CN109371586A - Sewing machine and its adjustment cord reeling method for sewing thin and thick adjust automatically take-up - Google Patents
Sewing machine and its adjustment cord reeling method for sewing thin and thick adjust automatically take-up Download PDFInfo
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- CN109371586A CN109371586A CN201811527329.8A CN201811527329A CN109371586A CN 109371586 A CN109371586 A CN 109371586A CN 201811527329 A CN201811527329 A CN 201811527329A CN 109371586 A CN109371586 A CN 109371586A
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
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Abstract
The present invention provides a kind of sewing machine for sewing thin and thick adjust automatically take-up and adjustment cord reeling method comprising: sewing Thickness sensitivity component, for detecting sewing thickness, sewing Thickness sensitivity component includes detection sensor；Yarn taking-up mechanism, including thread take-up tension lever, link assembly and the actuator of fixed setting, thread take-up tension lever is bending member and bending place rotation setting, one end of thread take-up tension lever is equipped with cable-through hole, one end of link assembly is connected with actuator, the other end of link assembly is connected with the other end of thread take-up tension lever, and actuator drive link component reciprocally swinging makes the cable-through hole of thread take-up tension lever be in minimum point or be at the highest notch；Controller, actuator and detection sensor are connected with controller.The present invention changes the take-up moment when the cable-through hole stroke of thread take-up tension lever is constant by the actuation time of control actuator, it is made to adjust take-up in real time with sewing thickness.
Description
Technical field
The present invention relates to technical field of sewing machines, more particularly to the Yarn taking-up mechanism and sewing machine of a kind of use in sewing machine.
Background technique
Sewing machine is exactly the machine for being sutured sewing by suture, including needle bar mechanism, Yarn taking-up mechanism, feeding mechanism, hook
Line mechanism, hold-down mechanism and wire-clamping device etc..Take-up Guo Xian mechanism be exactly by the coil of wire suture guidance be transported in suture needle, and
Needle bar mechanism is cooperated to carry out the feeding of suture.
Existing sewing machine, head 1 are equipped with Yarn taking-up mechanism, and as shown in Fig. 1 and Fig. 2, Yarn taking-up mechanism is generally comprised: take-up
Bar 30 and thread take-up crank 40 are provided with cable-through hole 301 on thread take-up tension lever 30, pass through in cable-through hole 301 for suture, line-choosing connecting rod
20 one end is rotatably hinged on casing, and the other end and thread take-up tension lever 30 of line-choosing connecting rod 20 are hinged, thread take-up tension lever 30
One end is rotatably hinged on thread take-up crank 40, and thread take-up crank 40 is fixed on machine spindle 10.Sewing machine is logical
It crosses thread take-up crank 40 and makees rotary motion under the drive of machine spindle 10, thread take-up crank 40 drives thread take-up tension lever 30 to move, i.e.,
String holes 301 moves in space, as shown in Fig. 3, Fig. 4, when t1 is that highest point of the cable-through hole 301 during take-up is corresponding
It carves, at the time of t2 is that minimum point of the cable-through hole 301 during take-up corresponds to, H is the movement travel, that is, take-up row in take-up hole 301
Journey, i.e. the Z coordinate difference in height of highs and lows.In existing sewing machine, t1, t2, H by Yarn taking-up mechanism itself knot
Structure size determines, unadjustable.
Since in existing sewing machine, the dimensional parameters of Yarn taking-up mechanism are definite value, thus the take-up moment difficult to realize and
The adjusting of take-up lever stroke, and its sewing that can not adapt to different-thickness sewing, therefore, it is necessary to a kind of take-ups at adjustable take-up moment
Mechanism.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide one kind adjusts automatically for sewing thin and thick
The sewing machine and adjust automatically cord reeling method of whole take-up, the Yarn taking-up mechanism for solving sewing machine in the prior art can not adapt to cloth
The problem of expecting thin and thick.
In order to achieve the above objects and other related objects, the present invention provides a kind of for sewing thin and thick adjust automatically take-up
Sewing machine comprising:
Sewing Thickness sensitivity component, for detecting sewing thickness, sewing Thickness sensitivity component includes detection sensor；
Yarn taking-up mechanism, including thread take-up tension lever, link assembly and the actuator of fixed setting, thread take-up tension lever is bending member and curved
Setting is rotated at folding, one end of thread take-up tension lever is equipped with cable-through hole, and one end of the link assembly is connected with the actuator, connection rod set
The other end of part is connected with the other end of the thread take-up tension lever, and actuator drive link component reciprocally swinging makes the thread take-up tension lever
Cable-through hole is in minimum point or is at the highest notch；
Controller, the actuator and detection sensor are connected with controller.
Preferably, the actuator drive link component reciprocally swinging, makes the link assembly at three kinds of states, the first shape
State and the second state are symmetrically positioned in third state two sides, and the third state is in line state, first state and the second state difference
The cable-through hole of the thread take-up tension lever is set to be at the highest notch, the third state makes the cable-through hole of thread take-up tension lever be in minimum point.
Preferably, actuator drive link component reciprocally swinging between two states, first state make the take-up
The cable-through hole of bar is in minimum point, and second state makes the cable-through hole of thread take-up tension lever be at the highest notch.
Preferably, shown link assembly includes the first connecting rod and second connecting rod being hinged, first connecting rod and the driving
Part is connected, and the other end of second connecting rod and the thread take-up tension lever is hinged.
Preferably, the actuator is rotating electric machine.
Preferably, the rotating electric machine under the control of the controller, keeps the swing angle of the link assembly adjustable, with this
Change the cable-through hole stroke of the thread take-up tension lever.
Preferably, the rotating electric machine under the control of the controller, is rotatably assorted with machine spindle, in the thread take-up tension lever
Cable-through hole stroke it is constant when change the take-up moment.
Preferably, the detection sensor includes the detection piece of the detected member being placed on presser bar and fixed setting,
Detection piece and detected member cooperation, the axial movement distance for detecting presser bar, the axial movement distance of presser bar are characterized as
Sewing thickness, the detection piece are connected with the controller.
Preferably, the detected member is mounted on presser bar by fixing seat, and the detection piece is fixed on sewing machine
On casing.
Preferably, the top of the presser bar is equipped with compressed spring, and the detection sensor is for detecting the compression bullet
The deformation quantity of spring, the deformation quantity of the compressed spring are characterized as sewing thickness.
The present invention also provides a kind of adjustment cord reeling methods of sewing machine comprising:
Sewing thickness set is preset in controller, includes multiple thickness collection in sewing thickness set, in each thickness collection
Thickness section it is different；
Sewing Thickness sensitivity component real-time detection sewing thickness and feed back to the controller；
Current sewing thickness judges which thickness collection current sewing is in the controller based on the received, according to current
Thickness collection makes actuator execute normal sewing strategy, the sewing of take-up in advance strategy or delay take-up strategy.
Preferably, by controlling the actuation time of the actuator, make and the machine spindle rotational angle in sewing machine
Cooperation realizes the sewing of take-up in advance strategy or delay take-up strategy with this.
Preferably, the sewing of the take-up in advance strategy are as follows: control the actuator actuation time than the normal sewing plan
The actuation time of actuator described in slightly shifts to an earlier date.
Preferably, the delay take-up sewing strategy are as follows: control the actuator actuation time than the normal sewing plan
The actuation time delay of actuator described in slightly.
As described above, the sewing machine and its adjustment cord reeling method for sewing thin and thick adjust automatically take-up of the invention, tool
Have following the utility model has the advantages that it can adjust the actuation time of actuator when the cable-through hole stroke of the thread take-up tension lever is constant, make its with
Machine spindle, which is rotatably assorted, changes the take-up moment, it is made to adjust take-up in real time with sewing thickness, reaches preferably sewing effect
Fruit.
Detailed description of the invention
Fig. 1 is shown as sewing machine Yarn taking-up mechanism schematic diagram in the prior art.
Fig. 2 is shown as the schematic diagram of sewing machine Yarn taking-up mechanism in the prior art.
Fig. 3 is shown as the cable-through hole trajectory diagram of thread take-up tension lever in the prior art.
Fig. 4 is shown as cable-through hole track and the machine spindle angle relation figure of thread take-up tension lever in the prior art.
Fig. 5 is shown as an implementation example figure of the sewing machine for sewing thin and thick adjust automatically take-up of the invention.
Fig. 6 is shown as the first state figure of the Yarn taking-up mechanism in embodiment illustrated in fig. 5.
Fig. 7 is shown as the second state diagram of the Yarn taking-up mechanism in embodiment illustrated in fig. 5.
Fig. 8 is shown as cable-through hole track and the machine spindle angle relation figure of thread take-up tension lever of the invention.
Fig. 9 is shown as suture effect picture when thread take-up tension lever take-up of the invention is advanced or delayed.
Figure 10 is shown as the take-up lever stroke and machine spindle angle relation figure of thread take-up tension lever of the invention.
Figure 11 is shown as sewing Thickness sensitivity component diagram of the invention.
Figure 12 is shown as sewing Thickness sensitivity state diagram of the invention.
Figure 13 is shown as sewing thickness and sewing time chart of the invention.
Figure 14 is shown as another implementation example figure of the sewing machine for sewing thin and thick adjust automatically take-up of the invention.
Figure 15 is shown as the first state figure of the Yarn taking-up mechanism in embodiment illustrated in fig. 14.
Figure 16 is shown as the second state diagram of the Yarn taking-up mechanism in embodiment illustrated in fig. 14.
Figure 17 is shown as the third state figure of the Yarn taking-up mechanism in embodiment illustrated in fig. 14.
Component label instructions
1 head
2 actuators
3 first connecting rods
4 second connecting rods
5 thread take-up tension levers
51 cable-through holes
6 feed dogs
7 axle sleeves
8 presser feets
9 needle plates
10 machine spindles
11 presser bars
12 compressed springs
20 line-choosing connecting rods
30 thread take-up tension levers
301 cable-through holes
40 thread take-up cranks
100 detection sensors
101 detected members
102 detection pieces
103 attachment bases
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
Fig. 1 is please referred to Figure 17.It should be clear that structure, ratio, size etc. depicted in this specification institute attached drawing, are only used
To cooperate the revealed content of specification, so that those skilled in the art understands and reads, being not intended to limit the invention can
The qualifications of implementation, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, it should all still fall in disclosed skill
In the range of art content can cover.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " centre " and
The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness
It is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
As shown in Fig. 5 to Figure 17, the present invention provides a kind of sewing machine for sewing thin and thick adjust automatically take-up, packet
It includes:
Sewing Thickness sensitivity component, for detecting sewing thickness, sewing Thickness sensitivity component includes detection sensor 100；
Yarn taking-up mechanism, including thread take-up tension lever 5, link assembly and the actuator of fixed setting 2, thread take-up tension lever 5 be bending member and
Bending place rotation setting, one end of thread take-up tension lever 5 are equipped with cable-through hole 51, and one end of the link assembly is connected with the actuator 2,
The other end of link assembly is connected with the other end of the thread take-up tension lever 5,2 drive link component reciprocally swinging of actuator, makes described
The cable-through hole 51 of thread take-up tension lever 5 is in minimum point or is at the highest notch；
Controller (is unillustrated), and the actuator 2 and detection sensor 100 are connected with controller.
It further includes the other function component in common sewing machine for sewing machine in the present invention, as being equipped with sewing in head 1
Owner's axis and the cloth feeding mechanism being connected with machine spindle (machine spindle 10 i.e. in background technique), presser feet and lift pressure
Foot mechanism etc., the movement of feed dog 6 in cloth feeding mechanism realize the advance of sewing, sewing machine are made to complete sewing, i.e. the present embodiment
Basic system needed for sewing machine has sewing, is not described in detail here.The present invention is set by thread take-up tension lever 5 and link assembly
Meter, actuator 2 can make link assembly reciprocally swinging, and realize when the cable-through hole stroke of the thread take-up tension lever is constant and sew owner
Axis rotatable engagement changes the take-up moment, adapts it to the sewing of thickness sewing, and can adjust take-up amount according to rotating shuttle difference.
Link assembly includes the first connecting rod 3 and second connecting rod 4 being hinged, first connecting rod 3 and the drive in the present embodiment
Moving part 2 is connected, and second connecting rod 4 and the other end of the thread take-up tension lever 5 are hinged.Link assembly in the present embodiment is two hinged
Connected connecting rod, structure is simple, easy to use, in addition, thread take-up tension lever 5 is bending member, bending place rotation setting, second connecting rod 4
It is connected with the other end of the thread take-up tension lever 5, is rotated convenient for driving thread take-up tension lever 5, two hinged connecting rods can be convenient for the peace of actuator 2
Installing is set, and is mounted in the head of sewing machine convenient for actuator 2.
Above-mentioned actuator 2 is rotating electric machine in the present embodiment.The present embodiment controls the pendulum of first connecting rod 3 by rotating electric machine
Dynamic angle and duration of oscillation, so with being rotatably assorted of machine spindle, to control the highest point of cable-through hole on thread take-up tension lever 5 when
Carve t1, minimum point moment t2 and take-up lever stroke H.
The pass in the present embodiment on thread take-up tension lever between the track and moment, actuator swing angle of cable-through hole is made a concrete analysis of below
System:
Actuator 2 is rotating electric machine in the present embodiment, is connected with above controller (being unillustrated), in the control of controller
Under system, keep the swing angle of link assembly adjustable, the cable-through hole stroke of thread take-up tension lever 5 can be changed with this；Machine spindle 10 drives
Cloth feeding mechanism realizes the advance of sewing, matches between the actuation time and the swing angle of machine spindle 10 of actuator 2, constitutes
The cable-through hole stroke of thread take-up tension lever 5 and the pendulum of machine spindle 10 can be changed by changing relative timing in relative timing between the two
The change take-up moment when the cable-through hole stroke of the thread take-up tension lever 5 is constant can be realized in relationship between dynamic angle.
The swing angle that first connecting rod 3 is controlled by rotating electric machine may be implemented guaranteeing the constant situation of take-up lever stroke H
The take-up moment order in advance or delay, it indicates thread take-up tension lever cable-through hole stroke and machine spindle angle relation as shown in Figure 8
Scheme, its corner for corresponding to machine spindle of t1 is at 70 ° or so at the time of cable-through hole is at highest point in a2 line, and cable-through hole is minimum
Its corner for corresponding to machine spindle of t2 is at 295 ° or so at the time of when point, cable-through hole stroke and seam when a2 line represents normal sewing
It threads owner's Shaft angle relation curve；In a1 line, its corner for corresponding to main shaft of t1 is on 90 ° of left sides at the time of cable-through hole is at highest point
The right side, for its corner for corresponding to machine spindle of t2 at 315 ° or so, a1 line represents delay sewing at the time of cable-through hole is in minimum point
When cable-through hole stroke and machine spindle angle relation curve, cable-through hole postpones to arrive highest after a certain period of time compared with a2 line
Point and minimum point, even become a1 threadiness state from a2 threadiness state, only need to make the actuation time of actuator 2 with respect to a2 line when one section of evening
Time starts；In a3 line, at the time of cable-through hole is at highest point t1 its correspond to machine spindle corner at 45 ° or so,
For its corner for corresponding to machine spindle of t2 at 280 ° or so, a3 line represents mistake when sewing in advance at the time of cable-through hole is in minimum point
String holes stroke and machine spindle angle relation curve, with a2 line compared with cable-through hole shift to an earlier date certain time reach highest point with
Minimum point even becomes a3 threadiness state from a2 threadiness state, need to only make the actuation time of actuator 2 with respect to a2 line when mentioning the last period
Between start.It can be seen that rotating electric machine (i.e. actuator 2) is under the control of the controller, make the duration of oscillation of link assembly
Relative timing between the rotational angle of machine spindle 10 is adjustable, that is, realize the thread take-up tension lever 5 cable-through hole stroke not
Change the take-up moment when change.
The present embodiment analyzes the thread take-up tension lever take-up time with sewing thread trace, as shown in Figure 9, curve with the arrow in figure
For suture；When shifting to an earlier date (the thread take-up tension lever take-up shown on the left of Fig. 9 shifts to an earlier date) at the take-up moment, thread take-up tension lever 5 starts when take-up suture not
It is clamped by sewing and needle plate, the resistance of 5 take-up of thread take-up tension lever is small, makes suture be easier to tighten, the fabric for being suitble to thickness thicker；Work as take-up
When moment delay (i.e. the thread take-up tension lever take-up delay shown on the right side of Fig. 9), thread take-up tension lever 5 starts when take-up part suture by sewing
It is clamped with needle plate, so that the resistance of 5 take-up of thread take-up tension lever is become larger, suture is caused to be not easy to tighten, be suitble to thinner thickness, be easy corrugated seam
Material.Therefore, in use, delay (can be adjusted and adopt sewing machine at the time of being suitble to when sewing relatively thin sewing by take-up
With above-mentioned a1 line), and be suitble to when sewing thicker sewing by take-up at the time of, shifts to an earlier date and (can be adjusted using above-mentioned a3 line), with
Reach optimal sewing thread trace.Therefore, the Yarn taking-up mechanism of the present embodiment can be used to be regulated and controled to be directed to the thin and thick of sewing, adjust
Control it is easy to accomplish, only the actuation time of actuator 2 need to be adjusted, actuation time delay (such as a1 line) i.e. realization take-up
The delay of 5 take-up of bar, actuation time shift to an earlier date (such as a3 line) and realize shifting to an earlier date for thread take-up tension lever take-up.
It therefore, can be in real time to sewing by the detection sensor 100 in above-mentioned sewing Thickness sensitivity component in the present embodiment
Detected, controller according to current sewing thickness value to determine whether need take-up in advance or delay take-up, controlled with this
Actuator processed executes.
The present embodiment can also adjust the swing angle of link assembly under the control of the controller, change the thread take-up tension lever 5
Cable-through hole stroke.See that Figure 10 indicates thread take-up tension lever cable-through hole stroke and machine spindle angle relation figure, indicates thread take-up tension lever 5 in l2 line
Stroke height of cable-through hole stroke H when being normal sewing；The cable-through hole stroke that thread take-up tension lever 5 is indicated in l1 line is greater than normal seam
Cable-through hole stroke H when processed；Cable-through hole stroke H when the cable-through hole stroke for indicating thread take-up tension lever 5 in l3 line is less than normal sewing.
Each curve finds out that the actuation time of actuator in the present embodiment is unchanged in Figure 10, i.e. cable-through hole stroke in l1 line, l2 line and l3 line
Consistent at the time of peaking with minimum point, the actuation time of actuator 2 is in the same rotation of machine spindle in three lines
At angle, the swing angle of link assembly is only changed；Present embodiment ensure that take-up moment constant (the i.e. movement of actuator
Time and the matching timing that machine spindle rotates are constant) the case where the take-up lever stroke H that orders become larger or become smaller, to adapt to difference
The rotating shuttle of line amount demand.
The specific structure of each component is detailed below.
The embodiment one of Yarn taking-up mechanism
The Yarn taking-up mechanism of the present embodiment includes: above-mentioned thread take-up tension lever 5, the connection rod set including first connecting rod 2 and second connecting rod 4
Part and the actuator 2 of fixed setting, first connecting rod 3 are connected with actuator 2, the other end phase of second connecting rod 4 and thread take-up tension lever 5
Hingedly；During actuator 2 (the present embodiment is rotating electric machine) driving thread take-up tension lever 5 is swung, when first connecting rod 3 and second connect
When bar 4 is in the second state, i.e. when upper limit position in Fig. 6, the cable-through hole 51 of thread take-up tension lever 5 is at the highest notch, and subsequent first
Connecting rod 3 is to lower swing, and with second connecting rod 4 at first state, as shown in Figure 7, the cable-through hole 51 of thread take-up tension lever 5 is in minimum point, with
3 counteragent of first connecting rod afterwards, and so on.The present embodiment controls the swing angle and pendulum of first connecting rod 3 by actuator 2
The dynamic time, so with being rotatably assorted of machine spindle, the highest point moment t1 to control cable-through hole on thread take-up tension lever 5, minimum point
Moment t2 and take-up lever stroke H.
I.e. actuator 2 can drive above-mentioned first connecting rod 3 to put between first state and the second state under the control of the controller
It is dynamic, and the relative timing between the duration of oscillation of controllable first connecting rod 3 and the rotational angle of machine spindle 10 is adjustable, that is, realizes
Change the take-up moment when the cable-through hole stroke of the thread take-up tension lever 5 is constant, take-up in advance and delay take-up are realized with this.
The embodiment two of Yarn taking-up mechanism
The Yarn taking-up mechanism of the present embodiment is identical as one structure of embodiment, the difference is that: as shown in Figure 14, above-mentioned driving
The fixation position of part 2.The present embodiment makes above-mentioned link assembly that can form three kinds of states by adjusting the fixation position of actuator 2,
First state (as shown in Figure 15) and the second state (as shown in Figure 16) are symmetrically positioned in the third state (as shown in Figure 17) two sides, and
The third state is in line state (as shown in Figure 17), and first state and the second state make the cable-through hole 51 of the thread take-up tension lever 5 respectively
It is at the highest notch, the third state makes the cable-through hole 51 of thread take-up tension lever 5 be in minimum point.The present embodiment is being able to achieve thread take-up tension lever 5
Cable-through hole stroke it is constant when change the take-up moment, with this realize take-up in advance and delay take-up on the basis of, also pass through drive
The position of moving part 2 is arranged, and link assembly is made actuator 2 can be made to rotate primary above-mentioned take-up in linear state two sides reciprocally swinging
The cable-through hole 51 of bar 5 can be at the highest notch twice, reduce the rotational frequency of actuator 2, can if actuator 2 is rotating electric machine
Reduce the load of itself；If actuator 2 is drive magnet component, it can be improved and swings efficiency.
Sewing Thickness sensitivity component
The foot lifting mechanism of the present embodiment sewing machine, as shown in Fig. 5 and Figure 11 comprising: presser bar 11；Presser bar 11 is worn
It is located in the axle sleeve 7 being fixed on casing, the end of presser bar 11 is connected with presser feet 8, is needle plate 9, needle plate in the lower section of presser feet 8
9 lower section is feed dog 6, space of the sewing between needle plate 9 and presser feet 8 pass through, therefore the thickness effect presser feet 8 of sewing is lifted
Highly, i.e., it is related with the axial distance of presser bar 11.The axial movement distance of detection presser bar 11 can be passed through in the present embodiment
To feed back the real-time thickness of sewing.
The present embodiment directly detects the movement of presser foot lifter bar 11 by above-mentioned detection sensor 100, as shown in Figure 11, detection
Sensor 100 includes the detection piece 102 of the detected member 101 that is placed on presser bar 11 and fixed setting, detection piece 102 with
The cooperation of detected member 101, the axial movement distance for detecting presser bar 11, the axial movement distance of presser bar 11 are characterized as stitching
Expect that thickness, the detection piece 102 are connected with the controller.
It is fixed with attachment base 103 on presser bar 11, above-mentioned detected member 101, detection piece 102 are provided on attachment base 103
It is fixed on casing and close with detected member 101；Detection piece 102 and detected member 101 may respectively be Hall sensor and magnetic
Iron.When detected member 101 is moved up and down with presser bar 11, the height of 102 energy real-time monitoring detected member 101 of detection piece becomes
Change.When work, sewing is placed between presser feet 8 and needle plate 9, after feed dog 6 starts work feed, as shown in Figure 12, the height h of presser feet 8
Change with the up and down action of feed dog 6, i.e., the 8 height h of real-time presser feet that detected member 101 monitors is variable, 8 height h of presser feet
Change curve about time T is as shown in figure 13, therefore the present embodiment is characterized by 8 height h of examinations presser feet variation with this
For the thickness change of sewing.
As shown in Figure 13, wherein h0 is sewing thickness, and h is the height in real time of presser feet 8, and hmax is the maximum value of h, works as work feed
When tooth 6 is below needle plate 9, h=h0；When feed dog 6 is above needle plate 9, h changes with the height change of feed dog 6, therefore
The 8 height h of presser feet of real-time monitoring need to by filtering processing, will partial filtration caused by by 6 height change of feed dog, identify sewing
Actual (real) thickness h0.
The top of presser bar 11 is provided with compressed spring 12 in the present embodiment, and detection sensor 100 can be used for detecting described
The deformation quantity of the deformation quantity of compressed spring 12, the compressed spring 12 is characterized as sewing thickness.Presser bar 11 exists in the present embodiment
Presser foot lifter and sewing compress above-mentioned compressed spring 12 in advancing, therefore can be by the deformation quantity of detection compressed spring 12, to examine
The real-time thickness of joint measurement material.
Above-mentioned sewing Thickness sensitivity component is without being limited thereto, only needs in real time to go out the sewing Thickness sensitivity at presser feet i.e.
Can, such as it can be the sensor being mounted at needle plate.
The present invention also provides a kind of methods of sewing machine adjust automatically take-up, and above-mentioned sewing machine can be used to realize, i.e.,
It may include above-mentioned sewing Thickness sensitivity component and above-mentioned Yarn taking-up mechanism comprising following steps:
Sewing thickness set is preset in controller, includes multiple thickness collection in sewing thickness set, in each thickness collection
Thickness section it is different；
Sewing Thickness sensitivity component real-time detection sewing thickness and feed back to the controller；
Current sewing thickness judges which thickness collection current sewing is in the controller based on the received, according to current
Thickness collection makes actuator execute normal sewing strategy, the sewing of take-up in advance strategy or delay take-up strategy.
The present invention uses sewing Thickness sensitivity component real-time detection sewing thickness, and controller learns it according to current thickness collection
In the thickness range for still postponing take-up for take-up need to be shifted to an earlier date, above-mentioned actuator is then driven to execute normal sewing strategy, shift to an earlier date
Take-up sewing strategy or delay take-up strategy can adjust in real time take-up strategy according to sewing real-time thickness, improve sewing effect
Fruit.
Specifically, according to the specific size of sewing thickness h 0 in the present embodiment, if sewing can be divided into dry thickness collection:
[h0 (1): h0 (2)], [h0 (2): h0 (3)] ... [h0 (n-1): h0 (n)]；Each thickness collection can be considered one grade.When being monitored
H0 numerical value fall in different gear sections, as described in Fig. 8, actuation time of above-mentioned actuator 2 can adjust automatically to choose
The Z-direction displacement curve of line bar cable-through hole, which moves to left, perhaps moves to right that i.e. the take-up moment is in advance or delay, different thickness collection are corresponding
Different shifts to an earlier date or postpones phase difference, cable-through hole stroke and machine spindle corner pass when a2 line represents normal sewing in Fig. 8
It is curve, corresponds to thickness collection (h0 (k): h0 (k+1)), cable-through hole stroke and machine spindle turns when a1 line represents delay sewing
Angular dependence curve corresponds to thickness collection (h0 (k+1): h0 (k+2))；A3 line represents cable-through hole stroke and sewing machine when sewing in advance
Angle of eccentricity relation curve corresponds to thickness collection (h0 (k-1): h0 (k))；Judge which it is in for current sewing thickness value
Thickness collection learns which kind of sewing strategy it corresponds to this, specially normal sewing strategy, in advance sewing strategy or delay sewing
Strategy.
Above-mentioned normal sewing strategy, in advance sewing strategy or delay sewing strategy are realized in the present embodiment, it is mainly logical
The actuation time for controlling above-mentioned actuator 2 is spent, when making to cooperate with the machine spindle rotational angle in sewing machine, change take-up
It carves, i.e., adjusts the phase difference size shifted to an earlier date or postpone at take-up moment immediately according to sewing thickness, keep take-up effect best.Its
In, the sewing strategy of take-up in advance are as follows: control 2 actuation time of actuator mentions than normally sewing the actuation time of actuator 2 in strategy
Previous timing sequence；Postpone take-up sewing strategy are as follows: control 2 actuation time of actuator than described in the normal sewing strategy
The actuation time of actuator 2 postpones certain timing；Specific regulation timing values can be set by thickness collection, i.e., different thickness
It is worth a corresponding timing values namely a corresponding phase difference.
In conclusion the present invention passes through for the sewing machine and its adjustment cord reeling method of sewing thin and thick adjust automatically take-up
The design of sewing Thickness sensitivity component and Yarn taking-up mechanism changes the take-up moment when the cable-through hole stroke of thread take-up tension lever is constant, makes
It changes the take-up moment according to sewing thickness, reaches adjusting take-up.So the present invention effectively overcomes in the prior art kind
It plants disadvantage and has high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (14)
1. a kind of sewing machine for sewing thin and thick adjust automatically take-up characterized by comprising
Sewing Thickness sensitivity component, for detecting sewing thickness, sewing Thickness sensitivity component includes detection sensor；
Yarn taking-up mechanism, including thread take-up tension lever, link assembly and the actuator of fixed setting, thread take-up tension lever is bending member and bending place
One end of rotation setting, thread take-up tension lever is equipped with cable-through hole, and one end of the link assembly is connected with the actuator, link assembly
The other end is connected with the other end of the thread take-up tension lever, actuator drive link component reciprocally swinging, and make the thread take-up tension lever crosses line
Hole is in minimum point or is at the highest notch；
Controller, the actuator and detection sensor are connected with controller.
2. the sewing machine according to claim 1 for sewing thin and thick adjust automatically take-up, it is characterised in that: the driving
Part drive link component reciprocally swinging makes the link assembly be symmetrically positioned at three kinds of states, first state and the second state
Three condition two sides, and the third state is in line state, first state and the second state make respectively at the cable-through hole of the thread take-up tension lever
In highest point, the third state makes the cable-through hole of thread take-up tension lever be in minimum point.
3. the sewing machine according to claim 1 for sewing thin and thick adjust automatically take-up, it is characterised in that: the driving
Part drive link component reciprocally swinging between two states, first state make the cable-through hole of the thread take-up tension lever be in minimum point, institute
Stating the second state makes the cable-through hole of thread take-up tension lever be at the highest notch.
4. being existed according to claim 2 or the sewing machine as claimed in claim 3 for sewing thin and thick adjust automatically take-up, feature
In: shown link assembly includes the first connecting rod and second connecting rod being hinged, and first connecting rod is connected with the actuator, and second connects
The other end of bar and the thread take-up tension lever is hinged.
5. the sewing machine according to claim 1 for sewing thin and thick adjust automatically take-up, it is characterised in that: the driving
Part is rotating electric machine.
6. the sewing machine according to claim 5 for sewing thin and thick adjust automatically take-up, it is characterised in that: the rotation
Motor under the control of the controller, keeps the swing angle of the link assembly adjustable, changes the cable-through hole of the thread take-up tension lever with this
Stroke.
7. the sewing machine according to claim 5 for sewing thin and thick adjust automatically take-up, it is characterised in that: the rotation
Motor under the control of the controller, is rotatably assorted with machine spindle, changes when the cable-through hole stroke of the thread take-up tension lever is constant
The take-up moment.
8. the sewing machine according to claim 1 for sewing thin and thick adjust automatically take-up, it is characterised in that: the detection
Sensor includes the detection piece of the detected member being placed on presser bar and fixed setting, and detection piece and detected member cooperation are used
In the axial movement distance of detection presser bar, the axial movement distance of presser bar is characterized as sewing thickness, the detection piece and institute
Controller is stated to be connected.
9. the sewing machine according to claim 8 for sewing thin and thick adjust automatically take-up, it is characterised in that: described tested
It surveys part to be mounted on presser bar by fixing seat, the detection piece is fixed on the casing of sewing machine.
10. the sewing machine according to claim 1 for sewing thin and thick adjust automatically take-up, it is characterised in that: the pressure
The top of foot lever is equipped with compressed spring, and the detection sensor is used to detect the deformation quantity of the compressed spring, the compression bullet
The deformation quantity of spring is characterized as sewing thickness.
11. a kind of adjustment cord reeling method of sewing machine characterized by comprising
Sewing thickness set is preset in controller, includes multiple thickness collection in sewing thickness set, the thickness in each thickness collection
It is different to spend section；
Sewing Thickness sensitivity component real-time detection sewing thickness and feed back to the controller；
Current sewing thickness judges which thickness collection current sewing is in the controller based on the received, according to current thickness
Collection makes actuator execute normal sewing strategy, the sewing of take-up in advance strategy or delay take-up strategy.
12. the adjustment cord reeling method of sewing machine according to claim 11, it is characterised in that: by controlling the actuator
Actuation time, make in sewing machine machine spindle rotational angle cooperate, with this realize take-up in advance sewing strategy or prolong
Slow take-up strategy.
13. the adjustment cord reeling method of sewing machine described in claim 11, it is characterised in that: the sewing of the take-up in advance strategy
Are as follows: the actuation time for controlling the actuator actuation time than actuator described in the normal sewing strategy shifts to an earlier date.
14. the adjustment cord reeling method of sewing machine described in claim 11, it is characterised in that: the delay take-up sewing strategy
Are as follows: control actuation time delay of the actuator actuation time than actuator described in the normal sewing strategy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811527329.8A CN109371586B (en) | 2018-12-13 | 2018-12-13 | Sewing machine capable of automatically adjusting take-up according to thickness of sewing material and take-up adjusting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811527329.8A CN109371586B (en) | 2018-12-13 | 2018-12-13 | Sewing machine capable of automatically adjusting take-up according to thickness of sewing material and take-up adjusting method thereof |
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| CN109371586A true CN109371586A (en) | 2019-02-22 |
| CN109371586B CN109371586B (en) | 2021-06-04 |
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| CN201811527329.8A Active CN109371586B (en) | 2018-12-13 | 2018-12-13 | Sewing machine capable of automatically adjusting take-up according to thickness of sewing material and take-up adjusting method thereof |
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| CN111979647A (en) * | 2019-05-23 | 2020-11-24 | 高林股份有限公司 | Sewing machine with automatic control mechanism and automatic control method thereof |
| CN112941750A (en) * | 2021-01-27 | 2021-06-11 | 马秀珍 | Thread feeding mechanism and embroidery machine |
| CN113026230A (en) * | 2021-03-19 | 2021-06-25 | 北京大豪工缝智控科技有限公司 | Sewing machine thread take-up device and sewing machine thread take-up control method |
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| CN113026230A (en) * | 2021-03-19 | 2021-06-25 | 北京大豪工缝智控科技有限公司 | Sewing machine thread take-up device and sewing machine thread take-up control method |
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| CN109371586B (en) | 2021-06-04 |
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Address after: 318010 No. 1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |