Yarn feeding mechanism of knitting machine
By using guide rollers and electric push rods in the thread entry mechanism of the knitting machine, combined with the design of the guide ring and the spring, the looseness and breakage problems caused by changes in the tension of the knitted thread are solved, and stable tension and smoothness are achieved Enter the line.
Patent Information
- Application Number
- CN202420910804.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-29
AI Technical Summary
During the thread entry process of existing knitting machines, the tension of the knitting thread is likely to change, resulting in looseness and breakage.
A knitting machine thread entry mechanism including a base, a tensioning mechanism and a guide roller are designed. By placing the thread bobbin on the rotary rod, the thread tips of the knitting thread alternately pass through the multiple groups of guide rollers to generate friction and The pulling force forms a stable tension force, and the height and guide ring limit are adjusted through the electric push rod to ensure smooth entry into the line.
It effectively avoids the tension change of knitted thread when entering the thread, reduces looseness and tension. At the same time, through the cooperation of the guide ring and the tension spring, the stable inflow of the knitted thread is ensured and excessive pulling force is avoided.
Smart Images
Figure CN222274883U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of knitting machines, in particular to a thread feeding mechanism for a knitting machine. Background Art
[0002] A knitting machine is a device used to create knitted fabrics in a semi-automatic or fully automatic manner. There are many types of knitting machines, from simple bobbins or plate templates with no moving parts to highly complex mechanisms controlled by electronic devices. However, all of them produce various types of knitted fabrics, usually flat or tubular, and with varying degrees of complexity. The pattern stitches can be selected by manually operating the needle, green buttons and dials, mechanical punch cards, or electronic pattern reading devices and computers. The yarn is processed using a thread feeding mechanism to assist in the work.
[0003] Prior art, such as publication number CN214529511U, provides a knitting machine wire feeding mechanism, including a workbench, a lower support plate is horizontally rotatably installed at the middle left of the upper surface of the workbench, a positioning rod is vertically fixedly installed at the middle of the upper surface of the lower support plate, a guide slide is vertically fixedly installed on the left side of the upper surface of the workbench, an adjustment sleeve is slidably sleeved on the guide slide, and an upper pressure plate is horizontally fixedly installed on the right side of the adjustment sleeve; a mounting groove is vertically opened at the middle right of the workbench, and a fixed sleeve rod is vertically fixedly installed in the mounting groove. The utility model uses the lower support plate, the positioning rod and the upper pressure plate in coordination, so that the winding drum passes through the positioning rod, one end of the winding drum is placed on the lower support plate, and then the sleeve is adjusted at one end according to the length of the winding drum, so that the bottom of the upper pressure plate is in close contact with the top of the winding drum, and then the positioning screw is rotated to fix the position of the adjusting sleeve, so as to complete the clamping and fixing of the winding drum, and avoid the shaking of the winding drum during the process of feeding the wire.
[0004] In this solution, the wire coiler is released by a vertical limit mode, and the telescopic support rod is extended and retracted, so that the user can adjust the upper and lower heights of the wire roller according to the wire requirements. However, in actual use, since the knitting wire is evenly arranged on the outer wall of the wire coiler, the height and angle of the knitting wire are always in a state of change during the wire feeding process, which causes the tension of the knitting wire to keep changing, and it is easy to become loose and break. In view of this, we propose a wire feeding mechanism for a knitting machine. Utility Model Content
[0005] The utility model aims to provide a thread feeding mechanism for a knitting machine, which solves the problem that the tension of the knitting thread is constantly changing, and the thread is prone to loosening and breaking.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] The knitting machine according to claim 1, wherein the first and second guide rollers are connected to each other with a thread roller of the same length and a plurality of guide rollers are connected to the thread rollers of the same length.
[0008] Preferably, the guide rollers are evenly arranged in a straight line, and the outer walls of the guide rollers are conical on both sides and inclined toward the middle of the guide rollers. By setting the guide rollers in a concave shape in the middle, the knitting thread will gradually move closer to the middle of the guide rollers when feeding, so as to reduce the amplitude of the left and right swing of the knitting thread.
[0009] Preferably, an electric push rod is connected to the top of the base, and the output end of the electric push rod is connected to the bottom of the base plate. The electric push rod is extended and retracted to facilitate adjustment of the height of the knitting thread above the base plate to facilitate adaptation to the actual required height.
[0010] Preferably, the top of the bottom plate is connected to guide bevels on both sides between the bobbin and the guide roller, and the turning position of the guide bevel corresponding to one side is rounded to guide the knitting thread to reduce the swing amplitude of the knitting thread to the left and right.
[0011] Preferably, a positioning ring is provided on the front side of the guide roller, and two sides of the positioning ring are connected to the front side of the second support plate at the corresponding position through support rods.
[0012] Preferably, a guide ring is provided on the inner wall of the positioning ring, and a circle of tension spring is connected to the position between the guide ring and the inner wall of the positioning ring. The guide ring is provided to facilitate the limiting of the position of the knitting thread so that it can be smoothly fed in, so as to avoid too large a change in the position of the thread, which would cause excessive pulling force on the knitting thread. The guide ring is connected to the inner wall of the positioning ring by a circle of tension spring, so that there is a certain displacement space even if there is a position deviation, and the elasticity of the tension spring after the displacement will assist the knitting thread to correct the position of the thread, so as to ensure smooth thread feeding.
[0013] Preferably, the inner wall of the guide ring is set as an arc, and one end of the rotating rod is threadedly connected with a limit block for limiting the position of the wire reel.
[0014] By means of the above technical solution, the utility model provides a thread feeding mechanism for a knitting machine, which has at least the following beneficial effects:
[0015] 1. The utility model sets the thread drum on the rotating rod, and then passes the thread end of the knitting thread alternately up and down between the three groups of guide rollers, so that when the knitting thread is pulled, the friction force generated by alternately passing through the multiple groups of guide rollers cooperates with the pulling force generated by the traction when the thread is fed in, so as to form a stable tensioning force, so as to avoid the tension of the knitting thread constantly changing when the thread is fed in, and prevent the knitting thread from becoming loose or broken.
[0016] 2. The utility model provides a guide ring to facilitate limiting the position of the knitting thread, so that the thread can be smoothly fed in, to avoid too large a change in the position of the thread, which would cause excessive pulling force on the knitting thread, and the guide ring is connected to the inner wall of the positioning ring through a circle of tension spring, so that there is a certain displacement space even if there is a position deviation, and the elasticity of the tension spring after the displacement will assist the knitting thread to correct the position of the thread, to ensure smooth thread feeding. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2 It is a bottom view of the utility model;
[0020] Figure 3 It is a top view of the utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the guide roller in the utility model;
[0022] Figure 5 For the utility model Figure 1 Enlarged view of A.
[0023] In the figure: 1. base; 2. tensioning mechanism; 21. electric push rod; 22. bottom plate; 221. guide bevel block; 23. first support plate; 231. rotating rod; 232. bobbin; 2321. knitting thread; 233. limit block; 24. second support plate; 241. guide roller; 242. support rod; 243. positioning ring; 244. guide ring; 245. tension spring. DETAILED DESCRIPTION
[0024] 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.
[0025] Example 1
[0026] A thread feeding mechanism for a knitting machine, such as Figure 1 - Figure 5 As shown, it includes a base 1, a tensioning mechanism 2 is arranged above the top of the base 1, and the tensioning mechanism 2 includes a bottom plate 22, the bottom plate 22 is arranged above the top of the base 1, a first support plate 23 is connected to one side of the top of the bottom plate 22, a rotating rod 231 is rotatably connected to one side of the first support plate 23, a wire drum 232 is sleeved on the outer wall of the rotating rod 231, second support plates 24 are respectively connected to the positions on both sides of the top front of the bottom plate 22, and three groups of guide rollers 24 are rotatably connected to the positions between the second support plates 24. 1. The outer wall of the thread drum 232 is wound with a knitting thread 2321, and the thread ends of the knitting thread 2321 alternately pass through the three groups of guide rollers 241 up and down in a wavy shape. By sleeved the thread drum 232 on the rotating rod 231, and then the thread ends of the knitting thread 2321 alternately pass through the three groups of guide rollers 241 up and down, when the knitting thread 2321 is pulled, the friction force generated by alternately passing through the multiple groups of guide rollers 241 cooperates with the pulling force generated by the pulling when the thread is fed, so as to form a stable tensioning force. In order to prevent the knitting thread 2321 from changing in tension and becoming loose or broken when the thread is fed in, the guide roller 241 is evenly arranged in a straight line, and the outer walls of the guide roller 241 are set in cones on both sides and tilted to the middle of the guide roller 241. By setting the guide roller 241 in a concave shape in the middle, the knitting thread 2321 will gradually move closer to the middle of the guide roller 241 when the thread is fed in, so as to reduce the amplitude of the left and right swing of the knitting thread 2321. The top of the base 1 is connected to an electric push rod 21, and the output end of the electric push rod 21 is connected to the bottom of the bottom plate 22. The electric push rod 21 is retracted to facilitate the adjustment of the height of the knitting thread 2321 above the bottom plate 22 to facilitate the actual required height. The top of the bottom plate 22 is between the bobbin 232 and the guide roller 241. The two sides are connected with guide bevel blocks 221 respectively, and the position of the turning point on the corresponding side of the guide bevel block 221 is rounded, which is used to guide the knitting thread 2321 to reduce the amplitude of the left and right swing of the knitting thread 2321.
[0027] In this embodiment, the thread reel 232 is sleeved on the rotating rod 231, and the thread end of the knitting thread 2321 is alternately passed up and down between the three groups of guide rollers 241. When the knitting thread 2321 is pulled, the friction force generated by alternately passing through the multiple groups of guide rollers 241 cooperates with the pulling force generated by the traction when the thread is fed in, so as to form a stable tensioning force, so as to avoid the knitting thread 2321 from having a constantly changing tension when the thread is fed in, causing it to become loose or broken. The electric push rod 21 is extended and retracted to facilitate the adjustment of the height of the knitting thread 2321 above the bottom plate 22, so as to adapt to the actual required height.
[0028] Example 2
[0029] like Figure 5 As shown, a positioning ring 243 is provided on the front of the guide roller 241, and both sides of the positioning ring 243 are connected to the front of the second support plate 24 at the corresponding position through the support rod 242, and a guide ring 244 is provided on the inner wall of the positioning ring 243, and a circle of tension spring 245 is connected to the position between the guide ring 244 and the inner wall of the positioning ring 243. The guide ring 244 is provided to facilitate the position of the knitted thread 2321 to be limited so that it can be smoothly fed in, so as to avoid the position of the thread being changed too much, resulting in excessive pulling force on the knitted thread 2321, and the guide ring 244 is connected to the inner wall of the positioning ring 243 by a circle of tension spring 245. Even if there is a position deviation, there is a certain displacement space, and the elasticity of the tension spring 245 after the offset will assist the knitted thread 2321 to correct the position of the thread being fed in, so as to ensure that it can be smoothly fed in, and the inner wall of the guide ring 244 is set as an arc, and one end of the rotating rod 231 is threadedly connected with a limit block 233 for limiting the thread drum 232.
[0030] In this embodiment, a guide ring 244 is provided to facilitate limiting the position of the knitted thread 2321 so that it can be smoothly fed in, thereby preventing the position of the thread from changing too much, which would cause excessive pulling force on the knitted thread 2321. The guide ring 244 is connected to the inner wall of the positioning ring 243 via a circle of tension spring 245. Even if there is a position deviation, there is a certain displacement space. After the displacement, the elasticity of the tension spring 245 will assist the knitted thread 2321 in correcting the position of the thread, thereby ensuring smooth feeding.
[0031] When the thread feeding mechanism of a knitting machine of the utility model is used, the thread drum 232 is sleeved on the rotating rod 231, and then the thread end of the knitting thread 2321 is alternately passed up and down between the three groups of guide rollers 241, so that when the knitting thread 2321 is pulled, the friction force generated by alternately passing through the multiple groups of guide rollers 241 cooperates with the pulling force generated by the traction when the thread is fed in, so as to form a stable tensioning force, so as to avoid the knitting thread 2321 from changing its tension all the time when the thread is fed in, and becoming loose or breaking, and the electric push rod 21 is extended and retracted to facilitate driving the bottom plate 22 to move upward. The height of the knitting thread 2321 can be adjusted to suit the actual required height. A guide ring 244 is provided to limit the position of the knitting thread 2321 so that it can be smoothly fed in to avoid a large change in the position of the thread, which would cause excessive pulling force on the knitting thread 2321. The guide ring 244 is connected to the inner wall of the positioning ring 243 through a circle of tension spring 245. Even if there is a position deviation, there is a certain displacement space. After the displacement, the elasticity of the tension spring 245 will assist the knitting thread 2321 to correct the position of the thread, so as to ensure smooth thread feeding.
[0032] 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.
[0033] Although the 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 thread feeding mechanism for a knitting machine, comprising a base (1), characterized in that: A tensioning mechanism (2) is arranged above the top of the base (1), and the tensioning mechanism (2) comprises a bottom plate (22), the bottom plate (22) being arranged above the top of the base (1), a first support plate (23) being connected to one side of the top of the bottom plate (22), a rotating rod (231) being rotatably connected to one side of the first support plate (23), a thread drum (232) being sleeved on the outer wall of the rotating rod (231), second support plates (24) being respectively connected to the positions on both sides of the front side of the top of the bottom plate (22), three groups of guide rollers (241) being rotatably connected to the positions between the second support plates (24), a knitting thread (2321) being wound around the outer wall of the thread drum (232), and the thread ends of the knitting thread (2321) passing alternately up and down between the three groups of guide rollers (241) in a wavy shape.
2. A thread feeding mechanism for a knitting machine according to claim 1, characterized in that: The guide rollers (241) are evenly arranged in a straight line, and both sides of the outer wall of the guide roller (241) are arranged in a conical surface and are inclined toward the middle of the guide roller (241).
3. A thread feeding mechanism for a knitting machine according to claim 1, characterized in that: The top of the base (1) is connected to an electric push rod (21), and the output end of the electric push rod (21) is connected to the bottom of the base plate (22).
4. A thread feeding mechanism for a knitting machine according to claim 1, characterized in that: Positions on both sides of the top of the bottom plate (22) between the bobbin (232) and the guide roller (241) are respectively connected to guide bevel blocks (221), and the position corresponding to the turning point on one side of the guide bevel block (221) is rounded.
5. The thread feeding mechanism of a knitting machine according to claim 1, characterized in that: A positioning ring (243) is arranged on the front side of the guide roller (241), and two sides of the positioning ring (243) are connected to the front side of the second support plate (24) at the corresponding position through support rods (242).
6. A thread feeding mechanism for a knitting machine according to claim 5, characterized in that: The inner wall of the positioning ring (243) is provided with a guide ring (244), and a coil of tension spring (245) is connected between the guide ring (244) and the inner wall of the positioning ring (243).
7. A thread feeding mechanism for a knitting machine according to claim 6, characterized in that: The inner wall of the guide ring (244) is arranged in an arc shape, and one end of the rotating rod (231) is threadedly connected with a limiting block (233) for limiting the position of the thread barrel (232).