Cap cover of hosiery machine

Abstract

The utility model belongs to the technical field of hosiery machines, and particularly relates to a cap cover of a hosiery machine, which solves the problems that the cap cover is inconvenient to assemble in the early stage and maintain in the later stage, and the anti-torsion requirement of a needle opening hook is high. The cap cover of the hosiery machine comprises an annular disc body, at least one set of needle opening hooks are arranged on the annular disc body, the needle opening hooks are obliquely arranged, hook bodies at the front ends of the needle opening hooks downwards extend to the inner side of the annular disc body, and the needle opening hooks are arranged above the annular disc body through swing structures and can transversely swing in a reciprocating mode. The effect of facilitating early-stage assembly and later-stage maintenance is achieved, the shifting stress direction of the needle opening hook is the radial direction, torsion cannot occur, and the stable and accurate needle opening effect is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of sock knitting technology, and specifically relates to a cap cover for a sock knitting machine. Background Technology

[0002] The cap is an important component of a sock knitting machine, typically mounted above the needle cylinder and connected to other parts of the machine via a mechanical structure (such as a shaft or connecting rod). Its main function is to provide a stable knitting environment during the sock knitting process. The cap usually has a needle opener, used to open and close the needle latches on the sock needles during knitting, ensuring that the yarn is properly hooked and looped, thus producing socks that meet the required specifications.

[0003] In existing technology, knitting needles are generally vertically positioned on the lower part of the inside of the cap, meaning the needle tongue to be opened / closed is located on the lower part of the inside of the cap. To ensure smooth operation of the opening hook, most sock machines place the opening device on the lower side of the cap. However, placing the opening device between the cap and the center plate inevitably makes later maintenance inconvenient. To facilitate maintenance, some sock machines place the opening device on the upper part of the cap, but most of these machines achieve the opening function by rotating the Z-shaped opening hook circumferentially. This places higher demands on the anti-torsion of the opening hook and further increases the requirements for the installation angle, increasing installation costs and making it difficult to guarantee a stable opening effect. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a cap cover for a sock knitting machine.

[0005] To achieve the innovative objectives of this utility model, the following technical solutions can be used:

[0006] A cap for a sock machine includes an annular disc. At least one set of opening hooks is provided on the annular disc. The opening hooks are inclined and their front ends extend down to the inner side of the annular disc. The opening hooks are arranged above the annular disc by a swinging structure and can swing back and forth laterally.

[0007] The cap of this invention serves as the main body of the upper plate mechanism of a sock knitting machine. The needle opening hook on it can swing back and forth under the control of the swing structure. The hook body at the front end opens the needle tongue of the knitting needle. Moreover, the needle opening hook is located above the annular plate, which facilitates the initial assembly and subsequent maintenance. The knitting needle is located in the annular plate and is set at the bottom. The posture of the needle opening hook with the inner end lower and the outer end higher allows the hook body to extend into the corresponding position below, ensuring the needle opening effect. At the same time, it helps to make way for the probe tongue above. Moreover, compared with the existing technology of Z-shaped needle opening hooks that open the needle tongue by circumferential rotation, the driving method of the swinging needle opening hook in this cap can effectively avoid the circumferential twisting of the needle bar.

[0008] In the cap of the aforementioned sock machine, the swing structure includes a drive seat, the opening hook is rotatably connected to the drive seat via a mounting rod, the mounting rod is rotatably connected to the drive seat, and the drive seat and / or the annular disc are provided with a swing drive assembly connected to the opening hook.

[0009] The mounting rod is mounted on the drive seat and is inclined inward. A through hole is provided radially on the mounting rod, and a bolt hole communicating with the through hole is provided axially at the upper end of the mounting rod. The needle rod of the needle hook passes through the through hole, and the fixing bolt is engaged with the bolt hole, with its front end abutting and fixing to the needle rod. The swing drive assembly is used to provide swing driving force.

[0010] In the cap of the sock machine described above, an inclined base is provided between the drive seat and the annular disc. An acute angle is formed between the top surface and the bottom surface of the inclined base. The top surface and the bottom surface are detachably connected to the drive seat and the annular disc, respectively.

[0011] Alternatively, the inclined base and the annular disc may be an integral structure.

[0012] Alternatively, the inclined base and the drive seat may be an integral structure.

[0013] To achieve the tilting posture of the opening hook, the drive seat is set on the annular disc via an inclined base. The bottom and top surfaces of the inclined base are not parallel, and its cross-section can be triangular or trapezoidal. Preferably, the inclined base can be a single component, which is connected to both the annular disc and the drive seat. By replacing the inclined base with different inclinations, the tilting angle of the opening hook can be adjusted. Of course, the inclined base can also be an integral part formed on the annular disc, with its top surface tilted. The drive seat is installed on this tilted top surface. Alternatively, the inclined base can also be an integral part formed at the lower end of the drive seat, where the bottom surface of the drive seat is tilted relative to its cross-section. This tilted bottom surface is fixed to the top surface of the annular disc. The integral setting helps to reduce assembly steps. Furthermore, as an extension, the inclined base can be omitted, and the mounting rod can be set to tilt directly.

[0014] In the cap of the aforementioned sock machine, the swing drive assembly includes a first pneumatic cavity opened in the drive seat. The first pneumatic cavity is connected to a first air inlet through an internal first pneumatic channel. A swing actuator is provided between the first pneumatic cavity and the needle hook. The first air inlet is opened on the drive seat or the inclined base and is connected to a high-pressure gas generating assembly.

[0015] The swing drive assembly achieves the swing drive of the opening needle hook through pneumatic means. The high-pressure gas generating assembly connected to the first air inlet inputs high-pressure gas into the first pneumatic cavity through the first pneumatic channel. The high pressure in the cavity drives the swing actuator to move, and the swing actuator specifically moves the opening needle hook to rotate. It is equivalent to a built-in cylinder, which helps to simplify the number of parts and reduce the installation process.

[0016] In the cap of the aforementioned sock machine, the swing actuator includes an L-shaped lever. The drive seat has a horizontally extending connecting hole. The upper side of one end of the connecting hole opens outward through a vertically extending slot. The horizontal sliding section of the L-shaped lever is slidably connected to the connecting hole, and the vertical actuating section passes through the slot and extends outward at its upper end. The L-shaped lever is connected to the first pneumatic cavity and can slide close to or away from the limiting protrusion. The limiting protrusion is located at the top of the drive seat. The rear end of the opening hook swings between the vertical actuating section and the limiting protrusion. The opening hook is connected to the first reset elastic element and has a tendency to swing its rear end toward the vertical actuating section.

[0017] The connecting hole and the slot are connected and arranged in an L-shape. A first pneumatic cavity is provided between the horizontal sliding section of the L-shaped lever and the connecting hole. This cavity drives the axial sliding of the horizontal sliding section through internal high pressure. During the sliding process, the vertical actuating section passing through the slot achieves the corresponding actuating action. A first reset elastic element is used to rotate the opening hook in the opposite direction of the actuation to reset it, achieving a reciprocating oscillation effect. Specifically, the first reset elastic element can be a torsion spring set on the mounting rod. The two ends of the torsion spring are connected to the mounting rod and the drive seat respectively, so that the mounting rod has a rotational tendency to make the rear end of the opening hook adhere to the vertical actuating section. The limiting protrusion is located in the actuation direction of the vertical actuating section to limit the maximum angle of the opening hook being actuated and avoid damage. Details such as the switching valve and exhaust structure between the first pneumatic cavity and the high-pressure gas generating assembly are common knowledge and will not be elaborated on.

[0018] In the cap of the aforementioned sock machine, the limiting protrusion is also provided with a positioning screw hole whose extension direction is parallel to the moving direction of the L-shaped lever. A positioning bolt is screwed into the positioning screw hole, and the rear end of the needle hook swings between the vertical moving section and the bolt head of the positioning bolt.

[0019] A positioning bolt is provided on the limiting protrusion. The bolt head of the positioning bolt specifically limits the maximum angle of rotation. The positioning bolt is screwed into the positioning screw hole, which can easily adjust the screwing process, thus facilitating the adjustment of the maximum angle of rotation.

[0020] In the cap of the aforementioned sock machine, the inclined base includes an inclined top surface for mounting the drive seat. The inclined top surface is inclined downward on one side near the axis of the annular disc and on the side away from the needle hook body. The inclination direction is between the circumferential and radial directions of the annular disc body. The mounting rod is perpendicular to the inclined top surface. The hook body moves downward at an inclined angle when it is away from the needle tongue.

[0021] The tilting direction of the tilted top surface of the tilted base is between the radial and circumferential directions of the annular disc. The plane in which the opening hook swings is parallel to the tilted top surface, so that it can move backward and downward to make way after the opening action is completed, avoiding collision and friction with the probe tongue above. The probe tongue here is existing technology and will not be further elaborated.

[0022] In the cap of the aforementioned sock machine, the needle hook includes a needle bar and a hook body located at the front end of the needle bar. The hook body bends in the swing direction of the needle bar, with a bending angle of less than 90 degrees. The needle bar is rotatably connected to an annular disc.

[0023] The opening hook is similar to a J-shape, with the hook body at the front end bent at a small angle. The extension direction of the hook body is between the swing direction and the axial direction, and it is slightly raised. During the flicking process, the mating surface of the hook body and the needle tongue is equivalent to a slope, which ensures the effect of flicking the needle tongue open.

[0024] In the cap of the aforementioned sock machine, the needle bar is straight; or, the needle bar includes a front section and a rear section that are parallel to each other and are integrally connected by a downwardly bent section, and the rear section is connected to an annular disc.

[0025] The needle bar is generally straight. In order to further reduce the downward probing height of the hook and make full room for the upper probe tongue, a downward folding section can be set on the needle bar. The rear section is used for installation and driving, and the front section is used for the hook.

[0026] In the cap of the aforementioned sock machine, the annular disc is further provided with an elastic shuttle assembly. The elastic shuttle assembly includes a shuttle rod and a perforated plate fixed to the front end of the shuttle rod. The shuttle rod is rotatably connected to the shuttle rod seat via a transverse rotating shaft, and the rear end of the shuttle rod is connected to a rotation drive assembly.

[0027] The shuttle rod of the rubber band shuttle assembly can rotate vertically and is set above the annular disc via the shuttle rod seat, which facilitates early assembly and later maintenance. The rotation drive assembly is used to provide the rotation drive force for the shuttle rod, ensuring the corresponding wire pulling and guiding function of the perforated plate.

[0028] In the aforementioned cap of the sock machine, the rotation drive assembly includes a pneumatic base fixed to an annular disc, a shuttle seat detachably fixed to the pneumatic base, a second pneumatic cavity inside the shuttle seat, the rear end of the shuttle connected to the second pneumatic cavity, a second air inlet on the pneumatic base, the second air inlet and the second pneumatic cavity connected through an internal second pneumatic channel, the second air inlet connected to a high-pressure gas generating assembly, capable of inputting high positive pressure or high negative pressure into the second pneumatic cavity, and / or, the shuttle connected to a second reset elastic element.

[0029] The rotation drive assembly is pneumatically driven. The high-pressure gas generating assembly inputs high-pressure gas into the second pneumatic cavity through the second pneumatic channel, thereby pushing the rear section of the shuttle rod upward to make it rotate. This is equivalent to an internal cylinder, which simplifies the number of parts and reduces installation steps. For shuttle rod reversal control, it can be achieved by drawing gas out of the second pneumatic cavity to create a negative pressure that pulls the rear end of the shuttle rod back, or by pulling the second reset elastic element. Specifically, a spring can be used between the shuttle rod and the shuttle rod seat or pneumatic base to give the shuttle rod a tendency to rotate in the opposite direction, ensuring the reciprocating rotation of the shuttle rod. The details of the switching valve between the second air inlet and the high-pressure gas generating assembly, the exhaust structure, and the spring settings are common knowledge and will not be elaborated on.

[0030] Furthermore, in order to limit the maximum lifting height of the shuttle, a limiting component is also provided on the shuttle seat. The limiting component is T-shaped, and the connecting section and the shuttle seat between the two shuttles can be detachably fixed. The limiting section abuts against the upper side of the shuttle away from the second pneumatic cavity.

[0031] Compared with the prior art, the present invention has the following main advantages:

[0032] 1. The needle opening hook is located above the annular disc, which facilitates initial assembly and subsequent maintenance. The lower inner end and higher outer end of the needle opening hook allow the hook to extend into the corresponding position below, ensuring the needle opening effect. Moreover, compared to the Z-shaped needle opening hook which opens the needle tongue by circumferential rotation, the swing drive method can effectively avoid circumferential twisting of the needle bar.

[0033] 2. In order to achieve the tilting posture of the opening hook, the drive seat is set on the annular plate through the tilting base. The tilting base is detachably connected to the annular plate and the drive seat respectively. The tilting angle of the opening hook can be adjusted by replacing the tilting base with different tilting degrees.

[0034] 3. The swing drive assembly realizes the swing drive of the opening needle hook through pneumatic means. The high-pressure gas generating assembly inputs high-pressure gas into the first pneumatic cavity through the first pneumatic channel. The high pressure in the cavity drives the swing actuator to move, and the swing actuator specifically moves the opening needle hook to rotate. It is equivalent to a built-in cylinder, which helps to simplify the number of parts and reduce the installation process.

[0035] 4. The limiting protrusion is located in the towing direction of the vertical towing section. A positioning bolt is provided on the limiting protrusion. The bolt head of the positioning bolt specifically limits the maximum towing angle. The positioning bolt is screwed into the positioning screw hole, which can easily adjust the screwing process, thus facilitating the adjustment of the maximum towing angle.

[0036] 5. The needle bar is generally straight. To further reduce the downward protrusion height of the hook, a downward folding section can be set on the needle bar. The rear section is used for installation and driving, and the front section is used for the hook.

[0037] 6. The rotation drive assembly is achieved by pneumatic means. The high-pressure gas generating assembly inputs high-pressure gas into the second pneumatic cavity through the second pneumatic channel, thereby achieving the effect of pushing the rear section of the shuttle rod to rotate. It is equivalent to a built-in cylinder, which helps to simplify the number of parts and reduce the installation process.

[0038] 7. The tilting direction of the tilting top surface of the tilting base is between the radial and circumferential directions of the annular disc. The plane in which the opening hook swings is parallel to the tilting top surface, so that it can move backward and downward to make way after the opening action is completed, avoiding collision and friction with the probe tongue above. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall structure provided by this utility model (Example 1);

[0040] Figure 2 This is a schematic diagram of the cooperation between the opening hook and the swing structure provided by this utility model (Example 1);

[0041] Figure 3 This is a structural schematic diagram of the elastic band shuttle assembly provided by this utility model;

[0042] Figure 4 This is a structural schematic diagram of the swing actuator provided by this utility model;

[0043] Figure 5 This is a schematic diagram of the structure of the opening hook provided by this utility model (Example 1);

[0044] Figure 6 This is a rear view schematic diagram of the tilted base provided by this utility model (Example 1);

[0045] Figure 7This is a schematic diagram of the inclined base provided by this utility model being disposed on the annular disk (Embodiment 2).

[0046] Figure 8 This is a schematic diagram of the structure of the opening hook provided by this utility model (Example 3).

[0047] In the figure, the components are: annular disc 1, needle hook 2, hook body 21, needle bar 22, front section 23, rear section 24, lower fold section 25, swing structure 3, drive seat 31, mounting rod 32, swing drive assembly 33, first air inlet 34, slot 35, limiting protrusion 36, positioning bolt 37, swing actuator 4, L-shaped lever 41, horizontal sliding section 42, vertical moving section 43, inclined base 5, elastic band shuttle assembly 6, shuttle rod 61, perforated plate 62, shuttle rod seat 63, rotation drive assembly 64, pneumatic base 65, and second air inlet 66. Detailed Implementation

[0048] 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.

[0049] Example 1

[0050] Specific implementation examples Figure 1-6 As shown, the cap of this sock machine includes an annular disc 1. Multiple sets of needle hooks 2 are provided on the annular disc 1. The needle hooks 2 are inclined and their front hooks 21 extend down to the inner side of the annular disc 1. The needle hooks 2 are set above the annular disc 1 through a swing structure 3 and can swing back and forth laterally.

[0051] Specifically, this cap cover serves as the main body of the upper plate mechanism of the sock machine. The needle opening hook 2 on it can swing back and forth under the control of the swing structure 3. The hook body 21 at the front end opens the needle tongue of the knitting needle. Moreover, the needle opening hook 2 is set above the annular plate 1, which facilitates the initial assembly and subsequent maintenance. The knitting needle is located inside the annular plate 1 and is set lower. The posture of the needle opening hook 2 with the inner end lower and the outer end higher allows the hook body 21 to extend into the corresponding position below, ensuring the needle opening effect. Furthermore, compared with the Z-shaped needle opening hook 2 which opens the needle tongue by circumferential rotation, the swing driving method of the needle opening hook 2 in this cap cover can effectively avoid the circumferential twisting of the needle bar 22.

[0052] like Figure 2 , 6As shown, the swing structure 3 includes a drive base 31. The needle hook 2 is rotatably connected to the drive base 31 via a mounting rod 32. The mounting rod 32 is rotatably connected to the drive base 31. The drive base 31 and the annular disc 1 are provided with a swing drive assembly 33 connected to the needle hook 2. An inclined base 5 is provided between the drive base 31 and the annular disc 1. The top and bottom surfaces of the inclined base 5 are detachably connected to the drive base 31 and the annular disc 1, respectively. The inclined base 5 includes an inclined top surface. The side of the inclined top surface near the axis of the annular disc 1 and the side away from the hook body of the needle hook 2 are inclined downwards. The inclination direction is between the circumferential and radial directions of the annular disc 1. The mounting rod 32 is perpendicular to the inclined top surface. The hook body 21 moves downwards at an angle when the needle tongue away from the knitting needle is withdrawn.

[0053] Specifically, the mounting rod 32 is mounted on the drive seat 31 and is inclined inward. A through hole is provided radially on the mounting rod 32, through which the needle bar 22 of the needle hook 2 passes and is detachably fixed. The swing drive assembly 33 is used to provide the swing driving force. To achieve the tilted posture of the needle hook 2, the drive seat 31 is mounted on the annular disk 1 via a tilting base 5. The bottom and top surfaces of the tilting base 5 are not parallel, and its vertical cross-section is triangular. The tilting base 5 is a single component, and the tilt angle of the needle hook 2 can be adjusted by replacing the tilting base 5 with different tilt angles. The tilting direction of the tilting top surface of the tilting base 5 is located between the radial and circumferential directions of the annular disk 1. The plane containing the swing direction of the needle hook 2 is parallel to the tilting top surface, allowing it to retract and move backward and downward after the needle opening action is completed to make way, avoiding collision and friction with the probe tongue above (not shown in the figure).

[0054] like Figure 2 , 4As shown, the swing drive assembly 33 includes a first pneumatic cavity opened in the drive base 31. The first pneumatic cavity is connected to the first air inlet 34 through the first pneumatic channel inside. A swing actuator 4 is provided between the first pneumatic cavity and the needle hook 2. The first air inlet 34 is opened on the inclined base 5 and is connected to the high-pressure gas generating assembly (not specifically shown in the figure). The swing actuator 4 includes an L-shaped lever 41. A horizontally extending connecting hole is provided in the drive seat 31. The upper side of one end of the connecting hole opens outward through a vertically extending slot 35. The horizontal sliding section 42 of the L-shaped lever 41 is slidably connected in the connecting hole. The vertical actuating section 43 passes through the slot 35 and extends outward at its upper end. The L-shaped lever 41 is connected to the first pneumatic cavity and can slide close to or away from the limiting protrusion 36. The limiting protrusion 36 is provided on the top of the drive seat 31. The rear end of the opening hook 2 swings between the vertical actuating section 43 and the limiting protrusion 36. The opening hook 2 is connected to the first reset elastic member and has a tendency to swing the rear end toward the vertical actuating section 43. The first reset elastic member is a torsion spring provided on the mounting rod 32. The limiting protrusion 36 is also provided with a positioning screw hole whose extension direction is parallel to the moving direction of the L-shaped lever 41. A positioning bolt 37 is screwed into the positioning screw hole. The rear end of the opening hook 2 swings between the vertical moving section 43 and the bolt head of the positioning bolt 37.

