Circumferential variable-speed servo-driven input encoder motion mechanism

Abstract

The utility model relates to the technical field of jacquard machines, in particular to a circumferential variable-speed servo-driven input encoder movement mechanism, which is characterized in that an input eccentric wheel is arranged on an input main shaft, an output eccentric wheel is arranged on an output main shaft, the input eccentric wheel and the output eccentric wheel are in transmission, and an encoder is arranged on a mounting plate. The encoder is in transmission connection with the output main shaft, the input main shaft is in transmission connection with the output shaft of the weaving machine, and the encoder is connected with a servo motor controller of the jacquard machine. The output shaft of the weaving machine drives the input main shaft to rotate at a constant speed, and then through transmission of the input eccentric wheel and the output eccentric wheel, the circumferential variable-speed motion of the output main shaft is finally achieved, the servo motor is controlled to conduct the circumferential variable-speed motion, so that the circumferential variable-speed opening motion of the jacquard machine is achieved, and the opening time is prolonged. The opening return time is accelerated, and finally the purposes of improving the loom speed and improving the weaving efficiency are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to jacquard technology field especially a input encoder movement mechanism of circumferential variable speed servo drive. BACKGROUND

[0002] Jacquard is the device of controlling the opening movement law of loom, and the wide width rapier loom needs the jacquard to extend the opening opening time when weaving the opening, so as to facilitate the withdrawal of rapier head before the opening is closed. The ordinary jacquard is only uniform speed reciprocating opening and closing, which is easy to cause the opening of the loom on both sides to close before the rapier head withdraws and rub the rapier head, causing the rapier head to be scalded and the warp yarn to be damaged, resulting in broken warp. Therefore, the loom speed can only be reduced to alleviate the warp stop frequency, which greatly affects the weaving efficiency.

[0003] The jacquard needs to be designed into a conjugate cam mechanical structure, and the opening opening time is extended through the conjugate cam curve, so as to effectively improve the manufacturing efficiency. However, the mechanical cost of the conjugate cam mechanical structure is very high. Moreover, at present, the servo-driven jacquard begins to be popular, and on the basis of the servo motor driven jacquard, it is urgently needed to design a circumferential variable speed mechanism, which can control the servo motor to run, extend the opening opening time, and accelerate the opening return time, so as to achieve the purpose of improving the weaving efficiency. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a kind of input encoder movement mechanism of circumferential variable speed servo drive, the uniform speed circumferential motion of loom output spindle can be converted into circumferential variable speed encoder signal, to control the servo motor of jacquard to carry out circumferential variable speed movement.

[0005] The utility model discloses an input encoder movement mechanism of circumferential variable speed servo drive, including mounting bracket, be provided with mounting plate on mounting bracket, be provided with input main shaft and output main shaft side by side on mounting plate, be provided with input eccentric wheel on input main shaft, be provided with output eccentric wheel on output main shaft, input eccentric wheel is connected with output eccentric wheel transmission, be provided with encoder on mounting plate, the encoder is connected with output main shaft transmission, the input main shaft is connected with loom output shaft transmission, the encoder is connected with the servo motor controller of jacquard.

[0006] The input eccentric wheel and the output eccentric wheel are eccentric gears, eccentric pulleys or eccentric sprockets.

[0007] When the input eccentric wheel and the output eccentric wheel are eccentric gears, the two eccentric gears are engaged, and the modulus, the number of teeth and the eccentric distance of the two eccentric gears are the same.

[0008] When the input eccentric wheel and the output eccentric wheel are eccentric pulleys, the two eccentric pulleys are connected by synchronous belt transmission, and the modulus, the number of teeth and the eccentric distance of the two eccentric pulleys are the same.

[0009] The input eccentric wheel and the output eccentric wheel are both eccentric sprockets, and the two eccentric sprockets are connected through a chain transmission.

[0010] A driven pulley is arranged on the output spindle, the driven pulley is in synchronous motion with the input eccentric wheel, the central axis of the driven pulley coincides with the central axis of the input spindle, and the driven pulley is connected with a driving pulley on the output shaft of the loom through a belt transmission.

[0011] The input spindle is fixedly connected with the mounting plate, the input eccentric wheel and the driven pulley are rotatably connected with the input spindle through bearings, and the input eccentric wheel is fixedly connected with the driven pulley.

[0012] The input encoder motion mechanism of the circumferential variable-speed servo driving obtained by the utility model, through the output shaft of the loom driving the input spindle rotation at a constant speed, then through the transmission of the input eccentric wheel and the output eccentric wheel, finally realizing the circumferential variable-speed motion of the output spindle, the encoder transmits the motion frequency signal of the circumferential variable-speed motion to the servo motor controller of the jacquard machine, for controlling the servo motor to carry out the circumferential variable-speed motion, so as to realize the circumferential variable-speed opening motion of the jacquard machine, prolong the opening opening time, accelerate the opening return time, finally reach the purpose of improving the loom speed and improving the weaving efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model embodiment 1;

[0014] Figure 2 It is a structural front view of the utility model embodiment 1;

[0015] Figure 3 It is a structural top view of the utility model embodiment 1;

[0016] Figure 4 It is a structural schematic view of the utility model embodiment 2;

[0017] Figure 5 It is a structural schematic view between the input eccentric pulley and the output eccentric pulley of the utility model embodiment 3;

[0018] Figure 6 It is a structural schematic view between the input eccentric sprocket and the output eccentric sprocket of the utility model embodiment 4. DETAILED DESCRIPTION

[0019] In order to further illustrate the technical means and effects taken by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0020] Embodiment 1

[0021] As shown in Figures 1-3 The utility model discloses a circumference variable speed servo drive's input encoder movement mechanism, including mounting bracket 1, be provided with mounting plate 2 on mounting bracket 1, be provided with input main shaft 3 and output main shaft 5 side by side on mounting plate 2, be provided with input eccentric gear 4 on input main shaft 3, be provided with output eccentric gear 6 on output main shaft 5, input eccentric gear 4 and output eccentric gear 6 meshing transmission, the modulus, the tooth number, the eccentric distance of input eccentric gear 4 and output eccentric gear 6 are same, be provided with encoder 7 on mounting plate 2, encoder 7 is connected with output main shaft 5 transmission, input main shaft 3 is connected with weaving machine output shaft transmission, encoder 7 is connected with jacquard's servo motor controller.

[0022] Input main shaft 3 can be directly connected with weaving machine output shaft, so that input main shaft 3 and the output shaft of weaving machine are synchronous uniform speed rotation. In the meshing transmission process of input eccentric gear 4 on input main shaft 3 and output eccentric gear 6 on output main shaft 5, the rotation rate of input eccentric gear 4 is same, and the rotation of output eccentric gear 6 is variable speed, so that output main shaft 5 is variable speed movement, output main shaft 5 is connected with encoder 7 transmission, then encoder 7 will transmit the movement frequency of output main shaft 5 to jacquard's servo motor controller, and controls servo motor and output main shaft 5 synchronous movement, finally realizes the uniform speed movement of weaving machine, and jacquard realizes the circumference variable speed opening movement, can prolong the opening opening time, accelerates the opening return time, avoids the friction of sword head and warp of weaving machine, causes the broken warp situation, so that the basic guarantee is provided for jacquard and weaving machine high speed operation, and weaving efficiency is improved.

[0023] Embodiment 2

[0024] As shown in Figure 4 The utility model discloses a circumference variable speed servo drive's input encoder movement mechanism, including mounting bracket 1, be provided with mounting plate 2 on mounting bracket 1, be provided with input main shaft 3 and output main shaft 5 side by side on mounting plate 2, be provided with input eccentric gear 4 on input main shaft 3, be provided with output eccentric gear 6 on output main shaft 5, input eccentric gear 4 and output eccentric gear 6 meshing transmission, the modulus, the tooth number, the eccentric distance of input eccentric gear 4 and output eccentric gear 6 are same, be provided with encoder 7 on mounting plate 2, encoder 7 is connected with output main shaft 5 transmission, input main shaft 3 is connected with weaving machine output shaft transmission, encoder 7 is connected with jacquard's servo motor controller.

[0025] A pulley 8 is provided on the output spindle 5. The pulley 8 moves synchronously with the input eccentric gear 4. The central axis of the pulley 8 coincides with the central axis of the input spindle 3. The pulley 8 is connected to the pulley 8 on the output shaft of the loom via belt drive.

[0026] The output shaft of the loom and the input main shaft 3 are connected by a pulley 8 and a belt. While ensuring synchronous movement between the output shaft and the input main shaft 3, it is more convenient to set the position of the mounting frame 1. The position can be designed according to actual needs, making the equipment design more convenient and adaptable.

[0027] The input spindle 3 is fixedly connected to the mounting plate 2. The input eccentric gear 4 and the pulley 8 are rotatably connected to the input spindle 3 through bearings. The input eccentric gear 4 and the pulley 8 are fixedly connected.

[0028] An input eccentric gear 4 and a pulley 8 are both installed on the input spindle 3 via gears. The pulley 8 is fixedly connected to the input eccentric gear 4, which makes the operation of both more stable and the rotation process smoother.

[0029] Example 3:

[0030] like Figure 5 As shown, this utility model discloses an input encoder motion mechanism for a circumferential speed-changing servo drive, including a mounting frame 1, a mounting plate 2 on the mounting frame 1, an input spindle 3 and an output spindle 5 arranged side by side on the mounting plate 2, an input eccentric pulley 9 on the input spindle 3, and an output eccentric pulley 10 on the output spindle 5. The input eccentric pulley 9 and the output eccentric pulley 10 are connected by a synchronous belt 11. The input eccentric pulley 9 and the output eccentric pulley 10 have the same module, number of teeth, and eccentricity. An encoder 7 is mounted on the mounting plate 2, which is connected to the output spindle 5. The input spindle 3 is connected to the output shaft of the loom, and the encoder 7 is connected to the servo motor controller of the jacquard machine.

[0031] The input main shaft 3 can be directly connected with the loom output shaft, so that the input main shaft 3 rotates at a uniform speed synchronously with the loom output shaft. During the transmission of the input eccentric pulley 9 on the input main shaft 3 and the output eccentric pulley 10 on the output main shaft 5 through the synchronous belt 11, the rotation speed of the input eccentric pulley 9 is the same, and the rotation of the output eccentric pulley 10 is variable, so that the output main shaft 5 moves at a variable speed. The output main shaft 5 is in transmission connection with the encoder 7, so that the encoder 7 transmits the movement frequency of the output main shaft 5 to the servo motor controller of the jacquard machine, controls the synchronous movement of the servo motor and the output main shaft 5, and finally realizes the circular variable speed opening movement of the jacquard machine under the condition that the loom moves at a uniform speed. The opening opening time can be prolonged, the opening return time can be accelerated, the sword head of the loom can be prevented from rubbing against the warp yarn to cause the warp yarn to be broken, and therefore, the basis guarantee for the high-speed operation of the jacquard machine and the loom is provided, and the weaving efficiency is improved.

[0032] Embodiment 4:

[0033] As Figure 6 The utility model discloses a circumference variable speed servo drive's input encoder movement mechanism, including the mounting bracket 1, be provided with the mounting plate 2 on the mounting bracket 1, be provided with input main shaft 3 and output main shaft 5 side by side on the mounting plate 2, be provided with input eccentric sprocket 12 on input main shaft 3, be provided with output eccentric sprocket 13 on output main shaft 5, input eccentric sprocket 12 with output eccentric sprocket 13 are driven through chain 14, the diameter, pitch, eccentricity of input eccentric sprocket 12 with output eccentric sprocket 13 are same, be provided with encoder 7 on the mounting plate 2, encoder 7 with output main shaft 5 transmission connection, input main shaft 3 with loom output shaft transmission connection, encoder 7 with jacquard's servo motor controller connects.

[0034] The input main shaft 3 can be directly connected with the loom output shaft, so that the input main shaft 3 rotates at a uniform speed synchronously with the loom output shaft. During the transmission of the input eccentric pulley 9 on the input main shaft 3 and the output eccentric pulley 10 on the output main shaft 5 through the synchronous belt 11, the rotation speed of the input eccentric pulley 9 is the same, and the rotation of the output eccentric pulley 10 is variable, so that the output main shaft 5 moves at a variable speed. The output main shaft 5 is in transmission connection with the encoder 7, so that the encoder 7 transmits the movement frequency of the output main shaft 5 to the servo motor controller of the jacquard machine, controls the synchronous movement of the servo motor and the output main shaft 5, and finally realizes the circular variable speed opening movement of the jacquard machine under the condition that the loom moves at a uniform speed. The opening opening time can be prolonged, the opening return time can be accelerated, the sword head of the loom can be prevented from rubbing against the warp yarn to cause the warp yarn to be broken, and therefore, the basis guarantee for the high-speed operation of the jacquard machine and the loom is provided, and the weaving efficiency is improved.

[0035] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0036] In the description of the present application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0038] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the technical solution range of the present application, and any simplification, modification, equivalent change and modification of the above embodiment according to the technical essence of the present application are still within the scope of the technical solution of the present application.

Claims

1. A circular speed-changing servo-driven input encoder motion mechanism, characterized in that: The system includes a mounting frame, on which a mounting plate is mounted. An input spindle and an output spindle are arranged side by side on the mounting plate. An input eccentric wheel is mounted on the input spindle, and an output eccentric wheel is mounted on the output spindle. The input eccentric wheel and the output eccentric wheel are connected by a drive. An encoder is mounted on the mounting plate and is connected by a drive to the output spindle. The input spindle is connected by a drive to the output shaft of the loom, and the encoder is connected to the servo motor controller of the jacquard machine.

2. The input encoder motion mechanism for a circular speed-changing servo drive according to claim 1, characterized in that: Both the input eccentric wheel and the output eccentric wheel are eccentric gears, eccentric pulleys, or eccentric sprockets. When both the input eccentric wheel and the output eccentric wheel are eccentric gears, the two eccentric gears mesh with each other, and the module, number of teeth, and eccentricity of the two eccentric gears are the same. When both the input eccentric pulley and the output eccentric pulley are eccentric belt pulleys, the two eccentric belt pulleys are connected by a synchronous belt drive, and the two eccentric belt pulleys have the same module, number of teeth, and eccentricity. When both the input eccentric wheel and the output eccentric wheel are eccentric sprockets, the two eccentric sprockets are connected by chain drive, and the two eccentric sprockets have the same diameter, pitch, and eccentricity.

3. The input encoder motion mechanism for a circular speed-changing servo drive according to claim 1, characterized in that: A driven pulley is provided on the output spindle. The driven pulley moves synchronously with the input eccentric wheel. The central axis of the driven pulley coincides with the central axis of the input spindle. The driven pulley is connected to the driving pulley on the output shaft of the loom via belt drive.

4. The input encoder motion mechanism for circular speed-changing servo drive according to claim 3, characterized in that: The input spindle is fixedly connected to the mounting plate, and the input eccentric wheel and the driven pulley are rotatably connected to the input spindle through bearings. The input eccentric wheel and the driven pulley are fixedly connected.

Images