Silk spreading roller body applied to aramid fiber non-woven cloth production
By designing an adjustable wire spreading roller structure, the stress angle and contact area of aramid fiber are changed, and the problem of poor aramid weft-free wire spreading in the prior art is solved, and lighter and thinner Weftless fabric improves its bulletproof performance.
Patent Information
- Application Number
- CN202323511499.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2033-12-22
AI Technical Summary
The existing wire spreading roller body structure cannot be adjusted, resulting in the aramid weft-free cloth not being able to achieve the best wire spreading effect under different specifications of fibers and thickness requirements, limiting its bulletproof performance and use range.
A wire spreading roller body composed of a wire spreading roller group, a rotating plate, a connecting shaft, an angle adjuster and an adjustment wheel is designed. Through the unique roller body arrangement structure and angle adjustment function, the force angle of aramid fiber is changed. and contact area, suitable for fiber and products of different specifications.
The change in the surface pressure of the fibers is achieved through angle adjustment and worm gear and worm structure, which effectively solves the problem of fiber bonding being difficult to unfold, and produces a lighter and thinner aramid weft-free cloth, which improves its bulletproof performance.
Smart Images
Figure CN222226774U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of aramid weftless cloth production, in particular to a wire spreading roller body used for aramid weftless cloth production. Background Art
[0002] Aramid bulletproof non-woven fabric has excellent properties such as high temperature resistance, low density, abrasion resistance, impact resistance, and strong cutting toughness. The products are widely used in bulletproof inserts, bulletproof helmets, lightweight bulletproof armor plates, stab-proof and cut-proof clothing linings and special public riot control facilities.
[0003] The surface of ultra-high molecular weight polyethylene fiber is smooth and easy to spread, while the surface of aramid fiber is rough and difficult to spread. Each bundle of aramid fiber is composed of hundreds or even thousands of fine fibers. These filaments are stacked into bundles, which are easy to stick together inside. The surface is rough and not smooth, and it is not easy to spread the fibers. Compared with ultra-high molecular weight polyethylene bulletproof cloth, aramid non-woven cloth is thicker and has a heavier surface density, which is not conducive to improving the bulletproof performance and limits its scope of use. Most of the existing wire spreading rollers adopt a fixed structure and cannot be adjusted. The wire spreading performance is fixed after installation. It cannot achieve the best effect for fibers of different specifications or non-woven cloths with different thickness requirements. Summary of the invention
[0004] In view of the defects in the prior art, the utility model provides a wire spreading roller for the production of aramid non-woven fabric, the purpose of which is to spread the aramid fiber through a unique roller arrangement structure during the movement of the aramid fiber, and to change the force angle and contact area of the aramid fiber by rotating the angle of the wire spreading roller, so as to be suitable for fibers of different specifications and achieve the best wire spreading effect. The applicability of the wire spreading equipment is expanded, and a lighter aramid non-woven fabric is produced, and its anti-ballistic performance is improved.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions: a wire spreading roller body used in the production of aramid non-woven fabric, mainly composed of a wire spreading roller group, a right rotating plate, a right connecting shaft, a left rotating plate, a left connecting shaft, an angle adjuster, and an adjusting wheel. It is characterized in that the wire spreading roller group consists of three roller bodies, namely, a wire spreading roller one, a wire spreading roller two, and a wire spreading roller three. The centers of the three roller bodies are cocircular and are installed between the left rotating plate and the right rotating plate at an interval of 120 degrees. The angle adjuster is connected to the left rotating plate through the left connecting shaft.
[0006] As an improvement of the utility model, the angle adjuster has a worm gear structure inside and has a one-way locking function, and the angle of the wire spreading roller group can be adjusted by an adjusting wheel.
[0007] As an improvement of the utility model, the first wire spreading roller is a regular octagonal roller body, which is a rotating roller, and the second and third wire spreading rollers are round rollers, which are fixed rollers.
[0008] As an improvement of the present utility model, the second and third wire spreading rollers are round rollers with a diameter of 55 mm, and the diameter of the circumscribed circle of the wire spreading roller one is 55 mm.
[0009] As an improvement of the utility model, the distance between the closest points of the roller surfaces of the three rollers of the wire spreading roller group is 4 mm.
[0010] Compared with the prior art, the utility model has the following advantages: the overall technical solution is simple and reasonable in structure, its cost is low, its practicability is strong, and the unique roller arrangement structure is used for spreading the wire. By rotating the angle of the wire spreading roller group, the force angle and contact area of the aramid fiber are changed, so as to be suitable for fibers of different specifications and different types of products, and achieve the best wire spreading effect. The surface pressure of the fiber is constantly changed by rotating the regular octagonal roller, which effectively solves the problem that the aramid filament bundle is difficult to spread due to bonding, makes the aramid weft-free cloth thinner and has a lower surface density, produces a lighter aramid weft-free cloth, and improves its anti-ballistic performance.
[0011] Obviously, according to the above contents of the utility model, in accordance with the common technical knowledge and customary means in this field, without departing from the above basic technical ideas of the utility model, other various forms of modifications, replacements or changes can be made. The above contents of the utility model are not limited to the spreading of aramid fibers, but are also applicable to the spreading of other fibers.
[0012] The following is a further detailed description of the above contents of the utility model through specific implementation methods in the form of embodiments. However, this should not be understood as the scope of the above subject matter of the utility model being limited to the following examples. All technologies realized based on the above contents of the utility model belong to the scope of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the equipment of the utility model;
[0014] Among them: 1. Wire spreading roller one, 2. Wire spreading roller two, 3. Wire spreading roller three, 4. Left rotating plate, 5. Right rotating plate, 6. Left connecting shaft, 7. Right connecting shaft, 8. Left mounting seat, 9. Right mounting seat, 10. Angle adjuster, 11. Adjusting wheel.
[0015] Figure 2 , Figure 3 Schematic diagram of fiber spreading at different angles;
[0016] Among them: 001, fiber bundle, 1, wire spreading roller one, 2, wire spreading roller two, 3, wire spreading roller three. DETAILED DESCRIPTION
[0017] Example:
[0018] A wire spreading roller body used in the production of aramid non-woven fabrics is mainly composed of a wire spreading roller group, a right rotating plate, a right connecting shaft, a left rotating plate, a left connecting shaft, an angle adjuster, and an adjusting wheel. The invention is characterized in that the wire spreading roller group is composed of three roller bodies, namely, a wire spreading roller 1, a wire spreading roller 2, and a wire spreading roller 3. The centers of the three roller bodies are cocircular and are installed between a left rotating plate and a right rotating plate at an interval of 120 degrees. The angle adjuster is connected to the left rotating plate through a left connecting shaft.
[0019] like Figure 1 The wire spreading roller 1, wire spreading roller 2, and wire spreading roller 3 are installed and fixed between the left rotating plate 4 and the right rotating plate 5, wherein the wire spreading roller 1 is a regular octagonal roller body with an circumscribed circle diameter of 55mm, which can rotate freely and has a 2mm fillet. The wire spreading roller 2 and wire spreading roller 3 are round rollers with a diameter of 55mm and are fixed and do not rotate. The left connecting shaft 6 and the right connecting shaft 7 are respectively installed on the left mounting plate 8 and the right mounting plate 9 through bearings. The angle adjuster 10 is fixed on the other side of the left mounting plate, and the internal worm gear is fixed concentrically with the left connecting shaft 6 and rotates together. The internal worm of the angle adjuster 10 is connected to the adjusting wheel 11. By rotating the adjusting wheel 11, the internal worm of the angle adjuster 10 is driven to rotate, and the turbine is adjusted to rotate a certain angle by the rotation of the worm. The wire spreading roller group as a whole follows the turbine to rotate to achieve the purpose of fine-tuning the angle of the wire spreading roller group. According to actual needs, the angle adjustment range is limited to ±30 degrees.
[0020] like Figure 2 As shown, in this embodiment, the wire spreading roller 1 rotates to the top, and the fiber 001 enters from the top of the wire spreading roller 2, passes through the bottom of the wire spreading roller 1, and is led out from the top of the wire spreading roller 3. As shown in the figure, the fiber surface contacts the three wire spreading rollers respectively, among which the roller bodies of the wire spreading roller 2 and the wire spreading roller 3 do not rotate, and the fiber rubs on its surface to spread the wire. The wire spreading roller 1 is a rotating roller, which is driven by the fiber to rotate. When the wire spreading roller 1 rotates, the contact surface between it and the fiber is constantly changing, and the pressure of the roller body on the fiber is constantly changing, especially the pressure at the corners is the largest. In this way, the effect of fiber stripping and flattening is achieved.
[0021] like Figure 3 As shown, it is a schematic diagram of adjusting the wire spreading roller to a certain angle, and Figure 2 Compared with the wire spreading roller group rotating 15 degrees to the left, fiber 001 enters from the top of wire spreading roller 2, passes through the bottom of wire spreading roller 1, and is led out from the top of wire spreading roller 3. As shown in the figure, the fiber only contacts wire spreading roller 1 and wire spreading roller 3, but not wire spreading roller 2. This changes the stress state of the fiber and its wire spreading effect. In this way, it can adapt to the wire spreading needs of aramid of different specifications and different product thicknesses.
[0022] As a preferred solution, in this embodiment, the fiber spreading roller 1 can be designed as an active roller, the rotation speed of which is controlled by a servo motor. By rotating rapidly and using its edges and corners to move the fibers, a better fiber spreading effect can be achieved.
Claims
1. A wire spreading roller body used in the production of aramid non-woven fabric, mainly composed of a wire spreading roller group, a right rotating plate, a right connecting shaft, a left rotating plate, a left connecting shaft, an angle adjuster, and an adjusting wheel, characterized in that: The wire spreading roller group consists of three roller bodies, namely, wire spreading roller one, wire spreading roller two and wire spreading roller three. The three roller bodies have the same center and are installed between the left rotating plate and the right rotating plate at an interval of 120 degrees. The angle adjuster is connected to the left rotating plate through the left connecting shaft.
2. The yarn spreading roller used for producing aramid non-woven fabric according to claim 1, characterized in that: The angle adjuster has a worm gear structure inside, and the angle of the wire spreading roller group is adjusted by an adjusting wheel.
3. The yarn spreading roller used for producing aramid non-woven fabric according to claim 1, characterized in that: The first wire spreading roller is a regular octagonal roller body and is a rotating roller. The second and third wire spreading rollers are round rollers and are fixed rollers.
4. The yarn spreading roller used for producing aramid non-woven fabric according to claim 1, characterized in that: The second and third wire spreading rollers are round rollers with a diameter of 55 mm, and the diameter of the circumscribed circle of the wire spreading roller one is 55 mm.
5. The yarn spreading roller used for producing aramid non-woven fabric according to claim 1, characterized in that: The closest point distance between the roller surfaces of the three rollers of the wire spreading roller group is 4 mm.