Three-motor rotary head assembly for chenille weaving machine

Abstract

The invention discloses a three-motor swivel head assembly of a chenille textile machine, belonging to the technical field of textile equipment. The three-motor swivel head assembly comprises a frame and a pressure roller motor arranged on the frame, a left swing arm motor and a right swing arm motor are arranged on the frame, the pressure roller motor, the left swing arm motor and the right swing arm motor are arranged in a herringbone structure, the left swing arm motor is connected to a left swing arm component, the right swing arm motor is connected to a right swing arm component, the left swing arm component and the right swing arm component are symmetrically arranged, mounting holes are arranged on the left and right sides of the frame, the left swing arm component and the right swing arm component are both provided with mounting bearings, the mounting bearings can be installed in corresponding mounting holes, and the left swing arm component and the right swing arm component can be rotated with the mounting bearings as the center, and the center lines of the rotating shafts of the left swing arm motor and the right swing arm motor are arranged in a coincident manner with the center lines of the corresponding mounting bearings.

Description

Technical Field

[0001] The present invention relates to the technical field of chenille textile machines, and in particular to a three-motor rotary head assembly of a chenille textile machine. Background Art

[0002] Chenille spinning machine is a new type of textile equipment used to produce chenille yarn. Because chenille yarn is soft and comfortable, has a gentle touch and bright colors, it is widely used in the production of clothing fabrics, furniture materials, automotive interiors and other fields.

[0003] When the chenille textile machine is working, the wool yarn is first wound onto the inverted triangle cutting blade through the high-speed rotating head. The width of the cutting blade neck determines the length of the pile yarn. Then the pressure roller is fed from the original yarn frame and two core wires are sent out, one of which constitutes the surface core wire of the chenille yarn, and the other constitutes the bottom core wire of the chenille yarn. The wool yarn on the cutting blade is pushed to the blade by the roller, and the blade cuts the wool yarn. The cut wool yarn is clamped between the surface core wire and the bottom core wire on both sides, and then the rotation of the winding spindle is used to make the sheet wool yarn between the two core wires spread out in all directions to become chenille yarn.

[0004] In the prior art, the drive of the wire feeding roller and the left and right rollers of the chenille textile machine is usually transmitted by a structure combining a single motor and a gear box, and its transmission ratio is usually relatively fixed. Therefore, its structure is complex, the failure rate is high, and the maintenance cost is high. It is also impossible to flexibly adjust according to different specifications of yarn raw materials and the moisture regain of different batches of yarns, resulting in poor quality of the finished chenille yarn and poor product consistency. Summary of the invention

[0005] The purpose of the present invention is to provide a three-motor rotary head assembly for a chenille spinning machine, which can improve the quality of finished chenille yarn by independently controlling and adjusting the three motors, enable the equipment to quickly handle yarns of various specifications and models, and simultaneously improve the production efficiency of chenille yarn.

[0006] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: a three-motor rotary head assembly of a chenille textile machine comprises a frame and a pressure roller motor arranged on the frame, a left swing arm motor and a right swing arm motor are arranged on the frame, the pressure roller motor, the left swing arm motor and the right swing arm motor are arranged in a herringbone structure, the left swing arm motor is connected to a left swing arm component, the right swing arm motor is connected to a right swing arm component, the left swing arm component and the right swing arm component are symmetrically arranged, mounting holes are arranged on the left and right sides of the frame, the left swing arm component and the right swing arm component are both provided with mounting bearings, the mounting bearings can be installed in corresponding mounting holes, and the left swing arm component and the right swing arm component can rotate with the mounting bearings as the center, and the center lines of the rotating shafts of the left swing arm motor and the right swing arm motor are arranged in a coincident state with the center lines of the corresponding mounting bearings.

[0007] Furthermore, the rotating shaft of the pressure roller motor is in a state of extending to both ends, and both left and right ends thereof are connected with pressure roller shafts, and the pressure roller shaft is arranged in cooperation with a pressure roller wheel.

[0008] Furthermore, a transmission wheel is provided inside the left swing arm component and the right swing arm component, and a motor gear is arranged at the front end of the rotating shaft or the transmission shaft of the left swing arm motor and the right swing arm motor, and the motor gear can mesh with the transmission wheel.

[0009] Furthermore, the left swing arm component and the right swing arm component are arranged with roller shafts, roller shaft gears are arranged on the roller shafts, the roller shaft gears can mesh with the transmission wheel, a roller wheel is arranged at the front end of the roller shaft, and a distance fine-tuning component is arranged at the rear end of the roller shaft.

[0010] Furthermore, the width of the roller shaft gear is greater than the width of the transmission wheel, which is used to fine-tune the displacement tolerance of the roller shaft.

[0011] Furthermore, the distance fine-tuning component includes an adjusting screw sleeve, the outer wall of the adjusting screw sleeve is provided with an external thread, the inner wall of the housing of the left swing arm component and the right swing arm component is provided with an internal thread, the external thread and the internal thread can cooperate, the adjusting screw sleeve and the roller shaft are in a centrally aligned arrangement state, and the two are in a rotationally connected state. By rotating the adjusting screw sleeve, the roller shaft and the roller position can be slightly adjusted, so that the quality of the finished chenille yarn is better and the equipment debugging is more convenient.

[0012] Furthermore, the adjusting screw sleeve is connected to the roller shaft with a bearing, the inner ring of the bearing is connected to the roller shaft, and the outer ring of the bearing is connected to the inner wall of the adjusting screw sleeve, which can reduce interference with the rotation of the roller shaft and make the rotation of the roller shaft more stable and accurate.

[0013] Furthermore, a limit nut is arranged on the external thread of the adjusting screw sleeve, and the limit nut plays a locking role to prevent the roller shaft from being displaced after the adjustment is completed.

[0014] Furthermore, a groove is provided at the front end of the adjusting screw sleeve, and a sealing ring is arranged on the groove, and the sealing ring is tightly fitted with the groove and the inner wall of the housing, thereby improving the sealing degree inside the left swing arm component and the right swing arm component, and preventing dust from entering and lubricating oil from overflowing.

[0015] Furthermore, a wire break alarm component is arranged on the frame, and the wire break alarm component includes an alarm porcelain wheel and a wire break sensor, and the alarm porcelain wheel is arranged between the pressure roller shaft and the roller wheel in the core wire conveying path.

[0016] Compared with the existing technology, this solution has the following advantages:

[0017] The three-motor rotary head assembly of the chenille textile machine of this scheme has a three-motor structure arranged in a triangular shape, and the pressure roller motor, the left swing arm motor and the right swing arm motor are independently installed and arranged. The pressure roller motor realizes the transmission of the core wire with tension maintenance. This scheme can adjust the speed of the pressure roller motor through the left swing arm motor or the right swing arm motor, and can accurately and efficiently adjust the pull ratio between the two, so that the equipment can adapt to various types of yarns and process requirements, and can also make corresponding adjustments to the moisture regain of different batches of yarns, so the quality of the finished chenille yarn is better and the consistency of the product can be guaranteed; however, the traditional equipment adopts a single-motor transfer box structure, and its mechanical structure is complex, the use and maintenance costs are high, and it is difficult to adjust the pull ratio, and it is not competent for the production requirements of high-speed and high-quality chenille yarn;

[0018] In the installation of the left swing arm motor or the right swing arm motor, this solution installs the motor shaft or the transmission rod in a coaxial arrangement with the corresponding installation bearing, which can greatly improve the rotation flexibility of the left swing arm component and the right swing arm component and the stability of the power input, and greatly reduce the installation structure, so that the left swing arm motor or the right swing arm motor does not need complex mechanical transmission components, has the most ideal transmission efficiency, and can make the roller at the terminal run stably and efficiently. At the same time, since the roller will wear out during the high-speed generation process, the speed compensation control is performed by the left swing arm motor or the right swing arm motor, which can increase the service life of the roller and reduce the replacement cycle of the roller. Therefore, this solution has a simple mechanical structure, stable and reliable operation, and through precise speed adjustment of the three motors, efficient, accurate and high-quality chenille yarn manufacturing can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the turret head assembly of the preferred embodiment.

[0020] Figure 2 It is a schematic diagram of the front structure of the swivel head assembly.

[0021] Figure 3 It is a schematic diagram of the back structure of the swivel head assembly.

[0022] Figure 4 It is a schematic diagram of the structural decomposition of the left swing arm motor and left swing arm components.

[0023] Figure 5 It is a schematic diagram of the internal transmission structure of the left swing arm component.

[0024] Figure 6 This is a schematic diagram of the front section structure of the roller shaft.

[0025] Figure 7 This is a schematic diagram of the rear section structure of the roller shaft. DETAILED DESCRIPTION

[0026] The original intention of this plan is to design a chenille textile machine that can freely adjust the speed, and to perform independent motor control on the core component of the chenille textile machine, the rotary head assembly, so that it can be suitable for various yarn types and batches, and produce high-quality and consistent chenille yarn, and by increasing the speed and stability, the production efficiency of chenille yarn can be greatly improved.

[0027] refer to Figure 1 Figure 2 Figure 3 , a three-motor rotary head assembly of a chenille textile machine, comprising a frame 1 and a pressure roller motor 21 arranged on the frame, a left swing arm motor 31 and a right swing arm motor are arranged on the frame 1, wherein the pressure roller motor 21, the left swing arm motor 31 and the right swing arm motor are arranged in a herringbone structure, the left swing arm motor 31 is connected to a left swing arm component 3, the right swing arm motor is connected to a right swing arm component, and the left swing arm component 3 and the right swing arm component are symmetrically arranged (for example to simplify the description, this scheme takes the left swing arm motor 31 and the left swing arm component 3 as an example for further description);

[0028] The roller motor 21 is installed at the center of the top of the frame 1. The rotating shaft 22 of the roller motor 21 is extended to both ends. The roller shafts 23 are connected to the left and right ends. The roller shaft 23 is matched with a roller wheel 24. The roller wheel 24 is an iron core wheel. The rotating shafts at both ends of the roller wheel 24 are limited in the U-shaped groove 25. Therefore, by appropriately changing the diameter of the roller wheel 24 (i.e. adjusting the weight of the iron core counterweight), the roller wheel 24 can always fit with the roller shaft 23. The roller shaft 23 is connected to the roller motor 21. The machine 21 is driven to rotate, and drives the pressure roller 24 to rotate accordingly. On one side of the pressure roller motor 21, the surface core yarn and the bottom core yarn of the chenille delivered from the front end are delivered between the pressure roller 24 and the pressure roller shaft 23 through the wire ring 26. Therefore, by controlling the speed of the pressure roller motor 21, the conveying speed and conveying tension of the two core yarns can be accurately controlled. The core yarns on the left and right sides of the pressure roller motor 21 are respectively delivered to the left swing arm component 31 and the right swing arm component to realize the production of chenille yarn.

[0029] refer to Figure 4 The main body of the frame 1 is a bilaterally symmetrical structure. For the stability of the structure, it can be integrally formed by aluminum alloy castings or milling parts. The frame 1 is symmetrically provided with mounting holes 33. The left swing arm component 3 and the right swing arm component are both provided with mounting bearings 34. The mounting bearings 34 can be installed in the corresponding mounting holes 33. Specifically, the outer wall of the outer ring of the mounting bearing 34 is tightly fitted with the inner wall of the mounting hole 33. The rear end of the left swing arm component 3 is provided with a hollow mounting seat 35, and the outer wall of the mounting seat 35 is precisely fitted with the inner wall of the inner ring of the mounting bearing 34. Therefore, the left swing arm component 3 can rotate about the center line of the mounting hole 33, the mounting bearing 34 or the mounting seat 35. During actual installation, the left swing arm component 3 is precisely mounted on the frame 1 through the mounting seat 35 and the mounting bearing 34. A motor gear 32 is arranged at the front end of the left swing arm motor 31. The left swing arm motor 31 is installed from the rear end to the front end through screws and screw holes on the back of the frame 1. At the same time, the motor gear 32 passes through the central hollow of the mounting seat 35 to transmit power to the inside of the left swing arm component 3, and makes the center line of the rotating shaft of the left swing arm motor 31 coincide with the center line of the mounting bearing 34. Therefore, the installation can be more precise and the power transmission can be more stable. Even if the left swing arm motor 31 is adjusted at a high or low speed, it will not interfere with the rotation of the left swing arm component 3 itself. Therefore, when the speed of the left swing arm motor 31 is freely adjusted, the rotation of the left swing arm component 3 will not be affected, thereby not affecting the pressure of the left swing arm component 3 during the chenille spinning process, so the consistency and quality of the chenille yarn can be improved.

