CN210561098U - Cloth feeding amount adjusting device for upper cloth feeding teeth - Google Patents
Cloth feeding amount adjusting device for upper cloth feeding teeth Download PDFInfo
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- CN210561098U CN210561098U CN201921537267.9U CN201921537267U CN210561098U CN 210561098 U CN210561098 U CN 210561098U CN 201921537267 U CN201921537267 U CN 201921537267U CN 210561098 U CN210561098 U CN 210561098U
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Abstract
The utility model belongs to the technical field of sewing machines, in particular to a cloth feeding amount adjusting device of an upper cloth feeding tooth; including last work feed mechanism, go up work feed mechanism including differential regulating spindle, the rear end face of casing is stretched out to the one end of differential regulating spindle, its characterized in that: a differential adjusting swing rod is arranged at one end of the differential adjusting shaft extending out of the rear end face of the shell, the differential adjusting swing rod can drive the differential adjusting shaft to synchronously rotate, the outer end of the differential adjusting swing rod extends out of the front side face of the shell and is connected with a differential adjusting plate, the differential adjusting plate is arranged on the front side face of the shell, an adjusting hole is formed in the differential adjusting plate, an adjusting button penetrates through the adjusting hole to be connected with the outer end of the differential adjusting swing rod, and the adjusting button moves up and down along the adjusting hole to drive the differential adjusting swing rod to swing up and down to finally realize the rotation of the differential; the utility model discloses simple structure, it is convenient, accurate to adjust, and the part is few, and is with low costs.
Description
The technical field is as follows:
the utility model belongs to the technical field of sewing machine, refer in particular to an upper feed dog work feed amount adjusting device.
Background art:
an upper feed dog is arranged on the model of part of the sewing machine. In the using process, the cloth feeding amount of the upper cloth feeding tooth needs to be adjusted according to the thickness and the material of the sewing cloth so as to meet the sewing requirement.
The chinese utility model patent (No. CN 209144399U, application date 2018.08.30) discloses a device for adjusting the amount of thread fed on a sewing machine, which comprises a differential adjusting shaft arranged on a casing and a differential adjusting rod vertically arranged with the differential adjusting shaft, wherein the differential adjusting rod is rotatably arranged on the casing, a threaded section is arranged on the differential adjusting rod, one end of the differential adjusting rod is provided with an adjusting knob, the threaded section is in threaded connection with a differential adjusting pin, the casing is provided with a sliding groove corresponding to the threaded section, one end of the differential adjusting pin is arranged in the sliding groove, the other end is connected with a differential adjusting swing rod through a differential adjusting connecting rod, the adjusting swing rod is arranged on the differential adjusting shaft, and the adjusting swing rod and the differential adjusting shaft synchronously swing; the adjusting knob is rotated to drive the differential adjusting pin to slide along the sliding groove so as to drive the differential adjusting shaft to swing.
The adjusting device has the defects of multiple parts, complex structure, high cost and the like.
The invention content is as follows:
the utility model aims at providing an upper feed dog feed amount adjusting device with simple structure and convenient adjustment.
The utility model discloses a realize like this:
the utility model provides an go up feed dog feed amount adjusting device, includes feed mechanism, goes up feed mechanism including differential regulating spindle, and the rear end face of casing is stretched out to the one end of differential regulating spindle, its characterized in that: the one end that stretches out the casing rear end face at differential regulating spindle is provided with the differential regulation pendulum rod, and the differential regulation pendulum rod can drive differential regulating spindle synchronous rotation, and the outer end of differential regulation pendulum rod stretches out outside the leading flank of casing and is connected with differential regulating plate, differential regulating plate sets up on the leading flank of casing, is provided with the regulation hole on differential regulating plate, and the knob passes the regulation hole and is connected with the outer end of differential regulation pendulum rod, and the knob reciprocates along the regulation hole and then drives the differential regulation pendulum rod luffing motion and finally realizes the rotation of differential regulating spindle.
In the above device for adjusting the cloth feeding amount of the upper feed dog, the adjusting hole is provided with an upper limiting member and a lower limiting member, the adjusting button moves up and down in the adjusting hole between the upper limiting member and the lower limiting member, and the positions of the upper limiting member and the lower limiting member in the adjusting hole are adjustable.
In the above device for adjusting the cloth feeding amount of the upper feed dog, the upper limit piece and the lower limit piece each include a limit nut clamped in the adjusting hole, a flat washer is arranged on the upper plane of the limit nut, and the screw penetrates through the flat washer and is screwed on the limit nut.
In the above device for adjusting the cloth feeding amount of the upper feed dog, the outer end of the differential adjusting swing rod is provided with a bending part, the bending part is provided with a threaded hole, and a screw of the adjusting knob passes through the adjusting hole and is screwed in the threaded hole.
In the above device for adjusting the cloth feeding amount of the upper feed dog, the outer end of the bent portion extends out of one side of the differential adjusting plate, and the corresponding side edge of the differential adjusting plate is provided with a scale line or a scale groove.
In the above-mentioned device for adjusting the feed amount of the upper feed dog, the outer end of the bent portion is provided with a mark used in cooperation with the scale line or the scale groove.
In the above device for adjusting the cloth feeding amount of the upper feed dog, an installation part perpendicular to the axis of the differential adjusting shaft is arranged at one end of the differential adjusting shaft extending out of the rear end face of the housing, and one end of the differential adjusting swing rod is attached to the outer surface of the installation part and is fixedly connected with the installation part through more than two screws.
In the above device for adjusting the feed amount of the upper feed dog, the upper end and the lower end of the differential adjusting plate are respectively provided with the mounting column, and the screw passes through the differential adjusting plate and the mounting column and is screwed on the front side surface of the casing.
In the above-described cloth feeding amount adjusting device for an upper feed dog, a portion between both ends of the differential adjusting plate has an arc-shaped structure.
In the above-described device for adjusting the feed amount of the upper feed dog, a butterfly-shaped spacer is provided between the upper surface of the differential adjustment plate and the adjustment knob.
Compared with the prior art, the utility model outstanding advantage is:
the utility model discloses simple structure, it is convenient, accurate to adjust, and the part is few, and is with low costs.
Description of the drawings:
FIG. 1 is one of the schematic views of the present invention mounted on a housing;
FIG. 2 is an enlarged schematic view of section A of FIG. 1;
fig. 3 is a second schematic view of the present invention mounted on a housing;
FIG. 4 is an enlarged schematic view of section B of FIG. 3;
fig. 5 is one of the schematic diagrams of the present invention;
fig. 6 is a second schematic view of the present invention;
fig. 7 is a schematic view of the connection between the differential adjusting swing link and the differential adjusting plate of the present invention;
fig. 8 is a schematic view of the differential adjustment pendulum of the present invention;
fig. 9 is a schematic view of the differential adjustment plate of the present invention.
In the figure: 1. a differential adjustment shaft; 2. a front and rear driving shaft of the upper feeding tooth; 3. an upper cloth feeding frame; 4. feeding teeth are arranged; 5. a shifting fork; 6. a first crank; 7. a first link; 8. a first sliding block; 9. a second sliding block; 10. a second crank; 11. an arc-shaped adjusting groove; 12. an upper feeding drive shaft; 13. a housing; 14. a third crank; 15. a second link; 16. an eccentric cam; 17. a sewing machine main shaft; 18. an upper feeding tooth upper and lower driving shaft; 19. a fourth crank; 20. an arc-shaped guide groove; 21. an adjusting screw; 22. a third link; 23. an upper tool post crank; 24. an upper holder shaft; 25. an upper knife connecting rod; 26. a differential adjusting swing rod; 27. a differential adjustment plate; 28. an adjustment hole; 29. adjusting a button; 30. a limit nut; 31. a flat washer; 32. a screw; 33. a bending part; 34. a threaded hole; 35. butterfly gaskets; 36. a scale groove; 37. marking; 38. an installation part; 39. and (6) mounting the column.
The specific implementation mode is as follows:
the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 9:
a cloth feeding amount adjusting device of an upper cloth feeding tooth comprises an upper cloth feeding mechanism used for conveying cloth along a cloth feeding direction. The upper cloth feeding mechanism consists of a front-back moving mechanism for driving the upper cloth feeding teeth to move front and back and a front-down moving mechanism for driving the upper cloth feeding teeth to move up and down.
The front and rear moving mechanism comprises a differential adjusting shaft 1 and an upper feeding tooth front and rear driving shaft 2, the upper feeding tooth front and rear driving shaft 2 is connected with the differential adjusting shaft 1 and is coaxially arranged, the front end of the upper feeding tooth front and rear driving shaft 2 is connected with an upper cloth feeding frame 3, and an upper feeding tooth 4 is arranged on the upper cloth feeding frame 3. Be provided with shift fork 5 on differential regulating spindle 1, the unsettled setting of fork portion of shift fork 5, be provided with first crank 6 on drive shaft 2 around last pay-off tooth, the other end of first crank 6 is connected with the one end of first connecting rod 7 through the crank pin, the other end of first connecting rod 7 is provided with the slider round pin, the both ends of slider round pin are stretched out outside first connecting rod 7 and are provided with slider one 8 and slider two 9 respectively, slider one 8 sets up within the fork portion of shift fork 5, slider two 9 sets up in arc adjustment tank 11 of second crank 10, second crank 10 sets firmly on last pay-off drive shaft 12, it sets up on casing 13 to go up pay-off drive shaft 12. The upper feeding driving shaft 12 is connected with an eccentric cam 16 through a third crank 14 and a second connecting rod 15, and the eccentric cam 16 is fixedly arranged on a main shaft 17 of the sewing machine. The sewing machine main shaft 17 is driven by a main shaft motor to rotate, and then drives the upper feed dog front and rear driving shaft 2 to rotate and finally drives the upper feed dog 4 to move back and forth.
The up-down moving mechanism comprises an upper feeding tooth upper and lower driving shaft 18, one end of the upper feeding tooth upper and lower driving shaft 18 is connected to the upper cloth feeding frame 3, a fourth crank 19 is arranged on the upper feeding tooth upper and lower driving shaft 18, an arc-shaped guide groove 20 is arranged on the fourth crank 19, an adjusting screw 21 is arranged in the arc-shaped guide groove 20, the adjusting screw 21 is connected with one end of a third connecting rod 22, the third connecting rod 22 is connected with an upper knife rest shaft crank 23, the upper knife rest shaft crank 23 is fixed on an upper knife rest shaft 24, and the upper knife rest shaft crank 23 is further connected with a sewing machine spindle 17 through an upper knife connecting rod 25. The sewing machine spindle 17 is driven to rotate by a spindle motor, and then drives the upper feed dog 3 to move up and down.
The adjusting device of the utility model is used for adjusting the front and back quantity of the upper feed dog 3. The method comprises the following steps: the rear end face of casing 13 is stretched out to the one end of differential regulating shaft 1, is provided with differential regulation pendulum rod 26 in the one end that differential regulating shaft 1 stretches out casing 13 rear end face, and differential regulation pendulum rod 26 can drive differential regulating shaft 1 and rotate in step, and the outer end of differential regulation pendulum rod 26 stretches out outside the leading flank of casing 13 and is connected with differential regulating plate 27, differential regulating plate 27 sets up on the leading flank of casing 13, is provided with regulation hole 28 on differential regulating plate 27, and the outer end that the knob 29 passed regulation hole 28 and differential regulation pendulum rod 26 is connected, and knob 29 reciprocates along regulation hole 28 and then drives differential regulation pendulum rod 26 luffing motion and finally realizes that differential regulating shaft 1 rotates certain angle. The adjustment of the front and rear cloth feeding amount of the upper cloth feeding teeth is adapted to the sewing of fabrics with different thicknesses and materials by adjusting the rotation angle of the differential adjusting shaft 1, so that different sewing requirements are met.
The differential adjustment swing link 26 of the present embodiment is a bent structure, so as to make the differential adjustment swing link 26 closer to the rear end surface of the casing 13, and ensure that the outer end of the adjustment swing link 26 extends outward from the front side surface of the casing 13.
In order to expand the universality, an upper limiting piece and a lower limiting piece are arranged on the adjusting hole 28, the adjusting button 29 moves up and down in the adjusting hole 28 between the upper limiting piece and the lower limiting piece, and the positions of the upper limiting piece and the lower limiting piece in the adjusting hole 28 are adjustable.
The upper limiting piece and the lower limiting piece both comprise limiting nuts 30 clamped in the adjusting holes 28, flat washers 31 are arranged on the upper planes of the limiting nuts 30, and screws 32 penetrate through the flat washers 31 and are screwed on the limiting nuts 30.
The upper limiting piece and the lower limiting piece can also be in the following structures: the upper and lower retainers are clipped to the differential adjustment plate 27 using a clip-type structure (similar to a clip). The present embodiment preferably employs the construction of the limit nut 30.
Furthermore, the outer end of the differential adjusting swing rod 26 is provided with a bending portion 33, the bending portion 33 is provided with a threaded hole 34, and a screw of the adjusting knob 29 passes through the adjusting hole 28 and is screwed in the threaded hole 34. A butterfly spacer 35 is provided between the upper surface of the differential adjustment plate 27 and the knob 29, and the knob 29 may be fixed to the differential adjustment plate 27 by the butterfly spacer. When the adjustment is needed, the adjusting button 29 is loosened, so that the force of the adjusting button 29 on the butterfly gasket 35 disappears, the differential adjusting swing rod 26 can swing up and down along the adjusting hole 28 to adjust the position, the adjusting button 29 is screwed up after the adjustment is completed, and at the moment, the differential adjusting shaft 1 is fixed.
In order to make the adjustment more intuitive and accurate, the outer end of the bending portion 33 extends out of one side of the differential adjustment plate 27, and a scale line or a scale groove 36 is arranged on the corresponding side of the differential adjustment plate 27.
The outer end of the bent portion 33 is provided with a mark 37 for cooperating with the graduation line or groove 36. The corresponding adjustment can be obtained by aligning the markings 37 with the corresponding graduation lines or graduation grooves 36.
The connecting structure of the differential adjusting shaft 1 and the differential adjusting swing rod 26 can also be connected in a spline and spline hole mode.
In order to provide a certain gap between the differential adjusting plate 27 and the front side of the casing 13, mounting posts 39 are respectively disposed at the upper and lower ends of the differential adjusting plate 27, and screws are screwed to the front side of the casing 13 through the differential adjusting plate 27 and the mounting posts 39. The portion between the two ends of the differential adjustment plate 27 is an arc-shaped structure.
The utility model discloses a differential regulation pendulum rod 26 is more close to the rear end face setting of casing 13, can not exert an influence to the automatically controlled installation of sewing machine.
In the present specification, the terms "upper", "lower", "left", "right", "middle" and "one" are used for convenience of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the corresponding parts may be changed or adjusted without substantial technical changes.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. The utility model provides an go up feed dog feed amount adjusting device, includes feed mechanism, goes up feed mechanism including differential regulating spindle (1), and the rear end face of casing (13) is stretched out to the one end of differential regulating spindle (1), its characterized in that: the one end that stretches out casing (13) rear end face in differential regulation axle (1) is provided with differential regulation pendulum rod (26), and differential regulation pendulum rod (26) can drive differential regulation axle (1) synchronous rotation, and the outer end of differential regulation pendulum rod (26) stretches out outside the leading flank of casing (13) and is connected with differential regulation board (27), differential regulation board (27) set up on the leading flank of casing (13), are provided with on differential regulation board (27) and adjust hole (28), and adjusting button (29) pass adjusting hole (28) and are connected with the outer end of differential regulation pendulum rod (26), and adjusting button (29) reciprocate along adjusting hole (28) and then drive differential regulation pendulum rod (26) luffing motion and finally realize the rotation of differential regulation axle (1).
2. The upper feed dog feed amount adjusting device according to claim 1, wherein: the adjusting device is characterized in that an upper limiting piece and a lower limiting piece are arranged on the adjusting hole (28), the adjusting button (29) moves up and down in the adjusting hole (28) between the upper limiting piece and the lower limiting piece, and the positions of the upper limiting piece and the lower limiting piece in the adjusting hole (28) are adjustable.
3. The upper feed dog feed amount adjusting device according to claim 2, wherein: the upper limiting piece and the lower limiting piece respectively comprise a limiting nut (30) clamped in the adjusting hole (28), a flat washer (31) is arranged on the upper plane of the limiting nut (30), and a screw (32) penetrates through the flat washer (31) and is screwed on the limiting nut (30).
4. The upper feed dog feed amount adjusting device according to claim 1, wherein: the outer end of the differential motion adjusting swing rod (26) is provided with a bending part (33), the bending part (33) is provided with a threaded hole (34), and a screw rod of the adjusting button (29) penetrates through the adjusting hole (28) and is screwed in the threaded hole (34).
5. The upper feed dog feed amount adjusting device according to claim 4, wherein: the outer end of the bending part (33) extends out of one side of the differential adjusting plate (27), and a scale line or a scale groove (36) is arranged on the corresponding side edge of the differential adjusting plate (27).
6. The upper feed dog feed amount adjusting device according to claim 5, wherein: the outer end of the bending part (33) is provided with a mark (37) which is matched with the scale mark or the scale groove (36).
7. The upper feed dog feed amount adjusting device according to claim 1, wherein: one end of the differential adjusting shaft (1) extending out of the rear end face of the shell (13) is provided with an installation part (38) vertical to the axis of the differential adjusting shaft (1), and one end of the differential adjusting swing rod (26) is attached to the outer surface of the installation part (38) and is fixedly connected with the installation part (38) through more than two screws.
8. The upper feed dog feed amount adjusting device according to claim 1, wherein: and the upper end and the lower end of the differential adjusting plate (27) are respectively provided with a mounting column (39), and a screw passes through the differential adjusting plate (27) and the mounting column (39) and is screwed on the front side surface of the machine shell (13).
9. The upper feed dog feed amount adjusting device according to claim 1 or 8, wherein: the part between the two ends of the differential adjusting plate (27) is of an arc-shaped structure.
10. The upper feed dog feed amount adjusting device according to claim 1, wherein: a butterfly gasket (35) is arranged between the upper surface of the differential adjusting plate (27) and the adjusting button (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921537267.9U CN210561098U (en) | 2019-09-16 | 2019-09-16 | Cloth feeding amount adjusting device for upper cloth feeding teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921537267.9U CN210561098U (en) | 2019-09-16 | 2019-09-16 | Cloth feeding amount adjusting device for upper cloth feeding teeth |
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| Publication Number | Publication Date |
|---|---|
| CN210561098U true CN210561098U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921537267.9U Active CN210561098U (en) | 2019-09-16 | 2019-09-16 | Cloth feeding amount adjusting device for upper cloth feeding teeth |
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| CN (1) | CN210561098U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115182103A (en) * | 2022-07-28 | 2022-10-14 | 东莞市扬侨电子自动化设备有限公司 | Cross type sewing machine |
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2019
- 2019-09-16 CN CN201921537267.9U patent/CN210561098U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115182103A (en) * | 2022-07-28 | 2022-10-14 | 东莞市扬侨电子自动化设备有限公司 | Cross type sewing machine |
| CN115182103B (en) * | 2022-07-28 | 2024-01-23 | 东莞市扬侨电子自动化设备有限公司 | Cross type sewing machine |
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