CN219824553U

CN219824553U - Single-wire double-pry blind stitch machine

Info

Publication number: CN219824553U
Application number: CN202321366818.6U
Authority: CN
Inventors: 邹绍峰
Original assignee: Wenzhou Juteng Technology Co ltd
Current assignee: Wenzhou Juteng Technology Co ltd
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2023-10-13
Anticipated expiration: 2033-05-31

Abstract

The utility model relates to a single-wire double-pry blind stitch machine. Mainly solves the technical problems that when the existing sewing machine is used for sewing, single-thread linear sewing is adopted, and a sewing mark is left after the sewing machine passes through the bottom, so that the appearance is influenced. Including frame, material conveying mechanism, crochet hook mechanism, still include supporting legs and two liftout mechanisms, the supporting legs includes first supporting legs and second supporting legs, two liftout mechanisms include axis of rotation, rotation axle sleeve, first rotating block, second rotating block, first liftout board and second liftout board, the rotation axle sleeve is located outside the axis of rotation, first rotating block with the axis of rotation is connected, through axis of rotation and rotation axle sleeve combine first rotating block and the cooperation of second rotating block to realize first liftout board and second liftout board upper and lower alternately switch. The hidden seam machine adopts a single-thread double-prying mode to carry out hidden seams, adopts a double-cloth-top mechanism to form curved seam, does not pass through the bottom and leave marks when the seam thickness part is sewn, and has the advantages of strong action stability, high reliability, attractive appearance of sewn products, good usability and the like.

Description

Single-wire double-pry blind stitch machine

Technical Field

The utility model relates to a sewing machine, in particular to a single-thread double-prying blind stitch machine.

Background

The blind stitching machine is a special sewing machine which can form unobvious stitches on stitching materials. Is specially used for the top of western-style clothes, collar, cuff, hem, village, trouser leg opening, etc. The existing hidden stitch machine mostly adopts a single-thread single-pry mode to realize the sewing due to the limited structure, and the overstock can leave a sewing mark to influence the appearance, so that the usability of the sewing equipment is reduced, and the production benefit is influenced to a certain extent.

Disclosure of Invention

In order to overcome the defects and shortcomings of the background technology, the utility model provides a single-thread double-prying hidden sewing machine, which solves the technical problem that the prior sewing machine adopts single-thread straight line sewing and the bottom is crossed to leave a sewing mark when in sewing, thereby influencing the appearance.

The technical scheme of the utility model is as follows: the utility model provides a two sled blind stitch machines of single line, includes frame, material conveying mechanism, crochet hook mechanism, still includes supporting legs and two liftout mechanisms, the supporting legs is including controlling first supporting legs and the second supporting legs that distribute, be equipped with the clearance between first supporting legs and the second supporting legs, first liftout plate and second liftout plate realize alternately liftout through two liftout mechanisms, two liftout mechanisms include axis of rotation, rotation sleeve, first rotating block, second rotating block, first liftout plate and second liftout plate control distribute in the clearance, the rotation sleeve is located outside the axis of rotation, first rotating block with the axis of rotation is connected, the second rotating block with the axis of rotation sleeve is connected, be equipped with the arc guide way on the second rotating block, be equipped with the slope on the first rotating block, the axis of rotation drives first rotating block and pass through the slope slides the face and constitutes along the rotation guide way down rotate the first liftout plate, and the second lifter down rotates the first rotating block and the second lifter down and the first rotating plate is realized alternately, the second lifter down rotates the first rotating block and the first rotating sleeve is realized.

The rotating shaft and the rotating shaft sleeve are driven to rotate by a cam mechanism, the cam mechanism comprises a power output shaft, a first eccentric wheel, a first cam, a first connecting rod, a first connecting block, a second eccentric wheel, a second cam, a second connecting rod and a second connecting block, the first eccentric wheel is arranged on the power output shaft, the first cam is arranged outside the first eccentric wheel, one end of the first connecting rod is connected with the first cam, the other end of the first connecting rod is hinged with the first connecting block, the first connecting block is fixedly connected with the rotating shaft, the second eccentric wheel is arranged on the power output shaft, the second cam is arranged outside the second eccentric wheel, one end of the second connecting rod is connected with the second cam, the other end of the second connecting rod is hinged with the first connecting block, and the second connecting block is fixedly connected with the rotating shaft sleeve.

Still include with first liftout board spacing complex first adjustment mechanism, first adjustment mechanism includes first fixed block, first stopper, first adjust knob, first pressure cover and first spring, be connected with first adjusting pin on the first fixed block, be equipped with first eccentric shaft on the first adjusting pin, first stopper articulate in on the first eccentric shaft, first adjust knob passes through first screw rod and first fixed block threaded connection, first pressure cover is located between first adjust knob and the first stopper, the lower extreme of spring conflict in on the first fixed block, the upper end conflict in on the first pressure cover.

The first limiting block is provided with a first limiting part which extends outwards and is correspondingly matched with the first ejector plate, the lower end of the first limiting part is provided with a first limiting groove with an opening at the front end, and the first ejector plate is in limiting fit with the first groove.

Still include with second liftout board spacing complex second adjustment mechanism, second adjustment mechanism includes second fixed block, second stopper, second adjust knob, second press cover and second spring, be connected with the second adjusting pin on the second fixed block, be equipped with the second eccentric shaft on the second adjusting pin, the second stopper articulate in on the second eccentric shaft, second adjust knob passes through second screw rod and second fixed block threaded connection, the second press cover is located between second adjust knob and the second stopper, the lower extreme of spring conflict in on the second fixed block, the upper end conflict in on the second press cover.

The second limiting block is provided with a second limiting part which extends outwards and is correspondingly matched with the second ejector plate, the lower end of the second limiting part is provided with a second limiting groove with an opening at the front end, and the second ejector plate is in limiting fit with the second groove.

The rotating mechanism comprises a fixed seat, a rotating arm, a connecting shaft, a shaft sleeve and a mounting arm, wherein the rotating arm is connected with the connecting shaft, the connecting shaft is connected with the mounting arm, the shaft sleeve is arranged outside the connecting shaft and connected to the fixed seat, and the mounting arm is connected with the first supporting leg.

The first material pushing plate is hinged to the first rotating block, the limiting pin shaft and the tension spring fixing piece are located at two ends of the first material pushing plate, the tension spring adjusting piece is in threaded connection with the first rotating block, one end of the tension spring is connected with the tension spring adjusting piece, the other end of the tension spring is connected with the tension spring fixing piece, a clamping hook is arranged on the first rotating block, and the limiting pin shaft is matched with the clamping hook in a clamping position.

The second material ejection plate is connected with the movable rod, the knob is connected to the end portion of the movable rod, and the adjusting spring is sleeved on the movable rod.

The utility model has the following beneficial effects: the hidden seam machine adopts a single-thread double-prying mode to carry out hidden seams, adopts a double-cloth-top mechanism to form curved seam, does not pass through the bottom and leave marks when the seam thickness part is sewn, and has the advantages of strong action stability, high reliability, attractive appearance of sewn products, good usability and the like.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

Fig. 2 is a schematic partial structure of the present embodiment.

Fig. 3 is an enlarged view of the partial structure of fig. 2 in the present embodiment.

Fig. 4 is a schematic diagram of the internal structure of the present embodiment.

Fig. 5 is a schematic structural diagram of the present embodiment.

Fig. 6 is an enlarged view of the structure at a in fig. 5 in the present embodiment.

Fig. 7 is a schematic diagram of the internal structure of the present embodiment.

Fig. 8 is an enlarged view of the structure at B of fig. 7 in the present embodiment.

Fig. 9 is a schematic partial structure of the present embodiment.

Fig. 10 is an enlarged view of the structure at C of fig. 9 in the present embodiment.

Fig. 11 is a schematic structural diagram of the first rotating block in the present embodiment.

Fig. 12 is a schematic structural diagram of the second rotating block in the present embodiment.

Fig. 13 is a schematic structural diagram of the first limiting block in the present embodiment.

Fig. 14 is a schematic structural diagram of the second limiting block in the present embodiment.

Fig. 15 is a schematic structural diagram of a first adjusting pin in this embodiment.

Fig. 16 is a schematic structural view of a second adjusting pin in this embodiment.

Fig. 17 is a schematic view of the internal partial structure of the present embodiment.

In the drawing, a frame 1, a first supporting leg 2, a second supporting leg 3, a gap 4, a rotating shaft 5, a rotating shaft sleeve 6, a first rotating block 7, a second rotating block 8, a first ejector plate 9, a second ejector plate 10, an arc-shaped guide groove 11, an inclined sliding surface 12, a power output shaft 13, a first eccentric wheel 14, a first cam 15, a first connecting rod 16, a first connecting block 17, a second eccentric wheel 18, a second cam 19, a second connecting rod 20, a second connecting block 21, a first fixed block 22, a first limiting block 23, a first adjusting knob 24, a first pressing sleeve 25, a first adjusting pin 26, a first eccentric shaft 27, a first limiting part 28, a first limiting groove 29, a second fixed block 30, a second limiting block 31, a second adjusting knob 32, a second pressing sleeve 33, a second adjusting pin 34, a second eccentric shaft 35, a second limiting part 36, a second limiting groove 37, a fixed seat 38, a rotating arm 39, a connecting shaft 40, 41, a shaft sleeve mounting arm 42, a tension spring adjusting member 43, a tension spring fixing member 45, a tension spring fixing member 46, a hook 48, a movable limiting rod 48 and a movable limiting rod 48 are shown.

Detailed Description

The following is a further explanation of embodiments of the utility model:

as shown in the figure, a single-wire double-prying blind stitch machine comprises a frame 1, a material conveying mechanism, a crochet hook mechanism, further comprising supporting feet and a double-jacking mechanism, wherein the supporting feet comprise a first supporting foot 2 and a second supporting foot 3 which are distributed left and right, a gap 4 is arranged between the first supporting foot 2 and the second supporting foot 3, the double-jacking mechanism comprises a rotating shaft 5, a rotating shaft sleeve 6, a first rotating block 7, a second rotating block 8, a first jacking plate 9 and a second jacking plate 10, the first jacking plate 9 and the second jacking plate 10 are distributed on the left side and the right side of the gap 4, the first jacking plate 9 is connected with the first rotating block 7, the second jacking plate 10 is connected with the second rotating block 8, the rotating shaft sleeve 6 is arranged outside the rotating shaft 5, the first rotating block 7 is connected with the rotating shaft 5, the second rotating block 8 is connected with the rotating shaft sleeve 6, a guide groove 11 is arranged on the second rotating block 8, the first rotating block 11 is arranged on the second rotating block 8, the second rotating block 10 is connected with the second rotating block 5 in a sliding way, the second rotating block 10 is driven by the first rotating block 7 and the second rotating block 10 is connected with the second rotating block 8, and the second rotating block 8 is driven by the second rotating block 8, and the second rotating block 8 is connected with the second rotating block 8, and the second rotating block 8. When the novel automatic feeding device is used, the first rotating block 7 is driven to rotate by the rotating shaft 5 to drive the first ejector plate 9, the second rotating block 8 is driven to rotate by the rotating shaft sleeve 6 to drive the second ejector plate 10, as shown in fig. 3, at the moment, the first ejector plate is located at an upward rotating position, the second ejector plate is located at a downward rotating position, materials are placed on the first supporting leg and the second supporting leg, the first ejector plate is lifted up, then a crochet hook blind seam is carried out through a crochet hook mechanism of a sewing machine, then the materials continue to be fed, the first ejector plate rotates to the right and the lower, meanwhile, the second ejector plate rotates to the left and the upper, the crochet hook blind seam is carried out when the second ejector plate rotates to the crochet hook position, and in this way, the first ejector plate and the second ejector plate distributed in the left and right are vertically switched, and the step blind seam is carried out while the feeding of the materials is combined, so that a curved line running mode is realized. According to the scheme, the blind stitching machine adopts a single-thread double-prying mode to carry out blind stitching, adopts a double-cloth-top mechanism to form a curved seam, does not pass through the bottom and leave marks when a seam-crossing thick part is sewn, and has the advantages of being strong in action stability, high in reliability, attractive in appearance of sewn products, good in usability and the like.

In this embodiment, as shown in the drawing, the rotation shaft 5 and the rotation shaft sleeve 6 are driven to rotate by a cam mechanism, the cam mechanism includes a power output shaft 13, a first eccentric wheel 14, a first cam 15, a first connecting rod 16, a first connecting block 17, a second eccentric wheel 18, a second cam 19, a second connecting rod 20 and a second connecting block 21, the first eccentric wheel 14 is disposed on the power output shaft 13, the first cam 15 is disposed outside the first eccentric wheel 14, one end of the first connecting rod 16 is connected with the first cam 15, the other end of the first connecting rod 16 is hinged with the first connecting block 17, the first connecting block 17 is fixedly connected with the rotation shaft 5, the second eccentric wheel 18 is disposed on the power output shaft 13, the second cam 19 is disposed outside the second eccentric wheel 18, one end of the second connecting rod 20 is connected with the second cam 19, the other end of the second connecting rod 20 is hinged with the second connecting block 21, and the second connecting rod 21 is fixedly connected with the rotation shaft sleeve 6. Adopt above-mentioned power take off shaft 13, first eccentric wheel 14, first cam 15, first connecting rod 16, first connecting block 17 and second eccentric wheel 18, second cam 19, the cam structure that second connecting rod 20 and second connecting block 21 constitute drives axis of rotation 5, rotation axle sleeve 6 rotates in order to drive the rotation of first rotating block 7 and second rotating block 8, in order to realize the purpose of switching from top to bottom, it is compact to have an overall structure, rationally, reliable, the action is nimble, switching efficiency is high, effectively improve the production efficiency of sewing.

In this embodiment, as shown in the drawing, the device further comprises a first adjusting mechanism in limit fit with the first ejector plate 9, the first adjusting mechanism comprises a first fixed block 22, a first limiting block 23, a first adjusting knob 24, a first pressing sleeve 25 and a first spring, a first adjusting pin 26 is connected to the first fixed block 22, a first eccentric shaft 27 is arranged on the first adjusting pin 26, the first limiting block 23 is hinged to the first eccentric shaft 27, the first adjusting knob 24 is in threaded connection with the first fixed block 22 through a first screw, the first pressing sleeve 25 is located between the first adjusting knob 24 and the first limiting block 23, the lower end of the first spring is abutted to the first fixed block 22, and the upper end of the first spring is abutted to the first pressing sleeve 25. Through the first fixed block 22, the first limiting block 23, the first adjusting knob 24, the first pressing sleeve 25 and the first adjusting mechanism consisting of the first spring, the first pressing sleeve 25 is positioned between the first adjusting knob 24 and the first limiting block 23, and the first adjusting knob 24 is rotated. Because the lower extreme of first adjust knob 24 is connected with first fixed block 22 through first screw rod, first adjust knob 24 can axial displacement, when moving downwards, when compressing first spring, it rotates about first eccentric shaft to push down first stopper 23 and realizes high regulation to push down, and when first adjust knob 24 rotates and moves upwards, the effect of first spring returns to drive first cover 25 and upwards moves and make and produce certain regulation space between first stopper and the first cover, drive first eccentric shaft 27 rotation through rotating first adjust pin 26, can realize under the condition of first stopper angle regulation, still can carry out the regulation from beginning to end, in order to satisfy the high regulation and the length regulation that first liftout board needs, effectively guarantee regulation reliability and stability.

In this embodiment, as shown in the drawing, the first limiting block 23 is provided with a first limiting portion 28 extending outwards and correspondingly matched with the first ejector plate 9, a first limiting groove 29 with an opening at the front end is provided at the lower end of the first limiting portion 28, and the first ejector plate 9 is in limiting fit with the first limiting groove 29. The first limiting block 23 is provided with the first limiting part 28 which extends, the lower end of the first limiting part 28 is provided with the first limiting groove 29, the first limiting groove 29 can effectively achieve the limiting purpose with the upper end of the first ejector plate 9, and when the first ejector plate 9 rotates, the first limiting groove 29 can rotate along the lower end of the first limiting part 28, so that the device has the advantages of good guiding performance, good limiting effect and the like.

In this embodiment, as shown in the drawing, the second adjusting mechanism is further provided with a second adjusting mechanism in limit fit with the second ejector plate 10, the second adjusting mechanism includes a second fixing block 30, a second limiting block 31, a second adjusting knob 32, a second pressing sleeve 33 and a second spring, the second fixing block 30 is connected with a second adjusting pin 34, the second adjusting pin 34 is provided with a second eccentric shaft 35, the second limiting block 31 is hinged on the second eccentric shaft 35, the second adjusting knob 32 is in threaded connection with the second fixing block 30 through a second screw, the second pressing sleeve 33 is located between the second adjusting knob 32 and the second limiting block 31, the lower end of the second spring is abutted to the second fixing block 30, and the upper end of the second spring is abutted to the second pressing sleeve 33. The second adjusting mechanism is composed of a second fixing block 30, a second limiting block 31, a second adjusting knob 32, a second pressing sleeve 33 and a second spring, wherein the second pressing sleeve is positioned between the second adjusting knob and the second limiting block, and the second adjusting knob is rotated. Because the lower extreme of second adjust knob is connected with second fixed block 22 through the second screw rod, second adjust knob can axial displacement, when moving downwards, when compressing the second spring, the second stopper 23 is pushed down and rotate around the second eccentric shaft and realize high regulation, and when second adjust knob rotates upwards to move, reset under the effect of second spring and drive the second cover that presses upwards to move and make the second stopper and second press and produce the regulation space of two definite between the cover, drive the second eccentric shaft rotation through rotating second adjusting pin axle, can realize under the condition of second stopper angle regulation, still can carry out fore-and-aft adjustment, in order to satisfy the required altitude mixture control of second liftout board and length adjustment, effectively guarantee adjustment reliability and stability.

In this embodiment, as shown in the drawing, the second limiting block 32 is provided with a second limiting portion 36 extending outwards and correspondingly matched with the second ejector plate 10, a second limiting groove 37 with an opening at the front end is provided at the lower end of the second limiting portion 36, and the second ejector plate 10 is in limiting fit with the second limiting groove 37. The second limiting block 32 is provided with the second limiting part 36 which extends, the lower end of the second limiting part 36 is provided with the second limiting groove 37, the second limiting groove can effectively achieve the limiting purpose with the upper end of the second ejector plate, and when the second ejector plate 10 rotates, the second ejector plate can rotate along the second limiting groove 37 at the lower end of the second limiting part 36, and has the advantages of good guiding performance, good limiting effect and the like.

In this embodiment, as shown in the drawing, the device further includes a rotating mechanism connected to the first supporting leg 2, where the rotating mechanism includes a fixed seat 38, a rotating arm 39, a connecting shaft 40, a shaft sleeve 41, and an installation arm 42, where the rotating arm 39 is connected to the connecting shaft 40, the connecting shaft 40 is connected to the installation arm 42, and the shaft sleeve 41 is disposed outside the connecting shaft 40 and connected to the fixed seat 38, and the installation arm 42 is connected to the first supporting leg 2. The rotating mechanism formed by the fixing seat 38, the rotating arm 39, the connecting shaft 40, the shaft sleeve 41 and the mounting arm 42 drives the first supporting leg to rotate to achieve the positioning purpose, the rotating arm 39 rotates around the shaft sleeve 41 through the connecting shaft 40 to drive the mounting arm to rotate so as to achieve the rotation adjustment of the first supporting leg, and the rotating mechanism is reliable and reasonable in action, good in transmission stability and strong in flexibility.

In this embodiment, as shown in the drawing, a first buffer mechanism is disposed between the first ejector plate 9 and the first rotating block 7, the first buffer mechanism includes a tension spring adjusting member 43, a tension spring 44, a tension spring fixing member 45 and a limiting pin 46, the first ejector plate 9 is hinged on the first rotating block 7, the limiting pin 46 and the tension spring fixing member 45 are located at two ends of the first ejector plate 9, the tension spring adjusting member 45 is in threaded connection with the first rotating block 7, one end of the tension spring 44 is connected with the tension spring adjusting member 43, the other end is connected with the tension spring fixing member 45, a hook 47 is disposed on the first rotating block 7, and the limiting pin 46 is in clamping fit with the hook 47. The first ejector plate 9 is connected with the first rotating block 7 through the tension spring adjusting piece 43, the tension spring 44, the tension spring fixing piece 45 and the limiting pin shaft 46, when the first ejector plate 9 ejects materials, the first ejector plate 9 is pressed downwards and rotates around the hinge center, the tension spring is stretched to generate elasticity, the limiting pin shaft 46 on the first ejector plate 9 is separated from the clamping hook 47 on the first rotating block 7 to rotate downwards, the purpose of buffering is achieved, and when the first ejector plate rotates downwards under the driving of the first rotating block, the first ejector plate resets under the action of the tension spring, the limiting pin shaft 46 and the clamping hook 47 are clamped mutually, and the tension spring adjusting piece 45 can adjust the elasticity of the tension spring 44. By adopting the structure, the buffer device has the advantages of reasonable and reliable structure, good buffer effect, high protection, high action flexibility and improved usability.

In this embodiment, as shown in the drawing, a second buffer mechanism is disposed between the second ejector plate 10 and the second rotating block 8, where the second buffer mechanism includes a movable rod 48, a knob 49, and an adjusting spring 50, the movable rod 48 is sleeved in the second rotating block 8, the second ejector plate 10 is connected with the movable rod 48, the knob 49 is connected to an end of the movable rod 9, and the adjusting spring 50 is sleeved on the movable rod 48. Through movable rod 48, knob 49 and adjusting spring 50 for second liftout board 10 can play the purpose of buffering when the roof pressure cloth material, prevent to cause the influence to the material, and the action flexibility is high, thereby improves performance and influences the sewing effect.

The examples should not be construed as limiting the utility model, but any modifications based on the spirit of the utility model should be within the scope of the utility model.

Claims

1. The utility model provides a two sled blind stitch machines of single line, includes frame (1), material conveying mechanism, crochet hook mechanism, its characterized in that: the automatic feeding device is characterized by further comprising supporting feet and a double-ejection mechanism, wherein the supporting feet comprise first supporting feet (2) and second supporting feet (3) which are distributed left and right, a gap (4) is formed between each first supporting foot (2) and each second supporting foot (3), each double-ejection mechanism comprises a rotating shaft (5), a rotating shaft sleeve (6), a first rotating block (7), a second rotating block (8), a first ejection plate (9) and a second ejection plate (10), the first ejection plate (9) and the second ejection plate (10) are distributed on the left side and the right side of the gap (4), the first ejection plate (9) is connected with the first rotating block (7), the second ejection plate (10) is connected with the second rotating block (8), the rotating shaft sleeve (6) is arranged outside the rotating shaft (5), the first rotating block (7) is connected with the rotating shaft (5), the second rotating block (8) is connected with the rotating shaft sleeve (6), the second rotating block (7) is provided with the first rotating block (7) and is provided with an arc-shaped guide groove (11) which is formed by the arc-shaped sliding downwards, and the first rotating block (7) is arranged on the arc-shaped guide groove (11), simultaneously, the rotating shaft sleeve (6) drives the second rotating block (8) to rotate and form a second liftout plate (10) to rotate upwards to jack up materials for sewing, and the first liftout plate (9) and the second liftout plate (10) are switched up and down by combining the rotating shaft (5) with the rotating shaft sleeve (6) and combining the first rotating block (7) with the second rotating block (8).

2. The single-wire double-pry blind stitching machine according to claim 1, wherein: the rotary shaft (5) and the rotary shaft sleeve (6) are driven to rotate through a cam mechanism, the cam mechanism comprises a power output shaft (13), a first eccentric wheel (14), a first cam (15), a first connecting rod (16), a first connecting block (17) and a second eccentric wheel (18), a second cam (19), a second connecting rod (20) and a second connecting block (21), the first eccentric wheel (14) is arranged on the power output shaft (13), the first cam (15) is arranged outside the first eccentric wheel (14), one end of the first connecting rod (16) is connected with the first cam (15), the other end of the first connecting rod (16) is hinged with the first connecting block (17), the first connecting block (17) is fixedly connected with the rotary shaft (5), the second eccentric wheel (18) is arranged on the power output shaft (13), the second cam (19) is arranged outside the second eccentric wheel (18), one end of the second connecting rod (20) is connected with the second connecting rod (19) in a hinged manner with the second connecting block (21), and the other end of the second connecting rod (20) is fixedly connected with the second connecting block (21).

3. A single-wire double-pry blind stitching machine according to claim 1 or 2, wherein: still include with first liftout board (9) spacing complex first adjustment mechanism, first adjustment mechanism includes first fixed block (22), first stopper (23), first adjust knob (24), first cover (25) and first spring are pressed, be connected with first adjusting pin axle (26) on first fixed block (22), be equipped with first eccentric shaft (27) on first adjusting pin axle (26), first stopper (23) articulate in on first eccentric shaft (27), first adjust knob (24) through first screw rod with first fixed block (22) threaded connection, first cover (25) are located between first adjust knob (24) and first stopper (23), the lower extreme of first spring conflict in on first fixed block (22), the upper end conflict in on first cover (25) are pressed.

4. A single-wire double-pry blind stitching machine according to claim 3, wherein: the first limiting block (23) is provided with a first limiting part (28) which extends outwards and is correspondingly matched with the first ejector plate (9), the lower end of the first limiting part (28) is provided with a first limiting groove (29) with an opening at the front end, and the first ejector plate (9) is in limiting fit with the first limiting groove (29).

5. A single-wire double-pry blind stitching machine according to claim 1 or 2, wherein: the automatic feeding device is characterized by further comprising a second adjusting mechanism in limiting fit with the second ejection plate (10), the second adjusting mechanism comprises a second fixing block (30), a second limiting block (31), a second adjusting knob (32), a second pressing sleeve (33) and a second spring, a second adjusting pin shaft (34) is connected to the second fixing block (30), a second eccentric shaft (35) is arranged on the second adjusting pin shaft (34), the second limiting block (31) is hinged to the second eccentric shaft (35), the second adjusting knob (32) is in threaded connection with the second fixing block (30) through a second screw rod, the second pressing sleeve (33) is located between the second adjusting knob (32) and the second limiting block (31), the lower end of the second spring is abutted to the second fixing block (30), and the upper end of the second spring is abutted to the second pressing sleeve (33).

6. The single-wire double-pry blind stitching machine according to claim 5, wherein: the second limiting block (31) is provided with a second limiting part (36) which extends outwards and is correspondingly matched with the second ejector plate (10), the lower end of the second limiting part (36) is provided with a second limiting groove (37) with an opening at the front end, and the second ejector plate (10) is in limiting fit with the second limiting groove (37).

7. A single-wire double-pry blind stitching machine according to claim 1 or 2, wherein: still include with the slewing mechanism that first supporting legs (2) are connected, slewing mechanism includes fixing base (38), rotating arm (39), connecting axle (40), axle sleeve (41) and installation arm (42), rotating arm (39) are connected with connecting axle (40), connecting axle (40) are connected with installation arm (42), axle sleeve (41) are located outside connecting axle (40) and connect in on fixing base (38), installation arm (42) with first supporting legs (2) are connected.

8. A single-wire double-pry blind stitching machine according to claim 1 or 2, wherein: the novel automatic feeding device is characterized in that a first buffer mechanism is arranged between the first feeding plate (9) and the first rotating block (7), the first buffer mechanism comprises a tension spring adjusting piece (43), a tension spring (44), a tension spring fixing piece (45) and a limiting pin shaft (46), the first feeding plate (9) is hinged to the first rotating block (7), the limiting pin shaft (46) and the tension spring fixing piece (45) are located at two ends of the first feeding plate (9), the tension spring adjusting piece (43) is in threaded connection with the first rotating block (7), one end of the tension spring (44) is connected with the tension spring adjusting piece (43), the other end of the tension spring adjusting piece is connected with the tension spring fixing piece (45), a clamping hook (47) is arranged on the first rotating block (7), and the limiting pin shaft (46) is in clamping fit with the clamping hook (47).

9. A single-wire double-pry blind stitching machine according to claim 1 or 2, wherein: the second material ejection plate (10) and the second rotating block (8) are provided with a second buffer mechanism, the second buffer mechanism comprises a movable rod (48), a knob (49) and an adjusting spring (50), the movable rod (48) is sleeved in the second rotating block (8), the second material ejection plate (10) is connected with the movable rod (48), the knob (49) is connected to the end part of the movable rod (48), and the adjusting spring (50) is sleeved on the movable rod (48).