CN203498615U - Stitch conversion mechanism for industrial zigzag sewing machine - Google Patents
Stitch conversion mechanism for industrial zigzag sewing machine Download PDFInfo
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- CN203498615U CN203498615U CN201320566188.7U CN201320566188U CN203498615U CN 203498615 U CN203498615 U CN 203498615U CN 201320566188 U CN201320566188 U CN 201320566188U CN 203498615 U CN203498615 U CN 203498615U
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- stitching
- shifting block
- sewing machine
- zigzag sewing
- connecting rod
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Abstract
The utility model relates to a stitch conversion mechanism for an industrial zigzag sewing machine. The stitch conversion mechanism comprises a main shaft, a stitch control cam mechanism, a slider-crank mechanism and a shifting block mechanism. The main shaft is transversely arranged and a first helical wheel gear is sleeved outside the main shaft. The stitch control cam mechanism is arranged vertically below the main shaft and is composed of a stitch control cam, a second helical wheel gear, an eccentric sleeve and a camshaft. The slider-crank mechanism is composed of a balancing point connecting rod, a first swinging rod, a sliding block, a sliding block seat and a needle rod frame. The balancing point connecting rod is parallelly arranged below the main shaft. The first swinging rod, the sliding block and the sliding block seat are sequentially arranged at the tail end of the balancing point connecting rod from the inside to the outside. The needle rod frame perpendicular to a horizontal surface is arranged at the head portion of the balancing point connecting rod. The shifting block mechanism is composed of a lower shifting block seat, a driving lever, a locking nut, a connection plate and an upper shifting block seat. The stitch conversion mechanism for the industrial zigzag sewing machine can be assembled on a conventional industrial zigzag sewing machine and is simple in structure, attractive in stitches and low in cost and is convenient to use so that the stitch conversion mechanism has considerable market potential.
Description
Technical field
The utility model relates to Zigzag sewing machine field, relates in particular to the switching mechanism of a kind of industrial Zigzag sewing machine stitching.
Background technology
Industry Zigzag sewing machine is the widely used a kind of sewing devices of production industry such as China's clothes, shoes and hats, case and bag, knitting, leather, with aesthetic property and the diversity of its stitching, in China's industrial sewing machine field, occupies indispensable status.
The method (being mechanism's inline transmission campaign matching relationship) realizing by its different stitchings is divided, this machine can be divided into two classes on the market: a class is the industrial Zigzag sewing machine that computer is controlled, it uses balancing point, feeding, lift tooth three motion matching relationship adds mechanical actuating mechanism by controlling motor, by computer, carry out programme-control, realize the variation of stitching, its style can reach hundreds of kind, and such machine is high-grade machine, expensive, can not meet the needs of multi-level user.
Another kind of is mechanical industrial Zigzag sewing machine, it uses balancing point, feeding, lifts tooth three motion matching relationship by the organic motion cooperation of mechanical transmission mechanism (cam mechanism, linkage, slider-crank mechanism etc.), form a kind of definite inside-connecting relation, this machine is for making the stitching of single or limited kinds, because its price is low, maintenance operation is convenient, adds the extensive versatility of stitching, and such machine still occupies sizable share on market as special plane.
But, the mechanical industrial Zigzag sewing machine of above-mentioned Equations of The Second Kind, the conversion usual method of its stitching is to change stitching to control cam, or by fork shift switching cam, the former is high to operator's specification requirement, the existing version of the latter is mostly more complicated, the industrial machine for long-time uninterrupted operation, its poor work stability, and after making continuously middle conversion line mark, the mid point of stitching in balancing point direction do not dock, and often produces inconsistent phenomenon, affects attractive in appearance.
Summary of the invention
Technical problem to be solved in the utility model is, the industrial Zigzag sewing machine stitching switching mechanism that provides a kind of stitching conversion not misplace.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions: the switching mechanism of a kind of industrial Zigzag sewing machine stitching, by main shaft, stitching, controlling cam mechanism, slider-crank mechanism and shifting block mechanism forms, described main shaft horizontally set, its outer cover is equipped with the first helical gear, described stitching is controlled cam mechanism and is longitudinally arranged on main shaft below, it is controlled cam, the second helical gear, eccentric bushing and camshaft by stitching and forms, described stitching is controlled cam, the second helical gear and eccentric bushing and is successively set on camshaft outside, the first helical gear engagement of the second helical gear and main shaft outside, described slider-crank mechanism is by the balancing point connecting rod that is set in parallel in main shaft below, be successively set on from inside to outside the first fork of balancing point connecting rod end, slide block, take-up housing and be arranged on balancing point link rod head and form perpendicular to the needle bar frame of horizontal plane, on described needle bar frame, be provided with for the shank of eedle is installed, described the first fork is connected with the fork axle that is arranged on main shaft top, this fork axle and stitching are controlled cam mechanism and are parallel to each other, its outer setting has extension spring, sector gear and the second fork, described extension spring contacts with the working curved surface that stitching is controlled cam, described sector gear be arranged on the engagement of its outside balladeur train, and described the first fork, the second fork and sector gear are separate layout, and circumferentially adjustable, described balladeur train is fixedly installed on the slide teeth wheel shaft being parallel to each other with fork axle, balladeur train the tip of the axis is provided with crank, described crank is connected with balancing point connecting rod by connecting rod, described shifting block mechanism is comprised of lower of shifting block, driving lever, locking nut, connecting plate and the shifting block seat of honour, lower of described shifting block is fixedly installed on driving lever bottom, lower of shifting block is connected with balladeur train, the shifting block seat of honour and connecting plate are socketed in the driving lever outside of lower top of shifting block from bottom to top successively, and fastening by locking nut.
Preferably, described stitching is controlled between cam and camshaft and is connected by key.
Preferably, the contoured surface of described stitching control cam is comprised of two sections of different working curved surfaces.
Preferably, between described slide block and take-up housing, by slider pin, be connected, between the first fork and balancing point connecting rod, by roller and roller pin, be flexibly connected.
Preferably, between described balancing point connecting rod and needle bar frame, by needle bar frame pin, be connected.
Preferably, described sector gear has two.
Preferably, between described crank and connecting rod, by little pin, connect.
Preferably, between described balladeur train and slide teeth wheel shaft, be provided with feather key.
Preferably, the driving lever between lower of described shifting block and the shifting block seat of honour is equipped with stage clip outward.
Preferably, both sides, the described shifting block seat of honour are provided with the shifting block slide being slidably connected with it.
Compared with prior art, usefulness of the present utility model is: the switching mechanism of this industrial Zigzag sewing machine stitching is the economical switching mechanism of making to measure for three kinds of stitchings of the industry widespread demand such as clothes, case and bag, leather, can on traditional industry Zigzag sewing machine, install, in limited envelop of function, substitute the Zigzag sewing machine that expensive computer is controlled, meet the needs of medium and small garment manufacturing industry, for uniform machines, simple due to this mechanism, easy to use, stitching is attractive in appearance, and cost is low, thereby has much market potential.
accompanying drawing explanation:
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Fig. 1 is that the switching mechanism of the utility model industry Zigzag sewing machine stitching splits structural representation.
Fig. 2 is 2 bent FELL STITCH schematic diagrames of these industrial Zigzag sewing machine stitching switching mechanism four pin type one steps;
Fig. 3 is 3 bent FELL STITCH schematic diagrames of these industrial Zigzag sewing machine stitching switching mechanism four pin type two steps;
Fig. 4 is that 2 of this industrial Zigzag sewing machine stitching switching mechanism four pin type one steps combine stitching schematic diagrames with 3 tortuous seams of two steps;
Fig. 5 is 2 bent FELL STITCH schematic diagrames of these industrial Zigzag sewing machine stitching switching mechanism six pin type one steps;
Fig. 6 is 4 bent FELL STITCH schematic diagrames of these industrial Zigzag sewing machine stitching switching mechanism six pin type three steps;
Fig. 7 is that 2 of this industrial Zigzag sewing machine stitching switching mechanism six pin type one steps combine stitching schematic diagrames with 4 tortuous seams of three steps.
In figure: 1, main shaft; 2, the first helical gear; 3, stitching control gear; 4, the second helical gear; 5, eccentric bushing; 6, the first fork; 7, key; 8, camshaft; 9, slider pin; 10, slide block; 11, roller pin; 12, roller; 13, extension spring; 14, the second fork; 15, take-up housing; 16, fork axle; 17, slide teeth wheel shaft; 18, connecting rod; 19, feather key; 20, fork connecting rod; 21, the shifting block seat of honour; 22, little pin; 23, crank; 24, sector gear; 25, connecting plate; 26, balladeur train; 27, shifting block is lower; 28, needle bar frame; 29, needle bar frame pin; 30, eedle; 31, shank; 32, shifting block slide; 33, stage clip; 34, driving lever; 35, locking nut.
the specific embodiment:
Below in conjunction with the drawings and the specific embodiments, the utility model is described in detail:
The switching mechanism of a kind of industrial Zigzag sewing machine stitching shown in Fig. 1, controls cam mechanism, slider-crank mechanism and shifting block mechanism by main shaft 1, stitching and forms, described main shaft 1 horizontally set, and its outer cover is equipped with the first helical gear 2, described stitching is controlled cam mechanism and is longitudinally arranged on main shaft 1 below, it controls cam 3 by stitching, the second helical gear 4, eccentric bushing 5 and camshaft 8 form, described stitching is controlled cam 3, the second helical gear 4 and eccentric bushing 5 are successively set on the outside described stitching of camshaft 8 and control between cam 3 and camshaft 8 and be connected by key 7, eccentric bushing 5 is for regulating the fit clearance of the first helical gear 2 and the second helical gear 4, and the contoured surface that described stitching is controlled cam 3 is comprised of two sections of different working curved surfaces, synchronism in the time of can controlling two kinds of stitching conversions, the inconvenience of pendulum position guarantees to begin, and can determine amplitude of oscillation size, in a week of cam work, determine the number of times of balancing point, guarantee when make by both stitchings of multistage combination time, align in pin position, left and right, described the second helical gear 4 meshes with the first helical gear 2 of main shaft 1 outside, described slider-crank mechanism is by the balancing point connecting rod 20 that is set in parallel in main shaft 1 below, be successively set on from inside to outside the first fork 6 of balancing point connecting rod 20 ends, slide block 10, take-up housing 15 and be arranged on balancing point connecting rod 20 heads and form perpendicular to the needle bar frame 28 of horizontal plane, between described slide block 10 and take-up housing 15, by slider pin 9, be connected, between the first fork 6 and balancing point connecting rod 20, by roller 12 and roller pin 11, be flexibly connected, on described needle bar frame 28, be provided with for the shank 31 of eedle 30 is installed, described the first fork 6 is connected with the fork axle 16 that is arranged on main shaft 1 top, this fork axle 16 is controlled cam mechanism with stitching and is parallel to each other, its outer setting has extension spring 13, sector gear 24 and the second fork 14, described extension spring 13 contacts with the working curved surface that stitching is controlled cam 3, described sector gear 24 has two, the balladeur train 26 outside with being arranged on it meshes, between sector gear 24 and balladeur train 26, adopt the fixed axis gear kind of drive, it is fixed than the needs of transmission and clutch action to guarantee, and described the first fork 6, the second fork 14 and sector gear 24 are separate layout, and circumferentially adjustable, described balladeur train 26 is fixedly installed on the slide teeth wheel shaft 17 being parallel to each other with fork axle 16, between balladeur train 26 and slide teeth wheel shaft 17, be provided with feather key 19, guarantee its axially movable accuracy, the end of slide teeth wheel shaft 17 is provided with crank 23, described crank 23 is connected with balancing point connecting rod 20 by connecting rod 18, and by little pin 22, connect between described crank 23 and connecting rod 18, between balancing point connecting rod 20 and needle bar frame 28, by needle bar frame pin 29, be connected, the size that has guaranteed balancing point amplitude is adjustable, by changing the angle of take-up housing 15, just the size of the adjustable amplitude of oscillation, compared with other mechanism on the market, the reliability with amplitude of oscillation size adjustment, described shifting block mechanism is comprised of lower 27 of shifting block, driving lever 34, locking nut 35, connecting plate 25 and the shifting block seat of honour 21, lower 27 of described shifting block is fixedly installed on driving lever 34 bottoms, lower 27 of shifting block is connected with balladeur train 26, the shifting block seat of honour 21 and connecting plate 25 are socketed in driving lever 34 outsides of lower 27 tops of shifting block from bottom to top successively, and fastening by locking nut 35, and the driving lever between lower 27 of described shifting block and the shifting block seat of honour 21 34 is outer is equipped with stage clip 33, and 21 both sides, the shifting block seat of honour are provided with the shifting block slide 32 being slidably connected with it.
During work, main shaft 1 moves through part the first helical gear 2 alternating axis and is transferred to the second helical gear 4, by camshaft 8 and key 7, be transferred to stitching again and control cam 3, by roller 12 and the first fork 6, the second fork 14, two sector gears 24 are swung, then pass through by needle bar frame pin 29, balancing point connecting rod 20, little pin, connecting rod 18, crank 23, slider pin 9, slide block 10, take-up housing 15, the composite structure that balladeur train 26 forms, wherein balladeur train 26 meshes with two sector gears 24 respectively, form two and overlap independently driving-chain, and can not work simultaneously, there is interlock function, sleeve mechanism number of degrees of freedom, is 1, make the motion of transmission there is uniqueness.
Its specific works principle is as follows, and the extensive and conventional stitching of rag trade is industrial bent FELL STITCH 1 step 2 points, 3 of two steps and 3 step 4 points.If accompanying drawing 2 is to as shown in accompanying drawing 4, for 2 of steps and 3 combinations of two steps, both stitching something in common have been a stitching design cycle all to need four pins, respective needle position is a-b-c-d, determine that part stitching control cam 3 often turns around, shank 31 drives eedle 30 to complete the wobble cycle corresponding with the stitching design cycle, draw thus the drive connection of main shaft 1 and stitching control cam 3, when main shaft 1 turns four circles, stitching is controlled protruding 3 and is turned around, and gearratio is that the gearratio of 4:1. the first helical gear 2 and the second helical gear 4 is 4:1; In like manner, for 2 of steps and 4 combinations of three steps, if accompanying drawing 5 is to as shown in accompanying drawing 7, both are at stitching something in common, completing a stitching design cycle all needs six pins, respective needle position is a-b-c-d-e-f, the gearratio of the first helical gear 2 and the second helical gear 4 is 6:1, stitching is controlled on cam 3 two sections of different working curved surfaces, it is corresponding above-mentioned two groups of different stitchings respectively, pendulum position by the convertible transmission mechanism control pin of two covers, the amplitude of oscillation and beginning pendulum point, with other mechanism of Sewing machines has coordinated stitching become to stitch.
The switching mechanism of this industrial Zigzag sewing machine stitching is the economical switching mechanism of making to measure for three kinds of stitchings of the industry widespread demand such as clothes, case and bag, leather, can on traditional industry Zigzag sewing machine, install, in limited envelop of function, substitute the Zigzag sewing machine that expensive computer is controlled, meet the needs of medium and small garment manufacturing industry, for uniform machines, simple due to this mechanism, easy to use, stitching is attractive in appearance, cost is low, thereby has much market potential.
It is emphasized that: be only preferred embodiment of the present utility model above, not the utility model is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.
Claims (10)
1. an industrial Zigzag sewing machine stitching switching mechanism, controls cam mechanism, slider-crank mechanism and shifting block mechanism by main shaft (1), stitching and forms, and it is characterized in that: described main shaft (1) horizontally set, and its outer cover is equipped with the first helical gear (2), described stitching is controlled cam mechanism and is longitudinally arranged on main shaft (1) below, it is controlled cam (3), the second helical gear (4), eccentric bushing (5) and camshaft (8) by stitching and forms, described stitching is controlled cam (3), the second helical gear (4) and eccentric bushing (5) and is successively set on camshaft (8) outside, the first helical gear (2) engagement that the second helical gear (4) is outside with main shaft (1), described slider-crank mechanism is by the balancing point connecting rod (20) that is set in parallel in main shaft (1) below, be successively set on from inside to outside first fork (6) of balancing point connecting rod (20) end, slide block (10), take-up housing (15) and be arranged on balancing point connecting rod (20) head and form perpendicular to the needle bar frame (28) of horizontal plane, on described needle bar frame (28), be provided with the shank (31) for eedle (30) are installed, described the first fork (6) is connected with the fork axle (16) that is arranged on main shaft (1) top, this fork axle (16) is controlled cam mechanism with stitching and is parallel to each other, its outer setting has extension spring (13), sector gear (24) and the second fork (14), described extension spring (13) contacts with the working curved surface that stitching is controlled cam (3), described sector gear (24) be arranged on the engagement of its outside balladeur train (26), and described the first fork (6), the second fork (14) and sector gear (24) are separate layout, and circumferentially adjustable, described balladeur train (26) is fixedly installed on the slide teeth wheel shaft (17) being parallel to each other with fork axle (16), the end of slide teeth wheel shaft (17) is provided with crank (23), described crank (23) is connected with balancing point connecting rod (20) by connecting rod (18), described shifting block mechanism is comprised of shifting block lower (27), driving lever (34), locking nut (35), connecting plate (25) and the shifting block seat of honour (21), described shifting block lower (27) is fixedly installed on driving lever (34) bottom, shifting block lower (27) is connected with balladeur train (26), the shifting block seat of honour (21) and connecting plate (25) are socketed in driving lever (34) outside of lower (27) top of shifting block from bottom to top successively, and fastening by locking nut (35).
2. industrial Zigzag sewing machine stitching according to claim 1 switching mechanism, is characterized in that: described stitching is controlled between cam (3) and camshaft (8) and is connected by key (7).
3. industrial Zigzag sewing machine stitching according to claim 1 switching mechanism, is characterized in that: the contoured surface that described stitching is controlled cam (3) is comprised of two sections of different working curved surfaces.
4. industrial Zigzag sewing machine stitching according to claim 1 switching mechanism, it is characterized in that: between described slide block (10) and take-up housing (15), by slider pin (9), be connected, between the first fork (6) and balancing point connecting rod (20), by roller (12) and roller pin (11), be flexibly connected.
5. industrial Zigzag sewing machine stitching according to claim 1 switching mechanism, is characterized in that: between described balancing point connecting rod (20) and needle bar frame (28), by needle bar frame pin (29), be connected.
6. industrial Zigzag sewing machine stitching according to claim 1 switching mechanism, is characterized in that: described sector gear (24) has two.
7. industrial Zigzag sewing machine stitching according to claim 1 switching mechanism, is characterized in that: between described crank (23) and connecting rod (18), by little pin (22), connect.
8. industrial Zigzag sewing machine stitching according to claim 1 switching mechanism, is characterized in that: between described balladeur train (26) and slide teeth wheel shaft (17), be provided with feather key (19).
9. industrial Zigzag sewing machine stitching according to claim 1 switching mechanism, is characterized in that: the outer stage clip (33) that is equipped with of driving lever (34) between described shifting block lower (27) and the shifting block seat of honour (21).
10. according to the industrial Zigzag sewing machine stitching switching mechanism described in claim 1 or 9, it is characterized in that: both sides, the described shifting block seat of honour (21) are provided with the shifting block slide (32) being slidably connected with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320566188.7U CN203498615U (en) | 2013-09-13 | 2013-09-13 | Stitch conversion mechanism for industrial zigzag sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320566188.7U CN203498615U (en) | 2013-09-13 | 2013-09-13 | Stitch conversion mechanism for industrial zigzag sewing machine |
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| Publication Number | Publication Date |
|---|---|
| CN203498615U true CN203498615U (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320566188.7U Expired - Fee Related CN203498615U (en) | 2013-09-13 | 2013-09-13 | Stitch conversion mechanism for industrial zigzag sewing machine |
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| Country | Link |
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| CN (1) | CN203498615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437074A (en) * | 2013-09-13 | 2013-12-11 | 吴江市菀坪宝得利缝制设备机械厂 | Trace conversion mechanism of industrial zigzag seam sewing machine |
-
2013
- 2013-09-13 CN CN201320566188.7U patent/CN203498615U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437074A (en) * | 2013-09-13 | 2013-12-11 | 吴江市菀坪宝得利缝制设备机械厂 | Trace conversion mechanism of industrial zigzag seam sewing machine |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20140913 |
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| EXPY | Termination of patent right or utility model |