CN203602877U - Routing mechanism of sewing machine - Google Patents
Routing mechanism of sewing machine Download PDFInfo
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- CN203602877U CN203602877U CN201320724947.8U CN201320724947U CN203602877U CN 203602877 U CN203602877 U CN 203602877U CN 201320724947 U CN201320724947 U CN 201320724947U CN 203602877 U CN203602877 U CN 203602877U
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- routing
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- sewing machines
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- throwing mechanism
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Abstract
The utility model provides a routing mechanism of a sewing machine. The routing mechanism of the sewing machine comprises a first thread clamping device, an electromagnet, an actuating lever, a thread releasing connecting rod, a thread releasing shaft and a routing lever, wherein the first thread clamping device is installed on a machine shell of the sewing machine and is provided with a control rod extending downwards, an output shaft of the electromagnet is hinged to the actuating lever, the upper end of the actuating lever is installed on the machine shell of the sewing machine in a rotary mode through a pin shaft, one end of the thread releasing connecting rod is hinged to the actuating lever, the other end of the thread releasing connecting rod is hinged to a rocking lever, the rocking lever is fixedly connected with the thread releasing shaft, a thread releasing ejection rod is fixedly arranged on the thread releasing shaft, the top end of the thread releasing ejection rod is provided with an inclined surface, the inclined surface makes contact with a control rod of the first thread clamping device, and the thread releasing shaft is further connected with the routing lever. The routing mechanism of the sewing machine is driven by the electromagnet, and is simple in structure, low in failure rate, convenient to maintain and easy to assemble.
Description
Technical field
The utility model relates to the technical field of Sewing machines, relates in particular to a kind of type throwing mechanism of Sewing machines.
Background technology
Sewing machines has irreplaceable effect in life, along with scientific and technological development, Sewing machines also in continuous progress to reach better result of use.
Traditional sewing machine throwing mechanism is directly fixed on routing bar on thread tension releasing lever rod, what routing bar was used is steel wire, in routing process because rigidity is bad, steel wire vibrations can make upper thread lax, and suture needle place stays line oversize, and the residual the end of a thread of trimming rear wires is long, when withdrawal of needle, upper thread is received not tight, affect stitching, and the driving of its thread tension releasing lever is to drive by linkage transmission by workman's foot-on pedal, workman's labour intensity is large.
Chinese utility model patent CN202047244U discloses a kind of cam type throwing mechanism of flat seaming machine, comprise the throwing cam that is shaped with annular groove on line crossing bracket and wheel face, camshaft is connected by Timing Belt with upper axle by synchronous pulley, the inner side of Flat Seaming Machine Head column is shaped with pit, camshaft stretches out pit in column, and throwing cam is placed on camshaft external part admittedly; Parallel with camshaft and be fixed on pit through the line crossing bracket bearing pin of line crossing bracket axle sleeve, right line plate, the left top of crossing line plate and be loaded on line crossing bracket crossed, mistake line sheet is loaded in the draw-in groove of line crossing bracket and snaps onto in the annular groove of throwing cam, and torsion spring is equipped with on the right side of line crossing bracket; For the spacing flexible gag lever post of line crossing bracket is stretched out to pit in column.Although this patent discloses a kind of type throwing mechanism, but can not solve some technical problems of above-mentioned traditional Sewing machines, and this structure of this patent is difficult for assembling, and fault rate is high, so need a kind of simple in structure, failure rate is low, the sewing machine throwing mechanism that easy to adjust, routing is stable.
Utility model content
The technical problems to be solved in the utility model is that suture needle place that a kind of effective control Sewing machines is provided stays line length, reduces the electric drive Sewing machines of fault rate, to overcome the above-mentioned defect of prior art.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of type throwing mechanism of Sewing machines, comprise the first tension disk being arranged on sewing machine case, the first tension disk is provided with a control lever to downward-extension, also comprise electromagnet, starting handle, loose ends connecting rod, thread tension releasing lever rod and routing bar, output shaft and the starting handle of wherein said electromagnet are hinged, the upper end of described starting handle is installed in rotation on sewing machine case by a bearing pin, one end of loose ends connecting rod is also hinged with starting handle, the other end of loose ends connecting rod and a rocking bar are hinged, rocking bar is fixedly connected on thread tension releasing lever rod, on thread tension releasing lever rod, be also fixed with a loose ends push rod, the top of loose ends push rod is provided with inclined-plane, the control lever of described inclined-plane and the first tension disk contacts, thread tension releasing lever rod is also connected with routing bar.
