Multifunctional yarn conveying mechanism of flannelette jacquard circular knitting machine

Abstract

The invention provides a multifunctional yarn conveying mechanism of a flannelette jacquard circular knitting machine, and relates to the field of yarn conveying mechanisms, the multifunctional yarn conveying mechanism of the flannelette jacquard circular knitting machine guides yarn to move, and comprises a top plate, the bottom of the top plate is connected with a sleeve, the front end of the sleeve is connected with a cylinder, the front end of the sleeve is provided with a housing, and the front end of the housing is connected with a butt joint nozzle; a guide rod is hinged to the front end of the top plate and located in front of the butt-joint nozzle. The multifunctional thread conveying mechanism of the flannelette jacquard circular knitting machine is composed of a top plate, a sleeve, a column body, a shell cover butt joint nozzle and a guide rod, a sliding block, a magnetic sheet, a large electromagnet unit, a pressure sensor and a large spring are arranged in the sleeve, and an electric push rod is replaced by magnetic pushing; microsecond-level adjustment is achieved by changing the current intensity, microsecond-level response is achieved through electromagnetic pushing, yarn breakage caused by the fact that a traditional electric push rod stretches out and draws back to tension yarn too large and is not easy to control is avoided, and the accuracy of controlling the yarn tensioning degree is improved.

Description

Technical Field

[0001] This invention relates to the field of wire feeding mechanism technology, specifically to a multi-functional wire feeding mechanism for a large circular knitting machine for velvet jacquard fabric. Background Art

[0002] As people's living standards improve, their demands for the quality and aesthetics of textile fabrics are increasing. Jacquard circular knitting machines are required in the production process. For example, a patent application titled "A Multi-Motor Driven Ultra-Large Width Cutting Loop Jacquard Circular Knitting Machine" (CN202510660866.3) has been published on the China Patent Network.

[0003] Conventional circular knitting machines can only perform single-function production, either interlacing DTY yarn or FDY yarn, resulting in limited product variety. To improve product diversification, multiple yarn feeding devices are installed on circular knitting machines to perform composite interlacing.

[0004] Traditional yarn feeding devices have a relatively simple structure and weak yarn tension control capabilities. They typically use tension sensors to sense yarn tension and adjust the force applied to the yarn by extending or retracting an electric actuator, resulting in low control precision. Summary of the Invention

[0005] Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a multi-functional thread feeding mechanism for a large circular knitting machine for velvet jacquard fabric, which solves the problems mentioned in the background section.

[0006] Technical solution To achieve the above objectives, the present invention is implemented through the following technical solution: a multi-functional yarn feeding mechanism for a circular knitting machine for velvet fabric, which guides the movement of yarn, including a top plate, a sleeve connected to the bottom of the top plate, a column connected to the front end of the sleeve, a cover provided at the front end of the sleeve, a docking nozzle connected to the front end of the cover, and a guide rod hinged to the front end of the top plate, the guide rod being located in front of the docking nozzle.

[0007] Preferably, the sleeve is provided with a traction roller, a fixed rod, and a slider. The fixed rod is located directly below the traction roller, and the slider is horizontally slidably fitted inside the sleeve, with the slider positioned between the traction roller and the fixed rod. A large electromagnet unit is provided on the inner wall of the sleeve in front of the slider, and a pressure sensor is connected to the inner wall of the sleeve behind the slider.

[0008] Preferably, a large spring is connected between the slider and the pressure sensor, and a magnetic sheet is provided on the front side of the slider. When the large electromagnet unit is energized, there is a repulsive force between the magnetic field generated and the magnetic sheet. The yarn passes through the traction roller, the slider, and the fixing rod in sequence along the yarn direction. After passing through the sleeve, the yarn is wound around the outside of the column and finally passes through the shell and the docking nozzle.

[0009] Preferably, the sleeve is provided with an energy conversion component, which is used to convert part of the inertial energy into electrical energy for storage.

[0010] Preferably, the energy conversion component includes two magnetic plates, a support rod, and a small electromagnet unit. The two magnetic plates are arranged vertically, the support rod passes through the two magnetic plates, and the lower end of the support rod is connected to the bottom of the inner wall of the sleeve. A motor is provided on one side of the two magnetic plates that are close to each other. The motor drive shaft is connected to the magnetic rod, the magnetic rod clamps the yarn, and the small electromagnet unit is installed on the upper end of the support rod.

[0011] Preferably, a support rod is connected to the top of the upper magnet plate, a capacitor is connected to the small electromagnet unit, multiple small iron rods are arranged at equal intervals near the edge of the magnet rod of the small electromagnet unit, a middle spring is connected to the bottom of the small electromagnet unit, the lower end of the middle spring is connected to the upper magnet plate, and the small iron rods are electrically connected to the capacitor.

[0012] Preferably, the column is hollow inside, with a through groove connecting it to the outside. Protrusions are distributed in a ring inside the column, with raised parts on the inner side of each protrusion. A cam is provided inside the column, and the rotation of the cam can push the protrusions out one by one in a clockwise direction.

[0013] Preferably, small springs are connected to both sides of the protrusion, and the end of the small spring away from the protrusion is connected to the inner wall of the cylinder.

[0014] Preferably, the lower magnet plate is fixedly connected to the support rod body, the upper magnet plate is slidably engaged with the support rod body, and a horizontal sliding rod is welded inside the sleeve, which is slidably engaged with the slider.

[0015] Preferably, a microcontroller is installed inside the sleeve, which controls the operation of electronic components, and wire loops are arranged at equal intervals at the bottom of the guide rod. Beneficial effects

[0016] This invention provides a multi-functional thread feeding mechanism for a large circular knitting machine for velvet jacquard fabric. It has the following beneficial effects: This multi-functional yarn feeding mechanism for a circular knitting machine for velvet jacquard fabric consists of a top plate, sleeve, column, housing, connecting nozzle, and guide rod. The sleeve contains a slider, magnetic sheet, large electromagnet unit, pressure sensor, and large spring. It replaces the electric push rod with magnetic force and achieves microsecond-level adjustment by changing the current intensity. The electromagnetic drive achieves microsecond-level response, avoiding the yarn breakage caused by excessive tensioning of the yarn with the traditional electric push rod, thus improving the accuracy of controlling the yarn tension.

[0017] This multi-functional wire feeding mechanism of the jacquard circular knitting machine for velvet fabric incorporates an energy conversion component within the sleeve. This component includes a magnetic plate, a motor, a small electromagnet unit, a capacitor, a small iron rod, and a central spring. When power is off, the magnetic rod is brought close to the small iron rod. Due to inertia, the magnetic rod continues to rotate, causing the small iron rod to cut the magnetic field lines of the magnetic rod, generating an electric current. This current is then collected by the capacitor. Thus, in emergency stop conditions, inertial energy is converted into electrical energy and stored, achieving partial energy autonomy. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the structure of the present invention; Figure 2 This is a front view of the structure of the present invention; Figure 3 This is a cross-sectional view of the sleeve structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the sleeve of the present invention; Figure 5 This is a partial structural diagram of the present invention; Figure 6 This is a diagram illustrating the columnar structure of the present invention.

[0019] In the diagram: 1 Top plate, 2 Sleeve, 21 Traction roller, 22 Fixed rod, 23 Slide rod, 24 Slider, 241 Large spring, 242 Magnetic sheet, 25 Large electromagnet unit, 26 Pressure sensor, 3 Column, 31 Through slot, 32 Protrusion, 33 Raised part, 34 Small spring, 35 Cam, 4 Housing, 5 Connecting nozzle, 6 Guide rod, 61 Wire ring, 7 Magnet plate, 71 Motor, 72 Magnetic rod, 73 Support rod, 8 Support rod, 9 Small electromagnet unit, 91 Capacitor, 92 Small iron rod, 93 Middle spring. Detailed Implementation

[0020] This invention provides a multi-functional thread feeding mechanism for a circular knitting machine for velvet jacquard fabric, such as... Figure 1-6 As shown, the yarn guide includes a top plate 1, a sleeve 2 fixedly installed at the bottom of the top plate 1, a column 3 fixedly connected to the sleeve 2, a cover 4 fixedly installed at the front end of the sleeve 2, a docking nozzle 5 connected to the front end of the cover 4, and a guide rod 6 hinged to the front end of the top plate 1, with the guide rod 6 located in front of the docking nozzle 5.

[0021] The sleeve 2 is equipped with a traction roller 21, a fixed rod 22, and a slider 24. The fixed rod 22 is located directly below the traction roller 21, and the slider 24 is horizontally slidably fitted inside the sleeve 2, with the slider 24 positioned between the traction roller 21 and the fixed rod 22. The end of the traction roller 21 is pivotally connected to the inner wall of the sleeve 2, and the end of the fixed rod 22 is welded to the inner wall of the sleeve 2.

[0022] A large electromagnet unit 25 is fixedly installed on the inner wall of the sleeve 2 in front of the slider 24, and a pressure sensor 26 is fixedly installed on the inner wall of the sleeve 2 in front of the slider 24.

[0023] A large spring 241 is fixedly installed between the slider 24 and the pressure sensor 26. A magnetic sheet 242 is fixedly installed on the front side of the slider 24. When the large electromagnet unit 25 is energized, there is a repulsive force between the magnetic field generated and the magnetic sheet 242.

[0024] When in operation, the large electromagnet unit 25 is energized and generates a magnetic field. The N pole of this magnetic field faces the magnetic plate 242, and the N pole of the magnetic field of the magnetic plate 242 faces the large electromagnet unit 25. (See attached diagram.) Figure 3 , 4 Under the magnetic repulsion, slider 24 slowly moves away from traction roller 21, thus tensioning the yarn. When it is necessary to increase the yarn tension, the current is increased. The increased current strengthens the magnetic field, causing slider 24 to move further. Conversely, reducing the current weakens the magnetic field, causing the large spring 241 to unfold and push slider 24 closer to traction roller 21, thereby reducing the yarn tension.

[0025] The tension is adjusted by magnetic force, and the yarn tension fluctuation is monitored in real time by pressure sensor 26. The adjustment is achieved at the microsecond level by controlling the current intensity.

[0026] The yarn passes through the traction roller 21, the slider 24, and the fixing rod 22 in sequence along the yarn direction. After passing through the sleeve 2, the yarn is wound around the outside of the column 3. The yarn wound around the outside of the column 3 then enters the housing 4 and finally extends out from the docking nozzle 5.

[0027] The sleeve 2 is equipped with an energy conversion component, which is used to convert part of the inertial energy into electrical energy for storage.

[0028] The energy conversion component includes two magnetic plates 7, a support rod 8, and a small electromagnet unit 9. The two magnetic plates 7 are arranged vertically, and the support rod 8 passes through both magnetic plates 7. The lower end of the support rod 8 is welded to the bottom of the inner wall of the sleeve 2. A motor 71 is fixedly installed on one side of the two magnetic plates 7, close to each other. A magnetic rod 72 is fixedly installed on the drive shaft of the motor 71, and the magnetic rod 72 clamps the yarn. The small electromagnet unit 9 is fixedly installed on the upper end of the support rod 8. The motor 71 rotates the magnetic rod 72, and the magnetic rod 72 moves the yarn while clamping it.

[0029] A support rod 73 is fixedly installed on the top of the magnet plate 7 located above. A capacitor 91 is fixedly installed on the small electromagnet unit 9. Multiple small iron rods 92 are fixedly installed at equal intervals near the edge of the small electromagnet unit 9 close to the magnetic rod 72. A middle spring 93 is fixedly glued to the bottom of the small electromagnet unit 9. The lower end of the middle spring 93 is fixedly glued to the magnet plate 7 located above.

[0030] The small iron rod 92 is electrically connected to the capacitor 91. When the transmission device is working, the small electromagnet unit 9 is always energized, and a repulsive force is generated between the small electromagnet unit 9 and the magnet plate 7. At this time, the central spring 93 is stretched, and the magnetic rod 72 clamps the yarn.

[0031] Working principle: When a power outage occurs, there is no repulsive force between the small electromagnet unit 9 and the magnetic plate 7. Immediately afterwards, the middle spring 93 contracts, the upper magnetic plate 7 moves upward, the support rod 73 comes into contact with the small electromagnet unit 9, and the magnetic rod 72 approaches the small iron rod 92. Since the drive shaft of the inertial motor 71 continues to rotate, the rotation of the magnetic rod 73 causes the small iron rod 92 to cut the magnetic field lines. The current generated by cutting the magnetic field lines is stored by the capacitor 91.

[0032] The interior of the column 3 is hollow, and the column 3 has a through groove 31 that connects to the outside. The column 3 has protrusions 32 that slide in a ring inside, and the inner side of the protrusions 32 has a raised part 33. The column 3 has an electrically driven cam 35 that is fixedly installed inside. The rotation of the cam 35 can push the protrusions 32 out in a clockwise direction.

[0033] Small springs 34 are fixedly installed on both sides of the protrusion 32, and the end of the small spring 34 away from the protrusion 32 abuts against the inner wall of the column 3.

[0034] During operation, the cam 35 rotates, causing the protrusion 32 to move rapidly. The cam 35 passes the raised part 33 and pushes the protrusion 32 outward. When the cam 35 moves away from the protrusion 32, the small spring 34 resets the protrusion 32. The movement of the protrusion 32 has an expansion effect on the yarn to a certain extent, preventing the yarn from getting more and more tangled when it moves on the surface of the column 3.

[0035] The lower magnet plate 7 is fixedly bonded to the support rod 8, and the upper magnet plate 7 is slidably engaged with the support rod 8. A horizontal sliding rod 23 is welded inside the sleeve 2, and the sliding rod 23 is slidably engaged with the slider 24.

[0036] A microcontroller is fixedly installed inside the sleeve 2. The microcontroller is used to control the operation of electronic components. Wire rings 61 are fixedly installed at equal intervals at the bottom of the guide rod 6. The wire rings 61 serve to guide and fix the components.

[0037] In summary, the multi-functional yarn feeding mechanism of this jacquard circular knitting machine consists of a top plate 1, a sleeve 2, a column 3, a housing 4, a docking nozzle 5, and a guide rod 6. The sleeve 2 is equipped with a slider 24, a magnetic sheet 242, a large electromagnet unit 25, a pressure sensor 26, and a large spring 241. It uses magnetic force to replace the electric push rod, and uses the change of current intensity to achieve microsecond-level adjustment. It uses electromagnetic drive to achieve microsecond-level response, avoiding the problem of excessive yarn tension caused by traditional electric push rods, which are difficult to control and lead to yarn breakage. This improves the accuracy of controlling the yarn tension.

[0038] Furthermore, an energy conversion assembly is installed inside the sleeve 2. This assembly includes a magnetic plate 7, a motor 71, a small electromagnet unit 9, a capacitor 91, a small iron rod 92, and a central spring 93. When the power is off, the magnetic rod 72 is brought close to the small iron rod 92. Due to inertia, the magnetic rod 72 continues to rotate, causing the small iron rod 92 to cut the magnetic field lines of the magnetic rod 72 to generate current. The capacitor 91 collects this current. Thus, in emergency stop conditions, inertial energy is converted into electrical energy and stored, achieving partial energy autonomy.

[0039] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multi-functional yarn feeding mechanism for a circular knitting machine for velvet fabric, guiding yarn movement, characterized in that: Includes a top plate (1), the bottom of the top plate (1) is connected to a sleeve (2), the front end of the sleeve (2) is connected to a column (3), the front end of the sleeve (2) is provided with a shell (4), the front end of the shell (4) is connected to a docking nozzle (5), the front end of the top plate (1) is hinged to a guide rod (6), and the guide rod (6) is located in front of the docking nozzle (5); The sleeve (2) is provided with a traction roller (21), a fixing rod (22), and a slider (24). The fixing rod (22) is located directly below the traction roller (21). The slider (24) is horizontally slidably fitted inside the sleeve (2) and is located between the traction roller (21) and the fixing rod (22). A large electromagnet unit (25) is provided on the inner wall of the sleeve (2) in front of the slider (24). A pressure sensor (26) is connected to the inner wall of the sleeve (2) behind the slider (24). A large spring (241) is connected between the slider (24) and the pressure sensor (26). A magnetic sheet (242) is provided on the front side of the slider (24). The magnetic field generated by the large electromagnet unit (25) after being energized has a repulsive force with the magnetic sheet (242). The yarn passes through the traction roller (21), the slider (24), and the fixing rod (22) in sequence along the yarn direction. After passing through the sleeve (2), the yarn is wrapped around the outside of the column (3) and finally passes through the shell (4) and the docking nozzle (5). The sleeve (2) is equipped with an energy conversion component, which is used to convert part of the inertial energy into electrical energy for storage.

2. The multi-functional wire feeding mechanism of a large circular knitting machine for velvet fabric according to claim 1, characterized in that: The energy conversion component includes two magnet plates (7), a support rod (8), and a small electromagnet unit (9). The two magnet plates (7) are arranged vertically, and the support rod (8) passes through the two magnet plates (7). The lower end of the support rod (8) is connected to the bottom of the inner wall of the sleeve (2). A motor (71) is provided on one side of the two magnet plates (7) that are close to each other. The drive shaft of the motor (71) is connected to a magnetic rod (72). The magnetic rod (72) clamps the yarn. The small electromagnet unit (9) is installed on the upper end of the support rod (8).

3. The multi-functional wire feeding mechanism of a large circular knitting machine for velvet fabric according to claim 2, characterized in that: A support rod (73) is connected to the top of the magnet plate (7) located above. A capacitor (91) is connected to the small electromagnet unit (9). Multiple small iron rods (92) are arranged at equal intervals near the edge of the magnet (72) of the small electromagnet unit (9). A middle spring (93) is connected to the bottom of the small electromagnet unit (9). The lower end of the middle spring (93) is connected to the magnet plate (7) located above. The small iron rods (92) are electrically connected to the capacitor (91).

4. The multi-functional wire feeding mechanism of a large circular knitting machine for velvet fabric according to claim 3, characterized in that: The column (3) is hollow inside and has a through groove (31) that connects to the outside. There are protrusions (32) distributed in a ring inside the column (3). There are raised parts (33) on the inner side of the protrusions (32). There is a cam (35) inside the column (3). The cam (35) can push the protrusions (32) out in a clockwise direction when it rotates.

5. The multi-functional wire feeding mechanism of a large circular knitting machine for velvet fabric according to claim 4, characterized in that: Small springs (34) are connected to both sides of the protrusion (32), and the end of the small spring (34) away from the protrusion (32) is connected to the inner wall of the column (3).

6. The multi-functional wire feeding mechanism of a large circular knitting machine for velvet fabric according to claim 5, characterized in that: The lower magnet plate (7) is fixedly connected to the support rod (8), and the upper magnet plate (7) is slidably engaged with the support rod (8). A horizontal sliding rod (23) is welded inside the sleeve (2), and the sliding rod (23) is slidably engaged with the slider (24).

7. The multi-functional wire feeding mechanism of a large circular knitting machine for velvet fabric according to claim 6, characterized in that: The sleeve (2) is equipped with a microcontroller, which controls the operation of electronic components. The bottom of the guide rod (6) is arranged with wire rings (61) at equal intervals.

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