CN216838509U

CN216838509U - High column type sewing machine

Info

Publication number: CN216838509U
Application number: CN202220429260.0U
Authority: CN
Inventors: 黄好雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-06-28
Anticipated expiration: 2032-02-28

Abstract

The utility model relates to the technical field of sewing machines, in particular to a high-column type sewing machine, which comprises a frame, a machine head, a column type seat, a driving shaft and a swinging shaft, wherein the machine head, the column type seat, the driving shaft and the swinging shaft are arranged on the frame; the needle bending mechanism comprises a needle hooking piece, a needle hooking shaft, a needle hooking seat, a driving swing arm, a connecting rod assembly and a first limiting shaft; the needle hooking shaft is installed on the cylindrical base and can move axially relative to the cylindrical base, the needle hooking base is fixedly installed on the needle hooking shaft, the needle hooking piece is installed on the needle hooking base, the driving swing arm is provided with a fixed end and a driving end, the driving swing arm is fixedly installed on the needle hooking shaft through the fixed end, the driving end of the driving swing arm and one end of the connecting rod assembly are connected through a first limiting shaft, and the other end of the connecting rod assembly is in transmission connection with the driving shaft. The needle bending mechanism and the needle swinging mechanism are redesigned and distributed in the column type seat, and the two mechanisms are driven by a driving shaft and a swinging shaft which are arranged on the seat, so that the two mechanisms are in linkage and matched operation, and the sewing effect is realized.

Description

High-column type sewing machine

Technical Field

The utility model belongs to the technical field of the sewing machine technique and specifically relates to indicate a high post type sewing machine.

Background

A sewing machine is a machine that uses one or more sewing threads to form one or more stitches in a material to be sewn, thereby interweaving or stitching one or more layers of material. The sewing machine can sew fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather and the like, and the sewed stitches are neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient.

Currently, a multi-needle flat type sewing machine and a multi-cylinder type sewing machine for sewing a plurality of parallel stitches are generally used in the market, however, since both the multi-needle flat type sewing machine and the multi-cylinder type sewing machine are not suitable for sewing a sewing object having a curved surface in the sewing appearance, such as: an arc-shaped vamp.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a high column type sewing machine, through the very big sewing thing that has made things convenient for the sewing to have the arc curved surface of design of column type seat.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a high-column type sewing machine comprises a machine base, a machine head, a column type seat, a driving shaft and a swinging shaft, wherein the machine head, the column type seat, the driving shaft and the swinging shaft are arranged on the machine base;

the curved needle mechanism comprises a needle hooking piece, a needle hooking shaft, a needle hooking seat, a driving swing arm, a connecting rod assembly and a first limiting shaft; the needle hooking device comprises a needle hooking shaft, a needle hooking piece, a driving swing arm, a connecting rod assembly and a connecting rod assembly, wherein the needle hooking shaft is arranged on a cylindrical seat and can axially move relative to the cylindrical seat;

the needle swinging mechanism comprises a driving fork, a second limiting shaft and a linkage rod; the second limiting shaft is arranged on the columnar seat and penetrates the middle of the driving fork, the upper end of the driving fork is connected with the crochet hook shaft, the lower end of the driving fork is connected with the linkage rod, and the linkage rod is in transmission connection with the swinging shaft; when the swinging shaft swings along the circumferential direction, the needle swinging mechanism is driven to enable the driving fork to push the needle hooking shaft to reciprocate along the axial direction of the needle hooking shaft.

Preferably, the connecting rod assembly comprises a driving connecting rod, a crochet hook lever, a third limiting shaft and a crochet hook driving rod; the third limiting shaft is fixedly mounted on the base, the crochet hook lever is mounted on the third limiting shaft and can rotate relative to the third limiting shaft, one end of the crochet hook lever is connected with the driving connecting rod, the other end of the crochet hook lever is connected with the crochet hook driving rod, the other end of the driving connecting rod is connected with the driving end of the driving swing arm through the first limiting shaft, and the other end of the crochet hook driving rod is in transmission connection with the driving shaft.

Preferably, the end face of the driving shaft is provided with an eccentric column; the crochet hook driving rod is provided with a through hole for the penetration of the eccentric column.

