A drive arrangement for a drafting roller of a ring spinning frame

Abstract

The application relates to a car transmission device for drafting rollers of a ring spinning frame, which comprises a mounting frame (1), front roller transmission devices (2), middle roller transmission devices (3) and rear roller transmission devices (4), the mounting frame (1) comprises left wall plates (11), right wall plates (12) and connecting columns (13), two front roller transmission devices (2) are symmetrically arranged on the front and back sides of the mounting frame (1), the front roller transmission device (2) comprises a front driving motor (21) and a gear box (22), the middle roller transmission device (3) comprises a middle driving motor (31), a middle transmission shaft one (32), a middle transmission shaft two (33) and a middle transmission shaft three (34), and the rear roller transmission device (4) comprises a rear driving motor (41) and a rear transmission shaft (42). The application has novel structure and practical function, can eliminate mechanical waves caused by torsional vibration, is beneficial to improving yarn quality, can conveniently and quickly adjust the drafting multiple, and can realize stepless change of the drafting multiple.

Description

Technical Field

[0001] This invention relates to a ring spinning machine, and more specifically to a drive device for the drafting rollers of a ring spinning machine. Background Technology

[0002] Ring spinning frames are indispensable textile machinery in the spinning process and are among the most widely used in textile mills. In order to produce a specific quantity of sliver using the drafting rollers in a ring spinning frame, it is essential to maintain a certain ratio of rotational speed among the drafting rollers and a certain distance between them. For example... Figure 5 As shown, the drafting roller drive mechanism of a conventional ring spinning frame is as follows: a main drive motor drives the front gear drive device through a two-stage belt drive mechanism and a single-stage gear drive mechanism. The power of the front gear drive device is input from the front power gear and outputs in three paths. The two side paths drive the front rollers on both sides through the meshing of driven gears. The middle path outputs directly through the drive shaft of the front power gear to drive the intermediate gear drive device. The intermediate gear drive device outputs power to drive the middle and rear gear drive devices. The power of the middle and rear gear drive devices is input from the middle and rear power gears and drives the middle and rear rollers to rotate through gear meshing. The conventional drafting roller drive mechanism is installed at the head of the ring spinning frame. The main drive motor is mounted on the bottom plate of the head, the front gear drive device is mounted on the front wall plate of the head, and the middle and rear gear drive devices are mounted on the small wall plate of the head. The traditional drafting roller drive method of this ring spinning frame has the following three shortcomings: First, when changing spinning process parameters in the spinning mill, adjusting the drafting roller ratio and the drafting roller spacing requires adjusting multiple transmission gears, making the work of equipment managers complicated and inefficient. Second, with the application of digital design concepts and the emergence of new spinning processes, such as stepless drafting ratio adjustment, real-time computer networking production, and slub yarn, this traditional drafting roller drive method cannot achieve these features. Third, the drafting roller drive mechanism is installed at the head of the spinning machine, driving the front roller, middle roller, and rear roller to rotate towards the middle and rear of the machine. As the number of spindles in the ring spinning machine increases, the length of the drafting roller also increases. Such long rollers are prone to torsional vibration during the drafting process, forming mechanical waves that affect yarn quality.

[0003] As ring spinning frames continue to develop towards digitalization, automation, and extra-long carriages, the design concept of CNC long carriage ring spinning frames has been introduced. Therefore, it is imperative to design a new type of in-car drafting roller transmission device suitable for CNC long carriage ring spinning frames to solve the problems existing in the drafting roller transmission device of traditional ring spinning frames. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a mid-car transmission device for the drafting rollers of ring spinning machines. This device features a novel structure, practical function, and a rational mid-car transmission that enables bidirectional roller drafting drive from the center of the machine to the front and rear, eliminating mechanical waves caused by torsional vibration and improving yarn quality. The rational four-motor layout allows for convenient and quick adjustment of the drafting ratio, simplifying operation and improving work efficiency. It also enables stepless adjustment of the drafting ratio, has a reasonable and compact transmission structure, a short transmission route, precise transmission, and low production costs.

[0005] The technical solution adopted in this invention is: a transmission device for the drafting roller of a ring spinning machine, comprising a mounting frame 1, a front roller transmission device 2, a middle roller transmission device 3, and a rear roller transmission device 4. The mounting frame 1 includes a left wall plate 11, a right wall plate 12, and connecting columns 13. Multiple connecting columns 13 are disposed between the left wall plate 11 and the right wall plate 12, and the left wall plate 11 and the right wall plate 12 are fixedly connected together by the connecting columns 13. Two front roller transmission devices 2 are symmetrically disposed on the front and rear sides of the mounting frame 1. The front roller transmission device 2 includes a front drive motor 21 and a gearbox 22. The gearbox 22 is disposed between the left wall plate 11 and the right wall plate 12, and the front drive motor 21 is mounted on... On gearbox 22, a front drive pulley 23 is mounted on the output shaft of the front drive motor 21, and a front driven pulley 24 is mounted on the input shaft of gearbox 22. The front drive pulley 23 is connected to the front driven pulley 24 via a front synchronous belt 25. The middle roller transmission device 3 includes a middle drive motor 31, a first middle transmission shaft 32, a second middle transmission shaft 33, and a third middle transmission shaft 34. One first middle transmission shaft 32, four second middle transmission shafts 33, and two third middle transmission shafts 34 are arranged parallel to the output shaft of the middle drive motor 31. The middle drive motor 31 is mounted on the left wall plate 11. The two ends of the first middle transmission shaft 32 are rotatably connected to the left wall plate 11 and the right wall plate 12 respectively via bearings. The four second middle transmission shafts 33... Two corresponding intermediate drive shafts 34 are arranged, with bearing seats rotatably mounted on the inner end of the second intermediate drive shaft 33. The bearing seats are connected to the left wall plate 11 and the right wall plate 12 respectively. Two intermediate drive shafts 34 are arranged correspondingly, with the inner ends of the third intermediate drive shafts 34 connected to the left wall plate 11 and the right wall plate 12 respectively. The output shaft of the intermediate drive motor 31 is equipped with an intermediate driving pulley 311, and the intermediate driven pulley 321 is equipped on the first intermediate drive shaft 32. The intermediate driving pulley 311 is connected to the intermediate driven pulley 321 through the intermediate synchronous belt 35. The left and right ends of the first intermediate drive shaft 32 are equipped with intermediate driving pulleys 322 respectively, and the outer end of the second intermediate drive shaft 33 is equipped with intermediate driven pulleys 331. The outer end of the third intermediate drive shaft 34 is... A driven pulley 341 is rotatably mounted on the end via a bearing. The driven pulley 322, driven pulley 331, and driven pulley 341 are connected together via a synchronous belt 36. The synchronous belt 36 is a double-sided toothed synchronous belt. The rear roller transmission device 4 includes a rear drive motor 41 and a rear transmission shaft 42. The rear drive motor 41 is mounted on the left wall plate 11. The two ends of the rear transmission shaft 42 are rotatably connected to the left wall plate 11 and the right wall plate 12 via bearings, respectively. A rear drive pulley 43 is mounted on the output shaft of the rear drive motor 41. A rear driven pulley 44 is mounted on the rear transmission shaft 42. The rear drive pulley 43 is connected to the rear driven pulley 44 via a synchronous belt 45.

[0006] A further improvement is that the front end of the output shaft of the gearbox 22 is connected to the front roller connecting shaft 26 via a coupling, and the front roller connecting shaft 26 is rotatably connected to the support 27 via a bearing.

[0007] A further improvement is that a right-angle mounting plate 28 is installed on the gearbox 22, the front drive motor 21 is installed on the vertical plate of the right-angle mounting plate 28, and the horizontal plate of the right-angle mounting plate 28 is provided with an elongated mounting hole, in which a fastening screw is provided. The horizontal plate of the right-angle mounting plate 28 is connected to the gearbox 22 by the fastening screw.

[0008] A further improvement is that the central drive motor 31 is mounted on the left wall panel 11 via a central mounting plate 37. The central mounting plate 37 has an elongated mounting hole with a fastening screw inside. The central mounting plate 37 is connected to the left wall panel 11 via the fastening screw.

[0009] A further improvement is that the rear drive motor 41 is mounted on the left wall panel 11 via a rear mounting plate 46. The rear mounting plate 46 has an elongated mounting hole with a fastening screw inside. The rear mounting plate 46 is connected to the left wall panel 11 via the fastening screw.

[0010] Compared with the prior art, the present invention has the following advantages: novel structure, practical function, reasonable in-car transmission realizes bidirectional roller drafting drive from the center of the car to the front and rear of the car, eliminates mechanical waves caused by torsional vibration, which is conducive to improving yarn quality, reasonable four-motor layout allows for convenient and quick adjustment of drafting ratio, simplifies operation, improves work efficiency, can realize stepless change of drafting ratio, reasonable and compact transmission structure, short transmission route, precise transmission, and low production cost. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention.

[0012] Figure 2 This is a schematic diagram of the transmission mechanism of the present invention.

[0013] Figure 3 This is a schematic diagram of the structure of the second transmission shaft in this invention.

[0014] Figure 4 This is a schematic diagram of the structure of the transmission shaft three in this invention.

[0015] Figure 5 This is a schematic diagram of the drafting roller drive in a conventional ring spinning machine. Detailed Implementation

[0016] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.

[0017] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a transmission device for the drafting roller of a ring spinning machine includes a mounting frame 1, a front roller transmission device 2, a middle roller transmission device 3, and a rear roller transmission device 4.

[0018] The mounting frame 1 includes a left wall panel 11, a right wall panel 12, and connecting columns 13. Multiple connecting columns 13 are arranged between the left wall panel 11 and the right wall panel 12. The left wall panel 11 and the right wall panel 12 are fixedly connected together by the connecting columns 13. The left wall panel 11 and the right wall panel 12 are fixedly mounted on the beam of the ring spinning machine.

[0019] Two front roller drive units 2 are symmetrically arranged on the front and rear sides of the mounting frame 1. Each front roller drive unit 2 includes a front drive motor 21 and a gearbox 22. The gearbox 22 is a single-input, double-output gear transmission mechanical component used to transmit power and regulate rotational speed. It has one input shaft and two output shafts. Power is input through the input shaft and transmitted to the two output shafts via a multi-stage gear transmission. The two output shafts output power to both sides respectively. An oil sump is provided inside the gearbox, with lubricating oil submerging the gears for lubrication and cooling. The gearbox 22 is located between the left wall plate 11 and the right wall plate 12. The front drive motor 21 is mounted on the gearbox 22, and a front drive pulley 23 is mounted on the output shaft of the front drive motor 21. A front driven pulley 24 is mounted on the input shaft of gearbox 22. A front driving pulley 23 is connected to the front driven pulley 24 via a front synchronous belt 25. The front roller connecting shaft 26 is connected to the front output shaft of gearbox 22 via a coupling. A support 27 is rotatably connected to the front roller connecting shaft 26 via bearings. The support 27 is fixedly mounted on the beam of the ring spinning frame, providing rotational support for the front roller connecting shaft 26. The output shaft of the front drive motor 21 rotates, driving the front driving pulley 23 to rotate. This rotation, via the front synchronous belt 25, drives the front driven pulley 24 to rotate. The front driven pulley 24 then drives the input shaft of gearbox 22 to rotate. Through the transmission of gears inside gearbox 22, the output shaft rotates and outputs power. This output power, via the front roller connecting shaft 26, drives the front roller to rotate. Gearbox 22 is fixedly installed on the beam of the ring spinning machine. A right-angle mounting plate 28 is installed on gearbox 22. The front drive motor 21 is installed on the vertical plate of the right-angle mounting plate 28. The horizontal plate of the right-angle mounting plate 28 has an oblong mounting hole with a fastening screw inside. The horizontal plate of the right-angle mounting plate 28 is connected to the gearbox 22 by the fastening screw. The mounting position of the right-angle mounting plate 28 on the gearbox 22 is movable, which can tension the front timing belt 25. The middle roller transmission device 3 includes a middle drive motor 31, a first middle drive shaft 32, a second middle drive shaft 33, and a third middle drive shaft 34. One first middle drive shaft 32, four second middle drive shafts 33, and two third middle drive shafts 34 are arranged parallel to the output shaft of the middle drive motor 31. 1. Installed on the left wall panel 11, the two ends of the first central drive shaft 32 are rotatably connected to the left wall panel 11 and the right wall panel 12 respectively via bearings. Four second central drive shafts 33 are arranged in pairs, and bearing seats are rotatably installed on the inner ends of the second central drive shafts 33, which are connected to the left wall panel 11 and the right wall panel 12 respectively. Two third central drive shafts 34 are arranged in pairs, and the inner ends of the third central drive shafts 34 are connected to the left wall panel 11 and the right wall panel 12 respectively. A central drive pulley 311 is installed on the output shaft of the central drive motor 31, and a central driven pulley 321 is installed on the first central drive shaft 32. The central drive pulley 311 is connected to the central driven pulley 321 via a central synchronous belt 35. Second central drive pulleys 322 are installed on the left and right ends of the first central drive shaft 32 respectively.A driven pulley 331 is mounted on the outer end of the second central drive shaft 33, and a driven pulley 341 is rotatably mounted on the outer end of the third central drive shaft 34 via a bearing. The second central drive pulley 322, the second central driven pulley 331, and the third central driven pulley 341 are connected together by a second central synchronous belt 36, which is a double-sided toothed synchronous belt. The output shaft of the central drive motor 31 rotates, driving the first central drive pulley 311 to rotate. This rotation, through the transmission of the first central synchronous belt 35, drives the first central driven pulley 321 to rotate. The first central driven pulley 321 then drives the first central drive shaft 32 to rotate. The first central drive shaft 32 carries... The rotating drive pulley 322 drives the two driven pulleys 331 to rotate simultaneously via the intermediate timing belt 36. The driven pulleys 331 drive the intermediate transmission shaft 33 to rotate, which in turn drives the intermediate roller to rotate via gear meshing. The intermediate drive motor 31 is mounted on the left wall plate 11 via a mounting plate 37. The mounting plate 37 has an elongated mounting hole with a fastening screw inside. The mounting plate 37 is connected to the left wall plate 11 via the fastening screw. The mounting position of the mounting plate 37 on the left wall plate 11 is movable, allowing for tensioning of the intermediate timing belt 35.

[0020] The rear roller transmission device 4 includes a rear drive motor 41 and a rear drive shaft 42. The rear drive motor 41 is mounted on the left wall plate 11. The two ends of the rear drive shaft 42 are rotatably connected to the left wall plate 11 and the right wall plate 12 respectively via bearings. A rear drive pulley 43 is mounted on the output shaft of the rear drive motor 41, and a rear driven pulley 44 is mounted on the rear drive shaft 42. The rear drive pulley 43 is connected to the rear driven pulley 44 via a rear synchronous belt 45. When the output shaft of the rear drive motor 41 rotates, it drives the rear drive pulley 43 to rotate, thereby... The rear synchronous belt 45 drives the rear driven pulley 44 to rotate, which in turn drives the rear drive shaft 42 to rotate. The rear drive shaft 42 drives the rear roller to rotate through gear meshing. The rear drive motor 41 is mounted on the left wall plate 11 via the rear mounting plate 46. The rear mounting plate 46 has an elongated mounting hole with a fastening screw inside. The rear mounting plate 46 is connected to the left wall plate 11 via the fastening screw. The mounting position of the rear mounting plate 46 on the left wall plate 11 can be moved to tension the rear synchronous belt 45.

[0021] The front drive motor 21 drives the front roller to rotate, the middle drive motor 31 drives the middle roller to rotate, and the rear drive motor 41 drives the rear roller to rotate. The draft ratio between the front roller, middle roller, and rear roller can be adjusted conveniently and quickly by adjusting the speed of the motors. There is no need to change the gears, which simplifies the operation, improves the work efficiency, and can achieve stepless change of draft ratio.

[0022] Not limited to this, any variations or substitutions conceived without inventive effort should be included within the scope of protection of this invention. Therefore, the scope of protection of this invention should be determined by the scope defined in the claims.

Claims

1. A transmission device for the drafting roller of a ring spinning machine, characterized in that, The system includes a mounting frame (1), a front roller drive (2), a middle roller drive (3), and a rear roller drive (4). The mounting frame (1) includes a left wall plate (11), a right wall plate (12), and connecting columns (13). Multiple connecting columns (13) are arranged between the left wall plate (11) and the right wall plate (12). The left wall plate (11) and the right wall plate (12) are fixedly connected together by the connecting columns (13). Two front roller drive devices (2) are symmetrically arranged on the front and rear sides of the mounting frame (1). Each front roller drive device (2) includes a front drive motor (21) and a gearbox (22). The gearbox (22) is arranged between the left wall plate (11) and the right wall plate (12), and the front drive motor (21) is mounted on the gearbox (22). The output shaft of the front drive motor (21) is equipped with a front drive pulley (23), and the input shaft of the gearbox (22) is equipped with a front driven pulley (24). The front drive pulley (23) is connected to the front driven pulley (24) via a front synchronous belt (25). The middle roller transmission device (3) includes a middle drive motor (31), a middle transmission shaft one (32), a middle transmission shaft two (33), and a middle transmission shaft three (34). One middle transmission shaft one (32), four middle transmission shaft two (33), and two middle transmission shaft three (34) are arranged parallel to the output shaft of the middle drive motor (31). The middle drive motor (31) is mounted on the left wall plate (11). The two ends of the middle transmission shaft one (32) are respectively connected to the left wall plate (11) and the right wall plate (12) via bearings. 2) Rotary connection: Four intermediate drive shafts (33) are arranged in pairs. Bearing seats are rotatably installed on the inner ends of intermediate drive shafts (33). The bearing seats are connected to the left wall plate (11) and the right wall plate (12) respectively. Two intermediate drive shafts (34) are arranged in pairs. The inner ends of intermediate drive shafts (34) are connected to the left wall plate (11) and the right wall plate (12) respectively. The output shaft of the intermediate drive motor (31) is equipped with intermediate drive pulley 1 (311). The intermediate driven pulley 1 (321) is installed on intermediate drive shaft 1 (32). The intermediate drive pulley 1 (311) is connected to the intermediate driven pulley 1 (321) through intermediate synchronous belt 1 (35). The left and right ends of intermediate drive shaft 1 (32) are equipped with intermediate drive pulley 2 (322) respectively. A driven pulley 2 (331) is installed on the outer end of the second (33), and a driven pulley 3 (341) is rotatably installed on the outer end of the third (34) of the third (34) of the third (34) of the third (34) of the third (34) of the third (322) of the third (322) of the third (331) of the third (341) of the third (341) of the third (32 ...A rear driven pulley (44) is mounted on the rear drive shaft (42), and the rear driving pulley (43) is connected to the rear driven pulley (44) via a rear synchronous belt (45).

2. The in-car transmission device for the drafting roller of a ring spinning machine according to claim 1, characterized in that, The front end of the output shaft of the gearbox (22) is connected to the front roller connecting shaft (26) via a coupling, and the front roller connecting shaft (26) is rotatably connected to the support (27) via a bearing.

3. The in-car transmission device for the drafting roller of a ring spinning machine according to claim 1, characterized in that, A right-angle mounting plate (28) is installed on the gearbox (22). The front drive motor (21) is installed on the vertical plate of the right-angle mounting plate (28). The horizontal plate of the right-angle mounting plate (28) is provided with an elongated mounting hole and a fastening screw is provided in the elongated mounting hole. The horizontal plate of the right-angle mounting plate (28) is connected to the gearbox (22) by the fastening screw.

4. The in-car transmission device for the drafting roller of a ring spinning machine according to claim 1, characterized in that, The central drive motor (31) is mounted on the left wall plate (11) via the central mounting plate (37). The central mounting plate (37) has an elongated mounting hole and a fastening screw inside the elongated mounting hole. The central mounting plate (37) is connected to the left wall plate (11) via the fastening screw.

5. The in-car transmission device for the drafting roller of a ring spinning machine according to claim 1, characterized in that, The rear drive motor (41) is mounted on the left wall panel (11) via the rear mounting plate (46). The rear mounting plate (46) has an elongated mounting hole with a fastening screw inside. The rear mounting plate (46) is connected to the left wall panel (11) via the fastening screw.

Images