Positive yarn feeder capable of automatically adjusting tension of yarn feeding end

Abstract

The utility model relates to a positive yarn feeder capable of automatically adjusting the tension of a yarn feeding end, which is used for conveying yarns. Comprising a shell, a main body support and a multi-layer driving yarn conveying assembly, the main body support is installed in the shell, the driving yarn conveying assembly is installed on the main body support, the driving yarn conveying assembly comprises a yarn conveying driving wheel, a yarn conveying driven wheel and a driving wheel driving part used for driving the yarn conveying driving wheel to act, and the yarn conveying driving wheel and the yarn conveying driven wheel are arranged in a matched mode; the multi-layer active yarn conveying assembly further comprises multiple layers of auxiliary yarn conveying assemblies, the auxiliary yarn conveying assemblies are installed on the shell, and the multiple layers of active yarn conveying assemblies and the multiple layers of auxiliary yarn conveying assemblies are arranged at intervals. The yarn feeder is of a multi-layer structure, by arranging the active yarn conveying assembly and the auxiliary yarn conveying assembly, the yarn outlet stability and the yarn outlet length accuracy can be effectively guaranteed, then the knitting quality of the knitting equipment is guaranteed, the use experience of a user is enhanced, and application and popularization of the yarn feeder in the technical field of the knitting equipment are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of knitting equipment, in particular to an active yarn feeder which can automatically adjust the tension of a yarn feed end. Background Art

[0002] The yarn feeder is a device in textile machinery that is used to lead the yarn from the yarn channel of the spinning machine and send it to the loom or other process equipment. It is usually made of metal and has a long cylindrical shape. One end is connected to the yarn channel of the spinning machine, and the other end leads the yarn and guides the yarn to the loom for weaving through the yarn guide device. The function of the yarn feeder is to maintain the tension and stability of the yarn so that the yarn can be smoothly delivered to the loom to ensure the normal progress of the weaving process.

[0003] The yarn feeder usually uses the main motor to rotate the driving wheel and the driven wheel to transport the yarn. At the same time, the encoder installed on the main motor is used to calculate the number of turns of the driving wheel to obtain the length of the transported yarn; the yarn transported by the driving wheel passes through the tension adjustment device and finally enters the computer flat knitting machine and other knitting equipment for weaving. Since the above structure is provided with a tension adjustment device, it can basically ensure that the tension of the yarn (that is, the yarn transported to the computer flat knitting machine and other knitting equipment) is consistent. However, in actual use, because the knitting equipment uses the yarn at times, it will slow down or stop or reverse suddenly when transporting the yarn (the yarn is quickly retracted), and the problem of inaccurate length of the transported yarn often occurs. The amount of recovered yarn varies and they are often piled together. Moreover, since these yarns are not taut (although many knitting equipment have antenna racks to pass the yarn, and also have swing arms to recover the yarn by swinging at an angle, the swing range needs to be adjusted manually, and it is fixed after adjustment and cannot be changed at any time according to actual conditions. In addition, the recovered yarn is also limited, and a little more will not work), it will affect the next yarn feeding, thus resulting in inaccurate calculation of the length of the conveyed yarn, affecting the knitting quality of the knitting equipment, and then affecting the user experience, which is not conducive to the promotion and application of the above-mentioned yarn feeder in the field of knitting equipment technology. Utility Model Content

[0004] In order to overcome the defects in the above-mentioned prior art, the utility model provides an active yarn feeder which can automatically adjust the tension of the yarn feeding end. The active yarn feeder has an ingenious structure and can effectively ensure the stability of the yarn output and the accuracy of the yarn output length, thereby ensuring the knitting quality of the knitting equipment, enhancing the user experience, and being conducive to the promotion and application of the above-mentioned yarn feeder in the field of knitting equipment technology.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: an active yarn feeder that can automatically adjust the tension of the yarn feeding end, used for conveying yarn; comprising a shell, a main body bracket and a multi-layer active yarn feeding assembly, the main body bracket is installed in the shell, the active yarn feeding assembly is installed on the main body bracket, the active yarn feeding assembly comprises a yarn feeding driving wheel, a yarn feeding driven wheel and a driving wheel driving member for driving the yarn feeding driving wheel to move, the yarn feeding driving wheel and the yarn feeding driven wheel are arranged in cooperation; also comprising a multi-layer auxiliary yarn feeding assembly, the auxiliary yarn feeding assembly is installed on the shell, and the multi-layer active yarn feeding assembly and the multi-layer auxiliary yarn feeding assembly are arranged at intervals.

[0006] As a preferred solution of the utility model, the active yarn feeding component and the auxiliary yarn feeding component are both double-layered.

[0007] As a preferred solution of the utility model, the auxiliary yarn feeding assembly includes an auxiliary yarn passing wheel, an adjusting rocker rod and a rocker rod driving component for driving the adjusting rocker rod to swing. The auxiliary yarn passing wheel is arranged close to the adjusting rocker rod, one end of the adjusting rocker rod is installed on the output end of the rocker rod driving component, and the other end is provided with a yarn guide ring for the yarn to pass through.

[0008] As a preferred solution of the utility model, a yarn feeding ring for the yarn to pass through is installed on the shell located above the active yarn feeding assembly.

[0009] As a preferred solution of the utility model, the yarn feeding ring is installed on a mounting support plate, and the mounting support plate is provided with a through hole for the yarn to pass through.

[0010] As a preferred solution of the utility model, a yarn passing ring is installed on the main body bracket below the yarn feeding driven wheel.

[0011] As a preferred solution of the utility model, the yarn feeding active wheel sleeve is provided with an anti-wear ring; the yarn feeding active wheel includes an active meshing part and an active yarn feeding part, the yarn feeding driven wheel includes a driven meshing part and a driven yarn feeding part, the active meshing part and the driven meshing part are meshed with each other; the anti-wear ring sleeve is arranged outside the active yarn feeding part.

[0012] As a preferred solution of the utility model, a baffle ring is provided between the active meshing portion and the active yarn feeding portion; and a yarn baffle plate is provided at the driven yarn feeding portion.

[0013] As a preferred solution of the utility model, the adjusting rocker comprises a rocker mounting portion, a rocker body and a yarn ring mounting portion, and the rocker mounting portion and the yarn ring mounting portion are formed at two ends of the rocker body.

[0014] As a preferred solution of the present utility model, the shell is a split structure, including a shell one and a shell two, and the shell one can be detachably installed on the shell two.

[0015] Compared with the prior art, the beneficial effects of the utility model are: an active yarn feeder in the utility model which can automatically adjust the tension of the yarn feeding end, the yarn feeder has a multi-layer structure, and by arranging an active yarn feeding component and an auxiliary yarn feeding component, it can effectively ensure the stability of the yarn output and the accuracy of the yarn output length, thereby ensuring the knitting quality of the knitting equipment, enhancing the user experience, and being conducive to the promotion and application of the above-mentioned yarn feeder in the field of knitting equipment technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an active yarn feeder capable of automatically adjusting the tension of the yarn feed end in an embodiment;

[0017] Figure 2 It is a schematic diagram of the structure disassembly of an active yarn feeder capable of automatically adjusting the tension of the yarn feeding end in an embodiment;

[0018] Figure 3 2 is a schematic diagram of the structure of the yarn feeding driving wheel in the embodiment;

[0019] Figure 4 2 is a schematic diagram of the structure of the yarn conveying driven wheel in the embodiment;

[0020] Figure 5 Schematic diagram of the structure of the adjusting swing rod in the embodiment.

[0021] Figure numerals: 1, shell; 1-1, shell one; 1-2, shell two; 2, main body bracket; 3, yarn; 4, yarn feeding ring; 5, yarn feeding active wheel; 5-1, active meshing part; 5-2, active yarn feeding part; 5-3, baffle ring; 6, yarn feeding driven wheel; 6-1, driven meshing part; 6-2, driven yarn feeding part; 6-3, yarn baffle plate; 7, adjusting rocker; 7-1, rocker mounting part; 7-2, rocker body; 7-3, yarn ring mounting part; 8, auxiliary yarn passing wheel; 9, yarn guide ring; 10, yarn passing ring; 11, anti-wear ring; 12, rocker driving part; 13, mounting support plate; 14, driving wheel driving part. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described below by specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0024] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0025] Example: Figures 1 to 5 As shown, an active yarn feeder that can automatically adjust the tension of the yarn feeding end is mainly used to transport yarn 3 and ensure the accuracy of the length of yarn 3 during the transportation process, thereby reducing the probability of yarn 3 becoming loose and ensuring the knitting quality of the knitting equipment. The active yarn feeder in this embodiment is mainly composed of a shell 1, a main body bracket 2, a multi-layer active yarn feeding assembly and a multi-layer auxiliary yarn feeding assembly. In order to facilitate disassembly, maintenance and overhaul, the shell 1 in this embodiment is a split structure, that is, the shell 1 can be split into shell one 1-1 and shell two 1-2, and the above-mentioned shell one 1-1 can be detachably installed on the above-mentioned shell two 1-2 through other connecting parts such as bolts and screws. In order to ensure the stability of the yarn feeder during the yarn feeding process, and at the same time ensure the service life of each component and reduce the user's use cost, the above-mentioned main body bracket 2 is installed in the above-mentioned shell 1, and the above-mentioned active yarn feeding assembly is installed on the above-mentioned main body bracket 2.

[0026] The active yarn feeding assembly in this embodiment includes a yarn feeding active wheel 5, a yarn feeding driven wheel 6, and an active wheel driving member 14 for driving the yarn feeding active wheel 5 to move. The active wheel driving member 14 is a motor, which has the advantages of high efficiency, high torque, high responsiveness, no pollution and low noise, easy control and integration, and renewable energy utilization. The yarn feeding active wheel 5 is arranged in coordination with the yarn feeding driven wheel 6, that is, the yarn feeding active wheel 5 is driven by the active wheel driving member 14, and then the yarn feeding driven wheel 6 is driven to rotate by the yarn feeding active wheel 5, thereby realizing the conveying of the yarn 3.

[0027] In order to reduce the probability of yarn 3 breaking during transportation, in this embodiment, an anti-wear ring 11 is provided on the outer cover of the yarn feeding active wheel 5. The anti-wear ring 11 is made of rubber material. Rubber has good wear resistance and can reduce the damage to the yarn 3 caused by friction and wear. As a protective component, the anti-wear ring 11 can form a rubber protective layer on the contact surface to reduce the direct contact between the yarn feeding active wheel 5 and the yarn 3, thereby reducing the wear and damage of the yarn 3 caused by the yarn feeding active wheel 5. The yarn feeding active wheel 5 includes an active meshing part 5-1 and an active yarn feeding part 5-2, and the yarn feeding driven wheel 6 includes a driven meshing part 6-1 and a driven yarn feeding part 6-2. The active meshing part 5-1 and the driven meshing part 6-1 are meshed with each other; the anti-wear ring 11 is sleeved outside the active yarn feeding part 5-2. In order to prevent the yarn 3 from passing through the active meshing portion 5-1, a retaining ring 5-3 is provided between the active meshing portion 5-1 and the active yarn feeding portion 5-2. The retaining ring 5-3 can also enable the yarn 3 to be transported along a predetermined path and speed, thereby maintaining stable transportation of the yarn 3, avoiding accumulation and confusion of the yarn 3, and improving transportation efficiency and quality. Similarly, in order to further enable the yarn 3 to be transported along a predetermined path and speed, a yarn retaining plate 6-3 is provided at the passive yarn feeding portion 6-2. The yarn retaining plate 6-3 can also adjust the tension of the yarn 3 by contacting the yarn 3, thereby ensuring the yarn feeding effect.

[0028] The auxiliary yarn feeding assembly includes an auxiliary yarn wheel 8, an adjusting swing rod 7 and a swing rod driving member 12 for driving the adjusting swing rod 7 to swing. The auxiliary yarn wheel 8 is arranged close to the adjusting swing rod 7. One end of the adjusting swing rod 7 is installed at the output end of the swing rod driving member 12, and the other end is provided with a yarn guide ring 9 for the yarn 3 to pass through. The swing rod driving member 12 is a voice coil motor, which is an electromagnetic vibrator composed of a voice coil and a magnetic field. When the voice coil is energized, the current will generate a magnetic field around the voice coil. The interaction with the magnetic field will cause the voice coil to be affected by electromagnetic force, thereby generating mechanical vibration, and then driving the adjusting swing rod 7 to change the position of the adjusting swing rod 7, thereby changing the tension of the yarn 3. Specifically, the adjusting swing rod 7 includes a swing rod mounting portion 7-1, a swing rod body 7-2 and a yarn ring mounting portion 7-3, wherein the swing rod mounting portion 7-1 and the yarn ring mounting portion 7-3 are formed at both ends of the swing rod body 7-2, the swing rod mounting portion 7-1 is used to be mounted at the output end of the swing rod driving member 12, and the yarn ring mounting portion 7-3 is used to mount the yarn guide ring 9. The swing rod body 7-2 is arranged in a rod shape as a whole.

[0029] In order to ensure the yarn feeding effect, a yarn feeding ring 4 for the yarn 3 to pass through is installed on the housing 1 located above the active yarn feeding assembly. In order to facilitate the installation of the yarn feeding ring 4, a mounting support plate 13 is installed on the housing 1, and the yarn feeding ring 4 is then installed on the mounting support plate 13, and the mounting support plate 13 is provided with a through hole for the yarn 3 to pass through. In order to further ensure the yarn feeding effect, a yarn passing ring 10 is installed on the main body bracket 2 located below the yarn feeding driven wheel 6.

[0030] In order to ensure the tension of the yarn 3 during the conveying process, in this embodiment, the auxiliary yarn feeding assembly is installed on the shell 1, and the multiple layers of the active yarn feeding assembly and the multiple layers of the auxiliary yarn feeding assembly are arranged at intervals. Specifically, the active yarn feeding assembly and the auxiliary yarn feeding assembly are designed as two layers, a total of four layers, that is, the first layer is the active yarn feeding assembly, the second layer is the auxiliary yarn feeding assembly, the third layer is the active yarn feeding assembly, and the fourth layer is the auxiliary yarn feeding assembly. Specifically, the conveying process of the yarn 3 is: the yarn 3 enters from the yarn feeding ring 4 located at the top, and is output from the yarn guide ring 9 on the adjusting rocker 7 in the auxiliary yarn feeding assembly located on the fourth layer. The rocker driving member 12 located on the fourth layer, that is, the voice coil motor, adjusts the adjusting rocker 7 at any time, so that the adjusting rocker 7 swings up and down, to stabilize the tension of the output yarn 3 within a required range. The circumferential surfaces of the yarn feeding active wheel 5 and the yarn feeding driven wheel 6 located on the third layer are tightly matched to compress the yarn 3 under the action of the adjusting rocker 7 located on the fourth layer, so as to transport the yarn 3. In this process, the yarn feeding active wheel 5 and the yarn feeding driven wheel 6 are meshed and matched, thereby ensuring that the yarn feeding active wheel 5 and the yarn feeding driven wheel 6 will not slip. The anti-wear ring 11 on the yarn feeding active wheel 5 increases the friction with the yarn 3 to ensure that the yarn 3 will not slip. The motor located on the third layer is a servo motor with a magnetic braid at the tail, and the length of the transported yarn can be obtained by recording the number of rotations of the motor. The motor, the yarn feeding active wheel 5 and the yarn feeding driven wheel 6 located on the first layer have the same principle as the motor, the yarn feeding active wheel 5 and the yarn feeding driven wheel 6 located on the third layer. The stability of the yarn tension entering the yarn passing ring 10 located on the third layer can be ensured by controlling the adjusting rocker 7 through the voice coil motor. When the yarn 3 needs to be recovered, the motor-driven yarn feeding active wheel 5 and the yarn feeding driven wheel 6 located on the first layer can respond quickly, thereby ensuring the accuracy of the yarn feeding length and the stability during the yarn output process.