Preferably, one end of the driving connecting rod, which corresponds to the first limiting shaft, is provided with a first accommodating hole, a ball head piece is arranged in the first accommodating hole, the ball head piece can rotate relative to the first accommodating hole, and the first limiting shaft is connected to the ball head piece in a penetrating manner;

the drive connecting rod is provided with a second containing hole corresponding to one end of the hook needle lever, a ball head screw is installed in the second containing hole, the ball head end of the ball head screw is located in the second containing hole and can rotate relative to the second containing hole, and the screw rod end of the ball head screw is in threaded connection with the hook needle lever.

Preferably, the crochet hook lever comprises a cylinder part in cross connection with the third limiting shaft and two lever parts extending out of the cylinder part, the two lever parts are arranged in a staggered mode, one lever part is connected with the driving connecting rod, and the other lever part is connected with the crochet hook driving rod.

Preferably, the end part of the crochet hook shaft is provided with a nail cap; the hook needle shaft is sleeved with a retaining ring, and the retaining ring is positioned between the hook needle base and the nail cap and is spaced from the nail cap;

the driving fork is provided with a first fork opening groove used for containing the crochet hook shaft, and the first fork opening groove is clamped on the crochet hook shaft part between the retainer ring and the nail cap.

Preferably, the high-column type sewing machine further comprises a feeding mechanism; the feeding mechanism comprises a feeding tooth, a fork moving part, a feeding driving rod and a first eccentric wheel; the feeding driving rod is arranged on the forking piece, the upper end of the feeding driving rod extends to the lower part of the upper top surface of the columnar seat, and the feeding teeth are arranged at the upper end of the feeding driving rod; and the upper top surface of the columnar seat is provided with a long hole for the feeding tooth to extend out.

Preferably, the high-column type sewing machine further comprises a swing driving assembly, and the driving shaft is in transmission connection with the swing shaft through the swing driving assembly; the handpiece is provided with a power element for driving the driving shaft to rotate.

Preferably, the swing drive assembly comprises a second eccentric and a swing drive; the second eccentric wheel is sleeved on the driving shaft, the swinging driving piece is provided with a containing hole used for containing the second eccentric wheel, and one end of the swinging driving piece, which is far away from the containing hole, is in transmission connection with the swinging shaft.

Preferably, the second eccentric wheel is an eccentric cam with adjustable eccentricity, also called a needle pitch length adjuster.

The beneficial effects of the utility model reside in that:

the utility model provides a high column type sewing machine, which has enough moving space for sewing materials with arc curved surfaces through the design of a column type seat, thereby greatly facilitating the sewing operation; meanwhile, the feeding mechanism, the needle bending mechanism and the needle swinging mechanism are redesigned and distributed in the column-shaped seat, and the three mechanisms are driven by a driving shaft and a swinging shaft which are arranged on the seat, so that the three mechanisms are in linkage and cooperation operation, and the sewing effect is realized.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of the three-dimensional structure of the present invention after the machine base and the machine head are hidden (the arrow path in the figure is the motion path of the feeding teeth).

Fig. 3 is a schematic view of the three-dimensional structure of the middle feeding mechanism, the needle bending mechanism and the needle swinging mechanism of the present invention.

Fig. 4 is an exploded view of the three-dimensional structure of the middle connecting rod assembly, the feeding mechanism and the needle swinging mechanism of the present invention.

Fig. 5 is a schematic view of the three-dimensional structure of the middle bearded needle lever of the present invention.

Fig. 6 is an exploded schematic view of the three-dimensional structure of the feeding mechanism and the needle swinging mechanism of the present invention.

Fig. 7 is a schematic perspective view of the middle needle hooking base and the needle hooking member of the present invention (the arrow direction in the figure is the swing direction of the needle hooking base and the needle hooking member).

Detailed Description

In order to facilitate the understanding of those skilled in the art, the present invention will be further described with reference to the following examples, which are not intended to limit the scope of the present invention.

As shown in fig. 1 to 7, a high column type sewing machine comprises a machine base 1, a machine head 2, a column type seat 3, a driving shaft 7 and a swinging shaft 8, wherein the machine head 2, the column type seat 3, the driving shaft 7 and the swinging shaft 8 are arranged on the machine base 1, and a looper mechanism 5 and a swinging needle mechanism 6 are arranged in the column type seat 3;

the needle bending mechanism 5 comprises a needle hooking piece 51, a needle hooking shaft 52, a needle hooking base 53, a driving swing arm 53a, a connecting rod assembly and a first limiting shaft; the needle hooking shaft 52 is installed on the cylindrical seat 3 and can axially move relative to the cylindrical seat 3, the needle hooking seat 53 is fixedly installed on the needle hooking shaft 52, the needle hooking piece 51 is installed on the needle hooking seat 53, the driving swing arm 53a is provided with a fixed end and a driving end, the driving swing arm 53a is fixedly installed on the needle hooking shaft 52 through the fixed end, the driving end of the driving swing arm 53a is connected with one end of the connecting rod assembly through the first limiting shaft, and the other end of the connecting rod assembly is in transmission connection with the driving shaft 7;

the needle swinging mechanism 6 comprises a driving fork 61, a second limit shaft 62 and a linkage rod 63; the second limiting shaft 62 is installed on the columnar seat 3 and is penetrated and connected to the middle of the driving fork 61, the upper end of the driving fork 61 is connected with the crochet hook shaft 52, the lower end of the driving fork 61 is connected with the linkage rod 63, and the linkage rod 63 is in transmission connection with the swinging shaft 8.

The handpiece 2 is provided with a power element for driving the driving shaft 7 to rotate.

The high-column sewing machine of this embodiment the needle bar seat that vertically aligns with columnar seat 3 is still installed to aircraft nose 2 for accomplish the sewing operation with 3 top cooperation on columnar seat. During sewing operation, a power element arranged on the machine head 2 drives the driving shaft 7 to rotate through a belt and the belt sleeved on the driving shaft 7, and the power element is preferably a motor; when the driving shaft 7 rotates, the swinging shaft 8 is driven to swing, and the driving shaft 7 and the swinging shaft 8 are started to drive the needle bending mechanism 5 and the needle swinging mechanism 6 to perform linkage operation simultaneously;

when the needle bending mechanism 5 acts, the connecting rod assembly drives the needle hooking base 53 and the needle hooking shaft 52 to swing together along the circumferential direction of the needle hooking shaft 52, so that the needle hooking piece 51 arranged on the needle hooking base 53 performs hooking and swinging;

when the needle swinging mechanism 6 acts, the driving fork 61 pushes the needle hooking shaft 52 to reciprocate along the axial direction of the needle hooking shaft, and when the needle hooking shaft 52 reciprocates, the needle hooking base 53 and the needle hooking piece 51 are driven to move, namely, the needle hooking piece 51 also transversely reciprocates when swinging; when the crochet hook shaft 52 reciprocates and moves transversely, the crochet hook seat 53 reciprocates and moves transversely together with the connecting end of the connecting rod assembly, and the crochet hook seat 53 can move transversely and keeps vertical power connection with the connecting rod assembly through the design that the crochet hook seat 53 is connected with the connecting rod assembly through a first limiting shaft (shown in the drawing).

When the needle swinging mechanism 6 acts, the swinging shaft 8 drives the linkage rod 63 to push the lower end of the driving fork 61, so that the driving fork 61 swings along the second limiting shaft 62, and the upper end of the driving fork 61 pushes the needle hooking shaft 52.

In this embodiment, the connecting rod assembly includes a driving connecting rod 54, a crochet hook lever 55, a third limiting shaft 56 and a crochet hook driving rod 57; the third limiting shaft 56 is fixedly mounted on the base 1, the crochet hook lever 55 is mounted on the third limiting shaft 56 and can rotate relative to the third limiting shaft 56, one end of the crochet hook lever 55 is connected with the driving connecting rod 54, the other end of the crochet hook lever 55 is connected with the crochet hook driving rod 57, the other end of the driving connecting rod 54 is connected with the driving end of the driving swing arm 53a through the first limiting shaft, and the other end of the crochet hook driving rod 57 is in transmission connection with the driving shaft 7.

The driving shaft 7 rotates to drive the connecting end of the crochet hook driving rod 57 to rotate along the circumferential direction thereof, so as to drive the crochet hook lever 55 to swing along the third limiting shaft 56, the crochet hook lever 55 drives the driving connecting rod 54 to move up and down, and the driving connecting rod 54 drives the crochet hook base 53 and the crochet hook shaft 52 to swing along the circumferential direction of the crochet hook shaft 52 through the driving swing arm 53 a.

In this embodiment, the end face of the driving shaft 7 is provided with an eccentric column 71, and the position of the eccentric column 71 is close to the circumferential edge of the end face of the driving shaft 7; the crochet hook driving rod 57 is provided with a through hole for the penetration of the eccentric column 71. The eccentric column 71 is connected with one end of the crochet hook driving rod 57, so that the connecting end of the crochet hook driving rod 57 rotates along the circumferential direction when the driving shaft 7 rotates. The driving design of the eccentric column 71 is adopted, and the structure is simple and easy to realize power transmission.

In this embodiment, a first accommodating hole is formed in one end of the driving connecting rod 54 corresponding to the first limiting shaft, a ball head piece is mounted in the first accommodating hole, the ball head piece can rotate relative to the first accommodating hole, and the first limiting shaft is connected to the ball head piece in a penetrating manner;

a second accommodating hole is formed in one end, corresponding to the hook needle lever 55, of the driving connecting rod 54, a ball head screw is installed in the second accommodating hole, the ball head end of the ball head screw is located in the second accommodating hole and can rotate relative to the second accommodating hole, and the screw rod end of the ball head screw is in threaded connection with the hook needle lever 55.

The upper and lower ends of the driving link 54 are movably connected to allow the upper end of the driving link 54 to move laterally together with the needle hooking base 53. The movable connection relation is realized while the connection is reliable by adopting the design of the ball head piece and the ball head screw.

In this embodiment, the needle lever 55 includes a column 58 passing through the third limiting shaft 56 and two lever portions 59 extending from the column 58, the two lever portions 59 are disposed in a staggered manner, one of the lever portions 59 is connected to the driving link 54, and the other lever portion 59 is connected to the needle driving rod 57. Two lever portions 59 extend from the circumferential side of the column portion 58 and are connected to the driving link 54 and the latch driving lever 57, and the two lever portions 59 are staggered at a certain angle to drive the driving link 54 to move up and down when swinging circumferentially. The bearded needle lever 55 is designed in an integrated mode, and is high in strength.

In this embodiment, the end of the hook shaft 52 is provided with a nail cap 50; the needle hooking shaft 52 is sleeved with a retaining ring 5a, and the retaining ring 5a is positioned between the needle hooking base 53 and the nail cap 50 and is spaced from the nail cap 50;

the driving fork 61 is provided with a first fork groove 64 for accommodating the crochet hook shaft 52, and the first fork groove 64 is clamped on the crochet hook shaft 52 part between the retaining ring 5a and the nail cap 50.

When the driving fork 61 pushes the crochet hook shaft 52 to move backwards, the driving fork 61 pushes the nail cap 50 to drive the crochet hook shaft 52 to move transversely, and when the crochet hook shaft is reset, the driving fork 61 pushes the retainer ring 5a to enable the crochet hook shaft 52 to move backwards and reset. The needle hooking shaft 52 can adopt a screw structure, and the first fork mouth groove 64 can be limited by sleeving the retaining ring 5a with the nail cap 50, so that the left-right movement is completed, and the structure is reliable and simple.

In this embodiment, the high-column type sewing machine further includes a feeding mechanism 4; the feeding mechanism 4 comprises a feeding tooth 41, a forking piece 42, a feeding driving rod 43 and a first eccentric wheel 44; wherein the forking piece 42 is provided with a second fork groove 45, the first eccentric wheel 44 is sleeved on the driving shaft 7 and is positioned in the second fork groove 45, one end of the forking piece 42, which is far away from the second fork groove 45, is in transmission connection with the swinging shaft 8, the feeding driving rod 43 is installed on the forking piece 42, the upper end of the feeding driving rod 43 extends to the lower part of the upper top surface of the columnar seat 3, and the feeding tooth 41 is installed at the upper end of the feeding driving rod 43; the upper top surface of the cylindrical seat 3 is provided with a long hole for the feeding tooth 41 to extend out.

The driving shaft 7 rotates to drive the first eccentric wheel 44 to rotate, the first eccentric wheel 44 rotates in the second notch groove 45 to push against the inner wall of the second notch groove 45, so that the fork moving piece 42 floats up and down and drives the feeding driving rod 43 to move up and down, meanwhile, one end of the fork moving piece 42 is in transmission connection with the swinging shaft 8, the swinging shaft 8 pushes the fork moving piece 42 to move transversely when swinging circumferentially, and the first eccentric wheel 44 at the moment moves relatively in the second notch groove 45, namely, the feeding driving rod 43 moves transversely and vertically simultaneously, so that the feeding teeth 41 move back and forth and up and down and move back and forth in the long holes simultaneously, namely, the feeding teeth 41 reciprocate inside and outside the columnar seat 3 to push a sewing object above the columnar seat to move.

In this embodiment, the high-column type sewing machine further comprises a swing driving assembly 9, and the driving shaft 7 is in transmission connection with the swing shaft 8 through the swing driving assembly 9;

the swing driving assembly 9 comprises a second eccentric 91 and a swing driving member 92; the second eccentric wheel 91 is sleeved on the driving shaft 7, the swinging driving member 92 is provided with a third containing hole 93 for containing the second eccentric wheel 91, and one end of the swinging driving member 92 far away from the third containing hole 93 is in transmission connection with the swinging shaft 8. The driving shaft 7 drives the second eccentric wheel 91 to rotate, the second eccentric wheel 91 rotates in the third containing hole 93 to push the inner wall of the third containing hole 93 to enable the swinging driving member 92 to transversely reciprocate, and then the swinging shaft 8 connected with one end of the swinging driving member 92 swings in the reciprocating circumferential direction.

As shown in fig. 7, according to the internal structure design of the present column type seat 3 and the stitch requirement, the direction of the hook member 51 is the circumferential oscillation direction of the hook shaft 52. The driving link 54 moves up and down and drives the crochet hook member 51 to do reciprocating crochet hook motion from left to right through the driving swing arm 53a and the crochet hook seat 53.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

The above-mentioned embodiments only express a plurality of embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. High post type sewing machine, including frame (1) to and install aircraft nose (2), post type seat (3), driving shaft (7) and oscillating axle (8) at frame (1), install looper mechanism (5) and pendulum needle mechanism (6), its characterized in that in post type seat (3):

the needle bending mechanism (5) comprises a needle hooking piece (51), a needle hooking shaft (52), a needle hooking seat (53), a driving swing arm (53a), a connecting rod assembly and a first limiting shaft; the needle hooking mechanism comprises a cylindrical seat (3), a needle hooking shaft (52), a needle hooking seat (53), a needle hooking piece (51), a driving swing arm (53a), a fixed end and a driving end, wherein the needle hooking shaft (52) is installed on the cylindrical seat (3) and can axially move relative to the cylindrical seat (3), the needle hooking seat (53) is fixedly installed on the needle hooking shaft (52), the needle hooking piece (51) is installed on the needle hooking seat (53), the driving swing arm (53a) is fixedly installed on the needle hooking shaft (52) through the fixed end, the driving end of the driving swing arm (53a) is connected with one end of a connecting rod assembly through a first limiting shaft, and the other end of the connecting rod assembly is in transmission connection with a driving shaft (7);

the needle swinging mechanism (6) comprises a driving fork (61), a second limiting shaft (62) and a linkage rod (63); the second limiting shaft (62) is installed on the columnar seat (3) and penetrates the middle of the driving fork (61), the upper end of the driving fork (61) is connected with the crochet hook shaft (52), the lower end of the driving fork (61) is connected with the linkage rod (63), and the linkage rod (63) is in transmission connection with the swinging shaft (8).

2. The high column type sewing machine according to claim 1, characterized in that: the connecting rod assembly comprises a driving connecting rod (54), a crochet hook lever (55), a third limiting shaft (56) and a crochet hook driving rod (57); wherein spacing axle of third (56) fixed mounting is in frame (1), crochet hook lever (55) are installed in spacing axle of third (56) and can rotate spacing axle of third (56) relatively, drive connecting rod (54) are connected to the one end of crochet hook lever (55), crochet hook actuating lever (57) is connected to the other end of crochet hook lever (55), the other end of drive connecting rod (54) is connected with the drive end of drive swing arm (53a) through first spacing axle, the other end and driving shaft (7) transmission of crochet hook actuating lever (57) are connected.

3. The high column type sewing machine according to claim 2, characterized in that: an eccentric column (71) is arranged on the end face of the driving shaft (7); the crochet hook driving rod (57) is provided with a through hole for the penetration of the eccentric column (71).

4. The high column type sewing machine according to claim 2, characterized in that: a first accommodating hole is formed in one end, corresponding to the first limiting shaft, of the driving connecting rod (54), a ball head piece is installed in the first accommodating hole and can rotate relative to the first accommodating hole, and the first limiting shaft is connected to the ball head piece in a penetrating mode;

and a second accommodating hole is formed in one end, corresponding to the crochet hook lever (55), of the driving connecting rod (54), a ball head screw is installed in the second accommodating hole, the ball head end of the ball head screw is located in the second accommodating hole and can rotate relative to the second accommodating hole, and the screw rod end of the ball head screw is in threaded connection with the crochet hook lever (55).

5. The high column type sewing machine according to claim 2, characterized in that: the crochet hook lever (55) comprises a column part (58) connected with the third limiting shaft (56) in a penetrating mode and two lever parts (59) extending out of the column part (58), the two lever parts (59) are arranged in a staggered mode, one lever part (59) is connected with the driving connecting rod (54), and the other lever part (59) is connected with the crochet hook driving rod (57).

6. The high column type sewing machine according to claim 1, characterized in that: a nail cap (50) is arranged at the end part of the crochet hook shaft (52); the needle hooking shaft (52) is sleeved with a retaining ring (5a), and the retaining ring (5a) is positioned between the needle hooking base (53) and the nail cap (50) and is spaced from the nail cap (50);

the driving fork (61) is provided with a first fork opening groove (64) used for containing the crochet hook shaft (52), and the first fork opening groove (64) is clamped on the crochet hook shaft (52) between the retainer ring (5a) and the nail cap (50).

7. The high column type sewing machine according to claim 1, characterized in that: the high-column type sewing machine also comprises a feeding mechanism (4); the feeding mechanism (4) comprises a feeding tooth (41), a forking piece (42), a feeding driving rod (43) and a first eccentric wheel (44); wherein the fork member (42) is provided with a second fork groove (45), the first eccentric wheel (44) is sleeved on the driving shaft (7) and positioned in the second fork groove (45), one end of the fork member (42) far away from the second fork groove (45) is in transmission connection with the swinging shaft (8), the feeding driving rod (43) is installed on the fork member (42), the upper end of the feeding driving rod (43) extends to the lower part of the upper top surface of the columnar seat (3), and the feeding teeth (41) are installed at the upper end of the feeding driving rod (43); the upper top surface of the cylindrical seat (3) is provided with a long hole for the feeding tooth (41) to extend out.

8. The high column type sewing machine according to claim 1, characterized in that: the high-column type sewing machine further comprises a swing driving assembly (9), and the driving shaft (7) is in transmission connection with the swing shaft (8) through the swing driving assembly (9); the machine head (2) is provided with a power element for driving the driving shaft (7) to rotate.

9. The high column type sewing machine according to claim 8, characterized in that: the oscillating drive assembly (9) comprises a second eccentric (91) and an oscillating drive member (92); the second eccentric wheel (91) is sleeved on the driving shaft (7), the swinging driving piece (92) is provided with a third containing hole (93) used for containing the second eccentric wheel (91), and one end, far away from the third containing hole (93), of the swinging driving piece (92) is in transmission connection with the swinging shaft (8).

10. The high column type sewing machine according to claim 9, characterized in that: the second eccentric wheel (91) is an eccentric cam with adjustable eccentricity.