Yarn tensioning mechanism for circular knitting machine

Abstract

The utility model relates to a yarn tensioning mechanism for a circular knitting machine, which belongs to the technical field of yarn tensioning, and comprises a fixed base, the top of the fixed base is provided with a movable adjusting mechanism, the movable adjusting mechanism comprises two sliding blocks which are connected with the top of the fixed base in a sliding manner, supporting seats are fixedly mounted at the tops of the sliding blocks, and a bottom wire feeding wheel is fixedly mounted between the two supporting seats. According to the yarn tensioning mechanism for the circular knitting machine, the supporting base and the bottom yarn feeding wheel can be driven to move horizontally through the sliding block, so that yarn between the bottom yarn feeding wheel and the top yarn feeding wheel is tightened, the fixing plate can be driven to fix the supporting base and the bottom yarn feeding wheel under the action of the adjusting screw rod and the limiting rod, and the yarn tensioning mechanism is convenient to use. The top yarn feeding wheel can be driven by the band-type brake motor and the reciprocating lead screw to perform free lifting adjustment, so that the height and the distance between the bottom yarn feeding wheel and the top yarn feeding wheel are adjusted, the tightness of yarns is conveniently adjusted, and the flexibility and the practicability of the device are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of yarn tensioning, in particular to a yarn tensioning mechanism for a circular knitting machine. Background Art

[0002] Circular knitting machine is a kind of equipment used for textile. It has developed rapidly because of its multiple loop forming systems (called yarn feeding paths or loop forming paths in enterprises, referred to as paths), high speed, high output, fast pattern change, good fabric quality, few processes and strong product adaptability. It is mainly used for the production of knitted fabrics. It is mainly composed of a frame, a yarn feeding mechanism, a weaving mechanism, a weft straightening device, a main electrical appliance and a tensioner. It can weave various knitted fabrics through the cooperation of knitting needles and various auxiliary devices.

[0003] Please refer to the patent publication No. CN117026494A for a yarn tensioning mechanism for a large circular knitting machine. The patent proposes "including a bottom plate, a first support plate fixedly connected to both sides of the top wall of the bottom plate; a first roller rotatably connected between a pair of side walls of the first support plate; a first rotating shaft rotatably connected between a pair of side walls of the first support plate; a first rocking arm fixedly connected to the outer circular wall of a pair of the first rotating shaft; a second roller rotatably connected between a pair of side walls of the first rocking arm, and the invention provides a yarn tensioning mechanism for a large circular knitting machine". However, the device only uses springs and torsion springs to adjust the yarn during use, and has a low adjustment ability. It is unable to provide elastic support of a larger length, and has low practicality and flexibility. Therefore, the present application proposes another technical solution to solve this problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a yarn tensioning mechanism for a large circular knitting machine, which has the advantages of being able to adjust the yarn to a greater extent, etc., and solves the problems that the comparative patent device only uses springs and torsion springs to adjust the yarn when in use, has low adjustment ability, cannot provide elastic support of a larger length, and has low practicality and flexibility.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a yarn tensioning mechanism for a circular knitting machine, comprising a fixed base, a movable adjustment mechanism is arranged on the top of the fixed base;

[0006] The movable adjustment mechanism comprises two sliders slidably connected to the top of the fixed base, a support seat is fixedly installed on the top of the slider, a bottom wire feeding wheel is fixedly installed between the two support seats, a mounting plate is fixedly installed on the opposite side of the two support seats, and an adjusting screw is connected to the internal thread of the mounting plate;

[0007] The bottom of the adjusting screw is rotatably connected to a fixing plate, the top of the fixing plate is fixedly installed with a limiting rod slidably connected to the mounting plate, the top of the fixed base is fixedly installed with a mounting frame, and the top of the mounting frame is provided with an adjusting tensioning assembly.

[0008] Furthermore, the adjusting tensioning assembly includes an installation box fixedly mounted on the top inner wall of the installation frame, a brake motor is fixedly mounted on the top of the installation box, a reciprocating screw rod rotatably connected to the installation box is fixedly mounted on the output shaft of the brake motor, a moving block is threadedly connected to the outer side of the reciprocating screw rod, and limit blocks slidably connected to the installation box are fixedly mounted on the left and right sides of the moving block.

[0009] Furthermore, the adjusting tensioning assembly also includes a support rod fixedly installed at the bottom of the moving block and extending to the outside of the mounting box, a mounting plate fixedly installed at the bottom of the support rod, and a top feeding wheel fixedly installed at the bottom of the mounting plate.

[0010] Furthermore, a threaded hole is provided inside the mounting plate, and the adjusting screw is threadedly connected to the mounting plate through the threaded hole.

[0011] Furthermore, a limiting groove is provided inside the mounting plate, and the limiting rod is movably connected to the mounting plate through the limiting groove.

[0012] Furthermore, the inner walls on the left and right sides of the installation box are provided with sliding grooves, and the limit block is slidably connected to the installation box through the sliding grooves.