[0031] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0032] Although this article uses more of the following terms: 1, housing; 1-1, housing 1; 1-2, housing 2; 2, main body bracket; 3, yarn; 4, yarn feeding ring; 5, yarn feeding active wheel; 5-1, active meshing part; 5-2, active yarn feeding part; 5-3, baffle ring; 6, yarn feeding driven wheel; 6-1, driven meshing part; 6-2, driven yarn feeding part; 6-3, baffle plate; 7, adjusting swing rod; 7-1, swing rod mounting part; 7-2, swing rod body; 7-3, yarn ring mounting part; 8, auxiliary yarn passing wheel; 9, yarn guide ring; 10, yarn passing ring; 11, anti-wear ring; 12, swing rod driving part; 13, mounting support plate; 14, driving wheel driving part, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An active yarn feeder capable of automatically adjusting the tension of the yarn feed end, characterized in that: Used for conveying yarn (3); comprising a shell (1), a main body bracket (2) and a multi-layer active yarn feeding assembly, wherein the main body bracket (2) is mounted in the shell (1), the active yarn feeding assembly is mounted on the main body bracket (2), the active yarn feeding assembly comprises a yarn feeding active wheel (5), a yarn feeding driven wheel (6) and an active wheel driving member (14) for driving the yarn feeding active wheel (5), the yarn feeding active wheel (5) and the yarn feeding driven wheel (6) being arranged in cooperation; and further comprising a multi-layer auxiliary yarn feeding assembly, wherein the auxiliary yarn feeding assembly is mounted on the shell (1), and the multi-layer active yarn feeding assembly and the multi-layer auxiliary yarn feeding assembly are arranged at intervals.

2. The active yarn feeder capable of automatically adjusting the yarn feeding end tension according to claim 1, characterized in that: The active yarn feeding component and the auxiliary yarn feeding component are both double-layered.

3. The active yarn feeder capable of automatically adjusting the tension of the yarn feed end according to claim 1, characterized in that: The auxiliary yarn feeding assembly comprises an auxiliary yarn passing wheel (8), an adjusting swing rod (7) and a swing rod driving member (12) for driving the adjusting swing rod (7) to swing; the auxiliary yarn passing wheel (8) is arranged close to the adjusting swing rod (7); one end of the adjusting swing rod (7) is mounted on the output end of the swing rod driving member (12); and the other end is provided with a yarn guide ring (9) for the yarn (3) to pass through.

4. The active yarn feeder capable of automatically adjusting the tension of the yarn feed end according to claim 1, characterized in that: A yarn feeding ring (4) for the yarn (3) to pass through is installed on the housing (1) located above the active yarn feeding assembly.

5. The active yarn feeder capable of automatically adjusting the tension of the yarn feed end according to claim 4, characterized in that: The yarn feeding ring (4) is mounted on a mounting support plate (13), and the mounting support plate (13) is provided with a through hole for the yarn (3) to pass through.

6. The active yarn feeder capable of automatically adjusting the tension of the yarn feed end according to claim 1, characterized in that: A yarn passing ring (10) is installed on the main body bracket (2) located below the yarn feeding driven wheel (6).

7. The active yarn feeder capable of automatically adjusting the yarn feeding end tension according to claim 1, characterized in that: The yarn feeding active wheel (5) is sleeved with an anti-wear ring (11); the yarn feeding active wheel (5) comprises an active meshing portion (5-1) and an active yarn feeding portion (5-2); the yarn feeding driven wheel (6) comprises a driven meshing portion (6-1) and a driven yarn feeding portion (6-2); the active meshing portion (5-1) and the driven meshing portion (6-1) are meshed with each other; the anti-wear ring (11) is sleeved outside the active yarn feeding portion (5-2).

8. The active yarn feeder capable of automatically adjusting the tension of the yarn feed end according to claim 7, characterized in that: A stop ring (5-3) is provided between the active meshing portion (5-1) and the active yarn feeding portion (5-2); and a yarn stop plate (6-3) is provided at the driven yarn feeding portion (6-2).

9. The active yarn feeder capable of automatically adjusting the tension of the yarn feed end according to claim 3, characterized in that: The regulating swing rod (7) comprises a swing rod mounting portion (7-1), a swing rod main body (7-2) and a yarn ring mounting portion (7-3); the swing rod mounting portion (7-1) and the yarn ring mounting portion (7-3) are formed at two ends of the swing rod main body (7-2).

10. The active yarn feeder capable of automatically adjusting the tension of the yarn feed end according to claim 1, characterized in that: The shell (1) is a split structure, comprising a shell one (1-1) and a shell two (1-2), wherein the shell one (1-1) can be detachably mounted on the shell two (1-2).

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