Polymer fiber mechanics performance test impregnation sample preparation equipment

Abstract

The utility model discloses a polymer fiber mechanics performance test impregnation sample preparation equipment, including frame, be equipped with the heating water tank of up and down movement on the frame, be equipped with the heat preservation water tank on the frame, and the water outlet pipe of heat preservation water tank is connected with water sending pump, and the water outlet of water sending pump is connected with heating water tank through water supply pipeline, be equipped with the backwater pipe of intercommunication with heat preservation water tank on heating water tank, be equipped with heating rod and temperature detector in heating water tank, be equipped with the glue tank of placing glue liquid in heating water tank, be equipped with the impregnation roller of lower part in the glue tank of rotation in frame, be equipped with the fiber material roll pay-off mechanism on the frame, be equipped with the tension detection roller on the frame in heating water tank feed side, and the tension detection roller is electrically connected with tension meter, and tension meter is electrically connected with the magnetic powder brake or unwinding motor on the pay-off shaft of fiber material roll pay-off mechanism.

Description

Technical Field

[0001] This utility model relates to a fiber testing device, specifically a polymer fiber mechanical property testing device for impregnation and sample preparation. Background Technology

[0002] Tensile strength of carbon fiber is an important technical indicator characterizing the tensile properties of carbon fiber. It is generally obtained by tensile testing on a carbon fiber tow using impregnated yarn. For the prepared specimen, uniform impregnation and a smooth surface are required. Traditional manual specimen preparation methods are inefficient, cannot accurately control the tension, and the quality is greatly affected by human factors. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an automatic and uniform impregnation equipment for testing the mechanical properties of polymer fibers.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a polymer fiber mechanical property testing impregnation sample preparation device, including a frame, a heating water tank that moves up and down on the frame; an insulated water tank on the frame, the outlet pipe of the insulated water tank being connected to a water pump, the outlet of the water pump being connected to the heating water tank through a water delivery pipe, a return water pipe connected to the insulated water tank on the heating water tank, a heating rod and a thermometer in the heating water tank, a glue-holding tank for holding glue liquid in the heating water tank, and an impregnation roller located in the glue-holding tank rotating on the frame;

[0005] The frame is equipped with a fiber roll unwinding mechanism; a tension detection roller is installed on the feed side of the heating water tank on the frame, and at least one free guide roller is installed on both sides of the tension detection roller on the frame. The tension detection roller is electrically connected to a tension meter, and the tension meter is electrically connected to a magnetic powder brake or unwinding motor on the unwinding shaft of the fiber roll unwinding mechanism; a fiber discharge guide device is installed on the discharge side of the heating water tank on the frame.

[0006] As a preferred embodiment, the fiber roll unwinding mechanism includes a rotating short shaft mounted on an unwinding frame connected to the machine frame. The rotating short shaft is hollow in the middle, and a support tube is sleeved at the end of the rotating short shaft. An air bladder is provided at the end outlet of the rotating short shaft located in the support tube. At least two rows of guide holes are evenly distributed around the support tube.

[0007] Several springs are arranged on the inner wall of the support pipe next to each row of guide holes. A top bar is attached to the inner end of each row of springs. Several guide posts are provided on the top bar that move through the corresponding guide holes. Tensioning pads are detachably mounted between the ends of the guide posts that pass through the guide holes in the same row. The cross section of the tensioning pad is an arc shape that matches the inner sleeve of the wire coil.

[0008] When the airbag is inflated, it pushes the top bar outward, thereby causing the tensioning tile to stretch outward to tighten the inner sleeve of the wire coil.

[0009] As a preferred embodiment, the frame is equipped with a magnetic powder brake that cooperates with the rotating short shaft.

[0010] As a preferred embodiment, the magnetic powder brake or servo motor is located on the side of the frame away from the support sleeve, and the rotating short shaft is connected to the frame via a bearing seat located on the side of the frame near the airbag.

[0011] As a preferred embodiment, the frame is provided with a collection tray for collecting dripping glue below the tension adjustment mechanism. The collection tray is inclined downward along the direction close to the glue tank and one side of the tray edge is located on the glue tank.

[0012] As a preferred embodiment, the frame is provided with a scraper above the dip roller to remove excess adhesive.

[0013] As a preferred embodiment, the frame is equipped with a lifting seat driven by a lifting servo motor, the heating water tank is mounted on the lifting seat, and both the water supply pipe and the return pipe are flexible hoses.

