Lower needle selection device and hosiery machine

Abstract

The lower needle selection device comprises a knitting needle assembly, a lower needle cylinder, a needle cylinder attached seat, a lower steel ring and a needle selector, the lower steel ring of the knitting needle is located on the lower portion of the needle cylinder attached seat, the lower steel ring is provided with an upward annular runway, an annular protrusion is arranged on the periphery of the annular runway, the lower end of a linkage piece is located on the annular runway, and the lower end of the linkage piece is connected with the needle selector. The linkage piece can abut against the inner circumferential face of the annular protrusion, a linkage protrusion part is arranged on the linkage piece in the direction close to the needle cylinder attachment periphery and located on the annular protrusion, a guide structure is arranged on the upper side of the annular protrusion and comprises a boss part, the boss part comprises a first guide face and a second guide face, and the first guide face and the second guide face are arranged in the circumferential direction of the annular protrusion. The first guide face and the second guide face are located at the two ends of the boss part respectively, the first guide face is inclined in the vertical direction, and the second guide face is inclined in the radial direction of the annular protrusion. The two-way needle selection mechanism can flexibly realize two-way needle selection action.

Description

Technical Field

[0001] The utility model relates to a circular knitting machine, in particular to a lower needle selection device and also to a sock machine with the lower needle selection device. Background Art

[0002] A circular knitting machine includes a needle assembly and a needle cylinder. The various parts of the knitting assembly are installed in the grooves on the outer circumference of the needle cylinder to accommodate and restrict the movement of the needle assembly so that the needle assembly can only slide in the grooves of the needle cylinder. The needle assembly usually has multiple functional parts, among which the needle head part of the needle can participate in the knitting action, and the rest of the parts realize the needle selection action through the control of the track, thereby realizing the movement control of the needle assembly. In some complex needle assemblies, it is necessary to control the movement of multiple parts in the needle assembly, and the current lower needle selection device is difficult to adapt to the use of current circular knitting machine equipment.

[0003] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a lower needle selection device which can flexibly realize a two-way needle selection action.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A lower needle selection device, comprising a knitting needle assembly, a needle cylinder seat, a lower steel ring and a needle selector, wherein the knitting needle assembly comprises a linkage piece, an outer wall of the needle cylinder seat is provided with an axial groove three, the linkage piece is arranged in the groove three of the needle cylinder seat, and the linkage piece can slide axially in the groove two of the needle cylinder seat; the linkage piece is provided with an elastic part near the inner circumference direction of the needle cylinder seat, the elastic part abuts against the needle cylinder seat, the linkage piece is provided with a needle selection protrusion near the outer circumference direction of the needle cylinder seat, and the needle selector cooperates with the needle selection protrusion to drive the linkage piece to move toward the inner circumference direction of the needle cylinder seat;

[0007] The lower steel ring is located at the lower part of the syringe attachment seat, the lower steel ring is provided with an upward annular runway, the outer periphery of the annular runway is provided with an annular protrusion, the lower end of the linkage piece is located on the annular runway, the linkage piece can be against the inner circumferential surface of the annular protrusion, the linkage piece is provided with a linkage protrusion near the outer circumferential direction of the syringe attachment, the linkage protrusion is located on the annular protrusion, and a guide structure is provided on the upper side of the annular protrusion, the guide structure includes a boss part, the boss part includes a guide surface one and a guide surface two, along the circumferential direction of the annular protrusion, the guide surface one and the guide surface two are respectively located at two ends of the boss part, the guide surface one is inclined in the up and down direction, and can drive the linkage protrusion of the linkage piece to move upward, and the guide surface two is inclined along the radial direction of the annular protrusion, and can drive the linkage protrusion of the linkage piece to move toward the inner circumferential direction.

[0008] The utility model is further configured that the guide structure includes two boss parts, and one end of the guide surfaces of the two boss parts are close to each other.

[0009] The utility model is further configured such that a recessed portion is formed between the two boss portions, the recessed portion smoothly transitions with the guide surface 1, and the guide surface 1 smoothly transitions with the upper side surface of the boss portion.

[0010] The utility model is further configured such that the height of the recessed portion is not higher than the height of the annular protrusion.

[0011] The utility model is further configured such that the inner circumference of the boss portion overlaps with the inner circumference of the annular protrusion, and the second guide surface smoothly transitions to the inner circumference of the boss portion.

