A sock sewing machine

Abstract

The present invention relates to a sock sewing machine, comprising an upper component, a lower component, a sewing component, and a picking component. The upper component and the lower component are respectively arranged at the upper and lower ends of the sewing component, the picking component is arranged on the side of the sewing component, and the lower component comprises a sock suction cylinder and a sock turning and lifting cylinder sleeved inside the sock suction cylinder; the sock turning and lifting cylinder is connected to a negative pressure gas source and can extend in the vertical axis direction toward the direction of the upper component; a lower component moving device for driving the lower component to reciprocate along an inclined direction is arranged on the outer side of the sock suction cylinder. The present invention increases the distance between the sock suction cylinder and the picking component, avoids the technical problems of malfunction and low production efficiency caused by the inability to smoothly feed the socks into the sock suction cylinder, and is particularly suitable for turning over long stockings.

Description

Technical Field

[0001] The present invention relates to the field of textiles, and in particular to a sock sewing machine. Background Art

[0002] At present, the socks on the market are woven by a hosiery machine to form semi-finished socks with openings at both ends, and then the toes are sewn to obtain finished socks; the hosiery machine comprises a workbench and a work disk installed on the workbench, and a cap cover and a half head connected to the work disk, a weaving mechanism including a sinker and knitting needles is installed between the cap cover and the work disk, wherein the knitting needles are a circular knitting needle group formed by 80-200 needles, and the cap cover and the half head are connected to the solenoid valve control box through the cylinder installed thereon; the socks produced are only semi-finished products, and the socks with openings at both ends need to be transferred to the sewing station and sewn through the second process.

[0003] In the prior art, the knitted socks with open ends are usually taken out from the sock knitting device by a picking device and transferred to a sewing station. In order to make the socks beautiful and comfortable, a turning device is required to turn the inner surface of the socks to the outside for sewing.

[0004] For example, the invention patent with publication number CN101970740A discloses a turning device used when sewing socks, comprising: a lower part and an upper part, the upper part and the lower part are arranged below and above a middle area respectively, and a device for supporting the socks to be turned over is arranged in the middle area; the turning device also includes a tubular body, which can suck the socks to be turned over so that the socks pass through the tubular body; then, the tubular body extends upward, so that the socks to be sewn are turned out from the inside to the outside.

[0005] Although the above-mentioned prior art can realize the flipping of socks, it still has the following shortcomings. In order to allow the socks transported from the picking device to the sewing station to fall smoothly into the lower part of the flipping device, in the process of transferring the socks from the knitting station to the sewing station, the lower upper end of the flipping device in the above-mentioned prior art is tilted toward the knitting station. However, this technical solution is only applicable to the manufacture of socks of relatively short length. For long stockings, it is difficult to smoothly send them into the flipping device, and the failure rate of transferring socks is high. The long stockings often cannot be successfully sent into the lower tubular body, resulting in the problem of being unable to flip, resulting in low yield rate, reduced production efficiency and other problems. Summary of the invention

[0006] The purpose of the present invention is to solve the above-mentioned problems and shortcomings in the prior art and to provide a sock sewing machine.

[0007] The present invention is achieved through the following technical solutions:

[0008] A sock sewing machine comprises an upper component, a lower component, a sewing component and a picking component, wherein the upper component and the lower component are respectively arranged at the upper and lower ends of the sewing component, the picking component is arranged on the side of the sewing component, and the lower component comprises a sock suction cylinder and a sock turning and lifting cylinder which is sleeved inside the sock suction cylinder; the sock turning and lifting cylinder is connected to a negative pressure air source and can reciprocate in a vertical direction; a lower component moving device is arranged on the outer side of the sock suction cylinder for driving the lower component to reciprocate in an inclined direction.

[0009] Furthermore, the lead screw of the lower component moving device is driven by the motor to rotate with the slider, thereby driving the lower component to reciprocate in the inclined direction along the guide rail.

[0010] Furthermore, the lower component moving device also includes a travel switch fixed on the motor and a travel positioning seat cooperating with the travel switch.

[0011] Furthermore, the guide rail and the lead screw are parallel to each other.

[0012] Furthermore, the sock suction tube is slidably connected to the guide rail via a connecting piece.

[0013] Furthermore, it also includes a sliding clamp driving component and a sliding clamp capable of moving up and down along the rear side wall of the upper component.

[0014] Furthermore, it also includes a fixed sleeve driving component and a fixed sleeve that passes through the top cover of the upper component and can move up and down.

[0015] Furthermore, when the lower component needs to reach the first position, the lower component moves to the bottom of the annular picking portion of the picking component by moving downward in parallel along the guide rail in the inclined direction; when the lower component needs to reach the second position, the lower component moves upward in parallel along the guide rail in the inclined direction to the bottom of the upper component.

[0016] Furthermore, the lower component switches between the first position and the second position in a state perpendicular to the horizontal plane.

[0017] The advantages of the technical solution are as follows. The present invention realizes the reciprocating movement of the sock suction tube upward or downward along the inclined direction through the lower component moving device, and the sock suction tube always moves in a state perpendicular to the horizontal plane during the movement. First, in the process of sock transfer by the picking component, the sock suction tube is directly below the annular picking part and keeps a large distance from the annular picking part, so that the socks can fall smoothly into the sock suction tube. Compared with the existing technology that the sock suction tube directly rotates toward the hosiery machine, thereby generating a certain degree of acute angle tilt relative to the horizontal plane, the present invention increases the distance between the sock suction tube and the picking component, avoiding the technical problems of failure and low production efficiency caused by the inability to smoothly send the socks into the sock suction tube, and the present invention is particularly suitable for turning over long stockings. In addition, compared with the technical solution that the sock suction tube first approaches the hosiery machine horizontally and then moves downward longitudinally, the present invention reduces the time required to send the socks into the sock suction tube by quickly and parallelly moving back and forth along the inclined direction, further improving the production efficiency. Moreover, in the technical solution used in the above-mentioned prior art of first approaching the hosiery machine laterally and then moving vertically downward, the distance between the sock suction tube and the picking device is still relatively close after the horizontal movement. Under this working condition, the material is easily stuck, which not only easily causes the equipment to pause, but may even damage the thinner products. In the technical solution of the present invention, the sock suction tube reciprocates upward or downward in an inclined direction in a state perpendicular to the horizontal plane, and the movement state of the sock suction tube is consistent with the state of the socks naturally tilting and drooping during the transfer process, which is more conducive to the smooth transfer and flipping of the socks. Finally, in the process of feeding the socks into the sock suction tube of the present invention, the sock suction tube and the sock turning lifting tube fitted inside the sock suction tube always remain perpendicular to the horizontal plane, and the sock turning lifting tube reciprocates in the vertical direction to varying degrees according to the length of the socks, further ensuring that the socks fall smoothly into the sock suction tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present invention, the drawings of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 is a first schematic diagram of an embodiment of the present invention;

[0020] Figure 2 is a second schematic diagram of an embodiment of the present invention;

[0021] Figure 3 is an enlarged view of a suturing assembly according to an embodiment of the present invention;

[0022] Figure 4 is a first enlarged view of the upper component of an embodiment of the present invention;

[0023] Figure 5 is a second enlarged view of the upper component of the embodiment of the present invention;

[0024] Figure 6 It is a first enlarged view of the lower component moving device according to an embodiment of the present invention;

[0025] Figure 7 is a second enlarged view of the lower component moving device according to an embodiment of the present invention;

[0026] Figure 8 The figure is a comparison diagram of the movement trajectory of the lower component of the embodiment of the present invention and the prior art.

[0027] In order to further clearly illustrate the structure of the present invention and the connection relationship between the various components, the following figure numbers are given and explained:

[0028] Upper component 1; upper support platform 11; rear side wall 12; top cover 13; sliding clamp 14; sliding clamp driving component 15; sliding clamp slide rail 16; fixed sleeve 17; fixed sleeve driving component 18; fixed sleeve slide rail 19; lower component 2; sock suction tube 22; sock turning lifting tube 23; sewing component 3; sewing plate 31; seam head machine 32; picking component 4; picking robot arm 41; annular picking part 42; supporting column 43; picking motor 44; lower component moving device 5; motor 51; screw rod 52; slider 53; guide rail 54; connecting piece 55; travel switch 56; travel positioning seat 57; 6-socks; D1 prior art sock feeding distance; D2 sock feeding distance of the present invention; S' prior art lower component moving trajectory; S' prior art lower component moving trajectory; 2' prior art lower component.

[0029] Through the above-mentioned description of the accompanying drawings, combined with the embodiments of the present invention, the technical solution of the present invention can be more clearly understood and explained. DETAILED DESCRIPTION

[0030] In order to make the technical means, objectives and effects of the present invention easy to understand, the embodiments of the present invention are described in detail below with reference to specific drawings.

[0031] It should be noted that all the terms used in the present invention for directional and positional indications, such as "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", "top", "low", "lateral", "longitudinal", "center", etc., are only used to explain the relative positional relationship and connection status between the components in a certain state (as shown in the accompanying drawings), and are only for the convenience of describing the present invention, rather than requiring the present invention to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes, and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0034] See attached Figure 1 and 2, an embodiment of the present invention provides a sock sewing machine. The sock sewing machine includes an upper component 1 and a lower component 2 which are coaxially arranged at the upper and lower ends, respectively, and a sewing component 3 located between the upper component 1 and the lower component 2, and a picking component 4 located on one side of the sewing component 3. The sock sewing machine can sew socks that have been knitted and opened at both ends. The knitting step is completed by a sock knitting machine. In actual production, the sock knitting machine and the sock sewing machine provided by the embodiment of the present invention are arranged adjacent to or side by side. The picking component 4 is located between the sock knitting machine and the sock sewing machine, and is used to transfer the socks that have been knitted and opened at both ends from the sock knitting machine to the sock sewing machine. The sock sewing machine described in the embodiment of the present invention also includes a lower component moving device 5. The lower component moving device 5 is arranged on the outer side of the sock suction tube 22, and is used to drive the lower component 2 to move back and forth along the inclined direction. The lower component 2 includes a sock suction cylinder 22 and a sock turning and lifting cylinder 23 sleeved inside the sock suction cylinder 22; the sock turning and lifting cylinder 23 is connected to a negative pressure gas source and can reciprocate in the vertical direction. Figure 1 , 4 As shown, the sock turning lifting tube 23 can be extended to the upper component 1.

[0035] See attached Figure 3 The picking assembly 4 includes a picking mechanical arm 41, an annular picking portion 42, a support column 43 and a picking motor 44 for driving the picking assembly 4. One end of the picking mechanical arm 41 is fixed on the support column 43 and can rotate in the horizontal direction around the support column 43. The other end of the picking mechanical arm 41 is provided with an annular picking portion 42, and the annular picking portion 42 is used to pick up socks from the hosiery machine. The stitching assembly 3 includes a sewing disc 31 and a toe sewing machine 32. The sewing disc 31 includes two semicircular parts. When the picking assembly 4 transfers the socks to the sewing disc 31, the two semicircular parts are interlocked, and then the toe sewing machine 32 is used to sew the socks. Before implementing the toe sewing step, the upper assembly 1 and the lower assembly 2 cooperate with each other to turn the socks from the inside out, so as to ensure that the sewn socks are beautiful and comfortable.

[0036] As attached Figure 1-5 As shown, the upper component 1 includes an upper support platform 11, a rear side wall 12, a top cover 13, a sliding clamp 14, a sliding clamp driving component 15, a sliding clamp slide rail 16, a fixed sleeve 17, a fixed sleeve driving component 18 and a fixed sleeve slide rail 19.

[0037] The upper support platform 11 is located on the upper part of the suturing assembly 3 and is used to provide support for other parts of the upper assembly 1. One end of the rear side wall 12 is vertically connected to the upper support platform 11, and the other end is vertically connected to the top cover 13. A through hole is opened in the middle of the top cover 13, and the fixing sleeve 17 passes through the top cover 13 through the through hole.

[0038] Two parallel slide rails are provided at the left and right ends of the rear side wall 12, one is a sliding clamp slide rail 16, and the other is a fixed sleeve slide rail 19. The sliding clamp 14 is driven by the sliding clamp driving component 15 to reciprocate in the vertical direction along the sliding clamp slide rail 16. The fixed sleeve 17 is driven by the fixed sleeve driving component 18 to reciprocate in the vertical direction along the fixed sleeve slide rail 19.

[0039] In one embodiment of the present invention, the sliding clamp driving component 15 is a lifting motor, which drives the belt to rotate through a gear meshing structure, and the handle of the sliding clamp 14 passes through the sliding clamp rail 16 on the rear side wall 12 and is fixed to the belt. After the lifting motor is started, the gear meshing with the lifting motor shaft drives the belt to rotate clockwise or counterclockwise, thereby realizing the rise or fall of the sliding clamp 14.

[0040] In one embodiment of the present invention, the fixed sleeve driving component 18 is a cylinder, which is connected to an air pump through a pipeline, and the fixed sleeve 17 is moved up and down by the inflation and deflation of the cylinder.

[0041] When the sock sewing machine provided by the embodiment of the present invention is used, the socks are picked up, turned over, and the ends are sewn in sequence, and finally the sewn socks are sent out through the air suction pipe. The present invention first uses the picking component 4 to take out the socks with two ends opened after knitting on the sock knitting machine, and the coils of the socks are hung on the needle holder of the annular picking part 42. The picking mechanical arm 41 is rotated horizontally around the support column 43, so that the annular picking part 42 is close to the sock sewing machine. Subsequently, the annular picking part 42 stops between the sock knitting machine and the sock sewing machine, and the lower component 2 is driven by the lower component moving device 5 to move obliquely downward at a certain angle to the bottom of the annular picking part 42, and the negative pressure air source connected to the sock turning lifting cylinder 23 is started, so that the socks fall into the sock turning lifting cylinder 23 inside the sock suction cylinder 22. In one embodiment of the present invention, the sock-turning lifting cylinder 23 can be quickly moved up and down below the annular picking portion 42, so that socks, especially long stockings, can fall into the sock-turning lifting cylinder 23 quickly and smoothly. After the socks fall into the sock-turning lifting cylinder 23, the annular picking portion 42 is reset and moved in the direction of the sock sewing machine, and the lower component 2 is reset and moved upward in an inclined direction at the same time, so that the upper component 1, the annular picking portion 42 and the lower component 2 are coaxial and collinear, and remain perpendicular to the horizontal plane. Subsequently, the sock-turning lifting cylinder 23 is lifted upward in the vertical direction, passes through the through hole of the upper support platform 11, extends into the interior of the upper component 1, and is fixed to each other with the fixed sleeve 17. In one embodiment of the present invention, the sock-turning lifting cylinder 23 is fixed to the fixed sleeve 17 by a latch structure. Through the above action, the inner surface of the socks to be sewn is flipped to the outside. Subsequently, the two semicircular parts of the sewing disc 31 are buckled together, and the toe sewing machine 32 is started to sew the socks, and after sewing, the socks are sent out through the air suction pipe.

[0042] In one embodiment of the present invention, the lower component moving device 5 includes: a motor 51, a screw rod 52, a slider 53, a guide rail 54 and a connecting piece 55. The screw rod 52 is connected to the motor 51, and under the drive of the motor 51, it rotates with the slider 53 with an internal thread, thereby driving the lower component 2 on the guide rail 54 parallel to the screw rod 52 to reciprocate along the inclined direction. The sock suction tube 22, which is a part of the lower component 2, is slidably connected to the guide rail 54 through the connecting piece 55. Therefore, under the drive of the motor 51, the lower component 2 can be moved up and down along the guide rail 54 in the inclined direction.

[0043] When the lower component 2 moves downward in parallel along the guide rail 54 in the inclined direction and moves to the bottom of the annular picking portion 42 of the picking component 4, the lower component 2 needs to reach the first position. When the lower component 2 moves upward in parallel along the inclined direction and moves to the bottom of the upper component 1, the lower component 2 needs to reach the second position. When the lower component 2 is in the first position, the socks can be sent into the sock turning lifting cylinder 23. When the lower component 2 is in the second position, the upper component 1 and the lower component 2 are coaxial and collinear. The lower component 2 switches between the first position and the second position in a state perpendicular to the horizontal plane.

[0044] In one embodiment of the present invention, the lower component moving device 5 further includes a travel switch 56 and a travel positioning seat 57 fixed on the motor 51. The travel switch 56 and the travel positioning seat 57 are used in conjunction with each other to control the movement and stop of the lower component 2.

[0045] like Figure 8 As shown, in order to deliver the socks 6 from the annular pick-up portion 42 to the lower assembly, the lower assembly 2' in the prior art rotates obliquely along the track S', while the lower assembly 2 in the embodiment of the present invention moves obliquely along the track S. Therefore, when delivering the socks, the distance D2 between the lower assembly 2 in the embodiment of the present invention and the annular pick-up portion 42 is greater than the distance D1 between the lower assembly 2' and the annular pick-up portion 42 in the prior art.

[0046] In the embodiment of the present invention, the lower component 2 moves to the ideal position only once in one direction, so that the socks are sucked into the sock suction tube 22, and during the movement, the lower component 2 always maintains a vertical state with the horizontal plane. The prior art requires that the lower component 2' be tilted around its center to allow the socks to be fed into the sock suction tube, or that the lower component first moves parallel and then moves vertically downward to allow the socks to be fed into the sock suction tube.

[0047] Compared with the prior art, the embodiment of the present invention firstly increases the distance between the upper opening of the lower component 2 and the picking component 4, thereby further ensuring that the socks fall smoothly into the sock suction tube 22; and because the distance between the upper opening of the lower component and the picking component 4 is relatively large, when the lower component 2 is directly below the picking component 4, the sock turning lifting tube 23 can extend upward from the sock suction tube 22 and move up and down in the vertical direction, thereby increasing the sock suction speed and facilitating the suction of the socks; finally, the embodiment of the present invention reduces the time required to send the socks into the sock turning lifting tube 23 by simplifying the motion trajectory, thereby further improving the production efficiency.

[0048] Obviously, the above embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, various changes, modifications, substitutions and improvements made to these embodiments by ordinary technicians in the field without creative work should be included in the protection scope of the present invention.

Claims

1. A sock sewing machine, comprising an upper assembly (1), a lower assembly (2), a sewing assembly (3), and a pick-up assembly (4), wherein the upper assembly (1) and the lower assembly (2) are respectively arranged at the upper and lower ends of the sewing assembly (3), and the pick-up assembly (4) is arranged at the side of the sewing assembly (3), characterized in that: The lower component (2) comprises a sock suction cylinder (22) and a sock turning and lifting cylinder (23) sleeved inside the sock suction cylinder (22); the sock turning and lifting cylinder (23) is connected to a negative pressure gas source and is capable of reciprocating in a vertical direction; a lower component moving device (5) is provided on the outer side of the sock suction cylinder (22) for driving the lower component (2) to reciprocate in an inclined direction; The lead screw (52) of the lower component moving device (5) is driven by the motor (51) to rotate in cooperation with the slider (53), thereby driving the lower component (2) to reciprocate in an inclined direction along the guide rail (54); It also includes a sliding clamp driving component (15) and a sliding clamp (14) capable of moving up and down along the rear side wall (12) of the upper component (1); When the lower component (2) needs to reach the first position, the lower component (2) moves downward in a parallel manner along the guide rail (54) in an inclined direction to move below the annular picking portion (42) of the picking component (4); when the lower component (2) needs to reach the second position, the lower component (2) moves upward in a parallel manner along the guide rail (54) in an inclined direction to move below the upper component (1).

2. The sock sewing machine according to claim 1, characterized in that: The lower component moving device (5) further comprises a travel switch (56) fixed on the motor (51) and a travel positioning seat (57) cooperating with the travel switch (56).

3. The sock sewing machine according to claim 1, characterized in that: The guide rail (54) and the lead screw (52) are parallel to each other.

4. The sock sewing machine according to claim 1, characterized in that: The sock suction tube (22) is slidably connected to the guide rail (54) via a connecting piece (55).

5. The sock sewing machine according to claim 1, characterized in that: It also includes a fixed sleeve driving component (18) and a fixed sleeve (17) that passes through the top cover (13) of the upper component (1) and can move up and down.

6. The sock sewing machine according to claim 1, characterized in that: The lower component (2) switches between the first position and the second position in a state perpendicular to a horizontal plane.

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