Disc needle bar mechanism of knitting machine

Abstract

The utility model provides a disc needle bar mechanism of a knitting machine, which belongs to the technical field of knitting machines, the knitting machine comprises a machine frame, a power shaft is rotatably arranged on the machine frame, the disc needle bar mechanism comprises a disc needle bar, a flange bearing seat, a ball screw, a ball nut, a first swing rod and a second swing rod, the disc needle bar comprises a linkage shaft part, and the linkage shaft part comprises a linkage shaft. The universal driving shaft part is connected with the ball screw through the flange bearing seat, the universal driving shaft part and the ball screw are rotationally arranged relative to the flange bearing seat, the ball nut is fixed to the rack and matched with the ball screw, the first swing rod is arranged on the universal driving shaft part and used for driving the universal driving shaft part to rotate, and the second swing rod is arranged on the rack and used for driving the universal driving shaft part to rotate. The second swing rod is arranged on the ball screw and used for driving the ball screw to rotate. According to the utility model, the disc needle rod can realize high-speed up-and-down rotation and left-and-right translation at the same time, and the stability and smoothness of the action process are excellent.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of knitting machine, concretely relates to a needle disc rod mechanism of knitting machine. BACKGROUND

[0002] The knitting machine is a kind of mechanical equipment specially used for producing knitted fabric, and is widely applied to textile industry.Its working principle is to use yarn to weave elastic and soft fabric through the cooperation of a series of needles and hooks.The knitting machine can be divided into different types such as flat knitting machine and circular knitting machine according to its structure and operation mode, and is suitable for different knitted products, such as T-shirt, sweater and sportswear, etc.

[0003] The traditional knitting machine includes rack, power system and needle disc rod mechanism, wherein the needle disc rod mechanism includes needle disc rod, and the needle disc rod needs to rotate up and down and translate left and right at high speed when the knitting machine operates, however, the stability of needle disc rod action in the needle disc rod mechanism is poor at present, so it is urgent to design a stable and reliable needle disc rod mechanism. SUMMARY

[0004] The utility model aims at overcoming the shortcomings and deficiencies of prior art, and provides a needle disc rod mechanism of knitting machine.

[0005] The technical scheme adopted by the utility model is as follows: the application provides a needle disc rod mechanism of knitting machine, the knitting machine includes rack, power shaft is rotationally arranged on the rack, the needle disc rod mechanism includes needle disc rod, flange bearing seat, ball screw, ball nut, first swing rod and second swing rod, the needle disc rod includes linkage shaft part, the linkage shaft part is connected by flange bearing seat and ball screw, the linkage shaft part and ball screw are rotationally arranged relative to flange bearing seat, the ball nut is fixed on the rack and cooperates with ball screw, the first swing rod is arranged on the linkage shaft part and is used to drive the linkage shaft part to rotate, the second swing rod is arranged on the ball screw and is used to drive the ball screw to rotate, and the power shaft is used to drive the first swing rod and the second swing rod to swing, so that the needle disc rod rotates up and down and translates left and right simultaneously.

[0006] In some embodiments, first eccentric wheel and second eccentric wheel are arranged on the power shaft, first swing arm is rotationally arranged on the first eccentric wheel, one end of the first swing arm away from the first eccentric wheel is rotationally connected with the first swing rod, second swing arm is rotationally arranged on the second eccentric wheel, and one end of the second swing arm away from the second eccentric wheel is rotationally connected with the second swing rod.

[0007] In some embodiments, long-circular connecting hole is arranged on the first swing rod and the second swing rod, bearing body is arranged on one end of the first swing arm and the second swing arm close to the needle disc rod, and through hole is arranged in the center of the bearing body.

[0008] In some embodiments, both ends of the disc needle rod are the linkage shaft parts, and corresponding linkage shaft parts are provided with track seats on the frame, and the linkage shaft parts are rotationally and slidably arranged relative to the track seats.

[0009] In some embodiments, the flange bearing seat comprises a first flange plate and a second flange plate connected to each other, the linkage shaft part and the first flange plate are connected through a bearing, and the ball screw comprises a connecting shaft part, and the connecting shaft part and the second flange plate are connected through a bearing.

[0010] In some embodiments, the first flange plate and the second flange plate are circular and one of them has a notch.

[0011] In some embodiments, the frame is provided with a fixing seat, and the ball nut is arranged on the fixing seat.

[0012] The disc needle rod in the utility model can realize simultaneous high-speed rotation up and down and translation left and right, and the stability and smoothness of the action process are excellent. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings obtained according to these drawings without creative labor still belong to the scope of the utility model.

[0014] Figure 1 It is a schematic view of the frame, the power shaft and the disc needle rod mechanism in the utility model;

[0015] Figure 2 It is a schematic view of the frame, the power shaft and the disc needle rod mechanism in the utility model; Figure 1 It is an enlarged view of A in the utility model;

[0016] Figure 3 It is a partial schematic view of the disc needle rod mechanism in the utility model Figure 1 ;

[0017] Figure 4 It is a partial schematic view of the disc needle rod mechanism in the utility model Figure 2 ;

[0018] Figure 5 It is a partial schematic view of the disc needle rod mechanism in the utility model Figure 3 . DETAILED DESCRIPTION

[0019] The following description provides specific applications and requirements of the present specification, in order to enable a person skilled in the art to make and use the content of the present specification. Various local modifications of the disclosed embodiments are obvious to those skilled in the art, and the general principles defined herein can be applied to other embodiments and applications without departing from the spirit and scope of the present specification. Therefore, the present specification is not limited to the embodiments shown, but is consistent with the widest scope of the claims.

[0020] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "radial", "length", "width", "thickness", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a particular orientation, or to be constructed and operated in a particular orientation.

[0021] Secondly, the terms "first", "second" and similar words do not represent any order, quantity or importance, but are only used to distinguish different components, and should not be understood as a limitation on the embodiments of the present application.

[0022] In addition, the terms "mount", "set", "provided with", "connected", "connected" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components.

[0023] For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] With regard to the drawings of the present application, it should be clearly understood that the drawings are for illustrative and descriptive purposes only, and are not intended to limit the scope of the present specification. It should also be understood that the drawings are not necessarily drawn to scale.

[0025] The knitting machine comprises a frame 1 and a power system, which comprises a power shaft 2 rotatably arranged on the frame 1 and a power source. The other structures of the knitting machine are not the protection scheme of the present application, and therefore are not described in detail. It is only necessary to know that when the knitting machine is running, the power shaft rotates, and the disc needle rod is driven to rotate up and down and translate left and right at high speed.

[0026] As Figures 1 to 5As shown in the description, a needle disc rod mechanism of a knitting machine is provided, which comprises a needle disc rod 3, a flange bearing seat 4, a ball screw 5, a ball nut 6, a first swing rod 7 and a second swing rod 8. The needle disc rod 3 comprises a linkage shaft part 30, specifically, the two ends of the needle disc rod 3 are the linkage shaft part 30, preferably a round shaft, and the middle part of the needle disc rod 3 is a square rod part, on which a plurality of needle grooves are uniformly arranged. A track seat 15 is arranged on the frame 1 corresponding to the linkage shaft part 30. The linkage shaft part 30 is rotatably and slidably arranged relative to the track seat 15. Simply, the track seat 15 can be a sleeve with a smooth inner ring, and of course, a bearing can be arranged in the sleeve for connection with the linkage shaft part 30.

[0027] The linkage shaft part 30 is connected with the flange bearing seat 4 and the ball screw 5. The linkage shaft part 30 and the ball screw 5 are rotatably arranged relative to the flange bearing seat 4. Specifically, as shown in the description, Figure 5 The flange bearing seat 4 comprises a first flange plate 41 and a second flange plate 42 connected with each other. A plurality of connecting through holes are arranged on the first flange plate 41 and the second flange plate 42 corresponding to each other, by which riveting or bolt connection can be performed. The linkage shaft part 30 is connected with the first flange plate 41 through a bearing. The ball screw 5 comprises a connecting shaft part 50, which is connected with the second flange plate 42 through a bearing. In this way, the needle disc rod 3 and the ball screw 5 can rotate independently.

[0028] Further, the first flange plate 41 and the second flange plate 42 are one circular and the other is a circular with a notch, as shown in the description. Figure 5

[0029] The ball nut 6 is fixed on the frame 1 and cooperates with the ball screw 5. Specifically, a fixing seat 16 is arranged on the frame 1, and the ball nut 6 is arranged on the fixing seat 16.

[0030] The first swing rod 7 is arranged on the linkage shaft part 30 and is used to drive the linkage shaft part 30 to rotate. The second swing rod 8 is arranged on the ball screw 5 and is used to drive the ball screw 5 to rotate. The power shaft 2 is used to drive the first swing rod 7 and the second swing rod 8 to swing respectively, so that the needle disc rod 3 rotates up and down and translates left and right at the same time. Through this mechanism, the needle disc rod 3 realizes high-speed rotation up and down and translation left and right, and the stability and smoothness of the action process are excellent.

[0031] ​The linkage structure between the power shaft 2 and the disc needle rod 3 is as follows: the power shaft 2 is provided with a first eccentric wheel 9 and a second eccentric wheel 10, the first eccentric wheel 9 is rotatably provided with a first swing arm 11, one end of the first swing arm 11 away from the first eccentric wheel 9 is rotatably connected with the first swing rod 7, the second eccentric wheel 10 is rotatably provided with a second swing arm 12, one end of the second swing arm 12 away from the second eccentric wheel 10 is rotatably connected with the second swing rod 8, as shown in Figure 2 The direction in which the first swing arm 11 is rotatably arranged relative to the first eccentric wheel 9 and the direction in which the second swing arm 12 is rotatably arranged relative to the second eccentric wheel 10 are different from the direction in which the first swing arm 11 and the first swing rod 7 are rotatably arranged and the direction in which the second swing arm 12 and the second swing rod 8 are rotatably arranged. The former can be regarded as rotating in a horizontal plane, but the horizontal plane will change according to the rotation of the corresponding eccentric wheel. The latter is regarded as rotating in a vertical plane. It can be understood that the rotatable arrangement of the former is to avoid interfering with the left and right movement of the disc needle rod 3.

[0032] In some embodiments, the first swing rod 7 and the second swing rod 8 are provided with an oblong connecting hole 13, the first swing arm 11 and the second swing arm 12 are provided with a bearing body 14 at one end close to the disc needle rod 3, the bearing body 14 is provided with a through hole 140 in the center, and the corresponding swing rod and swing arm can be rotatably connected by a fastening assembly and have adjustability.

[0033] The specific working principle of the above mechanism is as follows: when the power shaft 2 rotates, the first eccentric wheel 9 is driven to rotate, the first swing rod 8 is driven to swing back and forth by the first swing arm 11 as required, so that the disc needle rod 3 rotates by a certain angle up and down. At the same time that the power shaft 2 rotates, the second eccentric wheel 10 is also driven to rotate, the second swing rod 8 is driven to swing slightly by the second swing arm 12. At this time, since the ball nut 6 is fixed, the ball screw 5 will rotate and translate left and right at the same time. When the rotating energy reaches the flange bearing seat 4, the disc needle rod 3 and the ball screw 5 can rotate independently, the rotating energy is unloaded, and the rotation of the disc needle rod 3 will not be affected. However, the translation of the ball screw 5 will normally drive the disc needle rod 3 to translate left and right.

[0034] In summary, after reading the detailed disclosure, those skilled in the art can understand that the foregoing detailed disclosure can be presented only in an exemplary manner and can not be limiting. Although it is not explicitly stated here, those skilled in the art can understand that the present application requires to encompass various reasonable changes, improvements and modifications to the embodiments. These changes, improvements and modifications are intended to be proposed by the present application and are within the spirit and scope of the exemplary embodiments of the present application.

[0035] Furthermore, it is to be understood that the application can be carried out by specifically advantageous embodiments, of which the following gives an illustration. In the preceding description of embodiments of the application, for purposes of simplicity, the application has combined in a single embodiment various features in order to aid in understanding one feature. None of these combinations, however, is necessary, and one skilled in the art will be able to find variations of one feature that will work with the other features when the application is read with common knowledge in mind. That is, the embodiments of the application can also be understood as integrations of multiple sub-embodiments, each of which is valid when less than all of the features of a single previously disclosed embodiment.

[0036] Finally, it is to be understood that the embodiments of the application disclosed herein are illustrative of the principles of the present application. Other modifications that are obvious to those skilled in the art are intended to be within the scope of the application. The application described is intended to cover any and all modifications of the application within the scope of the claims, now known or later developed. Thus, the application is not limited to the embodiments described in detail herein, but includes all embodiments that are within the scope of the appended claims.

Claims

1. A disc needle bar mechanism of a knitting machine comprising a frame on which a power shaft is rotatably provided, characterized in that, The disc needle rod mechanism comprises a disc needle rod, a flange bearing seat, a ball screw, a ball nut, a first swing rod and a second swing rod, the disc needle rod comprises a linkage shaft part, the linkage shaft part is connected through the flange bearing seat and the ball screw, the linkage shaft part and the ball screw are both rotationally arranged relative to the flange bearing seat, the ball nut is fixed on the rack and cooperates with the ball screw, the first swing rod is arranged on the linkage shaft part and is used for driving the linkage shaft part to rotate, the second swing rod is arranged on the ball screw and is used for driving the ball screw to rotate, and the power shaft is used for driving the first swing rod and the second swing rod to swing respectively, so that the disc needle rod rotates upward and downward and translates leftward and rightward simultaneously.

2. A disc needle bar mechanism for a knitting machine according to claim 1, wherein, The power shaft is provided with a first eccentric wheel and a second eccentric wheel, the first swing arm is rotationally arranged on the first eccentric wheel, one end of the first swing arm away from the first eccentric wheel is rotationally connected with the first swing rod, the second swing arm is rotationally arranged on the second eccentric wheel, and one end of the second swing arm away from the second eccentric wheel is rotationally connected with the second swing rod.

3. A disc needle bar mechanism for a knitting machine according to claim 2, wherein, The first swing rod and the second swing rod are provided with long-circular connecting holes, the first swing arm and the second swing arm are provided with bearing bodies at one end close to the disc needle rod, and the bearing bodies are provided with through holes in the centers.

4. A disc needle bar mechanism for a knitting machine according to claim 1, wherein, Both ends of the disc needle rod are the linkage shaft parts, the rack is provided with a track seat corresponding to the linkage shaft parts, and the linkage shaft parts are rotationally and slidably arranged relative to the track seat.

5. A disc needle bar mechanism for a knitting machine according to claim 1, wherein, The flange bearing seat comprises a first flange plate and a second flange plate connected with each other, the linkage shaft part and the first flange plate are connected through a bearing, and the ball screw comprises a connecting shaft part, the connecting shaft part and the second flange plate are connected through a bearing.

6. A disc needle bar mechanism for a knitting machine according to claim 5, wherein, The first flange plate and the second flange plate are circular and circular with a notch respectively.

7. A disc needle bar mechanism for a knitting machine according to claim 1, wherein, The rack is provided with a fixing seat, and the ball nut is arranged on the fixing seat.

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