CN116728939A - Construction process of head protection equipment for lamination pressing - Google Patents
Construction process of head protection equipment for lamination pressing Download PDFInfo
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- CN116728939A CN116728939A CN202310706004.0A CN202310706004A CN116728939A CN 116728939 A CN116728939 A CN 116728939A CN 202310706004 A CN202310706004 A CN 202310706004A CN 116728939 A CN116728939 A CN 116728939A
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- cloth layer
- cloth
- press
- construction process
- head protection
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000003825 pressing Methods 0.000 title claims abstract description 44
- 230000008569 process Effects 0.000 title claims abstract description 42
- 238000010276 construction Methods 0.000 title claims abstract description 21
- 238000003475 lamination Methods 0.000 title claims description 3
- 239000004744 fabric Substances 0.000 claims abstract description 212
- 238000005507 spraying Methods 0.000 claims abstract description 37
- 238000001035 drying Methods 0.000 claims abstract description 28
- 239000003973 paint Substances 0.000 claims abstract description 21
- 238000005520 cutting process Methods 0.000 claims abstract description 10
- 238000009966 trimming Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 238000003892 spreading Methods 0.000 claims description 16
- 230000007480 spreading Effects 0.000 claims description 16
- 239000007921 spray Substances 0.000 claims description 14
- 238000000465 moulding Methods 0.000 claims description 10
- 239000002648 laminated material Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000001680 brushing effect Effects 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000007547 defect Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/164—Drying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1808—Handling of layers or the laminate characterised by the laying up of the layers
- B32B38/1816—Cross feeding of one or more of the layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1825—Handling of layers or the laminate characterised by the control or constructional features of devices for tensioning, stretching or registration
- B32B38/1833—Positioning, e.g. registration or centering
- B32B38/1841—Positioning, e.g. registration or centering during laying up
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
- B32B2037/243—Coating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The application provides a construction process of a layer material pressing head protection device, which comprises the following steps of: s10: cutting raw materials to form an elliptical cloth layer 1, a elliptical cloth layer 2, a elliptical cloth layer 3, a elliptical cloth layer 4, a elliptical cloth layer 5, a elliptical cloth layer 6, a elliptical cloth layer 8, a elliptical cloth layer 9, a elliptical cloth layer 10, and a circular cloth layer 7; s20: stacking from top to bottom to form a stacking group; s30: placing the stacking group on a first press for pressing to form a rudiment shell; s40: placing the embryonic shell on a second press for pressing and trimming to form a helmet main body; s50: placing the helmet main body with the inner face upwards on a paint spraying device; s60: and taking down the helmet with the upper outer surface of the drying and conveying assembly upwards for assembly. Compared with square cloth layers, the construction process of the layered material pressing head protection equipment improves the quality of finished products of helmets.
Description
Technical Field
The application belongs to the technical field of layered products, and particularly relates to a construction process of layered material pressing head protection equipment.
Background
Army fighters and police wear equipment such as bulletproof helmets and bulletproof vests in order to realize protection when actual combat is exercised, wherein the bulletproof helmets are formed by pressing multi-layer square base fabrics (aromatic polyamide), the square base fabrics with different sizes are paved together from top to bottom, then are pressed through a hydraulic press to form a main body of the helmet, and then are processed to form the final bulletproof helmet, but because the base fabrics are square in shape, the helmets are close to semicircular shells, the corners of the square base fabrics are easy to turn over, nest materials and other phenomena in the pressing process, so that the outer peripheral surface or the inner peripheral surface of the helmet is bulged, wearing experience is affected, and bulletproof effect is reduced.
Disclosure of Invention
The embodiment of the application provides a construction process of layered material pressing head protection equipment, and aims to solve the technical problem that the wearing experience and the bulletproof effect are affected by the defects that bulges are easy to form in the existing helmet base cloth pressing process.
In order to achieve the above purpose, the application adopts the following technical scheme: the construction process of the laminated material pressing head protection equipment comprises the following steps:
s10: cutting raw materials to form an elliptical cloth layer 1, a cloth layer 2, a cloth layer 3, a cloth layer 4, a cloth layer 5, a cloth layer 6, a cloth layer 8, a cloth layer 9, a cloth layer 10 and a circular cloth layer 7, wherein a plurality of cloth layers 1, 2 and 3 are arranged, the long axes of the cloth layers 1, 2, 3 and 5 are equal, the short axes of the cloth layers 1, 2, 3 and 5 are equal, the long axes of the cloth layers 5, 4, 6, 8, 9 and 10 are sequentially reduced, the short axes of the cloth layers 5, 4, 6, 8, 9 and 10 are sequentially reduced, the diameter of the cloth layer 7 is larger than the long axis of the cloth layer 8, and is smaller than the long axis of the cloth layer 6 to the corner cutting cloth layer 8, i.e. the cross cutting cloth layers 1 to 5 are sequentially cut;
s20: the method comprises the following steps of: the method comprises the steps of stacking a number 1 cloth layer-2 cloth layer-6 cloth layer-3 cloth layer-1 cloth layer-7 cloth layer-2 cloth layer-4 cloth layer-8 cloth layer-1 cloth layer-2 cloth layer-9 cloth layer-3 cloth layer-1 cloth layer-10 cloth layer-2 cloth layer-3 cloth layer-5 cloth layer sequentially to form a stacking group, performing one-time spreading pressing every time one cloth layer is placed, and circulating until a rudiment shell is formed;
first press S30: placing the embryonic shell on a second press for pressing and trimming to form a helmet main body;
s40: placing the inner face of the helmet main body upwards on paint spraying equipment, placing the helmet main body on a drying and conveying assembly after the spraying is finished, placing the outer face of the helmet main body after the drying on the paint spraying equipment again upwards, and placing the helmet main body into the drying and conveying assembly again after the spraying;
s50: and taking down the helmet with the upper outer surface of the drying and conveying assembly upwards for assembly.
In one possible implementation manner, the number 1 cloth layer, the number 2 cloth layer, the number 3 cloth layer, the number 4 cloth layer, the number 5 cloth layer, the number 6 cloth layer, the number 8 cloth layer, the number 9 cloth layer and the number 10 cloth layer are provided with two positioning holes which are distributed at intervals along the short axis direction, and the long axis directions of two adjacent cloth layers are parallel to each other;
positioning holes corresponding to the adjacent cloth layers are also formed in the radial direction of the No. 7 cloth layer, and the circle center of the No. 7 cloth layer is vertically overlapped with the center of the adjacent cloth layer;
the spreading process adopts a first press, the first press comprises a lower die, an upper die and a module arranged on the lower die, two upright posts corresponding to the positioning holes are arranged on the module, the upper die is provided with a die cavity corresponding to the module, and the die cavity is internally provided with the positioning holes corresponding to the upright posts.
In one possible implementation manner, the first press further comprises a blanking device, wherein the blanking device is used for blowing air into the positioning holes, and the diameter of the positioning holes is larger than that of the upright posts;
the spreading pressing process specifically comprises the following steps:
each cloth layer is placed according to the sequence in the step S20, the first press is started once, and the upright posts penetrate through positioning holes in each cloth layer;
and when the first press is started each time, the upper die descends until the module is arranged in the die cavity, the upper die ascends after the preset duration of pressure is maintained, and meanwhile, the discharging device blows air into the positioning hole.
In one possible implementation manner, heating devices are arranged in the module and at the positions of the upper module corresponding to the die cavity;
the spreading temperature of the first press is 70-90 ℃ and the pressure is 9-11 MPa.
In one possible implementation manner, the step S30 specifically includes:
s31: brushing glue at positions of the embryonic shells corresponding to the split and the chamfer, and standing until cooling;
s32: preheating the second press;
s33: placing the embryonic shell on the second press for pressing, repeatedly pressing for a plurality of times, and taking out for natural cooling to form a molded shell;
s34: taking out the molded shell, and placing the molded shell on a trimming machine to cut off the flash.
In one possible implementation, the second press has a molding temperature of 150 to 170 ℃ and a molding pressure of 24 to 26MPa.
In one possible implementation, the paint spraying apparatus includes:
the bracket comprises a first supporting frame and a second supporting frame, and further comprises a first motor for respectively driving the first supporting frame and the second supporting frame to rotate; and
the two spraying components respectively correspond to the first supporting frame and the second supporting frame;
the spray assembly includes:
the horizontal sliding rail extends along the direction approaching to and separating from the first supporting frame or the second supporting frame;
the vertical sliding rail is in sliding fit with the horizontal sliding rail;
the output shaft of the second motor is respectively perpendicular to the extending direction and the up-down direction of the horizontal sliding rail; and
and the spray head is fixedly arranged on the output shaft of the second motor.
