Composite gluing mechanism for ultrasonic filament spreading

Abstract

The utility model provides a composite gluing mechanism for ultrasonic filament spreading, which comprises an ultrasonic filament spreading mechanism and a gluing mechanism, the ultrasonic filament spreading mechanism comprises a water tank and an ultrasonic vibration source, deionized water is added in the water tank, the ultrasonic vibration source is fixed at the bottom of the water tank, and a fiber filament bundle enters the water tank for ultrasonic filament spreading after being tensioned by a tensioning device; the gluing mechanism comprises a glue groove and a gluing roller, a water-based adhesive is added into the glue groove, and the bottom of the gluing roller is located in the glue groove; and fiber tows which are spread in the water tank are connected with the top of the gluing roller in a sliding manner through a guide roller device. According to the utility model, ultrasonic filament spreading is adopted, and compared with the traditional mechanical tension filament spreading, the abrasion of fiber filament bundles can be effectively reduced; according to the utility model, filament spreading and gluing are separated, and the continuity of a fiber flow is ensured; gluing is controlled through the speed difference between the fiber tow and the gluing roller, the gluing amount can be flexibly controlled, and abrasion of the fiber tow can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of composite material preparation equipment, in particular to an ultrasonic filament spreading composite gluing mechanism. Background Art

[0002] In the field of organic high-strength and high-modulus fiber composite material manufacturing, fiber tow widening technology is used to improve the interfacial bonding ability between fiber materials and adhesives and to increase the contact area between the fibers and the adhesive.

[0003] The yarn tow widening is mostly done by tension spreading method, which has advantages such as simple equipment, but the width of the widening is relatively limited, and the yarn spreading relies entirely on the extrusion force perpendicular to the yarn tow. The method of controlling the amount of fiber glue is relatively simple, and the scraper damages the fiber performance.

[0004] In addition, tow sizing is currently mostly done by hot melt impregnation. However, in the field of bulletproof composite materials, adhesives are mostly water-based emulsions. If an ultrasonic device is directly added inside the glue tank, the ultrasound will cause the emulsion to break and deteriorate, reducing the impregnation effect. Utility Model Content

[0005] The purpose of the utility model is to provide a composite gluing mechanism for ultrasonic spreading to improve the fiber widening effect during the spreading and gluing process, and to solve the problems of demulsification failure of water-based adhesives and difficulty in controlling fiber gluing.

[0006] According to the purpose of the utility model, the utility model provides a composite gluing mechanism for ultrasonic yarn spreading, including an ultrasonic yarn spreading mechanism and a gluing mechanism, the ultrasonic yarn spreading mechanism including a water tank and an ultrasonic vibration source, deionized water is added to the water tank, the ultrasonic vibration source is fixed to the bottom of the water tank, and the fiber bundle enters the water tank for ultrasonic yarn spreading after being tensioned by a tensioning device; the gluing mechanism includes a glue tank and a glue roller, water-based adhesive is added to the glue tank, and the bottom of the glue roller is located in the glue tank; the fiber bundle that has completed the yarn spreading from the water tank is slidably connected to the top of the glue roller through a guide roller device.

[0007] Furthermore, the ratio of the traveling speed of the fiber bundle to the rotation speed of the glue roller is 10:10-1.

[0008] Furthermore, a first guide roller and a second guide roller are provided at the bottom of the water tank, the water level of the deionized water completely submerges the first guide roller and the second guide roller, and the fiber bundles are wound out from the bottom of the first guide roller and the second guide roller in sequence.

[0009] Furthermore, a first tensioning wheel and a second tensioning wheel are provided on the front side of the water tank. After unwinding, the fiber tow passes through the first tensioning wheel and the second tensioning wheel in turn, and is wound around the first guide roller and the second guide roller to enter the water tank.

[0010] Furthermore, the glue roller is connected to a driving motor.

[0011] Furthermore, the liquid level of the water-based adhesive is between one-third and two-thirds of the adhesive tank.

[0012] Furthermore, the rotation direction of the glue roller is consistent with the traveling direction of the fiber bundle.

[0013] Furthermore, a third tensioning wheel is provided above the glue tank and the water tank, and the fiber bundle passes through the third tensioning wheel and enters the top of the glue roller after leaving the second guide roller.

[0014] Furthermore, a third guide roller and a fourth guide roller are respectively provided on both sides of the top of the upper glue roller, and the lower sections of the third guide roller and the fourth guide roller are lower than the upper section of the upper glue roller.

[0015] Furthermore, after the fiber bundle leaves the glue roller and the fourth guide roller, it enters the rear winding mechanism.

[0016] The technical solution of the utility model adopts ultrasonic yarn spreading, which can effectively reduce the wear of the fiber bundle compared with the traditional mechanical tension yarn spreading; the utility model separates the yarn spreading and gluing, and ensures the continuity of the fiber process; the utility model controls the gluing through the speed difference between the fiber bundle and the gluing roller, can flexibly control the gluing amount, and can effectively reduce the wear of the fiber bundle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the box and internal structure of an embodiment of the utility model;

[0020] In the figure: 1. First tensioning pulley; 2. Fiber tow; 3. Second tensioning pulley; 4. Third tensioning pulley; 5. Third guide roller; 6. Fourth guide roller; 7. First guide roller; 8. Ultrasonic vibration source; 9. Deionized water; 10. Second guide roller; 11. Glue tank; 12. Glue roller; 13. Water-based adhesive; 14. Water tank. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0024] Example 1

[0025] like Figure 1-Figure 2 As shown:

[0026] A composite gluing mechanism for ultrasonic yarn spreading comprises an ultrasonic yarn spreading mechanism and a gluing mechanism, wherein:

[0027] The ultrasonic yarn spreading mechanism includes a first tensioning wheel 1, a second tensioning wheel 3, a first guide roller 7, a second guide roller 10, a water tank 14, and an ultrasonic vibration source 8. Deionized water 9 must be added to the water tank 14 during use, and the water level must completely submerge the first and second guide rollers 7 and 10. The ultrasonic vibration source 8 is mounted at the bottom of the water tank 14. After unwinding, the fiber tow 2 passes through the first tensioning wheel 1, the second tensioning wheel 3, the first guide roller 7, and the second guide roller 10 in sequence, entering the water tank 14. The fiber tow 2 then passes through the first and second guide rollers 7 and 10 at the bottom of the water tank 14. After ultrasonically spreading the fiber in the deionized water 9 through the ultrasonic vibration source 8, it exits the water tank 14 and enters the gluing mechanism at the rear. In this embodiment, the first tensioning wheel 1, the second tensioning wheel 3, the first guide roller 7, and the second guide roller 10 provide tension to assist in yarn spreading.

[0028] The gluing mechanism includes a third tensioning wheel 4, a third guide roller 5, a gluing roller 12, a glue groove 11 and a fourth guide roller 6. When in use, a certain amount of water-based adhesive 13 needs to be added to the glue groove 11 to keep the liquid level at one-third to two-thirds of the glue groove 11. The speed of the gluing roller 12 is controlled by a motor, and the direction of rotation is consistent with the direction of travel of the fiber bundle 2. The gluing process is carried out by rotating the gluing roller 12 to bring the glue from the glue groove 11 into contact with the fiber bundle 2. The amount of gluing on the fiber bundle 2 can be controlled by controlling the ratio of the speed of the gluing roller 12 to the travel speed of the fiber bundle 2. In this embodiment, the lower cross-section of the two third guide rollers 5 and the fourth guide roller 6 needs to be lower than the upper cross-section of the gluing roller 12 to ensure that the fiber bundle 2 can be tightly attached to the gluing roller 12 when passing through, thereby ensuring the gluing effect. After leaving the gluing roller 12 and the fourth guide roller 6, the fiber bundle 2 enters the rear winding mechanism.

[0029] The device of this utility model mainly performs the functions of yarn spreading and gluing, while subsequent fiber production work such as fiber unwinding and winding is performed by other devices. This utility model provides a yarn spreading mechanism based on ultrasonic vibration and a sizing mechanism based on speed difference, achieving uniform and effective yarn spreading and sizing, and reducing yarn damage.

[0030] In this embodiment, the fiber tow 2 passes through a tensioning wheel and is immersed in a water tank 14 containing deionized water 9. After exiting the water tank 14, the fiber tow 2 passes through a guide roller and is bonded to the adhesive roller 12. After leaving the adhesive roller 12, the fiber tow 2 enters the rear winding mechanism. The ultrasonic vibration source 8 in the water tank 14 is turned on, and the adhesive roller 12 is turned on. The ratio of the fiber tow 2's travel speed to the adhesive roller's rotational speed is set to 10:10-1.

[0031] This new method uses ultrasonic spreading, which effectively reduces fiber wear compared to traditional mechanical tension spreading. Conventional gluing is mostly hot-melt or solvent-based, without considering the destructive effects of ultrasound on the emulsion system. This new method separates the spreading and gluing process, ensuring the continuity of the fiber process. Conventional glue tanks use fixed scrapers to directly apply excess glue, making it difficult to flexibly control the amount of glue applied, and can cause wear to the fiber bundles over time. This new method controls gluing by using the speed difference between the fiber bundle and the gluing roller, allowing for flexible control of the amount of glue applied and effectively reducing fiber wear.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A composite gluing mechanism for ultrasonic spreading, characterized in that: It includes an ultrasonic yarn spreading mechanism and a gluing mechanism. The ultrasonic yarn spreading mechanism includes a water tank and an ultrasonic vibration source. Deionized water is added to the water tank, and the ultrasonic vibration source is fixed to the bottom of the water tank. The fiber bundle is tensioned by a tensioning device and then enters the water tank for ultrasonic yarn spreading. The gluing mechanism includes a glue tank and a glue roller. Water-based adhesive is added to the glue tank, and the bottom of the glue roller is located in the glue tank. The fiber bundle that has completed yarn spreading in the water tank is slidably connected to the top of the glue roller through a guide roller device.

2. The composite gluing mechanism for ultrasonic filament spreading according to claim 1, characterized in that: The ratio of the traveling speed of the fiber bundle to the rotation speed of the glue roller is 10:10-1.

3. The composite gluing mechanism for ultrasonic filament spreading according to claim 1, characterized in that: A first guide roller and a second guide roller are provided at the bottom of the water tank. The water level of the deionized water completely submerges the first guide roller and the second guide roller. The fiber bundles are wound out from the bottom of the first guide roller and the second guide roller in sequence.

4. The composite gluing mechanism for ultrasonic filament spreading according to claim 3, characterized in that: A first tensioning wheel and a second tensioning wheel are provided on the front side of the water tank. After unwinding, the fiber tow passes through the first tensioning wheel and the second tensioning wheel in sequence, and is wound around the first guide roller and the second guide roller to enter the water tank.

5. The composite gluing mechanism for ultrasonic filament spreading according to claim 1, characterized in that: The glue roller is connected to the driving motor.

6. The composite gluing mechanism for ultrasonic filament spreading according to claim 1, characterized in that: The liquid level of the water-based adhesive is between one-third and two-thirds of the adhesive tank.

7. The composite gluing mechanism for ultrasonic filament spreading according to claim 1, characterized in that: The rotation direction of the glue roller is consistent with the traveling direction of the fiber bundle.

8. The composite gluing mechanism for ultrasonic filament spreading according to claim 4, characterized in that: A third tensioning wheel is provided above the glue tank and the water tank. After leaving the second guide roller, the fiber tow passes around the third tensioning wheel and enters the top of the glue roller.

9. The composite gluing mechanism for ultrasonic filament spreading according to claim 8, characterized in that: A third guide roller and a fourth guide roller are respectively provided on both sides of the top of the upper glue roller. The lower sections of the third guide roller and the fourth guide roller are lower than the upper section of the upper glue roller.

10. The composite gluing mechanism for ultrasonic yarn spreading according to claim 9, characterized in that: After leaving the glue roller and the fourth guide roller, the fiber bundle enters the rear winding mechanism.

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