Lower component of sock sewing machine and sock sewing machine

Abstract

The present invention relates to the technical field of sock sewing machines, and discloses a lower component of a sock sewing machine and the sock sewing machine, including a fixed seat and a sock suction tube component, the sock suction tube component including a sock suction tube sleeve and a sock suction tube, the lower end of the sock suction tube is connected to a negative pressure gas source, a lifting mechanism for driving the sock suction tube to lift and lower is arranged in the sock suction tube sleeve, a swinging member is arranged on the fixed seat, the swinging member is equipped with a driving device for driving its swinging, a first connecting part is designed below the swinging member on the fixed seat, a second connecting part and a third connecting part located below the second connecting part are designed on the sock suction tube sleeve, the second connecting part is rotatably connected to the swinging end of the swinging member, and the third connecting part is slidably and rotatably connected to the first connecting part. The lower component moves rapidly along the inclined and vertical directions at the same time, increasing the distance between the upper end opening of the lower component and the picking component, which is suitable for the transfer of long socks; and reduces the time of sock transfer, thereby improving production efficiency.

Description

Technical Field

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

[0002] Socks are knitted by a hosiery machine, but they are only semi-finished socks with two ends open. Usually, a pick-up device is used to transfer the knitted socks with two ends open from the hosiery machine to the sock sewing machine for sewing. In order to ensure that the thread ends of the socks are on the inner surface of the socks, which increases the beauty and comfort of the socks, the inner surface of the socks needs to be turned over to the outside before the sewing process.

[0003] Usually, semi-finished socks are transferred to the lower component of the sock sewing machine by using a picking component, and the semi-finished socks fall into the sock turning lifting cylinder in the lower component, and then the sock turning lifting cylinder extends upward into the upper component of the sock sewing machine to turn the inner surface of the socks to the outside. The key to the problem is how to smoothly make the semi-finished socks hanging on the picking component and kept in a drooping state fall completely into the sock turning lifting cylinder. In addition, since the straight-line distance between the upper edge opening of the sock turning lifting cylinder and the picking component is limited, and some long socks (such as knee-high socks) are longer than the above straight-line distance, the end of the drooping socks cannot smoothly enter the opening of the sock turning lifting cylinder, so the socks cannot smoothly fall into the sock turning lifting cylinder, which is prone to "stuck" and the failure rate of transferring socks is high.

[0004] For example, the utility model patent with authorization announcement number CN208201288U discloses a sock sewing machine, including 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 includes a sock suction cylinder and a sock turning and lifting cylinder fitted 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 provided on the outer side of the sock suction cylinder for driving the lower component to reciprocate in an inclined direction.

[0005] In the above patent, the lower component moving device includes a screw rod, a slider, and a guide rail. The screw rod rotates and cooperates with the slider under the drive of the motor, driving the lower component to reciprocate along the guide rail in the inclined direction, so that the sock turning lifting cylinder of the lower component moves to just below the annular picking part of the picking component, and the semi-finished socks fall into the sock turning lifting cylinder. However, the limitation of this patent is that due to the single reciprocating movement of the lower component in the inclined direction, the distance between the upper edge opening of the sock turning lifting cylinder and the annular picking part is limited, which still does not meet the length requirement that the over-the-knee socks can smoothly fall into the sock turning lifting cylinder. Summary of the invention

[0006] The purpose of the present invention is to solve the technical problem that the distance between the upper edge opening of the sock turning lifting cylinder and the annular picking portion is limited, which is not conducive to the transfer of long socks. The technical solution adopted is:

[0007] A lower component of a sock sewing machine comprises a fixed base fixed to a frame of the sock sewing machine and a sock suction tube component installed on the fixed base, the sock suction tube component comprising a sock suction tube sleeve and a sock suction tube arranged inside the sock suction tube sleeve, the lower end of the sock suction tube is connected to a negative pressure air source, a lifting mechanism for driving the sock suction tube to rise and fall is arranged inside the sock suction tube sleeve, a swinging piece is arranged on the fixed base, the swinging piece is equipped with a driving device for driving the swinging piece, a first connecting part is designed below the swinging piece on the fixed base, a second connecting part and a third connecting part located below the second connecting part are designed on the sock suction tube sleeve, the second connecting part is rotatably connected to the swinging end of the swinging piece, and the third connecting part is slidably and rotatably connected to the first connecting part.

[0008] There is a certain spatial position between the lower component of the sock sewing machine and the picking part, and the spatial position is limited (including the straight-line distance between the lower component and the picking part, the setting position of the lower component and the length of the lower component), resulting in the movement space of the lower component being limited. Generally, the movement form of the lower component is rotation, tilting movement, etc., resulting in the limited picking length of the lower component from the picking part. The main point of the invention is that, without changing the length of the sock suction tube, the spatial setting between the lower component and the picking part, and the setting of the height of the picking part, the movement trajectory of the lower component is changed, so that the sock suction tube in the lower component rotates in the tilt direction and translates in the vertical direction at the same time, which greatly increases the distance between the upper end opening of the sock suction tube and the annular picking part, which is conducive to the socks such as over-the-knee socks falling into the sock suction tube.

[0009] Preferably, in order to make the swinging member swingable, according to the actual motion trajectory and swing amplitude requirements, the shaft end of the swinging member is set as a semi-gear structure, and the swinging member driving device is composed of a motor and a driving gear mounted on the motor output shaft, and the driving gear is meshed with the gear teeth at the shaft end of the swinging member.

[0010] Taking into account the preferred positions of the swinging member, the driving gear and the motor on the fixed seat, as a further improvement, the portion of the fixed seat where the swinging member and the swinging member driving device are installed is a plate-like structure, the swinging member is arranged on the front side of the fixed seat, the swinging member driving motor is fixed to the back side of the fixed seat, the output shaft of the swinging member driving motor passes through the fixed seat from the back side to the front side, and the driving gear is installed on the end of the output shaft of the swinging member driving motor on the front side of the fixed seat; the shaft end of the swinging member is rotatably connected to the fixed seat through a rotating shaft, the rotating shaft is installed in a rotating shaft mounting seat through a bearing, the rotating shaft mounting seat is arranged on the back side of the fixed seat, the front end of the rotating shaft passes through the fixed seat from the back side to the front side, and the swinging member is fixedly installed at the front end of the rotating shaft.

[0011] The rotating shaft mounting seat, the rotating shaft, and the motor are installed on the back of the fixed seat, while the swing member and the driving gear are installed on the front of the fixed seat, so that each component meets the balance condition, thereby reducing the vibration on the fixed seat and maintaining the stability of the installation of each component and the stability of the rotational cooperation.

[0012] As a further limitation of the rotating shaft, the rotating shaft includes a first shaft body for mounting the swinging member and a second shaft body for mounting the bearing; a second shaft shoulder is provided at the rear end of the second shaft body;

[0013] A bearing seat is arranged in the rotating shaft mounting seat, a through hole is arranged at the front end of the bearing seat, a blocking cover is arranged at the rear end of the bearing seat, the second section of the rotating shaft is assembled in the bearing seat hole through two cylindrical bearings, the second shoulder of the rotating shaft is abutted against the inner ring of the rear cylindrical bearing, and a plane bearing is arranged between the rear end of the rotating shaft and the blocking cover.

[0014] As a preferred solution for the rotational connection between the swinging member and the fixed seat, the axis of the shaft end of the swinging member is provided with a first shaft hole, the first section of the shaft body of the rotating shaft is assembled in the first shaft hole of the swinging member, the first section of the shaft body of the rotating shaft is provided with a first shaft shoulder at the rear end, the length of the first section of the shaft body of the rotating shaft is less than the thickness of the swinging member, a threaded hole is provided at the front end of the rotating shaft, a clamping and fixing ring is connected to the front end of the rotating shaft by a bolt, and the clamping and fixing ring cooperates with the first shaft shoulder of the rotating shaft to fix both the swinging member and the rotating shaft. The first shaft shoulder between the first section of the shaft body and the second section of the shaft body abuts against one end face of the swinging member, that is, a certain gap is left between the swinging member and the fixed seat, so that the friction between the swinging member and the fixed seat is reduced, which is conducive to rotational cooperation.

[0015] As a preferred solution for the rotational connection between the sock suction tube sleeve and the swinging member, the second connecting portion of the sock suction tube sleeve is fixed with a connecting member, the connecting member is provided with an axis mounting hole, the swinging end of the swinging member is provided with a second axis hole, a short shaft is installed in the axis mounting hole of the connecting member through a bearing, the front end of the short shaft is assembled in the second axis hole of the swinging member, and the front end of the short shaft and the second axis hole of the swinging member are fixed by a pin.

[0016] As a preferred solution for the sliding and rotatable connection between the third connection part and the first connection part, a slide rail is arranged on one of the third connection part on the suction sock tube sleeve and the first connection part on the fixed seat, and the slide rail is provided with a slide groove, in which a sliding part sliding in the slide groove is arranged, and the other is rotatably connected to the sliding part.

[0017] The slide rail setting is further limited. The third connection part on the sock suction tube sleeve is fixedly installed with a slide rail. The slide groove is set on the slide rail. The opening width of the slide groove is smaller than the internal width of the slide groove. The first connection part on the fixed seat is fixedly installed with a bearing installation shaft. The end of the bearing installation shaft is equipped with a slide groove bearing. The outer ring of the slide groove bearing is used as the sliding part. The slide groove bearing is assembled in the slide groove. The inner side wall of the slide groove is slidably matched with the outer ring of the slide groove bearing. The opening width of the slide groove is smaller than the diameter of the outer ring of the bearing. The slide rail is fixedly connected to the sock suction tube sleeve. The swing of the swing part realizes the rotation of the sock suction tube sleeve in the inclined direction. The slide rail translates up and down in the vertical direction to realize the reciprocating movement of the sock suction tube sleeve in the vertical direction.

[0018] The present invention also proposes 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 adopts the lower component of the present invention.

[0019] Compared with the prior art, the present invention changes the moving trajectory of the lower component, and the lower component moves quickly in an inclined and vertical direction, thereby increasing the distance between the upper opening of the lower component and the picking component, which is suitable for the transfer of particularly long socks such as over-the-knee socks; and the reciprocating rotation of the lower component in the inclined direction and the reciprocating movement in the vertical direction are performed synchronously, and there is no order of sequential actions, which further reduces the time for transferring the socks from the picking component to the sewing component, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a general assembly diagram of the mechanism for driving the lower assembly to move in an embodiment of the present invention.

[0021] Figure 2 yes Figure 1 Exploded diagram.

[0022] Figure 3 It is a schematic structural diagram of a fixed seat stepped shaft in an embodiment of the present invention.

[0023] Figure 4 Schematic diagram of the structure of the swing member in the embodiment of the present invention.

[0024] Figure 5 Schematic diagram of the structure of the stepped shaft in the embodiment of the present invention.

[0025] Figure 6 Schematic diagram of the lower component in an embodiment of the present invention.

[0026] Figure 7 yes Figure 6 Cross-section along AA.

[0027] Figure 8 yes Figure 7 Enlarged view of point B in the middle.

[0028] Fig. 9 Schematic diagram of the structure of the slide rail in the embodiment of the present invention.

[0029] Fig.10 yes Fig. 9 Cross-sectional view of .

[0030] Fig.11 It is a simple schematic diagram comparing the moving trajectories of the lower components of the embodiment of the present invention and the prior art, which facilitates the understanding of the movement process of the lower components.

[0031] In the figure: lower component 1, fixed seat 2, connecting plate 20, connecting seat 21, swing member mounting hole 22, pinion mounting hole 23, suction sock tube assembly 3, suction sock tube sleeve 4, suction sock tube 5, swing member 6, first shaft hole 61, second shaft hole 62, square connecting member 7, bearing mounting hole 70, short shaft 71, short shaft 8, stepped shaft 9, first shaft body 90, second shaft body 91, third shaft body 92, shaft cap 93, tail shaft 94, first shaft shoulder 95, bearing mounting seat 10, first bearing 100, plane bearing 101, pinion 11, motor 12, slide rail 13, slide groove 130, bearing mounting shaft 14, slide groove bearing 140, sock 15, upper component 16, annular picking part 17. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with the accompanying drawings and implementation modes. The positional relationship described in the text is consistent with the positional relationship direction of the accompanying drawings themselves, which is only for the convenience of description and does not limit the structure of the present invention.

[0033] The sock sewing machine includes an upper assembly and a lower assembly coaxially arranged, a sewing assembly located between the upper assembly and the lower assembly, and a picking assembly located on one side of the sewing assembly. First, the picking assembly uses a ring-shaped picking portion to complete the process of transferring the socks to be sewn with an opening from the sock knitting machine to the sock sewing machine. Secondly, the lower assembly receives the socks, and the lower assembly and the upper assembly cooperate to turn the inner surface of the socks outward. Finally, the sewing assembly sews the opening of the socks.

[0034] The lower component 1 includes a fixed base 2 fixed to the sock sewing machine frame and a sock suction tube assembly 3 installed on the fixed base, the sock suction tube assembly includes a sock suction tube sleeve 4 and a sock suction tube 5 arranged inside the sock suction tube sleeve, the lower end of the sock suction tube is connected to a negative pressure air source, and a lifting mechanism for driving the sock suction tube to rise and fall is arranged inside the sock suction tube sleeve.

[0035] The present invention is to determine how the lower component can smoothly receive a long sock so that the sock can fall into the sock turning and lifting tube in the sock suction tube sleeve. Therefore, it is necessary to strictly control the moving track of the lower component, and the lower component also includes a lower component moving device.

[0036] Reference Figure 1 to Figure 2 In this embodiment, a fixed seat 2, a swinging member 6, a square connecting member 7, a short shaft 8, a stepped shaft 9, a bearing mounting seat 10, a pinion 11, a motor 12, a slide rail 13, and a bearing mounting shaft 14 are included.

[0037] Reference Figure 3 The fixing seat is a plate-like structure, with a connecting plate 20 at the upper end for connecting the fixing seat to the sock sewing machine, a connecting seat 21 for installing the bearing mounting shaft at the lower end, and a swing member mounting hole 22 and a pinion mounting hole 23 respectively provided in the middle from top to bottom.

[0038] Reference Figure 4 The upper part of the swing member, i.e., the swing end, is a chamfered trapezoid, and a first shaft hole 61 is provided at the swing end. The lower part of the swing member, i.e., the shaft end, is a quarter-circular arc, a half-gear structure, and a second shaft hole 62 is provided.

[0039] exist Figure 2 In the figure, the square connector 7 is provided with a bearing mounting hole 70, in which a bearing is mounted, the short shaft 8 is assembled in the bearing, the part of the short shaft extending out of the bearing is assembled in the first shaft hole 61, and is fixed to the swinging member with a pin; the square connector is fixed to the upper side wall of the sock suction tube sleeve by four bolts; through the above connection method, one side of the square connector is movably connected to the swinging end of the swinging member, and the other side is fixedly connected to the side wall above the sock suction tube sleeve.

[0040] Reference Figure 5 The stepped shaft is provided with a first shaft body 90, a second shaft body 91, a third shaft body 92, a shaft cap 93, and a tail shaft 94 from the front end to the rear end. The diameters of the first shaft body, the second shaft body, and the third shaft body gradually increase. The shaft cap has the largest diameter, and the tail shaft has the smallest diameter. Figure 2 The third shaft body is equipped with two first bearings 100, the tail shaft is equipped with a plane bearing 101, and the shaft cap 93 is sandwiched between the first bearing and the plane bearing. The bearing mounting seat 10 is provided with a stepped shaft mounting hole and an end cover, and the bearing mounting seat is fixed to the fixing seat by four bolts. Figures 6 to 8The stepped shaft with the three bearings is installed in the bearing mounting seat, the second shaft body 91 passes through the stepped shaft mounting hole and the swing member mounting hole 22, and the first shaft body 90 is installed in the second shaft hole 62 by a pin. Through the above assembly method, the swing member rotates relative to the fixed seat with the stepped shaft as the rotation axis. In order to reduce the friction between the swing member and the fixed seat, the second shaft body extends out of the swing member mounting hole for a certain distance, and the first shaft shoulder 95 between the first shaft body and the second shaft body abuts against one side end face of the swing member, that is, there is a certain gap between the swing member and the fixed seat.

[0041] Reference Figure 2 The output shaft of the motor 12 passes through the pinion mounting hole 23, is assembled in the through hole of the pinion 11, and is fixedly connected to the pinion with a pin. At the same time, the pinion is meshed with the gear at the end of the swing member shaft, and the motor is fixed to the fixed seat by bolts.

[0042] Reference Figures 9 and 10 One side of the slide rail 13 is fixedly connected to the lower side wall of the suction sock tube sleeve by bolts, and a slide groove 130 is provided on the other side of the slide rail, and the opening of the slide groove is smaller than the groove width of the slide groove. The bearing installation shaft 14 passes through the connecting seat 21 on the fixed seat, and the end of the bearing installation shaft is equipped with a slide groove bearing 140, and the outer ring of the slide groove bearing 140 is used as the sliding part. The slide groove bearing is assembled in the slide groove 130, and the inner side wall of the slide groove is slidably matched with the outer ring of the bearing, and the opening width of the slide groove is smaller than the diameter of the outer ring of the bearing.

[0043] Specific movement of the lower components:

[0044] The small gear, driven by the motor, drives the large gear meshing with the small gear to rotate in coordination, and the swinging member rotates together, thereby driving the square connecting member to move in the tilting direction.

[0045] Finally, the upper end of the sock suction tube sleeve is driven to move in the inclined direction. Since the lower end of the sock suction tube sleeve is not fixedly connected, the slide rail will move up and down synchronously, that is, the lower end of the sock suction tube sleeve will move up and down synchronously. Therefore, the entire sock suction tube sleeve rotates in the inclined direction while being accompanied by reciprocating movement in the vertical direction. In the present invention, the lower component is driven by the lower component moving device to rotate a certain inclination angle and move vertically downward for a distance, so that the lower component moves to the right below the annular picking part, allowing the socks to fall smoothly into the sock turning lifting cylinder in the sock suction tube sleeve. Subsequently, the pinion is reversed to rotate in the opposite direction while the slide rail moves upward, and the lower component is reset. After the reset is completed, the sock turning lifting cylinder is lifted up vertically and extends into the interior of the upper component. After the above action, the inner surface of the sock to be sewn is folded outward to the outside, and is sewn by the sewing component located between the upper component and the lower component, and finally sent out by the air suction tube.

[0046] Under the limited spatial position relationship between the lower component and the annular pickup part, this embodiment utilizes the lower component to rotate in the tilting direction while translating in the vertical direction, which greatly increases the distance between the upper opening of the lower component and the annular pickup part, so that longer socks can also be smoothly delivered from the annular pickup part to the lower component, ensuring that the socks fall smoothly into the sock suction tube. Fig.11 The distance D1 from the upper opening of the lower component to the annular pickup portion in the prior art is significantly smaller than the distance D2 in this embodiment, so that the over-the-knee socks can smoothly fall into the lower component. The upper end surface of the sock suction tube in the lower component is tilted. When the sock suction tube is tilted, the upper end surface of the sock suction tube is flush with the horizontal plane, which is suitable for the natural drooping state of the socks, further ensuring the success rate of the socks falling into it.

[0047] The prior art usually adopts two movement modes to achieve this. First, the lower component is directly tilted to the bottom of the annular picking part. Obviously, the distance between the sock suction tube sleeve and the picking component is not large enough, and it is not suitable for longer socks. Second, the lower component first moves parallel to the picking component, and then moves vertically downward to the bottom of the annular picking part. Obviously, the parallel displacement time of the lower component is long, and the production efficiency of the equipment is low.

[0048] Compared with the prior art, the embodiments of the present invention ensure that the socks can smoothly fall into the sock suction tube without changing the spatial position setting of the original equipment (especially the length of the sock suction tube, the distance between the lower component and the picking part, the position setting of the picking part, and the distance between the upper component and the lower component). The purpose is to change the moving trajectory of the lower component, and the lower component quickly moves along the inclined direction and the vertical direction at the same time, thereby increasing the distance between the upper end opening of the lower component and the picking component; in addition, the reciprocating rotation of the lower component along the inclined direction and the reciprocating movement in the vertical direction are carried out synchronously, and there is no order of action, which further reduces the time for transferring the socks from the picking component to the sewing component, thereby improving production efficiency.

[0049] The present invention is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A lower component of a sock sewing machine, comprising a fixing seat fixed to a sock sewing machine frame and a sock suction tube assembly installed on the fixing seat, the sock suction tube assembly comprising a sock suction tube sleeve and a sock suction tube arranged inside the sock suction tube sleeve, the lower end of the sock suction tube is connected to a negative pressure gas source, and a lifting mechanism for driving the sock suction tube to rise and fall is arranged in the sock suction tube sleeve, characterized in that: The fixed seat is provided with a swinging member, the swinging member is provided with a driving device for driving the swinging member to swing, the fixed seat is provided with a first connecting portion below the swinging member, the sock suction tube sleeve is provided with a second connecting portion and a third connecting portion below the second connecting portion, the second connecting portion is rotatably connected to the swinging end of the swinging member, and the third connecting portion is slidably and rotatably connected to the first connecting portion; The shaft end of the swing member is a half gear structure, and the swing member driving device is composed of a swing member driving motor and a driving gear mounted on the output shaft of the swing member driving motor, and the driving gear is meshed with the gear teeth of the swing member shaft end; The part of the fixing seat where the swing member and the swing member driving device are installed is a plate-shaped structure, the swing member is arranged on the front side of the fixing seat, the swing member driving motor is fixed on the back side of the fixing seat, the output shaft of the swing member driving motor passes through the fixing seat from the back side to the front side, and the driving gear is installed on the end of the output shaft of the swing member driving motor on the front side of the fixing seat; The shaft end of the swing member is rotatably connected to the fixed seat through a rotating shaft, the rotating shaft is installed in the rotating shaft mounting seat through a bearing, the rotating shaft mounting seat is arranged on the back of the fixed seat, the front end of the rotating shaft passes through the fixed seat from the back to the front, and the swing member is fixedly installed on the front end of the rotating shaft; The second connecting part of the sock suction tube sleeve is fixed with a connecting piece, the connecting piece is provided with an axis mounting hole, the swing end of the swing piece is provided with a second axis hole, a short shaft is installed in the axis mounting hole of the connecting piece through a bearing, the front end of the short shaft is assembled in the second axis hole of the swing piece, and the front end of the short shaft and the second axis hole of the swing piece are fixed by a pin; A slide groove is arranged on one of the third connecting part on the sock suction tube sleeve and the first connecting part on the fixed seat, and a sliding member sliding in the slide groove is arranged in the slide groove, and the other is rotatably connected with the sliding member.

2. The lower component of a sock sewing machine according to claim 1, characterized in that: The rotating shaft comprises a first shaft body for mounting the swinging member and a second shaft body for mounting the bearing; a second shaft shoulder is arranged at the rear end of the second shaft body; A bearing seat is arranged in the rotating shaft mounting seat, a through hole is arranged at the front end of the bearing seat, a blocking cover is arranged at the rear end of the bearing seat, the second section of the rotating shaft is assembled in the bearing seat hole through two cylindrical bearings, the second shoulder of the rotating shaft is abutted against the inner ring of the rear cylindrical bearing, and a plane bearing is arranged between the rear end of the rotating shaft and the blocking cover.

3. A lower component of a sock sewing machine according to claim 2, characterized in that: A first axial hole is provided at the axis center of the shaft end of the swinging member, the first section of the shaft body of the rotating shaft is assembled in the first axial hole of the swinging member, a first shaft shoulder is provided at the rear end of the first section of the shaft body of the rotating shaft, the length of the first section of the shaft body of the rotating shaft is less than the thickness of the swinging member, a threaded hole is provided at the front end of the rotating shaft, a clamping and fixing ring is connected to the front end of the rotating shaft by a bolt, and the clamping and fixing ring and the first shaft shoulder of the rotating shaft cooperate to fix both the swinging member and the rotating shaft.

4. The lower component of a sock sewing machine according to claim 1, characterized in that: The third connecting part on the sock suction tube sleeve is fixedly installed with a slide rail, the slide groove is arranged on the slide rail, the opening width of the slide groove is smaller than the internal width of the slide groove, the first connecting part on the fixed seat is provided with a bearing mounting shaft, the end of the bearing mounting shaft is equipped with a slide groove bearing, the outer ring of the slide groove bearing is used as the sliding part, the slide groove bearing is assembled in the slide groove, the inner side wall of the slide groove is slidably matched with the outer ring of the slide groove bearing, and the opening width of the slide groove is smaller than the diameter of the outer ring of the slide groove bearing.

5. A sock sewing machine, comprising an upper assembly, a lower assembly, a sewing assembly, and a picking assembly, wherein the upper assembly and the lower assembly are respectively arranged at the upper and lower ends of the sewing assembly, and the picking assembly is arranged at the side of the sewing assembly, characterized in that: The lower component adopts the lower component described in any one of claims 1-4.

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