CN104264384A - Overlock sewing machine and stitch length adjustment structure for same - Google Patents
Overlock sewing machine and stitch length adjustment structure for same Download PDFInfo
- Publication number
- CN104264384A CN104264384A CN201410571401.2A CN201410571401A CN104264384A CN 104264384 A CN104264384 A CN 104264384A CN 201410571401 A CN201410571401 A CN 201410571401A CN 104264384 A CN104264384 A CN 104264384A
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- China
- Prior art keywords
- needle gage
- connecting rod
- overlock machine
- adjustment
- adjustment structure
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B55/00—Needle holders; Needle bars
- D05B55/10—Needle bars for multiple-needle sewing machines
- D05B55/12—Needle bars for multiple-needle sewing machines with provision for varying the distance between the needles
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides an overlock sewing machine and a stitch length adjustment structure for the same. The stitch length adjustment structure comprises a linkage adjustment mechanism, a driving mechanism and a reset mechanism; the linkage adjustment mechanism comprises a first connecting rod, a second connecting rod and a stitch length adjustment crank which are hinged to each other in turn; the end portion of the first connecting rod is connected with a main shaft of the overlock sewing machine in a rotating mode; the end portion of the first connecting rod comprises a concaved curved surface; the stitch length adjustment crank and the second connecting rod are in transmission connection with a short feeding swing rod through a pin shaft, wherein the short feeding swing rod is arranged on the overlock sewing machine; the stitch length adjustment crank is fixed on a stitch length adjustment shaft which is parallel to the main shaft; the driving mechanism comprises an adjustment part which can move frontward or backward; one end of the adjustment part is in contact with the concaved curved surface; the first connecting rod is driven by the adjustment part to rotate when the adjustment part moves frontward so as to drive the stitch length adjustment crank and the short feeding swing rod finally to rotate to achieve the stitch length adjustment; the reset mechanism is connected with the linkage adjustment mechanism; the reset mechanism is used for driving the linkage adjustment to reset when the adjustment part moves backward. According to the overlock sewing machine and the stitch length adjustment structure for the same, the stitch length adjustment can be rapidly and conveniently implemented.
Description
Technical field
The present invention relates to a kind of overlock machine, particularly relate to a kind of overlock machine needle gage adjustment structure used and this overlock machine.
Background technology
Overlock machine is the one of Sewing machines, and its stitching can be divided into single line, two-wire, three lines, four lines, five lines and six lines etc., is mainly used in bound edge, and to prevent the margin to seam of clothes from fluffing, overlock machine can also be applied to sews up T-shirt, sportswear, underwear, the fabric such as knitting.The needle gage regulative mode of existing overlock machine needs manually to operate with two hands, when carrying out needle gage adjustment, left hand need press out needle shaft, then right hand rotation main shaft, when main shaft is gone to certain position, drive needle gage eccentric wheel in needle shaft clamping work feed assembly, then change work feed eccentric wheel and the eccentric angle of needle gage by rotating spindle, and then change the needle gage of Sewing machines.This adjustment process is loaded down with trivial details, regulates very inconvenient.Therefore, need the structure of the singlehanded metering needle distance of a kind of energy, realize regulating needle gage quickly and easily.
Chinese patent 02233924.8 discloses a kind of Multifunctional lockstitch sewing machine, and it is by carrying out Curve guide impeller to traditional overlock machine; Add differential cloth feeding mechanism and needle gage governor motion.In this patent work feed connect wrist limit on be provided with one needle gage regulate chute, it is connected with a power transmission shaft, one end of power transmission shaft by the adjustment wrist, connecting rod and the adjustment cam that are connected with regulating the adjustment knob fulcrum of turn-knob to be connected, and form needle gage governor motion.This patent regulates chute to be connected the angle of wrist with work feed by changing needle gage, controls the amplitude of the horizontal work feed movement locus of main cloth conveying teeth, thus controls needle gage size; But needle gage chute is connected wrist angle control accuracy with work feed is forbidden, and should lose efficacy.
Summary of the invention
The shortcoming of prior art in view of the above, the needle gage adjustment structure that the object of the present invention is to provide a kind of overlock machine used and overlock machine, regulate waste time and energy for solving prior art mid-cut, can not the problem of fine adjustment.
For achieving the above object and other relevant objects, the invention provides the needle gage adjustment structure that a kind of overlock machine is used, it comprises: linkage adjustment mechanism, comprise the first connecting rod be hinged successively, second connecting rod and needle gage regulate crank, the end of described first connecting rod is connected with the main axis of described overlock machine, and the end of described first connecting rod has an inner sunken face, described needle gage regulates crank to be all connected with the short feeding swing arm transmission on described overlock machine by bearing pin with described second connecting rod, described needle gage regulates crank to be fixed on the needle gage regulating shaft with main axis parallel, driving mechanism, comprise the regulating part that can move forward and backward, one end of described regulating part contacts with described inner sunken face, drives described first connecting rod to rotate when described regulating part moves forward, and the final needle gage that drives regulates crank and short feeding swing arm to rotate to complete needle gage adjustment, resetting-mechanism, is connected with described linkage adjustment mechanism, and when described regulating part moves backward, resetting-mechanism is used for driving described linkage adjustment mechanism to reset.
Preferably, described regulating part is with externally threaded shank of bolt, and described shank of bolt is located in the female abutment sleeve of a band.
Preferably, the other end of described regulating part is provided with knob.
Preferably, described resetting-mechanism comprises reset spring plank, torsion spring and described needle gage regulating shaft, described reset spring plank and described torsion spring are all located on described needle gage regulating shaft, and one of described torsion spring twists leg and to fix with described needle gage regulating shaft, and another of torsion spring twists leg and to be connected with described reset spring plank.
Preferably, described resetting-mechanism is an extension spring, and one end and the needle gage of extension spring regulate crank to be connected, and the other end of extension spring is fixed.
The present invention also provides a kind of overlock machine with needle gage adjustment structure, the main shaft of described overlock machine is provided with an eccentric part, described eccentric part is arranged with work feed connecting rod, described work feed connecting rod is connected with short feeding swing arm with long feeding swing arm respectively, and described overlock machine is provided with overlock machine as above needle gage adjustment structure used.
As mentioned above, the needle gage adjustment structure that overlock machine of the present invention is used and overlock machine, there is following beneficial effect: overlock machine of the present invention adopts needle gage adjustment structure to realize singlehanded metering needle distance, only need by regulating regulating part, rotated by its movable linkage adjustment mechanism that drives, and then drive short feeding swing arm and needle gage to regulate crank certain angle, complete needle gage and regulate, it achieves needle gage quickly and easily and regulates.
Accompanying drawing explanation
Fig. 1 is shown as the overlock machine schematic diagram of band needle gage adjustment structure of the present invention.
Element numbers explanation
1 main shaft
2 work feed connecting rods
3 first connecting rods
4 regulating parts
41 knobs
5 second connecting rods
6 needle gages regulate crank
7 bearing pins
8 pivot pins
9 torsion springs
10 reset spring planks
11 needle gage regulating shafts
12 short feeding swing arms
13 long feeding swing arms
14 work feed curved bars
15 cloth pushing shafts
16 abutment sleeves
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this description can understand other advantages of the present invention and effect easily.
Refer to Fig. 1.Notice, structure, ratio, size etc. that this description institute accompanying drawings illustrates, content all only in order to coordinate description to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, 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 present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this description as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
As shown in Figure 1, the invention provides a kind of overlock machine with needle gage adjustment structure, in the present embodiment, the transmission mechanism of overlock machine and the irrelevant structure of other and needle gage adjustment structure are not described further, it is the structure in existing overlock machine, in the present embodiment, the main shaft 1 of overlock machine is provided with an eccentric part, eccentric part is arranged with work feed connecting rod 2, work feed connecting rod 2 is connected with short feeding swing arm 12 with long feeding swing arm 13 respectively, the work feed curved bar 14 that long feeding swing arm 13 and is arranged on cloth pushing shaft 15 is connected, cloth pushing shaft, main shaft is the structure in transmission mechanism, overlock machine is also provided with needle gage adjustment structure, this needle gage adjustment structure comprises: linkage adjustment mechanism, comprise the first connecting rod 3 be hinged successively, second connecting rod 5 and needle gage regulate crank 6, the end of first connecting rod 3 and the main shaft 1 of overlock machine are rotatedly connected, and the end of first connecting rod 3 has an inner sunken face, needle gage regulates crank 6 to be all connected with short feeding swing arm 12 transmission on overlock machine by bearing pin 7 with second connecting rod 5, needle gage regulates crank 6 to be fixed on the needle gage regulating shaft 11 parallel with main shaft 1, driving mechanism, comprise the regulating part 4 that can move forward and backward, one end of regulating part 4 contacts with inner sunken face, drives first connecting rod 3 to rotate when regulating part 4 moves forward, and the final needle gage that drives regulates crank 6 and short feeding swing arm 12 to rotate needle gage adjustment, resetting-mechanism, is connected with linkage adjustment mechanism, and when regulating part 4 moves backward, resetting-mechanism is used for driving linkage adjustment mechanism to reset.Overlock machine of the present invention adopts needle gage adjustment structure to realize singlehanded metering needle distance, only need by regulating regulating part 4, rotated by its movable linkage adjustment mechanism that drives, and then drive short feeding swing arm 12 and needle gage to regulate crank 6 to turn an angle, the drive connection affecting long feeding swing arm and whole transmission mechanism is changed by the position of short feeding swing arm, the angle of the reciprocal transmission of cloth pushing shaft is changed, regulate to complete needle gage, it achieves needle gage quickly and easily and regulates.
For ease of realizing the movable of regulating part 4, above-mentioned regulating part 4 is with externally threaded shank of bolt, and shank of bolt is located in the female abutment sleeve 16 of a band, and this abutment sleeve is fixed on the casing of overlock machine.For ease of regulating, the other end of regulating part 4 is also provided with knob 41, and this knob is provided with needle gage and regulates scale, can regulate intuitively.This driving mechanism adopts shank of bolt to rotate and realizes moving forward and backward, and it also can be other versions, as long as can realize movable.Rotate knob 41, shank of bolt is moved forward or retracts backward, when moving forward, the end of shank of bolt props up above-mentioned first connecting rod 3, and order about drive first connecting rod 3 rotate, and then drive needle gage to regulate crank 6 and short feeding swing arm 12 to turn an angle, complete needle gage and regulate.
As an embodiment, above-mentioned resetting-mechanism can comprise reset spring plank 10, torsion spring 9 and the rotational positioning needle gage regulating shaft 11 on overlock machine casing, this needle gage regulating shaft 11 is located in the sleeve 17 that is fixed on overlock machine casing, reset spring plank 10 and torsion spring 9 are all located on needle gage regulating shaft 11, one of torsion spring 9 twists leg and to fix with the pivot pin 8 on needle gage regulating shaft 11, and another of torsion spring 9 twists leg and to be connected with the spring plank 10 that resets.The reset that the present embodiment adopts reset spring plank, torsion spring realizes whole interlock adjustment structure.When above-mentioned regulating part 4 moves backward, at this moment reset spring plank 10 regulates 6 one, crank to rotate the power resetted to needle gage under the drive of torsion spring 9, finally make whole interlock adjustment structure reset, above reset spring plank, be also provided with locating part, in case reset spring plank rotates excessively.
As another embodiment of resetting-mechanism, resetting-mechanism also can be an extension spring, and one end of extension spring is connected with above-mentioned bearing pin 7, and also crank 6 can be regulated to be connected with above-mentioned needle gage, the other end of extension spring is fixed.When above-mentioned regulating part 4 moves backward, under the pulling force of extension spring, make above-mentioned bearing pin rotate, and then drive whole interlock adjustment structure to rotate, complete reset.This resetting-mechanism also can be other resetting structure forms, only needs realize driving interlock adjustment structure to reset.
The present invention is when needs carry out needle gage adjustment, and needle gage adjustment structure controllable adjustable crank 6 rotates and can control its rotational angle.And when normally working, sewing length adjustment device control and regulation crank 6 maintains static, and then needle gage regulating shaft 11 is made to maintain static.The setting of crank 6 is regulated by the needle gage of different angles, for short feeding swing arm 12 provides the fulcrum of diverse location, thus (structure of the whole transmission mechanism of overlock machine is prior art to change the drive connection of overlock machine whole transmission mechanism, be not described further at this), the angle of the reciprocating rotation of cloth pushing shaft is changed, regulates to complete needle gage.
In sum, the overlock machine of band needle gage adjustment structure of the present invention, it adopts needle gage adjustment structure to realize singlehanded metering needle distance, only need by regulating regulating part, rotated by its movable linkage adjustment mechanism that drives, and then drive short feeding swing arm and needle gage to regulate crank certain angle, namely complete needle gage and regulate, it achieves needle gage quickly and easily and regulates.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (6)
1. the needle gage adjustment structure that overlock machine is used, is characterized in that, comprising:
Linkage adjustment mechanism, comprise the first connecting rod (3) be hinged successively, second connecting rod (5) and needle gage regulate crank (6), the end of described first connecting rod (3) and the main shaft (1) of described overlock machine are rotatedly connected, and the end of described first connecting rod (3) has an inner sunken face, described needle gage regulates crank (6) to be all connected with short feeding swing arm (12) transmission on described overlock machine by bearing pin (7) with described second connecting rod (5), described needle gage regulates crank (6) to be fixed on the needle gage regulating shaft (11) parallel with main shaft (1),
Driving mechanism, comprise the regulating part (4) that can move forward and backward, one end of described regulating part (4) contacts with described inner sunken face, described regulating part (4) drives described first connecting rod (3) to rotate when moving forward, the final needle gage that drives regulates crank (6) and short feeding swing arm (12) to rotate to complete needle gage adjustment;
Resetting-mechanism, is connected with described linkage adjustment mechanism, and when described regulating part (4) moves backward, resetting-mechanism is used for driving described linkage adjustment mechanism to reset.
2. the needle gage adjustment structure that overlock machine according to claim 1 is used, is characterized in that: described regulating part (4) is that described shank of bolt is located in the female abutment sleeve of a band (16) with externally threaded shank of bolt.
3. the needle gage adjustment structure that the overlock machine stated according to claim 2 is used, is characterized in that: the other end of described regulating part (4) is provided with knob (41).
4. the needle gage adjustment structure that overlock machine according to claim 1 is used, it is characterized in that: described resetting-mechanism comprises reset spring plank (10), torsion spring (9) and described needle gage regulating shaft (11), described reset spring plank (10) and described torsion spring (9) are all located on described needle gage regulating shaft (11), one of described torsion spring (9) twists leg and to fix with described needle gage regulating shaft, and another of torsion spring (9) twists leg and to be connected with described reset spring plank (10).
5. the needle gage adjustment structure that overlock machine according to claim 1 is used, is characterized in that: described resetting-mechanism is an extension spring, and one end and the described needle gage of extension spring regulate crank (6) to be connected, and the other end of extension spring is fixed.
6. the overlock machine with needle gage adjustment structure, the main shaft (1) of described overlock machine is provided with an eccentric part, described eccentric part is arranged with work feed connecting rod (2), described work feed connecting rod (2) is connected with long feeding swing arm (13), short feeding swing arm (12) respectively, it is characterized in that: described overlock machine is also provided with the needle gage adjustment structure that overlock machine as claimed in claim 1 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410571401.2A CN104264384B (en) | 2014-10-23 | 2014-10-23 | Needle gage adjustment structure used by overedger and overedger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410571401.2A CN104264384B (en) | 2014-10-23 | 2014-10-23 | Needle gage adjustment structure used by overedger and overedger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104264384A true CN104264384A (en) | 2015-01-07 |
| CN104264384B CN104264384B (en) | 2016-08-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410571401.2A Active CN104264384B (en) | 2014-10-23 | 2014-10-23 | Needle gage adjustment structure used by overedger and overedger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104264384B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106012337A (en) * | 2016-08-03 | 2016-10-12 | 杰克缝纫机股份有限公司 | Stitch length and differential regulating mechanism and sewing machine |
| CN109371578A (en) * | 2018-12-29 | 2019-02-22 | 杰克缝纫机股份有限公司 | Adjust the mechanism and its working method of sewing needle distance |
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| CN1297078A (en) * | 1999-11-22 | 2001-05-30 | 重机公司 | Feed adjusting device for sewing machine |
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| CN203890635U (en) * | 2014-05-26 | 2014-10-22 | 湖南省兴德缝制自动化有限公司 | Part used for stitch length regulation of cloth feeding device of sewing machine |
| CN204097718U (en) * | 2014-10-23 | 2015-01-14 | 杰克缝纫机股份有限公司 | The needle gage adjustment structure that overlock machine is used and overlock machine |
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2014
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Patent Citations (8)
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| JPH06292778A (en) * | 1993-04-08 | 1994-10-21 | Brother Ind Ltd | Sewing machine |
| CN1297078A (en) * | 1999-11-22 | 2001-05-30 | 重机公司 | Feed adjusting device for sewing machine |
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| CN204097718U (en) * | 2014-10-23 | 2015-01-14 | 杰克缝纫机股份有限公司 | The needle gage adjustment structure that overlock machine is used and overlock machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106012337A (en) * | 2016-08-03 | 2016-10-12 | 杰克缝纫机股份有限公司 | Stitch length and differential regulating mechanism and sewing machine |
| CN109371578A (en) * | 2018-12-29 | 2019-02-22 | 杰克缝纫机股份有限公司 | Adjust the mechanism and its working method of sewing needle distance |
| CN109371578B (en) * | 2018-12-29 | 2023-10-31 | 杰克科技股份有限公司 | Mechanism for adjusting needle distance of sewing machine and working method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104264384B (en) | 2016-08-24 |
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Address after: 318010 No. 1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |
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