Small sheet heating device for bulletproof helmet

Abstract

The invention relates to a small sheet laying and heating device for bulletproof helmets, which comprises a frame, a sheet laying head mold vacuum suction and uniform sheet laying rotation device, a small sheet feeding and sheet laying pressing and bonding device, and a large and small sheet hot air blowing and heating device; the small sheet feeding and sheet laying pressing and bonding device is installed on the right side of the load-bearing main beam; the small sheet feeding and sheet laying pressing and bonding device stores sufficient hot air in the space so that the small sheet cannot be quickly cooled down, and the small sheet remains soft until the sheet is laid and powered on for heating and soft pressing, thereby ensuring smooth deformation; the large and small sheet hot air blowing and heating device softens the glue layer of the sheet coated with a glue layer as much as possible during sheet laying, so that the sheet can be fully deformed on the surface of the sheet laying head mold during sheet laying, and the sheet is tightly wrapped around the sheet laying head mold to avoid gaps between multiple layers of the sheet and reduce the air trapped in the gaps. The sheet laying is uniform, the bulletproof helmet after forming is beautiful in appearance, the product quality is high, the sheet laying is time-saving and labor-saving, and the work efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to a small sheet paving and heating device for a bulletproof helmet, belonging to the technical field of production and processing of equipment and tool-type bulletproof products. Background Art

[0002] At present, the production of bulletproof helmets consists of laying n large pieces (i.e., whole pieces) and m small pieces (elliptical pieces added to strengthen the top of the helmet) on a laying head mold; both large and small pieces are made of rubber-impregnated aramid cloth cut to size, and each large piece has six evenly spaced slits, i.e., it is divided into 6 petals, and the whole is in the shape of a fan blade. During the production process, several large pieces are usually laid on the laying head mold first. In order to make up for the accumulated thickness difference between the top and the lower part of the head, a small piece needs to be laid on the top of the head, and the large and small pieces are laid back and forth. It should be noted that the last two layers must be large pieces to prevent the imprint of small pieces on the inner and outer surfaces of the helmet.

[0003] In the traditional production process of bulletproof helmets, the laying process has always been done manually. Generally, the operator pulls the sheet with one hand and heats the sheet with a hot air gun with the other hand, and then lays the sheet one by one. If you are not careful at work, you will burn your fingers or damage the sheet. Each operator has a different technique, and the laid helmets are of various types. Some layers of sheet are too loose, some are not heated by hot air for enough time, and the sheets are not effectively bonded, and some are heated by hot air for a long time, causing the glue layer to fail, which greatly reduces the bulletproof performance and appearance quality of the helmet, and results in a large number of defective bulletproof helmets. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a small sheet heating device for bulletproof helmets, which can automatically take and deliver small sheets, soften the sheet glue layer, fully deform the sheet head mold surface and tightly wrap the sheet head mold during sheet laying.

[0005] The present invention adopts the following technical solution:

[0006] The present invention comprises a frame, a sheet laying head mold vacuum suction and uniform sheet laying rotation device, a small sheet feeding and sheet laying pressing and bonding device, and a large and small sheet hot air blowing and heating device; the frame comprises a horizontally arranged frame body, a load-bearing main beam horizontally installed on the upper layer of the frame body, a support frame and a small sheet platform correspondingly installed in the middle layer on the left and right sides of the frame body, a head mold mounting frame installed between the support frame and the small sheet platform, and a load-bearing support beam installed on the upper front side of the head mold mounting frame, and a polygonal work table is installed in the middle of the head mold mounting frame; 6 long holes are arranged at intervals along the circumferential surface of the work table; the sheet laying head mold vacuum suction and uniform sheet laying rotation device are installed on the work table plate, the large and small sheet hot air blowing and heating device are installed below the work table plate, and the small sheet feeding and sheet laying pressing and bonding device are installed on the right side of the load-bearing main beam.

[0007] The positive effects of the present invention are as follows: the vacuum suction of the sheet-laying head mold and the uniform sheet-laying rotating device of the present invention can maintain the shape of the first layer of large sheet after heating and softening during sheet laying and tightly wrap it on the surface of the sheet-laying head mold, and the stepper motor drives the sheet-laying head mold to rotate through the synchronous belt, which can evenly stagger the overlapping parts between the petals of the large sheet, ensuring that the number of sheet layers and thickness of each cross-section of the helmet are the same. The two small sheet lifting cylinders of the small sheet picking, feeding and sheet spreading and pressing device of the present invention descend simultaneously to press the bowl-shaped metal cover onto the small sheet platform platen, the vacuum picking cylinder descends to press the vacuum suction cup B onto the small sheet, and the small sheet is firmly sucked by the vacuum and then rises back to its original position. At the same time, the two small sheet lifting cylinders rise to their original positions at the same time, the piston rod of the picking and feeding reciprocating cylinder extends from the rear position to send the small sheet to the sheet spreading head mold vacuum suction sheet and the sheet spreading head mold of the uniform sheet spreading rotating device and stops there. The outlet of the L-shaped small sheet hot air nozzle extends to the bottom of the small sheet in the bowl-shaped metal cover. At this time, the air valve B opens, and hot air blows to the rubber layer on the bottom of the small sheet to soften it (blowing hot air for 2-4 seconds). At the same time, the inner surface of the bowl-shaped rubber airbag is also heated, and then the air valve B closes the L-shaped small sheet hot air nozzle and retracts it to its original position. The small sheet lifting cylinder descends to the middle position and stops. At this time, the softened small sheet is still a certain distance away from the sheet spreading head mold, and the vacuum The material-taking cylinder descends from its original position to place the small material piece on the sheet-laying head mold, then cuts off and destroys the vacuum (fills the vacuum pipeline with compressed air for 0.5-1 second) and rises back to its original position. The small material lifting cylinder continues to descend from the middle position to the midpoint of the exit position, so that the inner surface of the bowl-shaped rubber airbag contacts the sheet-laying head mold and wraps it, and then compressed air is filled into the bowl-shaped rubber airbag from the inflation nozzle. The bowl-shaped rubber airbag is blocked by a metal cover on the outside and can only expand inward, thus pressing the small material piece tightly against the sheet-laying head mold. At the same time, the annular heating belt arranged on the inner surface of the bowl-shaped rubber airbag is energized for 1-2 seconds and cooled for 3-5 seconds to complete the sheet-laying of the small material piece. Since the small material piece rises to its original position after vacuum material taking, the inner mouth of the bowl-shaped rubber airbag is directly sealed to form a relatively closed space, which can store sufficient hot air in the space and cannot quickly cool down the small material piece. Therefore, the small material piece remains soft until the sheet is laid and energized for heating and pressing, thereby ensuring smooth deformation.

[0008] The hot air heating device for blowing hot air to large and small sheets of the present invention is used to soften the glue layer of the large and small sheets coated with glue layer as much as possible when laying the sheets, so that the sheets can be fully deformed on the surface of the laying head mold when laying the sheets (that is, the fibers of the sheets can fully slide), and the large and small sheets are tightly wrapped around the laying head mold to avoid gaps between multiple layers of the sheets, and to minimize the air trapped in the gaps. During pressing, a small amount of air in the remaining tiny gaps can be squeezed out smoothly, and the bulletproof helmet will not produce defects such as bubbles. The hot air outlet temperature is 120°C to 160°C, and the optimal temperature is adjusted according to the environment and season.

[0009] By adopting the full-automatic sheet laying of the present invention, the sheets are effectively bonded to each other, deformation of the sheets is prevented, the sheets are laid evenly, the bulletproof helmet after forming has a beautiful appearance, the product quality is high, the sheet laying saves time and labor, and the work efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Attached Figure 1 It is a schematic diagram of the structure of the present invention;

[0011] Attached Figure 2 It is a schematic diagram of the frame structure of the present invention;

[0012] Attached Figure 3 It is a schematic diagram of the structure of the vacuum suction sheet of the sheet laying head mold and the uniform sheet laying rotating device of the present invention;

[0013] Attached Figure 4 It is a schematic diagram of the assembly structure of the parts of the vacuum suction sheet of the sheet laying head mold and the uniform sheet laying rotating device of the present invention;

[0014] Attached Figure 5 For attachment Figure 3 A schematic diagram of the enlarged cross-sectional structure of part A;

[0015] Attached Figure 6 It is a schematic diagram of the structure of the device for taking, feeding, laying and pressing small pieces of the present invention;

[0016] Attached Figure 7 It is a schematic diagram of the assembly structure of the parts of the device for taking and feeding small pieces and laying and pressing and gluing the pieces of the present invention;

[0017] Attached Figure 8 This is a schematic diagram of the installation structure of the annular heating belt of the present invention;

[0018] Attached Fig. 9 It is a schematic diagram of the assembly of parts of the hot air heating device for large and small sheets of the present invention;

[0019] Attached Fig.10 A schematic diagram of the structure of a large sheet of the present invention;

[0020] Attached Fig.11 This is a schematic diagram of the top view of the structure of the sheet laying head mold of the present invention;

[0021] Attached Fig.12 This is a schematic diagram of the structure of a small piece of the present invention;

[0022] Attached Fig.13 It is a schematic diagram of the structure of the large-sheet automatic weighing and feeding device, the large-sheet gripping and clamping device, the large-sheet middle pressing and holding device and the large-sheet heating and soft pressing device installed on the frame;

[0023] Attached Fig.14 This is a schematic diagram of the structure of the automatic weighing and feeding device for large sheets;

[0024] Attached Fig.15This is a schematic diagram of the assembly structure of the parts of the automatic weighing and feeding device for large pieces;

[0025] Attached Fig.16 This is a schematic diagram of the structure of a device for holding and laying large pieces of material;

[0026] Attached Fig.17 This is a schematic diagram of the assembly structure of the parts of the large-sheet gripping and laying device;

[0027] Attached Fig.18 This is a schematic diagram of the structure of the device for pressing and holding the middle part of a large sheet;

[0028] Attached Fig.19 This is a schematic diagram of the assembly structure of the parts of the large sheet middle pressing and holding device;

[0029] Attached Fig. 20 This is a schematic diagram of the structure of a heating and soft pressing device for large sheets;

[0030] Attached Fig.21 This is a schematic diagram of the assembly structure of the parts of the large-sheet heating and soft-pressing device;

[0031] Attached Fig. 22 This is a schematic diagram of the M-shaped heating belt structure. DETAILED DESCRIPTION

[0032] As attached Figure 1 , 2 As shown, the small sheet paving and heating device for bulletproof helmets of the present invention comprises a frame 1, a paving head mold vacuum suction and uniform paving rotation device 6, a small sheet feeding and paving pressing and bonding device 7, and a large and small sheet hot air blowing heating device 8; the frame 1 of the present invention comprises a horizontally arranged frame 109, a load-bearing main beam 101 horizontally installed on the upper layer of the frame 109, a support frame 106 and a small sheet platform 107 correspondingly installed in the middle layer on the left and right sides of the frame 109, a head mold mounting frame 108 installed between the support frame 106 and the small sheet platform 107, and a load-bearing support beam 105 installed on the upper front side of the head mold mounting frame 108, the load-bearing support beam 105 is perpendicular to the load-bearing main beam 101, and is arranged on the head mold mounting frame 108. A polygonal workbench 103 is installed in the middle of 8; 6 long holes 104 are arranged at intervals along the circumference of the workbench 103, and 6 soft pressure columns 102 are evenly installed along the circumference of the workbench 103 outside the 6 long holes 104; an annular fixing plate 110 is fixedly installed along the top of the 6 soft pressure columns 102, and a supporting column 111 is fixedly installed between the 6 soft pressure columns 102, and a disconnecting section 112 is arranged on the upper part of the soft pressure column 102; a vacuum suction material suction device and a uniform paving rotation device 6 are installed on the workbench 103, and the large and small material sheets are installed under the workbench 103, and the small material sheet feeding and paving pressing and bonding device 7 are installed on the right side of the load-bearing main beam 101.

[0033] As attached Figure 3, 4 As shown in Figure 5, the sheet laying head mold vacuum suction sheet and uniform sheet laying rotation device 6 of the present invention include a sheet laying head mold 601, a vacuum suction sheet assembly arranged on the sheet laying head mold 601, and a uniform sheet laying rotation assembly installed at the bottom of the sheet laying head mold 601; the sheet laying head mold 601 is a metal shell matching the shape of the helmet, its inner cavity is hollow, and the wall thickness of the sheet laying head mold 601 is 20mm; the vacuum suction sheet assembly includes a suction sheet area arranged on the outer wall of the sheet laying head mold 601 and matching the shape of 6 petals of the large sheet, three suction cup step mounting holes 620 arranged on each suction sheet area, and a vacuum suction cup 602 embedded in each suction cup step mounting hole 620, and the suction sheet area includes a, b, In the zones c, d, e and f, the three vacuum suction cups 602 in each zone are arranged in a triangular shape; the suction cup opening of the vacuum suction cup 602 is flush with the outer wall of the sheet-laying head mold 601, the air inlet end of the vacuum suction cup 602 is installed in the inner cavity of the sheet-laying head mold 601 through a nut, the chassis 603 is fixedly installed on the bottom surface of the sheet-laying head mold 601, the column tube 604 is installed on the bottom surface of the chassis 603, the column tube 604 is connected with the inner cavity of the sheet-laying head mold 601 through the vent hole in the middle of the chassis 603, through holes C605 for the vacuum pipeline to enter the inner cavity of the sheet-laying head mold 601 are arranged on both sides of the chassis 603, the air inlet end of the vacuum suction cup 602 is connected with the corresponding vacuum tube in the sheet-laying head mold 601; a stepped shaft is fixedly installed at the bottom end of the column tube 604 606, a pressure bead plate 610 is installed on the upper shaft section 607 of the stepped shaft 606; a pressure bead plate mounting seat 611 and a bearing mounting seat 612 are correspondingly installed on the top and bottom surfaces in the middle of the workbench 103, the pressure bead plate 610 is arranged in the pressure bead plate mounting seat 611, the stepped shaft 606 passes through the middle hole 613 and the bearing mounting seat 612 of the workbench 103, and a bearing B614 is installed on the lower shaft section 608 of the stepped shaft 606; the uniform paving rotation assembly includes a synchronous pulley A615, a synchronous pulley B616, a synchronous belt 617 and a stepper motor 618; the synchronous pulley A615 is installed on the shaft head 609 of the stepped shaft 606, and is fixed on one side of the bottom surface of the workbench 103 A motor mounting bracket 619 with a lateral opening is fixedly installed, the stepper motor 618 is vertically fixedly installed on the bottom plate of the motor mounting bracket 619 and its transmission shaft clearance passes through the bottom plate, the synchronous pulley B616 is installed on the transmission shaft of the stepper motor 618, the synchronous pulley B616 is arranged on the inner side of the motor mounting bracket 619, and the synchronous belt 617 is installed on the synchronous pulley A615 and the synchronous pulley B616; the model of the vacuum suction cup A602 is Dingling PA-10; the model of the pressure bead plate 610 is F3-8M51110; the model of the bearing B614 is F6208-2Z; the model of the stepper motor 618 is STM57100.

[0034] As attached Figure 3 , 4As shown in Figures 5 and 10, when the vacuum suction sheet of the sheet laying head mold and the uniform sheet laying rotating device 6 of the present invention are working, a problem may occur, that is, the first large sheet laid on each helmet, after the middle part of the large sheet is pressed and bonded, the sheet petals are laid step by step, and the sheet petals are heated and soft pressed, the overlapping parts of the six sheet petals are not well adhered (the rest of the sheet and the metal sheet laying head mold cannot be adhered, which is a desired effect. Otherwise, after the sheet laying is completed, the semi-finished helmet cannot be separated from the metal sheet laying head mold and cannot be taken down), and the sheet laying head mold is often not tightly wrapped and is relatively loose, resulting in the subsequent layers not being laid tightly, and the entire helmet is basically not laid after laying. It can't meet the technical requirements, but it's all waste. After analysis, it was found that the sheet head mold 601 is made of metal and has a large wall thickness. The heat of heating and bonding the large sheet is quickly conducted and lost by the sheet head mold 601, causing the adhesive film on the large sheet to not melt and stick well. Even prolonging the heating time can't solve the problem. The helmet is equipped with a heating device, but it causes the entire sheet to stick to the surface of the sheet head mold and cannot be removed. Finally, 3 small diameter (diameter about Φ10mm) silicone vacuum sealers are set in each of the 6 areas corresponding to the sheet head mold and the first layer of large sheet. Suction cups A602 (1 on the top, 2 on the bottom), through the vacuum suction of 18 small vacuum cups A602 on the large sheet 9, can keep the shape of the first layer of large sheet 9 after heating and softening, tightly wrapped on the surface of the sheet laying head mold 601. Since one side of the large sheet 9 is coated with an airtight adhesive film, it is only effective for laying the first layer of large sheet 9. When laying the second layer of large sheet 9, due to the perfect base of the first layer of large sheet 9, it will be very smooth and ideally bonded to the first layer of large sheet 9, and the subsequent layers of sheets can also be laid smoothly. In order to be able to lay the large sheet 9 The overlapping parts between the petals are evenly staggered to avoid overlapping, that is to say, to ensure that the number of layers and thickness of each section of the helmet are the same. The uniform paving rotation assembly is controlled by PLC, and the stepper motor 618 drives the paving head mold from the starting position (the starting position is positioned at 0°) through the synchronous belt 617. When paving 15 large pieces of material, the stepper motor 618 performs the following cycle: 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°, and the helmet automatically returns to 0° after paving is completed.

[0035] (Starting position), and proceed to the next cycle (the large sheet of the helmet generally designed is divided into 6 petals, and the overlap between each petal accounts for 1 / 3 of each petal. A maximum of three large sheets can be evenly laid to complete a layer).

