A kind of bulletproof helmet material piece press bonding soft pressure rotary heating device

Abstract

The utility model relates to a bulletproof helmet material piece pressure sticking soft pressure rotary heating device, it includes frame, installs in the middle part pressure sticking and keeping device of big material piece of frame, six big material piece heating soft pressure device, vacuum suction material piece and even material piece rotary device of piece head mould, small material piece fetches material and piece pressure sticking device and big or small material piece blow hot -blast heating device, the middle part pressure sticking and keeping device of big material piece provides a big material piece positioning and pressure sticking quality stable guarantee of piece head mould, prevents big material piece from moving to any direction because of the inharmoniousness of the action between six big material piece piece clamping piece laying device in the process of laying piece, and material piece fully deforms not to produce wrinkle, and is smoothly bonded together, adopts the utility model full -automatic piece laying, and material piece effective bonding, piece laying is even, and the bulletproof helmet appearance after shaping is beautiful, and the product quality is high, and piece laying saves time and labour, improves work efficiency, is applicable to the popularization and application of the equipment enterprise.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bulletproof helmet material piece pressure sticking soft pressure rotary heating device belongs to the bulletproof product production and processing technical field of equipment and tool class. BACKGROUND

[0002] At present, the production of bulletproof helmet is composed of n large material pieces (integral cutting piece) and m small material pieces (elliptical cutting piece added to strengthen the strength of the top of the helmet) on the laying head die; the large and small material pieces are all dipped aramid fabric according to the size after cutting, and each large material piece has six cutting seams, i.e. six material petals, and the whole is in the shape of a fan blade; in the production process, a plurality of large material pieces are usually laid on the laying head die, and in order to make up for the thickness difference accumulated at the top and the lower part of the helmet, one small material piece is laid on the top of the helmet, and the large and small material pieces are laid back and forth until the laying is completed, and attention should be paid to the fact that the last two layers must be large material pieces to prevent the small material piece from leaving marks on the inner and outer surfaces of the helmet.

[0003] In the traditional production process of bulletproof helmet, the laying process has always been operated manually, generally by pulling the material piece with one hand and heating the material piece with a hot air gun with the other hand, and then laying one petal after another, which may cause finger burns or material piece damage if not careful, and each operator has different techniques, resulting in various helmets, some of which have too loose layers, some of which have insufficient heating time, some of which have no effective adhesion between the material pieces, some of which have long heating time causing the glue layer to fail, some of which have too much pulling, causing large material piece deformation, resulting in local over-thickness, local material shortage, material piece damage during pressing, local wrinkles, greatly reducing the bulletproof performance and appearance quality of the helmet, and causing many defective products, which cannot be repaired due to the material of the bulletproof helmet, and can only be scrapped, causing great loss and waste. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem of providing a bulletproof helmet material piece pressure sticking soft pressure rotary heating device for full-automatic laying, preventing material piece deformation, and fully deforming and tightly wrapping the laying head die during laying.

[0005] The utility model adopts the following technical scheme:

[0006] The utility model discloses a rack, install in the rack's big piece of material middle part pressure and stick to and keep device, six big piece of material heating soft pressure device, lay piece head mould vacuum suction piece and even lay piece rotation device and big piece of material blow hot -blast heating device, lay piece head mould vacuum suction piece and even lay piece rotation device install in the middle part of rack, six big piece of material heating soft pressure device is even installed in the outside of lay piece head mould vacuum suction piece and even lay piece rotation device in annular interval, big piece of material middle part pressure and stick to and keep device install in the middle part upper layer one side of rack and lay piece head mould vacuum suction piece and even lay piece rotation device top correspondence, big piece of material blow hot -blast heating device installs in the middle part bottom layer and middle layer of rack and is located below lay piece head mould vacuum suction piece and even lay piece rotation device.

[0007] The utility model discloses a rack, install in the rack's big piece of material middle part pressure and stick to and keep device, six big piece of material heating soft pressure device, lay piece head mould vacuum suction piece and even lay piece rotation device and big piece of material blow hot -blast heating device, lay piece head mould vacuum suction piece and even lay piece rotation device install in the middle part of rack, six big piece of material heating soft pressure device is even installed in the outside of lay piece head mould vacuum suction piece and even lay piece rotation device in annular interval, big piece of material middle part pressure and stick to and keep device install in the middle part upper layer one side of rack and lay piece head mould vacuum suction piece and even lay piece rotation device top correspondence, big piece of material blow hot -blast heating device installs in the middle part bottom layer and middle layer of rack and is located below lay piece head mould vacuum suction piece and even lay piece rotation device.

[0008] The utility model discloses a rack, install in the rack's big piece of material middle part pressure and stick to and keep device, six big piece of material heating soft pressure device, lay piece head mould vacuum suction piece and even lay piece rotation device and big piece of material blow hot -blast heating device, lay piece head mould vacuum suction piece and even lay piece rotation device install in the middle part of rack, six big piece of material heating soft pressure device is even installed in the outside of lay piece head mould vacuum suction piece and even lay piece rotation device in annular interval, big piece of material middle part pressure and stick to and keep device install in the middle part upper layer one side of rack and lay piece head mould vacuum suction piece and even lay piece rotation device top correspondence, big piece of material blow hot -blast heating device installs in the middle part bottom layer and middle layer of rack and is located below lay piece head mould vacuum suction piece and even lay piece rotation device.

[0009] The utility model discloses a rack, install in the rack's big piece of material middle part pressure and stick to and keep device, six big piece of material heating soft pressure device, lay piece head mould vacuum suction piece and even lay piece rotation device and big piece of material blow hot -blast heating device, lay piece head mould vacuum suction piece and even lay piece rotation device install in the middle part of rack, six big piece of material heating soft pressure device is even installed in the outside of lay piece head mould vacuum suction piece and even lay piece rotation device in annular interval, big piece of material middle part pressure and stick to and keep device install in the middle part upper layer one side of rack and lay piece head mould vacuum suction piece and even lay piece rotation device top correspondence, big piece of material blow hot -blast heating device installs in the middle part bottom layer and middle layer of rack and is located below lay piece head mould vacuum suction piece and even lay piece rotation device.

[0010] This utility model relates to a hot air heating device for large and small sheet materials. The device softens the adhesive layer on the sheet materials during the laying process, allowing for sufficient deformation of the sheets on the laying head mold surface (i.e., sufficient sliding between the sheet fibers). This tightly wraps the sheets around the mold, preventing gaps between multiple layers and minimizing trapped air. Any remaining small amount of air in the gaps during pressing is easily expelled, preventing defects such as air bubbles in the bulletproof helmet. The hot air outlet temperature is 120℃~160℃, with the optimal temperature adjusted according to the environment and season. This fully automatic laying method effectively bonds the sheets, preventing deformation and ensuring uniform laying. The resulting bulletproof helmet is aesthetically pleasing, of high quality, and saves time and labor, significantly improving work efficiency. It is suitable for widespread application by equipment manufacturers. Attached Figure Description

[0011] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Appendix Figure 2 This is a schematic diagram of the frame structure of this utility model;

[0013] Appendix Figure 3 This is a schematic diagram of the structure of the large material sheet pressing and holding device of this utility model;

[0014] Appendix Figure 4 This is a schematic diagram of the assembly structure of the parts of the large sheet pressing and holding device of this utility model;

[0015] Appendix Figure 5 This is a schematic diagram of the structure of the large sheet heating and gentle pressing device of this utility model;

[0016] Appendix Figure 6 This is a schematic diagram of the assembly structure of the large sheet heating and soft pressing device of this utility model;

[0017] Appendix Figure 7 This is a schematic diagram of the M-shaped heating belt structure of this utility model;

[0018] Appendix Figure 8 This is a schematic diagram of the structure of the vacuum suction sheet of the sheeting head mold and the uniform sheeting rotation device of this utility model;

[0019] Appendix Figure 9 This is a schematic diagram of the assembly structure of the vacuum suction plate of the sheeting head mold and the uniform sheeting rotation device of this utility model;

[0020] Appendix Figure 10 For the appendix Figure 8 Enlarged cross-sectional view of point A;

[0021] Appendix Figure 11 This is a schematic diagram of the assembly of the parts of the hot air blowing and heating device for large and small material sheets of this utility model;

[0022] Figure 1 is a schematic view of a large sheet structure of the present application; Figure 12 Figure 2 is a schematic view of a large sheet structure of the present application;

[0023] Figure 3 is a schematic view of a large sheet structure of the present application; Figure 13 Figure 4 is a schematic view of a large sheet structure of the present application;

[0024] Figure 5 is a schematic view of a large sheet structure of the present application; Figure 14 Figure 6 is a schematic view of a large sheet structure of the present application;

[0025] Figure 7 is a schematic view of a large sheet structure of the present application; Figure 15 Figure 8 is a schematic view of a large sheet structure of the present application;

[0026] Figure 9 is a schematic view of a large sheet structure of the present application; Figure 16 Figure 10 is a schematic view of a large sheet structure of the present application;

[0027] Figure 11 is a schematic view of a large sheet structure of the present application; Figure 17 Figure 12 is a schematic view of a large sheet structure of the present application;

[0028] Figure 13 is a schematic view of a large sheet structure of the present application; Figure 18 Figure 14 is a schematic view of a large sheet structure of the present application;

[0029] Figure 15 is a schematic view of a large sheet structure of the present application; Figure 19 Figure 16 is a schematic view of a large sheet structure of the present application;

[0030] Figure 17 is a schematic view of a large sheet structure of the present application; Figure 20 Figure 18 is a schematic view of a large sheet structure of the present application;

[0031] Figure 19 is a schematic view of a large sheet structure of the present application; Figure 21 Figure 20 is a schematic view of a large sheet structure of the present application;

[0032] Figure 21 is a schematic view of a large sheet structure of the present application; Figure 22 Figure 22 is a schematic view of a large sheet structure of the present application; DETAILED DESCRIPTION

[0033] Figure 23 is a schematic view of a large sheet structure of the present application; Figure 1As shown in the utility model, the bulletproof helmet material sheet pressure bonding and soft pressure rotating heating device is characterized in that it comprises a rack 1, a large material sheet middle part pressure bonding and holding device 4 and 6 large material sheet heating soft pressure devices 5, a sheet laying head mold vacuum material sheet suction and uniform sheet laying rotating device 6 and a large and small material sheet hot air blowing heating device 8 which are installed on the rack 1; the sheet laying head mold vacuum material sheet suction and uniform sheet laying rotating device 6 is installed in the middle part of the rack 1, the large material sheet heating soft pressure device 5 is annularly and uniformly installed on the outside of the sheet laying head mold vacuum material sheet suction and uniform sheet laying rotating device 6, the large material sheet middle part pressure bonding and holding device 4 is installed on the upper layer of the middle part of the rack 1 and corresponds to the top of the sheet laying head mold vacuum material sheet suction and uniform sheet laying rotating device 6, and the large and small material sheet hot air blowing heating device 8 is installed on the bottom layer and the middle layer of the middle part of the rack 1 and is located below the sheet laying head mold vacuum material sheet suction and uniform sheet laying rotating device 6.

[0034] As Figure 2 shown, the rack 1 comprises a rack body 109 arranged horizontally, a load-bearing main beam 101 horizontally installed on the upper layer of the rack body 109, a support rack 106 and a small material sheet platform 107 correspondingly installed on the middle layers of the left and right sides of the rack body 109, a head mold mounting rack 108 installed between the support rack 106 and the small material sheet platform 107 and a load-bearing branch beam 105 installed on the front side of the upper layer of the head mold mounting rack 108, the load-bearing branch beam 105 is perpendicular to the load-bearing main beam 101, a polygonal workbench plate 103 is installed in the middle part of the head mold mounting rack 108; six long holes 104 are arranged on the circumferential surface of the workbench plate 103 at intervals, six soft pressure columns 102 are uniformly installed on the circumferences of the workbench plate 103 at intervals outside the six long holes 104; an annular fixed plate 110 is fixedly installed on the top of the six soft pressure columns 102, a support column 111 is fixedly installed between the six soft pressure columns 102, and a disconnected section 112 is arranged on the upper part of the soft pressure column 102; each large material sheet heating soft pressure device 5 of the utility model is correspondingly installed on the inner side of the disconnected section 112 of the upper part of the soft pressure column 102, the large material sheet middle part pressure bonding and holding device 4 is installed on the load-bearing branch beam 105, the sheet laying head mold vacuum material sheet suction and uniform sheet laying rotating device 6 is installed on the workbench plate 103, and the large and small material sheet hot air blowing heating device 8 is installed below the workbench plate 103.

[0035] As attached Figure 3 , 4The utility model discloses a big material piece middle part pressure stick and keep device 4 including pressure stick and return assembly, install Z -shaped connecting plate 401 of pressure stick and return assembly bottom, install the counter -thrust subassembly on the top surface of Z -shaped connecting plate 401 lower one end and install the lifting pressure heating subassembly on the bottom surface of Z -shaped connecting plate 401 lower one end, the pressure stick and return assembly includes pressure stick and return cylinder 402 and the sliding block B 404 of sliding installation on slide rail B 403, the slide rail B 403 is installed on the bottom surface of bearing support beam 105, the higher one end of Z -shaped connecting plate 401 is fixedly installed on the bottom surface of sliding block B 404, the U -shaped base 405 is fixedly installed on bearing support beam 105 front end bottom surface, the right angle connecting plate B 406 is fixedly installed on the bottom surface of sliding block B 404, the lug seat B 407 is fixedly installed on pressure stick and return cylinder 402 cylinder body end, the lug seat B 407 is hinged with U -shaped base 405, the vertical side plate of right angle connecting plate B 406 is fixedly connected with the piston rod end of pressure stick and return cylinder 402, the model of pressure stick and return cylinder 402 is SU40 350S, the counter -thrust subassembly includes vertically installed counter -thrust cylinder 408 and the top plate 409 of fixed installation on counter -thrust cylinder 408 piston rod top end, and the both sides of counter -thrust cylinder 408 cylinder body are fixedly installed with upper right angle folding plate A 410 and upper right angle folding plate B 411 respectively, and the bottom plate of upper right angle folding plate A 410 and upper right angle folding plate B 411 is fixedly installed on the top surface of Z -shaped connecting plate 401 lower one end respectively, the piston rod of counter -thrust cylinder 408 drives the top plate 409 to rise to the bottom surface of slide rail B 403 from the original position, and the model of counter -thrust cylinder 408 is TN20 30, the lifting pressure heating subassembly includes lifting pressure cylinder 412, lower pressure disc 413, heating rod 414, temperature control probe 415 and temperature -resistant silica gel round piece 416, lower right angle folding plate A 417 and lower right angle folding plate B 418 are fixedly installed on the both sides of lifting pressure cylinder 412 outer wall respectively, and the top plate of lower right angle folding plate A 417 and lower right angle folding plate B 418 is fixedly installed on the bottom surface of Z -shaped connecting plate 401 lower one end respectively, the bottom end piston rod of lifting pressure cylinder 412 is fixedly connected with the top surface of lower pressure disc 413 through hinged plate, heating rod 414 and temperature control probe 415 are installed in the mounting hole of lower pressure disc 413 side wall respectively at intervals, temperature -resistant silica gel round piece 416 is bonded on the bottom surface of lower pressure disc 413, the size of temperature -resistant silica gel round piece 416 is same with big material piece not cutting top circle, and the model of lifting pressure cylinder 412 is TN20 200S.

[0036] As attached Figure 3 , 4, 12, the utility model discives a big piece of material middle part pressure sticking and keeping device 4 when working, when 6 big piece of material piece clamping and paving device 3 holds and keeps the big piece of material 9 sent over, the piston rod of pressure sticking reciprocating cylinder 402 stretches from the original position, sends the lower pressure disc 413 installed in the low end of Z-shaped connecting plate 401 to the just above of paving head mould 601, that is the central part of big piece of material 9, the piston rod of lifting pressure cylinder 412 stretches and drives the lower pressure disc 413 to drop, and the temperature of heating rod 414 has been electrified and rises to 60 DEG C ~ 70 DEG C, and the piston rod of counter -thrust cylinder 408 rises from the original position and tops the top plate 409 to the bottom surface of slide rail B 404, and the pressure is transmitted to the top surface of paving head mould 601, and keeps to pave a piece of big piece of material 9 action to be completed.

[0037] As attached Figure 5 、 6, 7, the utility model discloses big piece of material heating soft pressing device 5 includes soft pressing to and fro drive assembly, soft pressing subassembly and guiding component, the soft pressing to and fro drive assembly includes the U -shaped mounting bracket 502 of fixed mounting between the upper broken section 112 of soft pressing stand 102, the soft pressing to and fro air cylinder 501 of fixed mounting on U -shaped mounting bracket 502 and the air cylinder fixed disc 503 of fixed mounting in soft pressing to and fro air cylinder 501 piston rod end, U -shaped mounting bracket 502 is connected as a whole with the upper and lower broken soft pressing stand 102, the piston rod gap of soft pressing to and fro air cylinder 501 passes through the end plate of U -shaped mounting bracket 502, the soft pressing subassembly includes soft pressing base 504, soft pressing rubber capsule inner pressure plate 505, soft pressing rubber capsule 506 and M -shaped heating band 507, the corresponding side inner recess of soft pressing rubber capsule inner pressure plate 505 and the laying piece head mould, and the arc of inner recess is matched with the arc of laying piece head mould outer convex, the outer arc surface middle part of soft pressing base 504 is fixed with the corresponding side of air cylinder fixed disc 503, the soft pressing rubber capsule 506 is internally sleeved with the soft pressing rubber capsule inner pressure plate 505, and the soft pressing rubber capsule 506 is connected with the inner arc surface of soft pressing base 504 all around and is pressed tightly and sealed without leakage with screw, the liquid filling adjusting valve 508 of adjusting soft pressing rubber capsule 506 filling liquid amount is set up on the upper portion of soft pressing base 504, i. e. the one end of liquid filling adjusting valve 508 passes through soft pressing base 504 and is set up in soft pressing rubber capsule 506, the inner arc surface of soft pressing rubber capsule 506 is matched with the corresponding area of laying piece head mould 601, the M -shaped heating band 507 is adhered in the inner side of thin insulating cloth, when 48 volts direct current heating is connected for 1-3 seconds, the M -shaped heating band 507 instantaneous high temperature avoids scalding big piece of material 9, and the soft pressing big piece of material 9 time is 3-5 seconds, the area of soft pressing rubber capsule 506 is slightly larger than the area of each piece of big piece of material 9, and the four edges are slightly increased by 2-4mm, the inner arc surface of the 6 soft pressing rubber capsules corresponding to the 1-6 areas of laying piece head mould is different, and the 6 areas are divided when the laying mould is made, and then are processed, the guiding component includes the linear bearing B 509 of installing in the through -hole of one side end plate of U -shaped mounting bracket 502 and the guiding rod 510 of one side fixed with air cylinder fixed disc 503, the other end clearance of guiding rod 510 passes through the end plate of U -shaped mounting bracket 502 and linear bearing B 09, the model of soft pressing to and fro air cylinder 501 is SI40X300, and the model of linear bearing B 509 is LBBR12.

[0038] As attached Figure 5 、 6, 7, 12, 6 large pieces of tobacco sheet clamping and laying device 3 will be six large pieces of tobacco sheet 9 clamping and holding, through hot air softening tobacco sheet fully deformed without wrinkles, under the condition of regional first A, C, E downward pull to the position and keep, followed by B, D, F subsequently downward pull to the position and keep, laying work is completed, at this time the large tobacco sheet heating and soft pressing device 5 work begins, soft pressing piston rod of reciprocating cylinder 501 from the original site forward extension will be soft pressing rubber capsule 506 regional first A, C, E after B, D, F press on the large tobacco sheet on the laying head die 601, immediately power 1-3 seconds, soft pressing rubber capsule 506 front inner arc surface setting heating belt 507 heating, melting the lower layer of large tobacco sheet 9 glue layer and with the previous layer adhesion and compaction, after power off cooling 3-5 seconds, then soft pressing reciprocating cylinder 501 from the front position to the original site retraction, large tobacco sheet heating and soft pressing device 5 work is completed, so in addition to the center area of large tobacco sheet 9 the rest of the laying work of the tobacco sheet is completed, through the liquid regulating valve 508 control the amount of water injection into the soft pressing rubber capsule 508 can adjust the soft pressing rubber capsule 506 facing the laying head die 601 inner arc surface pressure contact area and pressure size, such as overfill, soft pressing when the soft pressing rubber capsule 506 four edge part will be significantly convex, easy to damage the soft pressing rubber capsule 506, overfill, soft pressing when the soft pressing rubber capsule 506 inner arc surface and laying head die 601 contact area will be smaller, the pressure will also be reduced.

[0039] As shown in the accompanying drawings Figure 8 , 9, 10, 13, the utility model discloses vacuum suction material sheet and even sheet rotating device 6 of piece head mould are shown in the figure, including piece head mould 601, the vacuum suction material sheet assembly of setting on piece head mould 601 and the even sheet rotating assembly of installing at the bottom of piece head mould 601, piece head mould 601 is the metal shell matched with the shape of helmet, and the inner cavity is hollow, and the wall thickness of piece head mould 601 is 20mm, the vacuum suction material sheet assembly includes the suction sheet area of setting in piece head mould 601 outer wall and the 6 material petal shape matching of big material sheet, three suction disc step mounting holes 620 of setting on each suction sheet area and the vacuum suction disc 602 of embedding on each suction disc step mounting hole 620, the suction sheet area includes a, b, c, d, e, f area, and three vacuum suction discs 602 in each area are arranged in triangular shape, the suction disc mouth of vacuum suction disc 602 is flush with piece head mould 601 outer wall, and the air inlet end of vacuum suction disc 602 is installed in the inner cavity of piece head mould 601 through nut, and the bottom disc 603 is fixedly installed on the bottom surface of piece head mould 601, and the column pipe 604 is installed on the bottom surface of bottom disc 603, and the column pipe 604 is communicated with the inner cavity of piece head mould 601 through the air hole in the middle part of bottom disc 603, and the through hole C 605 for the vacuum pipeline to enter the inner cavity of piece head mould 601 is arranged on the both sides of bottom disc 603, and the air inlet end of vacuum suction disc 602 is connected with the corresponding vacuum pipe in piece head mould 601, the step shaft 606 is fixedly installed at the bottom end of column pipe 604, and the pressure bead disc 610 is installed on the upper shaft section 607 of step shaft 606, the pressure bead disc mounting seat 611 and bearing mounting seat 612 are correspondingly installed on the top surface and bottom surface in the middle part of workbench plate 103, the pressure bead disc 610 is arranged in pressure bead disc mounting seat 611, and step shaft 606 passes through the middle hole 613 of workbench plate 103 and bearing mounting seat 612, and bearing B 614 is installed on the lower shaft section 608 of step shaft 606, the even sheet rotating assembly includes synchronous pulley A 615, synchronous pulley B 616, synchronous belt 617 and step motor 618, synchronous pulley A 615 is installed on the shaft head 609 of step shaft 606, the motor installation support 619 of lateral opening is fixedly installed on the bottom surface of one side of workbench plate 103, the step motor 618 is vertically fixedly installed on the bottom plate of motor installation support 619, and the transmission shaft clearance thereof passes through the bottom plate, the synchronous pulley B 616 is installed on the transmission shaft of step motor 618, the synchronous pulley B 616 is arranged on the inner side of motor installation support 619, and the synchronous belt 617 is installed on synchronous pulley A 615 and synchronous pulley B 616, the model of vacuum suction disc A 602 is dingling PA-10, the model of pressure bead disc 610 is F3-8M51110, the model of bearing B 614 is F6208-2Z, and the model of step motor 618 is STM57100.

[0040] As attached Figure 8 , 9, 10, 13, the vacuum suction sheet of the sheet laying head mold and the uniform sheet laying rotating device 6 work, a problem will appear, that is, the first large sheet laid by each helmet, after the middle part of the large sheet is pressed and adhered and the step-by-step sheet petals are heated and soft-pressed, the overlapping part between the six sheet petals of the large sheet is not well adhered, (the rest of the sheet and the metal sheet laying head mold cannot be adhered, which is the desired effect, otherwise, after the sheet laying is completed, the helmet semi-finished product cannot be separated from the metal sheet laying head mold and cannot be taken out) and often cannot tightly pack the sheet laying head mold, is relatively loose, causes the whole to be not tightly laid, the whole helmet is basically not up to the technical requirements after the whole helmet is laid, and is all waste products, after analysis, it is found that the sheet laying head mold 601 is of metal material, and the wall thickness size is large, the heat of the large sheet is quickly conducted and lost by the sheet laying head mold 601, the glue film on the large sheet cannot be well melted and adhered, even if the heating time is prolonged, the problem cannot be solved, the helmet is additionally provided with a heating device, and the whole sheet is adhered to the surface of the sheet laying head mold and cannot be taken out, and it is not good, finally, three small-diameter (diameter Φ10mm) silica gel vacuum suction pads A 602 (one upper and two lower) are arranged in the six regions corresponding to the first layer of large sheets of the sheet laying head mold, so that the vacuum suction of the 18 small vacuum suction pads A 602 on the large sheet 9 can keep the shape of the first layer of large sheets 9 after the sheet laying and heating softening tightly packed on the surface of the sheet laying head mold 601, and since one side of the large sheet 9 is coated with a gas-impermeable glue film, the first layer of large sheets 9 is effective, when the second layer of large sheets 9 is laid, since the first layer of large sheets 9 is perfectly laid, the first layer of large sheets 9 can be ideally adhered together, and the following layers of sheets can also be smoothly laid, in order to uniformly stagger the overlapping parts between the petals of the large sheet 9 and avoid overlapping, that is, to ensure that the number of layers and the thickness of the helmet are the same, the PLC control uniform sheet laying rotating assembly is used, the stepping motor 618 drives the sheet laying head mold through the synchronous belt 617, and the following cycle is performed when the stepping motor 618 lays 15 large sheets from the starting position (the starting position is positioned at 0°): 0°, left 30°, left 60°, 0°, right 30°, right 60°, 0°, left 30°, left 60°, 0°, right 30°, right 60°, 0°, left 30°, left 60°, the helmet sheet laying is automatically returned to 0° (the starting position), and the next cycle is performed (generally, the large sheet of the helmet is divided into six petals, and the overlapping amount between each sheet petal accounts for 1 / 3 of each sheet petal, and three large sheets are uniformly laid to lay a layer).

[0041] As shown in the accompanying drawings Figure 11As shown, the large and small material piece hot air blowing heating device 8 comprises a hot air blower 801, a hot air main pipe 805 installed on the air outlet of the hot air blower 801, a large material piece hot air blowing assembly and a small material piece hot air blowing assembly installed on the air outlet of the hot air main pipe 805, the large material piece hot air blowing assembly comprises a large material piece hot air distributor 806 installed on the air outlet of the hot air main pipe 805, an air valve A 807 installed on the shunt outlet of the large material piece hot air distributor 806, a heat-resistant hose 808 installed on the air outlet of the air valve A 807, and a flat conical large material piece hot air blowing nozzle 810 installed on the air outlet of the heat-resistant hose 808, the large material piece hot air blowing nozzle 810 is fixed on the two screw holes 303 in the middle of the special-shaped connecting plate 302 facing the laying head mold direction through the bolts on the clamp 809, and the large material piece hot air blowing nozzle 810 moves with the large material piece holding and laying device 3, so that the large material piece hot air blowing nozzle 810 is always below the large material piece during the laying process; the hot air distributor 806 is in the shape of a cone cylinder, and six shunt outlets are uniformly arranged at the top; the small material piece hot air blowing assembly comprises a bypass pipe 816 installed on the hot air main pipe 805, an air valve B 814 installed on the bypass pipe 816, an L-shaped small material piece hot air blowing nozzle 812 installed on the air outlet of the bypass pipe 816, and a nozzle telescopic assembly, the top of the bypass pipe 816 is inclined downward to be a straight pipe, the hot air outlet end of the L-shaped small material piece hot air blowing nozzle 812 is an upwardly bent arc, and the hot air inlet end gap of the L-shaped small material piece hot air blowing nozzle 812 is sleeved on the hot air outlet end of the straight pipe (the hot air inlet end of the L-shaped small material piece hot air blowing nozzle 812 can move in the gap in the straight pipe under external force, and the leaked hot air from the gap between the straight pipe and the L-shaped small material piece hot air blowing nozzle 812 can be ignored); the nozzle telescopic assembly comprises adjusting cylinders A 815 and adjusting cylinders B 817 installed on both sides of the straight pipe; the cylinder bodies of the adjusting cylinders A 815 and the adjusting cylinders B 817 are installed outside the straight pipe through the fixing seat 813, and the piston rod ends of the adjusting cylinders A 815 and the adjusting cylinders B 817 are installed on both sides of the L-shaped small material piece hot air blowing nozzle 812 through the blowing pipe connecting angle plates, respectively; the piston rod of the adjusting cylinders A 815 and the adjusting cylinders B 817 drives the L-shaped small material piece hot air blowing nozzle 812 to be sent out and withdrawn from the outlet end of the straight pipe.When the small sheet 10 is delivered directly above the laying head mold 601, the piston rods of adjusting cylinders A815 and B817 extend simultaneously, sending the air outlet of the L-shaped small sheet hot air nozzle 812 out to the lower layer of the small sheet adhesive film held by three vacuum suction cups B715 inside the bowl-shaped metal outer cover 716. Hot air is blown to heat and soften the film, facilitating the next step of sheet laying deformation. After heating for 3-5 seconds, the piston rods of adjusting cylinders A815 and B817 retract, returning the L-shaped small sheet hot air nozzle 812 to its original position within the straight pipe, making way for the lowering of the bowl-shaped metal outer cover 716 to lay the small sheet. The high-efficiency hot air blower 801 reduces heat loss. A hot air circulation pipe 803 is installed between the air inlet 802 and the air outlet of the hot air blower 801. An air valve C804 is installed on the hot air circulation pipe 803. When the hot air volume is low or during a short period when hot air is not being blown, the air valve C804 opens, returning some or all of the hot air to the air inlet of the hot air blower 801. This increases the inlet air temperature and reduces the work done by the hot air blower. The hot air blower will automatically adjust its heating power or stop heating. The regulating cylinders A815 and B817 are mentioned. The model of the hot air blower 801 is SHL3 / ZYD-030B.

[0042] As attached Figure 14 As shown, the fully automatic punch laying machine for bulletproof helmets of this utility model also includes an automatic weighing and feeding device 2 for large sheet materials installed on the left side of the load-bearing main beam 101 and the support frame 106, a large sheet material gripping and laying device 3 installed on the lower inner side of the flexible pressure column 102, and a small sheet material feeding, laying and pressing device 7 installed on the right side of the load-bearing main beam 101. There are 6 large sheet material gripping and laying devices 3, and the large sheet material heating and flexible pressure device 5 is located above the large sheet material gripping and laying devices 3.

[0043] As attached Figure 15 , 16As shown in the drawings, the large tablet automatic weighing feeding device 2 comprises a large tablet feeding reciprocating driving assembly installed on the left bottom surface of the load-bearing main beam 101, a large tablet feeding lifting assembly installed at the bottom of the large tablet feeding reciprocating driving assembly, and a material receiving and weighing assembly installed on the support frame 106. The large tablet feeding reciprocating driving assembly comprises a large tablet reciprocating cylinder 201 and a sliding block A 203 slidingly installed on and sliding along a sliding rail A 202. The sliding rail A 202 is fixedly installed on the bottom surface of the middle part of the load-bearing main beam 101. A U-shaped tail seat 204 is fixedly installed on the bottom surface of the left end of the load-bearing main beam 101, a right-angle connecting plate A 205 is fixedly installed on the bottom surface of the sliding block A 203, an ear seat A 206 is fixedly installed on the end part of the cylinder body of the large tablet reciprocating cylinder 201, the ear seat A 206 is hinged to the U-shaped tail seat A 204, the vertical side plate of the right-angle connecting plate A 205 is fixedly connected to the end of the piston rod of the large tablet reciprocating cylinder 201, and the model of the large tablet reciprocating cylinder 201 is SC40×1250S. The large tablet feeding lifting assembly comprises a vertically arranged feeding lifting cylinder 207. The end of the piston rod of the feeding lifting cylinder 207 is vertically downward, and a right-angle folding plate A 208 and a right-angle folding plate B 209 are fixedly installed on both sides of the end of the cylinder body of the feeding lifting cylinder 207. The top plates of the right-angle folding plate A 208 and the right-angle folding plate B 209 are respectively fixed to the bottom surface of the sliding block A 203. The piston rod of the large tablet reciprocating cylinder 201 is extended and retracted to push the sliding block A 203 to slide left and right and drive the feeding lifting cylinder 207 to run left and right, and the model of the feeding lifting cylinder 207 is TCL20×250S. The material receiving and weighing assembly comprises a feeding disc 210, a large tablet vacuum suction cup 211, a material receiving disc 212, and an electronic scale 213. The material receiving disc 212 is used for placing the large tablet 9. The top surface of the feeding disc 210 is fixed to the end of the piston rod of the feeding lifting cylinder 207, six mounting circular holes 214 are uniformly arranged along the edge of the feeding disc 210, and six large tablet vacuum suction cups 211 are correspondingly mounted in the mounting circular holes 214. The suction cup port of the large tablet vacuum suction cup 211 is downward, and the top end air inlet of the large tablet vacuum suction cup 211 is connected to the air source. A support table plate 215 is installed on the support frame 106, a shafted linear cylinder 216 is fixedly installed at each corner of the support table plate 215, a linear bearing A 217 corresponding to the shafted linear cylinder 216 is installed at each corner of the material receiving disc 212, and the shafted linear cylinder 216 is gap-inserted into the linear bearing A 217. The electronic scale 213 is placed in the middle part of the support table plate 215 and corresponds to the bottom surface of the material receiving disc 212. Material receiving disc lifting cylinders 218 are vertically fixedly installed on the left and right sides of the support table plate 215, and the two material receiving disc lifting cylinders 218 are symmetrically arranged at the center of the support table plate 215. A lifting disc 219 is installed at the top end of the piston rod of the material receiving disc lifting cylinder 218, and the lifting disc 219 lifts the material receiving disc 212. The piston rods of the two material receiving disc lifting cylinders 218 are lifted and lowered to drive the material receiving disc 212 to be placed on the electronic scale 213 or to be pushed away from the electronic scale 213.The lifting cylinder 218 for the material receiving tray is model MD20×30S; the vacuum suction cup 211 for the large material sheet is model Dingling PA-40; the linear bearing A217 is model LBBR8; and the electronic scale 213 is model Toledo MT1022.

[0044] As attached Figure 12 , 15 As shown in Figure 16, when the automatic weighing and feeding device 2 for large sheet materials is working, it first arranges each large sheet material 9, cuts off the loose threads, and separates any adhesions caused by cutting. Then, it aligns the openings of each large sheet material 9 and places it in the pre-marked position on the receiving tray 212. The electronic scale 213 is powered on and displays the weight values ​​of all large sheet materials 9. When the device is started, the two symmetrically distributed receiving tray lifting cylinders 218 rise from their original positions, pushing the receiving tray 212 away from the device. The electronic scale 213, the material lifting cylinder 207 drives the material picking disc 210 to descend from its original position, pressing the six large material piece vacuum suction cups 211 onto the six corresponding material pieces of the large material piece 9. Vacuum is then activated, and the six large material piece vacuum suction cups 211 hold the six material pieces of the large material piece 9. The material lifting cylinder 207 rises and stops at its original position. Immediately afterwards, the material receiving disc lifting cylinder 218 descends back to its original position, placing the material receiving disc 212 onto the electronic scale 213 for weighing. The measurement and feedback of the two values ​​before and after material handling are sent to the PLC for analysis and judgment. If the difference is less than or equal to the weight of a large material piece 9, it is determined that a large material piece 9 has been taken. Then, the piston rod of the large material piece reciprocating cylinder 201 extends from its original position, pushes the slider A203 to slide to the right, and drives the material handling lifting cylinder 207 to move to the right, sending the large material piece 9 to the center above the six large material piece holding and laying devices 3, completing the material handling and feeding work. If the difference is greater than the weight of a large material piece 9, it is determined that more than one large material piece 9 has been taken, and the previous material handling action is repeated. That is, the material receiving plate lifting cylinder 218 rises from its original position, pushes the material receiving plate 212 away from the electronic scale 213, and the material handling lifting cylinder 207 drives the material handling disc 210 to descend from its original position to the exit position. The large material piece vacuum suction cup 211 cuts and breaks the vacuum, puts the taken large material piece 9 back to its original position, and repeats the material handling process. This can ensure that each time a large material piece is sent out, it is one piece.

[0045] As attached Figure 17 , 18As shown, the large sheet clamping and laying device 3 comprises a vertical laying lifting cylinder 301, a special-shaped connecting step plate 302 fixedly installed at the top end of the laying lifting cylinder 301, and right and left clamping components with the same structure installed at both ends of the special-shaped connecting step plate 302. The model of the laying lifting cylinder 301 is TR20x125S. Two screw holes 303 for installing large sheet hot air outlets are arranged in the middle of the special-shaped connecting plate 302 and face the head mold direction. The steps at both sides of the special-shaped connecting step plate 302 are symmetrically arranged with the center of the top plate in the middle, and the right and left clamping components are symmetrically arranged with the center of the top plate in the middle of the special-shaped connecting step plate 302. A lower base mounting plate 304 is installed at one side of the bottom of the cylinder body of the laying lifting cylinder 301, and the base of the lower base mounting plate 304 is hingedly connected with a lower hinge seat 305 installed on the workbench plate 103. The inner side of the lower part of the flexible pressing column 102 is hingedly connected with the cylinder body end of the transversely arranged auxiliary laying cylinder 308 through a mounting base 307. An upper mounting plate 306 corresponding to the piston rod end of the auxiliary laying cylinder 308 is installed at the other side of the upper part of the cylinder body of the laying lifting cylinder 301. The piston rod end of the auxiliary laying cylinder 308 is hingedly connected with the outer side ear seat of the upper mounting plate 306 through a connecting ear plate 309. The model of the auxiliary laying cylinder 308 is MAL20x75SCA. The right clamping component comprises a downward right rotary rotating clamping cylinder 310, a right lower tooth-shaped plate 311, and a right upper tooth-shaped pressing plate 312. The corresponding end faces of the right lower tooth-shaped plate 311 and the right upper tooth-shaped pressing plate 312 are provided with meshing teeth for clamping large sheets. A circular through hole A 313 is arranged in the middle of the right lower tooth-shaped plate 311. Height adjusting sleeves A 314 and B 315 are arranged at both sides of the top surface of the cylinder body of the downward right rotary rotating clamping cylinder 310. Long rod bolts A 316 and B 317 installed at both sides of the right lower tooth-shaped plate 311 respectively pass through the height adjusting sleeves A 314 and B 315 and are screwed with both sides of the cylinder body of the downward right rotary rotating clamping cylinder 310 in gaps. The piston rod of the downward right rotary rotating clamping cylinder 310 passes through the circular through hole A 313 and is fixed with the right upper tooth-shaped pressing plate 312 in a gap. The downward movement of the piston rod of the downward right rotary rotating clamping cylinder 310 drives the right upper tooth-shaped pressing plate 312 to mesh with the right lower tooth-shaped plate 311.

[0046] The left gripper clamping assembly includes a left-hand rotary clamping cylinder 318, a lower left toothed plate 319, and an upper left toothed pressure plate 320; a circular through hole B321 is provided in the middle of the lower left toothed plate 319; height adjustment sleeves C322 and D323 are provided on both sides of the top surface of the cylinder body of the left-hand rotary clamping cylinder 318, and long bolts C324 and D325 installed on both sides of the lower left toothed plate 319 pass through the height adjustment sleeves C322 and D323 respectively. The cylinder body of the left-hand rotary clamping cylinder 318 is screwed to both sides. The piston rod of the left-hand rotary clamping cylinder 318 passes through the circular through hole B321 and is fixed to the upper left toothed pressure plate 320. The piston rod of the left-hand rotary clamping cylinder 318 moves downward to drive the upper left toothed pressure plate 320 to mesh with the lower left toothed plate 319. The model of the right-hand rotary clamping cylinder 310 is OCKR20×30S. The model of the left-hand rotary clamping cylinder 318 is OCKL20×30S.

[0047] As attached Figure 12 , 17 As shown in Figure 18, when the six large material sheet gripping and laying device 3 of this utility model is working, while picking up the large material sheet 9, the auxiliary laying cylinder 308 is in its original position, ensuring that the piston rod of the laying lifting cylinder 301 rises vertically to the exit position. Then, the piston rods of the right-hand rotary clamping cylinder 310 and the left-hand rotary clamping cylinder 318 are pressed down and extended from their original positions to the exit position, i.e., the highest position. The upper right toothed pressure plate 312 and the upper left toothed pressure plate 320 rotate 90° outward from the direction of the laying head mold, making room for the space blocked by the upper right toothed pressure plate 312 and the upper left toothed pressure plate 320, exposing the lower right toothed plate 311 and the lower left toothed plate 319, so that the corresponding material petals of the large material sheet 9 can fall smoothly onto the lower right toothed plate 311 and the lower left toothed plate 319. Then the upper right toothed pressure plate 312 and the upper left toothed plate 320 rotate 90° outward from their original positions. Each toothed pressure plate 320 rotates inward by 90° and then descends to press onto the lower right toothed plate 311 and the lower left toothed plate 319 respectively, gripping the corresponding petal of the large sheet 9. All six identical large sheet gripping and laying devices 3 are concentrically distributed towards the laying head die, each corresponding to one of the six petal areas of the large sheet 9. Each petal edge of each large sheet 9 corresponds to a large sheet gripping and laying device 3, i.e., the upper right toothed pressure plate 312 and the lower right toothed plate 311 mesh, and the upper left toothed pressure plate 320 and the lower left toothed plate 319 mesh. The two sets of meshing toothed plates grip one petal of the large sheet 9. Similarly, the toothed plates on the other large sheet gripping and laying devices 3 synchronously complete the same action to prevent any petal of the large sheet from detaching during the laying process, causing laying failure.

[0048] When the laying-up is in progress, the laying-up lifting cylinder 301 of the laying-up device 3 holds the 6 large pieces of material, and the auxiliary laying-up cylinder 308 slowly extends, forming an arc movement trajectory, and each piece of material is pulled down to the bottom along the laying-up head die contour, completing the ideal laying-up action. When working, the A, C, and E pieces of material are laid first, and then the B, D, and F pieces of material are laid, so that the pieces of material do not affect each other when laid and can be well ensured to be laid flat and wrinkle-free.

[0049] As shown in the accompanying drawings Figure 19 , 20,21, the small material sheet taking and feeding and sheet laying and pressing and sticking device 7 includes a taking and feeding reciprocating lifting assembly and a sheet laying and pressing and sticking assembly; a sliding block C707 is slidingly installed on the right side of the slide rail A211; the taking and feeding reciprocating lifting assembly includes a horizontally arranged taking and feeding reciprocating cylinder 701, a vertically arranged small material sheet lifting cylinder A702, a vertically arranged small material sheet lifting cylinder B703, and a vertically arranged vacuum taking and feeding lifting cylinder 704; the cylinder body end of the taking and feeding reciprocating cylinder 701 is hingedly connected to the cylinder mounting U-shaped seat 706 installed on the bottom surface of the right end of the load-bearing main beam 101 through a cylinder mounting lug 705, a door frame shaped frame 708 is fixedly installed on the bottom surface of the sliding block C707, and the piston rod end of the taking and feeding reciprocating cylinder 701 is fixedly installed on the bottom surface of the top plate of the door frame shaped frame 708 through a right-angle connecting plate 713; a supporting flat plate 709 is fixedly installed on the bottom end of the door frame shaped frame 708, cylinder rod through holes 710 are arranged on both ends of the supporting flat plate 709 outside the door frame shaped frame 708, the cylinder body ends of the small material sheet lifting cylinder A702 and the small material sheet lifting cylinder B703 are fixedly installed on the top surfaces of the corresponding ends of the supporting flat plate 709 and are arranged in parallel, and the piston rods of the small material sheet lifting cylinder A702 and the small material sheet lifting cylinder B703 are respectively gap-connected to both sides of the connecting flat plate 711 through the cylinder rod through holes 710; the vacuum taking and feeding lifting cylinder 704 is fixedly installed on the middle part of the connecting flat plate 711 through a mounting angle 712, the piston rod front end of the vacuum taking and feeding lifting cylinder 704 is connected to the sheet laying and pressing and sticking assembly through a through hole in the middle part of the connecting flat plate 711, and the upper cylinder body of the vacuum taking and feeding lifting cylinder 704 gap-connects through a square hole in the middle part of the supporting flat plate 709; the sheet laying and pressing and sticking assembly includes a vacuum suction disc mounting disc 714 fixedly installed on the piston rod end of the vacuum taking and feeding lifting cylinder 704, three taking material vacuum suction discs B715 annularly and uniformly fixedly installed on the vacuum suction disc mounting disc 714 with the center of the vacuum suction disc mounting disc 714 as an axis, a bowl-shaped metal outer cover 716 fixedly installed on the bottom of the connecting flat plate 711, and a bowl-shaped rubber air bag 717 arranged in the inner cavity of the bowl-shaped metal outer cover 716, the side wall interlayer of the bowl-shaped rubber air bag 717 is filled with air and sealed, an air inlet nozzle 718 is installed on the side wall of the bowl-shaped rubber air bag 717, the air inlet nozzle 718 connects the bowl-shaped rubber air bag 717 and the bowl-shaped metal outer cover 716 through a through hole D719 in the bowl-shaped metal outer cover 716, and an annular heating belt 720 (i.e., both ends downwardly lead out to be connected to a power source, not a complete annular shape) is arranged on the upper part of the inner cavity of the bowl-shaped rubber air bag 717; the model of the taking and feeding reciprocating cylinder 701 is SE40x1000S; the models of the small material sheet lifting cylinder A702 and the small material sheet lifting cylinder B703 are both SE50x350S; the model of the vacuum taking and feeding lifting cylinder 704 is TN20x200S; and the model of the taking material vacuum suction disc B715 is Dingling PA-20.

[0050] As shown in the accompanying drawings Figure 19 , 20,21、22, when the small piece of material taking material feeding and laying piece pressure and sticking device 7 works, small piece of material lifting cylinder A702 and small piece of material lifting cylinder B703 synchronous decline will bowl-shaped metal cover 716 to small piece of material platform 107 table, vacuum material taking cylinder 704 piston rod extension driven vacuum chuck mounting disc 714 down, vacuum chuck B715 to small piece of material 10, vacuum chuck B715 through the vacuum small piece of material 10 tightly after the vacuum material taking cylinder 704 piston rod retraction driven vacuum chuck mounting disc 714 up to the original position, small piece of material 10 outer diameter than the bowl-shaped rubber air bag 717 upper outer diameter, small piece of material 10 will bowl-shaped rubber air bag 717 upper end inner mouth seal, form a relatively closed space, can save enough hot air in bowl-shaped rubber air bag 717 space, will not make small piece of material 10 rapid cooling, so until the piece and power heating soft pressure small piece of material still maintain soft state, ensure smooth deformation. At the same time, small piece of material lifting cylinder A702 and small piece of material lifting cylinder B703 synchronous to the original position, feeding and taking cylinder 701 piston rod from the original position extension will small piece of material to the laying head die 601 directly above stop, L-shaped small piece of material hot nozzle 812 outlet to the small piece of material 10 directly below bowl-shaped metal cover 716, the valve 814 open, hot air blowing to the small piece of material 10 bottom surface, the glue layer, will be softened blowing hot air time 3-5 seconds, at the same time, the inner surface of bowl-shaped rubber air bag 717 is also heated, then the valve 814 is closed, L-shaped small piece of material hot nozzle 812 retraction to the original position, small piece of material lifting cylinder A702 and small piece of material lifting cylinder B703 synchronous decline to the middle stop, small piece of material 10 softened from laying head die 601 still a certain distance, vacuum material taking cylinder 704 from the original position down will small piece of material 10 to the laying head die 601 top, then cut off and destroy the vacuum to the vacuum pipeline fill compressed air 0.5-1 seconds up to the original position, small piece of material lifting cylinder A702 and small piece of material lifting cylinder B703 from the middle continue to decline to the out, the inner surface of bowl-shaped rubber air bag 717 contact laying head die 601 and cover and then from the inflation nozzle 718 to bowl-shaped rubber air bag 717 inside fill compressed air, bowl-shaped rubber air bag 717 outside bowl-shaped metal cover 716 block, can only expand inward, also will small piece of material 10 tightly to the laying head die 601, at the same time, the inner surface of bowl-shaped rubber air bag 717 set to annular heating belt 720 power 1-2 seconds, then power off cooling 3-5 seconds, then small piece of material lifting cylinder A702 and small piece of material lifting cylinder B703 up to the original position, feeding and taking cylinder 701 retraction to the original position, small piece of material 10 laying work is completed.

[0051] The following actual operation is described in brief the bulletproof helmet full automatic convex die laying machine working process (with a helmet piece for example):

[0052] As shown in the accompanying Figures 1-22As shown, before the full-automatic die sheet laying machine using a bulletproof helmet works, first connect the power supply and gas source, check whether each execution element cylinder is in the correct position, after the middle of the large sheet in the pressure and stick to keep the device 4 in the lifting pressure cylinder 412 piston rod end connected to the lower disc 413 set heating rod 414 temperature to 60 ℃ ~ 70 ℃, while the air heater 801 is also connected to the power supply to start working. When the large sheet blowing nozzle 810 and L-shaped small sheet hot air nozzle 812 outlet temperature reaches 60 ℃ ~ 70 ℃, during the feeding switch, the gas source is connected, the two material receiving disc lifting cylinders 218 will lift the material receiving disc 212, and the large and small sheets will be arranged neatly, and the positioning and sheet adhesive layer will be placed on the material receiving disc 212. The small sheet platform 107 is placed on the small sheet platform 107. After proper arrangement, press the feeding complete switch, the material receiving disc lifting cylinder 218 is lowered to place the material receiving disc 212 on the electronic scale 213, the PLC will automatically take value, press the start switch, the large sheet reciprocating cylinder 201 is stationary, the two material receiving disc lifting cylinders 218 are lifted synchronously, the material receiving disc 212 is lifted to the original position, the material receiving disc lifting cylinder 218 is lifted to the original position, the material receiving disc 212 is placed on the electronic scale 213, and the value is taken. After weighing, if more than one sheet is taken, the material taking lifting cylinder 207 is lowered from the original position, the taken large sheet is placed back on the material receiving disc 202, the vacuum is cut off and damaged, the material taking lifting cylinder 207 is raised to the original position, and the material is taken again. If only one sheet is taken, the large sheet reciprocating cylinder 201 is extended to the outlet from the original position, and the large sheet 9 is sent to the laying head die 601 directly above; At the same time, the auxiliary laying cylinder 308 is retracted to the original position, the laying cylinder 301 is raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotary clamping cylinders 310 and 318 are raised to the highest point from the original position, the right and left rotaryThe material taking lifting cylinder 207 lowers to send the large sheet 9 to the twelve lower tooth-shaped plates distributed in concentric circles, and covers the tooth-shaped part (the twelve lower tooth-shaped plates and the top of the sheet laying head die 601 are flush and in the same plane), and then the twelve upper tooth-shaped pressing plates each rotate 90° from the outside to the inside to return to the original position, the six lower right rotary clamping cylinders and the six lower left rotary clamping cylinders retract to tightly clamp the large sheet covered on the lower tooth-shaped plate, then the material taking suction cup cuts off and breaks the vacuum, the material taking lifting cylinder 207 rises to return to the original position, the large sheet reciprocating cylinder 201 retracts to the original position to perform the material taking work of the next large sheet, (the vacuum of the vacuum suction cup A 602 provided on the sheet laying head die 601 is maintained until the second large sheet is laid), the material taking is completed and maintained; The pressing and adhering reciprocating cylinder 402 of the large sheet middle pressing and adhering and maintaining device 4 extends from the original position to send the lower pressing disc 413 etc. to the upper side of the sheet laying head die 601, the lifting pressing cylinder 412 lowers from the original position to press the lower pressing disc 413 with a certain temperature through the heat-resistant silica gel disc 416 to press and maintain the middle part of the large sheet 9 to the middle part of the sheet laying head die 601, the counter-thrust cylinder 408 simultaneously rises from the original position to the lower surface of the slide rail B 404, so that the lifting pressing cylinder 412 is pressed on the sheet laying head die 601 by the reaction force, and the action force of the counter-thrust cylinder 408 is balanced to prevent the Z-shaped connecting plate 401 from deforming, and to ensure that there is enough pressure to press the middle part of the large sheet 9 of the sheet laying head die 601; The six air valves A 807 are opened, hot air is blown to heat the large sheet, after blowing hot air for 3-5 seconds, the A, C, E large sheet petals are laid according to the PLC program preset, the sheet laying lifting cylinder 301 retracts, the softened A, C, E petals are pulled down, and at the same time the auxiliary sheet laying cylinder 308 slowly extends from the original position, to form a curved motion trajectory together to tightly adhere the petals to the surface of the sheet laying head die 601, and then pulled down to the position and maintained, at this time the small vacuum suction cup A 602 provided on the A, C, E area of the sheet laying head die 601 is started to tightly suck the A, C, E petals laid in place, the corresponding large sheet hot air nozzle 810 stops blowing hot air, then the B, D, F large sheet laying lifting cylinder retracts, the softened B, D, F petals are pulled down, and at the same time the auxiliary sheet laying cylinder slowly extends from the original position, to form a curved motion trajectory together to tightly adhere the petals to the surface of the sheet laying head die 601, and then pulled down to the position and maintained, the small vacuum suction cup A 602 provided on the B, D, F area of the sheet laying head die 601 is started to tightly suck the B, D, F petals laid in place, at this time the corresponding large sheet hot air nozzle 810 stops blowing hot air;Then the six soft-pressing reciprocating cylinders 501 in the soft-pressing device 5 are heated, and the A, C, E number of material pieces corresponding to the soft-pressing rubber capsules 506 are pressed to the material pieces A, C, E number of areas which have been completed on the paving head die 601, and are pressed to keep, the heating belt 507 on the inner arc surface of the soft-pressing rubber capsule 506 is powered for 1-3 seconds and then cooled for 3-5 seconds, then the soft-pressing reciprocating cylinders 501 are retracted to the original position, and then the B, D, F number of material pieces corresponding to the soft-pressing reciprocating cylinders are pressed to the corresponding B, D, F number of areas and kept, powered for 1-3 seconds and then cooled for 3-5 seconds, then the soft-pressing reciprocating cylinders 501 are retracted to the original position, and the soft-pressing work of the large material piece 9 is completed; then all the upper tooth-shaped pressing plates arranged at the top of the paving lifting cylinder 301 are lifted and rotated outward to loosen the material piece which has been clamped, and the auxiliary paving cylinder 308 is retracted to the original position, the paving lifting cylinder 301 is pulled back to the original vertical position, the upper tooth-shaped pressing plate is rotated inward and pressed on the lower tooth-shaped plate, and the next large material piece clamping and paving work is prepared to be performed; at this time, if the large material piece paving work is performed, the paving head die 601 is rotated according to the set rotation rules 0°, left 30°, left 60°, 0°, right 30°, right 60°, 0°, left 30°, left 60°, 0°, right 30°, right 60°, 0°, left 30°, left 60°, that is, each large material piece 9 corresponds to a rotation angle, and then the above-mentioned actions are repeated, if the next paving is a small material piece, the paving head die 601 does not rotate, that is, the rotation angle corresponding to all the small material pieces is 0°.

[0053] When laying the small piece 10, the small piece lifting cylinders A 702 and B 703 in the small piece taking and laying press device 7 extend and descend in situ to the middle position to press the bowl-shaped metal cover 716 to the small piece 10 on the platform 107 table, stop and hold, then the vacuum taking cylinder 704 descends in situ to press the three vacuum suction cups 715 to the small piece 10, the vacuum suction small piece 10 is turned on and held, then the vacuum taking cylinder 704 rises to the original position, the small piece lifting cylinders A 702 and B 703 rise from the middle position to the original position, the taking feeding reciprocating cylinder 701 extends in situ to send the small piece 10 in the bowl-shaped rubber air bag 717 inner top to the laying head die 601 directly above, stop and hold, the adjusting cylinders A 815 and B 817 in the small and large piece hot air blowing heating device 8 push the L-shaped small piece hot air nozzle 812 outlet to be directly below the small piece in the bowl-shaped rubber air bag 717 inner top, open the air valve B 814, blow hot air at a temperature of 60-70 DEG C for 3-5 seconds, then the adjusting cylinders A 815 and B 817 retract to pull the L-shaped small piece blowing pipe 812 back to the original position and hold, the small piece lifting cylinders A 702 and B 703 descend to the middle position and hold, the vacuum taking lifting cylinder 704 descends in situ to lay the softened small piece 10 to the center of the laying head die 601, the vacuum of the taking vacuum suction cup B 715 is cut off and destroyed, the vacuum taking lifting cylinder 704 rises to the original position, the small piece lifting cylinders A 702 and B 703 continue to descend from the middle position, the inner surface of the bowl-shaped rubber air bag 717 presses the small piece 10, the bowl-shaped rubber air bag 717 is inflated by the inflation nozzle 718 to inflate compressed air with a pressure of 4-6 kg / cm 2 , the small piece 10 is tightly pressed on the top of the laying head die 601, power is turned on for 1-2 seconds, and cooled for 3-5 seconds, the small piece 10 is laid on the laying head die 601 without wrinkles, the bowl-shaped rubber air bag 717 is deflated, the small piece lifting cylinders A 702 and B 703 rise to the original position, the taking feeding reciprocating cylinder 701 retracts to the original position, and the next small piece laying is prepared.

[0054] The full-automatic laying device is adopted, the small pieces are effectively bonded, the small pieces are prevented from being deformed, the laying is uniform, the appearance of the bulletproof helmet after forming is beautiful, the product quality is high, the laying saves time and labor, the working efficiency is greatly improved, and the device is suitable for popularization and application in equipment and equipment enterprises.

Claims

1. A device for pressing, bonding, and rotating heating of bulletproof helmet sheet material, characterized in that, It includes a frame (1), a large sheet pressing and holding device (4) installed on the frame (1), six large sheet heating and pressing devices (5), a sheet spreading head mold vacuum suction sheet and uniform sheet spreading rotation device (6), and a large and small sheet hot air heating device (8); the sheet spreading head mold vacuum suction sheet and uniform sheet spreading rotation device (6) is installed in the middle of the frame (1), the six large sheet heating and pressing devices (5) are evenly installed in a ring at intervals on the outside of the sheet spreading head mold vacuum suction sheet and uniform sheet spreading rotation device (6), the large sheet pressing and holding device (4) is installed on the upper side of the middle of the frame (1) corresponding to the top of the sheet spreading head mold vacuum suction sheet and uniform sheet spreading rotation device (6), and the large and small sheet hot air heating device (8) is installed in the bottom and middle layers of the middle of the frame (1) and located below the sheet spreading head mold vacuum suction sheet and uniform sheet spreading rotation device (6).

2. The ballistic helmet sheet pressing and rotating heating device according to claim 1, characterized in that, The large sheet pressing and holding device (4) includes a pressing and sticking reciprocating assembly, a Z-shaped connecting plate (401) installed at the bottom of the pressing and sticking reciprocating assembly, a reverse pushing assembly installed on the top surface of the lower end of the Z-shaped connecting plate (401), and a lifting and heating assembly installed on the bottom surface of the lower end of the Z-shaped connecting plate (401). The pressing and bonding reciprocating assembly includes a pressing and bonding reciprocating cylinder (402) and a slider B (404) slidably mounted on a slide rail B (403); the slide rail B (403) is mounted on the bottom surface of the load-bearing support beam (105); the higher end of the Z-shaped connecting plate (401) is fixedly mounted on the bottom surface of the slider B (404); A U-shaped base (405) is fixedly installed on the bottom surface of the front end of the load-bearing support beam (105), a right-angle connecting plate B (406) is fixedly installed on the bottom surface of the slider B (404), and an ear seat B (407) is fixedly installed at the end of the cylinder body of the pressing and bonding reciprocating cylinder (402). The ear seat B (407) is hinged to the U-shaped base (405), and the piston rod end of the pressing and bonding reciprocating cylinder (402) is fixedly connected to the vertical side plate of the right-angle connecting plate B (406). The load-bearing support beam (105) is installed on the front side of the upper layer of the frame (1). The thrust reverse assembly includes a vertically mounted thrust reverse cylinder (408) and a top plate (409) fixedly mounted on the top of the piston rod of the thrust reverse cylinder (408). Upper right-angle folding plate A (410) and upper right-angle folding plate B (411) are fixedly mounted on both sides of the cylinder body of the thrust reverse cylinder (408). The bottom plates of upper right-angle folding plate A (410) and upper right-angle folding plate B (411) are fixedly mounted on the top surface of the lower end of the Z-shaped connecting plate (401). The piston rod of the thrust reverse cylinder (408) drives the top plate (409) to rise from its original position and reach the bottom surface of the slide rail B (403). The lifting and heating assembly includes a lifting cylinder (412), a pressing disc (413), a heating rod (414), a temperature control probe (415), and a heat-resistant silicone disc (416). Lower right-angle folding plate A (417) and lower right-angle folding plate B (418) are fixedly installed on the outer walls of both sides of the lifting cylinder (412). The top plates of the lower right-angle folding plate A (417) and lower right-angle folding plate B (418) are fixedly installed on the bottom surface of the lower end of the Z-shaped connecting plate (401). The piston rod at the bottom end of the lifting cylinder (412) is fixedly connected to the top surface of the lower pressing disc (413) through a hinge plate. The heating rod (414) and the temperature control probe (415) are respectively installed in the mounting holes on the side wall of the lower pressing disc (413) at intervals. The heat-resistant silicone disc (416) is bonded to the bottom surface of the lower pressing disc (413).

3. The ballistic helmet sheet pressing and rotating heating device according to claim 1, characterized in that, The large sheet heating and gentle pressing device (5) includes a gentle pressing reciprocating drive assembly, a gentle pressing assembly, and a guide assembly; The flexible pressure reciprocating drive assembly includes a U-shaped mounting bracket (502) fixedly installed between the upper disconnected sections (112) of the flexible pressure column (102), a flexible pressure reciprocating cylinder (501) fixedly installed on the U-shaped mounting bracket (502), and a cylinder fixing plate (503) fixedly installed on the piston rod end of the flexible pressure reciprocating cylinder (501); the piston rod of the flexible pressure reciprocating cylinder (501) passes through the end plate of the U-shaped mounting bracket (502); a workbench (103) is installed in the middle of the frame (1), and the flexible pressure columns (102) are evenly installed at intervals along the circumference of the workbench (103), and there are 6 flexible pressure columns (102); The flexible pressure assembly includes a flexible pressure base (504), a flexible pressure rubber bladder inner pressure plate (505), a flexible pressure rubber bladder (506), and an M-shaped heating belt (507). The outer arc surface of the flexible pressure base (504) is fixed to the corresponding side of the cylinder fixing plate (503). The flexible pressure rubber bladder (506) is fitted with the inner pressure plate (505). The inner pressure plate (505) and the flexible pressure rubber bladder (506) are concave to the corresponding side of the sheeting head mold. The concave arc matches the convex arc of the sheeting head mold. The flexible pressure rubber bladder (506) is sealed and fixed to the inner arc surface of the flexible pressure base (504) around the perimeter. A liquid filling regulating valve (508) for adjusting the liquid volume of the flexible pressure rubber bladder (506) is provided on the upper part of the flexible pressure base (504). A thin insulating cloth with adhesive on the inner side of the flexible pressure rubber bladder (506) and the inner arc surface of the M-shaped heating band (507) and the flexible pressure rubber bladder (506) are bonded together. The M-shaped heating band (507) is bonded to the inner side of the thin insulating cloth. The guide assembly includes a linear bearing B (509) installed in a through hole on one side of the end plate of the U-shaped mounting bracket (502) and a guide rod (510) with one end fixed to one side of the cylinder mounting plate (503). The other end of the guide rod (510) passes through the end plate of the U-shaped mounting bracket (502) and the linear bearing B (509) with a gap.

4. The ballistic helmet sheet pressing and rotating heating device according to claim 1, characterized in that, The sheeting head mold vacuum suction sheet and uniform sheeting rotation device (6) includes a sheeting head mold (601), a vacuum suction sheet assembly disposed on the sheeting head mold (601), and a uniform sheeting rotation assembly installed at the bottom of the sheeting head mold (601); the sheeting head mold (601) is a metal shell that matches the shape of a helmet, and its inner cavity is hollow; The vacuum suction sheet assembly includes suction areas that match the shape of six material petals on the outer wall of the sheeting head mold (601), three suction cup step mounting holes (620) on each suction area, and vacuum suction cups (602) embedded in each suction cup step mounting hole (620); the suction areas include areas a, b, c, d, e, and f, and the three vacuum suction cups (602) in each area are arranged in a triangular pattern; A base plate (603) is fixedly installed on the bottom surface of the slab laying head mold (601). A column tube (604) is installed on the bottom surface of the base plate (603). The column tube (604) communicates with the inner cavity of the slab laying head mold (601) through the vent hole in the middle of the base plate (603). Through holes C (605) for vacuum pipelines to enter the inner cavity of the slab laying head mold (601) are provided on both sides of the base plate (603). A stepped shaft (606) is fixedly installed at the bottom end of the column tube (604), and a pressure ball disc (610) is installed on the upper shaft section (607) of the stepped shaft (606); a pressure ball disc mounting seat (611) and a bearing mounting seat (612) are installed on the top and bottom surfaces of the middle part of the worktable (103), respectively. The pressure ball disc (610) is set in the pressure ball disc mounting seat (611), and the stepped shaft (606) passes through the middle hole (613) and the bearing mounting seat (612) of the worktable (103). A bearing B (614) is installed on the lower shaft section (608) of the stepped shaft (606). The uniformly laid sheet rotating assembly includes a synchronous pulley A (615), a synchronous pulley B (616), a synchronous belt (617), and a stepper motor (618). Synchronous pulley A (615) is mounted on the shaft head (609) of the stepped shaft (606). A motor mounting bracket (619) with a side opening is fixedly mounted on one side of the bottom surface of the worktable (103). The stepper motor (618) is vertically fixedly mounted on the base plate of the motor mounting bracket (619) and its transmission shaft passes through the base plate. Synchronous pulley B (616) is mounted on the transmission shaft of the stepper motor (618). Synchronous pulley B (616) is located inside the motor mounting bracket (619). The synchronous belt (617) is mounted on synchronous pulley A (615) and synchronous pulley B (616).

5. The ballistic helmet sheet pressing and rotating heating device according to claim 4, characterized in that, The stepper motor (618) is an STM57100.

6. The ballistic helmet sheet pressing and rotating heating device according to claim 1, characterized in that, The large and small material sheet hot air heating device (8) includes a hot air blower (801), a hot air main pipe (805) installed on the air outlet of the hot air blower (801), a large material sheet hot air blowing assembly and a small material sheet hot air blowing assembly installed on the air outlet of the hot air main pipe (805); The large sheet hot air blowing assembly includes a large sheet hot air distributor (806) installed on the outlet of the hot air main pipe (805), an air valve A (807) installed at the branch outlet of the large sheet hot air distributor (806), a heat-resistant hose (808) installed at the outlet of the air valve A (807), and a flat conical large sheet hot air nozzle (810) installed at the outlet of the heat-resistant hose (808); the heat-resistant hose (808) passes through the elongated hole (104); the large sheet hot air nozzle (810) is fixed to the irregular connecting plate by bolts on the clamp (809); the hot air distributor (806) is conical in shape, with 6 branch outlets evenly spaced at the top; The small material sheet hot air blowing assembly includes a bypass pipe (816) installed on the hot air main pipe (805), an air valve B (814) installed on the bypass pipe (816), an L-shaped small material sheet hot air nozzle (812) installed at the air outlet of the bypass pipe (816), and a nozzle telescopic assembly. The top of the bypass pipe (816) is inclined downward to form a straight pipe, and the inlet end of the L-shaped small material hot air nozzle (812) is fitted into the outlet end of the straight pipe with a gap. The air nozzle telescopic assembly includes an adjusting cylinder A (815) and an adjusting cylinder B (817) installed on both sides of the straight pipe; the cylinder bodies of the adjusting cylinder A (815) and the adjusting cylinder B (817) are installed on the outside of the straight pipe through a fixed seat (813), and the piston rods of the adjusting cylinder A (815) and the adjusting cylinder B (817) are respectively installed on both sides of the L-shaped small material sheet hot air nozzle (812) through the air pipe connecting angle plate; The piston rods of regulating cylinder A (815) and regulating cylinder B (817) extend and retract, driving the L-shaped small material hot air nozzle (812) to be sent out and retracted from the straight pipe outlet end; A hot air circulation pipe (803) is installed between the air inlet (802) and the air outlet of the hot air blower (801), and an air valve C (804) is installed on the hot air circulation pipe (803).

7. The ballistic helmet sheet pressing and rotating heating device according to claim 6, characterized in that, The hot air blower (801) is model SHL3 / ZYD-030B.

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