Transmission device and transmission method for cantilever type double-station material shaft

Abstract

The invention discloses a transmission device and a transmission method of a cantilever type double-station material shaft, in the aspect of the transmission device, the transmission device comprises a wall plate, a double-station disc is embedded in the wall plate, and two air swelling shafts are arranged on the double-station disc in a penetrating manner; a frame is mounted on the side wall of the wall plate, and a rotary gear motor and two driving motors are mounted on the frame; the rotary speed reduction motor is connected with the double-station disc through the transmission main shaft, the driving motor and the air expansion shaft are connected through the tooth-shaped chain transmission module, and the technical problem that in the prior art, due to the single-station design, shutdown adjustment is needed during switching, and consequently production continuity is insufficient is solved. In the aspect of a transmission method, a transmission main shaft is driven by a rotary gear motor to further drive a double-station disc to rotate; the two driving motors drive the two air swelling shafts to rotate, and the two air swelling shafts alternately work; when the production line speed changes, the tensioning chain wheel is loosened, and the chain wheel with the corresponding tooth number is replaced to adjust the transmission ratio.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical transmission, and specifically relates to a transmission device for a cantilever double-station material shaft, and also relates to a transmission method for a cantilever double-station material shaft. Background Art

[0002] In automated production equipment, a double-station transmission device is a key module for achieving high efficiency and multi-task collaboration. Traditional double-station transmission systems usually adopt the following structures: 1. The speed reducer and the actuator (such as a disc, etc.) are connected through a gear set or a multi-stage belt drive, resulting in a long transmission chain, large space occupation, and the need for regular lubrication and maintenance for gear transmission, and the belt drive is prone to wear and slip, affecting the positioning accuracy; 2. The transmission system is installed relying on a wall-mounted frame, and the motor and the speed reducer are usually fixed on the outside of the wallboard, resulting in a relatively high overall center of gravity and insufficient system stability. At the same time, the wallboard needs to bear the excess load of the transmission part, and thick plates need to be used and complex hole processing is required, with high costs and poor adjustment flexibility; 3. Traditional chain or belt drives have the defects of large meshing clearances and high noise, especially prone to vibration and wear under frequent start-stop or direction-changing working conditions, affecting the processing quality of products; 4. Existing cantilever loading and unloading devices usually adopt a single-station design and need to stop for adjustment during switching, resulting in insufficient production continuity, especially significant efficiency losses in high-load production lines; 5. The single-drive source structure is prone to vibration or wear due to uneven loads, and the gear / chain drive module has redundant design and high single-point failure risk; 6. Conventional transmission devices achieve speed regulation by replacing sprockets with fixed tooth numbers, but it is necessary to frequently disassemble components, making it difficult to meet the rapid change requirements of the production line speed. Summary of the Invention

[0003] The first object of the present invention is to provide a transmission device for a cantilever double-station material shaft, which solves the technical problem in the prior art that a single-station design is adopted and it is necessary to stop for adjustment during switching, resulting in insufficient production continuity.

[0004] The second object of the present invention is to provide a transmission method for a cantilever double-station material shaft.

[0005] The first technical solution adopted by the present invention is that a transmission device for a cantilever double-station material shaft includes a wallboard, in which a double-station disc is embedded, the double-station disc rotates in the wallboard, and two air shafts penetrate through the double-station disc, and both air shafts rotate on the double-station disc; A frame is installed on one side wall of the wallboard, a swing reduction motor is installed on the frame, and two drive motors are installed at the bottom of the frame; The swing reduction motor and the double-station disc are connected through a transmission main shaft, the transmission main shaft is key-connected to the swing reduction motor, and the transmission main shaft and the double-station disc are connected through a flange; The drive motor and the air shaft are connected through a toothed chain drive module.

[0006] The characteristics of the first technical solution of the present invention also lie in that: Toothed sprockets c are installed at the ends of both air shafts close to the frame; The toothed chain drive module includes toothed sprockets a and b installed on the outer periphery of the drive main shaft. The toothed sprockets a and b are connected by a sleeve. The toothed sprockets a and b rotate synchronously. The toothed sprocket a is close to the double-station disc. The toothed sprocket a is connected to one toothed sprocket c by a toothed chain a. The toothed sprocket b is connected to a drive motor by a toothed chain b; A double toothed sprocket is installed on the sleeve between the toothed sprockets a and b. The double toothed sprocket is connected to another toothed sprocket c by a toothed chain a. The double toothed sprocket is connected to another drive motor by a toothed chain b; Among them, the double toothed sprocket, the toothed sprocket a and the toothed sprocket b perform rotational motion relative to the drive main shaft.

[0007] Two bearings a are coaxially installed on the outer periphery of the drive main shaft. The drive main shaft is fixedly connected to the inner rings of the two bearings a. The outer rings of the two bearings a are respectively connected to the toothed sprocket a and the toothed sprocket b; A bearing b is fixedly connected to the outer wall of the sleeve. The inner ring of the bearing b is fixedly connected to the outer wall of the sleeve. The outer ring of the bearing b is fixedly connected to a double toothed sprocket.

[0008] Output shafts of both drive motors are key-connected with gears. The two gears are respectively connected to the two toothed sprockets c by chains.

[0009] Four sprocket brackets are installed on the side wall of the double-station disc close to the toothed chain a. Every two sprocket brackets form a group. A fixed shaft is installed on each sprocket bracket. A tensioning sprocket is rotatably connected to the fixed shaft. The two groups of tensioning sprockets respectively press the two toothed chains a.

[0010] The two air shafts are symmetrically arranged at 180° along the center of the double-station disc.

[0011] An adjusting plate is installed at the bottom of the frame. The drive motor is slidably connected to the adjusting plate.

[0012] The second technical solution adopted by the present invention is a transmission method for a cantilever double-station material shaft. The transmission device for the cantilever double-station material shaft described above is used and implemented according to the following steps: Start the rotary reduction motor, and the drive main shaft drives the double-station disc to perform rotational motion; start the two drive motors. One of the drive motors drives one air shaft to rotate through the double toothed sprocket, and the other drive motor drives the other air shaft to rotate through the toothed sprockets a and b. The two air shafts operate alternately; when the production line speed changes, loosen the tensioning sprocket and replace the sprocket with the corresponding number of teeth to adjust the transmission ratio.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the dual-station transmission structure and the sprocket coordinated drive technology, the present invention realizes that the station switching does not require shutdown and reset; by setting a drive motor and a rotary reduction motor, the transmission system is maintained to operate continuously during the station alternation, reducing the idling rate of the production line; by using a tensioning sprocket to compensate the chain tension, the problems of vibration and wear caused by the eccentric load of the traditional single drive source are solved. Through the cantilever frame design, the installation and maintenance of the transmission device are more convenient and efficient, and the stability of the system is enhanced. The drive motor is installed at the bottom of the frame, and the center of gravity is lowered and acts together with the cantilever frame, reducing the vibration influence of the transmission device, especially suitable for high-precision and high-torque production applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the transmission device of the cantilever dual-station material shaft of the present invention; Figure 2 is a schematic connection structure diagram of the rotary reduction motor and the dual-station disc in the transmission device of the cantilever dual-station material shaft of the present invention; Figure 3 is a schematic transmission structure diagram of the toothed chain in the transmission device of the cantilever dual-station material shaft of the present invention; Figure 4 is a schematic structural diagram of the frame in the transmission device of the cantilever dual-station material shaft of the present invention; Figure 5 is a schematic installation position structure diagram of the toothed sprocket in the transmission device of the cantilever dual-station material shaft of the present invention.

[0015] In the figure, 1. Wall panel, 2. Dual-station disc, 3. Air shaft, 4. Frame, 5. Mounting plate, 6. Top block a, 7. Adjusting plate, 8. Side floor feet, 9. Rotary reduction motor, 10. Transmission main shaft, 11. Double toothed sprocket, 12. Toothed sprocket a, 13. Toothed sprocket b, 14. Sleeve cup a, 15. Sleeve cup b, 16. Spacer sleeve a, 17. Spacer sleeve b, 18. Toothed chain a, 19. Tensioning sprocket, 20. Sprocket bracket, 21. Toothed chain b, 22. Drive motor, 23. Toothed sprocket c, 24. Long top block, 25. Top block b, 26. Rotary joint. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0017] Example 1 As Figures 1-5 shown in the figure, the drive device of the cantilever double-station material shaft disclosed by the present invention includes a wall panel 1. A double-station disc 2 is embedded in the wall panel 1. The double-station disc 2 makes a rotational movement within the wall panel 1. Two air shaft expansion shafts 3 penetrate through the double-station disc 2. Both of the two air shaft expansion shafts 3 make rotational movements on the double-station disc 2; A frame 4 is installed on one side wall of the wall panel 1. A swing reduction motor 9 is installed on the frame 4. Two drive motors 22 are installed at the bottom of the frame 4; The swing reduction motor 9 and the double-station disc 2 are connected by a transmission main shaft 10. The transmission main shaft 10 is key-connected to the swing reduction motor 9. The transmission main shaft 10 and the double-station disc 2 are connected by a flange; The drive motor 22 and the air shaft expansion shaft 3 are connected by a toothed chain drive module.

[0018] In this embodiment, the wall panel 1 serves as the supporting main structure, fixing the double-station disc and other transmission components to ensure the overall rigidity; the double-station disc 2 realizes the switching between two stations through rotational movement, supports the air shaft expansion shaft 3 and transmits the driving force of the swing reduction motor 9; the air shaft expansion shaft 3 serves as the material winding shaft, realizing the alternate operation of the two stations through independent rotational drive to improve the continuous production efficiency; the frame 4 integrates the swing reduction motor 9 and the drive motor 22 to form a modular transmission unit; the transmission main shaft 10 transmits the power of the swing reduction motor 9 to the double-station disc 2 through key connection and flange respectively to realize precise synchronous rotation; the toothed chain drive module: transmits the power of the drive motor 22 to the air shaft expansion shaft 3, adapts to high loads and reduces slippage; Through toothed chain drive, the transmission performance of the drive device is improved. The transmission efficiency of the toothed chain is as high as 98%. The service life reaches 12000 h with forced lubrication maintenance every 500 h, and it supports bidirectional drive; The present invention abandons the traditional gear transition and directly connects the transmission main shaft 10 and the double-station disc 2 by a flange. The zero-backlash flange direct connection structure realizes the high-efficiency and simplicity of the transmission link. The swing reduction motor 9 adopts an inclined tooth reduction motor, and its output end face is positioned by a high-precision stop. The transmission main shaft 10 and the double-station disc 2 are fixed by 6 groups of high-strength bolts arranged in a 60° star array to ensure error-free torque transmission. The design of this link reduces one-stage gear drive, eliminates the intermediate transmission pair through integrated design, shortens the axial dimension by more than 30%, and can effectively reduce the gear processing and assembly costs at the same time.

[0019] In actual use, the frame 4 of the present invention adopts an asymmetric cantilever external hanging structure up and down, and is connected to the outside of the wall panel through high-strength rectangular steel. The overall center of gravity is lowered by 60% compared with the traditional support installation layout, greatly reducing the vibration amplitude. Standardized installation holes are preset on the frame, and the position of the rotary reduction motor 9 and the position of the frame 4 are steplessly adjusted in cooperation with the U-shaped groove with a large aspect ratio of length to width, avoiding the high cost problem of customized drilling of traditional wall panels. In addition, a long top block 24 is installed on the lower side of the installation of the frame 4 and the wall panel 1, which can fix the position of the frame 4 after it is fully adjusted and positioned, prevent slipping, and ensure good accuracy of the frame 4 in the state of long-term high-speed operation. The frame 4 is composed of composite load-bearing members as a whole, and an "h"-shaped support system is formed by an installation plate 5, support beams, connecting plates and reinforcing ribs. The rotary reduction motor 9 is installed on the installation plate 5, and the transmission main shaft penetrates through the installation plate 5. The stress distribution of the frame 4 is uniform and the center of gravity layout is reasonable. Through the design of the cantilever frame 4, the frame 4 is composed of welded rectangular steel, making the installation and maintenance of the transmission device more convenient and efficient, and enhancing the stability of the system. The drive motor 22 is installed at the bottom of the frame 4, and the lower center of gravity and the cantilever frame 4 cooperate with each other, which can ensure that the vibration influence of the transmission device is reduced by about 40%, and is especially suitable for high-precision and high-torque production applications.

[0020] Embodiment 2 On the basis of Embodiment 1, toothed sprockets c23 are installed at the ends of both air shafts 3 close to the frame 4; The toothed chain transmission module includes toothed sprockets a12 and toothed sprockets b13 installed on the outer circumference of the transmission main shaft 10. The toothed sprockets a12 and toothed sprockets b13 are connected by a sleeve, and the toothed sprockets a12 and toothed sprockets b13 rotate synchronously. The toothed sprockets a12 are close to the double-station disc 2, and the toothed sprockets a12 are connected to one toothed sprocket c23 through a toothed chain a18, and the toothed sprockets b13 are connected to one drive motor 22 through a toothed chain b21; A double toothed sprocket 11 is installed on the sleeve between the toothed sprockets a12 and toothed sprockets b13. The double toothed sprocket 11 is connected to another toothed sprocket c23 through a toothed chain a18, and the double toothed sprocket 11 is connected to another drive motor 22 through a toothed chain b21; Among them, the double toothed sprocket 11, the toothed sprocket a12 and the toothed sprocket b13 make rotational movements relative to the transmission main shaft 10.

[0021] In this embodiment, two drive motors 22 and two toothed sprockets c23 drive the air shaft 3 in different working positions through a double toothed sprocket 11, a toothed sprocket a12, and a toothed sprocket b13. The drive motor 22 on the left drives the toothed sprocket a12 and the toothed sprocket b13 to rotate synchronously, further driving the toothed sprocket c23 on the left to rotate, that is, driving the air shaft 3 on the left to rotate; the drive motor 22 on the right drives the double toothed sprocket 11 to rotate relative to the toothed sprocket a12 and the toothed sprocket b13, or rotates synchronously with the toothed sprocket a12 and the toothed sprocket b13, further driving the toothed sprocket c23 on the right to rotate, that is, driving the air shaft 3 on the right to rotate; Embodiment 3 On the basis of Embodiment 2, two bearings a are coaxially installed on the outer periphery of the transmission main shaft 10. The transmission main shaft 10 is fixedly connected to the inner rings of the two bearings a, and the outer rings of the two bearings a are respectively connected to the toothed sprocket a12 and the toothed sprocket b13; A bearing b is fixedly connected to the outer wall of the sleeve. The inner ring of the bearing b is fixedly connected to the outer wall of the sleeve, and the outer ring of the bearing b is fixedly connected to a double toothed sprocket 11.

[0022] In this embodiment, the transmission part uses a silent toothed chain to replace the traditional belt or roller chain. The tooth profile of the chain plate of the toothed chain and the tooth profile of the sprocket are in conjugate surface contact, which can achieve multi tooth simultaneous meshing. At a speed of 400 m / min - 600 m / min, its transmission accuracy can be ensured within ±0.02 mm, and the noise is reduced to below 30 dB. During its specific operation, the toothed sprocket a12 and the toothed sprocket b13 are fixed on the main shaft shoulder by bearings, and the air shaft 3 on the left side of the double station disc 2 is driven to rotate through the drive motor 22 and the toothed chain a18; similarly, to achieve the same speed rotation of the two stations, a double toothed sprocket 11 with the same number of teeth is sleeved on the sleeve between the toothed sprocket a12 and the toothed sprocket b13, and it is limited by a retaining ring. The drive motor 22 on the right and the toothed chain a18 drive the air shaft 3 on the right side of the double station disc 2 to rotate. Different gear sets on the same transmission main shaft 10 achieve the conversion of working positions under different working requirements through the phase difference.

[0023] Embodiment 4 On the basis of Embodiment 2, gears are key connected to the output shafts of the two drive motors 22, and the two gears are respectively connected to the two toothed sprockets c23 through chains.

[0024] In this embodiment, power is transmitted through a key connected gear, and the chain drive adapts to the requirements of the spatial layout and is convenient for adjusting the transmission ratio.

[0025] Embodiment 5 Based on Embodiment 2, four sprocket supports 20 are installed on the side wall of the double-station disk 2 near the toothed chain a18. Every two sprocket supports 20 form a group. A fixed shaft is installed on each sprocket support 20, and a tensioning sprocket 19 is rotatably connected to the fixed shaft. The two groups of tensioning sprockets 19 respectively press the two toothed chains a18.

[0026] In this embodiment, the tensioning sprocket 19 is used to adjust the tension of the toothed chain a18 and is installed on the wall panel 1 through the sprocket support 20 with a U-shaped slot hole, so as to realize the adjustment of different tension ranges of the toothed chain a18. The replacement of the entire toothed chain a18 can be completed by unilateral disassembly, and the maintenance time of the process can be reduced by 40%.

[0027] Embodiment 6 Based on Embodiment 1, two air shafts 3 are symmetrically arranged at 180° along the center of the double-station disk 2.

[0028] In this embodiment, the double-station load is balanced by the 180° symmetric distribution, reducing the eccentric vibration when the double-station disk 2 rotates.

[0029] Embodiment 7 Based on Embodiment 1, an adjusting plate 7 is installed at the bottom of the frame 4, and the driving motor 22 is slidably connected to the adjusting plate 7.

[0030] In this embodiment, the two driving motors 22 are fixed to the lower side inside the frame through the adjusting plate 7, and the positions of the motors are adjusted in the left and right directions; by sliding to adjust the position of the driving motor 22, the requirements of different chain lengths are adapted, and the transmission tension is optimized.

[0031] Combined with Embodiments 1-7, when the transmission device of the cantilever double-station material shaft of the present invention is actually used, the installation surface of the frame 4 on the wall panel 1 can also be fixed by setting the top block a11 to prevent displacement that may occur during the production process; By setting the side floor feet 8 for the overall installation and fine adjustment of the transmission device to the ground; By setting the cup a14 to support the transmission main shaft 10 and installing bearings to realize the rotational movement of the transmission main shaft 10 relative to the frame 4; by setting the cup b15 for the fixed installation between the air shaft 3 and the double-station disk 2, and the bearings in the cup b15 realize the rotational movement of the air shaft 3; by setting the spacer sleeve a16 for the lateral positioning between the two bearings inside the cup a14; by setting the spacer sleeve b17 for the lateral fixation of the inner and outer end bearings of the cup a14 and the locking nut; by setting the top block b25 to ensure the long-term accuracy of the operation of the rotary reduction motor 9, and the mounting plate 5 of the rotary reduction motor 9 is fixed and locked through its position on the cross beam of the frame 4; by setting the rotary joint 26 for the wiring connection between the fixed line and the transmission main shaft 10.

[0032] The present invention also discloses a driving method for a cantilever dual-station material shaft. Using the above-described driving device for the cantilever dual-station material shaft, it is implemented according to the following steps: Start the rotary reduction motor 9, and the driving main shaft 10 drives the dual-station disc 2 to perform a rotational motion; start two driving motors 22, one of the driving motors 22 drives one of the air shafts 3 to rotate through a double-row toothed sprocket 11, and the other driving motor 22 drives the other air shaft 3 to rotate through a toothed sprocket a 12 and a toothed sprocket b 13, and the two air shafts 3 operate alternately; when the production line speed changes, loosen the tensioning sprocket 19 and replace the sprocket with the corresponding number of teeth to adjust the transmission ratio.

[0033] In this embodiment, the two air shafts are controlled by independent driving motors 22 to operate alternately to achieve continuous production. By adjusting the position of the tensioning sprocket 19 to replace the sprocket, the requirement for the change in the production line speed is matched.

[0034] Finally, it should also be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the presence of additional identical elements in the process, method, article or device including the said element.

[0035] In the description of the embodiments of this specification, a progressive approach is adopted. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The transmission device of a cantilever type double-station material shaft, characterized in that, It includes a wall panel (1) with a double-station disc (2) embedded therein. The double-station disc (2) rotates within the wall panel (1). Two air-expansion shafts (3) penetrate through the double-station disc (2), and both of the two air-expansion shafts (3) rotate on the double-station disc (2). A frame (4) is installed on one side wall of the wall panel (1), a rotary reduction motor (9) is installed on the frame (4), and two drive motors (22) are installed at the bottom of the frame (4). The rotary reduction motor (9) and the double-station disc (2) are connected by a transmission main shaft (10). The transmission main shaft (10) is key-connected to the rotary reduction motor (9), and the transmission main shaft (10) is connected to the double-station disc (2) by a flange. The drive motor (22) and the air-expansion shaft (3) are connected by a toothed chain transmission module.

2. The drive device of the cantilever dual-station material shaft according to claim 1, characterized in that, Toothed sprockets c (23) are installed at the ends of the two air-expansion shafts (3) close to the frame (4). The toothed chain transmission module includes a toothed sprocket a (12) and a toothed sprocket b (13) installed on the outer periphery of the transmission main shaft (10). The toothed sprocket a (12) and the toothed sprocket b (13) are connected by a sleeve. The toothed sprocket a (12) and the toothed sprocket b (13) rotate synchronously. The toothed sprocket a (12) is close to the double-station disc (2), and the toothed sprocket a (12) is connected to one toothed sprocket c (23) by a toothed chain a (18). The toothed sprocket b (13) is connected to one drive motor (22) by a toothed chain b (21). A double toothed sprocket (11) is installed on the sleeve between the toothed sprocket a (12) and the toothed sprocket b (13). The double toothed sprocket (11) is connected to another toothed sprocket c (23) by a toothed chain a (18), and the double toothed sprocket (11) is connected to another drive motor (22) by a toothed chain b (21). Among them, the double toothed sprocket (11), the toothed sprocket a (12), and the toothed sprocket b (13) rotate relative to the transmission main shaft (10).

3. The drive device of the cantilever double-station material shaft according to claim 2, characterized in that, Two bearings a are coaxially installed on the outer periphery of the transmission main shaft (10). The transmission main shaft (10) is fixedly connected to the inner rings of the two bearings a, and the outer rings of the two bearings a are respectively connected to the toothed sprocket a (12) and the toothed sprocket b (13). A bearing b is fixedly connected to the outer wall of the sleeve. The inner ring of the bearing b is fixedly connected to the outer wall of the sleeve, and the outer ring of the bearing b is fixedly connected to the double toothed sprocket (11).

4. The drive device of the cantilever dual-station material shaft according to claim 2, characterized in that, Gears are key-connected to the output shafts of the two drive motors (22), and the two gears are respectively connected to the two toothed sprockets c (23) by chains.

5. The drive device of the cantilever double-station material shaft according to claim 2, characterized in that, Four sprocket brackets (20) are installed on the side wall of the double-station disc (2) close to the toothed chain a (18). Every two sprocket brackets (20) form a group. A fixed shaft is installed on each sprocket bracket (20), and a tensioning sprocket (19) is rotatably connected to the fixed shaft. The two groups of tensioning sprockets (19) respectively press the two toothed chains a (18).

6. The drive device of the cantilever double-station material shaft according to claim 1, characterized in that, The two air-expansion shafts (3) are symmetrically arranged at 180° along the center of the double-station disc (2).

7. The drive device of the cantilever double-station material shaft according to claim 1, characterized in that, An adjusting plate (7) is installed at the bottom of the frame (4), and the drive motor (22) is slidably connected to the adjusting plate (7).

8. A driving method for a cantilever dual-station material shaft, adopting the driving device for a cantilever dual-station material shaft as described in any one of claims 2-5, characterized in that, It is implemented according to the following steps: Start the rotary reduction motor (9), and the transmission main shaft (10) drives the double-station disc (2) to make a rotary motion; start two drive motors (22), one of the drive motors (22) drives one of the air shafts (3) to rotate through the double-chain sprockets (11), and the other drive motor (22) drives the other air shaft (3) to rotate through the sprocket a (12) and the sprocket b (13), and the two air shafts (3) operate alternately; when the production line speed changes, loosen the tensioning sprocket (19) and replace the sprocket with the corresponding number of teeth to adjust the transmission ratio.

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