CN113618819A - Cutting template of helmet body and method for preparing helmet body - Google Patents

Abstract

The utility model provides a cut-parts template of the helmet body and method of preparation helmet body, this cut-parts template includes at least one die, the die uses its center to set up a length for 1/3 circle diameter's cutting groove as every interval 60 of axle center, the cutting groove by the edge orientation of die the central direction of die extends, each cutting groove makes the die forms six skirt pieces, has seted up an intercommunication along every skirt piece of clockwise and the adjacent side of next skirt piece the breach in cutting groove makes but the die screw-tupe fits air pocket mould surface curvature. The cutting piece template disclosed by the invention is ingenious in design and reasonable in structure, the processing technology of the helmet body of the helmet can be simplified to the greatest extent, the efficiency is improved, the reject ratio of the product is reduced, the protective performance of the helmet can be effectively improved, and the cutting piece template is suitable for popularization and use.

Description

Cutting template of helmet body and method for preparing helmet body

Technical Field

The invention relates to the technical field of helmets, in particular to a cutting template of a helmet body and a method for preparing the helmet body.

Background

In the course of working of flight helmet body, in order to guarantee the complicated camber of material adaptation silica gel air pocket mould surface, generally need to press the template shape of cut-parts with raw and other materials, cut into a fritter, attach on silica gel air pocket mould, so that the material fits the appearance camber of silica gel air pocket mould, guarantee that the material pastes and applies levelly and smoothly, accomplish the back, put into metal forming die with silica gel air pocket mould, and keep warm to the moulded die heating, aerify the pressurize to silica gel air pocket mould, under temperature and pressure, make the material of attaching on silica gel air pocket mould, the bonding solidification shaping, accomplish helmet body processing.

General helmet body shop layer cut-parts template all designs into the polygon for the complicated camber on adaptation silica gel air bag mould surface, and the quantity generally has about 20 ~ 28, and the material cut-parts that cut out according to such cut-parts template are attached on silica gel air bag mould through the manual piece by piece of personnel. In order to guarantee the integrity and the integral mechanical property of the helmet body structure, the edges of each polygonal cut piece and the adjacent cut pieces are overlapped when the polygonal cut pieces are attached, and the polygonal cut pieces and the adjacent cut pieces are generally required to be crossed and covered by 5-8 mm. Every helmet, dozens of cut pieces correspond to hundreds of overlapping and edge changing, so that very strict requirements are put forward for helmet laying personnel and processes, the overlapping amount of the edges of the two cut pieces is small, the helmet body is lack of materials, the overlapping amount of the edges of the two cut pieces is too large, and hundreds of edges are overlapped, so that the weight of the helmet body is increased rapidly. The existing processing technology of the helmet has the disadvantages of large workload and high rejection rate of finished products.

Disclosure of Invention

In view of the above situation, it is necessary to provide a template for cutting pieces of a helmet body and a method for manufacturing the helmet body, which are directed to the problems of the existing helmet that the processing workload is large and the rejection rate of the finished product is high.

The utility model provides a cut-parts template of helmet body, includes at least one die, the die uses its center to set up a length for 1/3 circle diameter's cutting groove for every interval 60 of axle center, cutting groove by the edge orientation of die the central direction of die extends, each cutting groove makes the die forms six skirt pieces, has seted up an intercommunication along every skirt piece of clockwise and the adjacent side of next skirt piece the breach in cutting groove makes but die spiral type fitting air pocket mould surface curvature.

Further, the cutting piece template is characterized in that the width of the cutting groove is 2-3 mm.

Further, above-mentioned cut-parts template, wherein two are relative be provided with counterpoint mark on the skirt respectively, counterpoint mark is used for counterpointing with silica gel air pocket mould forehead central line.

Further, the cut-parts template comprises three templates which are respectively a first template, a second template and a third template, wherein the alignment mark of the second template rotates clockwise 15-20 degrees relative to the alignment mark on the first template, and the alignment mark on the third template rotates clockwise 15-20 degrees relative to the alignment mark on the second template.

Further, above-mentioned cut-parts template, wherein, the size of first diaphragm, second diaphragm and third diaphragm increases in proper order.

Further, in the above cut-parts template, the alignment mark is 20mm long, and an isosceles triangle with an included angle of 30 degrees at the top points to an arrow.

The invention also provides a method for preparing a helmet body based on any one of the cutting piece templates, which is characterized by comprising the following steps:

s1, cutting the raw materials according to the cutting piece template to obtain a helmet body cutting piece, wherein the helmet body cutting piece is provided with six patches corresponding to the six skirts respectively, the six patches are a first patch, a second patch, a third patch, a fourth patch, a fifth patch and a sixth patch in sequence according to a clockwise arrangement direction, and the first patch and the fourth patch are provided with the alignment marks;

s2, overlapping the center of the cut piece of the helmet body with the middle point of the top of the silica gel air bag mold;

s3, the alignment mark on the first patch is superposed with the forehead midline of the silica gel air bag die, the alignment mark on the fourth patch is superposed with the hindbrain midline of the silica gel air bag die, and meanwhile, the whole helmet body cut piece is placed on the silica gel air bag die in a left-right centering manner;

s4, attaching the first patch to the surface of the air bag die smoothly without folds along the surface curve of the silica gel air bag die;

s5, smoothly fitting and lapping the left edge of the sixth patch on the first patch along the surface curve of the silica gel air bag die, and covering the edge of the sixth patch on the positioning groove of the first patch;

and S6, sequentially lapping the fifth patch on the sixth patch, lapping the fourth patch on the fifth patch, lapping the third patch on the fourth patch, lapping the second patch on the third patch and lapping the first patch on the second patch according to the methods of the steps S4 and S5.

The cutting piece module of the helmet body changes the original helmet body processing mode of combining and lapping dozens of cutting pieces into an integral helmet body spreading cutting piece template with six skirt pieces. The structure of integral type has avoided deciding too much to the material, has guaranteed the excellent mechanical properties of the helmet body, and when the helmet received the impact of carrying outside, the structure of integral type has more efficient to reach efficiency to the shock wave, can reduce the injury of assaulting to the helmet person of wearing. The cutting piece template disclosed by the invention is ingenious in design and reasonable in structure, the processing technology of the helmet body of the helmet can be simplified to the greatest extent, the efficiency is improved, the reject ratio of the product is reduced, the protective performance of the helmet can be effectively improved, and the cutting piece template is suitable for popularization and use.

Drawings

FIG. 1 is a schematic structural view of one of the matrix sheets of the panel template in a first embodiment of the present invention;

fig. 2 is a schematic structural view of a silica gel air bag mold.

Description of the main elements

A template 10, a cutting groove 11; skirt pieces, 12; a notch, 13; alignment mark, 14.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, this embodiment is provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The existing helmet body laying mode needs dozens of cut-part templates to be combined and lapped mutually, hundreds of lapping edges lead to extremely complex process, increase redundant weight, have high requirement on the proficiency of personnel, low efficiency and high rejection rate, and dozens of polygonal cutting templates with inconsistent shapes can generate great material waste when cutting materials. Aiming at the defects of the prior technical scheme, the invention changes the original helmet body laying mode, provides the integrated petal-shaped helmet body laying cut piece template and the product process thereof, each cut piece template only has six lap joints, the operation process is greatly simplified, the invalid material weight can be removed, the processing efficiency is improved, the rejection rate is reduced, the raw materials are saved, each cut piece of material is tightly lapped and combined under the spiral lapping of six skirt pieces, and the helmet body mechanical property is excellent.

The first embodiment of the invention provides a cutting piece template of a helmet body, which comprises at least one template 10, wherein the template 10 is provided with a cutting groove 11 with the length of 1/3 circles at every 60 degrees by taking the center as an axis as shown in figure 1. This tailor groove 11 is extended towards the central direction of template by the edge of template 10, makes six skirt pieces 12 of formation on the template 10 through each tailorring groove 11, offers a breach 13 that the groove 11 was tailor in intercommunication along every skirt piece 12 of clockwise direction and the adjacent side of next skirt piece 12 for when this template 10 attached on the silica gel air bag mould, but spiral type fit air bag mould surface curvature realizes leveling attached.

The die sheet 10 is approximately circular, and is provided with a cutting groove 11 with the length of 1/3 circles at an interval of 60 degrees by taking the center of a circle as an axis, so as to generate six skirt sheets 12. Each skirt piece 12 is arc quadrangle, is similar to petal type, can make the material on silica gel air pocket mould, and the screw-tupe fits air pocket mould surface curvature, realizes the level and smooth attached of material.

Further, the width of the cutting groove 11 is 2-3mm for positioning the skirt pieces 12 which are overlapped with each other.

Furthermore, the edges of the two skirt pieces which coincide with the center line of the forehead and the hindbrain of the silica gel air bag mold are designed with alignment marks 14, the alignment marks 14 are, for example, isosceles triangle directional arrows with the side length of 20mm and the top included angle of 30 degrees, the two directional arrows are consistent in direction and are connected at the head, and the directional arrows are used for positioning the positions on the silica gel air bag mold during layering.

Further, the cutting piece template comprises three mould pieces 10, and the three mould pieces 10 are basically identical in structure, namely, each mould piece comprises 6 arc-shaped quadrilateral skirt pieces. Except that the sizes of the first template, the second template and the third template are sequentially increased in the laying direction from bottom to top, the alignment mark on the second template is clockwise rotated by 15-20 degrees relative to the alignment mark on the first template, and the alignment mark on the third template is clockwise rotated by 15-20 degrees relative to the alignment mark on the second template.

It can be understood that the helmet body with different requirements needs different numbers of the mould pieces, generally a helmet needs 3-5 mould pieces, the diameter of each mould piece is gradually increased layer by layer according to different laying positions, and the diameter of the latter layer is generally increased by 10-20mm compared with that of the former layer. The alignment mark on the next layer of the matrix is rotated 15-20 degrees clockwise relative to the alignment mark on the previous layer of the matrix. After each skirt piece overlap joint is adapted to, prevent that multilayer overlap joint line from being in unified position, causing the too thick problem of local thickness.

The cut piece template comprises three pieces of templates, the three pieces of templates form a group, one or more groups of cut piece templates can be selected according to the technical requirements of different helmets, and the cut piece templates are combined and paved to realize a very simple and convenient modularization process combination scheme.

The cutting piece module of the helmet body in the embodiment changes the original processing mode of the helmet body with dozens of cutting pieces combined and overlapped into the helmet body spreading cutting piece template with the integrated type and six skirt pieces. The structure of integral type has avoided deciding too much to the material, has guaranteed the excellent mechanical properties of the helmet body, and when the helmet received the impact of carrying outside, the structure of integral type has more efficient to reach efficiency to the shock wave, can reduce the injury of assaulting to the helmet person of wearing. The cut-parts template in this embodiment design benefit, it is rational in infrastructure, but furthest's simplification helmet body processing technology, raise the efficiency, reduce the product defective rate to can effectively promote the barrier propterty of helmet, be fit for using widely.

The second embodiment of the invention also provides a method for preparing the helmet body, which depends on the cut-parts template in any embodiment, in the actual production and processing, the raw material for preparing the helmet body is cut by taking the template of the cut-parts template as the template to obtain the cut pieces of the helmet body, and then the cut pieces of the helmet body are laid on the silica gel air bag mold shown in figure 2. Specifically, the helmet body preparation method comprises the following steps:

s1, cutting the raw materials according to the cutting piece template to obtain a helmet body cutting piece, wherein the helmet body cutting piece is provided with six patches corresponding to the six skirts respectively, the six patches are a first patch, a second patch, a third patch, a fourth patch, a fifth patch and a sixth patch in sequence according to a clockwise arrangement direction, and alignment marks are arranged on the first patch and the fourth patch respectively;

s2, overlapping the center of the cut piece of the helmet body with the middle point of the top of the silica gel air bag mold;

s3, the alignment mark on the first patch is superposed with the forehead midline of the silica gel air bag die, the alignment mark on the fourth patch is superposed with the hindbrain midline of the silica gel air bag die, and meanwhile, the whole helmet body cut piece is placed on the silica gel air bag die in a left-right centering manner;

s4, attaching the first patch to the surface of the air bag die smoothly without folds along the surface curve of the silica gel air bag die;

s5, smoothly fitting and lapping the left edge of the sixth patch on the first patch along the surface curve of the silica gel air bag die, covering the positioning groove of the first patch with the edge, and smoothly attaching the sixth patch on the silica gel air bag die without folds;

and S6, sequentially lapping the fifth patch on the sixth patch, lapping the fourth patch on the fifth patch, lapping the third patch on the fourth patch, lapping the second patch on the third patch and lapping the first patch on the second patch according to the methods of the steps S4 and S5.

When the method is specifically implemented, one cutting piece template comprises three matrixes with different sizes, and raw materials are collected according to the three matrixes respectively to obtain three helmet body cutting pieces. The process completes the laying of one of the helmet body cut pieces, and the laying mode of the upper layer of helmet body cut piece is repeated for the lower layer of helmet body cut piece. All skirt pieces of the helmet body cut-parts all present the spiral type overlap joint, and the left side edge overlap joint of each paster is to the groove of tailorring department of last piece paster to cover part groove of tailorring.

For the helmet body cut-parts laid on the first layer, the alignment marks of the helmet body cut-parts laid on the second layer deflect 15-20 degrees clockwise relative to the alignment marks of the helmet body cut-parts laid on the first layer, so that the second layer of helmet body cut-parts are ensured, and when the second layer of helmet body cut-parts are laid on a silica gel air bag die, the formed overlapping edges cannot be located at the same position with the overlapping edges of the first layer of helmet body cut-parts, so that the local thickness of the helmet body is prevented from being too thick. The alignment mark of the helmet body cut piece laid on the third layer is also deflected by 15-20 degrees clockwise relative to the alignment mark of the helmet body cut piece laid on the second layer.

Three helmet body cut pieces obtained by cutting raw materials by using a cut piece template are a group, the helmet bodies with different requirements can be selected according to needs, and the laying of the helmet body can be completed by selecting one or more groups of helmet body cut pieces. It will be appreciated that the next set of helmet body panels is larger in size than the previous set of helmet body panels, and the manner of laying the panels of the previous set is repeated.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (7)

1. The utility model provides a cut-parts template of helmet body, its characterized in that includes at least one die, the die uses its center to set up a length for 1/3 circle diameter's cutting groove as every interval 60 of axle center, cutting groove by the edge orientation of die the central direction of die extends, each cutting groove makes the die forms six skirt pieces, has seted up a intercommunication along every skirt piece of clockwise and the adjacent side of next skirt piece the breach in cutting groove makes but die spiral type fit air pocket mould surface curvature.

2. The panel template of claim 1, wherein the width of the cut groove is 2-3 mm.

3. The template of claim 1, wherein two opposite skirts are respectively provided with alignment marks, and the alignment marks are used for aligning with the forehead midline of the silicone air bag module.

4. The cut segment template of claim 3, wherein the cut segment template comprises three of the first, second and third cut segments, the alignment mark on the second cut segment is rotated clockwise 15 ° -20 ° relative to the alignment mark on the first cut segment, and the alignment mark on the third cut segment is rotated clockwise 15 ° -20 ° relative to the alignment mark on the second cut segment.

5. The panel template of claim 4, wherein the first, second, and third tiles increase in size in sequence.

6. The template of claim 3, wherein the alignment marks are 20mm long and the top of the isosceles triangle with an included angle of 30 degrees points to the arrow.

7. A method for preparing a helmet body based on the template for cutting pieces of any one of claims 1 to 6, comprising the steps of:

s1, cutting the raw materials according to the cutting piece template to obtain a helmet body cutting piece, wherein the helmet body cutting piece is provided with six patches corresponding to the six skirts respectively, the six patches are a first patch, a second patch, a third patch, a fourth patch, a fifth patch and a sixth patch in sequence according to a clockwise arrangement direction, and the first patch and the fourth patch are provided with the alignment marks;

s2, overlapping the center of the cut piece of the helmet body with the middle point of the top of the silica gel air bag mold;

s3, the alignment mark on the first patch is superposed with the forehead midline of the silica gel air bag die, the alignment mark on the fourth patch is superposed with the hindbrain midline of the silica gel air bag die, and meanwhile, the whole helmet body cut piece is placed on the silica gel air bag die in a left-right centering manner;

s4, attaching the first patch to the surface of the air bag die smoothly without folds along the surface curve of the silica gel air bag die;

s5, smoothly fitting and lapping the left edge of the sixth patch on the first patch along the surface curve of the silica gel air bag die, and covering the edge of the sixth patch on the positioning groove of the first patch;

and S6, sequentially lapping the fifth patch on the sixth patch, lapping the fourth patch on the fifth patch, lapping the third patch on the fourth patch, lapping the second patch on the third patch and lapping the first patch on the second patch according to the methods of the steps S4 and S5.

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