CN203429399U - Sewing machine needle bar detaching mechanism - Google Patents
Sewing machine needle bar detaching mechanism Download PDFInfo
- Publication number
- CN203429399U CN203429399U CN201320567719.4U CN201320567719U CN203429399U CN 203429399 U CN203429399 U CN 203429399U CN 201320567719 U CN201320567719 U CN 201320567719U CN 203429399 U CN203429399 U CN 203429399U
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- axle
- needle bar
- rocker arm
- sewing machine
- son
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Abstract
The utility model discloses a sewing machine needle bar detaching mechanism, belongs to the field of sewing machine manufacture technology, and aims to solve the technical problem in the prior art that the needle bar mechanism and the feed mechanism of a sewing machine can not be detached. The sewing machine needle bar detaching mechanism comprises a handpiece casing (1), wherein an upper shaft is arranged in the handpiece casing (1) at the axial position; the upper shaft is divided into two sections, namely an upper shaft I (2) and an upper shaft II (3); a clutch device capable of separating and combining the two shafts is arranged at two opposite ends of the upper shaft I (2) and the upper shaft II (3); the clutch device comprises a rocking component driven by a driving device. According to the utility model, as the clutch device is arranged, the combination and detachment of the upper shaft I (2) and the upper shaft II (3) are realized, the needle bar mechanism and the feed mechanism are combined and detached, a continuous thread jumping section is formed on a cloth, various sewing requirements are met, apparel fabric is relatively artistic, and both the working efficiency and the product quality are improved.
Description
Technical field
The utility model belongs to sewing mechanism technology for making field, particularly relates to and can make the main shaft of Sewing machines and the main shaft of needle bar mechanism realize in conjunction with a kind of needle bar of sewing machine separating mechanism with separated.
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, by main shaft, driving thread take-up mechanism, needle bar mechanism, feed mechanism and hook line mechanism to realize is synchronized with the movement, by main shaft, drive needle bar mechanism to sting material motion, make the upper thread cloth that punctured, main shaft drives feed mechanism to carry out 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 inserting the cloth of another part in the middle of one section of cloth of having sewed, at this moment just the upper thread of having sewed and bottom line need to be dismantled, 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 leave expendable needle tracking on cloth, affect the aesthetic measure of cloth finished product.
Therefore, if a kind of device can be set, can realize needle bar mechanism and combination separated with feed mechanism, when needs form continuous stitching on cloth, needle bar mechanism is combined with feed mechanism, sewing mode is routinely sewed; When not needing stitching on a certain length of cloth, make needle bar mechanism 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 of needle bar mechanism does not pass the continuous wire jumper section of cloth, can avoid 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.
Utility model content
The technical problems to be solved in the utility model is to eliminate the needle bar mechanism of Sewing machines in prior art can not realize separated technical problem with feed mechanism, provide a kind of have can make needle bar mechanism and combination separated with feed mechanism, thereby the wire trace segment of sewing out on cloth and wire jumper section, avoid workman to take out stitches by hand, increase work efficiency.
In order to solve the problems of the technologies described above, the utility model provides a kind of needle bar of sewing machine separating mechanism, comprise head shell, in head shell, axial location arranges axle, axle on this is divided into two sections, is axle one and upper axle two, described upper axle one and the axle center of upper axle two are 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 separated and arrangement of clutch combination, and this arrangement of clutch comprises the swing part being driven by drive unit; By drive unit, move, can impel arrangement of clutch combination with separated, thereby make axle one realize combination with separated with upper axle two.
Above-mentioned needle bar of sewing machine separating mechanism, described arrangement of clutch comprises the fixed knot zygote being arranged on axle one and is arranged on the son that is slidably connected that can be moved by 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 like this arrangement of clutch combination with separated, when arrangement of clutch in conjunction with time, fixed knot zygote just can drive sub the moving that be slidably connected.
Above-mentioned needle bar of sewing machine separating mechanism, surperficial axial direction at described upper axle two arranges taper axial notch, in the described sub-surface that is slidably connected, annular groove is set, on the flange of the annular groove both sides that are slidably connected sub, arrange with described diminished shaft to the corresponding screwed hole of groove location, 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; When secure bond subband is moving, be slidably connected son while rotating like this, 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 the trip bolt that to arrange with described diminished shaft on the flange of the annular groove both sides that are slidably connected sub be taper to the corresponding screwed hole of groove location and head is also 2 to 6.When taper axial notch is set to 2, taper axial notch is symmetrical arranged; When taper axial notch is set to 3, 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 taper axial notch, stressed evenly at circumferencial direction when axle two is rotated.
