Passive unwinding device capable of providing tension for fiber winding machine

Abstract

The utility model discloses a passive unwinding device capable of providing tension for a fiber winding machine, and belongs to the technical field of fiber winding production equipment. Which comprises a frame and is characterized in that a middle partition plate is arranged in the middle of the frame and divides the interior of the frame into an upper cavity and a lower cavity, a plurality of glass fiber materials are arranged in the two cavities, and a tension mechanism is arranged on the right side of the frame; the tension mechanism is arranged at one end of the frame, the brake unit arranged on the tension mechanism actively presses discharged yarns through the air cylinder and the yarn pressing rollers at the output end, and meanwhile, the rubber coating rollers are arranged below the yarn pressing rollers in a matched mode, so that the output yarns can be downwards and tightly pressed with the rubber coating rollers; the tension degree of the yarn pressing roller can be increased through the damper with one side coaxially connected with the yarn pressing roller, so that the winding mode does not need to be changed when the tension of the yarn needs to be adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of filament winding production equipment, in particular to a passive unwinding device capable of providing tension for a filament winding machine. 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 lining corresponding to the inner 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, glass fiber unwinding is passive and cannot actively provide tension, which has a significant adverse effect on subsequent impregnation and winding, affecting the quality of the final product. Therefore, it is imperative to develop a passive unwinding device that can provide a certain tension. Utility Model Content

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a passive unwinding device for a filament winding machine which can provide tension.

[0005] The above-mentioned technical problems of the present invention are mainly solved by the following technical solutions: A passive unwinding device for a fiber winding machine that can provide tension includes a frame, and is characterized in that: a middle partition is provided in the middle of the frame, and the middle partition divides the interior of the frame into two upper and lower cavities, and a plurality of glass fiber materials are provided in both of the cavities. A tension mechanism is provided on the right side of the frame, and the output ends of the tension mechanism are respectively provided corresponding to the right sides of the two cavities. A discharging rack is plugged into the top right side of the frame, and the top of the discharging rack is plugged downward into the frame. The top of the discharging rack extends to the right to the right side of the top of the tension mechanism, and two groups of discharging rollers are provided on the right side of the top of the discharging rack.

[0006] Preferably, the tension structure includes a side frame, a mounting plate, a first cross frame, a brake unit, an auxiliary roller, a rubber-coated roller, a second cross frame and a yarn guide plate. The mounting plate is arranged in two front and rear portions. The side frame is arranged between the mounting plate and the frame so that the mounting plate can be installed on one side of the frame. The first cross frame and the second cross frame are respectively arranged at the top and bottom between the two mounting plates. The second cross frame is arranged on the front side of the first cross frame. The brake unit is arranged in multiple portions on the front side of the first cross frame. The yarn guide plate is arranged on the rear side of the second cross frame. A plurality of guide holes corresponding to each brake unit are provided on the yarn guide plate.

[0007] Preferably, the braking unit includes a cylinder, a damper, a mounting bracket and a yarn pressing roller, the cylinder is fixed on the front side of the first horizontal frame, the mounting bracket is arranged on the output end of the cylinder, the damper and the yarn pressing roller are respectively arranged on the left and right sides of the bottom of the mounting bracket, and the damper and the yarn pressing roller are coaxially connected.

[0008] Preferably, the rubber-coated roller is arranged below each brake unit, and the multiple rubber-coated rollers are connected by auxiliary rollers, and both ends of the auxiliary rollers are connected to the mounting plates on both sides.

[0009] The beneficial effects of the present invention are as follows: a tension mechanism is provided at one end of the frame, and a brake unit provided on the tension structure actively presses the discharged yarn through a cylinder and a yarn pressing roller at the output end; and at the same time, a rubber-coated roller is provided under each yarn pressing roller, which can press the output yarn downward and tightly against the rubber-coated roller; a damper coaxially connected to the yarn pressing roller on one side can increase the tension of the yarn pressing roller, so that the yarn does not need to be changed in the winding method when the tension needs to be adjusted; and at the same time, a yarn guide plate and a plurality of guide holes are provided at the front end of each brake unit, which can discharge the yarn corresponding to each yarn, making the yarn discharge more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a three-dimensional structural diagram of the utility model;

[0011] Figure 2 This is a three-dimensional structural diagram of the tension mechanism of the utility model;

[0012] Figure 3 It is a three-dimensional structural diagram of the brake unit of the utility model.

[0013] In the figure: 1. Frame; 11. Middle partition; 12. Yarn guide mechanism; 13. Sensor; 2. Glass fiber material; 3. Tension mechanism; 31. Side frame; 32. First horizontal frame; 33. Braking unit; 331. Cylinder; 332. Damper; 333. Mounting frame; 334. Yarn pressing roller; 34. Auxiliary roller; 35. Rubber-coated roller; 36. Second horizontal frame; 38. Yarn guide plate; 381. Guide hole; 39. Mounting plate; 4. Discharge frame; 41. Discharge roller. DETAILED DESCRIPTION

[0014] The technical solution of the present invention will be further specifically described below with reference to embodiments and in conjunction with the accompanying drawings.

[0015] Example: A passive unwinding device capable of providing tension for a filament winding machine, such as Figure 1-Figure 3As shown, it includes a frame 1, a middle partition 11 is provided in the middle of the frame 1, and the middle partition 11 divides the interior of the frame 1 into two upper and lower cavities. A plurality of glass fiber materials 2 are provided in the two cavities, and the glass fiber materials 2 in each cavity are divided into two groups. A sensor 13 is provided in the middle position corresponding to each glass fiber material 2 of the two groups of glass fiber materials 2. The sensor 13 adopts a diffuse reflection sensor. A tension mechanism 3 is provided on the right side of the frame 1, and the output ends of the tension mechanism 3 are respectively provided corresponding to the right sides of the two cavities. A discharge rack 4 is plugged into the top right side of the frame 1, and the top of the discharge rack 4 is plugged downward into the frame 1. The top of the discharge rack 4 extends to the right to the right side of the top of the tension mechanism 3, and two groups of discharge rollers 41 are provided on the right side of the top of the discharge rack 4.

[0016] The tension structure includes a side frame 31, a mounting plate 39, a first cross frame 32, a brake unit 33, an auxiliary roller 34, a rubber-coated roller 35, a second cross frame 36 and a yarn guide plate 38. The mounting plate 39 is arranged in two front and rear directions. The side frame 31 is arranged between the mounting plate 39 and the frame 1 so that the mounting plate 39 can be installed on one side of the frame 1. The first cross frame 32 and the second cross frame 36 are respectively arranged at the top and bottom between the two mounting plates 39. The second cross frame 36 is arranged on the front side of the first cross frame 32. The brake unit 33 is arranged in multiple ways on the front side of the first cross frame 32. The yarn guide plate 38 is arranged on the rear side of the second cross frame 36. The yarn guide plate 38 is provided with multiple corresponding brake units 33. The guide hole 381 of the first horizontal frame 32 is provided, and the brake unit 33 includes a cylinder 331, a damper 332, a mounting frame 333 and a yarn pressing roller 334. The cylinder 331 is fixed on the front side of the first horizontal frame 32, and the mounting frame 333 is arranged on the output end of the cylinder 331. The damper 332 and the yarn pressing roller 334 are respectively arranged on the left and right sides of the bottom of the mounting frame 333. The damper 332 and the yarn pressing roller 334 are coaxially connected. The damper 332 can adjust the resistance size in multiple gears to change the tension size. The rubber-coated roller 35 is arranged below each brake unit 33, and the multiple rubber-coated rollers 35 are connected by auxiliary rollers 34. The two ends of the auxiliary rollers 34 are connected to the mounting plates 39 on both sides.

[0017] The principle of the present invention: The device places a glass fiber material 2 in a frame 1, and the sensor 13 detects the presence of the glass fiber material 2. After the material is used up, the production process can be stopped in time to improve production quality and efficiency. The yarn is drawn out from the glass fiber material 2 and passes through the yarn guide mechanism 12. This can avoid the yarn from being entangled and knotted, which affects the winding production efficiency and effect. The yarn then reaches the tension mechanism 3, wherein the cylinder 331 in the tension mechanism 3 extends to drive the yarn pressing roller 334 to press the yarn to the rubber-coated roller 35 below. The damper 332 can adjust the tension of multiple gears without changing the winding method, thereby improving the wetting and winding effects of the glass fiber and solving the adverse effects caused by the passive unwinding of the glass fiber without tension. Then the yarn is discharged from the guide hole 381 on the front yarn guide plate 38 and transmitted upward through the discharge roller 41.

[0018] Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and is susceptible to numerous variations. Any simple modifications, equivalent variations, and modifications to the above embodiments based on the technical essence of the present invention shall be deemed to fall within the scope of protection of the present invention.

Claims

1. A passive unwinding device for a filament winding machine capable of providing tension, comprising a frame (1), characterized in that: A middle partition (11) is provided in the middle of the frame (1), and the middle partition (11) separates the interior of the frame (1) to form two upper and lower cavities, and a plurality of glass fiber materials (2) are provided in both cavities. A tension mechanism (3) is provided on the right side of the frame (1), and the output ends of the tension mechanism (3) are respectively provided on the right sides of the two cavities. A discharge rack (4) is plugged into the top of the right side of the frame (1), and the top of the discharge rack (4) is plugged downward into the frame (1). The top of the discharge rack (4) extends to the right side to the right side of the top of the tension mechanism (3), and two groups of discharge rollers (41) are provided on the right side of the top of the discharge rack (4).

2. A passive unwinding device capable of providing tension for a filament winding machine according to claim 1, characterized in that: The glass fiber materials (2) in each cavity are divided into two groups, and a sensor (13) is provided at the middle position of the two groups of glass fiber materials (2) corresponding to each glass fiber material (2).

3. The passive unwinding device capable of providing tension for a filament winding machine according to claim 1, characterized in that: The tension mechanism comprises a side frame (31), a mounting plate (39), a first cross frame (32), a brake unit (33), an auxiliary roller (34), a rubber-coated roller (35), a second cross frame (36) and a yarn guide plate (38); the mounting plate (39) is arranged in two front and rear positions; the side frame (31) is arranged between the mounting plate (39) and the frame (1) so that the mounting plate (39) can be installed on one side of the frame (1); the first cross frame (32) and the second cross frame (36) are respectively arranged at the top and bottom between the two mounting plates (39); the second cross frame (36) is arranged at the front side of the first cross frame (32); the brake unit (33) is arranged in a plurality of positions at the front side of the first cross frame (32); the yarn guide plate (38) is arranged at the rear side of the second cross frame (36); and the yarn guide plate (38) is provided with a plurality of guide holes (381) corresponding to each brake unit (33).

4. A passive unwinding device capable of providing tension for a filament winding machine according to claim 3, characterized in that: The braking unit (33) comprises a cylinder (331), a damper (332), a mounting frame (333) and a yarn pressing roller (334); the cylinder (331) is fixed to the front side of the first horizontal frame (32); the mounting frame (333) is arranged on the output end of the cylinder (331); the damper (332) and the yarn pressing roller (334) are respectively arranged on the left and right sides of the bottom of the mounting frame (333); and the damper (332) and the yarn pressing roller (334) are coaxially connected.

5. A passive unwinding device capable of providing tension for a filament winding machine according to claim 4, characterized in that: The rubber-coated roller (35) is arranged below each brake unit (33), and the plurality of rubber-coated rollers (35) are connected via auxiliary rollers (34), and both ends of the auxiliary rollers (34) are connected to the mounting plates (39) on both sides.

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