[0036] As attached Figure 6 , 7As shown in , 8, the small sheet picking up and feeding and sheet laying and pressing and gluing device 7 of the present invention includes a picking up and feeding reciprocating lifting component and a sheet laying and pressing and gluing component; a slider C707 is slidably installed on the right side of the slide rail A211; the picking up and feeding reciprocating lifting component includes a transversely arranged picking up and feeding reciprocating cylinder 701, a vertically arranged small sheet lifting cylinder A702, a vertically arranged small sheet lifting cylinder B703 and a vertically arranged vacuum picking up and lifting cylinder 704; the cylinder body end of the picking up and feeding reciprocating cylinder 701 is hinged 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 the cylinder mounting ear seat 705, and a door frame frame 708 is fixedly installed on the bottom surface of the slider C707, and the piston rod end of the picking up and feeding reciprocating cylinder 701 is fixedly installed on the bottom surface of the top plate of the door frame frame 708 through a right-angle connecting plate 713; on the door A supporting plate 709 is fixedly installed at the bottom end of the frame 708, and cylinder rod through holes 710 are set at both ends of the supporting plate 709 outside the door frame 708. The cylinder ends of the small sheet lifting cylinder A702 and the small sheet lifting cylinder B703 are respectively fixedly installed on the top surfaces of the corresponding ends of the supporting plate 709 and are arranged in parallel. The piston rods of the small sheet lifting cylinder A702 and the small sheet lifting cylinder B703 respectively pass through the cylinder rod through holes 710 and are fixed on both sides of the connecting plate 711; the vacuum material lifting cylinder 704 is fixed to the middle of the connecting plate 711 by installing an angle piece 712, and the front end of the piston rod of the vacuum material lifting cylinder 704 passes through the through hole in the middle of the connecting plate 711 to be connected to the sheet laying pressure bonding assembly, and the upper cylinder body of the vacuum material lifting cylinder 704 passes through the square hole in the middle of the supporting plate 709;

[0037] The sheet laying and pressing assembly comprises a vacuum suction cup mounting disc 714 fixedly mounted on the end of the piston rod of the vacuum material taking and lifting cylinder 704, three material taking vacuum suction cups B715 evenly distributed and fixedly mounted on the vacuum suction cup mounting disc 714 with the center of the vacuum suction cup mounting disc 714 as the axis, a bowl-shaped metal cover 716 fixedly mounted on the bottom of the connecting plate 711, and a bowl-shaped rubber airbag 717 arranged in the inner cavity of the bowl-shaped metal cover 716, the side wall interlayer of the bowl-shaped rubber airbag 717 is inflated and sealed, and an inflation nozzle 718 is installed on the side wall of the bowl-shaped rubber airbag 717, and the inflation nozzle 718 passes through the bowl-shaped metal cover 716. The through hole D719 on the outer cover 716 connects the bowl-shaped rubber airbag 717 to the bowl-shaped metal outer cover 716, and an annular heating belt 720 is arranged on the upper part of the inner cavity of the bowl-shaped rubber airbag 717 (that is, both ends are led downward to connect to the power supply, and it is not a complete ring); the model of the reciprocating cylinder 701 for taking and feeding is SE40×1000S; the model of the small sheet lifting cylinder A702 and the small sheet lifting cylinder B703 are both SE50×350S; the model of the vacuum material taking lifting cylinder 704 is TN20×200S; the model of the material taking vacuum suction cup B715 is Dingling PA-20.

[0038] As attached Figure 6 ,7 As shown in , 8 and 12, when the small sheet feeding and laying and pressing device 7 of the present invention is working, the small sheet lifting cylinder A702 and the small sheet lifting cylinder B703 are synchronously lowered to press the bowl-shaped metal cover 716 onto the small sheet platform 107, the piston rod of the vacuum feeding cylinder 704 is extended to drive the vacuum suction cup mounting plate 714 to descend, and the vacuum suction cup B715 is pressed onto the small sheet 10, and the vacuum suction cup B715 sucks the small sheet 10 firmly through vacuum and then takes out the material by vacuum The piston rod of the cylinder 704 retracts to drive the vacuum suction cup mounting plate 714 to rise back to its original position. The outer diameter of the small piece 10 is larger than the outer diameter of the upper opening of the bowl-shaped rubber airbag 717. The small piece 10 seals the inner opening of the upper end of the bowl-shaped rubber airbag 717 to form a relatively closed space, which can store sufficient hot air in the space of the bowl-shaped rubber airbag 717 and will not cause the small piece 10 to cool down rapidly. Therefore, the small piece remains soft until the piece is laid and powered on for heating and soft pressing, thereby ensuring smooth deformation. At the same time, the small sheet lifting cylinder A702 and the small sheet lifting cylinder B703 rise to their original positions synchronously, the piston rod of the feeding and reciprocating cylinder 701 extends from its original position to send the small sheet to the top of the sheet paving head mold 601 and stops, the outlet of the L-shaped small sheet hot air nozzle 812 extends to the bottom of the small sheet 10 in the bowl-shaped metal cover 716, at this time, the air valve 814 opens, and hot air blows to the rubber layer on the bottom of the small sheet 10 to soften it and blow hot air for 3-5 seconds, and at the same time the inner surface of the bowl-shaped rubber airbag 717 is also heated, and then the air valve 814 is closed, the L-shaped small sheet hot air nozzle 812 retracts to its original position, the small sheet lifting cylinder A702 and the small sheet lifting cylinder B703 synchronously descend to the middle position and stop, the softened small sheet 10 is still a certain distance away from the sheet paving head mold 601, and the vacuum feeding cylinder 704 descends from its original position to press the small sheet 10 onto the sheet paving head mold 601. At the top, the vacuum is then cut off and destroyed, and compressed air is filled into the vacuum pipeline for 0.5-1 second to rise back to the original position. The small sheet lifting cylinder A702 and the small sheet lifting cylinder B703 continue to descend from the middle position to the out position, so that the inner surface of the bowl-shaped rubber airbag 717 contacts the sheet-laying head mold 601 and wraps it, and then compressed air is filled into the bowl-shaped rubber airbag 717 from the inflation nozzle 718. The bowl-shaped rubber airbag 717 is blocked by a bowl-shaped metal cover 716 on the outside and can only expand inward, thus pressing the small sheet 10 tightly against the sheet-laying head mold 601. At the same time, the annular heating belt 720 set on the inner surface of the bowl-shaped rubber airbag 717 is energized for 1-2 seconds, and then the power is turned off and cooled for 3-5 seconds. Then the small sheet lifting cylinder A702 and the small sheet lifting cylinder B703 rise back to their original positions, and the feeding and reciprocating cylinder 701 retracts to its original position, and the sheet-laying work of the small sheet 10 is completed.

[0039] As attached Fig. 9As shown, the hot air heating device 8 for blowing hot air to large and small pieces of the present invention comprises a hot air blower 801, a hot air main pipe 805 installed on the air outlet of the hot air blower 801, a hot air blowing component for large pieces and a hot air blowing component for small pieces installed at the air outlet of the hot air main pipe 805; the hot air blowing component for large pieces comprises a hot air distributor 806 for large pieces installed at the air outlet of the hot air main pipe 805, an air valve A807 installed at the branch outlet of the hot air distributor 806 for large pieces, a heat-resistant hose 808 installed at the air outlet of the air valve A807, and an oblate round pipe installed at the air outlet of the heat-resistant hose 808 The hot air blowing nozzle 810 for the large material sheet is provided; the hot air blowing nozzle 810 for the large material sheet is fixed to two screw holes 303 arranged in the middle of the special-shaped connecting plate 302 facing the sheet laying head mold through bolts on the clamp 809, and the hot air blowing nozzle 810 for the large material sheet moves with the large material sheet holding and sheet laying device 3 to ensure that the hot air blowing nozzle 810 for the large material sheet is always under the large material sheet during the sheet laying process; the hot air distributor 806 is in a cone shape, and 6 branch outlets are evenly spaced at the top; the hot air blowing assembly for the small material sheet includes a bypass pipe 816 installed on the hot air main pipe 805 , an air valve B814 installed on the bypass pipe 816, an L-shaped small-piece hot air nozzle 812 installed at the air outlet of the bypass pipe 816, and an air nozzle telescopic component; the top of the bypass pipe 816 is inclined downward to be a straight pipe, and the hot air outlet end of the L-shaped small-piece hot air nozzle 812 is an arc-shaped arc bent upward, and the hot air inlet end of the L-shaped small-piece hot air nozzle 812 is sleeved in the hot air outlet end of the straight pipe (the hot air inlet end of the L-shaped small-piece hot air nozzle 812 can move in the gap in the straight pipe under the action of external force, and the heat leaked from the gap between the straight pipe and the L-shaped small-piece hot air nozzle 812 sleeve The wind can be ignored); the nozzle telescopic assembly includes an adjusting cylinder A815 and an adjusting cylinder B817 installed on both sides of the straight pipe; the cylinder ends of the adjusting cylinder A815 and the adjusting cylinder B817 are installed on the outside of the straight pipe 802 through the fixing seat 813, and the piston rod ends of the adjusting cylinder A815 and the adjusting cylinder B817 are respectively installed on both sides of the L-shaped small piece hot air nozzle 812 through the blowing pipe connecting angle plate; the piston rods of the adjusting cylinder A815 and the adjusting cylinder B817 extend and retract to drive the L-shaped small piece hot air nozzle 812 to be sent out and retracted from the outlet end of the straight pipe;When the small piece 10 is sent to the top of the sheet laying head mold 601, the piston rods of the regulating cylinder A815 and the regulating cylinder B817 are extended at the same time, and the air outlet of the L-shaped small piece hot air nozzle 812 is sent to aim at the inside of the bowl-shaped metal cover 716 and the lower layer of the small piece sucked by the three vacuum suction cups B715 to stop, and the hot air is blown to heat and soften it, so as to facilitate the deformation of the sheet laying in the next step. After heating with hot air for 3-5 seconds, the piston rods of the regulating cylinder A815 and the regulating cylinder B817 are retracted to retract the L-shaped small piece hot air nozzle 812 to its original position in the straight tube, making way for the bowl-shaped metal cover 716 to descend to lay the small piece. In order to improve The working efficiency of the hot air blower 801 is increased to reduce 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. A wind valve C804 is installed on the hot air circulation pipe 803. When the hot air volume is small or the hot air is not blown for a short time, the wind valve C804 is opened to return part or all of the hot air to the air inlet end of the hot air blower 801. This increases the air inlet temperature and reduces the work of the hot air blower. The hot air blower will automatically adjust the heating power or stop heating; the regulating cylinder A815 and the regulating cylinder B817; the model of the hot air blower 801 is SHL3 / ZYD-030B. ;

[0040] As attached Fig.13 As shown, the fully automatic male mold paving machine for bulletproof helmets installed with the present invention also includes a large-sheet automatic weighing and feeding device 2 installed on the left side of the load-bearing main beam 101 and the support frame 106, a large-sheet gripping and clamping paving device 3 installed on the inner side of the lower part of the soft pressing column 102, a large-sheet heating and soft pressing device 5 installed on the inner side of the upper disconnected section 112 of the soft pressing column 102, and a large-sheet middle pressing and holding device 4 installed on the load-bearing support beam 105; the large-sheet gripping and clamping paving devices 3 and the large-sheet heating and soft pressing devices 5 are both 6 in number, and the large-sheet heating and soft pressing devices 5 are arranged above the large-sheet gripping and clamping paving devices 3, and the 6 large-sheet gripping and clamping paving devices 3 and the 6 large-sheet heating and soft pressing devices 5 are arranged in a ring shape and are evenly spaced and installed on the outside of the paving head mold vacuum suction and uniform paving rotating device 6.

[0041] As attached Fig.14 , 15As shown, the large-sheet automatic weighing and feeding device 2 comprises a large-sheet material taking and reciprocating driving assembly installed on the left bottom surface of the load-bearing main beam 101, a large-sheet material taking and lifting assembly installed at the bottom of the large-sheet material taking and reciprocating driving assembly, and a material bearing and weighing assembly installed on the support frame 106; the large-sheet material taking and reciprocating driving assembly comprises a large-sheet material reciprocating cylinder 201 and a slider A203 slidably installed on a slide rail A202 and sliding along the slide rail A202; the slide rail A202 is fixedly installed on the middle bottom surface of the load-bearing main beam 101; a U-shaped tailstock 204 is fixedly installed on the bottom surface of the left end of the load-bearing main beam 101, a right-angle connecting plate A205 is fixedly installed on the bottom surface of the slider A203, and an ear seat A206 is fixedly installed on the end of the cylinder body of the large-sheet reciprocating cylinder 201, and the ear seat A206 is fixedly installed on the end of the cylinder body of the large-sheet material 206 is hinged with the U-shaped tailstock A204, the piston rod end of the large-sheet reciprocating cylinder 201 is fixedly connected to the vertical side plate of the right-angle connecting plate A205, and the model of the large-sheet reciprocating cylinder 201 is SC40×1250S; the large-sheet material picking and lifting assembly includes a vertically arranged picking and lifting cylinder 207; the piston rod end of the picking and lifting cylinder 207 is vertically downward, and right-angle folding plates A208 and right-angle folding plates B209 are fixedly installed on both sides of the cylinder end of the picking and lifting cylinder 207; the top plates of the right-angle folding plates A208 and the right-angle folding plates B209 are respectively fixed to the bottom surface of the slider A203; the piston rod of the large-sheet reciprocating cylinder 201 is telescopic to push the slider A203 to slide left and right and drive the picking and lifting cylinder 207 to move left and right, and the picking and lifting cylinder The model of cylinder 207 is TCL20×250S; the material bearing and weighing assembly includes a material picking disc 210, a large material vacuum suction cup 211, a material receiving disc 212 and an electronic scale 213; the material receiving disc 212 is used to place large material 9; the middle of the top surface of the material picking disc 210 is fixed to the piston rod end of the material picking lifting cylinder 207, and 6 mounting circular holes 214 are arranged at intervals along the edge of the material picking disc 210, and the 6 large material vacuum suction cups 211 are correspondingly mounted in the mounting circular holes 214, the suction cup mouth of the large material vacuum suction cup 211 is downward, and the top air inlet of the large material vacuum suction cup 211 is connected to the air source; a support plate 215 is installed on the support frame 106, and a linear cylinder 216 with a seat is fixedly installed at the four corners of the support plate 215, and the material receiving disc 21 Linear bearings A217 corresponding to the linear cylinder with seat 216 are installed at all four corners, and the top gap of the linear cylinder with seat 216 is inserted in the linear bearing A217; the electronic scale 213 is placed in the middle of the support table 215 and corresponds to the bottom surface of the receiving tray 212, and the receiving tray lifting cylinders 218 are respectively and vertically fixedly installed in the middle of the left and right edges of the support table 215. The two receiving tray lifting cylinders 218 are symmetrically arranged around the center of the support table 215, and a lifting plate 219 is installed at the top of the piston rod of the receiving tray lifting cylinder 218, and the lifting plate 219 lifts the receiving tray 212; the lifting of the piston rods of the two receiving tray lifting cylinders 218 drives the receiving tray 212 to be placed on the electronic scale 213 or pushed upward away from the electronic scale 213 through the lifting plate 219;The model of the material tray lifting cylinder 218 is MD20×30S; the model of the large sheet vacuum suction cup 211 is Dingling PA-40; the model of the linear bearing A217 is LBBR8; the model of the electronic scale 213 is Toledo MT1022. ;

[0042] As attached Fig.10 , 14 As shown in FIG. 15 , when the automatic weighing and feeding device 2 for large pieces of material of the present invention is working, the large pieces of material 9 are first arranged piece by piece, the wool ends are cut off, the adhesion caused by cutting is opened, and then the openings of the large pieces of material 9 are aligned and placed on the pre-calibrated position of the receiving tray 212. The electronic scale 213 is powered on to display the weight values ​​of all the large pieces of material 9. The device switch is started, and the two symmetrically distributed receiving tray lifting cylinders 218 are lifted from the original position to lift the receiving tray 212. Push away the electronic scale 213, the material taking lifting cylinder 207 drives the material taking disc 210 to descend from its original position to press the six large material vacuum suction cups 211 correspondingly onto the six corresponding material petals of the large material 9, turn on the vacuum, and the six large material vacuum suction cups 211 suck the six material petals of the large material 9, the material taking lifting cylinder 207 rises and stops at the original position, and then the material tray lifting cylinder 218 descends back to the original position, and the material tray 212 is placed on the electronic scale 213 for weighing. After weighing, the two values ​​before and after material taking are fed back 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 away, and then the piston rod of the large material piece reciprocating cylinder 201 extends from its original position to push the slider A203 to slide to the right and drive the material taking lifting cylinder 207 to run to the right to send the large material piece 9 to the center above the 6 large material piece holding and paving devices 3 to complete the taking 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 away, and the previous material taking action is repeated, that is, the material receiving plate lifting cylinder 218 rises from its original position to push the material receiving plate 212 away from the electronic scale 213, and the material taking lifting cylinder 207 drives the material taking disc 210 to descend from its original position to the out-of-position, and the large material piece vacuum suction cup 211 cuts off and destroys the vacuum to put the large material piece 9 that has been taken away back to its original position, and the material taking process is re-executed, so that it can be ensured that the large material piece sent away each time is one piece.

[0043] As attached Fig.16 , 17As shown, the large-sheet holding and paving device 3 comprises a vertically arranged paving lifting cylinder 301, a special-shaped connecting step plate 302 fixedly installed on the top of the paving lifting cylinder 301, and a right-holding and a left-holding assembly with the same structure installed at both ends of the special-shaped connecting step plate 302. The model of the paving lifting cylinder 301 is TR20×125S; two screw holes 303 for installing the large-sheet hot air outlet are arranged in the middle of the special-shaped connecting plate 302 facing the head mold direction; the steps on both sides of the special-shaped connecting step plate 302 are symmetrically arranged with the center of the top plate in the middle The right sheet clamping assembly and the left sheet clamping assembly are symmetrically arranged with the top plate center of the middle part of the special-shaped connecting step plate 302; a lower base mounting plate 304 is installed on one side of the bottom of the cylinder body of the sheet paving lifting cylinder 301, and the base of the lower base mounting plate 304 is hinged to the lower hinge seat 305 installed on the workbench 103. The inner side of the lower part of the soft pressure column 102 is hinged to the cylinder body end of the horizontally arranged auxiliary sheet paving cylinder 308 through the mounting base 307, and an upper mounting plate 306 corresponding to the piston rod end of the auxiliary sheet paving cylinder 308 is installed on the other side of the upper part of the cylinder body of the sheet paving lifting cylinder 301 The piston rod end of the auxiliary sheet-laying cylinder 308 is hinged to the outer ear seat of the upper mounting plate 306 through the connecting ear plate 309, and the model of the auxiliary sheet-laying cylinder 308 is MAL20×75SCA; the right sheet-grabbing clamping assembly includes a downward pressing right-handed rotary clamping cylinder 310, a right lower toothed plate 311 and a right upper toothed pressure plate 312, and the end surfaces corresponding to the right lower toothed plate 311 and the right upper toothed pressure plate 312 are provided with meshing teeth for grasping large sheets; a circular through hole A313 is provided in the middle of the right lower toothed plate 311; the top of the cylinder body of the downward pressing right-handed rotary clamping cylinder 310 Height adjustment sleeves A314 and B315 are arranged on both sides of the surface, and long rod bolts A316 and B317 installed on both sides of the right lower toothed plate 311 respectively pass through the height adjustment sleeves A314 and B315 to be screwed to both sides of the cylinder body of the downward pressing right-handed rotary clamping cylinder 310, and the piston rod of the downward pressing right-handed rotary clamping cylinder 310 passes through the circular through hole A313 to be fixed to the upper right toothed pressing plate 312; the piston rod of the downward pressing right-handed rotary clamping cylinder 310 moves downward to drive the upper right toothed pressing plate 312 to engage with the lower right toothed plate 311;

[0044] The left gripper clamping assembly includes a left-handed downward-pressing rotary clamping cylinder 318, a left lower toothed plate 319 and a left upper toothed pressure plate 320; a circular through hole B321 is provided in the middle of the left lower 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-handed downward-pressing rotary clamping cylinder 318, and long rod bolts C324 and D325 installed on both sides of the left lower toothed plate 319 respectively pass through the height adjustment sleeves C322 and D323 with clearance. It is screwed to both sides of the cylinder body of the downward pressing left-rotating rotary clamping cylinder 318, and the piston rod clearance of the downward pressing left-rotating 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 downward pressing left-rotating rotary clamping cylinder 318 moves downward to drive the upper left toothed pressure plate 320 to engage with the lower left toothed plate 319; the model of the downward pressing right-rotating rotary clamping cylinder 310 is OCKR20×30S; the model of the downward pressing left-rotating rotary clamping cylinder 318 is OCKL20×30S.

[0045] As attached Fig.10 , 16 As shown in 17, when the 6 large-sheet-holding and paving devices 3 of the present invention are working, while taking the large sheet 9, the auxiliary paving cylinder 308 is in place to ensure that the piston rod of the paving lifting cylinder 301 is vertically lifted to the out-position, and 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 the original position to the out-position, i.e., the highest position, and the upper right toothed pressing plate 312 and the upper left toothed pressing plate 320 are respectively rotated 90° outwardly from the direction toward the paving head mold, making room for the space blocked by the upper right toothed pressing plate 312 and the upper left toothed pressing plate 320, exposing the lower right toothed plate 311 and the lower left toothed plate 319, so as to facilitate the corresponding petals of the large sheet 9 to smoothly descend onto the lower right toothed plate 311 and the lower left toothed plate 319, and then the upper right toothed pressing plate 312 and the upper left toothed pressing plate 320 are rotated outwardly by 90°, making room for the space blocked by the upper right toothed pressing plate 312 and the upper left toothed pressing plate 320, exposing the lower right toothed plate 311 and the lower left toothed plate 319, The shaped pressing plates 320 are each rotated inward by 90° and then descended to press onto the lower right toothed plate 311 and the lower left toothed plate 319 respectively, to hold the corresponding petals of the large material sheet 9, and the 6 same large material sheet holding and clamping devices 3 are all distributed in concentric circles in the direction of the sheet-laying head mold, and each corresponds to the 6-petal area of ​​the large material sheet 9. The edge of each petal of each large material sheet 9 corresponds to a large material sheet holding and clamping device 3, that is, the upper right toothed pressing plate 312 is meshed with the lower right toothed plate 311, and the upper left toothed pressing plate 320 is meshed with the lower left toothed plate 319, and the two groups of meshing toothed plates hold one of the petals of the large material sheet 9. Similarly, the toothed plates on the other large material sheet holding and clamping devices 3 synchronously complete the same action to prevent any petal of the large material sheet from detaching during the pulling-down process, causing sheet laying failure.

[0046] When paving is in progress, the paving lifting cylinders 301 of the paving devices 3 for holding 6 large sheets synchronously drive the held large sheet 9 to descend along the contours of their corresponding paving head moulds, while the auxiliary paving cylinders 308 slowly extend out, and the two together form an arc motion trajectory, pulling each large sheet down to the bottom close to the arc of the paving head mould to complete the ideal paving action. When working, the A, C, and E petals are paved first, and then the B, D, and F petals are paved. In this way, the petals do not affect each other when paving, and can well ensure that the overlapping parts are paved equally flat and without wrinkles.

[0047] As attached Fig.18 , 19 As shown, the large sheet middle pressure bonding and holding device 4 includes a pressure bonding reciprocating assembly, a Z-shaped connecting plate 401 installed at the bottom of the pressure bonding reciprocating assembly, a reverse thrust assembly installed on the top surface of the lower end of the Z-shaped connecting plate 401, and a lifting and pressing heating assembly installed on the bottom surface of the lower end of the Z-shaped connecting plate 401; the pressure bonding reciprocating assembly includes a pressure bonding reciprocating cylinder 402 and a slider B404 slidably installed on a slide rail B403; the slide rail B403 is installed on the bottom surface of the load-bearing support beam 105; the Z-shaped connecting plate 40 The higher end of 1 is fixedly mounted on the bottom surface of the slider B404; a U-shaped base 405 is fixedly mounted on the bottom surface of the front end of the load-bearing support beam 105, a right-angle connecting plate B406 is fixedly mounted on the bottom surface of the slider B404, an ear seat B407 is fixedly mounted on the end of the cylinder body of the compression-bonding reciprocating cylinder 402, the ear seat B407 is hinged to the U-shaped base 405, and the piston rod end of the compression-bonding reciprocating cylinder 402 is fixedly connected to the vertical side plate of the right-angle connecting plate B406. The model of the compression-bonding reciprocating cylinder 402 is SU40×350S;

[0048] The reverse thrust assembly includes a vertically mounted reverse thrust cylinder 408 and a top plate 409 fixedly mounted on the top of the piston rod of the reverse thrust cylinder 408. An upper right-angle folded plate A410 and an upper right-angle folded plate B411 are fixedly mounted on both sides of the cylinder body of the reverse thrust cylinder 408. The bottom plates of the upper right-angle folded plate A410 and the upper right-angle folded plate B411 are fixedly mounted on the top surface of the lower end of the Z-shaped connecting plate 401. The piston rod of the reverse thrust cylinder 408 drives the top plate 409 to rise from its original position to the bottom surface of the slide rail B403. The model of the reverse thrust cylinder 408 is TN20×30.

[0049] The lifting and pressing heating assembly includes a lifting and pressing cylinder 412, a pressing disc 413, a heating rod 414, a temperature control probe 415 and a heat-resistant silicone disc 416; an upper right-angle folded plate A417 and a lower right-angle folded plate B418 are fixedly installed on the outer walls of both sides of the lifting and pressing cylinder 412, and the top plates of the upper right-angle folded plate A413 and the upper right-angle folded plate B416 are fixedly installed on the bottom surface of the lower end of the Z-shaped connecting plate 411; the piston rod at the bottom end of the lifting and pressing cylinder 412 is fixedly connected to the top surface of the pressing disc 413 through a hinge plate, and the heating rod 414 and the temperature control probe 415 are respectively installed in the mounting holes of the side wall of the pressing disc 413 at intervals, and the heat-resistant silicone disc 416 is bonded to the bottom surface of the pressing disc 413, and the size of the heat-resistant silicone disc 416 is the same as the top circle of the large sheet without cutouts; the model of the lifting and pressing cylinder 412 is TN20×200S;

[0050] As attached Fig.10 , 18 As shown in Figures 19 and 20, when the large sheet middle pressing and holding device 4 of the present invention is working, after the 6 large sheet gripping and clamping devices 3 grip and hold the delivered large sheet 9, the piston rod of the pressing and bonding reciprocating cylinder 402 extends from its original position, and sends the pressing disc 413 installed at the lower end of the Z-shaped connecting plate 401 to the top of the sheet laying head mold 601, that is, the center of the large sheet 9, the piston rod of the lifting and pressing cylinder 412 extends to drive the pressing disc 413 to descend, and presses the heat-resistant silicone disc 408 to the middle of the large sheet 9 and the top surface of the sheet laying head mold 601. At this time, the heating rod 414 has been energized and the temperature is raised to 60°C~70°C. At the same time, the piston rod of the reverse thrust cylinder 408 rises from its original position to push the top plate 409 to the bottom surface of the slide rail B404, and transmits the pressure to the top surface of the sheet laying head mold 601, and maintains it until the action of laying a large sheet 9 is completed. After completion, the piston rod of the reverse thrust cylinder 408 retracts to its original position, the piston rod of the lifting and pressing cylinder 412 rises back to its original position, and the pressing and bonding reciprocating cylinder 402 retracts from its out-of-position position to its original position. The whole action is to provide a large and small sheet for paving, and to ensure that the positioning and pressing and bonding quality are stable on the sheet paving head mold 601. Specifically, it is to prevent the large sheet 9 from shifting in any direction due to the slightly sequential movements of the 6 large sheet holding and clamping sheet paving devices 3, too many pneumatic components, and excessive gas consumption, which are prone to problems such as inconsistency, resulting in the misalignment of the position of the large sheet 9, and the 6 petals of a large sheet 9 after paving are of different lengths on the sheet paving head mold 601, which will cause the helmet to have more material in some places and less material in some places after pressing, affecting the quality of the bulletproof helmet. The electric heating pressing and bonding is to ensure that the center of the sheet can be superimposed and bonded to the maximum extent between each layer of sheet at the top of the sheet paving head mold 601, and the pressing and bonding work of the center of the sheet can be completed at the same time.

[0051] As attached Fig. 20 , 21As shown in 22, the large sheet heating soft pressing device 5 includes a soft pressing reciprocating drive component, a soft pressing component and a guide component; the soft pressing reciprocating drive component includes a U-shaped mounting frame 502 fixedly mounted between the upper disconnected sections 112 of the soft pressing column 102, a soft pressing reciprocating cylinder 501 fixedly mounted on the U-shaped mounting frame 502, and a cylinder fixing plate 503 fixedly mounted on the piston rod end of the soft pressing reciprocating cylinder 501; the U-shaped mounting frame 502 connects the upper and lower disconnected soft pressing columns 102 into a whole, and the piston rod gap of the soft pressing reciprocating cylinder 501 passes through the end plate of the U-shaped mounting frame 502; the soft pressing component includes a soft pressing base 504, a soft pressing base 505, a soft pressing base 506, a soft pressing base 507, a soft pressing base 508, a soft pressing base 509, a soft pressing base 510, a soft pressing base 511, a soft pressing base 512, a soft pressing base 513, a soft pressing base 514, a soft pressing base 515, a soft pressing base 516, a soft pressing base 517, a soft pressing base 518, a soft pressing base 519, a soft pressing base 519, a soft pressing base 519, a soft pressing base 511 The inner pressure plate 505 of the soft pressure rubber bag, the soft pressure rubber bag 506 and the M-shaped heating belt 507; the inner pressure plate 505 of the soft pressure rubber bag is concave on the corresponding side of the paving head mold, and the curvature of the concave matches the curvature of the convexity of the paving head mold; the middle of the outer arc surface of the soft pressure base 504 is fixed to the corresponding side of the cylinder fixing plate 503, the inner pressure plate 505 of the soft pressure rubber bag is set in the soft pressure rubber bag 506, the soft pressure rubber bag 506 is connected to the inner arc surface of the soft pressure base 504 by screws and pressed and sealed without leakage, and a filling regulating valve 508 for adjusting the amount of liquid water filled into the soft pressure rubber bag 506 is arranged on the upper part of the soft pressure base 504, that is, the filling regulating valve 508 One end of the flexible pressure base 504 is arranged in the flexible pressure rubber bag 506, so that the inner arc surface of the flexible pressure rubber bag 506 coincides with the corresponding area of ​​the sheet laying head mold 601, and the M-shaped heating belt 507 is arranged on the inner arc surface of the flexible pressure rubber bag 506. A thin insulating cloth with a sticky inner side slightly larger than the flexible pressure rubber bag 506 is used to cover the M-shaped heating belt 507 and the inner arc surface of the flexible pressure rubber bag 506. The M-shaped heating belt 507 is adhered to the inner side of the thin insulating cloth; to avoid the instantaneous high temperature of the M-shaped heating belt 507 from scalding the large sheet 9 when the 48V DC power is turned on for 1-3 seconds for heating, the soft pressing time of the large sheet 9 is preferably 3-5 seconds, and the area of ​​the flexible pressure rubber bag 506 is slightly larger than the large sheet 9. The area of ​​each petal of the sheet 9 is slightly enlarged by 2-4mm on the four sides. The 6 soft-pressure rubber bags correspond to the 1-6 areas of the sheet-laying head mold, and the curvature of the inner arc surfaces are different. When making it, it should be divided into 6 areas according to the numerical model of the sheet-laying mold for later processing; the guide assembly includes a linear bearing B509 installed in a through hole on one side of the end plate of the U-shaped mounting frame 502 and a guide rod 510 fixed at one end to one side of the cylinder fixing plate 503, and the other end of the guide rod 510 passes through the end plate of the U-shaped mounting frame 502 and the linear bearing B09; the model of the soft-pressure reciprocating cylinder 501 is SI40×300; the model of the linear bearing B509 is LBBR12.

[0052] As attached Fig.10 , 20As shown in , 21 and 22, the six large-sheet-holding and spreading devices 3 hold and clamp the six petals of the large-sheet 9, and after the hot air softens the sheet so that it is fully deformed without wrinkles, they are first pulled down into place and held in regions A, C, and E, and then B, D, and F are pulled down into place and held. The spreading work is completed, and at this time the large-sheet heating and soft-pressing device 5 of the present invention starts to work, and the piston rod of the soft-pressing reciprocating cylinder 501 extends forward from its original position to press the soft-pressing rubber bag 506 onto the large sheet on the spreading head mold 601 in regions A, C, and E and then B, D, and F, and then power is turned on for 1-3 seconds, and the heating belt 507 arranged on the front inner arc surface of the soft-pressing rubber bag 506 generates heat to melt the rubber layer on the lower layer of the large-sheet 9 It is bonded and compacted with the front layer, and cooled for 3-5 seconds after power is turned off. Then the soft pressing reciprocating cylinder 501 retracts from the front position to the original position, and the large sheet heating soft pressing device 5 completes its work. In this way, the sheet laying work of the rest of the sheet except the central area of ​​the large sheet 9 is completed. The amount of water injected into the soft pressing rubber bag 508 is controlled by the filling regulating valve 508 to adjust the pressure contact area and pressure of the soft pressing rubber bag 506 facing the inner arc surface of the sheet laying head mold 601. If the water is too full, the four sides of the soft pressing rubber bag 506 will bulge outward obviously during soft pressing, which can easily damage the soft pressing rubber bag 506. If the water is too little, the contact area between the inner arc surface of the soft pressing rubber bag 506 and the sheet laying head mold 601 will become smaller during soft pressing, and the pressure will also be reduced.

[0053] The following is a brief description of the working process of the fully automatic punch paving machine for bulletproof helmets of the present invention in combination with actual operation (taking a helmet paving as an example):

[0054] As attached Figure 1-22As shown, before using the bulletproof helmet fully automatic punch paving machine, first turn on the power supply and air source, check whether the cylinders of each actuator are in the correct position, and wait until the heating rod 414 set on the lower pressure disc 413 connected to the piston rod end of the lifting and pressing cylinder 412 in the middle pressure bonding and holding device 4 of the large sheet is heated to 60℃~70℃, and at the same time, the hot air blower 801 is also powered on and starts working. When the air outlet temperature of the large sheet blowing nozzle 810 and the L-shaped small sheet hot air nozzle 812 reaches 60℃~70℃, the feeding switch is connected during this period. When the air source is turned on, the two receiving tray lifting cylinders 218 will lift the receiving tray 212, clean the large and small sheets, and place the large sheets on the receiving tray 212 according to the positioning and the downward order of the sheet glue layer, and place the small sheets on the small sheet platform 107. After they are properly placed, press the loading completion switch, and the receiving tray lifting cylinder 218 will descend to place the receiving tray 212 The PLC will automatically take the value when the start switch is pressed. The large sheet reciprocating cylinder 201 does not move from its original position. The two receiving tray lifting cylinders 218 will synchronously lift the receiving tray 212. This position is the original position of the receiving tray lifting cylinder 218. The material taking lifting cylinder 207 descends from its original position and presses the six large sheet taking vacuum suction cups 211 onto the six petals of the large sheet 9. The vacuum is turned on to suck the large sheet. Then the material taking lifting cylinder 207 rises to its original position. The receiving tray lifting cylinder 218 is in the original position. 8 descends back to its original position, and the material receiving plate 212 and the large material sheet 9 thereon are placed on the electronic scale 213 for weighing and value taking. After the program determines that more than one piece is taken, the material taking lifting cylinder 207 descends from its original position, and the taken large material sheet is put back on the material receiving plate 202, and the vacuum is cut off and destroyed. The material taking lifting cylinder 207 rises back to its original position and the material is taken again. If only one piece is taken, the large material sheet reciprocating cylinder 201 extends from its original position to the exit position, and the large material sheet 9 is sent to the sheet laying head mold 6. 01 directly above; when the power is turned on, the auxiliary paving cylinder 308 retracts to its original position, and the paving lifting cylinder 301 rises from its original position to the highest point. After the piston rods of the right-hand rotary clamping cylinder 310 and the left-hand rotary clamping cylinder 318 are raised from their original positions to the highest point, the upper right toothed pressing plate 312 and the upper left toothed pressing plate 320 are driven to rotate 90° outwards respectively, exposing the lower right toothed plate 311 and the lower left toothed plate 319 (this preparatory action is completed after the power is turned on);The material picking lifting cylinder 207 descends to send the large material sheet 9 to the twelve lower toothed plates distributed in concentric circles, and covers the toothed part (the twelve lower toothed plates are flush with the top of the sheet laying head mold 601 and are on the same plane). Then the twelve upper toothed pressing plates are each rotated 90° from the outside to the inside and return to their original positions. The six downward pressing right-handed rotary clamping cylinders and the six downward pressing left-handed rotary clamping cylinders retract to tightly grip the large material sheet covered on the lower toothed plates. Then the material picking suction cup cuts off and destroys the vacuum. The material picking lifting cylinder 207 rises back to its original position, and the large material sheet reciprocating cylinder 201 retracts to its original position to pick up the next large material sheet (the sheet laying head mold 601 The vacuum of the vacuum suction cup A602 arranged on the top is maintained until the second large sheet is laid out to complete the material removal and maintenance; the pressing and bonding reciprocating cylinder 402 of the pressing and bonding and holding device 4 in the middle of the large sheet extends from its original position to send the pressing disc 413 and the like to the top of the sheet laying head mold 601, and the lifting and pressing cylinder 412 descends from its original position to press the pressing disc 413 with a certain temperature to the middle of the large sheet 9 to the middle of the sheet laying head mold 601 through the heat-resistant silicone disc 416 and maintain it, and the reverse thrust cylinder 408 rises from its original position to the lower surface of the slide rail B404 at the same time, so that the reaction force of the lifting and pressing cylinder 412 pressing down on the sheet laying head mold 601 and the reverse thrust cylinder 408 pressing to the lower surface of the slide rail B404 The forces acting on the surface are balanced to prevent the Z-shaped connecting plate 401 from deforming, and to ensure that there is enough pressure to press the middle of the large sheet 9 of the sheet paving head mold 601; the six air valves A807 are opened to blow hot air to heat the large sheet. After blowing hot air for 3-5 seconds, the petals of the large sheets A, C, and E are paved first according to the preset PLC program, and the sheet paving lifting cylinder 301 retracts to pull the softened A, C, and E petals downward, while the auxiliary sheet paving cylinder 308 slowly extends from its original position to form a curved motion trajectory to close the petals to the surface of the sheet paving head mold 601, pull them down into place and hold them, and at this time, the small air valves set in the A, C, and E areas on the sheet paving head mold 601 are started. The vacuum suction cup A602 firmly sucks the A, C, and E material petals that are in place for laying, and the corresponding large material hot air blowing nozzle 810 stops blowing hot air. Then the lifting cylinders for laying large material pieces B, D, and F retract to pull the softened B, D, and F material petals downward. At the same time, the auxiliary laying cylinder slowly extends from its original position to form a curved motion trajectory, and the material petals are pulled down and held in place close to the surface of the laying head mold 601. The small vacuum suction cup A602 in the B, D, and F areas on the laying head mold 601 is started to firmly suck the B, D, and F material petals that are in place for laying, and the corresponding large material hot air blowing nozzle 810 stops blowing hot air.Then, the 6 soft-pressing reciprocating cylinders 501 in the large-sheet heating and soft-pressing device 5 extend the corresponding A, C, and E material petals from their original positions to press the soft-pressing rubber bag 506 toward the A, C, and E areas of the material petals that have been laid on the sheet-laying head mold 601, and press and hold them. The heating belt 507 arranged on the inner arc surface of the soft-pressing rubber bag 506 is energized for 1-3 seconds and then cooled for 3-5 seconds. Then, the soft-pressing reciprocating cylinder 501 retracts to its original position. Then, the soft-pressing reciprocating cylinders corresponding to the B, D, and F material petals press toward the corresponding B, D, and F areas and press and hold them. After being energized for 1-3 seconds and then cooled for 3-5 seconds, the soft-pressing reciprocating cylinder 501 retracts to its original position, and the soft-pressing work of the large-sheet 9 is completed. Then, all the upper toothed pressure plates arranged on the top of the sheet-laying lifting cylinder 301 rise and rotate outward. The sheet that has been held is released, and the auxiliary sheet-laying cylinder 308 is retracted to its original position, and the sheet-laying lifting cylinder 301 is pulled back to its original vertical position, and the upper toothed pressing plate is rotated inwardly and pressed onto the lower toothed plate, and the next large sheet is prepared for sheet-laying work; if the sheet-laying work is a large sheet, the sheet-laying head mold 601 rotates 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 sheet 9 corresponds to a rotation angle, and then the above actions are repeated. If the next sheet-laying is a small sheet, the sheet-laying head mold 601 does not rotate, that is, the rotation angle corresponding to all small sheets is 0°. ;

[0055] When laying small pieces 10, the small piece lifting cylinder A702 and the small piece lifting cylinder B703 in the small piece feeding and laying and pressing device 7 extend from their original positions and descend to the middle position to press the bowl-shaped metal cover 716 onto the small piece 10 on the small piece platform 107, stop and hold, then the vacuum material taking cylinder 704 descends from its original position to press the three vacuum suction cups 715 onto the small piece 10, turn on the vacuum to suck the small piece 10 and hold, then After that, the vacuum material taking cylinder 704 returns to its original position, the small sheet lifting cylinder A702 and the small sheet lifting cylinder B703 rise from the middle position and return to their original positions, the material taking and feeding round-trip cylinder 701 extends from its original position to send the small sheet 10 at the top of the bowl-shaped rubber airbag 717 to the top of the sheet laying head mold 601 and stops and holds it, and the regulating cylinder A815 and the regulating cylinder B817 in the hot air heating device 8 for blowing hot air for large and small sheets adjust the L-shaped small sheet hot air nozzle 812 The air outlet is pushed to the bottom of the small sheet located at the top of the bowl-shaped rubber airbag 717, and the air valve B814 is opened to blow hot air at a temperature of 60℃-70℃ for 3-5 seconds. Then the regulating cylinder A815 and the regulating cylinder B817 are retracted to pull the L-shaped small sheet blowing pipe 812 back to the original position and keep it, the small sheet lifting cylinder A702 and the small sheet lifting cylinder B703 are lowered to the middle position and kept, and the vacuum material taking lifting cylinder 704 is lowered from the original position. The softened small piece 10 is spread to the center of the sheet spreading head mold 601, the vacuum of the material taking vacuum suction cup B715 is cut off and destroyed, the vacuum material taking lifting cylinder 704 rises back to its original position, the small piece lifting cylinder A702 and the small piece lifting cylinder B703 continue to descend from the middle position, the inner surface of the bowl-shaped rubber airbag 717 presses the small piece 10, and the air pressure of 4-6kg / cm is filled into the bowl-shaped rubber airbag 717 through the inflation nozzle 718. 2 The compressed air is used to press the small sheet 10 tightly on the top of the sheet laying head mold 601, and the power is turned on for 1-2 seconds and cooled for 3-5 seconds. The small sheet 10 is laid on the sheet laying head mold 601 without wrinkles, and the bowl-shaped rubber airbag 717 is deflated. The small sheet lifting cylinder A702 and the small sheet lifting cylinder B703 rise back to their original positions, and the feeding and reciprocating cylinder 701 retracts back to its original position to prepare for the next small sheet laying. Taking a helmet with 20 pieces (15 large sheets and 5 small sheets) as an example, different PLC special programs are compiled according to the different large and small sheet laying sequences of each production unit, and then the sheet laying is carried out as described above to complete the sheet laying work of a bulletproof helmet.

[0056] By adopting the full-automatic sheet laying of the present invention, the sheets are effectively bonded to each other, deformation of the sheets is prevented, the sheets are laid evenly, the formed bulletproof helmet has a beautiful appearance, high product quality, and the sheet laying saves time and labor, which greatly improves work efficiency. The present invention is suitable for promotion and application by equipment enterprises.

Claims

1. A small sheet heating device for bulletproof helmets, characterized in that: The invention comprises a machine frame (1), a vacuum material suction device for a sheet laying head mold and a uniform sheet laying rotating device (6), a small sheet material taking-in and feeding device and a sheet laying pressing and bonding device (7), and a hot air blowing and heating device (8) for large and small sheets; the machine frame (1) comprises a horizontally arranged frame body (109), a load-bearing main beam (101) horizontally installed on the upper layer of the frame body (109), a support frame (106) and a small sheet platform (107) correspondingly installed on the middle layer of the left and right sides of the frame body (109), a head mold mounting frame (108) installed between the support frame (106) and the small sheet platform (107), and A load-bearing support beam (105) is installed on the front side of the upper layer of the head mold mounting frame (108); a polygonal workbench (103) is installed in the middle of the head mold mounting frame (108); 6 long holes (104) are arranged at intervals along the circumferential surface of the workbench (103); the vacuum suction material suction and uniform paving rotation device (6) of the paving head mold are installed on the workbench (103), the hot air heating device (8) for large and small pieces is installed below the workbench (103), and the small piece feeding and paving pressing and bonding device (7) is installed on the right side of the load-bearing main beam (101).

2. The small sheet heating device for bulletproof helmet according to claim 1 is characterized in that: The paving head mold vacuum material suction sheet and uniform paving rotation device (6) comprises a paving head mold (601), a vacuum material suction sheet assembly arranged on the paving head mold (601), and a uniform paving rotation assembly installed at the bottom of the paving head mold (601); the paving head mold (601) is a metal shell matching the shape of the helmet, and its inner cavity is hollow; The vacuum sheet suction assembly comprises a sheet suction area arranged on the outer wall of a sheet laying head mold (601) and matching the shape of six petals of a large sheet, three suction cup step mounting holes (620) arranged on each sheet suction area, and a vacuum suction cup (602) embedded in each suction cup step mounting hole (620); the sheet suction area comprises areas a, b, c, d, e, and f, and the three vacuum suction cups (602) in each sheet suction area are arranged in a herringbone shape; A chassis (603) is fixedly mounted on the bottom surface of the paving head mold (601), a column tube (604) is mounted on the bottom surface of the chassis (603), the column tube (604) is connected to the inner cavity of the paving head mold (601) through a vent hole in the middle of the chassis (603), and through holes C (605) are arranged on both sides of the chassis (603) for a vacuum pipeline to enter the inner cavity of the paving head mold (601); A stepped shaft (606) is fixedly installed at the bottom end of the column tube (604), and a pressure bead plate (610) is installed on the upper shaft section (607) of the stepped shaft (606); a pressure bead plate mounting seat (611) and a bearing mounting seat (612) are correspondingly installed on the top and bottom surfaces in the middle of the workbench (103), the pressure bead plate (610) is arranged in the pressure bead plate mounting seat (611), the stepped shaft (606) passes through the middle hole (613) of the workbench (103) and the bearing mounting seat (612), and a bearing B (614) is installed on the lower shaft section (608) of the stepped shaft (606).

3. The small sheet heating device for bulletproof helmet according to claim 2, characterized in that: The uniform paving rotating assembly comprises a synchronous pulley A (615), a synchronous pulley B (616), a synchronous belt (617) and a stepping motor (618); The synchronous pulley A (615) is installed on the shaft head (609) of the stepped shaft (606), and a motor mounting bracket (619) with a side opening is fixedly installed on one side of the bottom surface of the worktable (103). The stepper motor (618) is vertically fixedly installed on the bottom plate of the motor mounting bracket (619) and its transmission shaft clearance passes through the bottom plate. The synchronous pulley B (616) is installed on the transmission shaft of the stepper motor (618). The synchronous pulley B (616) is arranged on the inner side of the motor mounting bracket (619), and the synchronous belt (617) is installed on the synchronous pulley A (615) and the synchronous pulley B (616).

4. The small sheet heating device for bulletproof helmet according to claim 3 is characterized in that: The model of the vacuum suction cup A (602) is Dingling PA-10; the model of the pressure bead plate (610) is F3-8M51110; the model of the bearing B (614) is F6208-2Z; and the model of the stepper motor (618) is STM57100.

5. The small sheet heating device for bulletproof helmet according to claim 1, characterized in that: The small-piece feeding and laying and pressing device (7) comprises a feeding and lifting assembly and a laying and pressing assembly; a slide block C (707) is slidably installed on the right side of the slide rail A (202); the slide rail A (202) is fixedly installed on the bottom surface of the middle part of the load-bearing main beam (101); The material taking and feeding reciprocating lifting assembly comprises a material taking and feeding reciprocating cylinder (701) arranged horizontally, a small material sheet lifting cylinder A (702) arranged vertically, a small material sheet lifting cylinder B (703) arranged vertically, and a vacuum material taking and lifting cylinder (704) arranged vertically; The cylinder end of the reciprocating cylinder (701) for taking and feeding is hingedly connected to a 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 ear seat (705); a door frame frame (708) is fixedly installed on the bottom surface of the slider C (707); the piston rod end of the reciprocating cylinder (701) for taking and feeding is fixedly installed on the bottom surface of the top plate of the door frame frame (708) through a right-angle connecting plate (713); a supporting plate (709) is fixedly installed at the bottom end of the door frame frame (708); cylinder rod passing holes (710) are arranged at both ends of the supporting plate (709) outside the door frame frame (708); and the small sheet lifting cylinder A (702) and the small sheet lifting cylinder A (713) are fixedly installed on the bottom surface of the top plate of the door frame frame (708). The cylinder ends of the lowering cylinder B (703) are respectively fixedly mounted on the top surfaces of both ends of the supporting plate (709); the piston rods of the small sheet lifting cylinder A (702) and the small sheet lifting cylinder B (703) respectively pass through the cylinder rod through holes (710) and are fixed to both sides of the connecting plate (711); the vacuum material lifting cylinder (704) is fixed to the middle of the connecting plate (711) through the installation angle piece (712); the front end of the piston rod of the vacuum material lifting cylinder (704) passes through the middle through hole of the connecting plate (711) and is connected to the sheet laying pressure bonding assembly; the upper cylinder body of the vacuum material lifting cylinder (704) passes through the square hole in the middle of the supporting plate (709); 6. The small sheet heating device for bulletproof helmet according to claim 5, characterized in that: The sheet laying pressure bonding assembly comprises a vacuum suction cup mounting disc (714) fixedly mounted on the piston rod end of a vacuum material picking lifting cylinder (704), three material picking vacuum suction cups B (715) fixedly mounted on the vacuum suction cup mounting disc (714) in an annular manner with the center of the vacuum suction cup mounting disc (714) as the axis, a bowl-shaped metal cover (716) fixedly mounted on the bottom of the connecting plate (711), and a bowl-shaped rubber airbag (717) arranged in the inner cavity of the bowl-shaped metal cover (716), the side wall interlayer of the bowl-shaped rubber airbag (717) is inflated and sealed, an air filling nozzle (718) is installed on the side wall of the bowl-shaped rubber airbag (717), the air filling nozzle (718) passes through a through hole D (719) on the bowl-shaped metal cover (716), and an annular heating belt (720) is arranged on the upper part of the inner cavity of the bowl-shaped rubber airbag (717); The bowl-shaped metal cover (716) and the bowl-shaped rubber airbag (717) are both provided with a disc through hole with an inner diameter larger than the outer diameter of the vacuum suction cup mounting disc 714 at the top, and the vacuum suction cup mounting disc (714) is arranged in the bowl-shaped rubber airbag (717) through the disc through hole.

7. The small sheet heating device for bulletproof helmet according to claim 6, characterized in that: The model of the reciprocating cylinder (701) for taking and feeding materials is SE40×1000S; The models of the small sheet lifting cylinder A (702) and the small sheet lifting cylinder B (703) are both SE50×350S; The model of the vacuum material taking lifting cylinder (704) is TN20×200S; The model of the material taking vacuum suction cup B (715) is Dingling PA-20.

8. The small sheet heating device for bulletproof helmet according to claim 2, characterized in that: The hot air heating device (8) for blowing hot air for large and small pieces comprises a hot air blower (801), a hot air main pipe (805) installed on the air outlet of the hot air blower (801), a hot air blowing component for large pieces and a hot air blowing component for small pieces installed at the air outlet of the hot air main pipe (805); The large-sheet hot air blowing component comprises a large-sheet hot air distributor (806) installed on the air 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 air outlet of the air valve A (807), and a flat conical large-sheet hot air blowing nozzle (810) installed at the air outlet of the heat-resistant hose (808); the heat-resistant hose (808) passes through the long hole (104); the large-sheet hot air blowing nozzle (810) is fixed to two screw holes arranged in the middle of the special-shaped connecting plate facing the sheet laying head mold through bolts on the clamp (809); the hot air distributor (806) is conical, and 6 branch outlets are evenly spaced at the top; The small-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-piece hot air nozzle (812) installed at the air outlet of the bypass pipe (816), and an air nozzle telescopic assembly; The top of the bypass pipe (816) is inclined downward to form a straight pipe, and the hot air inlet end of the L-shaped small piece hot air nozzle (812) is gap-fitted into the hot air outlet end of the straight pipe.

9. The small sheet heating device for bulletproof helmet according to claim 8, characterized in that: The nozzle telescopic assembly comprises an adjusting cylinder A (815) and an adjusting cylinder B (817) installed on both sides of the straight pipe; the cylinder ends of the adjusting cylinder A (815) and the adjusting cylinder B (817) are installed on the outside of the straight pipe (802) through a fixing seat (813), and the piston rod ends of the adjusting cylinder A (815) and the adjusting cylinder B (817) are installed on both sides of the L-shaped small sheet hot air nozzle (812) through a blowing pipe connecting angle plate; The piston rods of the regulating cylinder A (815) and the regulating cylinder B (817) extend and retract to drive the L-shaped small-piece 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).

10. The small sheet heating device for bulletproof helmet according to claim 9, characterized in that: The models of the regulating cylinder A (815) and the regulating cylinder B (817) are both MAL20×300CA; the model of the hot air blower (801) is SHL3 / ZYD-030B.

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