Reciprocating device of yarn swinging machine

Abstract

The utility model discloses a reciprocating device of a silk swaying machine, belongs to the technical field of silk swaying machines, and provides the reciprocating device of the silk swaying machine, which can improve the laying uniformity of fibers during drying, and comprises a bottom plate, a rack and a limiting mechanism are arranged on the bottom plate, and the movable end of the limiting mechanism is connected with a feeding mechanism; the feeding mechanism is suitable for rotating around a vertical shaft or swinging in a vertical plane, a transmission rod is rotationally connected to the rack and comprises a plurality of coaxial screws, the screw pitches of the screws are different, each screw is in threaded fit with a traction block, and a servo motor is further arranged on the rack. The servo motor is arranged in the reciprocating mechanism to serve as a power source, the reversing time difference of swing is shortened by utilizing the advantages of high precision and high-performance dynamic response of the servo motor, the reciprocating mechanism operates according to a programmed program, accumulative errors in operation are automatically adjusted, accurate operation can be achieved, the uniformity of fiber placement is improved, and the service life of the reciprocating mechanism is prolonged. The method is suitable for production of high-quality composite fibers.

Description

Technical Field

[0001] This application relates to the technical field of filament winding machines, and particularly to a reciprocating device for a filament winding machine. Background Art

[0002] Currently, general reciprocating filament winding runs at a constant speed. Due to the large stroke and the time difference during commutation, filament winding short circuits and unevenness occur, affecting product quality. Moreover, as the output increases, the filament winding width also continuously increases, and the influence of the large stroke and long commutation time on the filament winding uniformity will be more obvious. To meet the process requirements of high-quality fibers, there is an urgent need to propose a new reciprocating device for a filament winding machine. Summary of the Invention

[0003] The purpose of this application is to provide a reciprocating device for a filament winding machine that can improve the laying uniformity of fibers during drying.

[0004] To achieve the above object, this application provides a reciprocating device for a filament winding machine: including a bottom plate, on which a frame and a limiting mechanism are provided. The movable end of the limiting mechanism is connected to a feeding mechanism, and the feeding mechanism is adapted to rotate around a vertical axis or swing in a vertical plane. A transmission rod is rotatably connected to the frame. The transmission rod includes a number of coaxial screw rods with different pitches. Each screw rod is threadedly engaged with a pulling block, and each pulling block can independently drive the feeding mechanism to make a reciprocating swing around the vertical axis. A servo motor is also provided on the frame, which is adapted to drive the transmission rod to rotate forward and backward, and can stably and efficiently achieve reciprocating motion.

[0005] As a preference, the transmission rod includes an integrally formed first-stage screw rod, a second-stage screw rod, and a third-stage screw rod. The second-stage screw rod is located between the first-stage screw rod and the third-stage screw rod. The pitch of the second-stage screw rod is greater than the pitch of the first-stage screw rod and less than the pitch of the third-stage screw rod, and the three screw rods have different transmission ratios.

[0006] As a preference, there is a smooth shaft between the first-stage screw rod and the second-stage screw rod, and isolation rings are provided at both ends of the smooth shaft. The end of the first-stage screw rod facing away from the second-stage screw rod is fixedly connected to an end shaft through a limiting ring, and the smooth shaft and the end shaft are adapted to be rotatably connected to the frame to ensure the stability of the transmission rod.

[0007] As a preference, there is a smooth shaft between the second-stage screw rod and the third-stage screw rod, and isolation rings are provided at both ends of the smooth shaft. The end of the third-stage screw rod facing away from the second-stage screw rod is fixedly connected to an end shaft through a limiting ring, and the smooth shaft and the end shaft are adapted to be rotatably connected to the frame, which is also used to restrain the transmission rod.

[0008] As a preference, the frame includes a limiting frame and a configuration frame. The limiting frame and the optical axis cooperate to form a rotating pair. The configuration frame and the end shaft cooperate to form a rotating pair. The servo motor is fixedly connected to the outer side surface of the configuration frame, and the output end of the servo motor is connected to the end shaft to provide power for the transmission rod.

[0009] As a preference, each pulling block is provided with a threaded hole, and the thread of the threaded hole is the same as that of the corresponding screw. The upper end surface of the pulling block is a supporting surface, which is suitable for contacting the bottom surface of the feeding mechanism. The bottom surface of the feeding mechanism is also provided with a sliding groove. The pulling block has a sliding column on the supporting surface, which is suitable for cooperating with the sliding groove to form a sliding pair to ensure that the feeding mechanism can swing smoothly.

[0010] As a preference, there are a pair of configuration frames, and a guide rail is fixedly connected between the two configuration frames. The pulling block is provided with a sliding hole, which is suitable for cooperating with the guide rail to form a sliding pair to ensure the stability of the pulling block.

[0011] As a preference, the limiting mechanism includes a linkage frame and a base. The base is fixedly connected to the upper surface of the bottom plate. The upper end of the base is provided with a shaft hole. The linkage frame includes a turntable. The lower end of the turntable has a swing shaft, which is suitable for cooperating with the shaft hole to form a rotating pair. The upper end surface of the turntable is connected with a hinge shaft through a shaft frame. The bottom surface of the feeding mechanism also has a hinge sleeve, which is suitable for cooperating with the hinge shaft to form a rotating pair, so that the feeding mechanism has two degrees of rotational freedom.

[0012] As a preference, an anti-collision component is further arranged on the configuration frame. The anti-collision component includes a guide rod inserted into the configuration frame. One end of the guide rod located between the two configuration frames is fixedly connected with a blocking handle. A spring is sleeved outside the guide rod, and the spring is located between the blocking handle and the configuration frame to play a buffering role.

[0013] As a preference, the other end of the guide rod passes through the configuration frame and is threadedly connected with an adjusting nut, which can adjust the formation and softness of the anti-collision component.

[0014] Compared with the prior art, the beneficial effects of the present application are as follows:

[0015] (1) By configuring a servo motor as a power source in the reciprocating mechanism and utilizing the advantages of high precision and high-performance dynamic response of the servo motor, the commutation time difference of the swing is shortened, so that it runs according to the programmed procedure and automatically adjusts the accumulated error during operation, and can achieve precise operation, improve the uniformity of wire laying, and is applicable to the production process of high-quality composite fibers;

[0016] (2) By setting three regions with adjustable distance and speed on the transmission rod of the reciprocating mechanism, the speed and range of swinging can be adjusted according to actual needs without changing the rotational speed of the servo motor, which has high flexibility and economic practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a three-dimensional schematic diagram of the overall structure of the reciprocating device of the wire swinging machine.

[0018] Figure 2 FIG. is a three-dimensional schematic diagram of the reciprocating device of the wire swinging machine after removing the feeding mechanism.

[0019] Figure 3 FIG. is a three-dimensional schematic diagram of the cooperation between the driving block and the transmission rod of the reciprocating device of the wire swinging machine.

[0020] Figure 4 FIG. is a three-dimensional schematic diagram of the transmission rod of the reciprocating device of the wire swinging machine.

[0021] Figure 5 FIG. is a three-dimensional schematic diagram of the driving block of the reciprocating device of the wire swinging machine.

[0022] Figure 6 FIG. is a three-dimensional schematic diagram of the linkage frame of the reciprocating device of the wire swinging machine.

[0023] Figure 7 FIG. is a three-dimensional sectional view of the base of the reciprocating device of the wire swinging machine.

[0024] Figure 8 FIG. is a schematic diagram of the bottom structure of the feeding mechanism of the reciprocating device of the wire swinging machine.

[0025] In the figure: 1, bottom plate; 2, frame; 210, limit frame; 220, configuration frame; 230, guide rail; 3, transmission rod; 301, first-stage screw; 302, second-stage screw; 303, third-stage screw; 304, optical axis; 305, isolation ring; 306, end shaft; 307, limit ring; 4, driving block; 401, supporting surface; 402, sliding column; 403, screw hole; 404, sliding hole; 5, servo motor; 6, limit mechanism; 610, linkage frame; 611, turntable; 612, swing shaft; 613, shaft frame; 614, hinge shaft; 620, base; 621, shaft hole; 7, anti-collision component; 701, guide rod; 702, blocking handle; 703, spring; 704, adjusting nut; 8, feeding mechanism; 801, chute; 802, hinge sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, in combination with the specific embodiments, the present application will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0027] In the description of the present application, it should be noted that for orientation terms, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated orientation and positional relationship are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present application.

[0028] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence.

[0029] The terms "comprising" and "having" in the description and claims of the present application, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units does not have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0030] As Figure 1-8 shown in the reciprocating device of the wire laying machine, it includes a bottom plate 1, on which a frame 2 and a limiting mechanism 6 are arranged. Among them, the movable end of the limiting mechanism 6 is connected with a feeding mechanism 8, which can throw out the materials required for production. The limiting mechanism 6 includes a detachable linkage frame 610 and a base 620. The base 620 is fixedly connected to the upper surface of the bottom plate 1. An axially vertical shaft hole 621 is opened at the upper end of the base 620. The linkage frame 610 includes a turntable 611. The lower end of the turntable 611 has a similarly vertical pendulum shaft 612, which is used to cooperate with the shaft hole 621 to form a rotating pair. Since the pendulum shaft 612 and the shaft hole 621 are longitudinally inserted, the linkage frame 610 can be conveniently mated with and detached from the base 620. The upper end surface of the turntable 611 is connected with a hinge shaft 614 through a shaft bracket 613. The shaft bracket 613 is usually integral with the turntable 611, and the hinge shaft 614 can rotate relative to the shaft bracket 613. The bottom surface of the feeding mechanism 8 also has a hinge sleeve 802, which is used to cooperate with the hinge shaft 614 to form a rotating pair. Since the axis of the hinge shaft 614 is horizontal and is usually set perpendicular to the axis of the pendulum shaft 612, the feeding mechanism 8 can rotate around the vertical axis or swing in the vertical plane.

[0031] A transmission rod 3 is rotatably connected to a frame 2. The transmission rod 3 includes a number of coaxial screw rods with different pitches. In this embodiment, the transmission rod 3 includes an integrally formed primary screw rod 301, a secondary screw rod 302, and a tertiary screw rod 303. The axes of the three screw rods are collinear, but the tertiary screw rod 303 has a different pitch, and the lengths of the three screw rods do not need to be the same. Generally, the screw rod with a larger pitch is longer, and such a design is more reasonable. The pitch of each screw rod is uniform. The secondary screw rod 302 is located between the primary screw rod 301 and the tertiary screw rod 303. In order to make the pitch change gradually, the pitch of the secondary screw rod 302 is greater than the pitch of the primary screw rod 301 and less than the pitch of the tertiary screw rod 303.

[0032] There is a coaxial optical shaft 304 between the primary screw rod 301 and the secondary screw rod 302. Both ends of the optical shaft 304 have coaxial isolation rings 305. The end of the primary screw rod 301 facing away from the secondary screw rod 302 is fixedly connected to a coaxial end shaft 306 through a limit ring 307. The optical shaft 304 and the end shaft 306 are used for rotatably connecting to the frame 2; there is also a coaxial optical shaft 304 between the secondary screw rod 302 and the tertiary screw rod 303, and both ends of the optical shaft 304 also have coaxial isolation rings 305. In fact, all the isolation rings 305 are located between the optical shaft 304 and the screw rod. Moreover, the outer diameters of the three screw rods are the same, and the outer diameter of the screw rod is greater than the diameter of the optical shaft 304 and less than the diameter of the isolation ring 305, forming a stepped shaft structure. The end of the tertiary screw rod 303 facing away from the secondary screw rod 302 is also fixedly connected to a coaxial end shaft 306 through a limit ring 307. The optical shaft 304 and the end shaft 306 are used for rotatably connecting to the frame 2. The frame 2 includes a limit frame 210 and a configuration frame 220 fixedly connected to the bottom plate 1. There are usually two limit frames 210 and two configuration frames 220. The upper end of the limit frame 210 cooperates with the optical shaft 304 to form a rotating pair, and the configuration frame 220 cooperates with the end shaft 306 to form a rotating pair. The end shaft 306 is mostly located in the middle of the configuration frame 220.

[0033] A servo motor 5 is also provided on the frame 2, which has high-precision dynamic response capabilities. The housing of the servo motor 5 is fixedly connected to the outer side of the configuration frame 220. The output end of the servo motor 5 is connected to the end shaft 306, and is used to drive the transmission rod 3 to rotate forward and backward, which is the basis for realizing reciprocating motion.

