Hosiery leg transfer mechanism in hosiery machine

Abstract

The invention belongs to the technical field of knitting equipment, particularly relates to a sock leg transfer mechanism in a hosiery machine, and solves the problem that a sock leg is easy to fall off when the transfer mechanism adsorbs the sock leg in a sock turning station in the prior art. The sock leg transfer mechanism in the hosiery machine comprises a connecting column, an upper swing arm and a lower swing arm are rotationally connected to the connecting column, a reset structure capable of driving the upper swing arm to rotate independently is further arranged between the connecting column and the upper swing arm, and the reset structure can enable the upper swing arm to rotate independently until a needle pressing disc is separated from a sock turning station when the needle pressing disc is separated from a needle hooking disc from the sock turning station. According to the scheme, the needle pressing disc can press and protect the socks to the position below the sock turning station until the sock legs are adsorbed, then the socks are driven by the reset structure to exit, and the effect of preventing the sock legs from falling off in the sock turning structure is achieved.

Description

[0001] The application is a divisional application of the application No. 2022110976927, the application date is September 8, 2022, and the invention name is a sock transfer mechanism in a hosiery machine. TECHNICAL FIELD

[0002] The application belongs to the technical field of knitting equipment, and particularly relates to a sock transfer mechanism in a hosiery machine. BACKGROUND

[0003] In the production of socks, the sock body needs to be knitted first, and then the sock head needs to be sewn. After the sock body is knitted, a transfer mechanism is needed to transfer the sock body to the sewing position of the sock head. In order to keep the knitting thread inside the sock, the sock often needs to be turned over. In the prior art, the sock is pressed by a presser disc during the transfer process, but the presser disc is separated when the sock enters the turning position. Therefore, the sock is not pressed by the presser disc during the process of transferring to the turning position and the adsorption step before turning the sock, which easily causes the sock to fall off during this process, affecting the production efficiency.

[0004] The utility model patent with the publication number CN209066097U discloses a mechanism for transferring socks, which comprises a base, an inner sleeve, an outer sleeve, a needle hooking disc mounting seat, a needle hooking disc, a thread pressing disc, a first lifting mechanism, a second lifting mechanism and a rotating mechanism. The inner sleeve and the outer sleeve are both installed on the base, the outer sleeve is sleeved outside the inner sleeve, and the needle hooking disc mounting seat is sleeved outside the outer sleeve; the thread pressing disc is sleeved outside the outer sleeve through a first arm and is located above the needle hooking disc mounting seat; the needle hooking disc is installed on the needle hooking disc mounting seat through a second arm; the first lifting mechanism is connected to the upper end of the inner sleeve and the needle hooking disc mounting seat, and is used to drive the needle hooking disc mounting seat to lift; the second lifting mechanism is connected to the thread pressing disc and the needle hooking disc to control the lifting of the thread pressing disc relative to the needle hooking disc; and the rotating mechanism is connected to the inner sleeve to drive the inner sleeve to rotate.

[0005] The presser disc of the prior art described above does not have an independent rotating driving structure, and cannot actively exit after entering the turning position. Therefore, the presser disc cannot press the sock body when entering the turning position, and must stay outside the turning position to wait for the needle hooking disc to come out. In this way, the sock body is not pressed when entering the turning position, and is easy to fall off, especially during the adsorption step before turning the sock in the turning position. SUMMARY

[0006] The application aims to solve the above problems of the prior art, and provides a sock transfer mechanism in a hosiery machine.

[0007] In order to realize the purpose of the present application, the following technical solutions can be used: a sock transfer mechanism in a hosiery machine, comprising a connecting column, an upper swing arm and a lower swing arm rotatably connected to the connecting column, a presser disc provided on the upper swing arm, a needle hooking disc provided on the lower swing arm, the needle hooking disc and the presser disc being used to grab a sock and transfer it to a sock turning station, the lower swing arm being movable up and down and rotatable along the connecting column, a support provided on the outside of the connecting column, a lifting structure provided on the support and capable of driving the upper swing arm to move up and down, a reset structure provided between the connecting column and the upper swing arm and capable of driving the upper swing arm to rotate independently, a circumferential positioning structure provided between the upper swing arm and the lower swing arm, and the upper swing arm being capable of rotating synchronously with the lower swing arm to a position where the presser disc and the needle hooking disc are located at the sock turning station, and the reset structure being capable of driving the upper swing arm to rotate independently when the presser disc is separated from the needle hooking disc at the sock turning station.

[0008] In the present application, the upper swing arm and the lower swing arm are rotatably and movably connected to the connecting column, the lower swing arm is provided with the needle hooking disc for hooking the last round of the sock, the upper swing arm is provided with the presser disc, and a lifting structure is further provided for controlling the lifting, so as to press the presser disc against the needle hooking disc, and the presser disc and the needle hooking disc are used to grab the sock and press it. The lower swing arm is driven to rotate and lift by a rotating driving structure and a lifting driving mechanism, and the rotating driving structure and the lifting driving mechanism are not explained in detail as they are prior art. Under the synchronous action of the circumferential positioning structure provided between the upper swing arm and the lower swing arm, the upper swing arm is mostly rotated in unison with the lower swing arm. However, after the needle hooking disc enters the sock turning station, the presser disc needs to be withdrawn. First, the upper arm is lifted to disengage the circumferential positioning structure, so that the upper swing arm and the lower swing arm are no longer connected synchronously. At this time, the reset structure works to drive the upper swing arm to rotate and exit the sock turning station to wait on the side until the lower swing arm exits and reenters the connection and synchronization state of the circumferential positioning structure. The upper swing arm and the lower swing arm rotate synchronously under the driving of the rotating structure.

[0009] In the sock transfer mechanism in the hosiery machine described above, the lifting structure comprises a lifting cylinder provided on the support, an elastic structure provided between the lower swing arm and the upper swing arm and allowing the upper swing arm to always have an upward lifting action, and an output shaft of the lifting cylinder abutting against the upper swing arm.

[0010] The lifting structure can control the downward pressing effect of the upper swing arm by the lifting cylinder, and the output shaft of the lifting cylinder abuts against the upper swing arm to directly act on the upper swing arm. The elastic mechanism provided between the upper swing arm and the lower swing arm allows the upper swing arm and the lower swing arm to have a tendency to move away from each other, that is, when the lifting cylinder does not act, the upper swing arm and the lower swing arm are in a state of moving away from each other and do not press each other. In particular, when the presser disc needs to be withdrawn from the sock turning mechanism, the lifting cylinder stops acting. At this time, the presser disc is lifted under the action of the elastic mechanism, so that the circumferential positioning structure loses the synchronous connection effect, so as to drive the presser disc to rotate out of the sock turning station.

[0011] In the above-mentioned sock machine, the lifting cylinder includes a full stroke cylinder and a half stroke cylinder, and when the full stroke cylinder is extended, the presser disc is pressed against the needle disc, and when the full stroke cylinder is retracted and the half stroke cylinder is extended, the presser disc is half-pressed against the needle disc.

[0012] When the full stroke cylinder is extended, the needle disc and the presser disc are locked in a state of being pressed against each other, which helps to pull out the sock, and when the half stroke cylinder is extended, the needle disc and the presser disc can preliminarily fix the sock without locking the loops of the sock, which plays a role of protecting the sock and prevents the sock from falling off the needle disc when the sock turning mechanism swings.

[0013] In the above-mentioned sock machine, the lifting structure includes a servo motor, the driving shaft of the servo motor is connected to the upper swing arm, and the servo motor is provided with at least two strokes corresponding to the driving shaft and the presser disc.

[0014] As a parallel solution of the lifting cylinder, the servo motor has two strokes, and during the process of grabbing the sock, the long stroke works, so that the needle disc and the presser disc are locked in a state of being pressed against each other, which facilitates the grabbing of the sock, and during the subsequent transfer process, the short stroke works, so that the needle disc and the presser disc can preliminarily fix the sock without locking the loops of the sock, which plays a role of protecting the sock and prevents the sock from falling off the needle disc when the sock turning mechanism swings.

[0015] In the above-mentioned sock machine, the reset structure includes a connecting disc fixedly connected to the upper swing arm, the connecting disc is provided with a rotating tooth, the bracket is provided with a driving motor and a gear arranged on the output shaft of the driving motor, and the gear is engaged with the rotating tooth.

[0016] The reset structure is used to drive the presser disc to exit the sock turning mechanism, the rotating tooth arranged on the connecting disc and the gear of the motor output shaft are engaged, the power provided by the motor drives the upper swing arm to make the presser disc rotate out of the sock turning position, and due to the reset structure, the presser disc can press and protect the sock in the sock turning position until the work of absorbing the sock is completed, which greatly reduces the possibility of the sock falling off in the sock turning position.

[0017] In the above-mentioned sock machine, the reset structure includes a swing cylinder arranged on the lower swing arm, one end of the swing cylinder is fixed to the lower swing arm, and the other end abuts against the upper swing arm.

[0018] As a first parallel scheme of the reset structure, a swing cylinder is used to drive the upper swing arm, wherein the swing cylinder is installed on the lower swing arm and the acting end is abutted against the upper swing arm at a position deviated from the rotating shaft, so that the upper swing arm can be pushed to rotate when the swing cylinder is extended.

[0019] In the sock transfer mechanism of the hosiery machine, the reset structure comprises a swing cylinder installed on the support, one end of the swing cylinder is fixed on the support, and the other end is abutable against the upper swing arm.

[0020] As a second parallel scheme of the reset structure, one end of the swing cylinder is fixed on the support, and the other end is abutable against the upper swing arm, and the swing cylinder has a transverse force on the upper swing arm when it is extended, so as to push the upper swing arm to rotate.

[0021] In the sock transfer mechanism of the hosiery machine, a reset spring is further connected between the upper swing arm and the lower swing arm to make them tend to coincide, and the reset spring makes the upper swing arm not rotate when the lower swing arm exits the sock turning station.

[0022] The reset spring is mainly used to make the upper swing arm and the lower swing arm tend to coincide in the vertical direction, and especially when the presser disc is outside the sock turning station, the reset spring can pull the upper swing arm to provide conditions for the coincidence of the upper swing arm and the lower swing arm and the clamping of the circumferential positioning structure.

[0023] In the sock transfer mechanism of the hosiery machine, the circumferential positioning structure comprises a positioning column arranged on the upper swing arm and a positioning hole arranged on the lower swing arm, and the positioning column can be clamped into the positioning hole when the presser disc and the latch needle disc are pressed.

[0024] The circumferential positioning structure is mainly used to connect the upper swing arm and the lower swing arm, so that the upper swing arm can be rotated synchronously, and the main working principle is that the positioning column of the upper swing arm is clamped into the positioning hole of the lower swing arm to realize the limiting connection.

[0025] In the sock transfer mechanism of the hosiery machine, the circumferential positioning structure comprises a positioning column arranged on the lower swing arm and a positioning hole arranged on the upper swing arm, and the positioning column can be clamped into the positioning hole when the presser disc and the latch needle disc are pressed.

[0026] As a parallel scheme of the positioning column of the upper swing arm clamped into the limiting hole of the lower swing arm, the positioning column can be arranged on the lower swing arm, and the positioning hole can be arranged on the upper swing arm, and the principle is basically the same, and the limiting connection is realized by clamping the positioning column of the lower swing arm into the positioning hole of the upper swing arm.

[0027] Compared with existing technologies: 1. Because this solution has a reset structure that drives the upper swing arm to rotate out of the sock-turning mechanism, the pressure needle plate can press the sock tube into the sock-turning mechanism until the sock tube adsorption process is completed. After adsorption is completed, the pressure needle plate ends the semi-pressurized state, and the reset structure drives the upper swing arm to the pressure needle plate to exit the sock-turning mechanism.

[0028] 2. The lifting structure can be controlled by a lifting cylinder to lift the upper swing arm. The output shaft of the lifting cylinder abuts against the upper swing arm and acts directly on it. The elastic mechanism between the upper and lower swing arms makes them tend to move away from each other. That is, when the lifting cylinder is not in action, the upper and lower swing arms are in a state of distance and will not press against each other. Through the cooperation of the elastic mechanism and the lifting mechanism, the upper and lower swing arms can be relatively pressed together and moved away from each other. Especially when the pressure plate needs to exit the sock-turning mechanism, the lifting cylinder stops working. At this time, the pressure plate will be lifted under the action of the elastic mechanism, so that the circumferential positioning structure loses the synchronous connection effect, so as to drive the pressure plate to rotate out of the sock-turning station.

[0029] 3. The main purpose of the return spring is to give the upper and lower swing arms a tendency to overlap in the vertical direction. Especially when the presser plate is waiting outside the sock turning station, when the hook plate rotates out, the presser plate may be interfered with and rotate simultaneously because the return structure is no longer applying force. The return spring can then pull the upper swing arm, providing conditions for the upper and lower swing arms to overlap and for the circumferential positioning structure to engage. Attached Figure Description

[0030] Figure 1 This is a schematic cross-sectional view of the overall structure of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the upper swing arm after it is driven away from the lower swing arm in Embodiment 1 of the present invention (the hook plate is not shown). Figure 3 This is a schematic diagram showing that the upper and lower swing arms are basically overlapping in Embodiment 1 of the present invention (the hook plate is not shown). Figure 4 This is a top view of the structure of Embodiment 2 of the present invention; Figure 5 This is a top view of the structure of Embodiment 3 of the present invention.

[0031] In the diagram: 1. Upper swing arm; 11. Pressing needle plate; 2. Lower swing arm; 21. Hook needle plate; 3. Connecting column; 31. Bracket; 4. Lifting structure; 41. Lifting cylinder; 42. Elastic structure; 5. Reset structure; 51. Connecting plate; 511. Rotating gear; 52. Drive motor; 521. Gear; 53. Swing cylinder; 6. Circumferential positioning structure; 61. Positioning column; 62. Positioning hole; 7. Reset spring. Detailed Implementation

[0032] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0033] Example 1 like Figures 1-3 As shown, a sock transfer mechanism in a sock machine includes a connecting column 3. An upper swing arm 1 and a lower swing arm 2 are rotatably connected to the connecting column 3. The upper swing arm 1 is provided with a pressure plate 11, and the lower swing arm 2 is provided with a hook plate 21. The hook plate 21 and the pressure plate 11 are used to grab the sock and transfer it to the sock turning station. The lower swing arm 2 can move up and down and rotate along the connecting column 3. A bracket 31 is provided on the outside of the connecting column 3. The bracket 31 is provided with a lifting structure 4 that can drive the upper swing arm 1 to move up and down. A reset structure 5 that can drive the upper swing arm 1 to rotate independently is also provided between the connecting column 3 and the upper swing arm 1. A circumferential positioning structure 6 is provided between the upper swing arm 1 and the lower swing arm 2. The upper swing arm 1 can rotate synchronously with the lower swing arm 2 until the pressure plate 11 and the hook plate 21 are located at the sock turning station. The reset structure 5 can allow the upper swing arm 1 to rotate independently until the pressure plate 11 is removed from the sock turning station when the pressure plate 11 is removed from the hook plate 21.

[0034] Specifically, in this solution, an upper swing arm 1 and a lower swing arm 2 are rotatably and vertically connected to a connecting column 3. The lower swing arm 2 is equipped with a hook plate 21 for hooking and gripping the last loop of the sock. The upper swing arm 1 is equipped with a pressure plate 11 and a lifting structure 4 for controlling its lifting and lowering. The pressure plate 11 can press the hook plate 21 tightly. With the cooperation of the hook plate 21 and the pressure plate 11, the sock is gripped and protected. The lower swing arm 2 has a separate rotation drive structure and a lifting drive mechanism to drive its rotation and lifting. These rotation drive structure and lifting drive structure are existing technologies and will not be explained in detail. The explanation is that, under the synchronous action of the circumferential positioning structure 6 between the upper and lower swing arms 2, the upper swing arm 1 is mostly driven by the lower swing arm 2 to rotate in unison. However, after the hook plate 21 enters the sock-turning station, it needs to exit the presser plate 11. First, the upper arm is raised to disengage the circumferential positioning structure 6, so that the upper swing arm 1 and the lower swing arm 2 are no longer synchronously connected. At this time, the reset structure 5 works, driving the upper swing arm 1 to rotate and exit the sock-turning station to wait on the side until the lower swing arm 2 exits and re-enters the connection and synchronization state of the circumferential positioning structure 6. The upper swing arm 1 and the lower swing arm 2 rotate synchronously under the drive of the rotating structure.

[0035] like Figure 1As shown, the lifting structure 4 includes a lifting cylinder 41 arranged on the support 31, and an elastic structure 42 arranged between the lower swing arm 2 and the upper swing arm 1 to make the upper swing arm 1 always have an upward lifting action. The output shaft of the lifting cylinder 41 can abut against the upper swing arm 1. The lifting cylinder 41 includes a full stroke cylinder and a half stroke cylinder. When the full stroke cylinder is extended, the pressing disc 11 is pressed against the hooking disc 21. When the full stroke cylinder is retracted and the half stroke cylinder is extended, the pressing disc 11 is half pressed against the hooking disc 21.

[0036] Specifically, the lifting structure 4 controls the pressing effect of the upper swing arm 1 by the lifting cylinder 41. The output shaft of the lifting cylinder 41 abuts against the upper swing arm 1 to directly act on the upper swing arm 1. The elastic mechanism arranged between the upper swing arm 1 and the lower swing arm 2 makes the upper and lower swing arms 2 have a tendency to move away from each other, i.e., the upper swing arm 1 and the lower swing arm 2 are in a state of moving away from each other without being pressed against each other when the lifting cylinder 41 does not act. In particular, when the pressing disc 11 needs to exit the sock turning mechanism, the lifting cylinder 41 stops acting. At this time, the pressing disc 11 will be lifted under the action of the elastic mechanism, so that the circumferential positioning structure 6 loses the synchronous connection effect, so as to drive the pressing disc 11 to turn out of the sock turning position.

[0037] Specifically, the lifting structure 4 controls the pressing effect of the upper swing arm 1 by the lifting cylinder 41. The output shaft of the lifting cylinder 41 abuts against the upper swing arm 1 to directly act on the upper swing arm 1. The elastic mechanism arranged between the upper swing arm 1 and the lower swing arm 2 makes the upper and lower swing arms 2 have a tendency to move away from each other, i.e., the upper swing arm 1 and the lower swing arm 2 are in a state of moving away from each other without being pressed against each other when the lifting cylinder 41 does not act. In particular, when the pressing disc 11 needs to exit the sock turning mechanism, the lifting cylinder 41 stops acting. At this time, the pressing disc 11 will be lifted under the action of the elastic mechanism, so that the circumferential positioning structure 6 loses the synchronous connection effect, so as to drive the pressing disc 11 to turn out of the sock turning position.

[0038] As shown in the figures, Figure 1 , Figure 2 , Figure 3 The reset structure 5 includes a connecting disc 51 fixedly connected with the upper swing arm 1. The connecting disc 51 is provided with a rotating tooth 511. The support 31 is provided with a driving motor 52 and a gear 521 arranged on the output shaft of the driving motor 52. The gear 521 is engaged with the rotating tooth 511.

[0039] In other words, the reset structure 5 is used to drive the pressing disc 11 to exit the sock turning mechanism. The rotating tooth 511 arranged on the connecting disc 51 and the gear 521 of the motor output shaft are in gear engagement. The motor provides power to the upper swing arm 1 to make the pressing disc 11 turn out of the sock turning position. It is also because of the reset structure 5 that the pressing disc 11 can press the sock into the sock turning position until the sock turning work is completed, greatly reducing the possibility of the sock falling off in the sock turning position.

[0040] The optimized upper swing arm 1 and lower swing arm 2 are also connected with a reset spring 7 which makes the two arms tend to coincide, and the reset spring 7 makes the upper swing arm 1 not rotate when the lower swing arm 2 exits the sock turning position.

[0041] Specifically, the reset spring 7 is mainly arranged to give the upper swing arm 1 and the lower swing arm 2 a tendency to coincide in the vertical direction, especially when the presser disc 11 waits outside the sock turning position, when the hook disc 21 rotates out, the presser disc 11 may be interfered and rotate at the same time because the reset structure 5 no longer exerts force, and the reset spring 7 can pull the upper swing arm 1 to provide conditions for the subsequent coincidence of the upper swing arm 1 and the lower swing arm 2 and the clamping of the circumferential positioning structure 6.

[0042] As shown in Figure 1 , the circumferential positioning structure 6 includes a positioning column 61 arranged on the upper swing arm 1 and a positioning hole 62 arranged on the lower swing arm 2, and the positioning column 61 can be clamped into the positioning hole 62 when the presser disc 11 and the hook disc 21 are pressed.

[0043] In other words, the circumferential positioning structure 6 is mainly used to connect the upper swing arm 1 and the lower swing arm 2, so that the upper swing arm 1 can be rotated synchronously, and the main working principle is that when the upper swing arm 1 and the lower swing arm 2 are in a pressed state, the positioning column 61 of the upper swing arm 1 is clamped into the positioning hole 62 of the lower swing arm 2 to achieve limiting connection.

[0044] Specific working principle: when the sock weaving starts, the hook disc 21 and the presser disc 11 are located on the sock weaving position, at this time the hook disc 21 and the presser disc 11 are in a state of far away and not pressed, the sock tube loop on the hook disc 21 is started to be knitted, the full stroke cylinder of the lifting structure 4 works to fully press the presser disc 11 on the sock tube loop on the hook disc 21, when the sock tube is knitted, then the lower swing arm 2 rotates, because the positioning column 61 and the positioning hole 62 of the circumferential positioning structure 6 have been clamped and limited, the upper swing arm 1 is also rotated synchronously, the hook disc 21 and the presser disc 11 take out the sock tube, then the full stroke cylinder stops working, the half stroke cylinder enters the working state, the presser disc 11 semi-presses the sock tube, the lower swing arm 2 starts to rotate with the upper swing arm 1 to the sock turning position, when the sock tube's adsorption work is completed, the half stroke cylinder stops working, under the action of the elastic structure 42, the upper swing arm 1 is pushed to lift, so that the positioning column 61 and the positioning hole 62 are disengaged and no longer limited, at this time the motor of the reset structure 5 works to rotate the upper swing arm 1 to make the presser disc 11 leave the sock turning position, and the hook disc 21 takes the sock tube to enter the next sock turning process, when the hook disc 21 exits and rotates out, because the reset spring 7 pulls the upper swing arm 1, the upper swing arm 1 will not be interfered and waits outside, when the lower swing arm 2 is located below the upper swing arm 1, the positioning column 61 clamps into the positioning hole 62 to enter the limiting state, and the upper swing arm 1 is rotated synchronously by the lower swing arm 2 to the sock weaving position to repeat the above work.

[0045] Embodiment 2 As Figure 4 shown, the structural principle of this embodiment is basically the same as that of Embodiment 1, the difference is that the reset mechanism 5 comprises a swing cylinder 53 arranged on the lower swing arm 2, one end of the swing cylinder 53 is fixed on the lower swing arm 2, and the other end abuts against the upper swing arm 1.

[0046] In other words, this embodiment uses the swing cylinder 53 to achieve the effect of driving the upper swing arm 1, wherein the swing cylinder 53 is installed on the lower swing arm 2, and the acting end abuts against the upper swing arm 1 at a position deviating from the rotating axis, so that when the swing cylinder 53 extends the output arm, the upper swing arm 1 can be pushed to rotate.

[0047] The specific working principle of the reset structure of this embodiment is that after the sock tube is adsorbed in the sock turning station, the upper swing arm 1 is lifted, the positioning column 61 and the positioning hole 62 of the circumferential positioning structure 6 are separated, the swing cylinder 53 works to extend the output arm, and the action point of the output arm is located on one side deviating from the rotating axis of the upper swing arm 1, so that the upper swing arm 1 can be pushed to rotate to the position where the pressing disc 11 exits the sock turning station.

[0048] Embodiment 3 As Figure 5 shown, the structural principle of this embodiment is basically the same as that of Embodiment 1, the difference is that the reset mechanism 5 comprises a swing cylinder 53 arranged on the lower swing arm 2, one end of the swing cylinder 53 is fixed on the lower swing arm 2, and the other end abuts against the upper swing arm 1.

[0049] In other words, one end of the swing cylinder 53 is fixed on the bracket 31, and the other acting end abuts against the upper swing arm 1, when the swing cylinder 53 works to extend, a transverse force is applied to the upper swing arm 1 to push the upper swing arm 1 to rotate.

[0050] The specific working principle of the reset structure of this embodiment is that after the sock tube is adsorbed in the sock turning station, the upper swing arm 1 is lifted, the positioning column 61 and the positioning hole 62 of the circumferential positioning structure 6 are separated, the swing cylinder 53 works to extend the output arm, and the action point of the output arm is located on one side deviating from the rotating axis of the upper swing arm 1, so that the upper swing arm 1 can be pushed to rotate to the position where the pressing disc 11 exits the sock turning station.

[0051] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A sock tube transfer mechanism in a sock machine, comprising a connecting column (3), wherein an upper swing arm (1) and a lower swing arm (2) are rotatably connected to the connecting column (3), wherein a pressure plate (11) is provided on the upper swing arm (1), and a hook plate (21) is provided on the lower swing arm (2), wherein the hook plate (21) and the pressure plate (11) are used to grab the sock tube and transfer it to the sock turning station, and the lower swing arm (2) can move up and down and rotate along the connecting column (3), characterized in that, The connecting column (3) is provided with a bracket (31) on the outside. The bracket (31) is provided with a lifting structure (4) that can drive the upper swing arm (1) to move up and down. The connecting column (3) and the upper swing arm (1) are also provided with a reset structure (5) that can drive the upper swing arm (1) to rotate independently. The upper swing arm (1) and the lower swing arm (2) are provided with a circumferential positioning structure (6). The upper swing arm (1) can rotate synchronously with the lower swing arm (2) until the pressure plate (11) and the hook plate (21) are located at the sock turning station. The reset structure (5) can make the upper swing arm (1) rotate independently until the pressure plate (11) is removed from the sock turning station when the pressure plate (11) is removed from the hook plate (21).

2. The sock tube transfer mechanism in a sock knitting machine according to claim 1, characterized in that, The lifting structure (4) includes a lifting cylinder (41) mounted on a bracket (31). An elastic structure (42) is provided between the lower swing arm (2) and the upper swing arm (1) to ensure that the upper swing arm (1) always has an upward lifting action. The output shaft of the lifting cylinder (41) can abut against the upper swing arm (1).

3. The sock tube transfer mechanism in a sock knitting machine according to claim 2, characterized in that, The lifting cylinder (41) includes a full-stroke cylinder and a half-stroke cylinder. When the full-stroke cylinder extends, the needle press plate (11) presses against the hook plate (21). When the full-stroke cylinder retracts and the half-stroke cylinder extends, the needle press plate (11) presses against the hook plate (21).

4. The sock tube transfer mechanism in a sock knitting machine according to claim 2, characterized in that, The lifting structure (4) includes a servo motor, the drive shaft of which can be connected to the upper swing arm (1), and the servo motor has at least two positions corresponding to at least two strokes between the drive shaft and the pressure plate (11).

5. A sock transfer mechanism in a sock knitting machine according to any one of claims 1-4, characterized in that, The reset structure (5) includes a connecting plate (51) fixedly connected to the upper swing arm (1). The connecting plate (51) is provided with a rotating tooth (511). The bracket (31) is provided with a drive motor (52) and a gear (521) set on the output shaft of the drive motor (52). The gear (521) meshes with the rotating tooth (511).

6. A sock transfer mechanism in a sock knitting machine according to any one of claims 1-4, characterized in that, The reset structure (5) includes a swing cylinder (53) disposed on the lower swing arm (2). One end of the swing cylinder (53) is fixed on the lower swing arm (2), and the other end abuts against the upper swing arm (1).

7. A sock transfer mechanism in a sock knitting machine according to any one of claims 1-4, characterized in that, The reset structure (5) includes a swing cylinder (53) mounted on a bracket (31). One end of the swing cylinder (53) is fixed to the bracket (31), and the other end can abut against the upper swing arm (1).

8. A sock transfer mechanism in a sock knitting machine according to any one of claims 1-4, characterized in that, A return spring (7) is also connected between the upper swing arm (1) and the lower swing arm (2) to make them tend to overlap. The return spring (7) ensures that the upper swing arm (1) will not rotate when the lower swing arm (2) exits the sock-turning station.

9. A sock transfer mechanism in a sock knitting machine according to any one of claims 1-4, characterized in that, The circumferential positioning structure (6) includes a positioning post (61) on the upper swing arm (1) and a positioning hole (62) on the lower swing arm (2). The positioning post (61) can be inserted into the positioning hole (62) when the pressure plate (11) and the hook plate (21) are pressed together.

10. A sock transfer mechanism in a sock knitting machine according to any one of claims 1-4, characterized in that, The circumferential positioning structure (6) includes a positioning post (61) on the lower swing arm (2) and a positioning hole (62) on the upper swing arm (1). The positioning post (61) can be inserted into the positioning hole (62) when the pressure plate (11) and the hook plate (21) are pressed together.

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