Scissor device for hosiery machine

Abstract

The scissors device for the hosiery machine comprises a scissors seat, an upper scissors blade and a lower scissors blade are installed on the scissors seat, the upper scissors blade and the lower scissors blade intersect with each other to form a shearing included angle, the upper scissors blade and the lower scissors blade linearly move along the shearing included angle, and the scissors seat is connected with sewing equipment. The upper shear blade and the lower shear blade which linearly move along the shearing included angle are used for shearing a sewing thread sewn by sewing equipment, and the technical faults that a traditional rotary shear knife is short in service life and prone to not shearing off the sewing thread, and the sewing thread is poor in continuous working performance are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of sock machines, and particularly relates to a scissor device for a sock machine. Background Art

[0002] The sock machines currently produced and sold on the market, especially the sock machines for sewing and turning socks, can sew the toes of the fully knitted socks, and cut the sutures after the sews are completed. The existing scissor devices mainly use a rotating moving knife and a fixed knife structure for the scissors used for shearing, that is, one knife is fixed and the other knife is rotating for shearing. This shearing structure often has technical faults such as continuous shearing and low shearing force for shearing the sutures. The technical solution with patent number CN200980120878.6, the scissor structure moves in a parallel direction to the upper sewing needle axis, and after the scissor assembly cuts the thread, the scissor assembly moves toward the rear side of the guide wire, and its movement direction is also consistent with the direction of the sewing mechanism exiting the sewing work. In actual use, this scissor assembly device often encounters the situation that the scissors occasionally fail to completely cut the sewing thread, and the sewing thread is pulled off the guide wire, resulting in the subsequent sewing failure and defective fabric production, which leads to shutdown failure.

[0003] How to further extend the service life of the scissors device and improve the shearing effect is the subject of research for those skilled in the art. Utility Model Content

[0004] The utility model provides a scissors device for a socks machine which has the advantages of simple structure, long service life and good shearing performance.

[0005] A scissor device for a sock machine comprises a scissor seat, wherein the scissor seat is respectively provided with an upper scissor blade and a lower scissor blade, wherein the upper scissor blade and the lower scissor blade intersect each other to form a shearing angle, wherein both the upper scissor blade and the lower scissor blade move linearly along the shearing angle, and the scissor seat is connected to a sewing device. The utility model changes the shearing mode of the traditional rotary structure scissors by allowing both the upper scissor blade and the lower scissor blade to move linearly along the shearing angle, and the shearing by intersecting linear lines is equivalent to a knife gate cutting structure, thereby ensuring the effectiveness of shearing and extending the service life of the scissor device. The angle range of the shearing angle is 40-60 degrees.

[0006] The scissor seat includes an upper scissor blade groove and a lower scissor blade groove that are integrally formed. The upper scissor blade groove is used to install the upper scissor blade, and the upper scissor blade moves along the groove body of the upper scissor blade groove, thereby improving the stability of the movement of the upper scissor blade; the lower scissor blade groove is used to install the lower scissor blade, and the lower scissor blade moves along the groove body of the lower scissor blade groove, thereby improving the stability of the movement of the lower scissor blade.

[0007] A first spring adjustment hole is provided in the scissor seat on the side of the upper scissor blade groove, and a first spring and a limit rod are installed in the first spring adjustment hole. One end of the first spring is connected to the bottom of the first spring adjustment hole, and the other end is connected to one end of the limit rod. The other end of the limit rod is connected to the protrusion at the tail of the upper scissor blade, and the protrusion at the tail of the upper scissor blade cooperates with the upper scissor blade piston. The upper scissor blade piston drives the upper scissor blade to move and cooperate with the lower scissor blade to shear the sewing line under the control of the cylinder, and then is reset by the first spring. A first closed panel is provided on the outside of the upper scissor blade groove to prevent the upper scissor blade from falling out of the upper scissor blade groove; a second closed panel is provided on the outside of the lower scissor blade groove to prevent the lower scissor blade from falling out of the lower scissor blade groove.

[0008] A second spring adjustment hole is provided in the scissor seat on the side of the lower scissor blade groove, and the second spring adjustment hole is matched with a second spring and a lower scissor blade piston connected to the cylinder. The lower scissor blade piston drives the lower scissor blade to move under the control of the cylinder to cooperate with the upper scissor blade to shear the sewing line, and then is reset by the second spring.

[0009] The sewing device includes a first gear driven by a sewing motor, the first gear is connected to a second gear through a belt, one side of the second gear is connected to a first connecting rod, and the other side of the second gear is connected to a second connecting rod through a first transmission shaft; the first connecting rod is connected to a first driving wheel, and the side of the first driving wheel is connected to an upper sewing needle through a connecting pin; the second connecting rod is connected to a second driving wheel, and the second driving wheel is connected to a third connecting rod through a second transmission shaft, and the third connecting rod is connected to a lower sewing needle. The upper sewing needle and the lower sewing needle are linked to the first gear driven by the sewing motor under the connection of their respective transmission connecting rods to achieve the sewing performance of the sock toe.

[0010] A connecting seat is provided at the bottom of the sewing device, and the connecting seat connects two parallel guide columns. A driving cylinder seat connected to the connecting seat is provided between the two parallel guide columns. The driving cylinder seat drives the sewing device as a whole to move forward and backward along the guide columns through the cylinder, ensuring that even if the scissor device does not interrupt the sewing line, the sewing line can be broken by moving the entire sewing device. The sewing device is provided with a guide wire piece for connecting the sewing line after cutting, protecting the sewing line left on the guide wire piece from falling off and ensuring the continuity of the next sewing work.

[0011] The blade matching end of the lower scissor blade and the upper scissor blade is provided with a V-shaped opening. The side of the lower scissor blade is provided with a driving rod, and the driving rod is matched and connected with the lower scissor blade piston to ensure that the lower scissor blade moves with the scissor blade piston.

[0012] The utility model shears the suture thread sewn by the sewing equipment by means of the upper scissor blade and the lower scissor blade which move in a straight line along the shearing angle, thereby avoiding technical faults such as the short service life of the traditional rotary shear knife, the easy failure to shear, and the poor continuous working performance of the suture thread. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings:

[0014] Figure 1 This is a three-dimensional structural schematic diagram of a scissor device for a sock machine according to the utility model;

[0015] Figure 2 This is a schematic cross-sectional view of a scissor device for a sock machine according to the utility model;

[0016] Figure 3 This is a schematic diagram of the exploded installation structure of the scissor seat in the utility model;

[0017] Figure 4 It is a schematic cross-sectional structure diagram of a scissor device for a sock machine in the utility model in a sewing state;

[0018] Figure 5 This is a schematic cross-sectional structural diagram of a scissor device for a sock machine in the utility model in a shearing state;

[0019] Figure 6 It is a schematic cross-sectional structure diagram of a scissor device for a hosiery machine in the utility model in a shearing state;

[0020] Figure 7 It is a schematic cross-sectional structure diagram of a scissor device for a hosiery machine in the utility model after the sewing thread is hooked after the shearing state is completed;

[0021] Figure 8 This is a schematic diagram of the three-dimensional structure of another side of a scissor device for a sock machine according to the utility model;

[0022] Fig. 9 It is a schematic diagram of the structure of the sewing equipment in the utility model. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-9 The specific implementation method further explains the technical solution of this patent in detail.

[0024] A scissor device for a hosiery machine includes a scissor seat 50, on which an upper scissor blade 7 and a lower scissor blade 6 are respectively installed, the upper scissor blade 7 and the lower scissor blade 6 intersect each other to form a shearing angle 55, the upper scissor blade 7 and the lower scissor blade 6 both move linearly along the shearing angle 55, and the scissor seat 50 is connected to a sewing device 1. The upper scissor blade 7 and the lower scissor blade 6 both move linearly along the shearing angle 55 to shear the sewing line 41 sewn by the sewing device 1. The angle range of the shearing angle 55 is 40-60 degrees to improve the shearing performance.

[0025] As a preferred structure, the scissor seat 50 includes an upper scissor blade slot 53 and a lower scissor blade slot 51 which are integrally formed. The upper scissor blade slot 53 is used to install the upper scissor blade 7, and the upper scissor blade 7 moves along the slot body of the upper scissor blade slot 53; the lower scissor blade slot 51 is used to install the lower scissor blade 6, and the lower scissor blade 6 moves along the slot body of the lower scissor blade slot 51. A first spring adjustment hole 74 is provided in the scissor seat 50 on the side of the upper scissor blade slot 53. The first spring adjustment hole 74 is used to install the first spring 71 and the limit rod 73. One end of the first spring 71 is connected to the bottom of the first spring adjustment hole 74, and the other end is connected to one end of the limit rod 73. The other end of the limit rod 73 is connected to the protrusion 75 at the tail of the upper scissor blade 7. The protrusion 75 at the tail of the upper scissor blade 7 cooperates with the upper scissor blade piston 72. The upper scissor blade piston 72 drives the upper scissor blade 7 to move forward through the cylinder to cooperate with the lower scissor blade 6 to complete the shearing of the sewing line. In order to improve the installation stability of the upper scissor blade 7 and the lower scissor blade 6, a first closing panel 77 is provided outside the upper scissor blade slot 53, and a second closing panel 54 is provided outside the lower scissor blade slot 51. The upper scissor blade piston 72 is installed in the upper scissor blade piston seat 76.

[0026] A second spring adjustment hole 52 is provided in the scissor seat 50 on the side of the lower scissor blade groove 51, and the second spring adjustment hole 52 is installed with a second spring 63 and a lower scissor blade piston 62 connected to the cylinder. The lower scissor blade piston 62 drives the lower scissor blade 6 to move forward through the cylinder to cooperate with the upper scissor blade 7 to complete the shearing of the sewing line. The upper scissor blade 7 and the lower scissor blade 6 can move at the same time. In order to improve the driving stability, a driving rod 61 is provided on the side of the lower scissor blade 6, and the driving rod 61 is connected to the lower scissor blade piston 62.

[0027] As a preferred structure, the sewing device 1 includes a first gear 12 driven by a sewing motor 11, the first gear 12 is connected to a second gear 14 through a belt, one side of the second gear 14 is connected to a first connecting rod 13, and the other side of the second gear 14 is connected to a second connecting rod 16 through a first transmission shaft 15; the first connecting rod 13 is connected to a first driving wheel 21, and the side of the first driving wheel 21 is connected to an upper sewing needle 2 through a connecting pin 20; the second connecting rod 16 is connected to a second driving wheel 17, and the second driving wheel 17 is connected to a third connecting rod 19 through a second transmission shaft 18, and the third connecting rod 19 is connected to a lower sewing needle 3. The upper sewing needle and the lower sewing needle are connected to the first gear driven by the sewing motor under the connection of their respective transmission connecting rods to achieve the sewing performance of the sock toe.

[0028] In order to further improve the shearing performance of the scissor device and ensure the function of shearing the sewing thread, a connecting seat 10 is provided at the bottom of the sewing device 1. The connecting seat 10 connects two parallel guide columns 8. A driving cylinder seat 91 connected to the connecting seat 10 is provided between the two parallel guide columns 8. The driving cylinder seat 91 drives the sewing device 1 to move as a whole through the cylinder, ensuring that even if there is sewing thread that is not cut by the upper scissor blade 7 and the lower scissor blade 6, the sewing thread can be pulled apart by the overall movement of the sewing device 1. A part of the sewing thread 41 after cutting cooperates with the guide wire 4 of the sewing device 1, and the other part of the sewing thread 41 is hung on the sewing needle 42 of the sewing needle disk 84 to ensure the continuity of the sewing function.

[0029] In order to further improve the shearing performance, the mating ends of the blade heads 76 of the lower scissor blade 6 and the upper scissor blade 7 are provided with a V-shaped opening 67, which can not only support and stabilize the position of the sewing line, but also facilitate the stability of shearing.

[0030] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A scissor device for a hosiery machine, comprising a scissor seat (50), characterized in that: The scissor seat (50) is respectively provided with an upper scissor blade (7) and a lower scissor blade (6), the upper scissor blade (7) and the lower scissor blade (6) intersect each other to form a shearing angle (55), the upper scissor blade (7) and the lower scissor blade (6) both move linearly along the shearing angle (55), and the scissor seat (50) is connected to the sewing device (1); The scissor seat (50) comprises an upper scissor blade slot (53) and a lower scissor blade slot (51) which are integrally formed; the upper scissor blade slot (53) cooperates with the upper scissor blade (7) to be mounted, and the upper scissor blade (7) moves along the slot body of the upper scissor blade slot (53); and the lower scissor blade slot (51) cooperates with the lower scissor blade (6) to be mounted, and the lower scissor blade (6) moves along the slot body of the lower scissor blade slot (51).

2. A scissor device for a hosiery machine according to claim 1, characterized in that: A first spring adjustment hole (74) is provided in the scissor seat (50) on the side of the upper scissor blade slot (53), and a first spring (71) and a limit rod (73) are installed in the first spring adjustment hole (74); a second spring adjustment hole (52) is provided in the scissor seat (50) on the side of the lower scissor blade slot (51), and a second spring (63) and a lower scissor blade piston (62) connected to the cylinder are installed in the second spring adjustment hole (52).

3. A scissor device for a hosiery machine according to claim 2, characterized in that: One end of the first spring (71) is connected to the bottom of the first spring adjustment hole (74), and the other end is connected to one end of a limit rod (73). The other end of the limit rod (73) is connected to a protrusion (75) at the tail of the upper scissor blade (7). The protrusion (75) at the tail of the upper scissor blade (7) cooperates with the upper scissor blade piston (72).

4. The scissor device for a hosiery machine according to claim 1, characterized in that: The sewing device (1) comprises a first gear (12) driven by a sewing motor (11); the first gear (12) is connected to a second gear (14) via a belt; one side of the second gear (14) is connected to a first connecting rod (13); the other side of the second gear (14) is connected to a second connecting rod (16) via a first transmission shaft (15); the first connecting rod (13) is connected to a first driving wheel (21); the side of the first driving wheel (21) is connected to an upper sewing needle (2) via a connecting pin (20); the second connecting rod (16) is connected to a second driving wheel (17); the second driving wheel (17) is connected to a third connecting rod (19) via a second transmission shaft (18); the third connecting rod (19) is connected to a lower sewing needle (3).

5. The scissor device for a hosiery machine according to claim 1, characterized in that: The sewing device (1) is provided with a connecting seat (10) at the bottom, the connecting seat (10) is connected to two parallel guide columns (8), and a driving cylinder seat (91) connected to the connecting seat (10) is provided between the two parallel guide columns (8).

6. The scissor device for a hosiery machine according to claim 1, characterized in that: The shear angle (55) ranges from 40 to 60 degrees.

7. The scissor device for a hosiery machine according to claim 1, characterized in that: The mating ends of the blade heads (76) of the lower scissor blade (6) and the upper scissor blade (7) are provided with V-shaped openings (67); a driving rod (61) is provided on the side of the lower scissor blade (6), and the driving rod (61) is matingly connected to the lower scissor blade piston (62).

8. The scissor device for a hosiery machine according to claim 1, characterized in that: A first closed panel (77) is provided on the outer side of the upper scissor blade groove (53); and a second closed panel (54) is provided on the outer side of the lower scissor blade groove (51).

9. The scissor device for a hosiery machine according to claim 1, characterized in that: The sewing device (1) is provided with a guide wire (4) for connecting the cut sewing thread (41).

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