In one possible implementation, the first support frame includes:
the bottom end of the fixed rod is coaxially fixedly connected to the output shaft of the first motor; and
the support rods are uniformly arranged at the top ends of the fixing rods in an axial direction around the fixing rods, extend upwards obliquely along the direction deviating from the fixing rods, and are provided with buffer cushions at the free ends.
In one possible implementation, the second supporting frame includes:
the bottom end of the fixed rod is coaxially fixedly connected to the output shaft of the first motor; and
the supporting disc is arranged at the top end of the fixing rod, and a buffer cushion is arranged on the periphery of the supporting disc.
In one possible implementation, the drying transfer assembly includes:
the conveying chain group is annular and is positioned in the drying chamber;
a plurality of hoisting frames are arranged on the conveying chain group along the running path of the conveying chain group; and
and a plurality of third supporting frames are arranged on each lifting frame along the up-down direction.
Compared with the prior art, the embodiment of the application has the advantages that the shape of each cloth layer is elliptical, compared with a square cloth layer, the material consumption is reduced, and the manufacturing cost is reduced; the outer surface of the molded shell formed by stacking the elliptic cloth layers together and spreading the cloth is smooth and flat, so that the defects of material extrusion, material shortage, pull injury, bulge, uncompacted and the like are avoided, the processing time of the subsequent procedures is reduced, the production time is shortened, and the production quality and the efficiency are improved; in the process of spraying paint, the inner surface of the helmet main body is sprayed firstly, then the helmet main body is dried in sequence, the dried helmet main body is sprayed outside and then is dried, the spraying and drying processes are crossed, and the efficiency is improved while the spraying surface quality of the helmet main body is ensured.
Drawings
FIG. 1 is a schematic diagram of a front view of a cloth layer according to an embodiment of the present application;
FIG. 2 is a schematic front view of a spray assembly and a drying and conveying assembly according to an embodiment of the present application;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is a schematic front view of a first press according to an embodiment of the present application.
Reference numerals illustrate:
20-a first press; 21-a lower die; 22-upper die; 23-module; 24-stand columns; 25-positioning holes;
30-spraying equipment; 31-a bracket; 32-a first support frame; 33-a second support frame; 34-a first motor; 35-spraying an assembly; 351-horizontal slide rails; 352-vertical slide rail; 353-a second motor; 354-spray head; 36-fixing rod; 37-supporting rods; 38-a support plate; 39-cushion pad;
40-a drying and conveying assembly; 41-conveyor chain sets; 42-hoisting frame; 43-third support frame.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
In this embodiment, the term "inner" refers to the side facing the helmet wearing space and the term "outer" refers to the side facing away from the helmet wearing space.
Referring to fig. 1 to 4, a construction process of the laminated material pressing head protection device provided by the application will be described. The construction process of the laminated material pressing head protection equipment comprises the following steps:
s10: cutting raw materials to form an elliptical cloth layer 1, a cloth layer 2, a cloth layer 3, a cloth layer 4, a cloth layer 5, a cloth layer 6, a cloth layer 8, a cloth layer 9, a cloth layer 10 and a round cloth layer 7, wherein a plurality of cloth layers 1, 2 and 3 are arranged, the long axes of the cloth layers 1, 2, 3 and 5 are equal, the short axes of the cloth layers 1, 2, 3 and 5 are equal, the long axes of the cloth layers 5, 4, 6, 8, 9 and 10 are sequentially reduced, the short axes of the cloth layers 5, 4, 6, 8, 9 and 10 are sequentially reduced, the diameter of the cloth layer 7 is larger than the long axis of the cloth layer 8, and is smaller than the short axis of the cloth layer 6, the cloth layers 1 to 4 are also cut into corners, and the cloth layers 5 to 8 are only cut into cross;
s20: the method comprises the following steps of: the method comprises the steps of stacking a number 1 cloth layer-2 cloth layer-6 cloth layer-3 cloth layer-1 cloth layer-7 cloth layer-2 cloth layer-4 cloth layer-8 cloth layer-1 cloth layer-2 cloth layer-9 cloth layer-3 cloth layer-1 cloth layer-10 cloth layer-2 cloth layer-3 cloth layer-5 cloth layer sequentially to form a stacking group, performing one-time spreading pressing every time one cloth layer is placed, and circulating until a rudiment shell is formed;
s30: placing the embryonic shell on a second press for pressing and trimming to form a helmet main body;
s40: placing the inner surface of the helmet main body on a paint spraying device upwards, placing the helmet main body on a drying and conveying assembly 40 after the painting, placing the outer surface of the helmet main body after drying on the paint spraying device upwards again, and placing the helmet main body into the drying and conveying assembly 40 again after the painting;
s50: the helmet with the upper outer surface of the drying and transferring assembly 40 facing upward is removed to be assembled.
By way of example, the dimensions of each cloth layer are as follows (see fig. 1):
the cloth layer 1 has a short shaft length of 490mm, a long shaft length of 510mm, six forks are uniformly split outwards from the phi 120mm, the first split forms an included angle of 20 degrees with the short shaft axis, and an angle is cut at the phi 340mm, and the angle is 25 degrees;
the cloth layer No. 2 has a short shaft length of 490mm, a long shaft length of 510mm, six forks are uniformly split outwards from the phi 120mm, the first split forms an included angle of 40 degrees with the short shaft axis, and an angle is cut at the phi 340mm, and the angle is 25 degrees;
the cloth layer 3 has a short shaft length of 490mm, a long shaft length of 510mm, six forks are evenly split outwards from the phi 120mm, the first split forms an included angle of 60 degrees with the short shaft axis, and an angle is cut at the phi 340mm, and the angle is 25 degrees;
the cloth layer No. 4 has a short shaft length of 440mm, a long shaft length of 460mm, six forks are uniformly split outwards from the phi 120mm, the first split forms an included angle of 60 degrees with the short shaft axis, and an angle is cut at the phi 340mm, and the angle is 25 degrees;
the cloth layer No. 5 has a short shaft length of 490mm and a long shaft length of 510mm, six forks are uniformly split outwards from the phi 120mm, and the first split forms an included angle of 30 degrees with the short shaft axis and is not cut;
the cloth layer 6 has a short shaft length of 310mm and a long shaft length of 330mm, six forks are uniformly split outwards from the phi 120mm, and the first split forms an included angle of 30 degrees with the short shaft axis and is not cut;
the No. 7 cloth layer has a diameter of 270mm, six forks are uniformly formed outwards from the phi 120mm, and the first split forms an included angle of 30 degrees with the axis of the short shaft without cutting the angle;
the cloth layer 8 has a long shaft length of 230mm, a short shaft length of 205mm, six forks are uniformly split outwards from the phi 120mm, and the first split forms an included angle of 30 degrees with the short shaft axis and is not cut;
no. 9 cloth layer, the long axis length of the long axis is 190mm, the short axis length of the short axis is 165mm, no fork is opened and no corner cut is caused;
no. 10 cloth layer, the long axis length of the long axis is 120mm, the short axis length of the short axis is 95mm, and no fork and no corner cutting are caused.
Compared with the prior art, the construction process of the laminated material pressing head protection equipment provided by the embodiment has the advantages that the shape of each cloth layer is elliptical, compared with a square cloth layer, the material consumption is reduced, and the manufacturing cost is reduced; the outer surface of the molded shell formed by stacking the elliptic cloth layers together and spreading the cloth is smooth and flat, so that the defects of material extrusion, material shortage, pull injury, bulge, uncompacted and the like are avoided, the processing time of the subsequent procedures is reduced, the production time is shortened, and the production quality and the efficiency are improved; in the process of spraying paint, the inner surface of the helmet main body is sprayed firstly, then the helmet main body is dried in sequence, the dried helmet main body is sprayed outside and then is dried, the spraying and drying processes are crossed, and the efficiency is improved while the spraying surface quality of the helmet main body is ensured.
In some embodiments, a modified implementation of the construction process of the laminated head protection device may adopt a structure as shown in fig. 1 to 2. The cloth layers 1, 2, 3, 4, 5, 6, 8, 9 and 10 are provided with two positioning holes which are distributed at intervals along the short axis direction, and the long axis directions of the two adjacent cloth layers are parallel to each other; positioning holes corresponding to the adjacent cloth layers are also formed in the radial direction of the No. 7 cloth layer, and the circle center of the No. 7 cloth layer is overlapped with the center of the adjacent cloth layer up and down; the spreading process adopts a first press 20, the first press 20 comprises a lower die 21, an upper die 22 and a die block 23 arranged on the lower die 21, two upright posts 24 corresponding to the positioning holes are arranged on the die block 23, the upper die 22 is provided with a die cavity corresponding to the die block 23, and the die cavity is internally provided with positioning holes 25 corresponding to the upright posts 24. In the process of spreading, the cloth layers are paved on the modules 23 according to the sequence of S20, each layer of cloth layer is paved, the second press is used for pressing once, the upright posts 24 are matched with the positioning holes on the cloth layers, the installation positions of the cloth layers on the modules 23 are conveniently positioned, the position correspondence of each layer of cloth layer after press forming is ensured, the hardness and the strength of the helmet are ensured, and meanwhile, the quality defect caused by dislocation is avoided.
It should be noted that, because the adjacent cloth layers of the cloth layer No. 7 are all elliptical cloth layers, the center of the adjacent cloth layers refers to the intersection point of the major axis and the minor axis of the elliptical cloth layer.
Optionally, the two positioning holes on each cloth layer (excluding the cloth layer No. 7) are bilaterally symmetrical with the long axis as the symmetry axis, wherein the cloth layer No. 7 is a circular cloth layer, so that the two positioning holes on the cloth layer No. 7 are bilaterally symmetrical with the radial direction passing through the center of the circle as the symmetry axis.
In some embodiments, a specific implementation of the step S30 may adopt a structure as shown in fig. 2. Referring to fig. 2, the first press 20 further includes a blanking device, which is used for blowing air into the positioning holes 25, and the diameter of the positioning holes 25 is larger than that of the upright posts 24;
the spreading pressing process specifically comprises the following steps:
each cloth layer is placed according to the sequence in the step S20, the first press 20 is started once, and the upright posts 24 penetrate through the positioning holes 25 on each cloth layer;
each time the first press 20 is started, the upper die 22 descends until the die block 23 is placed in the die cavity, the upper die 22 ascends after being held for a preset time, and simultaneously the blanking device blows air into the positioning holes 25.
After the first press 20 presses, the embryonic shells are prevented from being stuck in the mold cavity by blowing air when the upper mold 22 and the lower mold 21 are separated, and the embryonic shells are conveniently taken out.
Optionally, the blanking device is a gas tank and an air pump, and the opening and closing of the air pump realizes blowing or closing from the positioning hole 25.
In some embodiments, a modified implementation of the second press described above may be employed as follows. Heating devices are arranged in the mold blocks 23 and at the positions of the upper mold 22 corresponding to the mold cavities;
the temperature of the paving material of the first press 20 is 70-90 ℃ and the pressure is 9-11 MPa.
Optionally, the heating device may be an electric heating tube, and the upper die 22 and the lower die 21 are respectively provided with the electric heating tube, so that heating is performed in the pressing process of the first press 20, and the two adjacent cloth layers are combined conveniently; proper spreading temperature and pressure are selected to be beneficial to the forming quality of spreading.
As an alternative data, the mat temperature of the first press 20 was 80 ℃, the mat pressure 10MPa, and the pressure hold time 15 seconds.
In some embodiments, a specific implementation of the step S40 may be as follows. The step S30 specifically comprises the following steps:
s31: brushing glue at positions of the embryonic shells corresponding to the split and the chamfer, and standing until cooling;
s32: preheating a second press;
s33: placing the embryonic shell on a second press for pressing, repeatedly pressing for a plurality of times, and taking out for natural cooling to form a molded shell;
s34: taking out the molded shell, and placing the molded shell on a trimming machine to cut off the flash.
If the split position is directly pressed by using the second press, the appearance defects such as stacking and the like are easily caused by dislocation of the cloth layers at the split position, the cloth layers at the split position can be fixed after glue brushing, and then the pressing is performed, so that the appearance quality of the helmet main body is ensured; the temperature of the die can be ensured when the first molding and pressing is performed by preheating before the molding and pressing, and the bonding strength between the multi-layer cloth layers can be improved by pressing for multiple times, so that the hardness and the strength of the helmet main body are improved.
Optionally, the preheating pressure is 5MPa (dead weight of the die), the preheating time is 5 minutes, the preheating time is up to the time of pressing down the upper die 22, the upper die 22 is lifted to be deflated after 30 seconds, the pressing down is stopped for 2 seconds, and the deflation is repeated for 3 times.
In some embodiments, a modified implementation of the step S40 may be as follows. The molding temperature of the second press is 150-170 ℃ and the molding pressure is 24-26 MPa. Optionally, the molding pressure is 25MPa, the molding temperature is 160 ℃, the pressure maintaining time is 18 minutes, and the product is taken out for natural cooling after the time is up. By setting the forming temperature and the forming pressure, the on-site operation of workers is facilitated, and the forming quality of the helmet main body is ensured.
In some embodiments, a specific implementation of the paint spraying apparatus may adopt a structure as shown in fig. 3. Referring to fig. 3, the paint spraying apparatus 30 includes a bracket 31 and two spray assemblies 35, the bracket 31 includes a first support bracket 32 and a second support bracket 33, and the bracket 31 includes a first motor 34 for driving the first support bracket 32 and the second support bracket 33 to rotate, respectively; the two spraying components 35 correspond to the first supporting frame 32 and the second supporting frame 33 respectively;
the spraying assembly 35 includes a horizontal slide 351, a vertical slide 352, a second motor 353, and a spray head 354, the horizontal slide 351 extending in a direction toward and away from the first support 32 or the second support 33; the vertical sliding rail 352 is in sliding fit with the horizontal sliding rail 351; the second motor 353 is slidably fitted to the vertical sliding rail 352, and an output shaft of the second motor 353 is perpendicular to the extending direction and the up-down direction of the horizontal sliding rail 351; the spray head 354 is fixedly arranged on the output shaft of the second motor 353.
It is easy to understand that the first motors 34 are provided with two, one first motor 34 is connected with the first supporting frame 32, the other one is connected with the second supporting frame 33, and the helmet main body on the first supporting frame 32 or the second supporting frame 33 is driven to rotate in the process of spraying paint, so that the paint is sprayed uniformly.
In the specific implementation process, firstly, the helmet main body is placed on the first support frame 32 with the inner surface facing upwards, the spraying component 35 corresponding to the first support frame 32 is started, the vertical slide rail 352 moves along the horizontal slide rail 351, the second motor 353 moves on the vertical slide rail 352 until the spray head 354 is positioned above the helmet main body, the spray head 354 is started (connected with a paint can), the spray head 354 sprays paint, and meanwhile, the second motor 353 drives the spray head 354 to rotate, so that the spraying process of the helmet is completed; the spraying process on the second support frame 33 is the same, but the second support frame 33 is used for bearing the helmet main body with the outside upwards, namely, after the helmet main body on the first support frame 32 is sprayed, the helmet main body is placed on the drying and conveying assembly 40, the drying and conveying assembly 40 returns to the position of the paint spraying equipment after rotating for one circle, the inner surface is sprayed after being taken down and placed on the second support frame 33, and the structure can enable the inner surface spraying process and the outer surface spraying process to be carried out simultaneously, so that the production efficiency is improved.
In some embodiments, a specific implementation of the first support 32 may be configured as shown in fig. 3. Referring to fig. 3, the first supporting frame 32 includes a fixing rod 36 and a plurality of supporting rods 37, wherein the bottom end of the fixing rod 36 is coaxially and fixedly connected to the output shaft of the first motor 34; the plurality of support rods 37 are uniformly arranged at the top ends of the fixing rods 36 around the axial direction of the fixing rods 36, the support rods 37 extend obliquely upwards in the direction away from the fixing rods 36, and the free ends of the support rods 37 are provided with cushions 39. The first support frame 32 mainly supports the helmet main body with the inner surface facing upwards, and a plurality of support rods 37 are arranged and can be wound on the periphery of the helmet, so that the helmet is stably supported, and falling is prevented in the spraying process; by providing the cushion 39, the support bar 37 can be prevented from breaking the paint on the helmet body.
In some embodiments, a specific implementation of the second support frame 33 may be configured as shown in fig. 3 to 4. Referring to fig. 3 to 4, the second supporting frame 33 includes a fixing rod 36 and a supporting disc 38, and the bottom end of the fixing rod 36 is coaxially and fixedly connected to the output shaft of the first motor 34; the support plate 38 is provided at the top end of the fixing rod 36, and a cushion pad 39 is provided on the outer periphery of the support plate 38. The second supporting frame 33 mainly supports the helmet main body with the outside facing upwards, so that the supporting disc 38 needs to extend into the helmet main body to support, the area supported by the supporting disc 38 is large, the helmet is stably supported, and falling is prevented in the spraying process; by providing the cushion 39 such that the cushion 39 is spaced between the support disk 38 and the helmet body, the outer edges of the support disk 38 are prevented from gouging paint on the helmet body.
In some embodiments, one embodiment of the drying and conveying assembly 40 may adopt a structure as shown in fig. 3. Referring to fig. 3, the drying and conveying assembly 40 includes a conveying chain set 41, a hanger 42, and a third supporting frame 43, and the conveying chain set 41 is in a ring shape and is located in the drying chamber; the hoisting frame 42 is provided with a plurality of hoisting frames on the conveyor chain group 41 along the running path of the conveyor chain group 41; a plurality of third supporting frames 43 are provided in the up-down direction on each of the hoisting frames 42. In the process of spraying paint, the conveying chain group 41 is continuously and slowly conveyed, so that the conveyed helmet can be manually taken down, the sprayed helmet main body is conveniently placed on the third supporting frame 43, and the third supporting frame 43 can ensure that the sprayed surface of the helmet is exposed so as to be beneficial to drying; a plurality of third supporting frames 43 are arranged on each lifting frame 42, so that the number of helmets placed on the drying and conveying assembly 40 is increased, and the production efficiency is improved.
The third supporting frame 43 is divided into two shapes, one of which is identical to the first supporting frame 32 and the other of which is identical to the second supporting frame 33. An upper third supporting frame 43 and a lower third supporting frame 43 can be arranged on each lifting frame 42, and the two third supporting frames 43 on the same lifting frame 42 are different in appearance.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.
Claims (10)
1. The construction process of the laminated material pressing head protection device is characterized by comprising the following steps of:
s10: cutting raw materials to form an elliptical cloth layer 1, a cloth layer 2, a cloth layer 3, a cloth layer 4, a cloth layer 5, a cloth layer 6, a cloth layer 8, a cloth layer 9, a cloth layer 10 and a circular cloth layer 7, wherein a plurality of cloth layers 1, 2 and 3 are arranged, the long axes of the cloth layers 1, 2, 3 and 5 are equal, the short axes of the cloth layers 1, 2, 3 and 5 are equal, the long axes of the cloth layers 5, 4, 6, 8, 9 and 10 are sequentially reduced, the short axes of the cloth layers 5, 4, 6, 8, 9 and 10 are sequentially reduced, the diameter of the cloth layer 7 is larger than the long axis of the cloth layer 8, and is smaller than the long axis of the cloth layer 6 to the corner cutting cloth layer 8, i.e. the cross cutting cloth layers 1 to 5 are sequentially cut;
s20: the method comprises the following steps of: the method comprises the steps of stacking a number 1 cloth layer-2 cloth layer-6 cloth layer-3 cloth layer-1 cloth layer-7 cloth layer-2 cloth layer-4 cloth layer-8 cloth layer-1 cloth layer-2 cloth layer-9 cloth layer-3 cloth layer-1 cloth layer-10 cloth layer-2 cloth layer-3 cloth layer-5 cloth layer sequentially to form a stacking group, performing one-time spreading pressing every time one cloth layer is placed, and circulating until a rudiment shell is formed;
s30: placing the embryonic shell on a second press for pressing and trimming to form a helmet main body;
s40: placing the inner face of the helmet main body upwards on paint spraying equipment, placing the helmet main body on a drying and conveying assembly after the spraying is finished, placing the outer face of the helmet main body after the drying on the paint spraying equipment again upwards, and placing the helmet main body into the drying and conveying assembly again after the spraying;
s50: and taking down the helmet with the upper outer surface of the drying and conveying assembly upwards for assembly.
2. The construction process of the laminated material pressing head protection device according to claim 1, wherein two positioning holes which are distributed at intervals along the short axis direction are formed in each of a cloth layer 1, a cloth layer 2, a cloth layer 3, a cloth layer 4, a cloth layer 5, a cloth layer 6, a cloth layer 8, a cloth layer 9 and a cloth layer 10, and the long axis directions of the two adjacent cloth layers are parallel to each other;
positioning holes corresponding to the adjacent cloth layers are also formed in the radial direction of the No. 7 cloth layer, and the circle center of the No. 7 cloth layer is vertically overlapped with the center of the adjacent cloth layer;
the spreading process adopts a first press, the first press comprises a lower die, an upper die and a module arranged on the lower die, two upright posts corresponding to the positioning holes are arranged on the module, the upper die is provided with a die cavity corresponding to the module, and the die cavity is internally provided with the positioning holes corresponding to the upright posts.
3. The construction process of the laminated material pressing head protection equipment according to claim 2, wherein the first press further comprises a blanking device, wherein the blanking device is used for blowing air into the positioning holes, and the diameter of the positioning holes is larger than that of the upright posts;
the spreading pressing process specifically comprises the following steps:
each cloth layer is placed according to the sequence in the step S20, the first press is started once, and the upright posts penetrate through positioning holes in each cloth layer;
and when the first press is started each time, the upper die descends until the module is arranged in the die cavity, the upper die ascends after the preset duration of pressure is maintained, and meanwhile, the discharging device blows air into the positioning hole.
4. The construction process of the laminated material pressing head protection device according to claim 3, wherein the heating devices are arranged in the module and at the positions of the upper module corresponding to the die cavity;
the spreading temperature of the first press is 70-90 ℃ and the pressure is 9-11 MPa.
5. The construction process of the laminated material pressing head protection device according to claim 1, wherein the step S30 specifically includes:
s31: brushing glue at positions of the embryonic shells corresponding to the split and the chamfer, and standing until cooling;
s32: preheating the second press;
s33: placing the embryonic shell on the second press for pressing, repeatedly pressing for a plurality of times, and taking out for natural cooling to form a molded shell;
s34: taking out the molded shell, and placing the molded shell on a trimming machine to cut off the flash.
6. The construction process of the head protection device for lamination pressing according to claim 5, wherein the molding temperature of the second press is 150-170 ℃ and the molding pressure is 24-26 MPa.
7. The construction process of the laminated head protection equipment according to claim 1, wherein the paint spraying equipment comprises:
the bracket comprises a first supporting frame and a second supporting frame, and further comprises a first motor for respectively driving the first supporting frame and the second supporting frame to rotate; and
the two spraying components respectively correspond to the first supporting frame and the second supporting frame;
the spray assembly includes:
the horizontal sliding rail extends along the direction approaching to and separating from the first supporting frame or the second supporting frame;
the vertical sliding rail is in sliding fit with the horizontal sliding rail;
the output shaft of the second motor is respectively perpendicular to the extending direction and the up-down direction of the horizontal sliding rail; and
and the spray head is fixedly arranged on the output shaft of the second motor.
8. The laminate extrusion head protection equipment construction process of claim 7, wherein the first support frame comprises:
the bottom end of the fixed rod is coaxially fixedly connected to the output shaft of the first motor; and
the support rods are uniformly arranged at the top ends of the fixing rods in an axial direction around the fixing rods, extend upwards obliquely along the direction deviating from the fixing rods, and are provided with buffer cushions at the free ends.
9. The laminate extrusion head protection equipment construction process of claim 7 or 8, wherein the second support frame comprises:
the bottom end of the fixed rod is coaxially fixedly connected to the output shaft of the first motor; and
the supporting disc is arranged at the top end of the fixing rod, and a buffer cushion is arranged on the periphery of the supporting disc.
10. The laminate extrusion head protection equipment construction process of claim 1, wherein the drying and conveying assembly comprises:
the conveying chain group is annular and is positioned in the drying chamber;
a plurality of hoisting frames are arranged on the conveying chain group along the running path of the conveying chain group; and
and a plurality of third supporting frames are arranged on each lifting frame along the up-down direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310706004.0A CN116728939B (en) | 2023-06-14 | 2023-06-14 | Construction process of head protection equipment for lamination pressing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310706004.0A CN116728939B (en) | 2023-06-14 | 2023-06-14 | Construction process of head protection equipment for lamination pressing |
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| CN116728939B CN116728939B (en) | 2024-02-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160187104A1 (en) * | 2014-06-23 | 2016-06-30 | Mku Pvt. Ltd. | Trauma resistant anti ballistic helmet |
| CN208853085U (en) * | 2018-08-07 | 2019-05-14 | 乐清市中械自动化设备有限公司 | A kind of automatic paint-spraying machine of the helmet |
| CN111330771A (en) * | 2020-02-29 | 2020-06-26 | 山东新兴安全防护设备股份有限公司 | Automatic spraying equipment for bulletproof helmet |
| CN115847866A (en) * | 2022-12-15 | 2023-03-28 | 北京普凡防护科技有限公司 | Nonmetal bulletproof helmet and preparation device and preparation method thereof |
-
2023
- 2023-06-14 CN CN202310706004.0A patent/CN116728939B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160187104A1 (en) * | 2014-06-23 | 2016-06-30 | Mku Pvt. Ltd. | Trauma resistant anti ballistic helmet |
| CN208853085U (en) * | 2018-08-07 | 2019-05-14 | 乐清市中械自动化设备有限公司 | A kind of automatic paint-spraying machine of the helmet |
| CN111330771A (en) * | 2020-02-29 | 2020-06-26 | 山东新兴安全防护设备股份有限公司 | Automatic spraying equipment for bulletproof helmet |
| CN115847866A (en) * | 2022-12-15 | 2023-03-28 | 北京普凡防护科技有限公司 | Nonmetal bulletproof helmet and preparation device and preparation method thereof |
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| CN116728939B (en) | 2024-02-02 |
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