[0055] Specifically, the swing drive assembly 33 achieves the swing drive of the opening hook 2 through pneumatic means. The high-pressure gas generating assembly connected to the first air inlet 34 inputs high-pressure gas into the first pneumatic cavity through the first pneumatic channel. The high-pressure drive swing actuator 4 in the cavity is activated, and the swing actuator 4 specifically moves the opening hook 2 to rotate. It is equivalent to a built-in cylinder, which helps to simplify the number of parts and reduce the installation process. The connecting hole and the slot 35 are connected and arranged in an L-shape. A first pneumatic cavity is provided between the horizontal sliding section 42 of the L-shaped lever 41 and the connecting hole. This cavity drives the axial sliding of the horizontal sliding section 42 through internal high pressure. During the sliding process, the vertical actuating section 43 passing through the slot 35 achieves the corresponding actuating action. The two ends of the torsion spring are connected to the mounting rod 32 and the drive seat 31 respectively, so that the mounting rod 32 has a rotational tendency to make the rear end of the needle hook 2 stick to the vertical actuating section 43. The limiting protrusion 36 is located in the actuating direction of the vertical actuating section 43 and is used to limit the maximum angle of the needle hook 2 to avoid damage. A positioning bolt 37 is provided on the limiting protrusion 36. The bolt head of the positioning bolt 37 specifically limits the maximum angle of actuation. The positioning bolt 37 is screwed into the positioning screw hole, which can be easily adjusted to adjust the screwing process, thus facilitating the adjustment of the maximum actuation angle.

[0056] In this embodiment, the needle hook 2 includes a needle bar 22 and a hook body 21 located at the front end of the needle bar 22. The hook body 21 is bent in the swing direction of the needle bar 22, with a bending angle of less than 90 degrees. The needle bar 22 is rotatably connected to the annular disc 1. The needle bar 22 includes a straight front section 23 and a rear section 24 that are parallel to each other. The front section 23 and the rear section 24 are integrally connected by a downwardly bent lower section 25. The rear section 24 is connected to the annular disc 1.

[0057] Specifically, the opening hook 2 is similar to a J-shape, with its front end hook body 21 bent at a small angle. The extension direction of the hook body 21 intersects with the flicking motion. During flicking, the mating surface of the hook body 21 in contact with the needle tongue is equivalent to a slope, ensuring the effect of flicking the needle tongue open. The needle bar 22 is generally straight. To further reduce the downward protrusion height of the hook body 21, a downward folding section 25 is provided on the needle bar 22. The rear section 24 is used for installation and driving, and the front section 23 is where the hook body 21 is located.

[0058] like Figure 1 , 3 As shown, the annular disc 1 is also equipped with a rubber band shuttle assembly 6. The rubber band shuttle assembly 6 includes a shuttle rod 61 and a perforated plate 62 fixed to the front end of the shuttle rod 61. The shuttle rod 61 is rotatably connected to the shuttle rod seat 63 via a transverse rotating shaft. The rear end of the shuttle rod 61 is connected to the rotation drive assembly 64. The rotation drive assembly 64 includes a pneumatic base 65 fixed to the annular disc 1. The shuttle rod seat 63 is detachably fixed to the pneumatic base 65. The shuttle rod seat 63 is provided with a second pneumatic cavity. The rear end of the shuttle rod 61 is connected to the second pneumatic cavity. The pneumatic base 65 is provided with a second air inlet 66. The second air inlet 66 and the second pneumatic cavity are connected through an internal second pneumatic channel. The second air inlet 66 is connected to a high-pressure gas generating assembly, which can input high positive pressure or high negative pressure into the second pneumatic cavity. In order to limit the maximum lifting height of the front end of the shuttle 61, a limiting component (not shown in the figure) is also provided on the shuttle base 63. The limiting component is T-shaped, and the connecting section is bolted to the shuttle base 63 between the two shuttles 61. The limiting section abuts against the upper side of the shuttle 61 away from the second pneumatic cavity.