[0030] refer to Figure 5The left swing arm component 3 is hollow inside and is provided with two mutually meshing transmission wheels 36. A roller shaft component 4 is longitudinally arranged on the inner side of the top of the left swing arm component 3. The roller shaft component 4 includes a roller shaft 41. A roller shaft gear 42 is provided in the middle position of the roller shaft 41. The roller shaft gear 42 and the transmission wheel 36 are also in a meshing state. In terms of transmission, the left swing arm motor 31 transmits power to the roller shaft gear 42 and the roller shaft 41 through the left swing arm motor gear 32 and the transmission wheel 36. In this structure, there is no need for traditional couplings and other components, that is, as long as the left swing arm motor 31 is installed in place, the function of efficient and accurate transmission can be realized, which greatly simplifies the equipment installation operation and debugging process, and simplifies the transmission structure, thereby improving the transmission efficiency of the motor and the whole.

[0031] A cover plate 37 is provided on the top of the left swing arm component 3, and the cover plate 37 is installed on the top of the left swing arm component 3 by screws. Opening the cover plate 37 can facilitate installation and maintenance operations. When necessary, lubricant can be added to the inside of the left swing arm component 3, thereby ensuring that the internal gear transmission structure is lubricated and improving its service life and stability.

[0032] refer to Figure 6 Figure 7 The roller shaft 41 is stably installed inside the left swing arm component 3 through two roller bearings 43. At the front end of the roller shaft 41, a roller chuck 46, a roller wheel 47 and a roller cover plate 48 are arranged respectively, wherein the outer ring of the roller wheel 47 can be made of polyurethane material, and the surface core wire of the chenille yarn is transported around the roller wheel 47. The roller chuck 46 and the roller cover plate 48 are used to install and fix the roller wheel 47 on the roller shaft 41, wherein the front end of the roller cover plate 48 is provided with a mounting straight groove, and the hexagon socket mounting screw 49 is installed with the inside of the roller shaft 41 through a thread. During the installation process, the rotation of the roller cover plate 48 can be first limited by a wrench, and then by The mounting screw 49 is installed with an Allen wrench. Since the outer ring of the roller wheel 47 will be worn during the efficient production of chenille yarn, regular maintenance and replacement operations are required. The installation structure of this scheme has the characteristics of simple structure and convenient installation. It will not affect the rotation of the roller shaft 41 during the installation process, and prevent the roller shaft 41 from affecting the transmission wheel 36 and the left swing arm motor 31 in the reverse direction due to the installation force; an oil seal 45 is provided on the roller shaft 41 between the roller bearing 43 and the roller chuck 46 to prevent the lubricating oil inside the left swing arm component 3 from overflowing or invading the roller wheel 47, thereby contaminating the yarn.

[0033] The position and rotation speed of the roller wheel 47 are important parameters for ensuring the quality of the chenille yarn. In order to accurately adjust the front and rear positions of the roller wheel 47, a distance fine-tuning component 400 is arranged at the rear end of the roller shaft 41. The distance fine-tuning component 400 includes an adjusting screw sleeve 401. The adjusting screw sleeve 401 is a hollow structure, and the hollow interior can accommodate the roller shaft 41. The outer wall of the adjusting screw sleeve 401 is provided with an external thread, and the inner wall of the shell of the left swing arm component 3 is provided with an internal thread, and the external thread and the internal thread can cooperate. The adjusting screw sleeve 401 and the roller shaft 41 are in a center-aligned arrangement state, and a bearing cavity 402 is provided at the rear end of the adjusting screw sleeve 401. The bearing cavity 402 can accommodate a fine-tuning bearing 403, that is, the outer ring of the fine-tuning bearing 403 The outer wall fits with the bearing cavity 402, and the inner wall of the inner ring of the fine-tuning bearing 403 fits with the outer wall of the rear end of the roller shaft 41. A shaft end retaining ring 404 is arranged at the outer end of the fine-tuning bearing 403 to cover the outer edge of the fine-tuning bearing 403. The shaft end retaining ring 404 is installed on the outer end of the roller shaft 41 through the retaining ring screw 405, thereby realizing the longitudinal displacement connection between the adjusting screw sleeve 401 and the roller shaft 41, but the rotation between the roller shaft 41 and the adjusting screw sleeve 401 is not subject to mutual interference. In actual operation, by rotating the adjusting screw sleeve 401, under the adjustment of the thread and the internal thread stroke, and through the fine-tuning bearing 403, the roller shaft 41 can be driven to move forward and backward, and then the position of the corresponding roller wheel 47 can be adjusted.

[0034] In order to make the adjustment position relatively stable and prevent the adjusting screw sleeve 401 from rotating during the operation of the left swing arm component 3, a limiting nut 408 is arranged on the external thread of the adjusting screw sleeve 401. The side wall of the limiting nut 408 can fit with the shell of the left swing arm component 3 to play a locking role, thereby preventing the adjusting screw sleeve 401 and the roller shaft 41 from being displaced after the adjustment is completed.

[0035] In order to play a sealing role, a sealing groove 406 is arranged on the outer wall of the front end of the adjusting screw sleeve 401, and an O-ring is arranged correspondingly in the sealing groove 406 to play the role of an oil seal; in order to reduce the impact on the gear transmission when the position of the roller shaft 41 is fine-tuned, the width of the roller shaft gear 42 is greater than the width of the transmission wheel 36, so it can be used to fine-tune the displacement tolerance of the roller shaft 41.

[0036] In order to detect whether the yarn is conveyed normally, a broken wire alarm component 11 is arranged on the frame 1, and the broken wire alarm component 11 includes an alarm ceramic wheel 12 and a broken wire sensor 13, wherein the alarm ceramic wheel 12 is arranged between the pressure roller shaft 23 and the roller wheel 47 in the core wire conveying path. Specifically, the broken wire sensor 13 can be a Hall sensor structure. When the yarn passes through the alarm ceramic wheel 12, it drives the alarm ceramic wheel 12 to rotate continuously, and obtains a voltage value of the corresponding frequency at the broken wire sensor 13. When the broken wire occurs, the broken wire sensor 13 cannot obtain the corresponding voltage value, so the system can determine that the broken wire occurs, and when necessary, the system can implement a shutdown operation; furthermore, through the analysis of the voltage value change of the broken wire sensor 13, the system can be used to obtain the current yarn conveying speed. Since the yarn conveyed between the pressure roller shaft 23 and the roller wheel 47 has a stable tension, the data acquisition has better accuracy.

[0037] In summary, the three-motor rotary head assembly of the chenille textile machine of this scheme has a three-motor structure arranged in a herringbone shape, and the pressure roller motor 21, the left swing arm motor 31 and the right swing arm motor are independently installed and arranged, wherein the pressure roller motor 21 realizes the conveying of the core wire with tension maintained, and this scheme can adjust the speed difference of the pressure roller motor 21 through the left swing arm motor 31 or the right swing arm motor, and can accurately and efficiently adjust the pull ratio between the two, so that the equipment can adapt to various types of yarns and process requirements, and can also make corresponding adjustments to the moisture regain of different batches of yarns, so the quality of the finished chenille yarn is better, and the consistency of the product can be guaranteed; and the traditional equipment adopts a single-motor transfer box structure, and its mechanical structure is complex, the use and maintenance costs are high, and it is difficult to adjust the pull ratio (usually it is a fixed pull ratio of 1:1.07), and it is not competent for the production requirements of high-speed and high-quality chenille yarn;

[0038] In the installation of the left swing arm motor 31 or the right swing arm motor, this solution installs the motor shaft and the corresponding mounting bearing in a coaxial arrangement, which can greatly improve the rotation flexibility of the left swing arm component 3 and the right swing arm component and the stability of power input, and greatly reduce the installation structure, so that the left swing arm motor 31 or the right swing arm motor does not need complex mechanical transmission components, has the most ideal transmission efficiency, and can make the roller wheel 47 at the terminal run stably and efficiently. At the same time, since the roller wheel 47 will wear during the high-speed generation process, the speed compensation control is performed by the left swing arm motor 31 or the right swing arm motor, which can increase the service life of the roller and reduce the replacement cycle of the roller. Therefore, this solution has a simple mechanical structure, stable and reliable operation, and through precise speed adjustment of the three motors, efficient, accurate and high-quality chenille yarn manufacturing can be achieved.

Claims

1. A three-motor rotary head assembly for a chenille textile machine, characterized in that: The machine comprises a frame and a roller motor arranged on the frame, a left swing arm motor and a right swing arm motor are arranged on the frame, the roller motor, the left swing arm motor and the right swing arm motor are arranged in a herringbone structure, the left swing arm motor is connected to a left swing arm component, the right swing arm motor is connected to a right swing arm component, the left swing arm component and the right swing arm component are arranged symmetrically, mounting holes are arranged on the left and right sides of the frame, the left swing arm component and the right swing arm component are both provided with mounting bearings, the mounting bearings can be mounted in corresponding mounting holes, and the left swing arm component and the right swing arm component can rotate around the mounting bearings, and the center lines of the rotating shafts or transmission shafts of the left swing arm motor and the right swing arm motor are arranged in a coincident state with the center lines of the corresponding mounting bearings; The rotating shaft of the pressure roller motor is in a state of extending to both ends, and the left and right ends thereof are connected with pressure roller shafts, and the pressure roller shaft is matched with a pressure roller wheel; Transmission wheels are provided inside the left swing arm component and the right swing arm component, and motor gears are arranged at the front ends of the rotating shafts or transmission shafts of the left swing arm motor and the right swing arm motor, and the motor gears can mesh with the transmission wheels.

2. The three-motor rotary head assembly of the chenille spinning machine according to claim 1, characterized in that: The left swing arm component and the right swing arm component are arranged with roller shafts, roller shaft gears are arranged on the roller shafts, and the roller shaft gears can mesh with the transmission wheel. The front end of the roller shaft is arranged with a roller wheel, and the rear end of the roller shaft is arranged with a distance fine-tuning component.

3. The three-motor rotary head assembly of the chenille spinning machine according to claim 2, characterized in that: The width of the roller shaft gear is greater than the width of the transmission wheel.

4. The three-motor rotary head assembly of the chenille spinning machine according to claim 2, characterized in that: The distance fine-tuning component includes an adjusting screw sleeve, the outer wall of the adjusting screw sleeve is provided with an external thread, the inner wall of the shell of the left swing arm component and the right swing arm component is provided with an internal thread, the external thread and the internal thread can cooperate, the adjusting screw sleeve and the roller shaft are in a centrally aligned arrangement state, and the two are in a rotationally connected state.

5. The three-motor rotary head assembly of the chenille spinning machine according to claim 4, characterized in that: The adjusting screw sleeve is connected to the roller shaft with a bearing, the inner ring of the bearing is connected to the roller shaft, and the outer ring of the bearing is connected to the inner wall of the adjusting screw sleeve.

6. The three-motor rotary head assembly of the chenille spinning machine according to claim 5, characterized in that: A limiting nut is arranged on the external thread of the adjusting screw sleeve.

7. The three-motor rotary head assembly of the chenille spinning machine according to claim 4, characterized in that: A groove is arranged at the front end of the adjusting screw sleeve, and a sealing ring is arranged on the groove. The sealing ring is tightly fitted with the groove and the inner wall of the shell.

8. The three-motor rotary head assembly of the chenille spinning machine according to claim 2, characterized in that: A wire break alarm component is arranged on the frame, and the wire break alarm component includes an alarm porcelain wheel and a wire break sensor. The alarm porcelain wheel is arranged between the pressure roller shaft and the roller wheel in the core wire conveying path.

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