[0012] The utility model is further configured that the guide structure is provided with three groups, the needle selectors are provided with three groups, and the needle selectors correspond to the guide structures one by one.

[0013] The utility model is further configured such that the knitting needle assemblies are grouped into six, and in each group of the knitting needle assemblies, the heights of the needle selection protrusions of the linkage plates are different; the needle selector has six groups of cutter heads, and the cutter heads correspond to the needle selection protrusions one by one.

[0014] The utility model is further configured that a pressing protrusion is provided on the upper part of the pressing piece, and the upper end of the linkage piece is pressed and linked with the pressing piece to drive the pressing protrusion to move upward to the groove 2 protruding from the syringe attachment seat.

[0015] The utility model is further configured that the knitting needle element comprises a double-headed latch needle, a needle guide piece, a connecting piece and a needle selection piece, the upper part of the needle selection piece is linked with the connecting piece, and the pressing piece is linked with the needle selection piece.

[0016] The utility model also provides a sock machine, comprising the lower needle selection device as described above, and also comprising a lower needle cylinder, the lower needle cylinder is arranged on the upper part of the needle cylinder attachment seat, the outer wall of the lower needle cylinder is arranged with a plurality of axial grooves 1, the upper end surface of the needle cylinder attachment seat is arranged with a plurality of radial grooves 2, and the grooves 1, 2 and 3 correspond to each other one by one;

[0017] The knitting needle assembly also includes a knitting needle element and a pressing piece, wherein the knitting needle element is arranged in the groove 1 of the lower needle cylinder, and the pressing piece is arranged in the groove 2 of the needle cylinder attachment seat, and the pressing piece can radially slide in the groove 2 of the needle cylinder attachment seat and can be linked with the knitting needle element, and the upper end of the linkage piece can be linked with the pressing piece;

[0018] The knitting needle element comprises a double-head latch needle, a needle guide piece, a connecting piece and a needle selection piece. The upper part of the needle selection piece is linked with the connecting piece, and the pressing piece is linked with the needle selection piece.

[0019] In summary, the utility model has the following beneficial effects:

[0020] The upper end of the linkage piece can be abutted against the lower part of the pressing piece, so that the linkage piece can push the pressing piece upward when it rises, and the pressing protrusion of the pressing piece can protrude from the groove 2 of the needle cylinder seat. The pressing protrusion can be pressed by the external presser, so that the pressing piece can slide in the groove 2 of the needle cylinder seat, thereby realizing regulation of the knitting needle assembly.

[0021] The movement trajectory of the linkage piece is guided by the annular track of the lower steel ring, and the linkage piece is controlled to select needles by means of the annular protrusion and the guide structure in cooperation with the linkage protrusion of the linkage piece, so that the linkage piece can realize automatic needle selection action, and then control the knitting needle assembly to realize corresponding control action. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the structure of a lower needle selection device in this embodiment;

[0023] Figure 2 This is a schematic diagram of the structure of the lower steel ring, the lower needle cylinder, and the needle cylinder attachment seat after being decomposed in this embodiment;

[0024] Figure 3 Schematic diagram of the structure of the knitting needle assembly in this embodiment;

[0025] Figure 4 Schematic diagram of the structure of six types of linkage pieces in this embodiment;

[0026] Figure 5 This is a schematic diagram of the structure of the lower steel ring and part of the knitting needle assembly in this embodiment;

[0027] Figure 6Schematic diagram of the structure of the lower steel ring in this embodiment.

[0028] : 1. lower needle cylinder; 2. needle cylinder seat; 3. lower steel ring; 31. annular runway; 32. annular protrusion; 33. guide structure; 331. boss portion; 3311. guide surface one; 3312. guide surface two; 333. recessed portion; 4. knitting needle assembly; 40. knitting needle element; 41. double-headed latch needle; 42. needle guide piece; 43. connecting piece; 44. needle selection piece; 45. pressing piece; 451. pressing protrusion; 46. linkage piece; 461. elastic portion; 462. needle selection protrusion; 463. lower end; 464. linkage protrusion; 465. upper end. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] This embodiment discloses a lower needle selection device, referring to Figure 1 , Figure 2 As shown, it includes a knitting needle assembly 4, a lower needle cylinder 1, a needle cylinder attachment seat 2, a lower steel ring 3 and a needle selector. The outer wall of the lower needle cylinder 1 is arranged with a plurality of axial grooves 1, and the needle cylinder attachment seat 2 is arranged at the lower part of the lower needle cylinder 1. The lower needle cylinder 1 and the needle cylinder attachment seat 2 cooperate with each other to guide the movement of the knitting needle assembly 4. A plurality of radial grooves 2 are arranged on the upper end 465 surface of the needle cylinder attachment seat 2, and an axial groove 3 is arranged on the outer wall, and the grooves 1, 2 and 3 correspond to each other.

[0031] Reference Figure 3 As shown, the knitting needle assembly 4 includes a knitting needle element 40, a pressing piece 45 and a linkage piece 46. The knitting needle element 40 includes a double-headed latch needle 41, a needle guide piece 42, a connecting piece 43 and a needle selection piece 44. The upper part of the needle selection piece 44 is linked with the connecting piece 43, and the pressing piece 45 is linked with the needle selection piece 44. The knitting needle element 40 is arranged in the groove 1 of the lower needle cylinder 1, the pressing piece 45 is arranged in the groove 2 of the needle cylinder attachment seat 2, the pressing piece 45 can slide radially in the groove 2 of the needle cylinder attachment seat 2 and can be linked with the knitting needle element 40, and the linkage piece 46 is arranged in the groove 2 of the needle cylinder attachment seat 2, and the linkage piece 46 can slide axially in the groove 2 of the needle cylinder attachment seat 2 and can be linked with the pressing piece 45. The structures of each part of the knitting needle assembly 4 are all recorded in detail in Chinese patents 2007800121004, 202310638505X and other documents, which will not be repeated here.

[0032] Reference Figure 4As shown, six linkage pieces 46 are shown in the figure, and the six linkage pieces 46 form a group, and the height of the needle selection protrusion 462 of each linkage piece 46 is different. The needle selector has six groups of cutter heads, and the cutter heads correspond to the needle selection protrusions 462 one by one, respectively controlling the actions of the six linkage pieces 46, and further controlling the actions of the six knitting needle assemblies 4.

[0033] The linkage piece 46 is arranged in a generally vertically oriented structure in the groove 3 of the syringe attachment 2, and has an upper end 465 and a lower end 463. The lower end 463 of the linkage piece 46 is supported by the lower steel ring 3 and guided by the structure on the lower steel ring 3 to achieve a lifting action; after the linkage piece 46 rises, the upper end 465 of the linkage piece 46 can abut against the lower part of the pressing piece 45, so that the corresponding position of the linkage piece 46 can produce a lifting linkage action.

[0034] Reference Figure 3 As shown, a pressing protrusion 451 is provided on the upper part of the pressing sheet 45, and the upper end 465 of the linkage sheet 46 is pressed and linked with the pressing sheet 45, which can drive the pressing protrusion 451 to move upward to the groove 2 protruding from the needle cylinder attachment seat 2. When the pressing protrusion 451 protrudes from the groove 2 of the needle cylinder attachment seat 2, the pressing protrusion 451 can be pressed by an external presser, so that the pressing sheet 45 can slide in the groove 2 of the needle cylinder attachment seat 2, thereby adjusting the knitting needle assembly 4.

[0035] Reference Figure 4 As shown, the linkage piece 46 is provided with an elastic part 461 near the inner circumference of the syringe attachment seat 2, and the elastic part 461 abuts against the syringe attachment seat 2. When the linkage piece 46 moves in the inner circumference, the elastic part 461 can apply elastic force to the linkage piece 46, thereby elastically limiting the linkage piece 46. The linkage piece 46 is provided with a needle selection protrusion 462 near the outer circumference of the syringe attachment seat 2. The installation position of the needle selector and the position of the needle selection protrusion 462 are mutually adapted. Through the action of the blade of the needle selector, the needle selection protrusion 462 is pushed to drive the linkage piece 46 to move in the inner circumference of the syringe attachment seat 2.

[0036] The lower steel ring 3 is located at the lower part of the syringe attachment seat 2, and plays a role in guiding the lower end 463 of the linkage piece 46, so that the linkage piece 46 can achieve a lifting action at the corresponding position.