[0013] Furthermore, a movable groove is provided at the bottom of the installation box, and the support rod is slidably connected to the installation box through the movable groove.

[0014] Furthermore, a bearing groove is provided on the top of the installation box, and the reciprocating screw rod is rotatably connected to the installation box through the bearing groove.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] The yarn tensioning mechanism for a large circular knitting machine can drive a support seat and a bottom wire feeding wheel to perform translational movement by using a sliding block through a movable adjustment mechanism, so that the yarn between the bottom wire feeding wheel and the top wire feeding wheel is tightened, and a fixing plate can be moved to fix the support seat and the bottom wire feeding wheel by using an adjusting screw and a limit rod, and the top wire feeding wheel can be driven to perform free lifting and lowering adjustment by using a brake motor and a reciprocating screw rod, so as to adjust the height and distance between the bottom wire feeding wheel and the top wire feeding wheel, thereby facilitating the adjustment of the tightness of the yarn and greatly improving the flexibility and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic cross-sectional view of the structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure in the middle;

[0019] Figure 3 It is a three-dimensional schematic diagram of the structure of the utility model.

[0020] In the figure: 1. Fixed base; 2. Sliding block; 3. Support seat; 4. Bottom wire feeding wheel; 5. Mounting plate; 6. Adjusting screw; 7. Fixed plate; 8. Limit rod; 9. Mounting frame; 10. Mounting box; 11. Brake motor; 12. Reciprocating screw; 13. Moving block; 14. Limit block; 15. Support rod; 16. Mounting seat; 17. Top wire feeding wheel. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-3 In this embodiment, a yarn tensioning mechanism for a circular knitting machine includes a fixed base 1, and a movable adjustment mechanism is arranged on the top of the fixed base 1.

[0023] In the first embodiment, the movable adjustment mechanism includes two sliders 2 which are slidably connected to the top of the fixed base 1, a support seat 3 is fixedly installed on the top of the slider 2, a bottom wire feeding wheel 4 is fixedly installed between the two support seats 3, a mounting plate 5 is fixedly installed on the opposite side of the two support seats 3, an adjusting screw 6 is threadedly connected to the internal thread of the mounting plate 5, a threaded hole is opened inside the mounting plate 5, and the adjusting screw 6 is threadedly connected to the mounting plate 5 through the threaded hole, which helps to move the adjusting screw 6.

[0024] Among them, the bottom of the adjusting screw 6 is rotatably connected to the fixed plate 7, and the top of the fixed plate 7 is fixedly installed with a limit rod 8 that is slidably connected to the mounting plate 5. A limit groove is provided inside the mounting plate 5, and the limit rod 8 is movably connected to the mounting plate 5 through the limit groove, which helps the limit rod 8 to limit the fixed plate 7. A mounting frame 9 is fixedly installed on the top of the fixed base 1.

[0025] In the second embodiment, an adjusting tensioning assembly is provided at the top of the mounting frame 9, and the adjusting tensioning assembly includes an mounting box 10 fixedly mounted on the inner wall of the top of the mounting frame 9, a brake motor 11 is fixedly mounted on the top of the mounting box 10, and a reciprocating screw 12 rotatably connected to the mounting box 10 is fixedly mounted on the output shaft of the brake motor 11, and a bearing groove is opened on the top of the mounting box 10, and the reciprocating screw 12 is rotatably connected to the mounting box 10 through the bearing groove, which helps the brake motor 11 to drive the reciprocating screw 12 to rotate, and a moving block 13 is threadedly connected to the outer side of the reciprocating screw 12, and limit blocks 14 slidably connected to the mounting box 10 are fixedly mounted on the left and right sides of the moving block 13.

[0026] Among them, sliding grooves are provided on the inner walls on the left and right sides of the installation box 10, and the limit block 14 is slidably connected to the installation box 10 through the sliding grooves, which helps the limit block 14 to limit the moving block 13. The adjustment tensioning assembly also includes a support rod 15 fixedly installed at the bottom of the moving block 13 and extending to the outside of the installation box 10. A movable groove is provided at the bottom of the installation box 10, and the support rod 15 is slidably connected to the installation box 10 through the movable groove, which helps the support rod 15 to move inside the installation box 10. A mounting seat 16 is fixedly installed at the bottom of the support rod 15, and a top feeding wheel 17 is fixedly installed at the bottom of the mounting seat 16.

[0027] It should be noted that the yarn tensioning mechanism for the circular knitting machine can drive the support seat 3 and the bottom wire feeding wheel 4 to move in translation through the movable adjustment mechanism set up, so that the yarn between the bottom wire feeding wheel 4 and the top wire feeding wheel 17 is tightened, and the adjusting screw 6 and the limit rod 8 can be used to move the fixing plate 7 to fix the support seat 3 and the bottom wire feeding wheel 4, and the brake motor 11 and the reciprocating screw rod 12 can be used to drive the top wire feeding wheel 17 to be freely raised and lowered, so as to adjust the height and distance between the bottom wire feeding wheel 4 and the top wire feeding wheel 17, so as to facilitate the adjustment of the tightness of the yarn, thereby greatly improving the flexibility and practicality of the device.

[0028] The working principle of the above embodiment is:

[0029] The yarn tensioning mechanism for a large circular knitting machine first passes the yarn body through the bottom of the bottom wire feeding wheel 4 and the top of the top wire feeding wheel 17 when in use, and the bottom wire feeding wheel 4 and the top wire feeding wheel 17 can be used to transmit the yarn, and then the support seat 3 can be pulled and slid through the slider 2, and the movement of the support seat 3 drives the bottom wire feeding wheel 4 to move, so that the bottom wire feeding wheel 4 is away from the top wire feeding wheel 17, so that the yarn between the bottom wire feeding wheel 4 and the top wire feeding wheel 17 is tightened, and then the adjusting screw 6 can be rotated to rotate, and the adjusting screw 6 moves downward inside the mounting plate 5, and the adjusting screw 6 drives the fixing plate 7 to move downward until the fixing plate 7 It is fixedly fitted on the top of the fixed base 1 to fix the support seat 3 and the bottom wire feeding wheel 4, and the brake motor 11 can also be started at the same time. The brake motor 11 drives the reciprocating screw rod 12 to rotate, and the moving block 13 on the outside of the reciprocating screw rod 12 starts to move under the action of the limit block 14. The moving block 13 moves up and down to drive the support rod 15, the mounting seat 16 and the top wire feeding wheel 17 to move up and down, so as to adjust the tension of the yarn. The brake motor 11 and the reciprocating screw rod 12 can drive the top wire feeding wheel 17 to be freely raised and lowered, which is convenient and fast to adjust, greatly improving the flexibility and practicality of the device.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A yarn tensioning mechanism for a circular knitting machine, comprising a fixed base (1), characterized in that: A movable adjustment mechanism is provided on the top of the fixed base (1); The movable adjustment mechanism comprises two sliders (2) slidably connected to the top of the fixed base (1); a support seat (3) is fixedly installed on the top of the slider (2); a bottom wire feeding wheel (4) is fixedly installed between the two support seats (3); a mounting plate (5) is fixedly installed on the opposite side of the two support seats (3); and an adjusting screw (6) is connected to the inner thread of the mounting plate (5); The bottom of the adjusting screw (6) is rotatably connected to a fixing plate (7), the top of the fixing plate (7) is fixedly mounted with a limiting rod (8) slidably connected to the mounting plate (5), the top of the fixed base (1) is fixedly mounted with a mounting frame (9), and the top of the mounting frame (9) is provided with an adjusting tensioning assembly.

2. A yarn tensioning mechanism for a circular knitting machine according to claim 1, characterized in that: The adjusting and tensioning assembly comprises an installation box (10) fixedly mounted on the top inner wall of the installation frame (9); a brake motor (11) is fixedly mounted on the top of the installation box (10); a reciprocating screw (12) rotatably connected to the installation box (10) is fixedly mounted on the output shaft of the brake motor (11); a moving block (13) is threadedly connected to the outer side of the reciprocating screw (12); and limit blocks (14) slidably connected to the installation box (10) are fixedly mounted on the left and right sides of the moving block (13).

3. A yarn tensioning mechanism for a circular knitting machine according to claim 1, characterized in that: The adjusting and tensioning assembly also includes a support rod (15) fixedly mounted at the bottom of the moving block (13) and extending to the outside of the mounting box (10), a mounting seat (16) fixedly mounted at the bottom of the support rod (15), and a top feeding wheel (17) fixedly mounted at the bottom of the mounting seat (16).

4. A yarn tensioning mechanism for a circular knitting machine according to claim 1, characterized in that: A threaded hole is provided inside the mounting plate (5), and the adjusting screw (6) is threadedly connected to the mounting plate (5) through the threaded hole.

5. The yarn tensioning mechanism for a circular knitting machine according to claim 1, characterized in that: A limiting groove is provided inside the mounting plate (5), and the limiting rod (8) is movably connected to the mounting plate (5) via the limiting groove.

6. A yarn tensioning mechanism for a circular knitting machine according to claim 2, characterized in that: Slide grooves are provided on the inner walls on the left and right sides of the installation box (10), and the limit block (14) is slidably connected to the installation box (10) via the slide grooves.

7. A yarn tensioning mechanism for a circular knitting machine according to claim 3, characterized in that: A movable groove is provided at the bottom of the installation box (10), and the support rod (15) is slidably connected to the installation box (10) via the movable groove.

8. The yarn tensioning mechanism for a circular knitting machine according to claim 2, characterized in that: A bearing groove is provided on the top of the installation box (10), and the reciprocating screw rod (12) is rotatably connected to the installation box (10) via the bearing groove.

Images