[0034] A driving block 4 is threadedly engaged with each screw rod. Each driving block 4 is provided with a threaded hole 403. The thread of the threaded hole 403 is the same as that of the corresponding screw rod, which can convert the rotational motion of the screw rod into a translational motion. In this way, each driving block 4 can independently drive the feeding mechanism 8 to swing reciprocally around the vertical axis. The upper end surface of the driving block 4 is a supporting surface 401 for contacting the bottom surface of the feeding mechanism 8. Under the action of the contact pressure, the driving block 4 can keep the supporting surface 401 facing upward all the time. The bottom surface of the feeding mechanism 8 is also provided with a sliding groove 801. The driving block 4 has a sliding column 402 on the supporting surface 401, which just cooperates with the sliding groove 801 to form a sliding pair, so as to compensate for the relative crosstalk when the feeding mechanism 8 swings, and ensure that there is almost no interference when the feeding mechanism 8 swings. A guide rail 230 is fixedly connected between the two configuration frames 220. Usually, there are two guide rails 230, which are parallel to each other and both in the horizontal direction. The driving block 4 is provided with a sliding hole 404, which just cooperates with the guide rail 230 to form a sliding pair, which can effectively improve the movement stability of the driving block 4 and enable the driving block 4 to maintain a vertical state even when it is not in contact with the feeding mechanism 8.

[0035] An anti-collision assembly 7 is also arranged on the configuration frame 220 to prevent the feeding mechanism 8 from making hard contact with the frame 2. The specific structure of the anti-collision assembly 7 includes a guide rod 701 inserted into the configuration frame 220. The guide rod 701 can slide relative to the configuration frame 220. One end of the guide rod 701 located between the two configuration frames 220 is fixedly connected with a blocking handle 702 for directly contacting the side surface of the feeding mechanism 8. A spring 703 is sleeved outside the guide rod 701. The spring 703 is located between the blocking handle 702 and the configuration frame 220, which is used to absorb the impact force and play a buffering role, and can store the kinetic energy of the reverse movement of the feeding mechanism 8, so as to prevent the load of the servo motor 5 from being too high due to the too large inertia of the feeding mechanism 8. The other end of the guide rod 701 passes through the configuration frame 220 and is threadedly connected with an adjusting nut 704. By rotating the adjusting nut 704, the maximum stroke of the guide rod 701 can be adjusted, and at the same time, the compression degree of the spring 703, that is, the softness and hardness of the anti-collision assembly 7, can be changed.

[0036] Working principle: During operation, the servo motor 5 drives the transmission rod 3 to perform a reciprocating and uniform rotational motion, causing the pulling block 4 to drive the feeding mechanism 8 to swing uniformly around the limiting mechanism 6. Usually, it is default to use the pulling block 4 located on the secondary screw 302 to cooperate with the feeding mechanism 8 independently. When it is necessary to reduce the swinging speed or distance, just turn off the servo motor 5, lift the end of the feeding mechanism 8 away from the limiting mechanism 6, and cooperate with the pulling block 4 located on the primary screw 301. Then start the servo motor 5 again, and the swinging frequency or amplitude of the feeding mechanism 8 can be reduced without changing the output state of the servo motor 5; when it is necessary to increase the swinging speed and distance, the end of the feeding mechanism 8 away from the limiting mechanism 6 needs to be lifted and cooperate with the pulling block 4 located on the tertiary screw 303. Similarly, the swinging frequency or amplitude of the feeding mechanism 8 can be increased without changing the output state of the servo motor 5. Since the rotation speed and the maintaining time of the single-direction rotation of the servo motor 5 can be controlled by a program, the reciprocating stroke and speed of this reciprocating mechanism can be adjusted in two ways: stepless and stepless, with high precision and flexibility.

[0037] The above describes the basic principle, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements, and these changes and improvements all fall within the scope of the present application claimed. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A reciprocating device for a swing wire machine, characterized in that: The invention comprises a bottom plate (1), on which a frame (2) and a limiting mechanism (6) are arranged, the movable end of the limiting mechanism (6) is connected to a feeding mechanism (8), the feeding mechanism (8) is suitable for rotating around a vertical axis or swinging in a vertical plane, the frame (2) is rotatably connected to a transmission rod (3), the transmission rod (3) comprises a plurality of coaxial screw rods, the pitches of the plurality of screw rods are all different, each screw rod is threadedly matched with a pulling block (4), each of the pulling blocks (4) can independently drive the feeding mechanism (8) to swing back and forth around the vertical axis, and the frame (2) is also provided with a servo motor (5), suitable for driving the transmission rod (3) to rotate forward and reverse.

2. The reciprocating device of the swing wire machine according to claim 1, characterized in that: The transmission rod (3) comprises an integrated primary screw (301), a secondary screw (302) and a tertiary screw (303); the secondary screw (302) is located between the primary screw (301) and the tertiary screw (303); the pitch of the secondary screw (302) is greater than the pitch of the primary screw (301) and less than the pitch of the tertiary screw (303).

3. The reciprocating device of the swing wire machine according to claim 2, characterized in that: An optical axis (304) is provided between the primary screw (301) and the secondary screw (302); isolation rings (305) are provided at both ends of the optical axis (304); the end of the primary screw (301) facing away from the secondary screw (302) is fixedly connected to an end shaft (306) via a limit ring (307); and the optical axis (304) and the end shaft (306) are suitable for being rotatably connected to the frame (2).

4. The reciprocating device of the swing wire machine according to claim 2, characterized in that: An optical axis (304) is provided between the secondary screw (302) and the tertiary screw (303); isolation rings (305) are provided at both ends of the optical axis (304); an end of the tertiary screw (303) facing away from the secondary screw (302) is fixedly connected to an end shaft (306) via a limit ring (307); and the optical axis (304) and the end shaft (306) are suitable for being rotatably connected to the frame (2).

5. The reciprocating device of the swing wire machine according to any one of claims 3 or 4, characterized in that: The frame (2) comprises a limit frame (210) and a configuration frame (220), the limit frame (210) cooperates with the optical axis (304) to form a rotation pair, the configuration frame (220) cooperates with the end shaft (306) to form a rotation pair, the servo motor (5) is fixedly connected to the outer side surface of the configuration frame (220), and the output end of the servo motor (5) is connected to the end shaft (306).

6. The reciprocating device of the swing wire machine according to claim 5, characterized in that: Each of the actuating blocks (4) is provided with a screw hole (403), the thread of the screw hole (403) being the same as the thread of the corresponding screw rod; the upper end surface of the actuating block (4) is a supporting surface (401) suitable for contacting the bottom surface of the feeding mechanism (8); the bottom surface of the feeding mechanism (8) is also provided with a slide groove (801); the actuating block (4) has a slide column (402) on the supporting surface (401) suitable for cooperating with the slide groove (801) to form a sliding pair.

7. The reciprocating device of the swing wire machine according to claim 6, characterized in that: There is a pair of configuration frames (220), a guide rail (230) is fixedly connected between the two configuration frames (220), and the pull block (4) is provided with a sliding hole (404) suitable for cooperating with the guide rail (230) to form a sliding pair.

8. The reciprocating device of the swing wire machine according to claim 7, characterized in that: The limiting mechanism (6) comprises a linkage frame (610) and a base (620), wherein the base (620) is fixedly connected to the upper surface of the bottom plate (1), and an axial hole (621) is provided at the upper end of the base (620). The linkage frame (610) comprises a turntable (611), and the lower end of the turntable (611) has a swing shaft (612) which is suitable for cooperating with the axial hole (621) to form a rotating pair. The upper end surface of the turntable (611) is connected to a hinge shaft (614) through a shaft frame (613), and the bottom surface of the feeding mechanism (8) also has a hinge sleeve (802) which is suitable for cooperating with the hinge shaft (614) to form a rotating pair.

9. The reciprocating device of the swing wire machine according to claim 7, characterized in that: The configuration frame (220) is also provided with an anti-collision component (7), the anti-collision component (7) comprising a guide rod (701) plugged into the configuration frame (220), one end of the guide rod (701) located between the two configuration frames (220) is fixedly connected with a stop handle (702), the guide rod (701) is covered with a spring (703), and the spring (703) is located between the stop handle (702) and the configuration frame (220).

10. The reciprocating device of the swing wire machine according to claim 9, characterized in that: The other end of the guide rod (701) passes through the configuration frame (220) and is threadedly connected with an adjusting nut (704).

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