Above-mentioned needle bar of sewing machine separating mechanism, arranges bearing adapter sleeve on described upper axle two, and this bearing adapter sleeve is fixed on upper axle two by trip bolt, at bearing adapter sleeve and be slidably connected cylinder-shaped compression spring is set between son.When arrangement of clutch in conjunction with time, cylinder-shaped compression spring can assist the son that is slidably connected to be combined with 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 being arranged on head shell, inner rocker arm is set on rocker arm shaft, on inner rocker arm, be fixedly connected with roll sleeve bearing pin, 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 roll sleeve bearing pin is arranged in the sub annular groove that is slidably connected, when rocker arm shaft rotates, can make roll sleeve bearing pin swing, roll sleeve bearing pin swings and can drive the son that is slidably connected to move around at axial direction, thereby make to be slidably connected son and combination separated with fixed knot zygote, finally realize separation and the combination of arrangement of clutch; On 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, arm-tie is flexibly connected by screw with one end of outer rocker arm, and the other end of this outer rocker arm is fixedly connected with rocker arm shaft; When cylinder operation, drive piston rod axially-movable like this, piston rod movement can drive arm-tie motion, and arm-tie motion can drive outer rocker arm motion, and outer rocker arm motion can drive rocker arm shaft to 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 axial direction disjunction is, at upper axle one two ends relative with upper axle two, arrange and can make diaxon realize separated and arrangement of clutch combination, like this when upper axle one and upper axle two in conjunction with 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 on cloth, form continuous stitching; When upper axle one is separated 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, because thread take-up mechanism and needle bar mechanism do not move, needle bar mechanism does not move up and down vertically like this, so upper thread is not through cloth, and feed mechanism still participates in feeding, thereby on cloth, form continuous wire jumper section, 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 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 separated object, thereby carries 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.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model fixed knot zygote and the minor structure schematic diagram that is slidably connected.
Fig. 3 is axle two surface texture schematic diagrames on the utility model.
Fig. 4 be in Fig. 1 swing part A-A to structural representation.
Fig. 5 is the utility model driving device structure schematic diagram.
Fig. 6 is that the utility model drive unit 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, 51-annular groove, 52-flange, 53-screwed hole, 6a-trip bolt, 6b-head is the trip bolt of taper, 6c-trip bolt, 7-bearing adapter sleeve, 8-cylinder-shaped compression spring, 9-rocker arm shaft, 10-inner rocker arm, 100-outer rocker arm, 101-roll sleeve bearing pin, 102-roll sleeve, 103-cylinder, 104-piston rod, 105-arm-tie, 106-screw, 107a-top tracheae, 107b-bottom tracheae.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
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, axle on this is divided into two sections, be axle 1 and upper axle 23, on this, axle 1 can drive feed mechanism and hook line mechanism motion, and 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, arranges can make diaxon realize separated and arrangement of clutch combination at upper axle 1 two ends relative with upper axle 23, and this arrangement of clutch comprises the swing part being driven by drive unit; By drive unit, move, can impel arrangement of clutch combination with separated, thereby make axle 1 realize separated 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 being 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 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 arrangement of clutch separation and combination like this, when arrangement of clutch in conjunction with time fixed knot zygote 4 can drive son 5 motions that are slidably connected.
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, it is the trip bolt 6b of taper that head is set on screwed hole 53, and the trip bolt 6b that this head is taper is stuck in taper axial notch 31 through screwed hole 53; When fixed knot zygote 4 drives the son 5 that is slidably connected to rotate, the son 5 that is slidably connected just can drive axle 23 to realize synchronous rotation like this.As corrective measure of the present utility model, 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, at bearing adapter sleeve 7 and the son that is slidably connected, cylinder-shaped compression spring 8 is set between 5, when arrangement of clutch in conjunction with time, cylinder-shaped compression spring 8 can be assisted be slidably connected son 5 and 4 combinations of fixed knot zygote, by fixed knot zygote 4, drives the son 5 that is slidably connected to rotate.
Swing part as shown in Figure 1, Figure 2, Figure 4 shows comprises the rocker arm shaft 9 being arranged on head shell 1, on rocker arm shaft 9, be fixedly installed inner rocker arm 10, on inner rocker arm 10, be fixedly connected with roll sleeve bearing pin 101, 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, roll sleeve bearing pin 101 swings and can drive the son 5 that is slidably connected to move around at axial direction, thereby make to be slidably connected son 5 and combinations separated with fixed knot zygote 4, realize separation and the combination of arrangement of clutch, final realization makes axle 1 and combination separated 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 to drive upper axle 1 and fixed knot zygote 4 to rotate, 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 to rotate, outer rocker arm 100 rotates and drives rocker arm shaft 9 to clockwise rotate, rocker arm shaft 9 clockwise rotates and drives inner rocker arm 10 to clockwise rotate simultaneously, 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 being slidably connected between son 5 auxiliary be slidably connected son 5 and 4 combinations of fixed knot zygote, by fixed knot zygote 4, drive the son 5 that is slidably connected to rotate, thereby axle 23 and upper axle 1 are realized synchronize rotation, at this moment, thread take-up mechanism, needle bar mechanism, feed mechanism and hook line mechanism are realized and 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 to rotate, outer rocker arm 100 rotates and drives rocker arm shafts 9 to rotate counterclockwise; rocker arm shaft 9 rotates counterclockwise and drives inner rocker arm 10 to rotate counterclockwise simultaneously; thus roll sleeve bearing pin 101 is swung left; make to be slidably connected sub 5 be moved to the left separated with fixed knot zygote 4; go up axle 1 separated with upper axle 23; at this moment go up axle 1 and be rotated further, so feed mechanism and hook line mechanism work on, continue to realize feeding; And upper axle 23 stops operating, so thread take-up mechanism and needle bar mechanism quit work, shank does not sting material motion up and down, by 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.
By reference to the accompanying drawings the utility model embodiment is explained in detail above; but the utility model is not limited to above-mentioned embodiment; to those skilled in the art; can also make some modification and improvement not departing under prerequisite of the present utility model, these also should be considered as belonging to protection domain of the present utility model.
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 two sections, go up axle one (2) and upper axle two (3), described upper axle one (2) and the axle center of upper axle two (3) are arranged on same axis direction, the two ends that described upper axle one (2) is relative with upper axle two (3) arrange and can make diaxon realize arrangement of clutch separated and combination, and described arrangement of clutch comprises the swing part being driven by drive unit.
2. according to the needle bar of sewing machine separating mechanism described in claim 1, it is characterized in that: described arrangement of clutch comprises the fixed knot zygote (4) being 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 at described upper axle two (3) arranges taper axial notch (31), on the described son that is slidably connected (5) surface, annular groove (51) is set, flange (52) in annular groove (51) both sides of the described son that is slidably connected (5) is upper arranges the screwed hole (53) corresponding with described taper axial notch (31) position, the trip bolt that head is taper (6b) is set on described screwed hole (53), described head is that the trip bolt (6b) of taper 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) arranging at the surperficial axial direction of described upper axle two (3) is 2 to 6, flange (52) in annular groove (51) both sides of the son that is slidably connected (5) is upper, and 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 the needle bar of sewing machine separating mechanism described in claim 2 or 3 or 4, it is characterized in that: bearing adapter sleeve (7) is set on described upper axle two (3), 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: at described swing part, comprise the rocker arm shaft (9) being arranged on head shell (1), on described rocker arm shaft (9), be fixedly installed inner rocker arm (10), on described inner rocker arm (10), be fixedly connected with roll sleeve bearing pin (101), on described roll sleeve bearing pin (101), roll sleeve (102) is set, 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 one 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 |
|---|---|---|---|
| CN201320567719.4U CN203429399U (en) | 2013-09-13 | 2013-09-13 | Sewing machine needle bar detaching mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320567719.4U CN203429399U (en) | 2013-09-13 | 2013-09-13 | Sewing machine needle bar detaching mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203429399U true CN203429399U (en) | 2014-02-12 |
Family
ID=50058448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320567719.4U Withdrawn - After Issue CN203429399U (en) | 2013-09-13 | 2013-09-13 | Sewing machine needle bar detaching mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203429399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498304A (en) * | 2013-09-13 | 2014-01-08 | 浙江百惠缝纫机有限公司 | Needle bar separation mechanism of sewing machine |
-
2013
- 2013-09-13 CN CN201320567719.4U patent/CN203429399U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498304A (en) * | 2013-09-13 | 2014-01-08 | 浙江百惠缝纫机有限公司 | Needle bar separation mechanism of sewing machine |
| CN103498304B (en) * | 2013-09-13 | 2015-12-16 | 浙江百惠缝纫机有限公司 | Needle bar of sewing machine separating mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140212 Effective date of abandoning: 20151216 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |