Flat knitting machine and knitting machine

Abstract

The present invention provides a flat knitting machine and a knitting machine, comprising a frame, a driving unit, a linkage mechanism, a thread passing mechanism, a roller mechanism and a thread passing pulley swinging mechanism. The roller mechanism autonomously drives the yarn to be conveyed, effectively avoiding the risk of the yarn breaking when conveying through the flat knitting machine, thereby improving the production efficiency. The triangular positioning frame and the thread passing mechanism can reasonably guide the direction of the yarn, and the triangular arrangement reduces the space occupied, while also achieving the effect of winding and adjusting the tightness of the yarn. A roller pressing sleeve is installed on one side of each roller of the roller mechanism, and the tightness of the yarn on the roller can be adjusted by the roller pressing sleeve and the pressing sheet, which is convenient for conveying the yarn and improving the production efficiency. The thread passing pulley swinging mechanism can control the action of the driving unit when swinging and weaving through the micro-switch, so that the roller mechanism rotates, driving the yarn to rotate.

Description

Technical Field

[0001] The invention relates to the field of knitting equipment, in particular to a flat knitting machine and a knitting machine. Background Art

[0002] A knitting machine is a mechanical structure that transports yarns and performs weaving. However, when transporting yarns, existing knitting machines pull the yarns passively, which makes the yarns prone to stress concentration, which in turn causes the yarns to break during transport, greatly affecting the efficiency of weaving. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a flat knitting machine and a knitting machine, which solve the problem that the flat knitting machine is prone to breakage when conveying yarn.

[0004] To achieve the above-mentioned purpose, the inventor provides a knitting machine and a knitting machine, comprising a frame, a driving unit, a linkage mechanism, a thread passing mechanism, a roller mechanism and a thread passing pulley swinging mechanism. The driving unit is fixedly arranged on the frame, one end of the roller mechanism is rotatably arranged on the frame, and the linkage mechanism drives and connects the driving unit with one end of the roller mechanism. The thread passing pulley swinging mechanism is arranged on one side of the roller mechanism and is arranged on the frame, and the roller mechanism is used to roll and convey the yarn when the thread passing pulley swinging mechanism swings; one end of the thread passing mechanism is arranged on the frame, and the thread passing mechanism is used to guide the direction of the yarn and is arranged on the frame.

[0005] The roller mechanism comprises a first roller and a second roller, the first roller and the second roller are rotatably arranged on a frame, and the first roller, the second roller and the output shaft of the driving unit are simultaneously driven to rotate through a linkage mechanism.

[0006] Wherein, the roller mechanism further comprises a triangular positioning frame, and the first roller, the second roller and the other side of the line-passing mechanism are arranged at three vertices of the triangular positioning frame.

[0007] Wherein, a roller pressing sleeve is respectively arranged on one side frame of the first roller and the second roller, and the roller pressing sleeve is used to attach the guide yarn to the roller.

[0008] Wherein, a pressing sheet protruding outward is arranged on the outer side surface of the roller pressing sleeve, and the pressing sheet is used to adjust the tightness of the yarn pressed on the roller pressing sleeve.

[0009] Among them, a micro switch is respectively arranged on the first roller and the second roller, and the micro switch is electrically connected to the driving unit. The micro switch is used to control the driving unit to drive the roller mechanism to rotate when the wire passing pulley swinging mechanism performs the wire feeding action.

[0010] The first roller comprises an outer roller, a core shaft and a bearing, the roller and the core shaft are rotatably sleeved via the bearing, the core shaft is fixed on the frame, and the second roller has the same structural arrangement as the first roller (51).

[0011] Wherein, the linkage mechanism includes a main pulley, a first driven pulley, a second driven pulley and a wedge belt, the main pulley is arranged on the output shaft of the driving mechanism, the first driven pulley is arranged on the outer roller of the first roller, the second driven pulley is arranged on the outer roller of the second roller, and the wedge belt connects the main pulley, the first driven pulley and the second driven pulley so that the linkage mechanism drives the first roller and the second roller to rotate.

[0012] Among them, the wire-passing pulley swing mechanism includes a wire-passing main shaft and a single and double swing pulley frame, the single and double swing pulley frame is swingably mounted on the wire-passing main shaft, and the wire-passing main shaft is rotatably arranged on the frame.

[0013] The inventor also provides a knitting machine, which includes the above-mentioned flat knitting machine.

[0014] Different from the prior art, the above technical solution has the following advantages:

[0015] 1. The yarn is transported autonomously through the roller mechanism, which effectively avoids the risk of yarn breakage when being transported through the knitting machine and improves production efficiency.

[0016] 2. The triangular positioning frame and the thread passing mechanism can reasonably guide the direction of the yarn. The triangular layout reduces the space occupied and can also achieve the effect of winding and adjusting the tightness of the yarn.

[0017] 3. A roller pressing sleeve is installed on one side of each roller of the roller mechanism. The roller pressing sleeve and the pressing sheet can be used to adjust the tightness of the yarn on the roller, which facilitates the conveying of the yarn and improves production efficiency.

[0018] 4. Through the micro-switch, the thread pulley swing mechanism can be controlled to control the drive unit to move during the swing weaving, so that the drum mechanism rotates and drives the yarn to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of a flat knitting machine according to a specific embodiment;

[0020] Figure 2 A partial diagram of a flat knitting machine according to a specific embodiment;

[0021] Figure 3 It is a schematic diagram of a flat knitting machine according to a specific embodiment;

[0022] Description of reference numerals:

[0023] 1- rack;

[0024] 2-drive unit, 21-reduction motor;

[0025] 3- linkage mechanism, 31- main pulley, 32- first driven pulley, 33- second driven pulley, 34- wedge belt;

[0026] 4-Line passing mechanism;

[0027] 5- roller mechanism, 51- first roller, 52- second roller, 511- outer roller, 512- mandrel, 513-

[0028] Bearing, 514-triangular positioning frame;

[0029] 6-line passing pulley swing mechanism, 61-line passing main shaft, 62-single and double swing pulley frame, 621-single pendulum pulley frame, 622-double pendulum pulley frame;

[0030] 7-roller sleeve pressing, 71-tablet pressing;

[0031] 8-Micro switch. DETAILED DESCRIPTION

[0032] In order to explain the technical content, structural features, achieved objectives and effects of the technical solution in detail, the following is a detailed description in conjunction with specific embodiments and accompanying drawings.

[0033] See also Figures 1 to 3 , this embodiment provides a knitting machine, including a frame 1, a driving unit 2, a linkage mechanism 3, a thread passing mechanism 4, a roller mechanism 5 and a thread passing pulley swinging mechanism 6. The driving unit 2 is fixedly arranged on the frame 1, and the driving unit is a reduction motor 21, and can also be a servo motor. The roller mechanism includes a first roller 51 and a second roller 52, and the first roller and the second roller are rotatably arranged on the frame 1. In this embodiment, the driving unit, the thread passing mechanism, the roller mechanism and the thread passing pulley swinging mechanism are fixed by the frame. When the driving unit drives the roller mechanism to rotate through the linkage mechanism, the roller mechanism can convey the yarn to the thread passing pulley swinging mechanism, so as to achieve the purpose of actively conveying the yarn. In order to facilitate the smooth routing of the yarn during transportation, a plurality of thread passing mechanisms can be arranged on the frame. Specifically, two thread passing rods are arranged on one side of the frame, one of which can guide the yarn to the knitting machine, and the other thread passing rod can guide the yarn out of the knitting machine. The two thread passing rods are a cross bar, and the cross bar is provided with thread passing holes at equal intervals, and multiple yarns can be separated respectively through the thread passing holes to prevent the yarns from being entangled with each other during transportation.

[0034] In this embodiment, the roller includes an outer roller 511, a core shaft 512 and a bearing 513. The core shaft is sleeved inside the outer roller and can extend through the two ends of the outer roller, and the thread and nut on one end of the core shaft are fixedly arranged on the frame. Bearings are also arranged at both ends of the outer roller, and the core shaft is rotatably sleeved with the outer roller through the bearings, so that the outer roller can rotate around the core shaft. Therefore, through the linkage mechanism, the driving unit can simultaneously drive the first roller and the second roller to roll, so that when actively conveying the yarn, the two rollers rotate at the same angle.

[0035] In this embodiment, a triangular positioning frame 514 is also provided at the other end of the roller mechanism, through which the first roller, the second roller and the wire-passing mechanism can be fixed in a triangular position on the frame. The first roller can be locked on the frame by a nut and a thread on one end of its mandrel, and the other end of the mandrel of the first roller is fixed to the triangular positioning frame by a nut. Similarly, the second roller and the wire-passing mechanism are locked with bolts, so that the first roller, the second roller and the other side of the wire-passing mechanism can be set at the three vertex angles of the triangular positioning frame. Through the triangular positioning frame and the wire-passing mechanism, the direction of the yarn can be reasonably guided, such as S-shaped winding, so that the yarn is close to the roller, and at the same time, the yarn is transported to the wire-passing pulley swinging mechanism through the guidance of the wire-passing mechanism. Moreover, the triangular arrangement reduces the space occupied, and at the same time, it can also achieve the effect of winding and adjusting the tightness of the yarn. Among them, the wire passing mechanism that forms a triangular positioning with the first roller and the second roller is not the above-mentioned wire passing rod, but a wire passing plate, which also has wire passing holes with the same number and equal spacing as the wire passing rod. The three form a wire passing mechanism, but in other embodiments, more wire passing plates or wire passing rods can be arranged to guide the yarn.

[0036] In this embodiment, the linkage mechanism includes a main pulley 31, a first driven pulley 32, a second driven pulley 33 and a wedge belt 34. The main pulley is arranged on the output shaft of the driving mechanism. The first driven pulley is arranged on the outer roller of the first roller and is arranged at one end where the outer roller of the first roller is connected to the frame, and is provided with a wedge belt groove; the second driven pulley is arranged on the outer roller of the second roller and is arranged at one end where the outer roller of the second roller is connected to the frame, and is provided with a wedge belt groove, so the main pulley, the first driven pulley and the second driven pulley are connected through the wedge belt. When the motor is started, the motor output shaft drives the main pulley to rotate. Because of the mutual linkage relationship between the wedge belt and the main pulley, the first driven pulley and the second driven pulley, the main pulley can drive the first driven pulley and the second driven pulley to rotate simultaneously through the wedge belt, thereby driving the outer rollers of the first roller and the second roller to rotate. This allows the driving unit to simultaneously drive the first roller and the second roller to roll, so that when actively conveying the yarn, the two rollers rotate at the same angle.

[0037] In this embodiment, a micro switch 8 is provided on each of the first roller and the second roller. The micro switch is electrically connected to the drive unit. The micro switch is used to control the drive unit to drive the roller mechanism to rotate when the wire passing pulley swing mechanism performs wire feeding. Specifically, the micro switch is installed on the frame and monitors whether the wire passing pulley swing mechanism has a swing. If the wire passing pulley swing mechanism swings, it controls the drive unit to drive the first roller and the second roller to rotate, so as to transport the yarn for the wire passing pulley swing mechanism. The yarn is actively transported in accordance with the swing frequency of the wire passing pulley swing mechanism, which effectively avoids the problem of too much or too little yarn being transported during active wire feeding, thereby improving production efficiency and quality.

[0038] In this embodiment, a roller pressing sleeve is provided on each side frame of the first roller and the second roller, and the roller pressing sleeve is used to attach the guide yarn to the roller. Specifically, the roller pressing sleeve is rotatably mounted on the frame, for example, mounted on the frame through a bearing, and the central axis of the roller pressing sleeve is parallel to the central axis of the outer roller of the roller mechanism, and the roller pressing sleeve is close to the outer roller of the roller mechanism, and the spacing between the two is between 0 and 10 cm, so the yarn can be pressed by the roller pressing sleeve, so that more yarn will contact the outer roller of the roller mechanism, which is convenient for the roller mechanism to transport the yarn.

[0039] In this embodiment, a pressing piece 71 protruding outward is provided on the outer side of the roller sleeve 7. The pressing piece is a long strip plate, which is installed on the outer side of the outer roller parallel to the central axis of the roller sleeve. Therefore, the gap between the pressing piece and the outer roller can be adjusted by the pressing piece, thereby adjusting the tightness of the yarn pressed on the roller sleeve. In other embodiments, the number of pressing pieces can be set as needed, which is convenient for adjusting the tightness of the yarn, improving the smoothness of conveying the yarn, and improving production efficiency and product quality.

[0040] In the present embodiment, the thread passing pulley swing mechanism 6 is located on one side of the drum mechanism and is arranged on the frame. The drum mechanism is used to roll and convey the yarn when the thread passing pulley swing mechanism swings. The thread passing pulley swing mechanism includes a thread passing main shaft 61 and a single and double swing pulley frame 62. The single and double swing pulley frames are swingably mounted on the thread passing main shaft, and the thread passing main shaft is rotatably arranged on the frame. The single and double swing pulley frames include a plurality of single pendulum pulley frames 621 and a plurality of double pendulum pulley frames 622. The plurality of single pendulum pulley frames 621 and double pendulum pulley frames are alternately mounted on the thread passing main shaft in sequence. When the thread passing main shaft drives the single pendulum pulley frame 621 to move clockwise at the same time, the main shaft will drive the double pendulum pulley frame to move counterclockwise, forming an effect of alternatingly weaving yarn. Because the thread passing pulley swing mechanism is an existing structure, its detailed internal structure will not be repeated here.

[0041] It should be noted that, although the above embodiments have been described in this article, the scope of patent protection of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, changes and modifications made to the embodiments described herein, or equivalent structures or equivalent process changes made using the contents of the present specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields are all included in the scope of protection of the patent of the present invention.

Claims

1. A flat knitting machine, characterized in that: It comprises a frame (1), a drive unit (2), a linkage mechanism (3), a wire-passing mechanism (4), a roller mechanism (5) and a wire-passing pulley swinging mechanism (6); The driving unit (2) is fixedly arranged on the frame (1), one end of the roller mechanism (5) is rotatably arranged on the frame (1), and the linkage mechanism (3) drives and connects the driving unit with one end of the roller mechanism (5); The thread passing pulley swing mechanism is located on one side of the roller mechanism (5) and is arranged on the frame (1), and the roller mechanism (5) is used to roll and convey the yarn when the thread passing pulley swing mechanism swings; one end of the thread passing mechanism (4) is arranged on the frame (1), and the thread passing mechanism (4) is used to guide the direction of the yarn; The roller mechanism (5) comprises a first roller (51) and a second roller (52); one end of the first roller (51) and the second roller (52) are rotatably arranged on the frame (1); the first roller (51), the second roller (52) and the output shaft of the driving unit are driven to rotate simultaneously through a linkage mechanism (3); The roller mechanism (5) further comprises a triangular positioning frame (514), wherein the first roller (51), the second roller (52) and the other end of the wire-passing mechanism (4) are arranged at three vertices of the triangular positioning frame (514); A roller pressing sleeve (7) is respectively arranged on one side frame (1) of the first roller (51) and the second roller (52), and the roller pressing sleeve (7) is used to guide the yarn to adhere to the corresponding roller; The outer side surface of the roller pressing sleeve (7) is provided with a pressing sheet (71) protruding outwards; The first roller (51) and the second roller (52) are each provided with a micro switch (8), the micro switch (8) being electrically connected to a drive unit, and the micro switch (8) being used to control the drive unit to drive the roller mechanism (5) to rotate when the wire passing pulley swing mechanism performs a wire feeding action; The first roller (51) comprises an outer roller (511), a core shaft (512) and a bearing (513); the outer roller is rotatably sleeved on the core shaft (512) via the bearing (513); the core shaft (512) is fixedly mounted on the frame (1); and the second roller (52) has the same structural arrangement as the first roller (51); the central axis of the roller pressing sleeve (7) and the central axis of the outer roller (511) of the roller mechanism (5) are parallel to each other, and the roller pressing sleeve (7) and the outer roller (511) of the roller mechanism (5) are arranged close to each other, so that the roller pressing sleeve (7) presses the yarn so that the yarn contacts the outer roller (511) of the roller mechanism (5), thereby facilitating the roller mechanism (5) to transport the yarn; the pressing plate (71) is a long strip parallel to the central axis of the roller pressing sleeve (7); the gap between the pressing plate (71) and the outer roller (511) can be adjusted by the pressing plate (71), thereby adjusting the tightness of the yarn; The thread passing pulley swing mechanism comprises a thread passing main shaft (61) and a single and double swing pulley frame (62); the single and double swing pulley frame (62) is swingably sleeved on the thread passing main shaft (61); the thread passing main shaft (61) is rotatably arranged on the frame (1); the single and double swing pulley frame comprises a plurality of single pendulum pulley frames (621) and a plurality of double pendulum pulley frames (622); the plurality of single pendulum pulley frames (621) and the double pendulum pulley frames are alternately sleeved on the thread passing main shaft in sequence; when the thread passing main shaft drives the single pendulum pulley frame (621) to move clockwise at the same time, the thread passing main shaft drives the double pendulum pulley frame to move counterclockwise, thereby forming an effect of alternately weaving yarns.

2. The flat knitting machine according to claim 1, characterized in that: The linkage mechanism (3) comprises a main pulley (31), a first driven pulley (32), a second driven pulley (33) and a wedge belt (34); the main pulley is arranged on the output shaft of the drive unit; the first driven pulley (32) is arranged on the outer roller (511) of the first roller (51); the second driven pulley (33) is arranged on the outer roller (511) of the second roller (52); and the wedge belt (34) connects the main pulley (31), the first driven pulley (32) and the second driven pulley (33) so that the linkage mechanism (3) drives the first roller (51) and the second roller (52) to rotate.

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