CN213624650U - Vertical synchronous feeding mechanism of sewing machine - Google Patents
Vertical synchronous feeding mechanism of sewing machine Download PDFInfo
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- CN213624650U CN213624650U CN202021869350.9U CN202021869350U CN213624650U CN 213624650 U CN213624650 U CN 213624650U CN 202021869350 U CN202021869350 U CN 202021869350U CN 213624650 U CN213624650 U CN 213624650U
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- side plate
- feeding roller
- gear
- feed roll
- sewing machine
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Abstract
The utility model discloses a sewing machine's upper and lower synchronous feeding mechanism, including bottom plate, last feed roll and lower feed roll, the vertical first curb plate of upper end fixedly connected with and the second curb plate of bottom plate, go up feed roll and lower feed roll and rotate respectively and connect between first curb plate and second curb plate, and go up the upside that the feed roll correspondence set up feed roll under, the first motor of fixedly connected with on the lateral wall that the second curb plate was kept away from to first curb plate, the drive shaft of first motor runs through first curb plate and fixed cup joints first gear, the fixed second gear that has cup jointed with first gear engagement in the outside of feed roll down. The utility model discloses can be corresponding adjust the degree of progress of the belt in the transmission course to the transfer rate who changes the feed roll satisfies the speed change that different pay-off in-process lines were carried, reduces the state that the tensioning or relaxed appear in the lines, with the quality that improves the pay-off.
Description
Technical Field
The utility model relates to a sewing machine technical field especially relates to sewing machine's upper and lower synchronous feeding mechanism.
Background
The sewing machine is a machine which uses one or more sewing threads to form one or more stitches on a sewing material to enable one or more layers of the sewing material to be interwoven or sewn, and the upper and lower needle pitches of the sewing machine are sometimes required to be adjusted in the using process of the sewing machine so as to meet the sewing requirement of the sewing machine.
The existing sewing machine generally uses a vertical synchronous structure to feed materials in the feeding process so as to improve the feeding efficiency and ensure the regularity of feeding, but the existing vertical synchronous feeding structure is not easy to adjust the feeding speed, namely, the feeding speed is too fast or too slow in the feeding process to influence the use of thread materials.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an upper and lower synchronous feeding mechanism of a sewing machine.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the vertical synchronous feeding mechanism of the sewing machine comprises a bottom plate, an upper feeding roller and a lower feeding roller, wherein the upper end of the bottom plate is fixedly connected with a vertical first side plate and a vertical second side plate, the upper feeding roller and the lower feeding roller are respectively and rotatably connected between the first side plate and the second side plate, the upper feeding roller is correspondingly arranged on the upper side of the lower feeding roller, the side wall of the first side plate, which is far away from the second side plate, is fixedly connected with a first motor, the driving shaft of the first motor penetrates through the first side plate and is fixedly sleeved with a first gear, the outer side of the lower feeding roller is fixedly sleeved with a second gear meshed with the first gear, the outer end of one side, which is far away from the first gear, of the lower feeding roller is sleeved with a first chain wheel, the side wall of the second side plate, which is between the lower feeding roller and the upper feeding roller, is rotatably connected with a horizontal rotating shaft, the outer side of the rotating shaft is fixedly sleeved with, the rotating shaft is connected with the upper feeding roller through a speed regulating mechanism.
Preferably, the first motor is connected with the first side plate through a mounting plate, the mounting plate is fixedly connected with the first side plate through a plurality of screws, and the outer diameter value of the first gear is larger than that of the second gear.
Preferably, the first sprocket has an outer diameter value that is less than an outer diameter value of the second sprocket.
Preferably, speed adjusting mechanism is including fixed first belt pulley of cup joint in the pivot outside, fixed cup joint has the second belt pulley on the lateral wall of last feed roll, and is connected by same root belt between second belt pulley and the first belt pulley, the external diameter value of first belt pulley is greater than the external diameter value of second belt pulley, belt inboard between first belt pulley and the second belt pulley is connected with two regulating rollers, and the belt is connected with the lateral wall of regulating roller, the belt adopts elastic rubber to make.
Preferably, two transverse grooves corresponding to the adjusting rollers are formed in the side wall of the second side plate, the inner wall of each transverse groove is connected with the same screw rod in a rotating mode, one end, far away from each transverse groove, of each screw rod extends to the outer side of the second side plate and is fixedly connected with a second motor, moving blocks are sleeved on the outer side of the screw rods in the transverse grooves in a threaded mode, and the adjusting rollers are connected with the moving blocks through transverse shafts.
Preferably, the threads on the side walls of the screws in the two transverse grooves are arranged in opposite directions, and the moving block is connected with the inner wall of the transverse groove in a sliding manner.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses under the use of first motor, can make the stable rotation of feed roll down, it is connected with the pivot to rotate on the lateral wall of second curb plate in addition, and by chain drive between pivot and the lower feed roll, stability when rotating between feed roll and the pivot can be guaranteed down, it is further, through being connected with speed adjusting mechanism between pivot and last feed roll, can be corresponding adjust the degree of progress of belt to the transmission in-process, with the transfer rate who changes the feed roll, satisfy the speed change that different pay-off in-process lines were carried, reduce the state that the tensioning appears in the lines or relaxed, in order to improve the quality of pay-off.
Drawings
FIG. 1 is a schematic view of an external structure of an up-and-down synchronous feeding mechanism of a sewing machine according to the present invention;
FIG. 2 is a side partial structure view of a speed regulating mechanism of an up-down synchronous feeding mechanism of the sewing machine of the present invention;
fig. 3 is a schematic front structural view of the vertical synchronous feeding mechanism of the sewing machine of the present invention.
In the figure: the automatic feeding device comprises a base plate 1, an upper feeding roller 2, a lower feeding roller 3, a first side plate 4, a second side plate 5, a first motor 6, a first gear 7, a second gear 8, a first chain wheel 9, a rotating shaft 10, a second chain wheel 11, a first belt wheel 12, a second belt wheel 13, a belt 14, an adjusting roller 15, a screw 16, a second motor 17, a moving block 18 and a transverse shaft 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, the vertical synchronous feeding mechanism of the sewing machine comprises a bottom plate 1, an upper feeding roller 2 and a lower feeding roller 3, wherein the upper end of the bottom plate 1 is fixedly connected with a vertical first side plate 4 and a vertical second side plate 5, the upper feeding roller 2 and the lower feeding roller 3 are respectively and rotatably connected between the first side plate 4 and the second side plate 5, the upper feeding roller 2 is correspondingly arranged at the upper side of the lower feeding roller 3, a first motor 6 is fixedly connected on the side wall of the first side plate 4 far away from the second side plate 5, a driving shaft of the first motor 6 penetrates through the first side plate 4 and is fixedly sleeved with a first gear 7, a second gear 8 meshed with the first gear 7 is fixedly sleeved at the outer side of the lower feeding roller 3, the first motor 6 is connected with the first side plate 4 through a mounting plate, the mounting plate is fixedly connected with the first side plate 4 through a plurality of screws, and the outer diameter value of the first gear 7 is larger, the first motor 6 and the first side plate 4 are conveniently disassembled and assembled, and the lower feeding roller 3 is stably rotated under the transmission of the first gear 7 and the second gear 8.
Wherein the outer end of one side of the lower feed roll 3 far away from the first gear 7 is sleeved with a first chain wheel 9, the side wall of the second side plate 5 between the lower feed roll 3 and the upper feed roll 2 is connected with a horizontal rotating shaft 10 in a rotating manner, the outer side of the rotating shaft 10 is fixedly sleeved with a second chain wheel 11, the second chain wheel 11 is connected with the first chain wheel 9 through a chain, the outer diameter value of the first chain wheel 9 is smaller than that of the second chain wheel 11, and the stability of the lower feed roll 3 in rotation with the rotating shaft 10 is ensured.
Wherein, the rotating shaft 10 is connected with the upper feed roll 2 by a speed adjusting mechanism, concretely, the speed adjusting mechanism comprises a first belt pulley 12 fixedly sleeved outside the rotating shaft 10, a second belt pulley 13 is fixedly sleeved on the outer side wall of the upper feed roll 2, the second belt pulley 13 is connected with the first belt pulley 12 by a same belt 14, the outer diameter value of the first belt pulley 12 is larger than the outer diameter value of the second belt pulley 13, the inner side of the belt 14 between the first belt pulley 12 and the second belt pulley 13 is connected with two adjusting rolls 15, the belt 14 is connected with the outer side wall of the adjusting rolls 15, the belt 14 is made of elastic rubber, concretely, two transverse grooves corresponding to the adjusting rolls 15 are arranged on the side wall of the second side plate, the inner walls of the two transverse grooves are rotatably connected with a same screw 16, and one end of the screw 16 far away from the transverse grooves extends to the outer side of the second side plate 5 and is fixedly connected with a second motor 17, the movable block 18 is sleeved on the outer side threads of the screws 16 in the transverse grooves, the threads on the side walls of the screws 16 in the two transverse grooves are arranged in a reverse direction, the movable block 18 is connected with the inner wall of the transverse groove in a sliding mode, the adjusting roller 15 is connected with the movable block 18 through the transverse shaft 19, and under the use of the speed regulating mechanism, the adjusting roller 15 can adjust the tension progress of the belt 14, so that the corresponding transmission rate of the belt 14 is adjusted, and the speed regulation of the upper feed roller 2 is realized.
The working principle is as follows: the utility model discloses in, under the use of first motor 6, can make the stable rotation of feed roll 3 down, it is connected with pivot 10 to rotate in addition on the lateral wall of second curb plate 5, and by chain drive between pivot 10 and the feed roll 3 down, stability when rotating between feed roll 3 and the pivot 10 down can be guaranteed, furthermore, through be connected with speed governing mechanism between pivot 10 and last feed roll 2, can be corresponding adjust the degree of progress of belt 14 to the transmission in-process, with the transfer rate who changes feed roll 2, satisfy the speed change that different pay-off in-process lines were carried, reduce the state that the tensioning appears in the lines or relaxed, with the quality that improves the pay-off.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. An upper and lower synchronous feeding mechanism of a sewing machine comprises a bottom plate (1), an upper feeding roller (2) and a lower feeding roller (3), and is characterized in that the upper end of the bottom plate (1) is fixedly connected with a vertical first side plate (4) and a vertical second side plate (5), the upper feeding roller (2) and the lower feeding roller (3) are respectively and rotatably connected between the first side plate (4) and the second side plate (5), the upper feeding roller (2) is correspondingly arranged on the upper side of the lower feeding roller (3), a first motor (6) is fixedly connected onto the side wall of the first side plate (4) far away from the second side plate (5), a driving shaft of the first motor (6) penetrates through the first side plate (4) and is fixedly sleeved with a first gear (7), a second gear (8) meshed with the first gear (7) is fixedly sleeved on the outer side of the lower feeding roller (3), and an outer end of the lower feeding roller (3) far away from the first gear (7) is sleeved with a first chain wheel (9), the horizontal rotating shaft (10) is rotatably connected to the side wall of the second side plate (5) between the lower feeding roller (3) and the upper feeding roller (2), a second chain wheel (11) is fixedly sleeved on the outer side of the rotating shaft (10), the second chain wheel (11) is connected with the first chain wheel (9) through a chain, and the rotating shaft (10) is connected with the upper feeding roller (2) through a speed regulating mechanism.
2. The vertical synchronous feeding mechanism of a sewing machine according to claim 1, wherein the first motor (6) is connected with the first side plate (4) by a mounting plate, the mounting plate is fixedly connected with the first side plate (4) by a plurality of screws, and the outer diameter value of the first gear (7) is larger than that of the second gear (8).
3. Upper and lower synchronous feed mechanism of a sewing machine according to claim 1, characterized in that the outer diameter value of the first sprocket (9) is smaller than the outer diameter value of the second sprocket (11).
4. The vertical synchronous feeding mechanism of a sewing machine according to claim 1, wherein the speed adjusting mechanism comprises a first belt pulley (12) fixedly sleeved on the outer side of the rotating shaft (10), a second belt pulley (13) is fixedly sleeved on the outer side wall of the upper feeding roller (2), the second belt pulley (13) is connected with the first belt pulley (12) through a same belt (14), the outer diameter value of the first belt pulley (12) is larger than that of the second belt pulley (13), two adjusting rollers (15) are connected to the inner side of the belt (14) between the first belt pulley (12) and the second belt pulley (13), the belt (14) is connected with the outer side wall of the adjusting rollers (15), and the belt (14) is made of elastic rubber.
5. The vertical synchronous feeding mechanism of the sewing machine according to claim 4, wherein the side wall of the second side plate is provided with two transverse grooves corresponding to the adjusting roller (15), the inner walls of the two transverse grooves are rotatably connected with a same screw rod (16), one end of the screw rod (16) far away from the transverse grooves extends to the outer side of the second side plate (5) and is fixedly connected with a second motor (17), the outer side of the screw rod (16) in the transverse grooves is sleeved with a moving block (18) in a threaded manner, and the adjusting roller (15) is connected with the moving block (18) through a transverse shaft (19).
6. The vertical synchronous feeding mechanism of sewing machine according to claim 5, characterized in that the threads on the side walls of the screws (16) in the two transverse grooves are arranged in opposite directions, and the moving block (18) is slidably connected with the inner wall of the transverse groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021869350.9U CN213624650U (en) | 2020-09-01 | 2020-09-01 | Vertical synchronous feeding mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021869350.9U CN213624650U (en) | 2020-09-01 | 2020-09-01 | Vertical synchronous feeding mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213624650U true CN213624650U (en) | 2021-07-06 |
Family
ID=76646416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021869350.9U Active CN213624650U (en) | 2020-09-01 | 2020-09-01 | Vertical synchronous feeding mechanism of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213624650U (en) |
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2020
- 2020-09-01 CN CN202021869350.9U patent/CN213624650U/en active Active
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