CN204211942U - A kind of lifting device of sewing machine cloth-dragging wheel - Google Patents
A kind of lifting device of sewing machine cloth-dragging wheel Download PDFInfo
- Publication number
- CN204211942U CN204211942U CN201420633222.2U CN201420633222U CN204211942U CN 204211942 U CN204211942 U CN 204211942U CN 201420633222 U CN201420633222 U CN 201420633222U CN 204211942 U CN204211942 U CN 204211942U
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- CN
- China
- Prior art keywords
- cloth
- dragging wheel
- sewing machine
- activation lever
- dragging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of lifting device of sewing machine cloth-dragging wheel, the hoisting mechanism of cloth-dragging wheel is set on rear side of Sewing machines, lifting device is pulled to be pulled upwardly by cloth-dragging wheel by power set, after fabric is taken away, power set reset, cloth-dragging wheel resets under the effect of self spring, it is simple that the utility model has structure, feature easy to use.
Description
Technical field
The utility model relates to sewing machine technique, specifically a kind of lifting device of sewing machine cloth-dragging wheel.
Background technology
Sewing machine cloth-dragging wheel arranges the rear of sewing-machine foot, fabric is dragged for coordinating presser feet and pressing sole lower teeth, after every task completes needs will be pressed in cloth-dragging wheel on fabric mention then by fabric take out, existing Sewing machines does not have special lifting device, is not very convenient to use.
Existing Sewing machines inside is provided with built-in presser bar lifting mechanisms in addition, if Chinese patent notification number is that CN203159869U discloses a kind of built-in automatic needle-foot-lifting mechanism for Sewing machines, comprise with lower component: casing, described casing comprises a uprights, is provided with a cavity in described uprights; Linear actuator is fixedly mounted in described cavity, described linear actuator comprises one can the draw bar of straight reciprocating motion, after having one, the rear end of lever is connected with the end of draw bar, the front end of rear lever comprises two pin-and-holes, wherein pin-and-hole is rotatably connected on casing by bearing pin before first, before rear lever rear end to first, the distance of pin-and-hole is greater than the distance of pin-and-hole before pin-and-hole to first before second, front lever comprises three pin-and-holes, and the first pin-and-hole is rotatably connected on casing by bearing pin; Second pin-and-hole and presser feet lifter plate are hinged; Before having second of the rear end of a pull bar and rear lever, pin-and-hole is hinged, and the front end of pull bar and the 3rd pin-and-hole of front lever are hinged; Presser bar lifting mechanisms is arranged enclosure interior by this mechanism, the active force of linear actuator is amplified by lever, and play commutation effect, make structure compacter, structure is more reasonable, but this automatic presser bar lifting mechanisms is once break down, and Sewing machines just cannot normally work, make troubles to production, its reliability need to improve.
Utility model content
The purpose of this utility model is the lifting device providing a kind of sewing machine cloth-dragging wheel, the hoisting mechanism of cloth-dragging wheel is set on rear side of Sewing machines, lifting device is pulled to be pulled upwardly by cloth-dragging wheel by power set, after fabric is taken away, power set reset, cloth-dragging wheel resets under the effect of self spring, it is simple that the utility model has structure, feature easy to use.
For achieving the above object by the following technical solutions:
A kind of lifting device of sewing machine cloth-dragging wheel, comprise sewing machine head and presser feet, the described sewing machine head back side is provided with cloth-dragging wheel device, described cloth-dragging wheel device comprises casing, cloth-dragging wheel depression bar and unidirectional cloth-dragging wheel, cloth-dragging wheel depression bar is from top to bottom through casing, the lower end of cloth-dragging wheel depression bar is provided with cloth-dragging wheel support, cloth-dragging wheel support is provided with unidirectional cloth-dragging wheel, cloth-dragging wheel depression bar is socketed with spring, spring retention applies downward pressure to cloth-dragging wheel depression bar in casing, it is characterized in that: offer upgrading slot at the rear side of described casing, an end of a lift arm and cloth-dragging wheel depression bar is had to be connected, the other end of lift arm passes from casing through upgrading slot, at the sewing machine head back side, also pivot has the first activation lever and the second activation lever, first activation lever and the second activation lever wherein pass through connecting bar in one end, the output end of the first activation lever is flexibly connected with lift arm by connector, and the input of the second activation lever connects with power set.
The input of described actuating arm is provided with belt wheel, and described power set are drive motors, and drive motors output shaft is coupling a cam, is connected between cam with belt wheel by belt, and drive motors is rotated through cam and movable belt pulley can be with to move up and down.
On rear side of described sewing machine head, storehouse covers and has loose slot, and have a connecting pin to be interconnected by the pull bar in the connecting rod of outside and storehouse through this loose slot, pull bar is connected with presser feet lifter plate by presser feet activation lever, and presser feet lifter plate and presser feet are connected.
The utility model arranges the lifting device of cloth-dragging wheel at Sewing machines back, the automatic control being realized cloth-dragging wheel lifting by drive motors and declined; The utility model storehouse on rear side of sewing machine head covers and has loose slot in addition, by connecting pin by pull bar and connecting bar, such drive motors while lifting cloth-dragging wheel by pressure foot lifting, realize the synchronization lifting of presser feet and cloth-dragging wheel, simultaneously direct drive unit and the transmission mechanism of pressure foot lifting also can be saved in Sewing machines inside, the structure cost performance of product.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model sidepiece;
Fig. 3 is the structural representation of the utility model pressure foot lifting.
Detailed description of the invention
As Figure 1-3, a kind of lifting device of sewing machine cloth-dragging wheel, comprise sewing machine head 1 and presser feet 2, the described sewing machine head back side is provided with cloth-dragging wheel device, described cloth-dragging wheel device comprises casing 3, cloth-dragging wheel depression bar 4 and unidirectional cloth-dragging wheel 5, cloth-dragging wheel depression bar 4 is from top to bottom through casing 3, the lower end of cloth-dragging wheel depression bar 4 is provided with cloth-dragging wheel support 41, cloth-dragging wheel support 41 is provided with unidirectional cloth-dragging wheel 5, cloth-dragging wheel depression bar 41 is socketed with spring 42, spring 42 is placed in casing 3 and applies downward pressure to cloth-dragging wheel depression bar 4, upgrading slot 31 is offered at the rear side of described casing 3, an end of a lift arm 6 and cloth-dragging wheel depression bar 41 is had to be connected, the other end of lift arm 6 passes from casing 3 through upgrading slot 31, at sewing machine head 1 back side, also pivot has the first activation lever 7 and the second activation lever 8, first activation lever 7 and the second activation lever 8 are wherein interconnected by connecting rod 9 one end, the output end of the first activation lever 7 is flexibly connected with lift arm 6 by connector 10, and the input of the second activation lever 8 connects with power set, on rear side of described sewing machine head 1, storehouse covers and has loose slot 13, a connecting pin 14 is had to interconnect with the pull bar 15 in storehouse through the connecting rod 9 of this loose slot 13 by outside, pull bar 15 is connected with presser feet lifter plate 17 by presser feet activation lever 16, and presser feet lifter plate 17 and presser feet 2 are connected.
The second activation lever 8 is driven to rotate by power set during utility model works, the first activation lever 7 is pulled to rotate by connecting 9, and then first activation lever 7 drive lift arm 6 to promote by connector 10, be connected to the lifting of cloth-dragging wheel depression bar 41 and unidirectional cloth-dragging wheel 5 simultaneously; After power set reset, connector 10 and lift arm 6 lose lifting force upwards, automatically reset under the action of a spring 42; The utility model storehouse on rear side of sewing machine head 1 covers and has loose slot 13 in addition, by connecting pin 14, pull bar 15 and connecting rod 9 are interconnected, presser feet 2 promotes by such drive unit while lifting cloth-dragging wheel, realize the synchronization lifting of presser feet and cloth-dragging wheel, direct drive unit and the transmission mechanism of pressure foot lifting can also be saved in such Sewing machines inside, structure is simplified, and can save cost, the cost performance of improving product.
Power set of the present utility model can adopt common drive motors, the input of the second described activation lever 8 is provided with belt wheel 12, drive motors output shaft is coupling a cam, connected by belt between cam with belt wheel, drive motors half rotation can be with movable belt pulley to move downward by cam, the lifting of presser feet and cloth-dragging wheel is realized from face, half rotation cam return again, belt wheel upwards resets, presser feet and cloth-dragging wheel also automatically reset in the effect of spring, the utility model drive unit is not limited to motor and drives, other as also pneumatic wait direct drive mode be also applicable to the utility model.
Claims (3)
1. the lifting device of a sewing machine cloth-dragging wheel, comprise sewing machine head (1) and presser feet (2), the described sewing machine head back side is provided with cloth-dragging wheel device, described cloth-dragging wheel device comprises casing (3), cloth-dragging wheel depression bar (4) and unidirectional cloth-dragging wheel (5), cloth-dragging wheel depression bar (4) is from top to bottom through casing (3), the lower end of cloth-dragging wheel depression bar (4) is provided with cloth-dragging wheel support (41), cloth-dragging wheel support (41) is provided with unidirectional cloth-dragging wheel (5), cloth-dragging wheel depression bar (41) is socketed with spring (42), spring (42) is placed in casing (3) and applies downward pressure to cloth-dragging wheel depression bar (4), it is characterized in that: offer upgrading slot (31) at the rear side of described casing (3), an end of a lift arm (6) and cloth-dragging wheel depression bar (41) is had to be connected, the other end of lift arm (6) passes from casing (3) through upgrading slot (31), at sewing machine head (1) back side, also pivot has the first activation lever (7) and the second activation lever (8), first activation lever (7) and the second activation lever (8) wherein one end are interconnected by connecting rod (9), the other end of first activation lever (7) is flexibly connected with lift arm (6) by connector (10), the other end of the second activation lever (8) leads to the output flexible connection of actuating arm (11), and the input of actuating arm (11) connects with power set.
2. the lifting device of a kind of sewing machine cloth-dragging wheel as claimed in claim 1, it is characterized in that: described sewing machine head (1) rear side storehouse covers and has loose slot (13), a connecting pin (14) is had the connecting rod (9) of outside and the pull bar (15) in storehouse to be interconnected through this loose slot (13), pull bar (15) is connected with presser feet lifter plate (17) by presser feet activation lever (16), and presser feet lifter plate (17) and presser feet (2) are connected.
3. the lifting device of a kind of sewing machine cloth-dragging wheel as claimed in claim 1 or 2, it is characterized in that: the input of described actuating arm (11) is provided with belt wheel (12), described power set are drive motors, drive motors output shaft is coupling a cam, connected by belt between cam with belt wheel, drive motors is rotated through cam and movable belt pulley can be with to move up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420633222.2U CN204211942U (en) | 2014-10-30 | 2014-10-30 | A kind of lifting device of sewing machine cloth-dragging wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420633222.2U CN204211942U (en) | 2014-10-30 | 2014-10-30 | A kind of lifting device of sewing machine cloth-dragging wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204211942U true CN204211942U (en) | 2015-03-18 |
Family
ID=52980629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420633222.2U Expired - Fee Related CN204211942U (en) | 2014-10-30 | 2014-10-30 | A kind of lifting device of sewing machine cloth-dragging wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204211942U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963105A (en) * | 2015-07-23 | 2015-10-07 | 台州通宇服装机械科技有限公司 | Sewing machine based on automatic template split synchronizing wheel apparatus |
| CN106222893A (en) * | 2016-08-31 | 2016-12-14 | 苏州市志诚机械有限公司 | A kind of pinch roller assembly for sewing machine and sewing machine |
| CN106222892A (en) * | 2016-08-31 | 2016-12-14 | 苏州市志诚机械有限公司 | The pinch roller assembly of a kind of sewing machine and sewing machine |
| CN109208187A (en) * | 2018-10-19 | 2019-01-15 | 百福工业缝纫机（张家港）有限公司 | Novel automatic feed sewing machine |
| CN110004602A (en) * | 2019-04-16 | 2019-07-12 | 杰克缝纫机股份有限公司 | Presser foot lifter and lift rear dragging wheel construction on a kind of sewing machine |
-
2014
- 2014-10-30 CN CN201420633222.2U patent/CN204211942U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963105A (en) * | 2015-07-23 | 2015-10-07 | 台州通宇服装机械科技有限公司 | Sewing machine based on automatic template split synchronizing wheel apparatus |
| CN106222893A (en) * | 2016-08-31 | 2016-12-14 | 苏州市志诚机械有限公司 | A kind of pinch roller assembly for sewing machine and sewing machine |
| CN106222892A (en) * | 2016-08-31 | 2016-12-14 | 苏州市志诚机械有限公司 | The pinch roller assembly of a kind of sewing machine and sewing machine |
| CN106222892B (en) * | 2016-08-31 | 2022-04-15 | 苏州市志诚机械有限公司 | Pressing wheel assembly of sewing machine and sewing machine |
| CN106222893B (en) * | 2016-08-31 | 2022-04-15 | 苏州市志诚机械有限公司 | A pinch roller subassembly and sewing machine for sewing machine |
| CN109208187A (en) * | 2018-10-19 | 2019-01-15 | 百福工业缝纫机（张家港）有限公司 | Novel automatic feed sewing machine |
| CN110004602A (en) * | 2019-04-16 | 2019-07-12 | 杰克缝纫机股份有限公司 | Presser foot lifter and lift rear dragging wheel construction on a kind of sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150318 Termination date: 20191030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |