CN87214806U - Three-thread chain stitch machine - Google Patents
Three-thread chain stitch machine Download PDFInfo
- Publication number
- CN87214806U CN87214806U CN 87214806 CN87214806U CN87214806U CN 87214806 U CN87214806 U CN 87214806U CN 87214806 CN87214806 CN 87214806 CN 87214806 U CN87214806 U CN 87214806U CN 87214806 U CN87214806 U CN 87214806U
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- Prior art keywords
- needle
- large bending
- little
- lower shaft
- fixed
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- Sewing Machines And Sewing (AREA)
Abstract
TThe utility model relates to a new design of the three-thread overlock machine, whose overcastting stitch is identical to the GN overlock machine. The machine head mainly comprises a straight needle transmitting mechanism, a bigger curved needle transmitting mechanism, and a smaller curved needle transmitting mechanism. The upper-lower transmitting straight needle punching mechanism, the cloth-delivering mechanism and the needle pitch regulating mechanism are similar with those of a domestic sewing machine. The bigger and smaller curved needles are driven by the lower shaft through a ball joint. Seventy-five percent of the components are interchangeable with those of a domestic sewing machine. The utility model can be installed directly on the bedplate of the domestic sewing machine, and can work by using the partially spent casing of the sewing machines. The utility model has the advantages of low cost, easy fabrication. The price is about one third of a GN three-thread overlock machine.
Description
The utility model is a kind of suitable crack three-way cap seaming machine that society and sewing specialist use of threading.It is a kind of new design of relevant three-thread overlock.
Known three-way cap seaming machine is China GN type three-thread overlock one class type, and certain angle is pressed on its staight needle and needle plate plane, and the moving surface of two loopers is then vertical with the needle plate plane.Structure is different fully with domestic sewing machine, and part can not be general with domestic sewing machine; Price is higher, and can not be directly installed on the normal domestic use sewing machine frame platen and use.
The purpose of this utility model is in order to provide a kind of stitching and the GN type three yarn closed seam machine of threading identical, and price is lower, and most parts and domestic sewing machine are general, can be directly installed on the three-way cap seaming machine that uses on the normal domestic use sewing machine frame platen.Another purpose of the present utility model is for a kind of three-way cap seaming machine that the partially spent casing is produced in the domestic sewing machine production that utilizes is provided.
The three-way cap seaming machine of the utility model design is based on domestic sewing machine, and casing and domestic sewing machine are basic identical slightly variant, can change a social system with the domestic sewing machine casing; Mechanisms such as last axle, staight needle shank, work feed, needle gage adjusting and domestic sewing machine are identical; Following through-drive is also similar to domestic sewing machine.Difference is not have balance staff and feed lifting rock shaft, and the shuttle of having abolished the flush joint use simultaneously colludes line part and staight needle thread take-up tension lever part.The same with flat seam machine, staight needle is vertical with the needle plate plane.By two pairs of spherical linkage transmissions, its moving surface is different angles of inclination with the needle plate plane by lower shaft for the little looper that increases newly, large bending needle.Little looper angle of inclination is less, and the large bending needle angle of inclination is bigger, thereby satisfies the status requirement of three pin space intersections in the serging sewing.
Accompanying drawing is a kind of embodiment that the utility model is done according to JA type domestic sewing machine.
Accompanying drawing 1 is the front view of three-way cap seaming machine.
Accompanying drawing 2 is side views of three-way cap seaming machine.
(1) is big connecting rod among the figure, (2) be the caudal flexure handle, (3) be lower shaft, (4) be rear crank, (5) be spherical linkage, two ball pivots of bag letter are paid, (6) be little looper frame, (7) be little curved needle shaft, (8) be spherical linkage, two ball pivots of bag letter are paid, and (9) are the large bending needle axles, (10) be the large bending needle seat, (11) be the ball pivot seat, (12) be preceding footstalk, (13) be tooth lifting cam, (14) be little looper thread tension disk, (15) be little looper, (16) be staight needle, (17) be staight needle line wire-threading device, (18) be staight needle line tension disk, (19) be large bending needle, (20) be retainer, (21) be the large bending needle frame, (22) be large bending needle line tension disk, (23) be the needle gage adjustment screw, (24) be feed dog.
The staight needle (16) that is fixed on the shank is driven by last axle, needle bar crank, small rod, and its structure and JA, JB type domestic sewing machine are identical.Staight needle (16) is vertical with the needle plate plane.
The big connecting rod (1) that is contained on the axle crank throw is directly hinged with the caudal flexure handle (2) that is fixed on the lower shaft (3), the gyration of last axle is transformed to the oscillating motion of lower shaft (3).Be fixed on tooth lifting cam (13) on the preceding crank (12) by working cycles ascending, descending retainer (20) and be fixed in the feed dog (24) of retainer, realize the work feed action jointly with cloth pushing shaft.
Little looper (15) is fixed on the little looper frame (6) with holding screw.Little looper frame (6) can be swung little curved needle shaft (7) around little curved needle shaft (7) axial line and be fixed in holding screw on the square leg that the preceding hole of lower shaft is arranged on the base plate, and being 5 ° to 20 ° angles with the big plane of base plate, little looper frame (6) links by spherical linkage (5) and the rear crank (4) that is fixed in lower shaft (3) middle part.Change the fixed position of rear crank (4) on lower shaft (3), can regulate the amplitude of oscillation and the initial position of little looper (15), satisfy serging sewing little looper requirement.
Large bending needle (19) is fixed on the large bending needle frame (21) with holding screw.Large bending needle seat (10) is fixed on the top screwhole position of base plate original dental axle left end with bolt, and a large bending needle axle (9) that can freely rotate is housed in the large bending needle seat (10).The axial line of large bending needle axle (9) is mounted to the big plane of base plate and is 25 ° to 40 ° angles.Large bending needle frame (21) and ball pivot seat (11) all are anchored on the large bending needle axle (9).The preceding crank (12) that is fixed on the lower shaft front end connects with ball pivot seat (11) by spherical linkage (8), and the oscillating motion of lower shaft (3) just reaches large bending needle (21), forms the oscillating motion of large bending needle (19).Crank (12) is with respect to the installation angle of caudal flexure handle (2) or large bending needle axle (9) the installation angle with respect to the big plane of base plate, the amplitude of oscillation that can regulate large bending needle (19) before changing; And change the fixed position of large bending needle frame (21) on large bending needle axle (9), and can regulate the initial position of large bending needle (19), satisfy serging sewing to the large bending needle requirement.
Needle gage adjustment screw (23) is used for the metering needle distance, and its structure and normal domestic use Sewing machines are identical.
According to the three-way cap seaming machine that present embodiment is made, the part of head 75% and JA type domestic sewing machine are general.The highest sewing velocity 800 pins/minute; 3 millimeters of maximum sewing thickness.Price only is about 1/3rd of a GN type three-thread overlock.
Previous embodiment also is applicable to JB type domestic sewing machine fully.
Claims (6)
1, a kind of head comprises the three-way cap seaming machine of Ci Bu mechanism, little looper transmission mechanism, large bending needle transmission mechanism, cloth feeding mechanism, needle gage governor motion, tension disk, it is characterized in that:
The direction of motion of staight needle (16) is vertical with the needle plate plane.
Little looper transmission mechanism is made up of little looper frame (6), little curved needle shaft (7), spherical linkage (5), rear crank (4), the lower shaft (3) of fixing little looper (15), power is by lower shaft (3) input, and the moving surface of little looper (15) and needle plate plane are and are in tilted layout;
The large bending needle transmission mechanism is by fixedly large bending needle frame (21), large bending needle axle (9), ball pivot seat (11), large bending needle seat (10), spherical linkage (8), preceding crank (12), the lower shaft (3) of large bending needle (19) are formed, power is by lower shaft (3) input, and the moving surface of large bending needle (19) and needle plate plane are and are in tilted layout.
2, three-way cap seaming machine according to claim 1 is characterized in that little curved needle shaft (7) is fixed on the square leg that knothole before the lower shaft hole is arranged on the base plate with holding screw, and the angle on little curved needle shaft (7) axial line and the big plane of base plate is 5 ° to 20 °.
3, three-way cap seaming machine according to claim 1 is characterized in that large bending needle seat (10) is fixed on the top screwhole position of the former feed lifting rock shaft left end of base plate with bolt, and the angle on large bending needle axle (9) axial line and the big plane of base plate is 25 ° to 40 °.
4, three-way cap seaming machine according to claim 1, the big connecting rod (1) that it is characterized in that being contained on the axle crank throw is directly hinged with the caudal flexure handle (2) that is fixed on the lower shaft (3).
5, three-way cap seaming machine according to claim 1 is characterized in that lifting tooth mechanism and is made up of the tooth lifting cam (13), retainer (20), the feed dog (24) that are fixed on the preceding crank (12).
6, three-way cap seaming machine according to claim 1 is characterized in that staight needle line tension disk (18) is fixed on the panel, is connected with a staight needle line wire-threading device (17) on the shank; Large bending needle line tension disk (22) is fixed on the base plate plane; Little looper thread tension disk (14) is arranged under the base plate plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87214806 CN87214806U (en) | 1987-10-24 | 1987-10-24 | Three-thread chain stitch machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87214806 CN87214806U (en) | 1987-10-24 | 1987-10-24 | Three-thread chain stitch machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87214806U true CN87214806U (en) | 1988-09-28 |
Family
ID=4829048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87214806 Withdrawn CN87214806U (en) | 1987-10-24 | 1987-10-24 | Three-thread chain stitch machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87214806U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808291A (en) * | 2011-05-31 | 2012-12-05 | Juki株式会社 | Overlock machine |
| US9976238B2 (en) | 2015-04-01 | 2018-05-22 | Janome Sewing Machine Co., Ltd. | Sewing machine |
-
1987
- 1987-10-24 CN CN 87214806 patent/CN87214806U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808291A (en) * | 2011-05-31 | 2012-12-05 | Juki株式会社 | Overlock machine |
| CN102808291B (en) * | 2011-05-31 | 2016-01-20 | Juki株式会社 | Overlock machine |
| US9976238B2 (en) | 2015-04-01 | 2018-05-22 | Janome Sewing Machine Co., Ltd. | Sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |