing system for nose of flat knitting machine |
| JP5881412B2 (en) * | 2011-12-27 | 2016-03-09 | 株式会社島精機製作所 | Method and apparatus for generating knitting data for flat knitting machines |
| JP5955180B2 (en) * | 2012-09-24 | 2016-07-20 | 株式会社島精機製作所 | Flat knitting machine with stitch presser and control method thereof |
| JP6108882B2 (en) * | 2013-03-05 | 2017-04-05 | 株式会社島精機製作所 | Knitting method with flat knitting machine and flat knitting machine |
| CN203465564U (en) * | 2013-10-07 | 2014-03-05 | 揭阳市南星机械有限公司 | Computer flat-machine shaking-table control system and shaking-table-motor special-purpose coder thereof |
| CN203866498U (en) * | 2014-05-05 | 2014-10-08 | 浙江恒强科技股份有限公司 | Yarn carrier work detecting and warning device of flat knitting machine |
-
2016
- 2016-02-19 CN CN201610093951.7A patent/CN105648647B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105648647A (en) | 2016-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB835270A (en) | Improvements in or relating to knitting processes and knitting machines | |
| CN102051758B (en) | Sock machine control system capable of knitting heels at any positions of socks and control method thereof | |
| CN105648647B (en) | Straight-bar machines and its machine head positioning method | |
| CN103064339A (en) | Multi-dimension dynamic synergic movement control method of high-speed intelligent prototype | |
| CN107780074A (en) | The control method and device of high-speed chain-type embroidery machine | |
| CN206232928U (en) | A kind of knitting stereo weaving mechanism driven based on single needle | |
| CN101314889A (en) | Yarn length monitoring apparatus for flat machine | |
| CN203256436U (en) | Single-system computerized flat knitting machine capable of knitting and doubling stitching in same line | |
| CN202170409U (en) | Few-guide bar electronic transverse displacement device | |
| CN204215214U (en) | A kind of Fieldbus Based control system of embroidering machine | |
| CN203938867U (en) | Thick line control system of embroidering machine | |
| CN105511384A (en) | Embroidery machine control system based on on-site bus | |
| CN204199022U (en) | A kind of clothes bull embroidering machine | |
| CN203866494U (en) | Control system of flat knitting machine self-operating yarn carriers | |
| Meng et al. | Research on the influence that stop position of cerpet tufting machineto yarn tension and the method of elimination stop mark | |
| CN211498009U (en) | Hosiery knitter | |
| CN108179535B (en) | Computerized flat knitting machine, knitting method thereof and device with storage function | |
| CN202023041U (en) | Full automatic loop transfer rib machine | |
| CN102799140A (en) | Flat knitting machine control system | |
| JP3091968B2 (en) | Control device for flat knitting machine | |
| CN114606637B (en) | Method, device, equipment and storage medium for controlling cross loom | |
| CN203683834U (en) | Needle cylinder transmission part of numerically-controlled glove knitting machine | |
| CN203683832U (en) | Shear transmission part of numerically-controlled glove knitting machine | |
| CN203683846U (en) | Fork knife transmission component of numerical control glove knitting machine | |
| CN202809165U (en) | Circled triangular seat of flat knitting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |