CN201241257Y - Thread take-off transmission mechanism of sewing machine - Google Patents
Thread take-off transmission mechanism of sewing machine Download PDFInfo
- Publication number
- CN201241257Y CN201241257Y CNU2008201330244U CN200820133024U CN201241257Y CN 201241257 Y CN201241257 Y CN 201241257Y CN U2008201330244 U CNU2008201330244 U CN U2008201330244U CN 200820133024 U CN200820133024 U CN 200820133024U CN 201241257 Y CN201241257 Y CN 201241257Y
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- CN
- China
- Prior art keywords
- cam
- crochet hook
- drive rod
- hook seat
- slide
- 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 - Lifetime
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Abstract
The utility model discloses a Crochet wire transmission mechanism of a sewing machine, one end of a transmission shaft is provided with a concentric siamese double drive cam, and the concentric siamese double drive cam is composed of a first cam and a second cam; the cam faces of the first cam and the second cam form axial symmetry; one end of a crochet hook seat drive sliding seat and a swing piece sliding seat is respectively sleeved on a crochet hook seat drive rod and a swing piece drive rod concentrically, and is respectively fixed by retainer rings in the axial direction; the other end is respectively sleeved on fixing pins; connecting arms of the middle of the crochet hook seat drive sliding seat and the swing piece sliding seat are respectively provided with rectangular grooves; the first cam and the second cam are respectively inserted in the grooves and are abutted with the inner surface of the upper wall; and when the transmission shaft is rotated, the double drive cam respectively drive the crochet hook seat drive sliding seat and the swing piece sliding seat to move up and down along the crochet hook seat drive rod and the swing piece drive rod. The Crochet wire transmission mechanism adopts the double drive cam arranged on the same transmission shaft to drive the crochet hook seat drive rod and the swing piece drive rod to achieve a swing piece mechanism and a crochet needle mechanism required to be driven by crochet wires, and has simple structure, convenient maintenance and low cost.
Description
Technical field
The utility model relates to a kind of Sewing machines, particularly relates to a kind of hook line transmission mechanism of Sewing machines.
Background technology
At present, what the hook line transmission mechanism of Sewing machines adopted on the market is twopiece drive shaft, cooperates double cam to drive corresponding mechanism and reaches the hook lineman and make process, primary structure complexity, cost height, inconvenient maintenance, noise height.
The utility model content
Technical problem to be solved in the utility model is the hook line transmission mechanism complex structure that solves Sewing machines, cost height, inconvenient maintenance, the problem that noise is high.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted provides a kind of hook line transmission mechanism of Sewing machines, comprise power transmission shaft, tubulose crochet hook seat drive rod, swing sheet drive rod, the crochet hook seat drives slide and swing sheet slide, described tubulose crochet hook seat drive rod be arranged in the plane vertical with power transmission shaft and power transmission shaft and tubulose crochet hook seat drive rod non-intersect; Described swing sheet drive rod is installed in the crochet hook seat drive rod and moves up and down along the inner chamber of crochet hook seat drive rod; Described crochet hook seat drives slide, form with the linking arm that is connected two connecting bushings by the connecting bushing that is arranged on two ends, a connecting bushing of crochet hook seat driving slide is sleeved on the lower end and the two ends of crochet hook seat drive rod and uses crochet hook seat drive rod back-up ring axial restraint respectively, is fitted with crochet hook seat slide steady pin in another connecting bushing of crochet hook seat driving slide; Described swing sheet slide, form with the linking arm that is connected two connecting bushings by the connecting bushing that is arranged on two ends, the lower end of the swing sheet drive rod that a connecting bushing of swing sheet slide is sleeved on and two ends are fixed with swing sheet drive rod back-up ring respectively, are fitted with swing sheet slide steady pin in another connecting bushing of swing sheet slide; One end concentric locking collar of described power transmission shaft is equipped with two driving cams of being made up of first cam and second cam, and the cam surface of first cam and second cam is axial symmetry; Be respectively equipped with rectangular recess on the linking arm of described crochet hook seat driving slide and swing sheet slide, first cam and second cam be separately positioned in above-mentioned two grooves respectively and cam surface respectively with the upper wall butt of these two grooves, the linking arm that the crochet hook seat drives slide and swing sheet slide moves up and down respectively with the rotation of two driving cams.
In the such scheme, also be provided with the isolation back-up ring on two driving cams, be fixed between first cam and second cam.
The utility model adopts the two driving cams be provided with on same power transmission shaft to drive to swing sheet drive rod and crochet hook seat drive rod to reach the swing sheet mechanism and the latch needle mechanism of the required driving of hook line, and structure is plainly-packed, and is easy to maintenance, and cost is low.
Description of drawings
Fig. 1 is a decomposition texture schematic diagram of the present utility model;
Fig. 2 is a vertical view of the present utility model;
Fig. 3 is that the utility model crochet hook seat drives the slide perspective view;
Fig. 4 is the utility model swing sheet slide perspective view.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is made detailed explanation.
As shown in Figure 1 and Figure 2, the utility model comprises power transmission shaft 5, and tubulose crochet hook seat drive rod 7, swing sheet drive rod 8, crochet hook seat drive slide 4 and swing sheet slide 3, and tubulose crochet hook seat drive rod 7 is arranged in the plane vertical with power transmission shaft 5 and the two is non-intersect; Swing sheet drive rod 8 is installed in the crochet hook seat drive rod 7 and moves up and down along the inner chamber of crochet hook seat drive rod 7; One end concentric locking collar of power transmission shaft 5 is equipped with two driving cams 6 of being made up of the first cam 6a and the second cam 6b, and the cam surface of the first cam 6a and the second cam 6b is axial symmetry, is provided with the isolation back-up ring between the first cam 6a and the second cam 6b.
As shown in Figure 3, the crochet hook seat drives slide 4 and is made up of with the linking arm 42 that is connected two connecting bushings the connecting bushing 40,41 that is arranged on two ends, a connecting bushing 41 of crochet hook seat driving slide 4 is sleeved on the lower end of crochet hook seat drive rod 7 and crochet hook seat drive rod back-up ring 9 axial restraints are used at the two ends of this connecting bushing 41 respectively, be fitted with crochet hook seat slide steady pin 1 in another connecting bushing 40 of crochet hook seat driving slide 4, and be connected with casing by this steady pin 1.
As shown in Figure 4, swing sheet slide 3 is made up of with the linking arm 32 that is connected two connecting bushings the connecting bushing 30,31 that is arranged on two ends, the lower end of the swing sheet drive rod 8 that a connecting bushing 31 of swing sheet slide 3 is sleeved on and the two ends of this connecting bushing 31 are respectively with swing sheet drive rod back-up ring 10 axial restraints, be fitted with swing sheet slide steady pin 2 in another connecting bushing 30 of swing sheet slide 3, and be connected with casing by this steady pin 1.
The linking arm 42 that the crochet hook seat drives slide 4 is provided with rectangular recess 43, the bottom of groove 43 has the through hole that can install power transmission shaft 5, and the first cam 6a is arranged in this rectangular recess 43 and the cam surface of this first cam 6a and upper wall inner surface 44 butts of rectangular recess 43; Also be provided with rectangular recess 33 on the linking arm 32 of swing sheet slide 3, the upper wall inner surface 34 of this rectangular recess 33 is parallel with the upper wall inner surface 44 that the crochet hook seat drives the rectangular recess 43 on the slide linking arm 42, the second cam 6b is arranged on rectangular recess 33 interior and the upper wall inner surface 34 of this rectangular recess 33 and the cam surface butts of the second cam 6b on swing sheet slide 3 linking arms, rotation with power transmission shaft 5, the first cam 6a and the second cam 6b jack-up crochet hook seat respectively drive slide 4 and the linking arm of swinging sheet slide 3, make crochet hook seat driving slide 4 and 3 timesharing of swing sheet slide move up and down.
Specifically, when power transmission shaft 5 rotations, the second cam 6b in two driving cams 6 of an end of power transmission shaft 5 will drive the swing sheet by cam curved surface and drive slide 3 motions, move up and down so drive swing sheet drive rod 8; Power transmission shaft 5 continues rotation simultaneously, drives slide 4 motions so the first cam 6a will drive the crochet hook seat by cam curved surface, moves up and down so drive crochet hook seat drive rod 7, and one has enough to meet the need the hook line transmission circulation of having finished needs.
The utility model is not limited to above-mentioned preferred forms, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, all fall within the protection domain of the present utility model.
Claims (2)
1, a kind of hook line transmission mechanism of Sewing machines comprises:
Power transmission shaft (5);
Tubulose crochet hook seat drive rod (7), be arranged in the plane vertical with power transmission shaft (5) and power transmission shaft (5) and tubulose crochet hook seat drive rod (7) non-intersect;
Swing sheet drive rod (8) is installed in the crochet hook seat drive rod (7) and moves up and down along the inner chamber of crochet hook seat drive rod (7);
The crochet hook seat drives slide (4), form with the linking arm that is connected two connecting bushings by the connecting bushing that is arranged on two ends, a connecting bushing of crochet hook seat driving slide (4) is sleeved on the lower end and the two ends of crochet hook seat drive rod (7) and uses crochet hook seat drive rod back-up ring (9) axial restraint respectively, is fitted with crochet hook seat slide steady pin (1) in another connecting bushing of crochet hook seat driving slide (4);
Swing sheet slide (3), form with the linking arm that is connected two connecting bushings by the connecting bushing that is arranged on two ends, the lower end of the swing sheet drive rod (8) that a connecting bushing of swing sheet slide (3) is sleeved on and two ends are fixing with swing sheet drive rod back-up ring (10) respectively, are fitted with swing sheet slide steady pin (2) in another connecting bushing of swing sheet slide (3);
It is characterized in that:
One end concentric locking collar of described power transmission shaft (5) is equipped with two driving cams (6) of being made up of first cam (6a) and second cam (6b), and the cam surface of first cam (6a) and second cam (6b) is axial symmetry; Described crochet hook seat drives on the linking arm of slide (4) and swing sheet slide (3) and is respectively equipped with rectangular recess, first cam (6a) and second cam (6b) be separately positioned on the interior and cam surface of above-mentioned two grooves respectively with the upper wall butt of these two grooves.
2, the hook line transmission mechanism of Sewing machines as claimed in claim 1 is characterized in that also being provided with on the described pair of driving cam (6) and isolates back-up ring (11), and described isolation back-up ring (11) is fixed between first cam (6a) and second cam (6b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201330244U CN201241257Y (en) | 2008-07-29 | 2008-07-29 | Thread take-off transmission mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201330244U CN201241257Y (en) | 2008-07-29 | 2008-07-29 | Thread take-off transmission mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201241257Y true CN201241257Y (en) | 2009-05-20 |
Family
ID=40714552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201330244U Expired - Lifetime CN201241257Y (en) | 2008-07-29 | 2008-07-29 | Thread take-off transmission mechanism of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201241257Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101314898B (en) * | 2008-07-29 | 2011-09-07 | 张章生 | Hook line transmission mechanism of sewing machine |
| CN109722803A (en) * | 2019-01-03 | 2019-05-07 | 王贤虎 | A kind of various dimensions amplification noise reduction mechanism |
-
2008
- 2008-07-29 CN CNU2008201330244U patent/CN201241257Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101314898B (en) * | 2008-07-29 | 2011-09-07 | 张章生 | Hook line transmission mechanism of sewing machine |
| CN109722803A (en) * | 2019-01-03 | 2019-05-07 | 王贤虎 | A kind of various dimensions amplification noise reduction mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090520 Effective date of abandoning: 20080729 |