[0014] The beneficial effects of this utility model are:

[0015] The glue tank in this project can accommodate a variety of resins and can be used with resins or other colloids at different temperatures. It is convenient and flexible, and one sample preparation machine can meet various experimental sample preparation requirements.

[0016] To meet different experimental requirements, the impregnation length varies for different fibers. This is achieved by adjusting the up-and-down movement of the glue tank to change the wrap angle, thereby adjusting the impregnation arc length of the fiber.

[0017] The tension and speed adjustment range of this equipment is both wide and precise, which can meet the different internal stress differences of polymer fibers such as plastic fiber, carbon fiber, and glass fiber in sample preparation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the equipment for impregnating and preparing samples for testing the mechanical properties of polymer fibers.

[0019] Figure 2 This is a front view of the fiber material unwinding mechanism.

[0020] Figure 3 This is a side view of the fiber material unwinding mechanism.

[0021] Figure 4 This is a schematic diagram illustrating the working principle of the tension detection roller.

[0022] In the diagram: 1. Frame; 2. Lifting platform; 3. Heating water tank; 4. Insulated water tank; 5. Thermometer; 6. Heating rod; 7. Water pump; 8. Glue tank; 9. Dipping roller; 10. Scraper; 11. Fiber roll unwinding mechanism; 12. Tension detection roller; 13. Free guide roller; 14. Fiber discharge guide device; 15. Collection tray; 16. Tension meter; 17. Inlet water pipe; 18. Return water pipe.

[0023] 111 Unwinding frame, 112 Rotating short shaft, 113 Support pipe, 114 Airbag, 115 End cap; 116 Compressed air connector, 117 End cap, 118 Spring, 119 Top bar, 1110 Guide post, 1111 Tensioning bearing; 1112 Magnetic powder brake, 1113 Bearing seat. Detailed Implementation

[0024] The specific implementation scheme of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] like Figure 1-4 As shown, a polymer fiber mechanical property testing device for impregnation sample preparation includes a frame 1, a lifting seat 2 driven by a lifting servo motor, and a heating water tank 3 on the lifting seat 2; an insulated water tank 4 is also mounted on the frame 1, containing a thermometer 5 and a heating rod 6. The outlet pipe of the insulated water tank 4 is connected to a water pump 7, and the outlet of the water pump 7 is connected to the heating water tank 3 via a water supply pipe. A return water pipe 18 connected to the insulated water tank 4 is mounted on the heating water tank 3. Both the water supply pipe and the return water pipe 18 are flexible hoses. The heating water tank 3 contains the heating rod 6 and the thermometer 5, and a glue-holding tank 8 for holding the adhesive solution. An impregnation roller 9, located in the glue-holding tank 8, is rotatably mounted on the frame 1; a scraper 10 is mounted on the frame 1 above the impregnation roller 9 to remove excess adhesive solution.

[0026] The frame 1 is equipped with a fiber roll unwinding mechanism 11; a tension detection roller 12 is provided on the feed side of the heating water tank 3 on the frame 1, and at least one free guide roller 13 is provided on both sides of the tension detection roller 12 on the frame 1. The tension detection roller 12 is electrically connected to a tension meter 16, and the tension meter 16 is electrically connected to a magnetic powder brake 1112 on the unwinding shaft of the fiber roll unwinding mechanism 11; a fiber discharge guide device 14 is provided on the discharge side of the heating water tank 3 on the frame 1.

[0027] The frame 1 has a collection tray 15 for collecting dripping glue below the tension adjustment mechanism. The collection tray 15 is inclined downward along the direction close to the glue tank 8 and one side of the tray edge is located on the glue tank 8.

[0028] The fiber roll unwinding mechanism 11 includes a rotating short shaft 112 mounted on an unwinding frame 111 connected to the frame 1. The rotating short shaft 112 is hollow in the middle, and an annular boss is provided at one end of the rotating short shaft 112. A support tube 113 is fitted onto the annular boss. A cylindrical air bladder 114 is provided at the end outlet of the rotating short shaft 112 located in the support tube 113. A plug 115 is embedded at the end of the air bladder 114 away from the rotating short shaft 112. A compressed air connector 116 is provided at the other end of the rotating short shaft 112. End caps 117 are provided at both ends of the support tube 113. Four rows of guide holes are evenly distributed circumferentially on the support tube 113.

[0029] Several springs 118 are arranged on the inner wall of the support tube 113 next to each row of guide holes. Each row of springs 118 has a top bar 119 attached to its inner end. The top bar 119 has several guide posts 1110 that move through the corresponding guide holes. Tensioning blocks 1111 are detachably mounted between the ends of the guide posts 1110 that pass through the guide holes in the same row. The cross section of the tensioning blocks 1111 is arc-shaped to match the inner sleeve of the wire roll. When the air bag 114 is inflated, it pushes the top bar 119 outward, thereby causing the tensioning blocks 1111 to expand outward to tighten the inner sleeve of the wire roll.

[0030] The frame 1 is equipped with a magnetic powder brake 1112 that cooperates with the rotating short shaft 112. The magnetic powder brake 1112 is located on the side of the frame 1 away from the support sleeve, and the rotating short shaft 112 is connected to the frame 1 through a bearing seat 1113 located on the side of the frame 1 near the airbag 114.

[0031] This project can achieve a maximum tension of 150N and a maximum experimental speed of 30m / min.

[0032] The fiber bundle output from the fiber unwinding mechanism 11 passes through the free roller, then around the tension detection roller 12, the free roller on the other side, the dip roller 9, and the fiber discharge guide device 14 before being output; the fiber bundle is pressed down into the glue tank 8 by the dip roller 9 to complete the glue coating operation.

[0033] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some examples of its application, and are not intended to limit the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements are all within the protection scope of the present invention.

Claims

1. A polymer fiber mechanical property testing impregnation sample preparation device, comprising a frame, characterized in that: The frame is equipped with a heating water tank that moves up and down; the frame is equipped with an insulated water tank, the outlet pipe of the insulated water tank is connected to a water pump, the outlet of the water pump is connected to the heating water tank through a water supply pipe, the heating water tank is equipped with a return water pipe connected to the insulated water tank, the heating water tank is equipped with a heating rod and a thermometer, the heating water tank is equipped with a glue container for holding glue, and the frame is equipped with a glue-dipping roller located in the glue container at the bottom. The frame is equipped with a fiber roll unwinding mechanism; a tension detection roller is installed on the feed side of the heating water tank on the frame, and at least one free guide roller is installed on both sides of the tension detection roller on the frame. The tension detection roller is electrically connected to a tension meter, and the tension meter is electrically connected to a magnetic powder brake or unwinding motor on the unwinding shaft of the fiber roll unwinding mechanism; a fiber discharge guide device is installed on the discharge side of the heating water tank on the frame.

2. The polymer fiber mechanical property testing impregnation sample preparation equipment as described in claim 1, characterized in that: The fiber roll unwinding mechanism includes a rotating short shaft on the unwinding frame connected to the machine frame. The rotating short shaft is hollow in the middle, and a support tube is sleeved at the end of the rotating short shaft. An air bladder is provided at the end outlet of the rotating short shaft in the support tube. At least two rows of guide holes are evenly distributed around the circumference of the support tube. Several springs are arranged on the inner wall of the support pipe next to each row of guide holes. A top bar is attached to the inner end of each row of springs. Several guide posts are provided on the top bar that move through the corresponding guide holes. Tensioning pads are detachably mounted between the ends of the guide posts that pass through the guide holes in the same row. The cross section of the tensioning pad is an arc shape that matches the inner sleeve of the wire coil. When the airbag is inflated, it pushes the top bar outward, thereby causing the tensioning tile to stretch outward to tighten the inner sleeve of the wire coil.

3. The polymer fiber mechanical property testing impregnation sample preparation equipment as described in claim 2, characterized in that: The frame is equipped with a magnetic powder brake that cooperates with the rotating short shaft.

4. The polymer fiber mechanical property testing impregnation sample preparation equipment as described in claim 3, characterized in that: The magnetic powder brake or servo motor is located on the side of the frame away from the support sleeve, and the rotating short shaft is connected to the frame through a bearing seat located on the side of the frame near the airbag.

5. A polymer fiber mechanical property testing impregnation sample preparation device as described in any one of claims 1-4, characterized in that: The frame is equipped with a collection tray for collecting dripping glue below the tension adjustment mechanism. The collection tray is inclined downward along the direction close to the glue tank and one side of the tray edge is located on the glue tank.

6. The polymer fiber mechanical property testing impregnation sample preparation equipment as described in any one of claims 1-4, characterized in that: The frame is equipped with a scraper above the dip roller to remove excess adhesive.

7. A polymer fiber mechanical property testing impregnation sample preparation device as described in any one of claims 1-4, characterized in that: The frame is equipped with a lifting seat driven by a lifting servo motor, the heating water tank is set on the lifting seat, and the water supply pipe and return pipe are both flexible hoses.

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