Preferably, between described output shaft and starting handle, be connected with successively connector, connecting pin a, jointing, connecting pin b and oscillating bearing, between output shaft and connector, between connector and connecting pin a, between connecting pin a and jointing, be and be fixedly connected with, jointing and connecting pin b are hinged, and connecting pin b and oscillating bearing are threaded.
Further, described oscillating bearing is the universal bearing matching by bulb and ball-and-socket.
Further, on the output shaft of described electromagnet, be also provided with crash roll.
Further, be fixedly connected with a routing crank on described thread tension releasing lever rod, described routing bar is arranged on sewing machine case by a rotating shaft, and described routing crank is flexibly connected with described routing bar.
Further, described routing crank is provided with a chute, on described routing bar, fixes a sliding pin, and described chute matches with sliding pin.
Further, on described routing bar, be connected by screw an adjustable plate, described adjustable plate is provided with slotted hole and matches with described screw, and described sliding pin is arranged on adjustable plate.
Further, on described loose ends connecting rod, be also provided with a magnet, on the position relative with magnet, be also provided with a hard-wired sensor.
As mentioned above, the type throwing mechanism of Sewing machines of the present utility model, has following beneficial effect:
This mechanism is by solenoid actuated, and simple in structure, failure rate is low, easy to maintenance, assembling is simple, by the startup of left and right pedal control Sewing machines, routing, end, effectively prevented the long problem of suture needle place suture; This mechanism is provided with crash roll and oscillating bearing simultaneously, and crash roll effectively reduces noise, and oscillating bearing has reduced the difficulty of processing of part.
Accompanying drawing explanation
Fig. 1 is the utility model assembly drawing.
Fig. 2 is the utility model schematic diagram.
Fig. 3 is the working state schematic representation of the utility model on Sewing machines.
Fig. 4 is the first type of drive schematic diagram of the utility model routing bar.
Fig. 5 is the second type of drive schematic diagram of the utility model routing bar.
Fig. 6 is the third type of drive schematic diagram of the utility model routing bar.
In figure: 11 head 12 supports
13 platen 14 second tension disks
15 cross terminal 21 electromagnet
22 take-off lever 221 crash rolls
23 starting handle 24 loose ends connecting rods
25 jack back 26 thread tension releasing lever rods
27 routing bar 271 sliding pins
28 loose ends push rod 281 inclined-planes
3 first tension disk 31 control levers
41 connector 42 connecting pin a
43 jointing 44 connecting pin b
45 oscillating bearing 451 bulbs
452 ball-and-socket 51 routing cranks
511 chute 52 adjustable plates
521 slotted hole 61 magnet
62 sensor 7 sutures
81 gear 82 gears
The specific embodiment
Structure that Figure of description illustrates, ratio, size etc., all contents in order to coordinate description to disclose only, understand and read for person skilled in the art scholar, not in order to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, all should still drop in the scope that technology contents that the utility model discloses can contain.Simultaneously, in this description, quote as " on ", the term such as D score, 'fornt', 'back', " centre ", also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, changing under technology contents, when being also considered as the enforceable category of the utility model without essence.
Sewing machines mainly comprises head 11, support 12, head 11 is arranged on the platen 13 of support 12, if Fig. 1 is to the type throwing mechanism of the utility model Sewing machines as shown in Fig. 3, comprise the first tension disk 3 on the casing that is arranged on head 1, the first tension disk 3 is provided with a control lever 31 to downward-extension, described type throwing mechanism also comprises electromagnet 21, starting handle 23, loose ends connecting rod 24, thread tension releasing lever rod 26 and routing bar 27, output shaft 22 and the starting handle 23 of wherein said electromagnet 21 are hinged, the upper end of described starting handle 23 is installed in rotation on sewing machine case by a bearing pin, one end of loose ends connecting rod 24 is also hinged with starting handle 23, the other end of loose ends connecting rod 24 and a rocking bar 25 are hinged, rocking bar 25 is fixedly connected on thread tension releasing lever rod 26, on thread tension releasing lever rod 26, be also fixed with a loose ends push rod 28, the top of loose ends push rod 28 is provided with inclined-plane 281, the control lever 31 of described inclined-plane 281 and the first tension disk 3 contacts, thread tension releasing lever rod 26 is also connected with routing bar 27.
Because Sewing machines can be followed Vibration Condition and have unavoidably error because of between the each parts of impact of precision when mounted in the time of work, in the time of work, there is the situations such as bite in bad vibration and alignment error Hui Shiben mechanism, so for fear of the generation of the situations such as bite, between described output shaft 22 and starting handle 23, be connected with successively connector 41, connecting pin a42, jointing 43, connecting pin b44 and oscillating bearing 45, between output shaft 22 and connector 41, between connector 41 and connecting pin a42, between connecting pin a42 and jointing 43, be and be fixedly connected with, jointing 43 and connecting pin b44 are hinged, connecting pin b44 and oscillating bearing 45 are for being threaded.Further, described oscillating bearing 45 is the universal bearings that match by bulb 451 and ball-and-socket 452, and universal bearing has further improved the flexibility of mechanism; On the output shaft 22 of electromagnet 21, be also provided with crash roll 221.Therefore, had the alleviation structure of connection and the vibration of more above-mentioned activities, this mechanism is just difficult to occur the phenomenons such as bite in the running, greatly reduces fault rate.
The position of above-mentioned loose ends connecting rod 24 on rocking bar 25 can affect the routing direction of routing bar 27, in real work, as shown in Figure 3, routing bar 27 is arranged on the second tension disk 14 and crosses between terminal 15, so routing bar 27 to the right routing just can play due effect, therefore will analyze from two kinds of situations, the first situation is the top that loose ends connecting rod 24 is hinged on rocking bar 25, and the second situation is the bottom that loose ends connecting rod 24 is hinged on rocking bar 25.
In the first situation: in conjunction with Fig. 2 and Fig. 4, in the time that loose ends connecting rod 24 travels forward, rocking bar 25 drives thread tension releasing lever rod 26 to rotate counterclockwise, now routing bar 27 will clockwise rotate guarantee routing to the right, this situation has numerous embodiments, in the present embodiment, the type of drive of preferred a kind of routing bar 27 as shown in Figure 4 completes routing, be on described thread tension releasing lever rod 26, to be fixedly connected with a routing crank 51, described routing bar 27 is arranged on sewing machine case by a rotating shaft, and described routing crank 51 is flexibly connected with described routing bar 27.Further, described routing crank 51 is provided with a chute 511, fixes a sliding pin 271 on described routing bar 27, and described chute 511 matches with sliding pin 271.In order to control the movement angle of routing bar 27, on described routing bar 27, be connected by screw an adjustable plate 52, described adjustable plate 52 is provided with slotted hole 521 and matches with described screw, and described sliding pin 271 is arranged on adjustable plate 52.In the time of actual installation, because screw can slide in slotted hole 521, so adjustable plate 52 is moved right, sliding pin 271 is during near chute 511 right side, and the movement angle of routing bar 27 just diminishes, and routing amount also diminishes; Adjustable plate 52 is moved to the left, and sliding pin 271 is during near chute 511 left side, and it is large that the movement angle of routing bar 27 just becomes, and it is large that routing amount also just becomes, and concrete movement angle is determined and regulated according to actual conditions.
In addition, the implementation method that also has other of routing bar 27, the type of drive of the second routing bar 27 of for example the first situation as shown in Figure 5, one gear 81 is installed on thread tension releasing lever rod 26, one gear 82 is installed on routing bar 27, and gear 81 and gear 82 are meshed, in the time that thread tension releasing lever rod 26 driven gears 81 rotate counterclockwise, gear 82 can clockwise rotate, and this structure has also realized the routing to the right of routing bar 27.
In the second situation: the third type of drive of routing bar 27 as shown in Figure 6, in the time that loose ends connecting rod 24 travels forward, rocking bar 25 drives thread tension releasing lever rod 26 to clockwise rotate, now only thread tension releasing lever 27 need to be fixed on to the routing to the right that can realize thread tension releasing lever 27 on thread tension releasing lever rod 26, not need other structures.
The first tension disk described in the utility model is relative clamping with the second tension disk to the clamping of suture 7, and while clamping, suture 7 still can move on the first tension disk and the second tension disk.In the time using with the Sewing machines of this device, schematic diagram as shown in Figure 2, open the power supply of Sewing machines, step on backward right side pedal, electromagnet 21 pushes away forward, step on again left side pedal, presser feet on head 11 lifts, sewing is placed on to suture needle below and prepares sewing, now push ahead because of electromagnet 21, by output shaft 22, starting handle 23 is clockwise rotated, the rotation of starting handle 23 is pushed ahead loose ends connecting rod 24, rocking bar 25 drives thread tension releasing lever rod 26 to do counterclockwise motion, loose ends push rod 28 rotates counterclockwise, because the effect of inclined-plane 281 and control lever 31, the first tension disk 3 is unclamped suture 7 by jack-up, routing crank 51 rotates counterclockwise, routing bar 27 clockwise rotates, the top routing of routing bar 27, in conjunction with Fig. 1, Fig. 3, all pulled to the right through the suture 7 on the second tension disk 14 with through the suture 7 of the first tension disk 3, realized suture needle place the end of a thread is pulled back and avoids outside suture 7 long, and reserved some suture surpluses between the second tension disk 14 and the first tension disk 3, broken string is avoided in the leeway of having left buffering to sewing next time.Meanwhile, this mechanism is also provided with a magnet 61 on described loose ends connecting rod 24, on the position relative with magnet 61, be also provided with a hard-wired sensor 62, because above-mentioned action loose ends connecting rod 24 can be pushed ahead, magnet 61 and sensor 62 are misplaced, after dislocation, sensor 62 is responded to less than the signal on magnet 61, so Sewing machines can not start duty.
When routing work completes and after sewing placed, step on forward again right side pedal, electromagnet 21 bounces back and drives sleeve mechanism to reset, now sensor 62 is relative with magnet 61, sense signal, the first tension disk 3 clamps, the second tension disk 14 unclamps, further step on forward right side pedal, Sewing machines is started working, first make left side stitching, now the first tension disk 3 and the second tension disk 14 are clamped condition, in the time being sewn into first noose position, the second tension disk 14 unclamps, the first tension disk 3 clamps, the right side stitching of sewing again after the first noose finishes, now the first tension disk 3 and the second tension disk 14 are again in clamped condition, during to the second noose, the second tension disk 14 unclamps, the first tension disk 3 clamps, so far sewing finishes, electromagnet 21 automatically pushes away forward and again drives sleeve mechanism, the first tension disk 3, the second tension disk 14 all unclamps suture, routing bar 27 routings, step on left side pedal, take out sewing.
In sum, the utility model device, can solve sewing machine throwing mechanism complexity, problem that fault rate is high.So, aspect sewing machine technique, have very high promotional value and use meaning thereby the utility model has effectively overcome practical problems more of the prior art.
Above-mentioned embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.The utility model also many aspects can also improve under the prerequisite without prejudice to overall thought, all can, under spirit of the present utility model and category, can above-described embodiment be modified or be changed for person skilled in the art scholar.Therefore, have in technical field under such as and conventionally know that the knowledgeable modifies or changes not departing from all equivalences that complete under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (8)
1. the type throwing mechanism of a Sewing machines, comprise the first tension disk (3) being arranged on sewing machine case, the first tension disk (3) is provided with a control lever to downward-extension (31), it is characterized in that: also comprise electromagnet (21), starting handle (23), loose ends connecting rod (24), thread tension releasing lever rod (26) and routing bar (27), the output shaft (22) of wherein said electromagnet (21) is hinged with starting handle (23), the upper end of described starting handle (23) is installed in rotation on sewing machine case by a bearing pin, one end of loose ends connecting rod (24) is also hinged with starting handle (23), the other end of loose ends connecting rod (24) and a rocking bar (25) are hinged, rocking bar (25) is fixedly connected on thread tension releasing lever rod (26), on thread tension releasing lever rod (26), be also fixed with a loose ends push rod (28), the top of loose ends push rod (28) is provided with inclined-plane (281), the control lever (31) of described inclined-plane (281) and the first tension disk (3) contacts, thread tension releasing lever rod (26) is also connected with routing bar (27).
2. the type throwing mechanism of Sewing machines according to claim 1, it is characterized in that: between described output shaft (22) and starting handle (23), be connected with successively connector (41), connecting pin a(42), jointing (43), connecting pin b(44) and oscillating bearing (45), between output shaft (22) and connector (41), connector (41) and connecting pin a(42) between, connecting pin a(42) and jointing (43) between be and be fixedly connected with, jointing (43) and connecting pin b(44) be hinged, connecting pin b(44) and oscillating bearing (45) be threaded.
3. the type throwing mechanism of Sewing machines according to claim 2, is characterized in that: described oscillating bearing (45) is the universal bearing matching by bulb (451) and ball-and-socket (452).
4. the type throwing mechanism of Sewing machines according to claim 1, is characterized in that: on the output shaft (22) of described electromagnet (21), be also provided with crash roll (221).
5. the type throwing mechanism of Sewing machines according to claim 1, it is characterized in that: on described thread tension releasing lever rod (26), be fixedly connected with a routing crank (51), described routing bar (27) is arranged on sewing machine case by a rotating shaft, and described routing crank (51) is flexibly connected with described routing bar (27).
6. the type throwing mechanism of Sewing machines according to claim 5, it is characterized in that: described routing crank (51) is provided with a chute (511), on described routing bar (27), fix a sliding pin (271), described chute (511) matches with sliding pin (271).
7. the type throwing mechanism of Sewing machines according to claim 6, it is characterized in that: on described routing bar (27), be connected by screw an adjustable plate (52), described adjustable plate (52) is provided with slotted hole (521) and matches with described screw, and described sliding pin (271) is arranged on adjustable plate (52).
8. the type throwing mechanism of Sewing machines according to claim 1, is characterized in that: on described loose ends connecting rod (24), be also provided with a magnet (61), be also provided with a hard-wired sensor (62) on the position relative with magnet (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320724947.8U CN203602877U (en) | 2013-07-10 | 2013-11-15 | Routing mechanism of sewing machine |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320411569 | 2013-07-10 | ||
| CN201320411569.8 | 2013-07-10 | ||
| CN201320724947.8U CN203602877U (en) | 2013-07-10 | 2013-11-15 | Routing mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203602877U true CN203602877U (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320724947.8U Withdrawn - After Issue CN203602877U (en) | 2013-07-10 | 2013-11-15 | Routing mechanism of sewing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN203602877U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088096A (en) * | 2014-06-27 | 2014-10-08 | 台州拓卡奔马机电科技有限公司 | Driving device for thread knotting and presser-foot-lifted thread trimming and straight buttonhole machine |
| CN104099726A (en) * | 2014-06-24 | 2014-10-15 | 台州拓卡奔马机电科技有限公司 | Driving mechanism for thread sewing and presser foot lifting thread-scissoring and buttonholing machine |
| CN104278444A (en) * | 2013-07-10 | 2015-01-14 | 拓卡奔马机电科技有限公司 | Yarn bonding mechanism for sewing machine |
-
2013
- 2013-11-15 CN CN201320724947.8U patent/CN203602877U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104278444A (en) * | 2013-07-10 | 2015-01-14 | 拓卡奔马机电科技有限公司 | Yarn bonding mechanism for sewing machine |
| CN104278444B (en) * | 2013-07-10 | 2016-06-15 | 拓卡奔马机电科技有限公司 | The type throwing mechanism of sewing machine |
| CN104099726A (en) * | 2014-06-24 | 2014-10-15 | 台州拓卡奔马机电科技有限公司 | Driving mechanism for thread sewing and presser foot lifting thread-scissoring and buttonholing machine |
| CN104099726B (en) * | 2014-06-24 | 2022-07-05 | 拓卡奔马机电科技有限公司 | Driving mechanism for routing, lifting presser foot and trimming and buttonhole sewing machine |
| CN104088096A (en) * | 2014-06-27 | 2014-10-08 | 台州拓卡奔马机电科技有限公司 | Driving device for thread knotting and presser-foot-lifted thread trimming and straight buttonhole machine |
| CN104088096B (en) * | 2014-06-27 | 2022-06-24 | 拓卡奔马机电科技有限公司 | Driving device for routing, lifting presser foot and trimming and flat buttonhole sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TOPCUT-BULLMER MECHANICAL AND ELECTRICAL TECHNOLOG Free format text: FORMER NAME: TAIZHOU TOPCUT BULLMER MECHANICAL AND ELECTRICAL TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 317000 Taizhou, Jiangsu Province, the Yangtze River in the city of Jiangnan street, No. 71 River Road, No. 181, No. Patentee after: BULLMER ELECTROMECHANICAL TECHNOLOGY CO., LTD. Address before: 317000 Taizhou, Jiangsu Province, the Yangtze River in the city of Jiangnan street, No. 71 River Road, No. 181, No. Patentee before: Taizhou Topcut Bullmer Mechanical and Electrical Technology Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140521 Effective date of abandoning: 20160615 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |