CN104120560A - Control method for sewing machine - Google Patents
Control method for sewing machine Download PDFInfo
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- CN104120560A CN104120560A CN201310143323.1A CN201310143323A CN104120560A CN 104120560 A CN104120560 A CN 104120560A CN 201310143323 A CN201310143323 A CN 201310143323A CN 104120560 A CN104120560 A CN 104120560A
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Abstract
The invention provides a control method for a sewing machine. Cost increase is restrained, meanwhile, sewing operation of a second stitch and a top thread end behind the second stitch can be avoided, and therefore good sewing quality is achieved. The sewing machine is provided with a needle rod, a kettle, a maintaining device and a control part. The needle rod is used for maintaining and lifting a sewing needle with a top thread penetrating through a needle hole so as to insert the sewing needle into a sewn object and make the top thread penetrate through the back side of the sewn object. The kettle is arranged below the sewn object and swings in linkage with lifting motion of the needle rod so that the top thread penetrating through the back side of the sewn object can be captured through the point end. The maintaining device is used for maintaining the top thread on a top thread path between a balance scale and the sewing needle, so that movement of the top thread is limited. In the second stitch conducted by the sewing needle on the sewn object and after the top thread is captured by the point end of the kettle, the control part makes the maintaining device conducting driving, and therefore movement of the top thread is limited within schedule time.
Description
Technical field
The present invention relates to a kind of control method of the Sewing machines of making on the sewn objects such as cloth.
Background technology
In existing Sewing machines, there is following problem: when making on sewn object, in making the 1st pin of beginning, reach the standard grade and be drawn into the rear side to sewn object, the end of reaching the standard grade of rear side that remains in this sewn object is elongated, makes sewn object not attractive in appearance in appearance.In order to solve this problem, known a kind of Sewing machines, it has to shorten draws in the line pulling off device of reaching the standard grade (for example,, with reference to patent documentation 1) to the rear side of sewn object when making beginning.
As shown in Figure 8, this Sewing machines has needle bar 107, and the mode that this needle bar 107 has to run through a sewn object guides 109 the suture needle 108 of reaching the standard grade, and suture needle 108 is driven in the mode moving up and down, this Sewing machines has: still 110, and it forms middle hook at stitching and reaches the standard grade 109; Line Libra 118, it picks up 109 the wire loop of reaching the standard grade; The clamping part 114 of reaching the standard grade, it is arranged on suture needle 108 to the upper thread path between line Libra 118; And the adjusting device 121 of reaching the standard grade, during state that it moves at the upper thread path that utilizes the line supply side compare with line Libra 118, to 109 line tensions that apply regulation of reaching the standard grade.And, on online Libra 118 and the upper thread path of reaching the standard grade between adjusting device 121, there is line pulling off device 124.
In above-mentioned Sewing machines, line end pull back the rear side from sewn object of making beginning being extended by line pulling off device 124 and line Libra 118 are raised, thus, can shorten in making the 1st pin of beginning and draw in to the upper line end of the rear side of sewn object.
Patent documentation 1: No. 3175658 communique of Japanese Utility Model login
But, in above-mentioned Sewing machines, because the upstream side of online Libra 118 arranges the line pulling off device 124 of complicated structure, so there is the problem that increases Expenses Cost because of components number.
Summary of the invention
The present invention In view of the foregoing proposes, its object is, a kind of Sewing machines and control method thereof are provided, it can be when suppressing cost increase, shorten the upper line end of the rear side that remains in sewn object, can prevent sewing up of upper line end that the 2nd pin and the 2nd pin are later, thereby carry out good stitching, make.
The control method of Sewing machines of the present invention, wherein, this Sewing machines has:
Needle bar, it is by keeping and lifting penetrate the suture needle of reaching the standard grade in pin hole, thereby inserts described suture needle to sewn object, and the rear side of sewn object described in described upper alignment is passed;
Still, it is arranged on the below of described sewn object, the lifting action interlock by with described needle bar swings, thus utilize most advanced and sophisticated catch to the rear side of described sewn object, pass described in reach the standard grade;
Holding device, it reaches the standard grade described in keeping on the upper thread path between described suture needle and Libra when driving, the movement of reaching the standard grade described in restriction;
The drive source of described holding device; And
Control part, it is controlled described drive source,
The control method of this Sewing machines is characterised in that,
Described control part, described suture needle to the 2nd pin of described sewn object in, described still described most advanced and sophisticated drives described holding device, thereby reaches the standard grade described in keeping, with the movement of reaching the standard grade described in stipulated time restriction after catching and reaching the standard grade.
According to the control method of Sewing machines of the present invention, suture needle to the 2nd pin of sewn object in, by utilizing holding device to keep reaching the standard grade, thus the movement of reaching the standard grade with stipulated time restriction.Like this, the tip of reaching the standard grade by still catches, and be drawn into needle plate below, but reaching the standard grade of being connected with bobbin from holding device is not moved downwards, only make the reaching the standard grade of part being connected with sewn object from holding device be drawn in by still, draw in to the leading section of reaching the standard grade of the rear side of sewn object and be pulled.Thus, shorten the length of the leading section of reaching the standard grade of the rear side that remains in sewn object, prevent that the leading section of reaching the standard grade from being sewed up the problem of stitching after the 2nd pin and the 2nd pin.
Therefore, the line pulling off device of the complicated structure with a plurality of parts needn't be set, just can shorten easily the length of the leading section of reaching the standard grade of the rear side that remains in sewn object, can prevent sewing up of upper line end after the 2nd pin and the 2nd pin, can carry out good making.
In addition, in the control method of Sewing machines of the present invention, preferably after the position consistency between the described tip of described suture needle and described still until the amount of drawing in of utilizing the described tip of described still to reach the standard grade described in drawing in became in the time of maximum, adjust the described stipulated time.
According to the control method of Sewing machines of the present invention, by with in the 1st pin, draw in to the length of reaching the standard grade at the back side of sewn object and thickness of sewn object etc. corresponding, in the position consistency between suture needle and the tip of still, most advanced and sophisticated catch reaching the standard grade of the wire loop of reaching the standard grade and catch constantly until utilize the tip of still to draw in the amount of drawing in of reaching the standard grade to become in the time in the maximum moment, adjustment utilizes holding device restriction to reach the standard grade the mobile stipulated time arbitrarily, thereby can easily adjust the length of the leading section of reaching the standard grade of the rear side that remains in sewn object.
In addition, in the control method of Sewing machines of the present invention, preferred described control part described suture needle to the 1st pin of described sewn object in, after the described most advanced and sophisticated seizure of described still is reached the standard grade, described holding device is driven, thereby reach the standard grade described in keeping, with the movement of reaching the standard grade described in stipulated time restriction.
According to the control method of this Sewing machines, by suture needle to the 1st pin of sewn object in, utilize holding device to keep reaching the standard grade, thus the movement of reaching the standard grade with stipulated time restriction.Like this, the tip of reaching the standard grade by still catches, and be drawn into needle plate below, but reaching the standard grade of being connected with bobbin from holding device is not moved downwards, reaching the standard grade of the part being only connected with sewn object from holding device drawn in by still, the leading section of reaching the standard grade can be drawn in to the below of needle plate 2.
The effect of invention
According to the present invention, a kind of Sewing machines and control method thereof can be provided, and it can, when suppressing cost increase, shorten the length of the upper line end of the rear side that remains in sewn object, prevent sewing up of upper line end that the 2nd pin and the 2nd pin are later, thereby carry out good making.
Accompanying drawing explanation
Fig. 1 means near the oblique view of the structure division needle bar that the related Sewing machines of embodiments of the present invention has.
Fig. 2 means near the side view of needle bar of the Sewing machines that embodiments of the present invention are related.
Fig. 3 means near the oblique view of needle bar of the Sewing machines that embodiments of the present invention are related.
Fig. 4 means the skeleton diagram of bobbin that the related Sewing machines of embodiments of the present invention has, Libra, still, line holding device etc.
Fig. 5 means the concrete figure of bobbin that the related Sewing machines of embodiments of the present invention has, Libra, still, line holding device etc.
Fig. 6 means the block diagram of the major control structure of the Sewing machines that embodiments of the present invention are related.
Fig. 7 means the sequential chart of the action case of the Sewing machines that embodiments of the present invention are related.
Fig. 8 is near the oblique view of needle bar with the Sewing machines of line pulling off device.
The explanation of symbol
7 suture needles
7a pin hole
8 needle bars
43 reach the standard grade
43 ' the leading section of reaching the standard grade
45 holding devices
46 stills
46a is most advanced and sophisticated
50 drive sources
70 control parts
The tb stipulated time
W sewn object
The specific embodiment
Below, use can realize the Sewing machines of the control method of Sewing machines involved in the present invention, and the embodiment of this control method is described.
As shown in FIG. 1 to 3, Sewing machines 1 has: upper feeding pin 3, its from above under the state that contacts with sewn object W needle plate 2, the direction of feed that is so-called sewn object W along prescribed direction moves and sewn object W is carried; Presser feet 4, it is pressed towards needle plate 2 from top by sewn object W; The 1st actuating mechanism 5, it makes upper feeding pin 3 and presser feet 4 be each the reciprocating action of the above-below direction of opposite phase; And the 2nd actuating mechanism 6, it makes upper feeding pin 3 carry out the reciprocating action of horizontal direction (direction of feed).
Upper feeding pin 3 is supported by the support stick 9 extending along the vertical direction, with the length direction of the needle bar 8 along in lower end maintenance suture needle 7.Upper feeding pin 3 is pressed the sewn object W loading in needle plate 2 from top, and clamps sewn object W with the feeding tooth 10 that protrude to needle plate 2 with the timing of regulation the below from needle plate 2, along direction of feed, carries.On this upper feeding pin 3, be formed for the patchhole 12 that suture needle 7 is inserted.
As shown in Figure 4, at the leading section of suture needle 7, there is pin hole 7a, in this pin hole 7a, penetrate and reach the standard grade 43.This suture needle 7 remains on needle bar 8.
As shown in FIG. 1 to 3, needle bar 8 is to keep suture needle 7 and the parts that carry out lifting, via connecting rod 15 and the eccentric cam 14 that is arranged on the front end of upper axle 13, links, and is accompanied by pivoting of axle 13, moves along the vertical direction and carries out lifting.This needle bar 8 is installed as and makes its length direction along above-below direction, with respect to upper feeding pin 3, configures substantially in parallel.
Presser feet 4 is the direction of feed alignment arrangements along sewn object W with respect to upper feeding pin 3, by the pressing bar 16 extending along the vertical direction, is supported.Presser feet 4 be from top by the parts of the sewn object W eedle presser 2, the mode that the front end of presser feet 4 extends with face direction from from above-below direction to needle plate 2 is bent to form, and sewn object W is separately formed to two forks to the part of pressing on needle plate 2.
The 1st actuating mechanism 5 has the connecting member 19 linking with swing mechanism 18.As shown in Figure 2, connecting member 19 forms general triangular shape, wherein, using 1 apex portion that is positioned at top as the 1st linking part 21 and swing mechanism 18 free to rotate link.In addition, in all the other 2 apex portion of connecting member 19, using the apex portion that is positioned at direction of feed upstream side as the 2nd linking part 22, using the apex portion that is positioned at downstream as the 3rd linking part 23.
On the 2nd linking part 22, via linkage component 33, link support stick 9, on the 3rd linking part 23, link and have pressing bar 16.On pressing bar 16, be provided with the joint portion 34 and the spring 16a that link with the 3rd linking part 23.Pressing bar 16 utilizes via the power of connecting member 19 34 swing mechanisms 18 that transmit to joint portion and carries out lifting.In addition, utilize spring 16a to apply pretightning force to pressing bar 16, so that its decline.
Joint portion 34 can be supported on sewing machine stand free lifting, and has the extension 35 that extend in the left side in Fig. 3.On extension 35, square block 36 free to rotate is installed.
The bight 37a of raising wire 37 is supported on sewing machine stand with mode axle free to rotate.And an end of raising wire 37 forms roughly コ word shape, with chimeric with square block 36, on the other end, link the piston rod 39 of cylinder 38.Thus, raising wire 37 is supported under the state on sewing machine stand free to rotate, via square block 36 and joint portion 34, links with pressing bar 16.Owing to adopting this structure, so be accompanied by the rotation of raising wire 37, move joint portion 34 liftings, pressing bar 16 and support stick 9 liftings.
As shown in FIG. 1 to 3, swing mechanism 18 with by sewing machine electromotor 24(with reference to Fig. 6) the upper axle 13 that rotarilys actuate links.And this swing mechanism 18 transmits the driving force of sewing machine electromotor 24 via upper axle 13 to the 1st actuating mechanism 5.More particularly, swing mechanism 18 has: swinging axle 25, and it links via eccentric cam (omitting diagram) and upper axle 13; Transmit connecting rod 26, itself and one end link of swinging axle 25; And swing connecting bar 27, its one end links with transmission connecting rod 26 free to rotately, and the 1st coupling position 21 of the other end and connecting member 19 links free to rotately.
Transmit connecting rod 26 and be configured to make its length direction along above-below direction, swing connecting bar 27 is configured to make its length direction and transmits connecting rod 26 quadratures.
The 2nd actuating mechanism 6 makes upper feeding pin 3 and needle bar 8 carry out the reciprocating action of horizontal direction (direction of feed).In the 2nd actuating mechanism 6, as shown in Figure 2, have: transferring elements 28, it links via eccentric cam (omitting diagram) and upper axle 13; The 1st bar 29, it links with transferring elements 28 free to rotately; The 2nd bar 30, it links with the 1st bar 29 free to rotately; Tensile part 31, it links with the 2nd bar 30 free to rotately; And swing frame 32, it links with tensile part 31 free to rotately.In the bottom of swing frame 32, and tensile part 31 between linking part near, be provided with the support portion 11 of supporting upper feeding pin 3 and needle bar 8, the upper end of swing frame 32 by not shown sewing machine stand free to rotate support.
In addition, in Sewing machines 1, as shown in Figure 4, on sewing machine stand, dispose the bobbin 40 as the supply source of reaching the standard grade.From bobbin 40, pull out reach the standard grade 43 via the 1st line adjusting portion the 41, the 2nd line adjusting portion 42 and Libra 44 until suture needle 7.In addition, have holding device 45 in Sewing machines 1, it is configured on the upper thread path between Libra 44 and suture needle 7, reach the standard grade 43 movement of restriction.
Holding device 45 for example as shown in Figure 5, has following parts and forms: the drive sources such as cylinder or solenoid 50; Housing 45A, it accommodates drive source 50; And holding plate 45B, it is supported on the movable part of drive source 50, and and the front end of above-mentioned housing 45A between form gap.This holding device 45 by from control part 70(with reference to Fig. 6) to drive source 50 input drive signal ON, drive, by holding plate 45B is drawn in to housing 45A direction, thereby utilize holding plate 45B and housing 45A sandwich and keep reaching the standard grade 43.Like this, reaching the standard grade 43 is kept by holding device 45, limits it and moves.
Downside at needle plate 2 disposes still 46, and this still 46 catches and utilizes to making that thing falls pin and the suture needle 7 that runs through and enter needle plate 2 belows reach the standard grade 43.On still 46, be provided with most advanced and sophisticated 46a.Still 46 is with upper axle 13 interlocks and be rotated, and in upper axle 13 rotations during to the anglec of rotation of regulation, most advanced and sophisticated 46a catches 43 the wire loop of reaching the standard grade forming below needle plate., on upper axle 13, encoder 47(is installed with reference to Fig. 6 here), its most advanced and sophisticated 46a for detection of still 46 catches the anglec of rotation while reaching the standard grade 43 wire loop.
Fig. 6 means the block diagram of the major control structure of Sewing machines 1.As shown in Figure 6, electric being connected with on Sewing machines 1: input guidance panel 71, drive source 50, sewing machine electromotor 24, cylinder 38 and the encoder 47 of various indications, and be provided with the control part 70 that each part mentioned above is controlled.
If 70 pairs of sewing machine electromotors 24 of control part are controlled, axle 13 is rotated, as shown in FIG. 1 to 3, via eccentric cam 14 and connecting rod 15, make needle bar 8 liftings.Now, swinging axle 25 rotates with upper axle 13 interlocks, and this rotational power transmits to connecting member 19 via transmitting connecting rod 26 and swing connecting bar 27.
If utilize swing connecting bar 27 that connecting member 19 is extruded to the right side in Fig. 2, support stick 9 and upper feeding pin 3 decline, and drop on sewn object W.If start swing connecting bar 27 further to extrude to the right from this state, because having dropped on sewn object W, upper feeding pin 3 above cannot continue to decline, so connecting member 19 clockwise rotates centered by the 2nd coupling position 22, pressing bar 16 and presser feet 4 rise.
Then, if the reversion of the swaying direction of swing connecting bar 27 retracts connecting member 19 to the left, pressing bar 16 and presser feet 4 decline, and drop on sewn object W.If start swing connecting bar 27 further to retract to the left from this state, because having dropped on sewn object W, presser feet 4 above cannot continue to decline, so connecting member 19 rotates counterclockwise centered by the 3rd coupling position 23, support stick 9 and upper feeding pin 3 rise.Thus, presser feet 4 and upper feeding pin 3 move up and down with roughly contrary phase place, alternately fall and press sewn object W.In addition, needle bar 8 roughly synchronously moves up and down with upper feeding pin 3.
In addition, on upper axle 13, due to as noted above, via not shown eccentric cam, link transferring elements 28, the rotation of above axle 13 with the order of transferring elements 28, the 1st bar 29, the 2nd bar 30, be passed, tensile part 31 along continuous straight runs are swung.By the swing of tensile part 31, make swing frame 32 take its upper end as a spot wobble, so upper feeding pin 3 also swing to direction of feed.As noted above, by making upper feeding pin 3 lifting when swinging to direction of feed, thereby sewn object W is carried along direction of feed.
Below, the driving while starting for making of the control part 70 of above-mentioned Sewing machines 1 is controlled, and exemplifies the sequential chart of Fig. 7 and describes.
First, when sewn object W is set on needle plate 2, control part 70, under the state that sewing machine electromotor 24 is stopped, being controlled cylinder 38, obtains the state that makes upper feeding pin 3 and presser feet 4 increase.Thus, between upper feeding pin 3 and presser feet 4 and needle plate 2, form gap, can make sewn object W enter this gap by user.
If user presses indication (T1) to guidance panel 71 inputs after sewn object W is set, by control part 70, drive cylinder 38, upper feeding pin 3 and presser feet 4 are declined.Thus, utilize upper feeding pin 3 and presser feet 4 to press sewn object W.
Then, if user makes and starts indication (T2) from guidance panel 71 inputs, control part 70 drives sewing machine electromotor 24, makes axle 13 rotations.Thus, start making sewn object W.
Below, control when making of sewn object W started is described.
(the 1st pin)
In making the 1st pin (T2～T3) of beginning, if the anglec of rotation of the upper axle 13 being obtained by encoder 47 becomes the seizure angle of utilizing still 46 to catch to reach the standard grade 43,, become when needle bar 8 starts to rise from lower dead center and to form 43 the wire loop of reaching the standard grade, position consistency between suture needle 7 and the most advanced and sophisticated 46a of still 46, most advanced and sophisticated 46a catches 43 the reaching the standard grade of wire loop of reaching the standard grade and catches (TA) constantly, and control part 70 makes drive source 50 connect stipulated time ta, holding device 45 is driven, reach the standard grade 43 movement of restriction.Under this state, owing to being accompanied by the rotation of still 46, wire loop is expanded, around around still, therefore, reaching the standard grade of being caught by the most advanced and sophisticated 46a of still 46 43 drawn in to the below of needle plate 2 simultaneously.Now, owing to utilizing 45 pairs of holding devices to reach the standard grade, 43 carry out mobile restriction, so reaching the standard grade of being connected with bobbin 40 from holding device 45 43 do not moved downwards, reaching the standard grade of the part being only connected with suture needle 7 from holding device 45 43 moved to still 46 along with drawing in.And final, the leading section 43 of reaching the standard grade ' the be drawn into below (rear side of sewn object W) to needle plate 2.In addition, this 43 draws in actuation time in (ta) of reaching the standard grade, control part 70 drives cylinder 38, makes upper feeding pin 3 and presser feet 4 increase.Thus, do not recycle 4 pairs of upper feeding pin 3 and presser feets and reach the standard grade and 43 press, to the rear side of sewn object W successfully draw in the leading section 43 of reaching the standard grade '.
In addition, 43 stipulated time ta keeps for holding device 45 is driven reaching the standard grade, can be when suture needle 7 be risen position consistency, most advanced and sophisticated 46a between suture needle 7 and the most advanced and sophisticated 46a of still 46 catch reaching the standard grade of 43 the wire loop of reaching the standard grade and catch constantly until utilize the most advanced and sophisticated 46a of still 46 to draw in to reach the standard grade 43 the amount of drawing in to become in the time in the maximum moment, adjust arbitrarily.
(the 2nd pin)
In making the 2nd pin (T3～T4) of beginning, if the anglec of rotation of the upper axle 13 being obtained by encoder 47 becomes the seizure angle of utilizing still 46 to catch to reach the standard grade 43,, become when needle bar 8 starts to rise from lower dead center and to form 43 the wire loop of reaching the standard grade, position consistency between suture needle 7 and the most advanced and sophisticated 46a of still 46, most advanced and sophisticated 46a catches 43 the reaching the standard grade of wire loop of reaching the standard grade and catches (TB) constantly, control part 70 makes drive source 50 connect predefined stipulated time tb, holding device 45 is driven, grasp and reach the standard grade 43.
Under this state, owing to being accompanied by the rotation of still 46, wire loop is expanded, around around still, therefore, reaching the standard grade of being caught by the most advanced and sophisticated 46a of still 46 43 drawn in to the below of needle plate 2 simultaneously.Now, owing to reaching the standard grade, 43 be held device 45 and keep and moving-limiting, so reaching the standard grade of being connected with bobbin 40 from holding device 45 43 do not moved downwards, reaching the standard grade of the part being only connected with sewn object W from holding device 45 43 moved along with drawing in of still 46.Thus, in the 1st pin, draw in the leading section of reaching the standard grade 43 to the rear side of sewn object W ' mobile to the direction retracting (direction of arrow in Fig. 4).Thus, can shorten the leading section of reaching the standard grade 43 of the rear side that remains in sewn object W ' length.
In addition, 43 stipulated time tb keeps for holding device 45 is driven reaching the standard grade, can be when suture needle 7 be risen position consistency, most advanced and sophisticated 46a between suture needle 7 and the most advanced and sophisticated 46a of still 46 catch reaching the standard grade of 43 the wire loop of reaching the standard grade and catch (TB) constantly until utilize the most advanced and sophisticated 46a of still 46 to draw in to reach the standard grade 43 the amount of drawing in to become in the time of the maximum moment (TBmax), adjust arbitrarily.; by corresponding with reach the standard grade 43 length and thickness of sewn object W etc. of drawing in to the sewn object W back side; the stipulated time tb that holding device 45 is driven is adjusted, thus can easily adjust the leading section of reaching the standard grade 43 drawn in to the sewn object W back side ' length.
(after the 3rd pin and the 3rd pin)
After the 3rd pin and the 3rd pin (after T4 and T4), do not carry out the driving of holding device 45 and control, utilize and commonly make action and make sewn object W.
As noted above, according to present embodiment, in the 2nd pin of 7 couples of sewn object W of suture needle, by utilizing holding device 45 to keep reaching the standard grade 43, thereby 43 movements downwards of reaching the standard grade that are connected with bobbin 40 from holding device 45 with stipulated time tb restriction, only make reaching the standard grade of the part that is connected with sewn object W from holding device 45 43 by drawing in of still 46, move.Like this, draw in the leading section of reaching the standard grade 43 to the rear side of sewn object W ' be accompanied by the rotation of still 46 and the direction that retracts to still moves.Thus, shorten the leading section of reaching the standard grade 43 of the rear side remain in sewn object W ' length, prevent the leading section 43 of reaching the standard grade ' the sewed up problem of stitching after the 2nd pin and the 2nd pin.
Therefore, the line pulling off device of the complicated structure with a plurality of parts needn't be set, just can shorten easily in the 2nd pin, remain in the leading section of reaching the standard grade 43 of the rear side of sewn object W ' length, thus, can be when suppressing cost increase, prevent the leading section 43 of reaching the standard grade after the 2nd pin and the 2nd pin ' sew up, can carry out good making.
In addition, by corresponding with reach the standard grade 43 length and thickness of sewn object W etc. of drawing in to the back side of sewn object W, in the position consistency between suture needle 7 and the most advanced and sophisticated 46a of still 46, most advanced and sophisticated 46a catches reaching the standard grade of 43 the wire loop of reaching the standard grade and catches constantly (TB) until the amount of drawing in of reaching the standard grade became in the time of the maximum moment (TBmax), adjust arbitrarily and utilize holding device 45 43 the stipulated time tb that keeps reaching the standard grade, thus can easily adjust the leading section of reaching the standard grade 43 in the 2nd pin ' length.
In addition, utilizing holding device 45 keep reaching the standard grade 43 control, can not be also to take the time as benchmark, but take the anglec of rotation of the upper axle 13 that obtained by encoder 47, controls as benchmark.Specifically, also can be in the position consistency between suture needle 7 and the most advanced and sophisticated 46a of still 46, most advanced and sophisticated 46a catches the anglec of rotation of the upper axle 13 while reaching the standard grade 43 wire loop until utilize the most advanced and sophisticated 46a of still 46 to draw in to reach the standard grade 43 the amount of drawing in to become in the rotation angle range of going up axle 13 arbitrarily of the anglec of rotation of maximum, the upper line absorption upper axle 13 when maximum, control, to utilize reach the standard grade 43 maintenance of holding device 45.
Claims (3)
1. a control method for Sewing machines, wherein, this Sewing machines has:
Needle bar, it is by keeping and lifting penetrate the suture needle of reaching the standard grade in pin hole, thereby inserts described suture needle to sewn object, and the rear side of sewn object described in described upper alignment is passed;
Still, it is arranged on the below of described sewn object, the lifting action interlock by with described needle bar swings, thus utilize most advanced and sophisticated catch to the rear side of described sewn object, pass described in reach the standard grade;
Holding device, it reaches the standard grade described in keeping on the upper thread path between described suture needle and Libra when driving, the movement of reaching the standard grade described in restriction;
The drive source of described holding device; And
Control part, it is controlled described drive source,
The control method of this Sewing machines is characterised in that,
Described control part, described suture needle to the 2nd pin of described sewn object in, described still described most advanced and sophisticated drives described holding device, thereby reaches the standard grade described in keeping, with the movement of reaching the standard grade described in stipulated time restriction after catching and reaching the standard grade.
2. the control method of Sewing machines according to claim 1, is characterized in that,
After position consistency between the described tip of described suture needle and described still, until the amount of drawing in of utilizing the described tip of described still to reach the standard grade described in drawing in became in the time of maximum, adjust the described stipulated time.
3. the control method of Sewing machines according to claim 1 and 2, is characterized in that,
Described control part, described suture needle to the 1st pin of described sewn object in, described still described most advanced and sophisticated drives described holding device, thereby reaches the standard grade described in keeping, with the movement of reaching the standard grade described in stipulated time restriction after catching and reaching the standard grade.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107059267A (en) * | 2017-06-16 | 2017-08-18 | 杰克缝纫机股份有限公司 | A kind of simple take-up governor motion of sewing machine and sewing machine |
| CN110528194A (en) * | 2018-05-23 | 2019-12-03 | 天津宝盈电脑机械有限公司 | A kind of synchronous presser foot device for transverse joint head |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107059267A (en) * | 2017-06-16 | 2017-08-18 | 杰克缝纫机股份有限公司 | A kind of simple take-up governor motion of sewing machine and sewing machine |
| CN107059267B (en) * | 2017-06-16 | 2019-07-12 | 杰克缝纫机股份有限公司 | A kind of simple take-up regulating mechanism of sewing machine and sewing machine |
| CN110528194A (en) * | 2018-05-23 | 2019-12-03 | 天津宝盈电脑机械有限公司 | A kind of synchronous presser foot device for transverse joint head |
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| CN104120560B (en) | 2018-02-13 |
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