[0059] Specifically, the shuttle 61 of the elastic band shuttle assembly 6 is vertically rotatable and is mounted above the annular disc 1 via the shuttle seat 63, facilitating initial assembly and subsequent maintenance. The rotation drive assembly 64 provides the rotational driving force for the shuttle 61, ensuring the corresponding wire pulling and guiding function of the perforated plate 62. The rotation drive assembly 64 is pneumatically driven. The high-pressure gas generating assembly inputs high-pressure gas into the second pneumatic cavity through the second pneumatic channel, thereby pushing the rear section 24 of the shuttle 61 upward to make it rotate. This is equivalent to an internal cylinder, which helps to simplify the number of parts and reduce the installation process. When reversal is required, the internal gas is extracted to create a negative pressure to attract the rear end of the shuttle downward, ensuring the reciprocating rotation of the shuttle 61. When the shuttle 61 rotates upward to reset, it abuts against the limiting section of the limiting component.

[0060] Specific working principle: During the knitting process, when it is necessary to move the needle tongue to open the knitting needle, high-pressure gas is introduced into the first pneumatic cavity, the L-shaped lever 41 moves, and the vertical moving section 43 moves the rear section 24 of the opening hook 2. The opening hook 2 rotates, and the hook body 21 at the front end opens the needle tongue. After the opening is completed, when it is necessary to reset, the high-pressure gas in the first pneumatic cavity is released, and the torsion spring drives the opening hook 2 to rotate backward and downward to reset. When the perforated plate 62 of the elastic bobbin assembly 6 moves downward, high-pressure gas is introduced into the second pneumatic cavity, pushing the rear end of the bobbin 61 upward. When it is necessary to reset, the high-pressure gas in the second pneumatic cavity is sucked out, and the internal negative pressure pulls the rear end of the bobbin 61 downward, driving the bobbin 61 to reverse and reset until the upper side of the bobbin 61 abuts against the limiting section of the limiting member.

[0061] Example 2

[0062] The working principle of this embodiment is basically the same as that of embodiment 1, except that the tilted base 5 is different.

[0063] Specific implementation examples Figure 7 As shown, an inclined base 5 is integrally formed on the annular disk 1. The top surface of the inclined base 5 is inclined, and the drive seat 31 is detachably fixed to the inclined top surface.

[0064] Specifically, the tilting base 5 is integrally formed on the annular disc 1, which helps to reduce assembly steps.

[0065] Example 3

[0066] The working principle of this embodiment is basically the same as that of embodiment 1, except that the opening hook 2 is different.

[0067] Specific implementation examples Figure 8 As shown, the needle bar 22 of the opening hook 2 is a completely straight line.

[0068] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A cap for a sock knitting machine, comprising an annular disc (1), wherein at least one set of needle hooks (2) are provided on the annular disc (1), characterized in that, The opening hook (2) is inclined and its front end hook body (21) extends down to the inner side of the annular disc (1). The opening hook (2) is set above the annular disc (1) through the swing structure (3) and can swing back and forth laterally.

2. The cap of the sock machine according to claim 1, characterized in that, The swing structure (3) includes a drive seat (31), the opening hook (2) is rotatably connected to the drive seat (31) via a mounting rod (32), the mounting rod (32) is rotatably connected to the drive seat (31), and the drive seat (31) and / or the annular disc (1) are provided with a swing drive assembly (33) connected to the opening hook (2).

