Production system of bulletproof helmet

Abstract

The invention belongs to the field of helmet production, and discloses a bulletproof helmet production system. Comprising a helmet mold, a wire winding nozzle and a feeding device, the helmet mold is rotationally arranged around the axis extending in the first direction, and the helmet mold rotates to be used for winding fibers; the wire winding nozzle is movably arranged in the first direction, and a discharging opening of the wire winding nozzle corresponds to the helmet mold and is used for conveying fiber wires to the helmet mold. The feeding device is used for providing fiber filaments to the filament winding nozzle. According to the bulletproof helmet production system, the helmet mold starts to rotate, the filament winding nozzle moves in the first direction at the fixed speed, fiber filaments are wound on the helmet mold step by step, it can be guaranteed that the thicknesses of all positions on the helmet mold are uniform, overall fiber filament winding is completed firstly, and the fiber filaments are cut off at the edge of a helmet; and the whole cellosilk on the helmet is kept in a long fiber state, so that the strength of the formed helmet is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of helmet production, and in particular to a production system for a bulletproof helmet. Background Art

[0002] At present, the main production process of bulletproof helmets requires cutting high-strength fiber fabrics, then folding and cold pressing them onto helmet blanks for initial shaping. However, in the prior art, since high-strength fiber fabrics need to be cut, long fibers will be cut off, reducing strength, and the short fibers formed by cutting will reduce the dispersion and absorption of impact energy. At the same time, shaping through a multi-layer folding process will cause uneven folding thickness of high-strength fiber fabrics. After the molding is completed, the degree of compression of various parts of the helmet varies greatly, and the absorption and consumption capacity of bullet kinetic energy varies greatly at different points.

[0003] Therefore, in order to ensure that the weak points can play a bulletproof protection role, it is necessary to increase the number of stacking layers of high-strength fiber fabrics on the helmet, increase the weight of the helmet, and require multiple stacking and cold pressing; this leads to an increase in the weight of the helmet, and greater production costs and time. Summary of the invention

[0004] The main purpose of the present invention is to provide a production system for bulletproof helmets, aiming to solve the problem of insufficient strength of helmets produced by traditional processes.

[0005] To achieve the above object, the present invention provides a production system for a bulletproof helmet, comprising:

[0006] A helmet mold, wherein the helmet mold is rotatably arranged around an axis extending along a first direction, and the helmet mold is rotated for fiber filaments to be wound;

[0007] a wire winding nozzle, movably arranged along the first direction, wherein a discharge port of the wire winding nozzle is arranged corresponding to the helmet mold, and is used for conveying fiber filaments to the helmet mold; and

[0008] A feeding device is used for providing fiber filaments to the winding nozzle.

[0009] Optionally, the helmet mold includes two half-helmet molds, and the openings of the two half-helmet molds are arranged opposite to each other and symmetrically along the axis.

[0010] Optionally, a plurality of the wire winding nozzles are provided, and the plurality of wire winding nozzles are arranged at intervals in the circumferential direction around the axis.

[0011] Optionally, the feeding device includes a fiber reel, and the limiting reel is used to wind the fiber filaments.

[0012] Optionally, the production system of the bulletproof helmet also includes a glue tank, which is arranged on the fiber filament conveying path between the wire winding nozzle and the feeding device, and is used to apply glue on the fiber filament.

[0013] Optionally, the production system of the bulletproof helmet further includes a rotating shaft, the rotating shaft is extended along the first direction, and the helmet mold is arranged on the rotating shaft.

[0014] Optionally, the production system of the bulletproof helmet also includes long fiber filaments, which are arranged in the feeding device, used to be passed through the wire winding nozzle, and fixedly wound on the helmet mold.

[0015] Optionally, the material of the long fiber filaments includes any one of ultra-high molecular weight polyethylene fiber, aramid fiber and carbon fiber.

[0016] Optionally, the winding direction of the long fiber filaments on the helmet mold is set at an angle to the first direction.

[0017] Optionally, the long fiber filaments are wound on the helmet mold in a grid.

[0018] The present invention provides a production system for a bulletproof helmet, wherein the helmet mold can rotate around an axis in the first direction, and fiber filaments can be wound on the helmet mold by the rotation of the helmet mold. Corresponding to the helmet mold, the feeding device and the wire winding nozzle are provided, wherein the wire winding nozzle is movably arranged along the first direction. During production, the fiber filaments are first drawn out from the wire winding nozzle and attached to the helmet mold, and then the helmet mold starts to rotate, and the wire winding nozzle moves along the first direction at a fixed rate, so that the fiber filaments are gradually wound on the helmet mold, which can ensure that the thickness of each part on the helmet mold is uniform, so as to ensure the uniformity of the strength of the helmet. At the same time, the fiber filaments are not cut first, but the overall fiber filament winding is completed first, and the fiber filaments are cut at the edge of the helmet, so that the fiber filaments on the helmet remain in a long fiber state as a whole, thereby ensuring the strength of the formed helmet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of a production system for a bulletproof helmet provided by an embodiment of the present invention.

[0020] Description of Figure Numbers:

[0021] 100. Production system of bulletproof helmet; 1. Helmet mold; 11. Half helmet mold; 2. Wire winding nozzle; 3. Feeding device; 4. Glue tank; 5. Rotating axis.

[0022] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0026] At present, the main production process of bulletproof helmets requires cutting high-strength fiber fabrics, then folding and cold pressing them onto helmet blanks for initial shaping. However, in the prior art, since high-strength fiber fabrics need to be cut, long fibers will be cut off, reducing strength, and the short fibers formed by cutting will reduce the dispersion and absorption of impact energy. At the same time, shaping through a multi-layer folding process will cause uneven folding thickness of high-strength fiber fabrics. After the molding is completed, the degree of compression of various parts of the helmet varies greatly, and the absorption and consumption capacity of bullet kinetic energy varies greatly at different points.

[0027] Therefore, in order to ensure that the weak points can play a bulletproof protection role, it is necessary to increase the number of stacking layers of high-strength fiber fabrics on the helmet, increase the weight of the helmet, and require multiple stacking and cold pressing; this leads to an increase in the weight of the helmet, and greater production costs and time.

[0028] See also Figure 1The present invention provides a production system 100 for a bulletproof helmet, comprising a helmet mold 1, a wire winding nozzle 2 and a feeding device 3; the helmet mold 1 is rotatably arranged around an axis extending along a first direction, and the helmet mold 1 is rotated for fiber filament winding; the wire winding nozzle 2 is movably arranged along the first direction, and the discharge port of the wire winding nozzle 2 is arranged corresponding to the helmet mold, so as to convey fiber filament to the helmet mold 1; the feeding device 3 is used to provide fiber filament to the wire winding nozzle 2.

[0029] The present invention provides a production system 100 for a bulletproof helmet, wherein the helmet mold 1 can rotate around an axis in the first direction, and fiber filaments can be wound on the helmet mold 1 by the rotation of the helmet mold 1. Corresponding to the helmet mold 1, a feeding device 3 and a wire winding nozzle 2 are provided, wherein the wire winding nozzle 2 is movably arranged along the first direction. During production, the fiber filaments are first drawn out from the wire winding nozzle 2 and attached to the helmet mold 1, and then the helmet mold 1 starts to rotate, and the wire winding nozzle 2 moves along the first direction at a fixed rate, so that the fiber filaments are gradually wound on the helmet mold 1, which can ensure that the thickness of each part on the helmet mold 1 is uniform, so as to ensure the uniformity of the strength of the helmet. At the same time, the fiber filaments are not cut first, but the overall fiber filament winding is completed first, and the fiber filaments are cut at the edge of the helmet, so that the fiber filaments on the helmet as a whole are kept in a long fiber state, thereby ensuring the strength of the formed helmet.

[0030] It should be noted that, since the fiber filaments need to be cut, a part of the fiber filaments will be wasted. In order to maximize the utilization rate of the fiber filaments, the helmet mold 1 includes a plurality of half-helmet molds 11, wherein the half-helmet mold 11 is a general helmet shape, which is not specifically limited here. The plurality of half-helmet molds 11 are surrounded, and the openings are arranged relatively, so that the formed helmet mold 1 is arranged in a roller shape, and the helmet mold 1 rotates around its central axis extending along the first direction, and the fiber filaments can be wound on the plurality of helmet molds 1 at the same time. Furthermore, the first direction can be a horizontal direction, or an up-and-down direction, etc., which is not limited by the present invention.

[0031] Specifically, in this embodiment, the helmet mold 1 includes two half-helmet molds 11, and the openings of the two half-helmet molds 11 are arranged opposite to each other and symmetrically along the axis. In this embodiment, the two half-helmet molds 11 can maximize the utilization rate of the fiber filaments, and at the same time facilitate the winding and cutting of the fiber filaments, thereby improving the production cycle.

[0032] Furthermore, a plurality of the wire winding nozzles 2 are provided, and the plurality of the wire winding nozzles 2 are arranged at intervals around the axis. In this embodiment, through the plurality of the wire winding nozzles 2, the fiber filaments in different directions and angles can be wound on the helmet mold 1, so as to form a winding method such as a grid, warp and weft interlacing, and improve the strength of the helmet.

[0033] On the other hand, the feeding device 3 includes a fiber reel, and the limiting reel is used to wind the fiber filament. In this embodiment, the fiber reel is used for feeding, and the structure is simple and reliable.

[0034] It should be noted that, in order to facilitate the adhesion of the fiber filaments to the helmet mold 1, glue needs to be applied to the fiber filaments. There are many ways to apply the glue, such as spraying.

[0035] In this embodiment, the production system 100 of the bulletproof helmet further includes a glue tank 4, which is disposed on the fiber conveying path between the winding nozzle 2 and the feeding device 3, and is used to apply glue on the fiber. During the conveying process, the fiber passes through the glue tank 4, and glue is applied on the fiber by conveying, and the structure is simple and reliable.

[0036] In addition, in order to facilitate the transportation of the fiber filaments, the bulletproof helmet production system 100 also includes a plurality of conveying rollers for winding the fiber filaments so as to control the conveying path of the fiber filaments.

[0037] On the other hand, the production system 100 of the bulletproof helmet further comprises a rotating shaft 5, wherein the rotating shaft 5 is extended along the first direction, and the helmet mold 1 is arranged on the rotating shaft 5, so as to facilitate the rotation of the helmet mold 1.

[0038] It should be noted that the rotating shaft 5 may be an output shaft of a motor system, and as long as it can generate rotation, no specific limitation is made here.

[0039] On the other hand, the bulletproof helmet production system 100 further comprises long fiber filaments, which are arranged in the feeding device 3, and are used to be passed through the winding nozzle and fixedly wound on the helmet mold 1. In this embodiment, the strength of the formed helmet is improved by the long fiber filaments.

[0040] Specifically, the material of the long fiber filaments includes any one of ultra-high molecular weight polyethylene fiber, aramid fiber and carbon fiber.

[0041] In addition, in one embodiment of the present invention, the winding direction of the long fiber filaments on the helmet mold 1 is set at an angle to the first direction. In this embodiment, the winding of the fiber filaments is facilitated by the angle setting.

[0042] It should be noted that, in this embodiment, the helmet mold 1 includes a half-helmet mold 11, and the axes of the long fiber filaments and the half-helmet mold 11 are also arranged at an angle to improve the strength of the helmet.

[0043] On the other hand, the long fiber filaments are wound around the helmet mold in a grid to improve the strength of the helmet.

[0044] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A production system for bulletproof helmets, characterized in that: include: A helmet mold, wherein the helmet mold is rotatably arranged around an axis extending along a first direction, and the helmet mold is rotated for fiber filaments to be wound; A wire winding nozzle is movably arranged along the first direction, and a discharge port of the wire winding nozzle is arranged corresponding to the helmet mold, so as to convey fiber filaments to the helmet mold; as well as, A feeding device is used for providing fiber filaments to the winding nozzle.

2. The production system of bulletproof helmets according to claim 1, characterized in that: The helmet mold comprises two half-helmet molds, and the openings of the two half-helmet molds are arranged opposite to each other and symmetrically along the axis.

3. The production system of bulletproof helmet according to claim 1, characterized in that: A plurality of the wire winding nozzles are provided, and the plurality of the wire winding nozzles are arranged at intervals in the circumferential direction around the axis.

4. The production system of bulletproof helmet according to claim 1, characterized in that: The feeding device comprises a fiber reel, and the limiting reel is used for winding the fiber filaments.

5. The production system of bulletproof helmet according to claim 1, characterized in that: The production system of the bulletproof helmet also includes a glue tank, which is arranged on the fiber filament conveying path between the wire winding nozzle and the feeding device and is used for coating glue on the fiber filament.

6. The production system of bulletproof helmet according to claim 1, characterized in that: The production system of the bulletproof helmet also includes a rotating shaft, which is extended along the first direction, and the helmet mold is arranged on the rotating shaft.

7. The production system of bulletproof helmet according to claim 1, characterized in that: The production system of the bulletproof helmet also includes long fiber yarns, which are arranged in the feeding device, used to be passed through the winding nozzle, and fixedly wound on the helmet mold.

8. The production system of the bulletproof helmet according to claim 7, characterized in that: The material of the long fiber filaments includes any one of ultra-high molecular weight polyethylene fiber, aramid fiber and carbon fiber.

9. The production system of bulletproof helmet according to claim 7, characterized in that: The winding direction of the long fiber filaments on the helmet mold is arranged at an angle to the first direction.

10. The production system of the bulletproof helmet according to claim 7, characterized in that: The long fiber filaments are wound on the helmet mold in a grid-like shape.

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