[0037] Reference Figure 5 , Figure 6As shown, the lower steel ring 3 is provided with an upward annular track 31, and an annular protrusion 32 is provided on the outer periphery of the annular track 31. The lower end 463 of the linkage piece 46 is located on the annular track 31, and the lower end 463 of the linkage piece 46 is supported by the annular track 31, and the side surface of the lower end 463 can abut against the inner periphery of the annular protrusion 32. The inner periphery of the annular protrusion 32 limits the movement of the linkage piece 46 in the outer periphery direction, and the elastic part 461 limits the movement of the linkage piece 46 in the inner periphery direction, so that the position of the linkage piece 46 is relatively stably limited.

[0038] A linkage protrusion 464 is provided near the lower end 463 of the linkage piece 46, close to the outer peripheral direction of the needle cylinder. The linkage protrusion 464 is located on the annular protrusion 32. When the linkage piece 46 and the lower steel ring 3 generate relative rotation, the linkage protrusion 464 moves on the annular protrusion 32 and is affected by the structure of the annular protrusion 32 to realize the action.

[0039] A guide structure 33 is provided on the upper side of the annular protrusion 32, and the guide structure 33 can perform a needle selection action on the linkage piece 46. The guide structure 33 includes a boss portion 331, and the boss portion 331 includes a guide surface 1 3311 and a guide surface 2 3312. Along the circumferential direction of the annular protrusion 32, the guide surface 1 3311 and the guide surface 2 3312 are respectively located at two ends of the boss portion 331, and the guide surface 1 3311 is inclined in the up-down direction, and can drive the linkage protrusion 464 of the linkage piece 46 to move upward, and the guide surface 2 3312 is inclined in the radial direction of the annular protrusion 32, and can drive the linkage protrusion 464 of the linkage piece 46 to move toward the inner circumferential direction.

[0040] Furthermore, the guide structure 33 includes two boss portions 331, one end of the guide surface 1 3311 of the two boss portions 331 is close to each other, and one end of the guide surface 2 3312 of the two boss portions 331 is away from each other, and the two boss portions 331 form a roughly symmetrical structure, and the device can realize the action control of the linkage plate 46 during forward rotation and flipping.

[0041] A recessed portion 333 is formed between the two boss portions 331, and the recessed portion 333 smoothly transitions with the guide surface 1 3311, and the guide surface 1 3311 smoothly transitions with the upper side surface of the boss portion 331. The linkage piece 46 can achieve a smooth and stable guiding action when passing through the guide surface 1 3311. In addition, the height of the recessed portion 333 is not higher than the height of the annular protrusion 32, and is generally slightly lower than the height of the annular protrusion 32, so that the linkage protrusion 464 smoothly falls into the upper side of the recessed portion 333 when passing through the recessed portion 333.

[0042] The inner circumference of the boss portion 331 overlaps with the inner circumference of the annular protrusion 32 , and the second guide surface 3312 smoothly transitions with the inner circumference of the boss portion 331 . The second guide surface 3312 can guide the linkage piece 46 comfortably.

[0043] Reference Figure 5 , Figure 6 As shown, on the lower steel ring 3, there are three groups of guide structures 33, three groups of needle selectors are provided, and the needle selectors correspond one to one with the guide structures 33. Within the range of one rotation of the device, the knitting needle assembly 4 can realize continuous multi-layer knitting needle actions, thereby improving the application range of the sock machine equipment.

[0044] This embodiment also discloses a sock machine, including a lower needle selection device as in the embodiment. The lower needle selection device is used to enable the sock machine to have the effect of the above-mentioned lower needle selection device.

[0045] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A lower needle selection device, comprising a knitting needle assembly (4), a needle cylinder seat (2), a lower steel ring (3) and a needle selector, wherein the knitting needle assembly (4) comprises a linkage piece (46), the outer wall of the needle cylinder seat (2) is provided with an axial groove three, the linkage piece (46) is arranged in the groove three of the needle cylinder seat (2), and the linkage piece (46) can slide axially in the groove two of the needle cylinder seat (2); the linkage piece (46) is provided with an elastic part (461) near the inner circumference direction of the needle cylinder seat (2), the elastic part (461) is against the needle cylinder seat (2), the linkage piece (46) is provided with a needle selection protrusion (462) near the outer circumference direction of the needle cylinder seat (2), the needle selector cooperates with the needle selection protrusion (462) to drive the linkage piece (46) to move toward the inner circumference direction of the needle cylinder seat (2), characterized in that: The lower steel ring (3) is located at the lower part of the syringe attachment seat (2), and the lower steel ring (3) is provided with an upward annular track (31), and an annular protrusion (32) is provided on the outer periphery of the annular track (31). The lower end (463) of the linkage piece (46) is located on the annular track (31), and the linkage piece (46) can be abutted against the inner periphery of the annular protrusion (32). The linkage piece (46) is provided with a linkage protrusion (464) near the outer periphery of the syringe attachment, and the linkage protrusion (464) is located on the annular protrusion (32). The upper side of the annular protrusion (32) is provided with a guide structure (33), and the guide structure (33) is provided on the upper side of the annular protrusion (32). 3) includes a boss portion (331), the boss portion (331) includes a guide surface one (3311) and a guide surface two (3312), along the circumferential direction of the annular protrusion (32), the guide surface one (3311) and the guide surface two (3312) are respectively located at two ends of the boss portion (331), the guide surface one (3311) is inclined in the up-down direction, and can drive the linkage protrusion (464) of the linkage piece (46) to move upward, and the guide surface two (3312) is inclined along the radial direction of the annular protrusion (32), and can drive the linkage protrusion (464) of the linkage piece (46) to move in the inner circumferential direction.

2. A lower needle selection device according to claim 1, characterized in that: The guide structure (33) comprises two boss portions (331), and one end of the guide surfaces (3311) of the two boss portions (331) are close to each other.

3. A lower needle selection device according to claim 2, characterized in that: A recessed portion (333) is formed between the two boss portions (331), the recessed portion (333) and the guide surface 1 (3311) transition smoothly, and the guide surface 1 (3311) and the upper side surface of the boss portion (331) transition smoothly.

4. A lower needle selection device according to claim 3, characterized in that: The height of the recessed portion (333) is not higher than the height of the annular protrusion (32).

5. A lower needle selection device according to claim 1, characterized in that: The inner circumferential surface of the boss portion (331) overlaps with the inner circumferential surface of the annular protrusion (32), and the second guide surface (3312) smoothly transitions with the inner circumferential surface of the boss portion (331).

6. A lower needle selection device according to claim 1, characterized in that: The guide structure (33) is provided with three groups, and the needle selectors are provided with three groups, and the needle selectors correspond to the guide structures (33) one by one.

7. A lower needle selection device according to claim 1, characterized in that: The knitting needle assemblies (4) are grouped into six, and in each group of the knitting needle assemblies (4), the heights of the needle selection protrusions (462) of the linkage plates (46) are different; the needle selector has six groups of cutter heads, and the cutter heads correspond to the needle selection protrusions (462) one by one.

8. A socks machine, characterized in that: The lower needle selection device comprises a lower needle cylinder (1), the lower needle cylinder (1) is arranged on the upper part of the needle cylinder attachment seat (2), the outer wall of the lower needle cylinder (1) is arranged with a plurality of axial grooves 1, the upper end (465) surface of the needle cylinder attachment seat (2) is arranged with a plurality of radial grooves 2, and the grooves 1, 2 and 3 correspond to each other one by one; The knitting needle assembly (4) further comprises a knitting needle element (40) and a pressing plate (45), wherein the knitting needle element (40) is arranged in groove 1 of the lower needle cylinder (1), and the pressing plate (45) is arranged in groove 2 of the needle cylinder attachment seat (2), and the pressing plate (45) can radially slide in groove 2 of the needle cylinder attachment seat (2) and can be linked with the knitting needle element (40), and the upper end (465) of the linkage plate (46) can be linked with the pressing plate (45); The knitting needle element (40) comprises a double-headed latch needle (41), a needle guide piece (42), a connecting piece (43) and a needle selector (44); the upper part of the needle selector (44) is linked to the connecting piece (43); and the pressing piece (45) is linked to the needle selector (44).

9. A socks machine according to claim 8, characterized in that: The upper portion of the pressing sheet (45) is provided with a pressing protrusion (451), and the upper end (465) of the linkage sheet (46) is pressed and linked with the pressing sheet (45) to drive the pressing protrusion (451) to move upward to the second groove protruding from the syringe attachment seat (2).

10. The socks machine according to claim 8, characterized in that: The knitting needle element (40) comprises a double-headed latch needle (41), a needle guide piece (42), a connecting piece (43) and a needle selector (44); the upper part of the needle selector (44) is linked to the connecting piece (43); and the pressing piece (45) is linked to the needle selector (44).

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