3. The cap of the sock machine according to claim 2, characterized in that, An inclined base (5) is provided between the drive seat (31) and the annular disc (1). An acute angle is formed between the top surface and the bottom surface of the inclined base (5). The top surface and the bottom surface are detachably connected to the drive seat (31) and the annular disc (1), respectively. Alternatively, the inclined base (5) and the annular disk (1) may be an integral structure. Alternatively, the inclined base (5) and the drive base (31) may be an integral structure.

4. The cap of the sock machine according to claim 3, characterized in that, The swing drive assembly (33) includes a first pneumatic cavity opened in the drive seat (31). The first pneumatic cavity is connected to the first air inlet (34) through the first pneumatic channel inside. A swing actuator (4) is provided between the first pneumatic cavity and the needle hook (2). The first air inlet (34) is opened on the drive seat (31) or the inclined base (5) and is connected to the high-pressure gas generating assembly.

5. The cap of the sock machine according to claim 4, characterized in that, The swing actuator (4) includes an L-shaped lever (41). The drive seat (31) is provided with a horizontally extending connecting hole. The upper side of one end of the connecting hole is open to the outside through a vertically extending slot (35). The horizontal sliding section (42) of the L-shaped lever (41) is slidably connected to the connecting hole. The vertical moving section (43) passes through the slot (35) and extends outward at the upper end. The L-shaped lever (41) is connected to the first pneumatic cavity and can slide close to or away from the limiting protrusion (36). The limiting protrusion (36) is provided on the top of the drive seat (31). The rear end of the opening hook (2) swings between the vertical moving section (43) and the limiting protrusion (36). The opening hook (2) is connected to the first reset elastic element and has a tendency to swing the rear end toward the vertical moving section (43).

6. The cap of the sock machine according to claim 5, characterized in that, The limiting protrusion (36) is also provided with a positioning screw hole whose extension direction is parallel to the moving direction of the L-shaped lever (41). A positioning bolt (37) is screwed into the positioning screw hole. The rear end of the opening hook (2) swings between the vertical moving section (43) and the bolt head of the positioning bolt (37).

7. The cap of the sock machine according to claim 3, characterized in that, The inclined base (5) includes an inclined top surface for mounting the drive seat (31), the inclined top surface is inclined downward on one side near the axis of the annular disc (1) and on the side away from the hook body of the needle hook (2), the inclination direction is between the circumferential and radial directions of the annular disc (1), the mounting rod (32) is perpendicular to the inclined top surface, and the hook body (21) moves downward inclinedly away from the needle tongue.

8. The cap of the sock machine according to claim 1, characterized in that, The opening hook (2) includes a needle bar (22) and a hook body (21) located at the front end of the needle bar (22). The hook body (21) bends in the swing direction of the needle bar (22) with a bending angle of less than 90 degrees. The needle bar (22) is rotatably connected to the annular disc (1). The needle bar (22) is straight; or, the needle bar (22) includes a front section (23) and a rear section (24) that are parallel to each other and are straight. The front section (23) and the rear section (24) are connected together by a downwardly bent section (25), and the rear section (24) is connected to the annular disc (1).

9. The cap of the sock machine according to any one of claims 1-8, characterized in that, The annular disc (1) is also provided with a rubber band shuttle assembly (6). The rubber band shuttle assembly (6) includes a shuttle rod (61) and a perforated plate (62) fixed to the front end of the shuttle rod (61). The shuttle rod (61) is rotatably connected to the shuttle rod seat (63) through a transverse rotating shaft. The rear end of the shuttle rod (61) is connected to the rotation drive assembly (64).

10. The cap of the sock machine according to claim 9, characterized in that, The rotation drive assembly (64) includes a pneumatic base (65) fixed on the annular disc (1), a shuttle seat (63) detachably fixed on the pneumatic base (65), a second pneumatic cavity provided inside the shuttle seat (63), the rear end of the shuttle (61) being connected to the second pneumatic cavity, a second air inlet (66) provided on the pneumatic base (65), and the second air inlet (66) being connected to the second pneumatic cavity through an internal second pneumatic channel; The second air inlet (66) is connected to the high-pressure gas generating assembly, which can input high positive pressure or high negative pressure into the second pneumatic cavity, and / or the shuttle (61) is connected to the second reset elastic element.

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