CN101713130A - Seamer - Google Patents
Seamer Download PDFInfo
- Publication number
- CN101713130A CN101713130A CN200910180121A CN200910180121A CN101713130A CN 101713130 A CN101713130 A CN 101713130A CN 200910180121 A CN200910180121 A CN 200910180121A CN 200910180121 A CN200910180121 A CN 200910180121A CN 101713130 A CN101713130 A CN 101713130A
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- China
- Prior art keywords
- aforementioned
- cloth
- cloth pressing
- presser foot
- pressing
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B39/00—Workpiece carriers
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/02—Presser-control devices
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B35/00—Work-feeding or -handling elements not otherwise provided for
Abstract
The invention provides a seamer, which is irrelevant with cloth thickness, and can improve press cloth at stable pressure to avoid damage. The seamer is provided with the following components: a position control unit, which transmits command signal to an electric motor when cloth clamp lowers, and controls drive of the clamp electric motor based on feedback of position of cloth clamp that detected by a detect unit; a pressure control unit, which lowers cloth clamp slowly and reduces pressures to the sewed object by making drive current to the clamp electric motor smaller than usual current; a storage unit, which stores switch position of cloth clamp when shifts from position control unit to pressure control unit; and a switch control unit, which shifts lower control of the cloth clamp from position control unit to pressure control unit when the cloth clamp is lowered to the switch position stored in the storage unit.
Description
Technical field
The present invention relates to a kind of Sewing machines with the cloth pressing mechanism that liftably controls by actuator.
Background technology
Known a kind of Sewing machines with cloth pressing, this cloth pressing are set to and can carry out lifting by the driving of stepping motor, descend by this cloth pressing and push the cloth (sewn object) (for example, with reference to patent documentation 1) that is positioned on the needle plate.
When utilizing cloth pressing mechanism to push cloth, on the tram that cloth is arranged on the needle plate after, cloth pressing is descended.In that being descended, pushes under the situation of cloth cloth pressing, because mounting fabric thickness the unknown on needle plate, so the moving target of cloth pressing is set to the down position that is positioned at the needle plate upper surface.
Patent documentation 1: the spy of Japan opens the 2006-102400 communique
Summary of the invention
But, push if carry out cloth according to the method described above, then fabric thickness is big more, by to the Position Control of cloth pressing and the pressing force that acts on the cloth from cloth pressing is big more.In addition, for the cloth of softness, cloth pressing is pushed cloth and made its distortion, and is relative with it, for harder cloth, can push cloth and can not make its distortion substantially.
Therefore, exist because different generation of fabric thickness or cloth material excessively pushed cloth it is damaged, or act on the different problem of pressing force of cloth.
Therefore, the present invention proposes in order to solve above-mentioned problem, and its purpose is to provide a kind of Sewing machines, and it can irrespectively push cloth with stable pressing force with fabric thickness or cloth material, prevents the cloth damage.
The invention of technical scheme 1 record is a kind of Sewing machines, and it has:
Cloth pressing mechanism, it has the cloth pressing that drops to the needle plate top and push cloth, liftably supports this cloth pressing;
Presser foot motor, it is as the drive source that makes aforementioned cloth pressing mechanism action;
Detecting unit, it detects the position of aforementioned cloth pressing; And
Control module, it controls the driving of aforementioned presser foot motor,
This Sewing machines is characterised in that,
Aforementioned control module has:
Position control unit, it is with the driving of the aforementioned presser foot motor of common Current Control;
Pressure control unit, it is by making drive current to the energising of aforementioned presser foot motor less than common electric current, and the pressing force that makes aforementioned cloth pressing push cloth reduces;
Memory cell, its bank switching position; And
Switch control unit, it is when descending cloth pressing by operation driving presser foot motor, with common electric current cloth pressing is descended by the aforementioned location control module, when cloth pressing arrives the switching position that is stored in the aforementioned memory cell, the decline control of aforementioned cloth pressing is switched to the aforementioned pressure control module from the aforementioned location control module, cloth pressing is descended with little electric current.
The invention of technical scheme 2 record is, in the Sewing machines of technical scheme 1 record, it is characterized in that,
Aforementioned cloth pressing can move to lifting position, centre position and push the down position of cloth, this Sewing machines has computing unit, it is according to the height of the aforementioned presser feet when making aforementioned cloth pressing drop to aforementioned down position and push aforementioned cloth with little electric current, detect fabric thickness, and calculate aforementioned centre position according to this fabric thickness
Make by operation cloth pressing from down position or lifting position when move in the centre position, move to the aforementioned centre position that calculates.
The invention of technical scheme 3 record is, in the Sewing machines of technical scheme 1 record, it is characterized in that,
Aforementioned switch control unit makes with little electric current after aforementioned cloth pressing pushes aforementioned cloth, sewing machine electromotor is started and when making, with the aforementioned presser foot motor of common current drives, aforementioned cloth is pushed.
The invention of technical scheme 4 record is, in the Sewing machines of technical scheme 2 records, it is characterized in that,
Aforementioned switch control unit, after making aforementioned cloth pressing push aforementioned cloth with little electric current, make cloth pressing from down position when move in the centre position, with the aforementioned presser foot motor of common current drives.
The invention of technical scheme 5 record is, in the Sewing machines of technical scheme 4 records, it is characterized in that,
Aforementioned switch control unit, make aforementioned cloth pressing push aforementioned cloth with little electric current, make cloth pressing after down position moves to the centre position, make cloth pressing once more from middle position when down position moves, with the aforementioned presser foot motor of common current drives, aforementioned cloth is pushed.
The invention of technical scheme 6 record is, in technical scheme 1 to 5, in the Sewing machines of any record, it is characterized in that,
Have pressure and set input block, its set input when aforementioned cloth pressing is descended by the pressing force of aforementioned cloth pressing to cloth,
The aforementioned pressure control module is switched on the drive current corresponding with the pressure of setting the input block input from aforementioned pressure to aforementioned presser foot motor.
The invention of technical scheme 7 record is, in technical scheme 1 to 5, in the Sewing machines of any record, it is characterized in that,
Have switching position and set input block, it sets the aforementioned switching position of input,
Aforementioned switch control unit is being set the switching position that input block is imported from aforementioned switching position, the decline of aforementioned cloth pressing is controlled switched to the aforementioned pressure control module from the aforementioned location control module.
The effect of invention
According to the invention of technical scheme 1 record,, then at first control presser foot motor with common current drives by position control unit if cloth pressing is descended.
If cloth pressing drops to the arrival switching position, then switch control unit switches to pressure control unit with the drive controlling of presser foot motor.
Pressure control unit makes the drive current to the presser foot motor energising be the little electric current less than common electric current.If the drive current to the presser foot motor energising reduces, then the driving torque of presser foot motor also reduces, and the decrease speed of cloth pressing is reduced.In addition, the pressing force when pushing cloth also reduces.
Promptly, when cloth pressing is in position away from cloth, by driving presser foot motor with common drive current, do not reduce the decrease speed of cloth pressing, when the switching position that arrives near cloth, by drive current is reduced the pressing force of pushing cloth is diminished, simultaneously the decrease speed of cloth pressing is reduced.
Thus, can reduce the time that cloth pressing spends till pushing cloth as far as possible, simultaneously when pushing cloth to push lentamente less than common less power.
Thus, can with fabric thickness or cloth material irrespectively, push cloth with stable pressing force, can prevent to cause the cloth damage owing to cloth pressing sharply descends to producing to impact.
In addition, the computational accuracy of fabric thickness can be improved, operating efficiency can be improved simultaneously.
According to the invention of technical scheme 2 record, by slowly pushing cloth less than common less pressing force, even for the cloth of softness, also can be according to the correct position ground detection fabric thickness of the cloth pressing of this moment.By on these detected fabric thickness data, adding that corrected value calculates the centre position, cloth pressing is moved on this centre position that calculates, can not can damage cloth and correctly revise the effect of the position skew of cloth and have.
Invention according to technical scheme 3 records, make cloth pressing when down position moves, descend with speed slowly by becoming little electric current, and push after the cloth with less pressing force, when making beginning, make the drive current of presser foot motor revert to common electric current by switch control unit, thereby have the effect that when making, can push cloth securely and prevent to be offset.
Invention according to technical scheme 4 or 5 records, make cloth pressing when down position moves, descend with speed slowly by becoming little electric current, and push after the cloth with less pressing force, when making cloth pressing mobile once more, make the drive current of presser foot motor revert to common electric current by switch control unit, thereby have the effect that can drive cloth pressing rapidly.
According to the invention of technical scheme 6 records, pressure control unit is switched on the drive current corresponding with the pressure of setting the input block input from pressure to presser foot motor.
Thus, import desired cloth pressing force, can will switch on to presser foot motor for the most suitable drive current of realizing this pressing force by the operator is corresponding with the material of cloth.
According to the invention of technical scheme 7 records, switch control unit is being set the switching position that input block is imported from switching position, the decline of cloth pressing is controlled switched to pressure control unit from position control unit.
Thus, import desired switching position, can will switch on to presser foot motor for the optimal drive current of realizing this pressing force by the operator is corresponding with fabric thickness.
Description of drawings
Fig. 1 is the oblique view of structure of the cloth pressing mechanism of expression Sewing machines.
Fig. 2 is near the enlarged drawing of cloth pressing among Fig. 1.
Fig. 3 is near the enlarged drawing of presser foot motor among Fig. 1.
Fig. 4 is near the enlarged drawing of pressure foot among Fig. 1.
Fig. 5 is the block diagram of structure of the control system of expression Sewing machines.
Fig. 6 is the general chart that the action of the cloth pressing under the situation that each operating pedal is operated is described.
Fig. 7 is the block diagram of the processing capacity of expression presser foot motor FEEDBACK CONTROL portion.
Fig. 8 is expression from setting the flow chart of the processing of centre position till make.
Fig. 9 is that expression is from setting the flow chart of centre position to the processing till move in the centre position.
The specific embodiment
Below, with reference to accompanying drawing, describe the preferred forms of the cloth presser device of Sewing machines involved in the present invention in detail.
In the following description, Sewing machines 1 is being placed under the state of horizontal plane, with level and the direction parallel with the length direction of pedestal part as Y direction, with level and with the direction of Y direction quadrature as X-direction, will with the direction of X-axis and Y direction quadrature as Z-direction.
The structure of＜Sewing machines 〉
To shown in Figure 5, Sewing machines 1 has as Fig. 1: cloth pressing mechanism 20, and it liftably supports cloth pressing 21, and this cloth pressing 21 drops on the needle plate 10, and keeping sewn object is cloth (comprising leather, nonwoven fabric etc.); Presser foot motor (stepping motor) 11, it becomes the drive source of the down maneuver of cloth pressing 21; Poewr transmission mechanism 50, its rotary driving force with presser foot motor 11 applies to cloth pressing mechanism 20; Operating pedal 70, it drives pedal motor 11 by the operation of entering into, and cloth pressing 21 is descended; And control device 100, it carries out the drive controlling of Sewing machines each several part.
And Sewing machines 1 has makes required various mechanisms, comprising: reciprocating mechanism, and it keeps suture needle, moves up and down; Container mechanism, it is below needle plate, and making rolls off the production line is wrapped in and inserts on the reaching the standard grade in the suture needle; And cloth travel mechanism etc., it makes cloth pressing 21 move along needle plate 10 upper surfaces via cloth pressing mechanism 20, makes needle downing position be positioned at the optional position, because these all are known mechanisms, so the diagram of omission and explanation thereof.
(cloth pressing mechanism)
As shown in Figures 1 to 4, cloth pressing mechanism 20 has: support frame 22, its base end part remain in the cloth travel mechanism, simultaneously its leading section side are positioned at along on the optional position of X-Y plane; Lower plate 23, it is positioned at the downside of cloth pressing 21, keeps cloth between itself and cloth pressing 21; Presser feet holding member 24, its end at cloth pressing 21 uprightly is provided with; Guide rail bracket 25, it is arranged on the leading section of support frame 22, simultaneously via presser feet holding member 24, liftably supports cloth pressing 21; A pair of swing arm 26, they are supported on the support frame 22 swingably, and by swing, an end applies the locomotivity of lifting to presser feet holding member 24; Pressing plate 27, it can be sewed frame support up or down; Tilting member 28, it is supported on the top of support frame 22 swingably, and an end contacts with the lower surface of pressing plate 27 simultaneously; And first and second connecting rod body 29,30, they link the other end of tilting member 28 and the other end of each swing arm 26 on the same direction of above-below direction.
Cloth pressing 21 is OBL frameworks, and the inboard on four limits is opening significantly.With respect to falling pin at the inboard cloth that keeps of this peristome and making.
