Double-servo reciprocating driving mechanism of electronic jacquard machine

Abstract

The utility model relates to the technical field of reciprocating mechanisms of jacquard machines, in particular to a double-servo reciprocating driving mechanism of an electronic jacquard machine, which is characterized in that a servo motor drives a lifting frame to drive a sliding plate to reciprocate up and down through meshing of a first gear and a first rack; the lifting frame can drive a rotating shaft of a rotary encoder to rotate through meshing of a second rack and a second gear in the up-down moving process, a computer control system can be helped to accurately judge the position of the lifting frame, and two servo motors independently control corresponding sliding plates so that the two sliding plates can have the high-precision independent movement capacity; the effect of improving the flexibility and adaptability of the jacquard machine during complex pattern weaving is achieved, when the two ends of the warp are clamped in the lifting process, the warp can exert pulling force on the lifting needle, at the moment, the pulling force of the warp on the lifting needle is larger than the elastic force of the spring, the lifting needle can overcome the elastic force of the spring to slide downwards or upwards, and therefore the jacquard machine is more flexible. The effect of protecting the warps from being snapped is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of jacquard machine reciprocating mechanisms, in particular to a double-servo reciprocating drive mechanism for an electronic jacquard machine. Background Art

[0002] The working principle of the jacquard machine is to selectively raise the warp threads according to pre-designed patterns through mechanical or electronic control, thereby forming different interwoven structures and weaving various patterns.

[0003] Existing Chinese patent: Electronic jacquard transmission mechanism, patent number: CN218203281U, including a mounting panel, the outer surface of the mounting panel is slidably connected to a first sliding plate, the top of the first sliding plate is fixedly connected to a first tooth plate, through the cooperation between the first tooth plate, the second tooth plate and the first driving gear and the third tooth plate, the fourth tooth plate and the second driving gear, when the motor drives the active gear to rotate, the first sliding plate and the second sliding plate can be made to move back and forth up and down. At the same time, the mechanism has a simple structure, good stability during use, and low failure rate. By installing a rotating wheel, when the first tooth plate, the second tooth plate, the third tooth plate and the fourth tooth plate slide up and down, the surface of the rotating wheel can be rolled and connected to the surface of the limit plate, reducing the friction of the slide when sliding inside the slide groove, avoiding damage to the slide or the inner wall of the slide groove as much as possible, and extending the service life.

[0004] However, during the implementation of the above technical solution, it was found that there were at least the following technical problems: the above-mentioned transmission mechanism, in which two sliding plates are driven simultaneously by one motor, is interlocked with each other and cannot be controlled individually. Their motion states cannot be adjusted separately according to different production needs, which limits the flexibility and adaptability of the jacquard machine when weaving complex patterns. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the utility model provides an electronic jacquard machine dual-servo reciprocating drive mechanism to solve the technical problem that the above-mentioned transmission mechanism is that one motor drives two sliding plates at the same time, the two sliding plates are interlocked, cannot be controlled individually, and their motion states cannot be adjusted separately according to different production needs, which limits the flexibility and adaptability of the jacquard machine when weaving complex patterns.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A dual-servo reciprocating drive mechanism for an electronic jacquard machine includes a mounting panel, on which two lifting mechanisms are staggeredly installed. The lifting mechanisms include a lifting frame, a first rack, a second rack, a servo motor, a rotary encoder, a first gear, a second gear, a bearing and a card wheel. The servo motor is fixedly installed on the side end of the mounting panel, the rotary encoder is fixedly installed on the side end of the mounting panel, the first gear is fixedly installed on the rotating shaft of the servo motor, the second gear is fixedly installed on the rotating shaft of the rotary encoder, the inner side walls of multiple bearings are fixedly installed on the side end of the mounting panel, the inner side wall of the card wheel is fixedly installed on the outer side wall of the bearing, the lifting frame is slidably installed between the card wheels, the first rack is fixedly installed on the inner side of the lifting frame, and the second rack is fixedly installed on the inner side of the lifting frame; the first rack is meshed with the first gear, and the second rack is meshed with the second gear.

[0010] Preferably, a sliding plate is fixedly mounted on the bottom end of the lifting frame, and a plurality of lifting needles are slidably mounted on the sliding plate.

[0011] Preferably, a spring is symmetrically fixedly mounted on the top of the lifting needle.

[0012] (3) Beneficial effects

[0013] 1. The servo motor itself has very precise position, speed and torque control, can quickly follow the changes in the control signal, and achieve fast start and stop and speed regulation. The servo motor drives the lifting frame to drive the sliding plate to move up and down through the engagement of the first gear and the first rack. During the up and down movement of the lifting frame, the engagement of the second rack and the second gear drives the rotating shaft of the rotary encoder to rotate, which can help the computer control system to accurately judge the position of the lifting frame. The two servo motors independently control the corresponding sliding plates, giving the two sliding plates high-precision independent movement capabilities, thereby improving the flexibility and adaptability of the jacquard machine when weaving complex patterns.

[0014] 2. When the two ends of the warp are stuck during the lifting process, the warp will exert a pulling force on the lifting needle. At this time, the pulling force of the warp on the lifting needle will be greater than the elastic force of the spring, so that the lifting needle can overcome the elastic force of the spring and slide down or up, allowing the warp to remain in its original position, avoiding the warp continuing to move up and down with the sliding plate and being pulled apart, thereby achieving the effect of protecting the warp from being pulled apart. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0016] Figure 1 This is a structural diagram of the lifting frame of the utility model;

[0017] Figure 2 This is a structural diagram of the installation panel of the present utility model;

[0018] Figure 3 This is a structural diagram of the rack of the present utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the sliding plate of the present utility model.

[0020] Legend: 1. Mounting panel; 2. Lifting frame; 3. First rack; 4. Second rack; 5. Servo motor; 6. Rotary encoder; 7. First gear; 8. Second gear; 9. Bearing; 11. Cardan; 12. Sliding plate; 13. Lifting needle; 14. Spring. DETAILED DESCRIPTION

[0021] The embodiment of the present application effectively solves the above-mentioned transmission mechanism by providing a dual-servo reciprocating drive mechanism for an electronic jacquard machine. One motor drives two sliding plates at the same time. The two sliding plates are interlocked and cannot be controlled individually. Their motion states cannot be adjusted according to different production needs, which limits the flexibility and adaptability of the jacquard machine when weaving complex patterns. The servo motor itself has very precise position, speed and torque control, and can quickly follow changes in control signals to achieve fast start and stop and speed regulation. The servo motor drives the lifting frame to drive the sliding plate to reciprocate up and down through the engagement of the first gear and the first rack. During the up and down movement, the lifting frame will pass through the second gear. The engagement of the strip and the second gear drives the rotating shaft of the rotary encoder to rotate, which can help the computer control system to accurately judge the position of the lifting frame. The two servo motors independently control the corresponding sliding plates, so that the two sliding plates have high-precision independent movement capabilities, thereby improving the flexibility and adaptability of the jacquard machine when weaving complex patterns. When the two ends of the warp are stuck during the lifting process, the warp will exert a pulling force on the lifting needle. At this time, the pulling force of the warp on the lifting needle will be greater than the elastic force of the spring, so that the lifting needle can overcome the elastic force of the spring and slide downward or upward, allowing the warp to remain in its original position, avoiding the warp continuing to follow the sliding plate up and down and being pulled apart, thereby protecting the warp from being pulled apart.

[0022] Example

[0023] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the technical solution in the embodiment of the present application effectively solves the technical problem that the transmission mechanism mentioned above is driven by one motor at the same time, the two sliding plates are interlocked, and cannot be controlled separately. It is impossible to adjust their motion states according to different production requirements, which limits the flexibility and adaptability of the jacquard machine when weaving complex patterns. The overall idea is as follows:

[0024] In response to the problems existing in the prior art, the utility model provides a dual-servo reciprocating drive mechanism for an electronic jacquard machine, comprising a mounting panel 1, on which two lifting mechanisms are staggeredly installed, the lifting mechanisms comprising a lifting frame 2, a first rack 3, a second rack 4, a servo motor 5, a rotary encoder 6, a first gear 7, a second gear 8, a bearing 9 and a card wheel 11, the servo motor 5 is fixedly mounted on the side end of the mounting panel 1, and the rotary encoder 6 is fixedly mounted on the side end of the mounting panel 1.

[0025] The first gear 7 is fixedly mounted on the rotating shaft of the servo motor 5, the second gear 8 is fixedly mounted on the rotating shaft of the rotary encoder 6, the inner side walls of multiple bearings 9 are fixedly mounted on the side ends of the mounting panel 1, the inner side wall of the card wheel 11 is fixedly mounted on the outer side wall of the bearing 9, and the lifting frame 2 is slidably mounted between the card wheels 11.

[0026] The first rack 3 is fixedly mounted on the inner side of the lifting frame 2, and the second rack 4 is fixedly mounted on the inner side of the lifting frame 2; the first rack 3 is engaged with the first gear 7, and the second rack 4 is engaged with the second gear 8. A sliding plate 12 is fixedly mounted on the bottom end of the lifting frame 2, and a plurality of lifting needles 13 are slidably mounted on the sliding plate 12, and springs 14 are symmetrically fixedly mounted on the top ends of the lifting needles 13.

[0027] Working principle:

[0028] The first step is to connect the two servo motors 5 and the two rotary encoders 6 to the computer control system through wires during installation. When in use, the two servo motors 5 will drive the two first gears 7 to rotate forward or reverse according to the program settings. Since the first gear 7 is engaged with the first rack 3, the rotation of the first gear 7 will drive the first rack 3 to slide. The first rack 3 is fixedly mounted on the lifting frame 2, so the first rack 3 will push the lifting frame 2 to slide up and down, thereby dragging the sliding plate 12 and the lifting needle 13 to slide up and down to weave the silk thread. In the process of the lifting frame 2 sliding up and down, the second rack 4 inside it will slide up and down synchronously. Since the second rack 4 is engaged with the second gear 8, the up and down sliding of the second rack 4 will drive the second gear 8 to rotate. The rotating second gear 8 will drive the rotating shaft of the rotary encoder 6 to rotate. The rotary encoder 6 will send the collected data to the computer control system so that the computer control system can better judge the movement state of the lifting frame 2 and then send accurate control signals to the corresponding servo motors 5.

[0029] In the second step, the sliding plate 12 pulls multiple lifting needles 13 to slide up and down, so that the lifting needles 13 can drive the warp to lift. Under normal conditions, the warp has the ability to move and can move up and down with the lifting needles 13. During this process, the elastic force of the spring 14 is greater than the pulling force of the warp on the lifting needles 13, so the lifting needles 13 can smoothly pull up the warp. When the two ends of the warp are stuck during the lifting process, the warp will exert a pulling force on the lifting needles 13. At this time, the pulling force of the warp on the lifting needles 13 will be greater than the elastic force of the spring 14, so that the lifting needles 13 can overcome the elastic force of the spring 14 and slide downward or upward, allowing the warp to remain in its original position and prevent the warp from continuing to move up and down with the sliding plate 12 and being pulled apart.

[0030] Finally, it should be noted that the above embodiments are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to enumerate all embodiments here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A dual-servo reciprocating drive mechanism for an electronic jacquard machine, comprising a mounting panel (1), characterized in that: Two lifting mechanisms are staggeredly installed on the mounting panel (1), and the lifting mechanisms include a lifting frame (2), a first rack (3), a second rack (4), a servo motor (5), a rotary encoder (6), a first gear (7), a second gear (8), a bearing (9) and a card wheel (11); The servo motor (5) is fixedly mounted on a side end of the mounting panel (1), the rotary encoder (6) is fixedly mounted on a side end of the mounting panel (1), the first gear (7) is fixedly mounted on a rotating shaft of the servo motor (5), and the second gear (8) is fixedly mounted on a rotating shaft of the rotary encoder (6); The inner side walls of the plurality of bearings (9) are fixedly mounted on the side ends of the mounting panel (1), the inner side walls of the clamping wheels (11) are fixedly mounted on the outer side walls of the bearings (9), and the lifting frame (2) is slidably mounted between the clamping wheels (11); The first rack (3) is fixedly mounted on the inner side of the lifting frame (2), and the second rack (4) is fixedly mounted on the inner side of the lifting frame (2); The first rack (3) is meshed with the first gear (7), and the second rack (4) is meshed with the second gear (8).

2. The electronic jacquard machine dual servo reciprocating drive mechanism according to claim 1, characterized in that: A sliding plate (12) is fixedly mounted on the bottom end of the lifting frame (2), and a plurality of lifting needles (13) are slidably mounted on the sliding plate (12).

3. The electronic jacquard machine dual servo reciprocating drive mechanism according to claim 2, characterized in that: A spring (14) is symmetrically fixedly mounted on the top end of the lifting needle (13).

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