CN103498304A - Needle bar separation mechanism of sewing machine - Google Patents
Needle bar separation mechanism of sewing machine Download PDFInfo
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- CN103498304A CN103498304A CN201310416470.1A CN201310416470A CN103498304A CN 103498304 A CN103498304 A CN 103498304A CN 201310416470 A CN201310416470 A CN 201310416470A CN 103498304 A CN103498304 A CN 103498304A
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- axle
- needle bar
- rocker arm
- son
- sewing machine
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Abstract
The invention discloses a needle bar separation mechanism of a sewing machine, and belongs to the technical field of manufacturing of sewing machines. The needle bar separation mechanism of the sewing machine resolves the technical problem that in the prior art, a puncturing mechanism and a feeding mechanism of the sewing machine can not be separated. The needle bar separation mechanism of the sewing machine comprises a machine head shell (1), wherein an upper shaft is arranged on the machine head shell (1) in the axial direction and is divided into two sections, namely an upper shaft I (2) and an upper shaft II (3), a clutch device used for achieving separation and combination of the two upper shafts is arranged at the two opposite ends of the upper shaft I (2) and the upper shaft II (3), and the clutch device comprises a swinging component driven by a driving device. Due to the fact that the clutch device is arranged, combination and separation of the upper shaft I (2) and the upper shaft II (3) are achieved, the puncturing mechanism and the feeding mechanism can be combined with and separated from each other, continuous jump line sections can be formed on cloth, various sewing requirements are met, a clothing material is more beautiful, and work efficiency and product quality are improved.
Description
Technical field
The invention belongs to sewing mechanism technology for making field, particularly relate to the main shaft that can make Sewing machines and realize combination and a kind of needle bar of sewing machine separating mechanism separated with the main shaft of needle bar mechanism.
Background technology
Traditional Sewing machines generally all comprises support, and head shell is set on support, and main shaft, thread take-up mechanism, needle bar mechanism, feed mechanism and hook line mechanism are set in head shell.In the course of the work, driving thread take-up mechanism, needle bar mechanism, feed mechanism and hook line mechanism by main shaft realizes being synchronized with the movement, drive needle bar mechanism by main shaft and sting the material motion, make the upper thread cloth that punctured, main shaft drives feed mechanism and carries out the feeding campaign, make cloth make uniform motion, by thread take-up mechanism and hook line mechanism motion, make cloth form continuous stitching.
But, sometimes, according to different sewing requirements, while in the middle of one section cloth of having sewed, inserting the cloth of another part, at this moment just need to dismantle the upper thread of having sewed and bottom line, then insert the cloth that need to add, and not only dismantle upper thread and bottom line are lost time, be easy to again destroy cloth, and can stay expendable needle tracking on cloth, affect the aesthetic measure of cloth finished product.
Therefore, if a kind of device can be set, can realize that needle bar mechanism separates and combination with feed mechanism, when needs form continuous stitching on cloth, needle bar mechanism is combined with feed mechanism, sewing mode is routinely sewed; When on a certain length of cloth, not needing stitching, needle bar mechanism is separated with feed mechanism, it is feed mechanism continuous operation and needle bar mechanism quits work, so just can on cloth, occur that one section needle bar mechanism does not pass the continuous wire jumper section of cloth, can avoid the workman to take out stitches by hand, can save workman's labour like this, not destroy again cloth, increase work efficiency and the crudy of cloth.
Summary of the invention
The technical problem to be solved in the present invention is to eliminate the needle bar mechanism of Sewing machines in prior art can not realize the technical problem of separating with feed mechanism, provide a kind of have can make needle bar mechanism separate and combination with feed mechanism, thereby the wire trace segment of sewing out on cloth and wire jumper section, avoid the workman to take out stitches by hand, increase work efficiency.
In order to solve the problems of the technologies described above, the invention provides a kind of needle bar of sewing machine separating mechanism, comprise head shell, in head shell, axial location arranges axle, should go up axle and be divided into two sections, and be axle one and upper axle two, the axle center of described upper axle one and upper axle two is arranged on same axis direction, the two ends that described upper axle one is relative with upper axle two arrange and can make diaxon realize separating the arrangement of clutch with combination, and this arrangement of clutch comprises the swing part driven by drive unit; Move by drive unit, can impel the arrangement of clutch combination and separate, thereby make axle one realize combination and separate with upper axle two.
Above-mentioned needle bar of sewing machine separating mechanism, described arrangement of clutch comprises the fixed knot zygote be arranged on axle one and is arranged on the son that is slidably connected that can be moved by the secure bond subband on axle two, this fixed knot zygote is circular and is fixedly connected on upper axle one by trip bolt, this son that is slidably connected is circular and is connected to slidably on axle two at axial direction, and described fixed knot zygote and the son that is slidably connected match; Can make the arrangement of clutch combination and separate like this, when arrangement of clutch in conjunction with the time, the fixed knot zygote just can drive sub the moving that be slidably connected.
Above-mentioned needle bar of sewing machine separating mechanism, the surperficial axial direction of axle two arranges the taper axial notch on described, in the described sub-surface that is slidably connected, annular groove is set, the screwed hole corresponding to groove location with described diminished shaft is set on the flange of the annular groove both sides that are slidably connected sub, the trip bolt that head is taper is set on screwed hole, and the trip bolt that this head is taper is stuck in described taper axial notch through screwed hole; Be slidably connected son while rotating when the secure bond subband is moving like this, and the son that is slidably connected just can drive synchronously rotation of axle two realizations.
Above-mentioned needle bar of sewing machine separating mechanism, the taper axial notch of the surperficial axial direction setting of described upper axle two is 2 to 6, and it is also 2 to 6 that the trip bolt that the screwed hole corresponding to groove location with described diminished shaft and head are taper is set on the flange of the annular groove both sides that are slidably connected sub.When the taper axial notch is set to 2, the taper axial notch is symmetrical arranged; When the taper axial notch is set to 3, the taper axial notch is in 120 degree angles settings; The angle that is adjacent two taper axial notches equates, when trip bolt that head is taper is stuck in the taper axial notch, stressed evenly at circumferencial direction when axle two is rotated.
Above-mentioned needle bar of sewing machine separating mechanism, arrange the bearing adapter sleeve on described upper axle two, and this bearing adapter sleeve is fixed on upper axle two by trip bolt, at the bearing adapter sleeve and be slidably connected between son cylinder-shaped compression spring is set.When arrangement of clutch in conjunction with the time, cylinder-shaped compression spring can assist the son that is slidably connected to be combined with the fixed knot zygote, by the moving son rotation that is slidably connected of secure bond subband.
Above-mentioned needle bar of sewing machine separating mechanism, described swing part comprises the rocker arm shaft be arranged on head shell, inner rocker arm is set on rocker arm shaft, be fixedly connected with the roll sleeve bearing pin on inner rocker arm, on described roll sleeve bearing pin, roll sleeve is set, described roll sleeve is arranged in the sub annular groove that is slidably connected; Because the roll sleeve bearing pin is arranged in the sub annular groove that is slidably connected, when rocker arm shaft rotates, can make the roll sleeve bearing pin swing, the swing of roll sleeve bearing pin can drive the son that is slidably connected and move around at axial direction, thereby the son that makes to be slidably connected separates and combination with the fixed knot zygote, finally realizes separation and the combination of arrangement of clutch; On the roll sleeve bearing pin, roll sleeve is set, can reduces the friction of roll sleeve bearing pin and annular groove medial surface.
Above-mentioned needle bar of sewing machine separating mechanism, described rocker arm shaft is connected with drive unit, this drive unit comprises cylinder, piston rod, arm-tie and outer rocker arm, piston rod is fixedly connected with arm-tie, one end of arm-tie and outer rocker arm is flexibly connected by screw, and the other end of this outer rocker arm is fixedly connected with rocker arm shaft; When cylinder operation, drive the piston rod axially-movable like this, piston rod movement can drive the arm-tie motion, and the arm-tie motion can drive the outer rocker arm motion, and the outer rocker arm motion can drive rocker arm shaft and rotate.
The beneficial effect of above-mentioned needle bar of sewing machine separating mechanism is.
(1) due to upper axle axle one and upper axle two on the axial direction disjunction is, at upper axle one, the two ends relative with upper axle two arrange and can make diaxon realize separating the arrangement of clutch with combination, like this when upper axle one and upper axle two in conjunction with the time, bind is sewed to cloth routinely, carry out take-up motion, the motion of thorn material, feeding campaign and the motion of hook line, thereby form continuous stitching on cloth; When upper axle one separates with upper axle two, upper axle one still drives the motion of feed mechanism and hook line mechanism, but thread take-up mechanism, needle bar mechanism do not move, due to thread take-up mechanism and needle bar mechanism, do not move like this, needle bar mechanism does not move up and down vertically, so upper thread is not through cloth, and feed mechanism still participates in feeding, thereby form continuous wire jumper section on cloth, to be applicable to the requirement of various sewing, make dress material more attractive in appearance, to improve the quality of products.
(2) above scheme is easy to operate, when carrying out the routine sewing, only needs by simple handover operation, i.e. the qi of chong channel ascending adversely of cylinder and venting, just can reach the combination of arrangement of clutch and the purpose of separating, thereby carry out different sewing operations.
(3) this structural principle is simple, and cost is lower, but has significantly improved the needs of Sewing machines to different cloth sewing, makes it to reach the effect of one-machine-multi-function, owing to not needing the cloth to having sewed again to take out stitches, can increase work efficiency and product quality.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is fixed knot zygote of the present invention and the minor structure schematic diagram that is slidably connected.
Fig. 3 is axle two surface texture schematic diagrames in the present invention.
Fig. 4 be in Fig. 1 swing part A-A to structural representation.
Fig. 5 is driving device structure schematic diagram of the present invention.
Fig. 6 is that drive unit of the present invention and swing part are in conjunction with schematic diagram.
Drawing reference numeral explanation: 1-head shell, the upper axle one of 2-, the upper axle two of 3-, 31-taper axial notch, 4-fixed knot zygote, 5-that is slidably connected, the 51-annular groove, the 52-flange, the 53-screwed hole, 6a-trip bolt, the trip bolt that the 6b-head is taper, the 6c-trip bolt, 7-bearing adapter sleeve, the 8-cylinder-shaped compression spring, the 9-rocker arm shaft, the 10-inner rocker arm, the 100-outer rocker arm, 101-roll sleeve bearing pin, the 102-roll sleeve, the 103-cylinder, the 104-piston rod, the 105-arm-tie, the 106-screw, 107a-top tracheae, 107b-bottom tracheae.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Needle bar of sewing machine separating mechanism as shown in Figure 1, comprise head shell 1, at the interior axial location of head shell 1, axle is set, should go up axle and be divided into two sections, be axle 1 and upper axle 23, should can drive feed mechanism and hook line mechanism motion by upper axle 1, on this, axle 23 can drive thread take-up mechanism, needle bar mechanism motion; The axle center of upper axle 1 and upper axle 23 is arranged on same axis direction, and at upper axle 1, the two ends relative with upper axle 23 arrange and can make diaxon realize separating the arrangement of clutch with combination, and this arrangement of clutch comprises the swing part driven by drive unit; Move by drive unit, can impel the arrangement of clutch combination and separate, thereby make axle 1 realize separating and combination with upper axle 23.
The arrangement of clutch of needle bar of sewing machine separating mechanism as shown in Figure 1 and Figure 2 comprises the fixed knot zygote 4 be arranged on axle 1 and is arranged on the son 5 that is slidably connected that can be driven by fixed knot zygote 4 on axle 23, this fixed knot zygote 4 is circular and is fixedly connected on upper axle 1 by trip bolt 6a, this son 5 that is slidably connected is circular and is connected to slidably on axle 23 at axial direction, and fixed knot zygote 4 and the son 5 that is slidably connected match; Due to be slidably connected the son 5 axial direction on upper axle 23 slidably, and matching of fixed knot zygote 4 and the son 5 that is slidably connected, for example both end faces become semicircle shape, cooperatively interact, also can be in concavo-convex, cooperatively interact, can make like this arrangement of clutch separate and combination, when arrangement of clutch in conjunction with the time fixed knot zygote 4 can drive to be slidably connected and sub 5 move.
The surperficial axial direction of upper axle 23 as shown in Figure 2 and Figure 3 arranges taper axial notch 31, being slidably connected, sub 5 surfaces arrange annular groove 51, on the flange 52 of son 5 annular groove 51 both sides that is slidably connected, the screwed hole 53 corresponding with described taper axial notch 31 positions is set, the trip bolt 6b that head is set on screwed hole 53 is taper, the trip bolt 6b that this head is taper is stuck in taper axial notch 31 through screwed hole 53; When 4 drives of fixed knot zygote are slidably connected son 5 rotation, the son 5 that is slidably connected just can drive the synchronous rotation of axle 23 realization like this.As corrective measure of the present invention, the taper axial notch 31 of the surperficial axial direction setting of upper axle 23 is 2 to 6, and it is also 2 to 6 that the trip bolt 6b that the screwed hole 53 corresponding with described taper axial notch 31 positions and head are taper is set on the flange 52 of son 5 annular groove 51 both sides that is slidably connected.When taper axial notch 31 is set to 2, taper axial notch 31 is symmetrical arranged, when taper axial notch 31 is set to 3, taper axial notch 31 is in 120 degree angles settings, the angle that is adjacent two taper axial notches 31 equates, when the head trip bolt 6b that is taper is stuck in 31 li of taper axial notches, stressed evenly at circumferencial direction when axle 23 is rotated.
On upper axle 23 as shown in Figure 1, bearing adapter sleeve 7 is set, this bearing adapter sleeve 7 is fixed on upper axle 23 by trip bolt 6c, cylinder-shaped compression spring 8 is set at bearing adapter sleeve 7 and the son that is slidably connected between 5, when arrangement of clutch in conjunction with the time, cylinder-shaped compression spring 8 can be assisted be slidably connected son 5 and 4 combinations of fixed knot zygote, drives by fixed knot zygote 4 son 5 that is slidably connected and rotates.
Swing part as shown in Figure 1, Figure 2, Figure 4 shows comprises the rocker arm shaft 9 be arranged on head shell 1, be fixedly installed inner rocker arm 10 on rocker arm shaft 9, be fixedly connected with roll sleeve bearing pin 101 on inner rocker arm 10, on this roll sleeve bearing pin 101, roll sleeve 102 is set, this roll sleeve bearing pin 101 is arranged in the annular groove 51 of the son 5 that is slidably connected; Because roll sleeve bearing pin 101 is arranged in annular groove 51, so when rocker arm shaft 9 rotates, can make roll sleeve bearing pin 101 swing, 101 swings of roll sleeve bearing pin can drive the son 5 that is slidably connected and move around at axial direction, thereby the son 5 that makes to be slidably connected separates and combination with fixed knot zygote 4, realize separation and the combination of arrangement of clutch, the final realization makes axle 1 separate and combination with upper axle 23.Roll sleeve 102 is set on roll sleeve bearing pin 101, can reduces the friction of roll sleeve bearing pin 101 and annular groove 51 medial surfaces.
It should be noted that, between being slidably connected son 5 and the bearing adapter sleeve 7 on upper axle 23 shown in Fig. 1, employing is cylinder-shaped compression spring 8, but is not limited in this, can be with compressible other elastomeric elements, and as caoutchouc elasticity sleeve part etc. replaces.
During use, as Fig. 1, Fig. 4, Fig. 5, shown in Fig. 6, (for convenience of description, position, left and right in accompanying drawing is identical with position, left and right described below) start servomotor, servomotor drives lower beam warp Timing Belt and drives upper axle 1 and 4 rotations of fixed knot zygote, then make cylinder 103 bottom tracheae 107b inflations, piston rod 104 pulls arm-tie 105 to move upward, arm-tie 105 motions drive outer rocker arm 100 and rotate, outer rocker arm 100 rotates drive rocker arm shaft 9 and clockwise rotates, rocker arm shaft 9 clockwise rotates and drives inner rocker arm 10 simultaneously and clockwise rotate, roll sleeve bearing pin 101 is swung to the right, thereby the son 5 that makes to be slidably connected moves right and 4 combinations of fixed knot zygote, while bearing adapter sleeve 7 and the cylinder-shaped compression spring 8 be slidably connected between son 5 auxiliary be slidably connected son 5 and 4 combinations of fixed knot zygote, driving by fixed knot zygote 4 son 5 that is slidably connected rotates, thereby make axle 23 realize synchronizeing rotation with upper axle 1, at this moment, thread take-up mechanism, needle bar mechanism, feed mechanism and hook line mechanism are realized being synchronized with the movement, and on cloth, normally sew, and form continuous stitching.When needs carry out wire jumper, make cylinder 103 top tracheae 107a inflations, piston rod 104 pulls arm-tie 105 to move downward, arm-tie 105 motions drive outer rocker arm 100 and rotate, outer rocker arm 100 rotates and drives rocker arm shafts 9 and rotate counterclockwise; rocker arm shaft 9 rotates counterclockwise and drives inner rocker arm 10 simultaneously and rotate counterclockwise; thus roll sleeve bearing pin 101 is swung left; and at this moment making to be slidably connected sub 5 is moved to the left with fixed knot zygote 4 and separates; go up axle 1 and separate with upper axle 23; go up axle 1 and be rotated further, so feed mechanism and hook line mechanism work on, and continues to realize feeding; And upper axle 23 stops operating, so thread take-up mechanism and needle bar mechanism quit work, shank does not sting the material motion up and down, by the servomotor microcomputer control system, is controlled and is made pin be parked in upper initial point, and needlework, not through cloth, therefore form wire jumper on processed cloth; In the time will re-starting the continuous stitching of conventional sewing formation, as long as make cylinder 103 bottom tracheae 107b inflations repeat above-mentioned steps.
The above is explained in detail embodiment of the present invention by reference to the accompanying drawings; but the present invention is not limited to above-mentioned embodiment; to those skilled in the art; can also make under the premise of not departing from the present invention some modification and improvement, these also should be considered as belonging to protection scope of the present invention.
Claims (7)
1. a needle bar of sewing machine separating mechanism, comprise head shell (1), in described head shell (1), axial location arranges upper axle, it is characterized in that: described upper axle is divided into to two sections, go up axle one (2) and upper axle two (3), the axle center of described upper axle one (2) and upper axle two (3) is arranged on same axis direction, the two ends that described upper axle one (2) is relative with upper axle two (3) arrange the arrangement of clutch that can make diaxon realize separation and combination, and described arrangement of clutch comprises the swing part driven by drive unit.
2. according to the described needle bar of sewing machine separating mechanism of claim 1, it is characterized in that: described arrangement of clutch comprises the fixed knot zygote (4) be arranged on axle one (2) and is arranged on the son that is slidably connected (5) that can be driven by fixed knot zygote (4) on axle two (3), described fixed knot zygote (4) is circular and is fixedly connected on upper axle one (2) by trip bolt (6a), the described son that is slidably connected (5) is circular and is connected to slidably axle two (3) above at axial direction, and described fixed knot zygote (4) and the son that is slidably connected (5) match.
3. needle bar of sewing machine separating mechanism according to claim 2, it is characterized in that: the surperficial axial direction of axle two (3) arranges taper axial notch (31) on described, on the described son that is slidably connected (5) surface, annular groove (51) is set, the screwed hole (53) corresponding with described taper axial notch (31) position be set the flange (52) of annular groove (51) both sides of the described son that is slidably connected (5) is upper, the trip bolt (6b) that head is set on described screwed hole (53) is taper, the trip bolt that described head is taper (6b) is stuck in described taper axial notch (31) through screwed hole (53).
4. needle bar of sewing machine separating mechanism according to claim 3, it is characterized in that: the taper axial notch (31) that the surperficial axial direction of axle two (3) arranges on described is 2 to 6, and at the flange (52) of annular groove (51) both sides of the son that is slidably connected (5), upper the trip bolt (6b) that the screwed hole (53) corresponding with described taper axial notch (31) position and head are taper is set is also 2 to 6.
5. according to claim 2 or 3 or 4 described needle bar of sewing machine separating mechanisms, it is characterized in that: on axle two (3), bearing adapter sleeve (7) is set on described, it is upper that described bearing adapter sleeve (7) is fixed on upper axle two (3) by trip bolt (6c), between described bearing adapter sleeve (7) and the son that is slidably connected (5), cylinder-shaped compression spring (8) is set.
6. needle bar of sewing machine separating mechanism according to claim 5, it is characterized in that: comprise the rocker arm shaft (9) be arranged on head shell (1) at described swing part, be fixedly installed inner rocker arm (10) on described rocker arm shaft (9), be fixedly connected with roll sleeve bearing pin (101) on described inner rocker arm (10), roll sleeve (102) is set on described roll sleeve bearing pin (101), and described roll sleeve (102) is arranged in the annular groove (51) of the son that is slidably connected (5).
7. needle bar of sewing machine separating mechanism according to claim 6, it is characterized in that: described rocker arm shaft (9) is connected with drive unit, described drive unit comprises cylinder (103), piston rod (104), arm-tie (105) and outer rocker arm (100), described piston rod (104) is fixedly connected with arm-tie (105), described arm-tie (105) is flexibly connected by screw (106) with an end of outer rocker arm (100), and the other end of described outer rocker arm (100) is fixedly connected with rocker arm shaft (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310416470.1A CN103498304B (en) | 2013-09-13 | 2013-09-13 | Needle bar of sewing machine separating mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310416470.1A CN103498304B (en) | 2013-09-13 | 2013-09-13 | Needle bar of sewing machine separating mechanism |
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| CN103498304A true CN103498304A (en) | 2014-01-08 |
| CN103498304B CN103498304B (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310416470.1A Active CN103498304B (en) | 2013-09-13 | 2013-09-13 | Needle bar of sewing machine separating mechanism |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03202096A (en) * | 1989-12-28 | 1991-09-03 | Duerkopp Adler Ag | Sewing machine |
| JP2002355482A (en) * | 2001-05-31 | 2002-12-10 | Juki Corp | Sewing machine |
| CN2623729Y (en) * | 2003-02-09 | 2004-07-07 | 张武雄 | Clutch device for rotating shuttle drive shaft of sewing machine |
| CN201050006Y (en) * | 2007-06-08 | 2008-04-23 | 唐树勇 | Drive mechanism for sewing machine feeding system |
| CN203429399U (en) * | 2013-09-13 | 2014-02-12 | 浙江百惠缝纫机有限公司 | Sewing machine needle bar detaching mechanism |
-
2013
- 2013-09-13 CN CN201310416470.1A patent/CN103498304B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03202096A (en) * | 1989-12-28 | 1991-09-03 | Duerkopp Adler Ag | Sewing machine |
| JP2002355482A (en) * | 2001-05-31 | 2002-12-10 | Juki Corp | Sewing machine |
| CN2623729Y (en) * | 2003-02-09 | 2004-07-07 | 张武雄 | Clutch device for rotating shuttle drive shaft of sewing machine |
| CN201050006Y (en) * | 2007-06-08 | 2008-04-23 | 唐树勇 | Drive mechanism for sewing machine feeding system |
| CN203429399U (en) * | 2013-09-13 | 2014-02-12 | 浙江百惠缝纫机有限公司 | Sewing machine needle bar detaching mechanism |
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| CN103498304B (en) | 2015-12-16 |
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