Corresponding with it, lower plate 23 also has the OBL frame portion with cloth pressing 21 same size, with cloth pressing 21 opening equally significantly.And lower plate 23 has the portion that is provided with of extending, and it extends with minor face abreast from being equivalent to the position that it grows the centre on limit, and the leading section that this extension is provided with portion remains in the cloth travel mechanism.And with the leading section of support frame 22, OBL frame portion side is positioned at along on the position arbitrarily of X-Y plane.
Presser feet holding member 24 forms roughly L word shape, and one end and cloth pressing 21 are fixedly connected, and its other end is supported on the guide rail bracket 25.
Each swing arm 26 is set to, across support frame 22, respectively with roughly along the state of Y direction, be supported on support frame 22.And, each swing arm 26, with its length direction pars intermedia along X-direction the axle as the center, be supported on swingably on the support frame 22, carry out an end of this swing, be inserted in the through hole that on the other end of the presser feet holding member 24 of guide rail bracket 25 upper supports, is provided with.Thus, if pass through the swing of swing arm 26, the one end swings up and down, and then via presser feet holding member 24, cloth pressing 21 also swings up and down.And each swing arm 26 on its axle support section, by not shown torsion-coil spring, continues cloth pressing 21 to the direction pretension that moves towards the top.
Pressing plate 27 is OBL flat board, has back shaft 27a, its central vertical of the upper surface of pressing plate fix and uprightly be provided with.This back shaft 27a is the pole shape, is inserted on sewing machine stand in the hard-wired metal bearing 32 cylindraceous, and via this back shaft 27a, pressing plate 27 is liftably supported along Z-direction.
And, back shaft 27a, its upper end is outstanding upward from metal bearing 32, on the upper end of this back shaft 27a, pin 27b is set on the both sides of its radial direction.Each is sold 27b and engages with Poewr transmission mechanism 50, is used to accept the input of pressing force downwards.
Tilting member 28 is configured in support frame 22 tops with the state along Y direction.Tilting member 28 is the center with the axle along X-direction of its length direction pars intermedia, is supported on swingably on the support frame 22, and an end that moves up and down by its swing is configured to, with the central portion butt of the lower surface of pressing plate 27.
On the other hand, the other end of tilting member 28 is via two connecting rod bodies 29,30, with the other end (with the end of cloth pressing 21 opposition sides) binding of each swing arm 26.Because each swing arm 26 utilizes torsion-coil spring with its other end pretension downwards, so via two connecting rod bodies 29,30, the other end of tilting member 28 is also by pretension downwards.Thus, an end of tilting member 28 is subjected to the elasticity of torsion-coil spring and pretension upward, its result, and pressing plate 27 always keeps the state that boosted upward.
In addition, above-mentioned connecting rod body 29 supported frameworks 22 support swingably, and second connecting rod body 30 links with the swing end of first connecting rod body 29 and the other end of tilting member 28.And the swing end of first connecting rod body 29 utilizes extension spring 31, links with the other end of swing arm 26 mode with crimping.This extension spring 31 is compared stronger with described torsion-coil spring, under the situation that swing upward the swing end of first connecting rod body 29 resisting this torsion-coil spring, the other end of swing arm 26 is also by pull-up upward.
And if push downwards by the back shaft 27a of Poewr transmission mechanism 50 with pressing plate 27, then an end of tilting member 28 descends and rises on the other end, and via each linkage component 29,30, the other end of swing arm 26 is pull-up upward also.Thus, cloth pressing 21 is pushed downwards, becomes the state that keeps cloth between cloth pressing 21 and lower plate 23.
(Poewr transmission mechanism)
As shown in Figures 1 to 4, Poewr transmission mechanism 50 has: cam 51, and it is arranged on the output shaft 11a of presser foot motor 11, rotates with the rotation of output shaft 11a; Presser feet drive link 53, it forms roughly L word shape, is inserted into 52 supports of swinging axle in the bend of presser feet drive link; Cam follower 54, it is arranged on an end of presser feet drive link 53, with the periphery butt of cam 51; Presser feet links connecting rod 56, its can rotate freely link with the other end of presser feet drive link 53, move with the swing of presser feet drive link 53; Swing connecting bar 57, one end and presser feet link connecting rod 56 and link; Presser feet pitman shaft 58, the other end that it is inserted into swing connecting bar 57 is fixed on the swing connecting bar 57; And two presser feet wrists 59,59, their axles are supported on the presser feet pitman shaft 58.
Swinging axle 52 can be fixed on the sewing machine stand with rotating freely.
Presser feet drive link 53 is fixed on the swinging axle 52, is that oscillation center is swung with swinging axle 52.The swing of presser feet drive link 53 is results that the rotation cam follower 54 because of cam 51 moves along cam 51 peripheries.Because cam follower 54 is fixed on the end of presser feet drive link 53, so if cam follower 54 moves along with the rotation of cam 51, then this running transform is to be the swing of the presser feet drive link 53 at center with swinging axle 52.
Presser feet links connecting rod 56 and roughly disposes along the Y direction.The other end that links connecting rod 56 and presser feet drive link 53 owing to presser feet links, thus if 53 swing of presser feet drive link, then presser feet binding connecting rod 56 would also be swung to same direction with the swing of its other end.
Presser feet pitman shaft 58, axis roughly dispose along directions X.
One end axle of presser feet wrist 59,59 is supported on the presser feet pitman shaft 58 and fixes, so that its face direction is parallel to each other.The other end of presser feet wrist 59,59 extends and forms to the top of pin 27b respectively, and by the rotation of presser feet pitman shaft 58, the other end that makes presser feet wrist 59,59 descends and can be downwards by pad 27b.
(operating pedal)
As Fig. 5, shown in Figure 6, operating pedal 70 is provided with three (70A, 70B, 70C), is connected with control device 100 respectively.The operation signal of entering into operating pedal 70 and producing sends to control device 100, and control device 100 based on the operation signal that receives, drives presser foot motor 11, makes cloth pressing 21 liftings.And, in operating pedal 70, also have and make the switch of making beginning.
As shown in Figure 6, operating pedal 70A, if operate when cloth pressing 21 is positioned at lifting position (top dead-centre), then cloth pressing 21 drops to the centre position.Operating pedal 70A, if operate when cloth pressing 21 is positioned at the centre position, then cloth pressing 21 drops to down position (pushing the position of cloth).Operating pedal 70A, if operate when cloth pressing 21 is positioned at down position, then cloth pressing rises to the centre position.
