Unreeling deviation rectifying device of prepreg splitting machine

Abstract

The invention discloses an unwinding deviation rectifying device of a prepreg splitting machine, and relates to the technical field of unwinding deviation rectifying devices. Comprising a vertical plate vertically arranged on a main body frame and fixedly connected with the main body frame; a deviation rectifying frame plate is arranged on one side of the vertical plate, a deviation rectifying moving mechanism is arranged between the deviation rectifying frame plate and the vertical plate and connected with a servo cylinder and a servo motor, an unwinding shaft and an unwinding motor are arranged on the deviation rectifying frame plate, a first traction roller is arranged on the deviation rectifying frame plate, one end of the first traction roller is rotationally connected to the deviation rectifying frame plate, and the other end of the first traction roller is rotationally connected to the deviation rectifying frame plate. A mounting seat is arranged at the other end of the first traction roller, the center of the first traction roller in the length direction is aligned with the center of the unwinding shaft in the length direction, a second traction roller is arranged above the first traction roller and rotationally connected with the vertical plate and the mounting seat, and a third traction roller is arranged above the unwinding shaft and rotationally connected with the vertical plate and the mounting seat. The third traction roller is rotationally connected with the vertical plate and the mounting seat, and the third traction roller is a driving roller.

Description

Technical Field

[0001] The invention relates to the technical field of unwinding deviation correction devices, and in particular to an unwinding deviation correction device for a prepreg slitting machine. Background Art

[0002] The unwinding and guiding device of the prepreg slitting machine adopts a servo motor drive system. The unwinding tension and speed control of the prepreg tape is an automatic closed-loop system. The control system of the device is equipped with a sensor to measure the diameter of the prepreg masterbatch roll, and the sensor information is integrated into the control loop algorithm. With this function, the system can ensure constant and precise unwinding conditions.

[0003] The existing unwinding and correcting device of the slitting machine drives the correction through a stepping motor in combination with a push rod and a slide rail slider, and balances the tension of the prepreg through a magnetic powder brake in combination with the main traction.

[0004] Insufficient dynamic response capability: The magnetic powder brake itself has a large electromagnetic inertia, which makes it difficult to meet the requirements of its dynamic performance during high-speed unwinding, especially in the high-speed strip and wire production process. This may lead to inaccurate tension control and affect product quality. Large-scale changes in system parameters: During the unwinding process, due to the large-scale changes in the coil diameter, this will cause a large-scale change in the control system object parameters, which will in turn affect the control performance. The magnetic powder in the magnetic powder brake has a service life. As the use time accumulates, it will slowly wear and oxidize and fail. If used improperly, such as too fast speed or too large torque, the heat will exceed the rated heat, thereby shortening the service life of the magnetic powder. Temperature control problem: When the magnetic powder brake is in continuous operation, if the surface temperature exceeds the allowable value (usually below 90 degrees), the durability will be greatly reduced, affecting the performance and life of the magnetic powder. Response hysteresis: There is a certain hysteresis in the loading response of the magnetic powder brake, and the loading response time is long, which may affect the efficiency and accuracy of unwinding. Accuracy limitation: The accuracy of the stepper motor is limited by the step angle, which may cause the correction system to be inaccurate when making fine adjustments, especially in applications that require high-precision positioning. Dynamic response issues: The dynamic response speed of the stepper motor may not be fast enough to cope with fast or sudden correction needs, which may cause the system to be unstable and responsive at high speeds. Load capacity limitation: The load capacity of the stepper motor and the actuator is limited. For heavy load or high-pressure correction applications, the system may not be able to provide enough force to effectively correct the correction. Summary of the invention

[0005] To this end, an embodiment of the present invention provides a prepreg slitting machine unwinding correction device to solve the problem of low correction accuracy of the existing slitting machine correction device in the above technology.

[0006] In order to achieve the above purpose, the embodiment of the present invention provides the following technical solutions:

[0007] A prepreg slitting machine unwinding and deviation correction device comprises a main frame, on which a vertical plate is vertically arranged and fixedly connected;

[0008] A deflection correction frame plate is arranged on one side of the vertical plate, the deflection correction frame plate is arranged at a distance from the vertical plate, a deflection correction moving mechanism is arranged between the deflection correction frame plate and the vertical plate, the deflection correction moving mechanism is connected to a servo cylinder, and the servo cylinder is driven by a servo motor to drive the deflection correction moving mechanism to drive the deflection correction frame plate to move closer to or away from the vertical plate;

[0009] A reeling shaft is arranged on the side of the deflection correction frame plate away from the vertical plate, the reeling shaft is rotatably connected to the deflection correction frame plate, a reeling motor is arranged on the side of the deflection correction frame plate close to the vertical plate, the reeling motor is fixedly connected to the deflection correction frame plate, and a through hole adapted to the reeling motor is opened on the vertical plate;

[0010] A first traction roller is arranged on the deflection correction frame plate, one end of the first traction roller is rotatably connected to the deflection correction frame plate, a mounting seat is arranged on the other end of the first traction roller, the end of the first traction roller passes through the mounting seat, and the center of the first traction roller in the length direction is aligned with the center of the unwinding shaft in the length direction, a second traction roller is arranged above the first traction roller, one end of the second traction roller is rotatably connected to the vertical plate, and the other end of the second traction roller is rotatably connected to the mounting seat, a third traction roller is arranged above the unwinding shaft, one end of the third traction roller is rotatably connected to the vertical plate, and the other end of the third traction roller is rotatably connected to the mounting seat, and the third traction roller is an active roller.

[0011] Optionally, the unwinding shaft is connected to the output end of the prepreg winding device and is used for actively unwinding the prepreg, and the unwinding shaft is an air inflation shaft.

[0012] Optionally, a deviation correction sensor is provided on one side of the moving direction of the first traction roller traction prepreg, for detecting the deviation of the prepreg.

[0013] Optionally, the deviation correction sensor is a sensor that does not contact the semi-enclosed prepreg.

[0014] Optionally, the third traction roller passes through the vertical plate, and a traction motor is provided on one side of the third traction roller passing through the vertical plate to drive the third traction roller to rotate.

[0015] Optionally, the deviation-correcting moving mechanism comprises a plurality of moving shafts, the plurality of moving shafts are fixedly connected between the deviation-correcting frame plate and the vertical plate, the moving shafts penetrate the vertical plate, and the moving shafts are slidably connected to the vertical plate;

[0016] One of the moving shafts is connected to the output end of the servo cylinder.

[0017] Optionally, a support rod is provided between the mounting seat and the vertical plate, and two ends of the support rod are fixedly connected to the vertical plate and the mounting seat respectively.

[0018] Optionally, the deflection correction sensor is electrically connected to a servo motor, and the servo motor controls the moving axis and the deflection correction frame plate to perform deflection correction actions according to a sensing signal of the deflection correction sensor.

[0019] The present invention has at least the following beneficial effects:

[0020] The present invention arranges a servo motor and a high-precision servo cylinder to cooperate in driving the deviation correction moving mechanism and the deviation correction frame plate. The unwinding shaft is installed on the deviation correction frame plate. It moves with the deviation correction moving mechanism. The control accuracy is high, the regulation is stepless, and the response is fast. It can cope with the position changes in the unwinding process. According to the deviation correction requirements, the position of the prepreg is axially adjusted so that the prepreg sheet can quickly return to the original track when it deviates from the normal winding track. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly explain the prior art and the present invention, the following briefly introduces the drawings required for describing the prior art and the embodiments of the present invention. Obviously, the drawings described below are only exemplary, and for those of ordinary skill in the art, other drawings can be derived from the provided drawings without creative work.

[0022] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportion or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0023] Figure 1 It is a schematic structural diagram of a first-viewing angle of an unwinding and correcting device according to an embodiment of the present invention;

[0024] Figure 2 It is a schematic structural diagram of an unwinding and correcting device from a second viewing angle according to an embodiment of the present invention;

[0025] Figure 3 It is a schematic structural diagram of the unwinding and correcting device from the third viewing angle according to an embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 1. Main frame; 2. Vertical plate; 3. Correction frame plate; 4. Correction moving mechanism; 5. Unwinding shaft; 6. Unwinding motor; 7. First traction roller; 8. Second traction roller; 9. Third traction roller; 10. Mounting seat; 11. Correction sensor; 12. Traction motor; 13. Support rod. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] In the description of the present invention, unless otherwise specified, "plurality" means two or more. The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are intended to distinguish the objects referred to. For schemes with a sequential flow, this terminology does not have to be understood as describing a specific order or sequence. For schemes with device structures, this terminology does not distinguish between importance, positional relationships, etc.

[0030] In addition, the terms "comprises", "has" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that have been explicitly listed, but may also include other steps or units that are not explicitly listed but are inherent to these processes, methods, products or apparatuses, or steps or units that are added based on further optimization schemes conceived by the present invention.

[0031] like Figure 1-Figure 3 As shown, a prepreg slitting machine unwinding and deviation correction device disclosed in the present invention comprises a main frame 1, and a vertical plate 2 is vertically arranged and fixedly connected to the main frame 1;

[0032] A deflection correction frame plate 3 is provided on one side of the vertical plate 2, and the deflection correction frame plate 3 is spaced apart from the vertical plate 2. A deflection correction moving mechanism 4 is provided between the deflection correction frame plate 3 and the vertical plate 2, and the deflection correction moving mechanism 4 is connected to a servo cylinder, which is driven by a servo motor to drive the deflection correction moving mechanism 4 to drive the deflection correction frame plate 3 to approach or move away from the vertical plate 2;

[0033] A reeling shaft 5 is provided on the side of the deflection correction frame plate 3 away from the vertical plate 2, and the reeling shaft 5 is rotatably connected to the deflection correction frame plate 3. A reeling motor 6 is provided on the side of the deflection correction frame plate 3 close to the vertical plate 2, and the reeling motor 6 is fixedly connected to the deflection correction frame plate 3. A through hole adapted to the reeling motor 6 is opened on the vertical plate 2;

[0034] A first traction roller 7 is arranged on the deflection correction frame plate 3, one end of the first traction roller 7 is rotatably connected to the deflection correction frame plate 3, a mounting seat 10 is arranged on the other end of the first traction roller 7, the end of the first traction roller 7 passes through the mounting seat 10, and the center of the first traction roller 7 in the length direction is aligned with the center of the unwinding shaft 5 in the length direction, a second traction roller 8 is arranged above the first traction roller 7, one end of the second traction roller 8 is rotatably connected to the vertical plate 2, and the other end of the second traction roller 8 is rotatably connected to the mounting seat 10, a third traction roller 9 is arranged above the unwinding shaft 5, one end of the third traction roller 9 is rotatably connected to the vertical plate 2, and the other end of the third traction roller 9 is rotatably connected to the mounting seat 10, and the third traction roller 9 is an active roller.

[0035] The unwinding shaft 5 is connected to the output end of the prepreg winding device and is used for actively unwinding the prepreg. The unwinding shaft 5 is an air expansion shaft.

[0036] The above-mentioned unwinding and correcting device is mainly supported by a frame and a vertical plate 2. The unwinding device is integrally installed on a movable correction reference plate. The correcting device adopts a servo motor and a high-precision servo cylinder to cooperate with a three-point circular shaft to slide and move, thereby improving the load-bearing and correction accuracy.

[0037] Main frame 1: Provides support and protection for the entire system.

[0038] Unwinding device: connected to the output end of the release paper winding device, used for actively unwinding prepreg, using a standard 3-inch air expansion shaft, and can quickly replace the material roll.

[0039] Servo motor controlled deviation correction device: As a deviation correction mechanism, it has high control accuracy, stepless regulation, and fast response, and can cope with position changes during the unwinding process. The moving shaft is connected to the servo motor, and according to the instructions of the deviation correction sensor 11, the axial position of the prepreg is adjusted so that the prepreg sheet can quickly return to the original track when it deviates from the normal winding track.

[0040] Moving axis: connected to the servo motor, axially adjusts the position of the prepreg according to the instructions uploaded to the control cabinet by the deviation correction sensor 11.

[0041] Deviation correction sensor 11: It is arranged behind the steering wheel, surrounds the prepreg without contact, and is used to detect the deviation of the prepreg. A deviation correction sensor 11 is arranged on one side of the moving direction of the first traction roller 7 to pull the prepreg, and is used to detect the deviation of the prepreg.

[0042] The deviation correction sensor 11 is a sensor that does not contact the semi-surrounding prepreg.

[0043] The third traction roller 9 passes through the vertical plate 2 . A traction motor 12 is provided on one side of the third traction roller 9 passing through the vertical plate 2 to drive the third traction roller 9 to rotate.

[0044] The deviation correction moving mechanism 4 includes a plurality of moving shafts, which are fixedly connected between the deviation correction frame plate 3 and the vertical plate 2, and the moving shafts penetrate the vertical plate 2, and the moving shafts are slidably connected to the vertical plate 2;

[0045] One of the moving axes is connected to the output end of the servo cylinder.

[0046] A support rod 13 is provided between the mounting seat 10 and the vertical plate 2 , and two ends of the support rod 13 are fixedly connected to the vertical plate 2 and the mounting seat 10 respectively.

[0047] The deflection correction sensor 11 is electrically connected to the servo motor, and the servo motor controls the moving shaft and the deflection correction frame plate 3 to perform deflection correction according to the sensing signal of the deflection correction sensor 11 .

[0048] The feeding part of the present invention includes a main frame 1, a vertical plate 2, a correction frame plate 3, a correction moving mechanism 4, a servo cylinder, an unwinding shaft 5, an unwinding motor 6, a first traction roller 7, a mounting seat 10, a second traction roller 8, and a third traction roller 9.

[0049] The vertical plate 2 and the deviation-correcting frame plate 3 form a placement rack.

[0050] First, the prepreg starts from the unwinding shaft 5, passes through the first traction roller 7 and the second traction roller 8 from the bottom of the placement frame, and is connected to the third traction roller 9. The third traction roller 9 serves as an active traction roller to drive the prepreg to unwind.

[0051] During operation, the prepreg may deviate during movement due to various reasons. At this time, the deviation signal is detected by the correction sensor 11 and the signal is fed back to the servo motor; at this time, the servo motor drives the movable axis that can move left and right to drive the correction frame plate 3 to move closer to or away from the vertical plate 2; the deviation problem of the prepreg is effectively corrected.

[0052] The effects of the present invention are:

[0053] The unwinding correction device can monitor and adjust the offset of the prepreg in real time to ensure that the prepreg always maintains the correct position during the slitting process, thereby improving the slitting accuracy.

[0054] The deviation correction device can quickly respond to and adjust the position changes of the prepreg, reduce production interruptions caused by position deviation, and improve production efficiency.

[0055] Through precise deviation correction and tension control, material waste caused by position deviation and unstable tension can be reduced and material utilization rate can be improved.

[0056] Ensure stable tension: The tension detection sensor and the main drive unwinding device cooperate with the roll diameter measurement and the algorithm designed inside the PLC to effectively control the stability of the tension.

[0057] Improve the degree of automation. The above specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0058] The technical features of the above embodiments may be arbitrarily combined (as long as there is no contradiction in the combination of these technical features). To make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.

[0059] The present invention is described in more detail through general description and specific embodiments. It should be noted that, without departing from the concept of the present invention, it is obvious that several variations and improvements can be made to these specific embodiments, which all belong to the protection scope of this application. Therefore, the protection scope of the patent of this application shall be subject to the attached claims.

Claims

1. A prepreg slitting machine unwinding and correcting device, characterized in that: It comprises a main frame, on which a vertical plate is vertically arranged and fixedly connected; A deflection correction frame plate is arranged on one side of the vertical plate, the deflection correction frame plate is arranged at a distance from the vertical plate, a deflection correction moving mechanism is arranged between the deflection correction frame plate and the vertical plate, the deflection correction moving mechanism is connected to a servo cylinder, and the servo cylinder is driven by a servo motor to drive the deflection correction moving mechanism to drive the deflection correction frame plate to move closer to or away from the vertical plate; A reeling shaft is arranged on the side of the deflection correction frame plate away from the vertical plate, the reeling shaft is rotatably connected to the deflection correction frame plate, a reeling motor is arranged on the side of the deflection correction frame plate close to the vertical plate, the reeling motor is fixedly connected to the deflection correction frame plate, and a through hole adapted to the reeling motor is opened on the vertical plate; A first traction roller is arranged on the deflection correction frame plate, one end of the first traction roller is rotatably connected to the deflection correction frame plate, a mounting seat is arranged on the other end of the first traction roller, the end of the first traction roller passes through the mounting seat, and the center of the first traction roller in the length direction is aligned with the center of the unwinding shaft in the length direction, a second traction roller is arranged above the first traction roller, one end of the second traction roller is rotatably connected to the vertical plate, and the other end of the second traction roller is rotatably connected to the mounting seat, a third traction roller is arranged above the unwinding shaft, one end of the third traction roller is rotatably connected to the vertical plate, and the other end of the third traction roller is rotatably connected to the mounting seat, and the third traction roller is an active roller.

2. The unwinding and deviation correcting device for a prepreg slitting machine according to claim 1, characterized in that: The unwinding shaft is connected to the output end of the prepreg winding device and is used for actively unwinding the prepreg. The unwinding shaft is an air expansion shaft.

3. The unwinding and deviation correcting device for a prepreg slitting machine according to claim 1, characterized in that: A deviation correction sensor is provided on one side of the moving direction of the first traction roller traction prepreg, for detecting the deviation of the prepreg.

4. The unwinding and deviation correcting device for a prepreg slitting machine according to claim 3, characterized in that: The deviation correction sensor adopts a sensor which does not contact the semi-surrounding prepreg.

5. The unwinding and deviation correcting device for a prepreg slitting machine according to claim 1, characterized in that: The third traction roller passes through the vertical plate, and a traction motor is arranged on one side of the third traction roller passing through the vertical plate to drive the third traction roller to rotate.

6. The unwinding and deviation correcting device for a prepreg slitting machine according to claim 1, characterized in that: The deviation correction moving mechanism includes a plurality of moving shafts, the plurality of moving shafts are fixedly connected between the deviation correction frame plate and the vertical plate, the moving shafts penetrate the vertical plate, and the moving shafts are slidably connected to the vertical plate; One of the moving shafts is connected to the output end of the servo cylinder.

7. The unwinding and deviation correcting device for a prepreg slitting machine according to claim 1, characterized in that: A support rod is arranged between the mounting seat and the vertical plate, and two ends of the support rod are fixedly connected to the vertical plate and the mounting seat respectively.

8. The unwinding and deviation correcting device for a prepreg slitting machine according to claim 1 is characterized in that: The deflection correction sensor is electrically connected to the servo motor, and the servo motor controls the moving shaft and the deflection correction frame plate to perform deflection correction according to the sensing signal of the deflection correction sensor.

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