High-speed fiber winding yarn tension maintaining device

Abstract

The invention discloses a high-speed fiber winding yarn tension maintaining device and belongs to the technical field of fiber winding production equipment. Comprising a bottom plate and supporting straight plates on the two sides, and a glue receiving groove is formed in the middle position of the combination of the two supporting straight plates and the bottom plate; the proportional valve capable of controlling the output of the low-friction air cylinder is arranged on one side, the proportional valve controls the output gas of the proportional valve through the PLC, the output strength of the low-friction air cylinder is effectively controlled, the output response speed of the whole low-friction air cylinder can be greatly increased, and therefore when the fiber winding machine decelerates and yarn is excessively pulled, the output strength of the low-friction air cylinder is effectively improved. According to the low-friction air cylinder, the air cylinder moves upwards rapidly synchronously or even in advance to tighten the yarn, so that the tension is kept all the time, and the product quality is remarkably improved; the magnetic switches for sensing the up-and-down movement condition of the low-friction air cylinder are arranged on the surface of the low-friction air cylinder, and signals are transmitted to the PLC through the magnetic switches; and by arranging the multiple slave cylinders, the response speed of the low-friction air cylinder is more sensitive and faster.

Description

Technical Field

[0001] The invention belongs to the technical field of fiber winding production equipment, and in particular relates to a high-speed fiber winding yarn tension maintaining device. Background Art

[0002] Filament winding is one of the main manufacturing processes for resin-based composite materials. It is a method in which continuous fiber roving or cloth tape is impregnated with resin glue under controlled tension and predetermined linear shape, continuously wound on a core mold or liner corresponding to the inner cavity size of the product, and then cured at room temperature or under heating conditions to form a product of a certain shape.

[0003] In the fiber winding molding process, in the dipping unit, the yarn passes through a tension cylinder that can move vertically up and down. Because the winding main machine drives the yarn to move frequently at high speed, during acceleration, the yarn pulls the cylinder downward. During deceleration, the yarn still maintains the original speed, resulting in over-pulling of the yarn, causing the yarn to sag. At this time, the cylinder moves upward to tighten the yarn. Because part of the yarn sags, the tension cannot be maintained. This part of the yarn is loose and has no tension when it is wrapped around the pressure vessel, affecting product quality. Therefore, it is imperative to develop a method for maintaining yarn tension during high-speed fiber winding. Summary of the invention

[0004] The present invention mainly solves the technical problems existing in the above-mentioned prior art and provides a high-speed fiber winding yarn tension maintaining device.

[0005] The above technical problems of the present invention are mainly solved by the following technical solutions: a high-speed fiber winding and yarn tension maintaining device, comprising a bottom plate and supporting straight plates on both sides, a glue connection groove is formed in the middle position of the combination of the two supporting straight plates and the bottom plate, characterized in that: the first winding drum, the second winding drum, the third winding drum and the fourth winding drum are respectively arranged from front to back in the glue connection groove, the left and right sides of the first winding drum, the second winding drum, the third winding drum and the fourth winding drum are plugged into the supporting straight plates on both sides, and the connection is installed upward through the slot hole, the slot holes on both sides are provided with adjustment plates, and the two supporting straight plates are mutually connected. A mounting vertical plate is provided on the side away from the cylinder mounting plate, which extends upward and has a top that is inclined and bent backward. Support feet are provided on the top of the two mounting vertical plates, and a cylinder mounting plate is connected to the top of the two supporting feet. A low-friction cylinder is provided on the top of the cylinder mounting plate, and a plurality of magnetic switches are distributed on the side of the low-friction cylinder from top to bottom. The output end of the low-friction cylinder passes through the cylinder mounting plate downward, and a floating joint is provided on the output end. The bottom of the floating joint is connected to a connecting plate, and side plates are provided on the bottom of both sides of the connecting plate, and a fifth winding reel is rotatably connected between the two side plates.

[0006] Preferably, a locking shaft is connected to the sides of the two supporting feet facing each other, and the locking shaft is located below the front and rear sides of the connecting plate.

[0007] Preferably, a limit plate is provided on the side facing each other of the two supporting feet, and the limit plates are provided corresponding to the left and right sides of the connecting plate. Bearing mounting seats are provided at the bottom of the left and right sides of the connecting plate. Rolling bearings are provided on the front and rear side surfaces on the left and right sides of the connecting plate and the bottom of the bearing mounting seats. The four groups of rolling bearings connected to the connecting plate extend to the front and rear sides of the limit plate respectively.

[0008] Preferably, a pad is connected to the bottom of the limit rod, and the pad is installed on the top of the supporting straight plate. A buffer mounting seat is installed on the side of the two pads facing each other, and an oil buffer is plugged into the buffer mounting seat. The oil buffer is located directly below the two side plates.

[0009] Preferably, a wire-supporting rod is provided at the lower rear side of the fourth winding drum, and both sides of the wire-supporting rod are rotatably connected to the supporting straight plates on both sides.

[0010] Preferably, a proportional valve interconnected with the low-friction cylinder is provided on the side surface of the mounting vertical plate on one side.

[0011] Preferably, the magnetic switches are evenly spaced twelve from top to bottom on the sides corresponding to the low-friction cylinders, the bottom plate is plugged into the bottoms of the two supporting straight plates, and handles are provided on the front and rear sides.

[0012] The present invention has the beneficial effects of: by arranging a proportional valve capable of controlling the output size of the low-friction cylinder on one side, the proportional valve controls the size of the gas output by the proportional valve through the PLC, and effectively controls the intensity of the output of the low-friction cylinder, which can greatly improve the response speed of the entire low-friction cylinder output, so that when the fiber winding machine decelerates and the yarn is over-pulled, the cylinder moves upward quickly synchronously or even in advance to tighten the yarn, so that the tension is always maintained, which significantly improves the product quality, and by arranging a plurality of magnetic switches on the surface of the low-friction cylinder for sensing its up and down movement, and transmitting signals to the PLC through the magnetic switches, the reaction speed of the low-friction cylinder can be made more sensitive and quick by setting a plurality of different positions and corresponding different cylinder output forces, so that the subsequent stretching can be faster, thereby better ensuring the tension of the yarn.

[0013] By arranging an oil buffer under the two side plates, it is possible to prevent all structures on the entire connecting plate from being compressed when pressed down, thereby playing a buffering and compressing effect, and preventing the fifth winding drum from being damaged by excessive downward pressure. The bottom plate is inserted between the two supporting straight plates, and when too much glue of the yarn drips off the bottom plate, the handle can be pulled out for quick cleaning and replacement. By respectively arranging a bearing mounting seat and a rolling bearing at the left and right ends of the connecting plate, the rolling bearing there limits the side of the limit plate, and at the same time, rolling bearings are arranged on the front and rear sides of both ends of the connecting plate, and the rolling bearings there correspond to the front and rear sides of the limit plate, so that it can be more stable when moving up and down on the connecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a three-dimensional structure of the front side of the present invention;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the back side of the present invention;

[0016] Figure 3 It is a schematic diagram of a three-dimensional structure of the bottom of the present invention;

[0017] Figure 4 It is a front structural schematic diagram of the present invention;

[0018] Figure 5 yes Figure 3 A schematic diagram of an enlarged structure at A in the middle;

[0019] Figure 6 It is a schematic diagram of the internal controller flow.

[0020] In the figure: 1. magnetic switch; 2. low friction cylinder; 3. cylinder mounting plate; 4. restraining shaft; 5. fifth bobbin; 6. supporting foot; 7. limit plate; 8. buffer mounting seat; 9. second bobbin; 10. first bobbin; 11. bottom plate; 12. supporting straight plate; 13. mounting vertical plate; 14. pad; 15. fourth bobbin; 16. proportional valve; 17. third bobbin; 18. support rod; 19. adjusting plate; 20. yarn; 21. proportional valve mounting seat; 22. connecting plate; 23. rolling bearing; 24. bearing mounting seat; 25. side plate; 26. oil buffer; 27. floating joint. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0022] Embodiment: A high-speed fiber winding device for maintaining yarn tension, such as Figure 1-Figure 6As shown, it includes a bottom plate 11 and support straight plates 12 on both sides, the bottom plate 11 is plugged into the bottom of the two support straight plates 12, and handles are provided on the front and rear sides, a glue connection groove is formed in the middle position of the combination of the two support straight plates 12 and the bottom plate 11, and the first winding drum 10, the second winding drum 9, the third winding drum 17 and the fourth winding drum 15 are respectively provided in the glue connection groove from front to back, and the left and right sides of the first winding drum 10, the second winding drum 9, the third winding drum 17 and the fourth winding drum 15 are plugged into the support straight plates 12 on both sides, and the connection is installed upward through the slot hole, and the slots on both sides The holes are provided with adjustment plates 19, and a support rod 18 is provided at the lower rear side of the fourth winding drum 15. The two sides of the support rod 18 are rotatably connected to the support straight plates 12 on both sides. The two support straight plates 12 are provided with mounting vertical plates 13 on the sides away from each other. The mounting vertical plates 13 extend upward and the top is tilted and bent backward. The tops of the two mounting vertical plates 13 are provided with support feet 6. The tops of the two supporting feet 6 are connected with cylinder mounting plates 3. The top of the cylinder mounting plate 3 is provided with a low-friction cylinder 2. The side of the mounting vertical plate 13 on one side is provided with a A proportional valve 16 is connected, and a plurality of magnetic switches 1 are arranged on the side of the low-friction cylinder 2 from top to bottom. The output end of the low-friction cylinder 2 is downwardly penetrated through the cylinder mounting plate 3, and a floating joint 27 is arranged on the output end. The bottom of the floating joint 27 is connected to a connecting plate 22. The bottoms of both sides of the connecting plate 22 are provided with side plates 25. A fifth winding drum 5 is rotatably connected between the two side plates 25. A locking shaft 4 is connected to the side of the two supporting feet 6 facing each other. The locking shaft 4 is located below the front and rear sides of the connecting plate 22, and is used to connect each supporting foot in the next year through the locking shaft 4. The stability of the top connection of the seat 6, the magnetic switch 1 corresponds to the side of the low-friction cylinder 2, and there are twelve of them evenly distributed from top to bottom. The low-friction cylinder 2 drives the floating joint 27 at the output end and the connecting plate 22 to move downward. The bottom of the connecting plate 22 is connected to the fifth winding drum 5 connected by the side plate 25, which can be driven up and down synchronously. Because the surfaces of the first winding drum 10, the second winding drum 9, the third winding drum 17, the fourth winding drum 15 and the fifth winding drum 5 are wound with yarn 20, the tension state of the yarn 20 can be controlled by controlling the up and down lifting of the fifth winding drum 5.

[0023] A limit plate 7 is provided on the side facing each other of the two supporting feet 6, and the limit plates 7 are provided corresponding to the left and right sides of the connecting plate 22. A bearing mounting seat 24 is provided at the bottom of the left and right sides of the connecting plate 22. Rolling bearings 23 are provided on the front and rear side surfaces of the left and right sides of the connecting plate 22 and the bottom of the bearing mounting seat 24. Four groups of rolling bearings 23 connected to the connecting plate 22 extend to the front and rear sides of the limit plate 7 respectively. A pad 14 is connected to the bottom of the limit rod, and the pad 14 is installed on the top of the supporting straight plate 12. A buffer mounting seat 8 is installed on the side facing each other of the two pads 14. An oil buffer 26 is plugged into the buffer mounting seat 8, and the oil buffer 26 is located directly below the two side plates 25.

[0024] By arranging an oil buffer 26 under the two side plates 25, it is possible to prevent all structures on the entire connecting plate 22 from playing a buffering and effect when being pressed down, thereby preventing excessive pressure from causing damage to the fifth winding drum 5. The bottom plate 11 is inserted and arranged between the two supporting straight plates 12. When too much glue of the yarn 20 drips on the bottom plate 11, the handle can be pulled out for quick cleaning and replacement. By respectively arranging a bearing mounting seat 24 and a rolling bearing 23 at the left and right ends of the connecting plate 22, the rolling bearing 23 here limits the side of the limit plate 7. At the same time, rolling bearings 23 are arranged on the front and rear sides of both ends of the connecting plate 22. The rolling bearings 23 here are arranged corresponding to the front and rear sides of the limit plate 7, so that when the connecting plate 22 moves up and down, it can be more stable.

[0025] Principle of the present invention: the low friction cylinder 2 is in the upper half of the entire cylinder stroke, and the proportional valve 16 outputs a relatively small air pressure. As the magnetic switch 1 detects that the tension is maintained and the cylinder is descending, the output air pressure of the proportional valve 16 gradually increases. When the fiber winding machine starts to accelerate winding, the first bobbin 10, the second bobbin 9, the third bobbin 17 and the fourth bobbin 15 begin to rotate as the yarn 20 is pulled. At this time, the fifth bobbin 5 at the top moves downward synchronously, so that the connecting plate 22 connected thereto and the low friction cylinder 2 at the top begin to move downward. At this time, as the cylinder moves downward, the output air pressure of the proportional valve 16 gradually increases as the low friction cylinder 2 moves downward. When the fiber winding machine decelerates, the output air pressure of the proportional valve 16 increases synchronously or in advance, so that the low friction cylinder 2 moves upward faster, always tightens the yarn 20, and prevents the yarn 20 from drooping without tension due to inertia, thereby achieving the function of maintaining the tension of the yarn 20.

[0026] The induction principle of the cylinder magnetic switch is based on magnetic induction technology. Its working principle is as follows:

[0027] 1. The function of the magnetic piston: A magnetic piston is usually installed inside the cylinder. When the cylinder is working, the piston moves with the expansion and contraction of the cylinder.

[0028] 2. Magnetic switch induction magnetic field: The magnetic switch is usually installed on the outer wall of the cylinder. When the piston moves to a position close to the switch, the magnetic field of the magnetic piston will be sensed by the switch through the cylinder wall.

[0029] 3. Hall sensor or reed switch: Hall effect sensor or reed switch is used inside the magnetic switch.

[0030] Hall Effect Sensor: When a magnetic field passes through a Hall Effect sensor, a voltage change is generated inside the sensor, triggering a signal output.

[0031] Reed switch: A reed switch is a switch consisting of two metal reeds. When a magnetic field approaches, the two metal reeds will come into contact, closing the circuit and generating an output signal.

[0032] 4. Output signal: Once the magnetic switch senses the magnetic field of the piston, it will output an electrical signal to inform the control system of the current position of the piston. These signals can be used to control the stroke, limit or position feedback of the cylinder.

[0033] Therefore, the cylinder magnetic switch can accurately detect the position of the piston inside the cylinder to ensure precise control during the working process.

[0034] Finally, it should be pointed out that the above embodiments are only representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention should be considered to belong to the protection scope of the present invention.

Claims

1. A high-speed fiber winding yarn tension maintaining device, comprising a bottom plate (11) and supporting straight plates (12) on both sides, wherein a glue connection groove is formed in the middle position of the combination of the two supporting straight plates (12) and the bottom plate (11), characterized in that: The glue connection groove is provided with a first winding drum (10), a second winding drum (9), a third winding drum (17) and a fourth winding drum (15) from front to back, respectively; the left and right sides of the first winding drum (10), the second winding drum (9), the third winding drum (17) and the fourth winding drum (15) are plugged into the supporting straight plates (12) on both sides, and the connection parts are installed upward through slot holes; the slot holes on both sides are provided with adjustment plates (19); the two supporting straight plates (12) are provided with mounting vertical plates (13) on the sides away from each other; the mounting vertical plates (13) extend upward and the top is tilted and bent backward; the two mounting vertical plates (13) are provided with mounting vertical plates (13) on both sides; A supporting foot (6) is arranged on the top of each of the two supporting foots (6), a cylinder mounting plate (3) is connected to the top of each of the two supporting foots (6), a low-friction cylinder (2) is arranged on the top of each of the cylinder mounting plates (3), a plurality of magnetic switches (1) are arranged on the side of each of the low-friction cylinders (2) from top to bottom, an output end of each of the low-friction cylinders (2) passes through the cylinder mounting plate (3) downward, and a floating joint (27) is arranged on the output end, a connecting plate (22) is connected to the bottom of each of the two sides of the connecting plate (22), side plates (25) are arranged on the bottom of each of the two side plates (25), and a fifth winding drum (5) is rotatably connected between the two side plates (25).

2. A high-speed fiber winding yarn tension maintaining device according to claim 1, characterized in that: A locking shaft (4) is connected to one side of the two supporting feet (6) facing each other, and the locking shaft (4) is located below the front and rear sides of the connecting plate (22).

3. A high-speed fiber winding yarn tension maintaining device according to claim 1, characterized in that: A limit plate (7) is provided on the side facing each other of the two support feet (6), and the limit plate (7) is provided on the left and right sides of the connecting plate (22). The bottoms of the left and right sides of the connecting plate (22) are provided with bearing mounting seats (24). The front and rear side surfaces of the left and right sides of the connecting plate (22) and the bottom of the bearing mounting seats (24) are provided with rolling bearings (23). Four groups of rolling bearings (23) connected to the connecting plate (22) extend to the front and rear sides of the limit plate (7) respectively.

4. A high-speed fiber winding yarn tension maintaining device according to claim 3, characterized in that: The bottom of the limit rod is connected to a pad (14), and the pad (14) is installed on the top of the supporting straight plate (12). A buffer mounting seat (8) is installed on the side facing each other of the two pads (14), and an oil buffer (26) is inserted into the buffer mounting seat (8). The oil buffer (26) is located directly below the two side plates (25).

5. A high-speed fiber winding yarn tension maintaining device according to claim 1, characterized in that: A thread-supporting rod (18) is provided at the lower rear side of the fourth winding drum (15), and two sides of the thread-supporting rod (18) are rotatably connected to the supporting straight plates (12) at two sides.

6. A high-speed fiber winding yarn tension maintaining device according to claim 1, characterized in that: A proportional valve (16) interconnected with the low-friction cylinder (2) is arranged on the side surface of the vertical mounting plate (13) on one side.

7. A high-speed fiber winding yarn tension maintaining device according to claim 1, characterized in that: The magnetic switches (1) correspond to the side surfaces of the low-friction cylinder (2) and are evenly spaced from top to bottom. The bottom plate (11) is plugged into the bottoms of the two supporting straight plates (12), and handles are provided on the front and rear sides.

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