As shown in Figure 6, operating pedal 70B, if operate when cloth pressing 21 is positioned at lifting position, then cloth pressing 21 drops to down position.Operating pedal 70B, if operate when cloth pressing 21 is positioned at the centre position, then cloth pressing 21 drops to down position.Operating pedal 70B, if operate when cloth pressing 21 is positioned at down position, then cloth pressing 21 rises to lifting position.
As shown in Figure 6, operating pedal 70C is that the beginning pedal of beginning is made in indication, even operate cloth pressing 21 also not liftings when cloth pressing 21 is positioned at lifting position or centre position.Operating pedal 70C if operate when cloth pressing 21 is positioned at down position, then begins to make.
(calculating in centre position and mobile automatically)
When pattern is set in centre position described later, operating pedal 70A becomes the functional unit that is used to start following continuous control,, detects the fabric thickness of the sewn object of mounting on sewing machine table that is, calculate the centre position, make cloth pressing move to this place, centre position automatically.
(control device)
As shown in Figure 5, control device 100 has: CPU 101, and it carries out various processing, the drive controlling of Sewing machines 1; RAM 102, and it becomes the working region of CPU 101; ROM103, its storage stitch data and program; And EEPROM 104, it stores data updated at any time.
Be connected with presser foot motor 11 and presser feet encoder 12 on control device 100, this presser feet encoder 12 detects the detecting unit of the height (position) of cloth pressing 21 as the anglec of rotation that detects presser foot motor 11.The anglec of rotation by presser feet encoder 12 detected presser foot motor 11 is sent to control device 100, calculates the slippage or the ascending amount of cloth pressing 21.In addition, detecting unit is not limited to presser feet encoder 12, for example, also can be made of slide potentiometer (not shown), and it carries out electric detection to the height (position) as the back shaft 27a of the parts that cloth pressing 21 is moved up and down.
Control device 100 is connected with sewing machine electromotor 13 and spindle encoder 14, and this sewing machine electromotor makes the main axis rotation of Sewing machines 1, and this spindle encoder detects the anglec of rotation of sewing machine electromotor 13.
Control device 100 and the X-axis motor 15 that on directions X, drives cloth travel mechanism, and the X-axis encoder 16 that detects the anglec of rotation of X-axis motor 15 be connected.
Control device 100 and the Y-axis motor 17 that on the Y direction, drives cloth travel mechanism, and the Y-axis encoder 18 that detects the anglec of rotation of Y-axis motor 17 be connected.
Control device 100 is connected with guidance panel 80, and it carries out from operator's operation input and indication input, and showing simultaneously should be to the information of operator's report.
In ROM 103, the relevant program of lifting, stop position of the cloth pressing 21 of storage with the time at each operating pedal 70 of position operation of cloth pressing 21.
In ROM 103, store the Position Control program, it is carried out and the realization following function by CPU 101, promptly, when cloth pressing 21 descends, to send to presser foot motor 11 as the command signal of the down position of target, feed back the position of the cloth pressing 21 that will calculate according to the actual anglec of rotation by presser feet encoder 12 detected presser foot motor 11 simultaneously, thereby with the driving of common Current Control presser foot motor 11.That is, control device 100 works as position control unit.In addition, this position control unit is not limited to such as mentioned above feedback cloth pressing position and controls, so long as pass through with common current drives presser foot motor 11, compare with situation about driving with little electric current described later, cloth pressing just is included in the control range with the situation that fast speed moves.
Store the Pressure control program in ROM 103, it is carried out and is realized following function by CPU 101, that is, become less than the little electric current of electric current usually by making drive current to presser foot motor 11 energisings, and the pressing force that makes cloth pressing 21 push cloth reduces.That is, control device 100 works as pressure control unit.
Store switching position in EEPROM 104, it is used for when cloth pressing 21 descends, and the control that will descend switches to Pressure control from Position Control.That is, EEPROM 104 works as memory cell.
Make by operator described later operation cloth pressing 21 from lifting position when down position moves, under the situation above cloth pressing 21 is positioned at switching position, by the common electric current of Position Control utilization cloth pressing 21 is descended, but under the situation below cloth pressing 21 is positioned at switching position, make the drive current of switching on to presser foot motor 21 less than common electric current, and cloth pressing 21 is descended with Pressure control.
Here, if reduce to the drive current of presser foot motor 11 energisings, then the driving torque of presser foot motor 11 reduces, so the decrease speed of cloth pressing 21 reduces.In addition, if the driving torque of presser foot motor 11 reduces, then the pressing force of being pushed by 21 pairs of clothes of cloth pressing reduces.Therefore, with the cloth butt, then become the state that cloth pressing 21 is pressed into the moment of torsion deficiency of cloth if cloth pressing 21 descends, cloth pressing 21 stopped to descend in the moment with the cloth butt.
In ROM 103, store switching control program, it is carried out by CPU 101, and when the cloth pressing that descends 21 arrives the switching position that is stored among the EEPROM 104, with the decline control of cloth pressing 21 from the Position Control of being undertaken by the executing location control program, switch to by carrying out the Pressure control that the Pressure control program is carried out.And, store and above-mentioned opposite switching control program, its as described later shown in, with the drive controlling of cloth pressing 21 from by carrying out Pressure control that the Pressure control program carries out, switching to the Position Control of being undertaken by the executing location control program.That is, control device 100 is as switch control unit works, and its drive current to presser foot motor is switching between electric current and the little electric current usually.
In addition, the position of the cloth pressing 21 when control device 100 will be stopped by the anglec of rotation of presser feet encoder 12 detected presser foot motor 11 is identified as the position with the cloth butt.That is, make cloth pressing 21 drop to the command signal of bottom dead centre the presser foot motor 11 and, be identified as the position of cloth pressing 21 and cloth butt by the timing that produces deviation between the presser feet encoder 12 detected actual anglecs of rotation.This be because, because by cloth pressing 21 and cloth butt, and stop cloth pressing 21 to descend, so though continue can not increase by the presser feet encoder 12 detected anglecs of rotation to presser foot motor 11 output instruction signals.
In ROM 103, store the centre position calculation procedure, it carries out and realizes following function (computing unit) by CPU 101, that is, and and on the fabric thickness that calculates by execution fabric thickness calculation procedure, add the corrected value that is stored among the EEPROM 104, and calculate the centre position.
Here, the centre position that calculates is stored among the EEPROM 104.That is, EEPROM 104 works as the centre position memory cell.
Store the corrected value that carries out add operation with fabric thickness in EEPROM 104, this fabric thickness is carried out the fabric thickness calculation procedure by CPU 101 and is calculated.Here, so-called corrected value, be in order cloth pressing 21 to be stopped at compare a little by on the position of top and the value of setting with the height of detected fabric thickness, set by the operator in advance according to the pliability of cloth, the thickness of cloth etc., by cloth pressing is stopped on this centre position that calculates, the position skew of cloth can be revised exactly, and cloth can be do not damaged.Certainly, can set by guidance panel 80, so that can change corrected value halfway.
Therefore, so-called centre position, it is the height that after adding corrected value on the height of detected fabric thickness, obtains apart from the needle plate upper surface, perhaps, be the height that after adding corrected value on the height that floats a little in the mode of not conflicting with cloth with respect to detected fabric thickness, obtains apart from the needle plate upper surface.
Guidance panel 80 is provided with the pressure configuration switch 81 of setting input block as pressure, and it sets the pressing force of input by 21 pairs of clothes of cloth pressing.Pressure configuration switch 81 is made of touch panel, by the pressure configuration switch 81 on the touch operation panel 80, can import the pressure of expectation.
CPU 101 will switch on to presser foot motor 11 with the corresponding drive current of pressure from 81 inputs of pressure configuration switch by carrying out the Pressure control program.
Guidance panel 80 is provided with the switching position configuration switch 82 of setting input block as switching position, and it sets the input switching position.Switching position configuration switch 82 is made of touch panel, by the switching position configuration switch 82 on the touch operation panel 80, can import the switching position of expectation.
CPU 101 is by carrying out switching control program, in the switching position from 82 inputs of switching position configuration switch, the decline control of cloth pressing 11 switched to Pressure control from Position Control.
The control of＜presser foot motor 〉
As shown in Figure 7, control device 100 has: position command portion 72, and it sends the instruction P2 that carries out the position that the cloth pressing 21 of lifting should stop by presser foot motor 11; Presser foot motor FEEDBACK CONTROL portion 73, it carries out FEEDBACK CONTROL in the driving of presser foot motor 11; Foot pressure instruction department 74, cloth pressing instructed to the pressing force of cloth when it descended to cloth pressing 21; And control switching command portion 75, it switches to the instruction of following control, that is, and and the decline control of the presser feet 21 in the decline of cloth pressing 21 control and the stitch mode.
Presser foot motor FEEDBACK CONTROL portion 73 in the drive controlling of presser foot motor 11, based on the anglec of rotation of presser feet encoder 12 detected presser foot motor 11, carries out FEEDBACK CONTROL.
Presser foot motor FEEDBACK CONTROL portion 73 has: position operational part 73a, and it calculates the command speed V2 of presser foot motor 11; Speed controlling portion 73c, it calculates the torque T 2 of presser foot motor 11 necessity; Speed test section 73d, it calculates detection speed S2 according to the anglec of rotation A2 of presser feet encoder 12 detected presser foot motor 11; And the 73e of torque management portion, necessary torque T 2 and presser feet encoder 12 detected motor phase θ 2 that it calculates according to speed controlling portion 73c, the output torque Te2 of calculating presser foot motor 11.
Position operational part 73a is according to the deviation between the anglec of rotation A2 of centre position instruction P2 and presser feet encoder 12 detected presser foot motor 11, calculating drives the command speed V2 of presser foot motor 11 with following rotary speed, and this rotary speed is the speed that makes the down position of becoming of presser foot motor 11 or become the anglec of rotation shown in the instruction P2 in centre position.
The 73e of torque management department carries out following control, that is, and and in order to produce from the necessary torque T 2 of speed controlling portion 73c output, based on presser feet encoder 12 detected motor phase θ 2, carry out output phase and proofread and correct, adjust output current on this basis, from drive circuit 25 output output torque Te2.This is the type of drive of general known pulse motor.
Drive circuit 76 is the motor drivers that are made of FET etc.Drive circuit 76 drives presser foot motor 11 based on output torque Te2.
Foot pressure instruction department 74 is the parts that work as pressure control unit, and the command value of the current value that it will be switched on to presser foot motor 11 for the pressing force of controlling 21 pairs of clothes of cloth pressing exports the 73e of torque management portion to.Specifically, presser foot motor 11 reach be stored in EEPROM 104 in advance in the situation of the corresponding anglec of rotation of switching position under, send instruction, with will be than the common electric current in the stitch mode little little electric current to presser foot motor 11 energisings.Thus, below switching position, the driving torque that presser foot motor 11 produces reduces.
In addition, position command portion 72, presser foot motor FEEDBACK CONTROL portion 73, foot pressure instruction department 74 are carried out software among the ROM103 that is stored in control device shown in Figure 5 100, that Sewing machines 1 each several part is controlled by CPU 101 and are worked.
The down maneuver of＜cloth pressing 〉
Shown in Fig. 1 to 4, by the driving of presser foot motor 11, output shaft 11a is to A direction rotation, if move with the cam follower 54 of the periphery butt of cam 51, then presser feet drive link 53 be that middle mind-set B direction is rotated with swinging axle 52.To the rotation of B direction, presser feet links connecting rod 56 and moves to the C direction by swinging axle 52.Link connecting rod 56 by presser feet and move to the C direction, 58 rotations of presser feet pitman shaft, the front end edge D side of being directed downwards of presser feet wrist 59,59 moves.By moving of presser feet wrist 59,59, depresses pin 27b is pushed downwards by presser feet wrist 59,59, and presser feet axle 27a also moves downwards.By the decline of presser feet axle 27a, tilting member 28 is pressed, and the front end of first connecting rod body 29 also descends.Thus, presser feet holding member 24 also descends, and cloth pressing 21 descends.
The decline control of＜cloth pressing 〉
As shown in Figure 8, set in the process of switching between the dedicated mode in stitch mode and centre position, to prepare key be ON (step S1) if the operator makes under stitch mode, and then control device 100 shows on guidance panel 80 and makes picture (step S2).Then, by the operator cloth is arranged on (step S3) on the needle plate.After the cloth setting was finished, if operating pedal 70B is operated (step S4), then control device 100 drove presser foot motor 11, made cloth pressing 21 declines (step S5).At this moment, control device 100 is as its effect of position control unit, to presser foot motor 11 energisings, cloth pressing is descended rapidly the drive current (electric current usually) that uses in the operation usually, the switching position place (step S5) that cloth pressing 21 is dropped to be stored among the EEPROM 104.In the decline process, control device 100 judges by the anglec of rotation of presser feet encoder 12 detection presser foot motor 11 whether presser foot motor 11 arrives the anglec of rotation suitable with switching position (step S6).
Here, be judged as presser foot motor 11 at control device (switch control unit) 100 and arrive under the situation of the anglec of rotation suitable with switching position (step S6: be), control device 100 carries out the switching that the decline of cloth pressing 21 is controlled.That is, control device 100 works as pressure control unit, and the drive current to presser foot motor 11 energisings is reduced, under the state that drive current is reduced, make cloth pressing 21 drop to lentamente with the cloth butt till (step S7).
Then, control device 100 judges whether the decline of cloth pressing 21 stops (step S8).Here, because diminish to the drive current of presser foot motor 11 energising, so the driving torque of presser foot motor 11 reduces, the pressing force of 21 pairs of clothes of cloth pressing reduces, and stops Shi Buhui in the decline of cloth pressing 21 and excessively pushes cloth.
The judgement whether decline of cloth pressing 21 stops to be carried out according to following step.
If cloth pressing 21 and cloth butt, then cloth pressing 21 can't continue to descend, though continue to make the instruction of cloth pressing 21 declines to presser foot motor 11 outputs, but stopped by the anglec of rotation of the presser foot motor 11 of presser feet encoder 12 detected reality constant, so between produces deviation.The timing that control device 100 begins this deviation to produce is judged as the position of cloth pressing 21 and cloth butt.
Be judged as cloth pressing 21 descend (step S8: be) under the situation about stopping at control device 100, control device 100 by calculating cloth pressing 21 slippage and descend before cloth pressing 21 apart from the difference between the height of the upper surface of needle plate 10, calculate fabric thickness, wherein, the slippage of this cloth pressing 21 with by the anglec of rotation of presser feet encoder 12 detected presser foot motor 11 corresponding (step S9).
Then, control device 100 adds the corrected value that is stored among the EEPROM 104 on the fabric thickness that calculates, and calculates the centre position, and the centre position that calculates is stored in (step S10) among the EEPROM 104.
After calculating and storing the centre position, control device 100 judges whether operating pedal 70A has been carried out operating (step S11).
Here, be judged as under the situation of operating pedal 70A having been carried out operation (step S11: be) at control device (switch control unit) 100, control device 100 is with common current drives presser foot motor 11, cloth pressing 21 is risen rapidly, make its place, centre position in being stored in EEPROM 104 stop (step S12).
Then, control device 100 judges whether operating pedal 70B has been carried out operating (step S13).Here, be judged as under the situation of operating pedal 70B having been carried out operation (step S13: be) at control device 100, control device 100 (switch control unit) descends cloth pressing 21 with common current drives presser foot motor 11, pushes cloth (step S14) with common pressing force.On the other hand, in step S13, be judged as (step S13: deny) under the situation of operating pedal 70B not being operated at control device 100, control device 100 judges whether operating pedal 70A has been carried out operating (step S15).
In step S15, be judged as under the situation of operating pedal 70A having been carried out operation (step S15: be) at control device 100, control device 100 descends cloth pressing 21 and pushes cloth (step S14).On the other hand, in step S15, be judged as (step S15: deny) under the situation of operating pedal 70A not being operated at control device 100, control device 100 returns step S8.
In step S11, be judged as (step S11: deny) under the situation of operating pedal 70A not being operated at control device 100, control device 100 judges whether operating pedal 70C has been carried out operating (step S16).
Here, be judged as under the situation of operating pedal (start-up operation pedal) 70C having been carried out operation (step S16: be) at control device 100, control device 100 is with common current drives presser foot motor 11, make cloth pressing 21 declines and push cloth with common pressing force, do not make deviation (step S17) so that in the process of making, do not produce, start sewing machine electromotor, begin to make (step S18).
On the other hand, in step S16, be judged as (step S16: deny) under the situation of operating pedal 70C not being operated at control device 100, control device 100 judges whether operating pedal 70B has been carried out operating (step S19).
In step S19, be judged as under the situation of operating pedal 70B having been carried out operation (step S19: be) at control device 100, control device 100 drives presser foot motor 11 rapidly with common electric current, makes cloth pressing 21 rise to the preceding top dead-centre (step S20) that descends.
After the processing of step S18 or step S20,, then finish this processing if control device 100 is judged as sewing finishing (step 21).
(calculating in centre position and mobile automatically)
Below, as shown in Figure 9, at setting in the process of switching between the dedicated mode in stitch mode and centre position, the operator sets in the centre position and makes in the dedicated mode that to prepare key be that the control of the situation of ON describes.
Under the situation that changes to the different cloth of thickness, need reset the centre position.This resets, and carries out in dedicated mode is set in the centre position, and compares in stitch mode, can make simple to operateization.That is, if the operating pedal 70A in the operating pedal is operated, then as illustrating in the stitch mode, cloth pressing 21 descend and with the cloth butt after stop.
Set in the process of switching between the dedicated mode in stitch mode and centre position, to prepare key be ON (step S31) if the operator makes in stitch mode, and then control device 100 shows on guidance panel 80 and makes picture (step S32).Then, by the operator cloth is arranged on (step S33) on the needle plate.After the cloth setting was finished, if operating pedal 70A is operated (step S34), then control device 100 drove presser foot motor 11 and makes cloth pressing 21 declines (step S35).At this moment, the drive current (electric current usually) that control device 100 will use in common operation is to presser foot motor 11 energisings, cloth pressing is dropped rapidly to be stored in the switching position place among the EEPROM 104.
In decline, control device 100 utilizes presser feet encoder 12 to detect the anglec of rotation of presser foot motor 11, judges whether presser foot motor 11 arrives the anglec of rotation suitable with switching position (step S36).
Here, be judged as presser foot motor 11 at control device 100 and arrive under the situation of the anglec of rotation suitable with switching position (step S36: be), control device 100 carries out the switching that the decline of cloth pressing 21 is controlled.That is, the drive current to presser foot motor 11 energising is reduced, under the state that drive current is reduced, make cloth pressing 21 drop to the cloth butt till (step S37).
Then, control device 100 judges whether the decline of cloth pressing 21 stops (step S38).Here, because diminish to the drive current of presser foot motor 11 energising, so the driving torque of presser foot motor 11 reduces, the pressing force of 21 pairs of clothes of cloth pressing reduces, and stops Shi Buhui in the decline of cloth pressing 21 and excessively pushes cloth.
Be judged as under the situation that the decline of cloth pressing 21 stops (step S38: be) at control device 100, control device 100 by calculating cloth pressing 21 slippage and descend before cloth pressing 21 apart from the difference between the height of the upper surface of needle plate 10, calculate fabric thickness, wherein, the slippage of this cloth pressing 21 with by the anglec of rotation of presser feet encoder 12 detected presser foot motor 11 corresponding (step S39).
Then, control device 100 adds the corrected value that is stored among the EEPROM 104 on the fabric thickness that calculates, and calculates the centre position, and the centre position that calculates is stored in (step S40) among the EEPROM 104.
Then, control device 100 automatically with common current drives presser foot motor 11, rises cloth pressing 21 rapidly after calculating the centre position, and makes it stop at the place, centre position (step S41) that is stored in EEPROM 104.
Then, if trample operating pedal 70B (step S42), then control device 100 makes cloth pressing 21 drop to down position (step S43).
Make after cloth pressing 21 drops to down position, if trample operating pedal 70C (step S44), then control device 100 begins to make (step S45).In the process of making,, then finish this processing if control device 100 is judged as sewing finishing (step S46: be).
＜action effect 〉
According to above-mentioned Sewing machines 1, if because cloth pressing 21 is descended, no show is stored in the switching position place among the EEPROM 104 during beginning, so the CPU101 executing location control program of control device 100 is controlled, so that the position of cloth pressing 21 is fed back, with common current drives presser foot motor 11 cloth pressing is descended rapidly, wherein, the position of this cloth pressing 21 is that the actual anglec of rotation according to the presser foot motor 11 that is detected out by presser feet encoder 12 calculates.
Cloth pressing 21 continues to descend, if cloth pressing 21 arrives switching positions, then CPU101 is by carrying out switching control program, the drive controlling of presser foot motor 11 is switched to by the Pressure control program undertaken.
CPU 101 is by carrying out the Pressure control program, when switching position descends, the drive current to presser foot motor 11 energisings reduced downwards.If the drive current to presser foot motor 11 energisings reduces, then the driving torque of presser foot motor 11 also reduces, and the decrease speed of cloth pressing 21 reduces.And the pressing force when pushing cloth also reduces.
Promptly, when cloth pressing 21 is in position away from cloth, by driving presser foot motor 11 with common drive current, can not reduce the decrease speed of cloth pressing 21 and decline rapidly, when the switching position that arrives near cloth, by drive current is reduced the pressing force of pushing cloth is reduced, the decrease speed of cloth pressing 21 is reduced.
Thus, can reduce the time that cloth pressing 21 spends till pushing cloth, simultaneously when pushing cloth, to push lentamente less than common less power as far as possible.
Thus, even because the cloth of soft easy damaged, also can improve the computational accuracy of fabric thickness, and according to this fabric thickness data computation centre position that calculates, so by making cloth pressing stop at this place, centre position that calculates, can with fabric thickness or cloth material irrespectively, Yi Bian cloth pressing gently contacted with cloth and do not damage cloth, Yi Bian revise the position skew of cloth exactly.
In addition,, carry out the Pressure control program and switch to little electric current, can improve operating efficiency by after descending rapidly by the common electric current of switch control unit utilization.
In addition, carry out the Pressure control program by CPU 101, and drive current that will be corresponding with the pressure of importing from pressure configuration switch 81 is to presser foot motor 11 energisings.
Thus, import desired cloth pressing force by the operator is corresponding with the cloth material, can for the optimal drive current of realizing this pressing force to presser foot motor 11 energisings.
In addition, carry out switching control program by CPU 101, can be in switching position from switching position configuration switch 82 input, the decline control of cloth pressing 21 is switched to by carrying out the control that the Pressure control program is carried out from the control of being undertaken by the executing location control program.
Thus, import desired switching position, can will switch on to presser foot motor for the optimal drive current of realizing this pressing force by the operator is corresponding with fabric thickness.
(other)
In addition, the invention is not restricted to above-mentioned embodiment.For example, in the above-described embodiment, position control unit and pressure control unit are switched and control the lifting of cloth pressing, but be not limited to cloth pressing, can use so long as carry out the parts of lifting action.
Claims (7)
1. Sewing machines, it has:
Cloth pressing mechanism, it has the cloth pressing that drops to the needle plate top and push cloth, liftably supports this cloth pressing;
Presser foot motor, it is as the drive source that makes aforementioned cloth pressing mechanism action;
Detecting unit, it detects the position of aforementioned cloth pressing; And
Control module, it controls the driving of aforementioned presser foot motor,
This Sewing machines is characterised in that,
Aforementioned control module has:
Position control unit, it is with the driving of the aforementioned presser foot motor of common Current Control;
Pressure control unit, it is by making drive current to the energising of aforementioned presser foot motor less than common electric current, and the pressing force that makes aforementioned cloth pressing push cloth reduces;
Memory cell, its bank switching position; And
Switch control unit, it is when descending cloth pressing by operation driving presser foot motor, with common electric current cloth pressing is descended by the aforementioned location control module, when cloth pressing arrives the switching position that is stored in the aforementioned memory cell, the decline control of aforementioned cloth pressing is switched to the aforementioned pressure control module from the aforementioned location control module, cloth pressing is descended with little electric current.
2. Sewing machines as claimed in claim 1 is characterized in that,
Aforementioned cloth pressing can move to lifting position, centre position and push the down position of cloth,
This Sewing machines has computing unit, and it detects fabric thickness, and calculate aforementioned centre position according to this fabric thickness according to the height of the aforementioned presser feet when making aforementioned cloth pressing drop to aforementioned down position and push aforementioned cloth with little electric current,
Make by operation cloth pressing from down position or lifting position when move in the centre position, move to the aforementioned centre position that calculates.
3. Sewing machines as claimed in claim 1 is characterized in that,
Aforementioned switch control unit makes with little electric current after aforementioned cloth pressing pushes aforementioned cloth, sewing machine electromotor is started and when making, with the aforementioned presser foot motor of common current drives, aforementioned cloth is pushed.
4. Sewing machines as claimed in claim 2 is characterized in that,
Aforementioned switch control unit, after making aforementioned cloth pressing push aforementioned cloth with little electric current, make cloth pressing from down position when move in the centre position, with the aforementioned presser foot motor of common current drives.
5. Sewing machines as claimed in claim 4 is characterized in that,
Aforementioned switch control unit, make aforementioned cloth pressing push aforementioned cloth with little electric current, make cloth pressing after down position moves to the centre position, make cloth pressing once more from middle position when down position moves, with the aforementioned presser foot motor of common current drives, aforementioned cloth is pushed.
6. as any described Sewing machines in the claim 1 to 5, it is characterized in that,
Have pressure and set input block, its set input when aforementioned cloth pressing is descended by the pressing force of aforementioned cloth pressing to cloth,
The aforementioned pressure control module is switched on the drive current corresponding with the pressure of setting the input block input from aforementioned pressure to aforementioned presser foot motor.
7. as any described Sewing machines in the claim 1 to 5, it is characterized in that,
Have switching position and set input block, it sets the aforementioned switching position of input,
Aforementioned switch control unit is being set the switching position that input block is imported from aforementioned switching position, the decline of aforementioned cloth pressing is controlled switched to the aforementioned pressure control module from the aforementioned location control module.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008258540A JP2010088493A (en) | 2008-10-03 | 2008-10-03 | Sewing machine |
| JP2008-258540 | 2008-10-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101713130A true CN101713130A (en) | 2010-05-26 |
| CN101713130B CN101713130B (en) | 2013-03-27 |
Family
ID=42215091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101801218A Active CN101713130B (en) | 2008-10-03 | 2009-09-29 | Seamer |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2010088493A (en) |
| KR (1) | KR20100038150A (en) |
| CN (1) | CN101713130B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294486A (en) * | 2014-09-30 | 2015-01-21 | 浙江理工大学 | Device and method for detecting pressure of presser foot of sewing machine |
| CN105316875A (en) * | 2014-08-04 | 2016-02-10 | Juki株式会社 | Sewing machine |
| CN105386242A (en) * | 2014-08-29 | 2016-03-09 | Juki株式会社 | Hole serging machine |
| CN105463711A (en) * | 2015-12-25 | 2016-04-06 | 杰克缝纫机股份有限公司 | Presser foot lifting electromagnet closed-loop control device for industrial sewing machine and control method |
| CN105696207A (en) * | 2016-05-06 | 2016-06-22 | 浙江众邦机电科技有限公司 | Lifting control method for presser foot of sewing machine |
| CN106544790A (en) * | 2015-09-16 | 2017-03-29 | Juki株式会社 | The presser feet lifting mechanism of sewing machine |
| CN109023737A (en) * | 2018-10-17 | 2018-12-18 | 浙江众邦机电科技有限公司 | A kind of the presser foot lifter control system and method for flush joint thickness material machine |
| CN109652927A (en) * | 2018-12-29 | 2019-04-19 | 杰克缝纫机股份有限公司 | Presser feet control method, device, computer equipment and storage medium |
| CN109706632A (en) * | 2019-03-08 | 2019-05-03 | 杰克缝纫机股份有限公司 | A kind of control method of sewing-machine automatic needle-foot-lifting |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114606668B (en) * | 2022-04-02 | 2023-05-09 | 浙江越隆缝制设备有限公司 | Presser foot control method and embroidery machine applying same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62120884A (en) * | 1985-11-19 | 1987-06-02 | ブラザー工業株式会社 | Cloth presser raising and falling apparatus of sewing machine |
| JPS63279879A (en) * | 1987-05-11 | 1988-11-16 | ジューキ株式会社 | Cloth pressing control apparatus of sewing machine |
| JP3294731B2 (en) * | 1995-02-14 | 2002-06-24 | ブラザー工業株式会社 | Sewing machine presser foot control device |
| JP3913842B2 (en) * | 1997-07-02 | 2007-05-09 | Ｊｕｋｉ株式会社 | Sewing presser pressure control device |
| JP2003093773A (en) * | 2001-09-20 | 2003-04-02 | Juki Corp | Buttonhole sewing machine |
-
2008
- 2008-10-03 JP JP2008258540A patent/JP2010088493A/en active Pending
-
2009
- 2009-09-29 CN CN2009101801218A patent/CN101713130B/en active Active
- 2009-09-30 KR KR1020090092962A patent/KR20100038150A/en not_active Application Discontinuation
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105316875A (en) * | 2014-08-04 | 2016-02-10 | Juki株式会社 | Sewing machine |
| CN105386242A (en) * | 2014-08-29 | 2016-03-09 | Juki株式会社 | Hole serging machine |
| CN105386242B (en) * | 2014-08-29 | 2019-06-28 | Juki株式会社 | Hole catch sewing machine |
| CN104294486A (en) * | 2014-09-30 | 2015-01-21 | 浙江理工大学 | Device and method for detecting pressure of presser foot of sewing machine |
| CN106544790A (en) * | 2015-09-16 | 2017-03-29 | Juki株式会社 | The presser feet lifting mechanism of sewing machine |
| CN105463711B (en) * | 2015-12-25 | 2018-10-30 | 杰克缝纫机股份有限公司 | Industrial sewing machine presser foot lifter electromagnet closed-loop control device and control method |
| CN105463711A (en) * | 2015-12-25 | 2016-04-06 | 杰克缝纫机股份有限公司 | Presser foot lifting electromagnet closed-loop control device for industrial sewing machine and control method |
| CN105696207B (en) * | 2016-05-06 | 2018-10-19 | 浙江众邦机电科技有限公司 | The presser foot lifter control method of sewing machine |
| CN105696207A (en) * | 2016-05-06 | 2016-06-22 | 浙江众邦机电科技有限公司 | Lifting control method for presser foot of sewing machine |
| CN109023737A (en) * | 2018-10-17 | 2018-12-18 | 浙江众邦机电科技有限公司 | A kind of the presser foot lifter control system and method for flush joint thickness material machine |
| CN109652927A (en) * | 2018-12-29 | 2019-04-19 | 杰克缝纫机股份有限公司 | Presser feet control method, device, computer equipment and storage medium |
| CN109652927B (en) * | 2018-12-29 | 2021-05-04 | 杰克缝纫机股份有限公司 | Presser foot control method and device, computer equipment and storage medium |
| CN109706632A (en) * | 2019-03-08 | 2019-05-03 | 杰克缝纫机股份有限公司 | A kind of control method of sewing-machine automatic needle-foot-lifting |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20100038150A (en) | 2010-04-13 |
| CN101713130B (en) | 2013-03-27 |
| JP2010088493A (en) | 2010-04-22 |
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