CN121407316A - A motion device for the feed dog of a high-platform column sewing machine - Google Patents
A motion device for the feed dog of a high-platform column sewing machineInfo
- Publication number
- CN121407316A CN121407316A CN202511985046.8A CN202511985046A CN121407316A CN 121407316 A CN121407316 A CN 121407316A CN 202511985046 A CN202511985046 A CN 202511985046A CN 121407316 A CN121407316 A CN 121407316A
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- feeding
- tooth
- crank
- shaft
- lifting
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Abstract
The invention provides a motion device of a feeding tooth of a high stand column sewing machine, and belongs to the technical field of sewing machines. It has solved the inconvenient problem of current feeding tooth's motion installation. The motion device of the feeding teeth of the high stand column sewing machine comprises a lower feeding shaft, a feeding tooth shaft, a tooth frame, a sliding rod, a feeding crank and a feeding tooth connecting rod, wherein the left end of the feeding tooth shaft is fixedly connected with the feeding tooth crank, the sliding rod is arranged in a stand column, the sliding rod can slide up and down and swing back and forth relative to the stand column, the top of the sliding rod is fixedly connected with the feeding tooth, the bottom of the sliding rod is hinged with the middle of the tooth frame, the top of the feeding crank is fixedly connected with the left end of the lower feeding shaft, the bottom of the feeding crank is hinged with the rear end of the tooth frame, the top of the feeding tooth connecting rod is hinged with the feeding tooth crank, the bottom of the feeding tooth connecting rod is hinged with the front end of the tooth frame, the bottom of the sliding rod is provided with a bending section, and the bending section encloses an avoidance space. The motion device of the feeding tooth of the high stand column sewing machine has the advantages of convenient installation and good stability.
Description
Technical Field
The invention belongs to the technical field of sewing machines, and relates to a motion device of a feeding tooth of a high stand column sewing machine.
Background
The sewing machine is mainly a machine which uses a sewing thread to form a stitch on the sewing material and interweaves or sews one or more layers of sewing material. The sewing machine comprises a feeding tooth, and cloth feeding is realized through the periodic motion of the feeding tooth approximate to an elliptical track.
The conventional motion structure of feeding teeth, such as Chinese patent document data, discloses a sewing material conveying device and sewing equipment (patent number: 201920961660.4; application publication number: CN 211005885U), a needle, a first driving component in transmission connection with the needle to drive the needle to reciprocate up and down, a feeding component comprising a needle plate and feeding teeth, wherein the needle plate is arranged below the needle, the needle plate is provided with a feeding port, the feeding teeth are arranged in the feeding port, and a swinging mechanism comprising a first swinging component and a second swinging component, wherein the first swinging component is arranged at the bottom side of the needle plate to drive the feeding teeth to swing, and the second swinging component is in transmission connection with the needle to drive the needle to swing.
The bottom of pay-off tooth base links firmly with first pay-off axle, and the top of pay-off tooth base articulates mutually with the pay-off tooth support, has seted up the sliding tray that sets up along vertical direction in the slide bar, and the embedding is provided with the sliding block in the sliding tray, and the sliding block articulates mutually with the mount pad that links firmly on the sewing machine bottom plate, and this hinge point makes the pay-off tooth more than once the switching-over, consequently needs to set up an additional steering gear in sewing equipment, carries out the switching-over once through the steering gear for offset this hinge point and make the switching-over that the pay-off tooth has more than once. The installation of the steering gear needs to adjust the connection of the existing parts, meanwhile, the space inside the sewing equipment is limited, the steering gear is troublesome to install, potential fault points are added to the installation of the steering gear, and the stability of the sewing equipment is reduced.
Disclosure of Invention
The invention aims at solving the problems in the prior art, and provides a motion device for a feeding tooth of a high stand column sewing machine, which solves the technical problems of convenient installation and good stability.
The invention discloses a motion device of a feeding tooth of a high stand column sewing machine, which comprises a lower feeding shaft, a lifting tooth shaft, a tooth frame and a sliding rod, wherein the left end of the lifting tooth shaft is fixedly connected with a lifting tooth crank, the sliding rod is arranged in a stand column, the sliding rod can slide up and down and swing back and forth relative to the stand column, the top of the sliding rod is fixedly connected with a feeding tooth, the bottom of the sliding rod is hinged with the middle part of the tooth frame.
When the feeding device works, the lower feeding shaft drives the feeding teeth to move back and forth through the feeding crank, the tooth frame and the sliding rod, and the feeding teeth are driven to move up and down through the tooth lifting crank, the tooth lifting connecting rod, the tooth frame and the sliding rod, so that the feeding teeth form periodic motion similar to an elliptical track, and cloth feeding is realized. The feeding crank of the motion device extends downwards, the top of the feeding crank is fixedly connected with the lower feeding shaft, the bottom of the feeding crank is hinged with the rear end of the dental frame, the direction of the feeding crank extending upwards in the prior art is just opposite to that of the feeding crank driving dental frame to move forwards and backwards, and the direction of the feeding crank driving dental frame moving forwards and backwards is opposite to that of the prior art, so that the hinged direction change between the sliding rod and the upright post can be counteracted, the sewing machine does not need to additionally add a steering gear, the motion device is convenient to install, the failure rate is reduced, and the stability of the motion device is good. The feeding crank of the moving device extends downwards, the tooth lifting connecting rod is in a strip shape, the installation position of the tooth rack is lowered, the bottom of the sliding rod is provided with an arc-shaped bending section, and the installation of the rotating shuttle base can be avoided through the bending section, so that the moving device is reasonable in arrangement and convenient to install.
In the motion device of the feeding tooth of the high stand column sewing machine, the tooth frame is long-strip-shaped, the front end and the rear end of the tooth frame are all upward tilting, the bottom of the feeding crank is provided with a feeding groove, the rear end of the tooth frame is embedded into the feeding groove and hinged with the feeding crank through a feeding hinge shaft, the front end of the tooth frame is provided with a hinge groove, and the bottom of the lifting tooth connecting rod is embedded into the hinge groove and hinged with the tooth frame through a lifting tooth hinge shaft. The tooth frame is in a strip shape, occupies small space, is reasonable in arrangement, is convenient to install, and is provided with the front end and the rear end which are tilted upwards, so that the tooth frame can be hinged with the feeding crank and the tooth lifting connecting rod better; the rear end of the tooth frame is embedded into the feed chute and hinged with the feed crank through the feed hinge shaft, so that the feed crank is provided with two pushing points, the feed crank can better push the tooth frame to move back and forth, the bottom of the tooth lifting connecting rod is embedded into the hinge groove and hinged with the tooth frame through the tooth lifting hinge shaft, and the tooth lifting connecting rod can better pull the tooth frame to move up and down through the structure.
In the motion device of the feeding tooth of the high stand column sewing machine, the tooth frame is provided with the avoiding groove for avoiding the bending section, and the avoiding groove is arranged along the front-back direction of the sewing machine. The tooth frame and the slide bar can rotate relatively, the setting of avoiding the groove avoids the mutual joint of tooth frame and slide bar, improves the stability of motion.
In the motion device of the feeding tooth of the high stand column sewing machine, the bending section is arranged to be protruded towards the feeding crank, and the opening of the bending section is arranged to be protruded towards the lifting tooth connecting rod. The structure reasonably utilizes the internal space of the sewing machine, ensures that the bent sections are reasonably arranged, and ensures that the arrangement is convenient when the sliding rod is installed.
In the above-mentioned motion device of the feeding tooth of the stand column sewing machine, the height of the lifting tooth connecting rod is not smaller than the height of the bending section. The structure enables the dental articulator to be located at a reasonable position.
In the motion device of the feeding tooth of the high stand column sewing machine, the motion device further comprises a lower shaft, a lifting tooth eccentric crank fixedly connected to the lower shaft and a connecting crank fixedly connected to the right end of the lifting tooth shaft, the lower shaft is located between the lower feeding shaft and the lifting tooth shaft, an arc-shaped strip-shaped groove is formed in the outer end of the connecting crank, a rotating shaft is hinged to the outer end of the lifting tooth eccentric crank, the rotating shaft penetrates through the strip-shaped groove and is locked through a nut to enable the lifting tooth eccentric crank to be hinged to the connecting crank, and the lower shaft drives the feeding tooth to move up and down through the lifting tooth eccentric crank, the connecting crank, the lifting tooth shaft, the lifting tooth crank, the lifting tooth connecting rod, the tooth frame and the sliding rod. The bar-shaped groove is arc-shaped and is a long bar-shaped groove, the rotating shaft penetrates through the middle part or two ends of the bar-shaped groove, the distance between the eccentric crank of the lifting tooth and the right end of the lifting tooth shaft is changed, namely the effective working length of the connecting crank is changed, when the distance is large, the rotating amplitude of the lifting tooth shaft is reduced, the amplitude of the upward and downward movement of the feeding tooth is reduced, the movement of the feeding tooth which approximates to an elliptical track is flattened, when the distance is small, the rotating amplitude of the lifting tooth shaft is enlarged, the amplitude of the upward and downward movement of the feeding tooth is increased, the movement of the feeding tooth which approximates to the elliptical track is rounded, the movement track of the feeding tooth is finely adjusted, and the lower shaft is positioned between the lower feeding shaft and the lifting tooth shaft, so that the movement device is compact in structure.
In the motion device of the feeding tooth of the high stand column sewing machine, the sewing machine further comprises a bottom plate, an accommodating groove is formed in the edge of the middle of the bottom plate, and the outer ends of the connecting crank and the eccentric crank of the lifting tooth are both located in the accommodating groove. The holding groove is located the border department of bottom plate, makes things convenient for the operator to finely tune the motion trail of feeding tooth.
In the motion device of the feeding tooth of the high stand column sewing machine, the left end of the lower feeding shaft is sleeved with the eccentric shaft sleeve, an opening seam penetrating along the axial direction of the eccentric shaft sleeve is formed in the eccentric shaft sleeve, a through hole for the left end of the lower feeding shaft to penetrate is formed in the top of the feeding shaft, a clamping seam axially arranged along the through hole and communicated with the through hole is formed in the top of the feeding shaft, convex edges protruding outwards are formed in the upper side and the lower side of the clamping seam respectively, the two convex edges are locked through bolts, and the eccentric shaft sleeve is fixedly connected in the through hole in a penetrating mode. The height of the rear end of the tooth frame can be changed by rotating the eccentric shaft sleeve, when the thinner wall thickness of the eccentric shaft sleeve is upward, the height of the rear end of the tooth frame is lower, the rear end track of the feeding tooth is similar to an elliptical track, when the thicker wall thickness of the eccentric shaft sleeve is upward, the height of the rear end of the tooth frame is higher, the rear end track of the feeding tooth is similar to the elliptical track, simultaneously, the lifting crank can rotate a certain angle relative to the lifting shaft and then be fixed, so that the height of the front end of the tooth frame is adjustable, the front end track of the feeding tooth is similar to the elliptical track, and the movement track of the feeding tooth is finely adjusted to adapt to different materials, and the setting of the opening seam and the clamping seam enables the eccentric shaft sleeve to be more tightly fixed on the lower feeding shaft, so that the fine adjustment stability of the feeding tooth track is improved.
In the motion device of the feeding teeth of the high stand column sewing machine, the motion device further comprises a feeding eccentric crank fixedly connected to the lower shaft and a feeding swing assembly arranged at the middle part or the right end of the lower feeding shaft, the outer end of the feeding eccentric crank is hinged to the feeding swing assembly, and the lower shaft can drive the feeding teeth to move back and forth through the feeding eccentric crank, the feeding swing assembly, the lower feeding shaft, the feeding crank, the tooth frame and the sliding rod. The structure has the advantages that the structure that the lower shaft drives the feeding teeth to move forwards and backwards is simple, the occupied installation space is small, the feeding swing assembly is a swing assembly commonly used for a sewing machine, and the detailed structure is not repeated in the prior art.
In the motion device of the feeding tooth of the high stand column sewing machine, the stand column is provided with the mounting groove, the width of the mounting groove is larger than that of the sliding rod, the sliding rod is embedded and arranged in the mounting groove, the top of the stand column is fixedly connected with the limiting piece, the top of the sliding rod is enabled to lean against the bottom of the mounting groove by the limiting piece, the bottom of the mounting groove is provided with the sliding groove arranged along the vertical direction, the sliding rod is hinged with the sliding block in a cuboid shape, and the sliding block is embedded and arranged in the sliding groove and can slide up and down along the sliding groove. The structure ensures that the slide bar can slide up and down and swing back and forth relative to the upright post, and has simple structure.
Compared with the prior art, the motion device of the feeding tooth of the high stand column sewing machine provided by the invention has the following advantages:
1. The feeding crank of the motion device extends downwards, the direction of the feeding crank extending upwards is just opposite to that of the feeding crank in the prior art, namely the direction of the feeding crank driving the dental frame to move forwards and backwards is opposite to that of the prior art, and the hinged reversing between the sliding rod and the upright post can be counteracted, so that the sewing machine does not need to additionally add a steering gear, the motion device is convenient to install, the failure rate is reduced, and the stability of the motion device is good.
2. The swing amplitude of the lifting tooth shaft can be adjusted by arranging the arc-shaped strip-shaped groove at the outer end of the connecting crank, and the height of the rear end of the tooth frame can be changed by arranging the eccentric shaft sleeve, so that the similar elliptical running track of the feeding tooth can be changed, and the sewing machine is suitable for sewing of different sewing materials.
Drawings
Fig. 1 is a schematic structural view of the high stand column sewing machine.
Fig. 2 is a left-hand overall structure schematic diagram of the motion device of the feeding tooth.
Fig. 3 is a right-hand overall structure schematic diagram of the motion device of the feeding tooth.
Fig. 4 is a schematic view of the structure of the feeding tooth at the tooth frame of the movement device.
Fig. 5 is an enlarged view of the area a in fig. 1 of the present high stand column sewing machine.
Fig. 6 is a schematic view of the overall structure of the eccentric sleeve of the motion device of the feeding tooth.
In the drawing, 1, a lower feeding shaft, 2, a lifting tooth shaft, 3, a tooth frame, 31, a avoiding groove, 32, a hinge groove, 4, a sliding rod, 41, a bending section, 5, a lifting tooth crank, 6, a column, 61, a mounting groove, 62, a sliding groove, 7, a feeding tooth, 8, a feeding crank, 81, a feeding groove, 82, a through hole, 83, a clamping slot, 84, a convex edge, 9, a lifting tooth connecting rod, 10, a feeding hinge shaft, 11, a lifting tooth hinge shaft, 12, a lower shaft, 13, a lifting tooth eccentric crank, 14, a connecting crank, 141, a strip-shaped groove, 15, a rotating shaft, 16, a bottom plate, 161, a containing groove, 17, an eccentric shaft sleeve, 171, an opening slot, 18, a feeding eccentric crank, 19, a feeding swing assembly, 20, a limiting piece, 21 and a sliding block.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1, the high stand 6 sewing machine includes a base plate 16 and a moving device provided in the base plate 16. As shown in fig. 2 and 3, the motion device of the feeding tooth 7 of the sewing machine of the stand column 6 comprises a lower feeding shaft 1, a lifting tooth shaft 2, a tooth frame 3, a sliding rod 4, a lifting tooth crank 5, a feeding crank 8, a lifting tooth connecting rod 9, a lower shaft 12, a lifting tooth eccentric crank 13, a connecting crank 14, an eccentric shaft sleeve 17, a feeding eccentric crank 18 and a feeding swing assembly 19.
The upright post 6 is fixedly connected to the bottom plate 16, the sliding rod 4 is arranged in the upright post 6, the top of the sliding rod 4 is fixedly connected with the feeding tooth 7, the bottom of the sliding rod 4 is hinged with the middle part of the tooth frame 3, and the sliding rod 4 can slide up and down and swing back and forth relative to the upright post 6. Specifically, the upright post 6 is provided with a mounting groove 61, the width of the mounting groove 61 is larger than that of the sliding rod 4, the sliding rod 4 is embedded in the mounting groove 61, the top of the upright post 6 is fixedly connected with a limiting piece 20, the limiting piece 20 enables the top of the sliding rod 4 to be abutted to the bottom of the mounting groove 61, a sliding groove 62 arranged in the vertical direction is arranged in the bottom of the mounting groove 61, the sliding rod 4 is hinged with a cuboid sliding block 21, the sliding block 21 is embedded in the sliding groove 62, and the sliding block 21 can slide up and down along the sliding groove 62.
The lower shaft 12 is positioned between the lower feeding shaft 1 and the feed lifting tooth shaft 2, the lower shaft 12 is fixedly connected with a feed lifting tooth eccentric crank 13 and a feed lifting eccentric crank 18, the feed lifting tooth eccentric crank 13 is positioned on the left side of the feed lifting eccentric crank 18, and a space is reserved between the feed lifting tooth eccentric crank 13 and the feed lifting eccentric crank 18. As shown in fig. 4, the dental frame 3 is in a long strip shape, and both front and rear ends of the dental frame 3 are upward tilted.
The left end of the lifting tooth shaft 2 is fixedly connected with a lifting tooth crank 5, the right end of the lifting tooth shaft 2 is fixedly connected with a connecting crank 14, the outer end of the connecting crank 14 is provided with an arc-shaped bar-shaped groove 141, the outer end of the lifting tooth eccentric crank 13 is hinged with a rotating shaft 15, and the rotating shaft 15 penetrates through the bar-shaped groove 141 and is locked by a nut to enable the lifting tooth eccentric crank 13 to be hinged with the connecting crank 14. As shown in fig. 5, the edge of the middle part of the bottom plate 16 is provided with a containing groove 161, and the outer ends of the connecting crank 14 and the lifting tooth eccentric crank 13 are positioned in the containing groove 161. The lifting tooth connecting rod 9 is in a strip shape, the top of the lifting tooth connecting rod 9 is hinged with the lifting tooth crank 5, the front end of the tooth frame 3 is provided with a hinge groove 32, the bottom of the lifting tooth connecting rod 9 is embedded into the hinge groove 32, and the lifting tooth connecting rod 9 is hinged with the tooth frame 3 through the lifting tooth hinge shaft 11. The lower shaft 12 can drive the feeding tooth 7 to move up and down through the tooth lifting eccentric crank 13, the connecting crank 14, the tooth lifting shaft 2, the tooth lifting crank 5, the tooth lifting connecting rod 9, the tooth frame 3 and the slide bar 4.
The left end of the lower feeding shaft 1 is sleeved with an eccentric shaft sleeve 17, as shown in fig. 6, the eccentric shaft sleeve 17 is provided with an opening seam 171 penetrating along the axial direction of the eccentric shaft sleeve 17, the top of the feeding crank 8 is provided with a through hole 82 for the left end of the lower feeding shaft 1 to penetrate, the top of the feeding crank 8 is provided with a clamping seam 83 which is axially arranged along the through hole 82 and is communicated with the through hole 82, the top of the feeding crank 8 is provided with convex edges 84 which are arranged to protrude outwards on the upper side and the lower side of the clamping seam 83, the two convex edges 84 are locked by bolts, the eccentric shaft sleeve 17 is penetrated and fixedly connected in the through hole 82, the bottom of the feeding crank 8 is provided with a feeding groove 81, and the rear end of the tooth rack 3 is embedded in the feeding groove 81 and hinged with the feeding crank 8 by a feeding hinge shaft 10. In this embodiment, the middle part of the lower feeding shaft 1 is provided with a feeding swing assembly 19, the outer end of the feeding eccentric crank 18 is hinged with the feeding swing assembly 19, and in actual production, the right end of the lower feeding shaft 1 may be provided with the feeding swing assembly 19. The lower shaft 12 can drive the feeding teeth 7 to move back and forth through the feeding eccentric crank 18, the feeding swinging assembly 19, the lower feeding shaft 1, the feeding crank 8, the tooth frame 3 and the sliding rod 4.
The bottom of the slide bar 4 is provided with an arc-shaped bending section 41, the bending section 41 is arranged towards the feeding crank 8 in a protruding way, the opening of the bending section 41 faces the lifting tooth connecting rod 9, and the bending section 41 encloses an avoidance space for avoiding the rotating shuttle base. The dental frame 3 has a relief groove 31 for relieving the curved section 41, and the relief groove 31 is provided in the front-rear direction of the sewing machine. The height of the lifting tooth connecting rod 9 is not smaller than the height of the bending section 41.
The sewing machine is used for driving the lower shaft 12 to rotate from the motor, and when the sewing machine works, the motor drives the lower shaft 12 to rotate, the lower shaft 12 rotates to drive the feed rack 3 to move back and forth through the feed eccentric crank 18, the feed swinging assembly 19, the lower feed shaft 1 and the feed crank 8, and simultaneously, the lower shaft 12 rotates to drive the feed rack 3 to move up and down through the feed lifting eccentric crank 13, the connecting crank 14, the feed lifting shaft 2, the feed lifting crank 5 and the feed lifting connecting rod 9, and the two movements are combined, so that the slide bar 4 can slide up and down relative to the upright post 6 and swing back and forth, the feed feeding tooth 7 at the top of the slide bar 4 generates an approximately elliptical movement track, and cloth feeding is realized.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although terms such as the lower feed shaft 1, the feed lifting shaft 2, the hanger 3, the escape groove 31, the hinge groove 32, the slide bar 4, the bent section 41, the feed lifting crank 5, the column 6, the mounting groove 61, the slide groove 62, the feed feeding tooth 7, the feed crank 8, the feed groove 81, the through hole 82, the clamping slit 83, the flange 84, the feed lifting link 9, the feed hinge shaft 10, the feed lifting hinge shaft 11, the lower shaft 12, the feed lifting eccentric crank 13, the connecting crank 14, the bar groove 141, the rotation shaft 15, the bottom plate 16, the receiving groove 161, the eccentric sleeve 17, the opening slit 171, the feed eccentric crank 18, the feed swinging assembly 19, the stopper 20, the slide block 21, etc. are used more herein, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the nature of the invention and should be construed in a manner consistent with their spirit and scope.
Claims (10)
1. The utility model provides a motion of high stand sewing machine pay-off tooth, includes down pay-off axle (1), lifts feed shaft (2), feed carrier (3) and slide bar (4), the left end that lifts feed shaft (2) has linked firmly and has lifted feed crank (5), slide bar (4) set up in stand (6), just slide bar (4) can be for stand (6) slip and back-and-forth swing about, the top of slide bar (4) has linked firmly feed tooth (7), the bottom of slide bar (4) with the middle part of feed carrier (3) articulates mutually, its characterized in that, motion still includes pay-off crank (8) and is rectangular form and lifts feed connecting rod (9), the top of pay-off crank (8) with the left end of lower feed shaft (1) links firmly mutually, the bottom of pay-off crank (8) with the rear end of feed carrier (3) articulates mutually, the top of lifting feed connecting rod (9) with lift feed crank (5) articulates mutually, the bottom of lifting feed connecting rod (9) with the bottom of feed connecting rod (3) has one and dodges into the arc section (41) and is used for the base that the arc is bent section (41) has.
2. The motion device of a feeding tooth of a high stand column sewing machine according to claim 1, wherein the tooth frame (3) is in a strip shape, both ends of the tooth frame (3) are upward and upward, a feeding groove (81) is arranged at the bottom of the feeding crank (8), the rear end of the tooth frame (3) is embedded into the feeding groove (81) and hinged with the feeding crank (8) through a feeding hinge shaft (10), a hinge groove (32) is arranged at the front end of the tooth frame (3), and the bottom of the tooth lifting connecting rod (9) is embedded into the hinge groove (32) and hinged with the tooth frame (3) through a tooth lifting hinge shaft (11).
3. The motion device of the feeding tooth of the high stand column sewing machine according to claim 1, wherein the tooth frame (3) is provided with an avoidance groove (31) for avoiding the bending section (41), and the avoidance groove (31) is arranged along the front-back direction of the sewing machine.
4. A movement device of a feed dog of a high stand column sewing machine according to claim 1, 2 or 3, characterized in that the curved section (41) is arranged protruding towards the feed crank (8), the opening of the curved section (41) being directed towards the feed dog link (9).
5. A movement device of a feed dog of a high stand column sewing machine according to claim 1, 2 or 3, characterized in that the height of the feed dog connecting rod (9) is not smaller than the height of the bending section (41).
6. A motion device of a feeding tooth of a high stand column sewing machine according to claim 1, 2 or 3, characterized in that the motion device further comprises a lower shaft (12), a lifting eccentric crank (13) fixedly connected to the lower shaft (12) and a connecting crank (14) fixedly connected to the right end of the lifting shaft (2), the lower shaft (12) is located between the lower feeding shaft (1) and the lifting shaft (2), an arc-shaped strip-shaped groove (141) is formed in the outer end of the connecting crank (14), a rotating shaft (15) is hinged to the outer end of the lifting eccentric crank (13), the rotating shaft (15) penetrates through the strip-shaped groove (141) and enables the lifting eccentric crank (13) to be hinged to the connecting crank (14) through nut locking, and the lower shaft (12) is connected with the lifting eccentric crank (13), the connecting crank (14), the lifting shaft (2), the lifting connecting rod (5), the lifting connecting rod (9), the lifting rod (3) and the lifting rod (4) to drive the feeding rod (7) to move.
7. The motion device of the feeding tooth of the high stand column sewing machine according to claim 6, wherein the sewing machine further comprises a bottom plate (16), a containing groove (161) is formed in the edge of the middle of the bottom plate (16), and the outer ends of the connecting crank (14) and the lifting tooth eccentric crank (13) are both located in the containing groove (161).
8. A motion device of a feeding tooth of a high stand column sewing machine according to claim 1, 2 or 3, characterized in that, the left end of the lower feeding shaft (1) is sleeved with an eccentric shaft sleeve (17), an opening slit (171) penetrating along the axial direction of the eccentric shaft sleeve (17) is arranged in the eccentric shaft sleeve (17), a through hole (82) for the left end of the lower feeding shaft (1) to penetrate is arranged at the top of the feeding crank (8), a clamping slit (83) axially arranged along the through hole (82) and communicated with the through hole (82) is arranged at the top of the feeding crank (8), convex edges (84) protruding outwards are arranged at the upper side and the lower side of the clamping slit (83), the two convex edges (84) are locked by bolts, and the eccentric shaft sleeve (17) is fixedly arranged in the through hole (82) in a penetrating way.
9. The motion device of a feeding tooth of a high stand column sewing machine according to claim 6, further comprising a feeding eccentric crank (18) fixedly connected to the lower shaft (12) and a feeding swing assembly (19) arranged at the middle or right end of the lower feeding shaft (1), wherein the outer end of the feeding eccentric crank (18) is hinged with the feeding swing assembly (19), and the lower shaft (12) can drive the feeding tooth (7) to move back and forth through the feeding eccentric crank (18), the feeding swing assembly (19), the lower feeding shaft (1), the feeding crank (8), the tooth frame (3) and the sliding rod (4).
10. The motion device of a feeding tooth of a high stand column sewing machine according to claim 1, 2 or 3, wherein the stand column (6) is provided with a mounting groove (61), the width of the mounting groove (61) is larger than that of the sliding rod (4), the sliding rod (4) is embedded in the mounting groove (61), the top of the stand column (6) is fixedly connected with a limiting piece (20), the top of the sliding rod (4) is abutted against the bottom of the mounting groove (61) by the limiting piece (20), the bottom of the mounting groove (61) is provided with a sliding groove (62) arranged along the vertical direction, the sliding rod (4) is hinged with a cuboid sliding block (21), the sliding block (21) is embedded in the sliding groove (62), and the sliding block (21) can slide up and down along the sliding groove (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202511985046.8A CN121407316B (en) | 2025-12-26 | 2025-12-26 | Motion device of feeding tooth of high stand column sewing machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202511985046.8A CN121407316B (en) | 2025-12-26 | 2025-12-26 | Motion device of feeding tooth of high stand column sewing machine |
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| CN121407316A true CN121407316A (en) | 2026-01-27 |
| CN121407316B CN121407316B (en) | 2026-04-03 |
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| CN214736542U (en) * | 2021-02-09 | 2021-11-16 | 安庆富菱机械科技有限公司 | Hook needle feeding transmission structure of high-head sewing machine |
| CN118516811A (en) * | 2023-02-17 | 2024-08-20 | 杰克科技股份有限公司 | Differential structure and sewing machine |
| CN222975428U (en) * | 2024-09-09 | 2025-06-13 | 台州申岛缝制设备有限公司 | Feeding mechanism of sewing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001347087A (en) * | 2000-06-09 | 2001-12-18 | Suzuki Seisakusho:Kk | Sewing device for retracting feed dog |
| CN213417242U (en) * | 2020-09-30 | 2021-06-11 | 标准缝纫机菀坪机械有限公司 | Sewing machine needle distance control mechanism |
| CN214736542U (en) * | 2021-02-09 | 2021-11-16 | 安庆富菱机械科技有限公司 | Hook needle feeding transmission structure of high-head sewing machine |
| CN118516811A (en) * | 2023-02-17 | 2024-08-20 | 杰克科技股份有限公司 | Differential structure and sewing machine |
| CN222975428U (en) * | 2024-09-09 | 2025-06-13 | 台州申岛缝制设备有限公司 | Feeding mechanism of sewing machine |
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| CN121407316B (en) | 2026-04-03 |
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