Main shaft double-servo control device of tire building machine

Abstract

The utility model discloses a tire building machine main shaft double-servo control device which comprises a machine frame, a first servo motor is arranged on the top of the left end of the machine frame, the first servo motor is in transmission connection with a first belt wheel through a speed reducer coupler, the first belt wheel drives a second belt wheel to rotate through a first belt, and the second belt wheel is fixed on the outer side of the middle end of an outer shaft. The left half end of the outer shaft is fixed inside the left wall and the right wall of the main machine box, the inner shaft is arranged inside the outer shaft, the speed converter is installed at the right end of the inner shaft, the left side of the outer ring of the speed converter is fixedly connected with the right end of the third belt wheel, and the third belt wheel drives the fourth belt wheel to rotate through the second belt. According to the device, the mechanical structure is simple, the structure has universality, and the phenomenon that installation and later maintenance are difficult does not occur.

Description

Technical Field

[0001] The utility model relates to the technical field of tire processing equipment, in particular to a main shaft dual servo control device for a tire building machine. Background Art

[0002] In the complex tire molding process, due to the large number of material components, the bonding drum and the belt drum are required to have the functions of rotation and variable circumference (width). The industry generally adopts the principle of single motor with electromagnetic clutch, pneumatic brake and differential control.

[0003] The existing tire building machine control devices on the market have complex control mechanical structures and are not universal, which generally results in difficulties in installation and subsequent maintenance. Therefore, a dual-servo control device for the main shaft of a tire building machine is proposed to address the above problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A dual-servo control device for a main shaft of a tire forming machine comprises a frame, a first servo motor is arranged on the top of the left end of the frame, the first servo motor is connected to the first pulley through a reducer coupling, the first pulley drives the second pulley to rotate through a first belt, the second pulley is fixed on the outside of the middle end of an outer shaft, the left half end of the outer shaft is fixed inside the left and right walls of a main box, an inner shaft is arranged inside the outer shaft, a speed converter is arranged on the right end of the inner shaft, the left side of the outer ring of the speed converter is fixedly connected to the right end of the third pulley, the third pulley drives the fourth pulley to rotate through the second belt, the fourth pulley and the fifth pulley are respectively fixed on the two ends of a rotating rod, the fifth pulley drives the sixth pulley to rotate through the third belt, the sixth pulley is connected to the second servo motor through a reducer coupling, a distributor ring is arranged between the second pulley and the third pulley, and the distributor ring is installed on the outside of the outer shaft.

[0006] Preferably, the bottom of the second servo motor is fixed to the top of the rear side of the middle end of the frame.

[0007] Preferably, the bottom of the main chassis is fixedly connected to the top of the left half of the frame, and the first servo motor is arranged inside the main chassis.

[0008] Preferably, the right side of the rear end of the main chassis is fixedly connected to the left end of the support plate.

[0009] Preferably, an auxiliary frame is provided at the bottom of the support plate, and the number of the auxiliary frames is plural and the arrangement is the same.

[0010] Preferably, the auxiliary frame includes a limit frame, the limit blocks on the inner sides of the left and right walls of the limit frame are slidably connected to the side walls of the limit grooves at both ends of the clamp frame, the front end of the adjustment bolt passes through the limit frame and is connected to the inside of the rear end of the clamp frame, and a tensioning wheel is installed at the front end of the clamp frame.

[0011] Preferably, the first pulley, the second pulley, the third pulley, the fourth pulley, the fifth pulley and the sixth pulley are all toothed pulleys.

[0012] Preferably, the first servomotor is relatively large to be responsible for the high inertia rotation of the drum.

[0013] Compared with the prior art, the beneficial effects of the utility model are: 1. Reduced cost: the original electromagnetic clutch, pneumatic brake and differential are eliminated, reducing costs; 2. Simple control logic: no differential means one less absolute encoder calculation and analysis system that is different from the servo; 3. Efficient positioning: due to separate control and independent absolute position, there is no need to frequently return to the origin, and the angle or circumference positioning is efficient; 4. Easy maintenance: simple, separated transmission structure and sufficient space will make later maintenance convenient and efficient, and no longer need to disassemble and maintain layer by layer; 5. The device can adjust the tightness of the first belt and the second belt to increase the stability during transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0017] Figure 3 It is a right side structural schematic diagram of the utility model.

[0018] Explanation of the reference numerals in the figure: frame 1, first servo motor 2, first pulley 3, first belt 4, second pulley 5, outer shaft 6, inner shaft 7, speed converter 8, third pulley 9, second belt 10, fourth pulley 11, rotating rod 12, fifth pulley 13, third belt 14, sixth pulley 15, second servo motor 16, support plate 17, clamping plate frame 18, tensioning wheel 19, limit frame 20, adjustment bolt 21, distributor ring 22, main chassis 101. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1-3The utility model provides an embodiment: a dual-servo control device for the main shaft of a tire building machine, including a frame 1, a first servo motor 2 is installed on the top of the left end of the frame 1, the first servo motor 2 is connected to the first pulley 3 through a reducer coupling, the first servo motor 2 can drive the first pulley 3 to rotate, the first pulley 3 drives the second pulley 5 to rotate through the first belt 4, the second pulley 5 is fixed to the outside of the middle end of the outer shaft 6, the rotation of the second pulley 5 can drive the outer shaft 6 to rotate, the left half end of the outer shaft 6 is fixed inside the left and right walls of the main case 101, the outer shaft 6 rotates in the through holes on the left and right walls of the main case 101, an inner shaft 7 is arranged inside the outer shaft 6, a speed converter 8 is installed on the right end of the inner shaft 7, the left side of the outer ring of the speed converter 8 is fixedly connected to the right end of the third pulley 9, and the third pulley 9 can be driven by the speed converter 8 The inner shaft 7 rotates, the outer shaft 6 does not rotate, and the inner shaft 7 can rotate alone. The third pulley 9 drives the fourth pulley 11 to rotate through the second belt 10. The fourth pulley 11 and the fifth pulley 13 are respectively fixed at both ends of the rotating rod 12. The fifth pulley 13 drives the sixth pulley 15 to rotate through the third belt 14. The sixth pulley 15 is connected to the second servo motor 16 through the reducer coupling. A distributor ring 22 is installed in the middle of the second pulley 5 and the third pulley 9. The distributor ring 22 is installed on the outside of the outer shaft 6. The first pulley 3, the second pulley 5, the third pulley 9, the fourth pulley 11, the fifth pulley 13 and the sixth pulley 15 are all toothed pulleys. The dual servo clutchless control system uses the same control structure for each drum, two servo motors, no clutch, no differential, and the chassis and spindle are disassembled. The larger first servo motor 2 is responsible for the large inertia rotation of the drum, and the second servo motor 16 is responsible for the circumference size. The inner shaft 7 and the outer shaft 6 form an inner and outer tooth structure. When the two servos move synchronously, the inner and outer teeth are relatively static, and the effect at this time is that the drum rotates. When the first servo motor 2 does not move and the second servo motor 16 moves, the outer teeth do not move, and the inner teeth rotate, resulting in the effect of circumference change. The control idea is to set up a virtual spindle, and hang two real axes below for rotation and expansion and contraction respectively. When the drum needs to rotate, the two axes are synchronized with the virtual axis, and the two axes are configured to be relatively static, and the expansion and contraction axis encoder is shielded to complete the rotation action. When the drum needs to expand or shrink, the expansion and contraction real axis is disengaged from the virtual axis and moves separately, so that the expansion and contraction axis encoder counts normally, completing precise expansion and contraction control.

[0022] The bottom of the second servo motor 16 is fixed to the top of the rear middle end of the frame 1, the bottom of the main box 101 is fixedly connected to the top of the left half of the frame 1, the first servo motor 2 is arranged inside the main box 101, and the right side of the rear end of the main box 101 is fixedly connected to the left end of the support plate 17. An auxiliary frame is provided at the bottom of the support plate 17. The number of auxiliary frames is plural and the arrangement is the same. The auxiliary frame includes a limit frame 20. The limit blocks on the inner sides of the left and right walls of the limit frame 20 are slidably connected to the side walls of the limit grooves at the left and right ends of the clamping plate frame 18. The front end of the adjusting bolt 21 passes through the limit frame 20 and is connected to the rear end of the clamping plate frame 18. A tensioning wheel 19 is installed at the front end of the clamping plate frame 18. Rotating the adjusting bolt 21 can adjust the front and rear position of the clamping plate frame 18. Moving the position of the clamping plate frame 18 forward can drive the tensioning wheel 19 to squeeze the first belt 4 or the second belt 10. This can adjust the tightness of the first belt 4 or the second belt 10 and increase the stability during transmission.

[0023] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A dual servo control device for the main shaft of a tire building machine, characterized in that: The machine comprises a frame (1), a first servo motor (2) is mounted on the top of the left end of the frame (1), the first servo motor (2) is connected to a first pulley (3) through a reducer coupling, the first pulley (3) drives a second pulley (5) to rotate through a first belt (4), the second pulley (5) is fixed to the outside of the middle end of an outer shaft (6), the left half of the outer shaft (6) is fixed to the inside of the left and right walls of a main chassis (101), an inner shaft (7) is arranged inside the outer shaft (6), a speed converter (8) is mounted on the right end of the inner shaft (7), the left side of the outer ring of the speed converter (8) is connected to the third pulley (5), and the left side of the outer ring of the speed converter (8) is connected to the third pulley (5). The right end of the pulley (9) is fixedly connected, the third pulley (9) drives the fourth pulley (11) to rotate through the second belt (10), the fourth pulley (11) and the fifth pulley (13) are respectively fixed on the two ends of the rotating rod (12), the fifth pulley (13) drives the sixth pulley (15) to rotate through the third belt (14), the sixth pulley (15) is connected to the second servo motor (16) through a reducer coupling, and a distributor ring (22) is installed in the middle position between the second pulley (5) and the third pulley (9), and the distributor ring (22) is installed on the outside of the outer shaft (6).

2. A tire building machine main shaft dual servo control device according to claim 1, characterized in that: The bottom of the second servo motor (16) is fixed to the top of the rear middle end of the frame (1).

3. A tire building machine main shaft dual servo control device according to claim 1, characterized in that: The bottom of the main box (101) is fixedly connected to the top of the left half of the frame (1), and the first servo motor (2) is arranged inside the main box (101).

4. A dual servo control device for main shaft of tire building machine according to claim 3, characterized in that: The right side of the rear end of the main chassis (101) is fixedly connected to the left end of the support plate (17).

5. A dual servo control device for main shaft of tire building machine according to claim 4, characterized in that: An auxiliary frame is provided at the bottom of the support plate (17), and the number of the auxiliary frames is plural and the arrangement is the same.

6. A dual-servo control device for main shaft of tire building machine according to claim 5, characterized in that: The auxiliary frame comprises a limit frame (20), the limit blocks on the inner sides of the left and right walls of the limit frame (20) are slidably connected to the side walls of the limit grooves at the left and right ends of the clamping frame (18), the front end of the adjustment bolt (21) passes through the limit frame (20) and is connected to the inside of the rear end of the clamping frame (18), and the front end of the clamping frame (18) is equipped with a tensioning wheel (19).

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