Full-automatic male die sheet paving machine for bulletproof helmet

Abstract

The invention relates to a full-automatic male die sheet paving machine for a bulletproof helmet. The invention relates to a large material sheet automatic weighing, taking and feeding device, six large material sheet holding, clamping and laying devices, a large material sheet middle pressing, sticking and maintaining device, six large material sheet heating and soft pressing devices, a sheet laying head mold vacuum material sheet suction and uniform sheet laying rotating device, and a large material sheet automatic weighing, taking and feeding device, six large material sheet holding, clamping and laying device, a large material sheet middle pressing, sticking and maintaining device, a large material sheet heating and soft pressing device and a sheet laying head mold vacuum material sheet suction and uniform sheet laying rotating device, a small material sheet taking, feeding, paving and pressing device; and a large and small material sheet hot air blowing and heating device. Large material sheets are positioned on the sheet paving head die, and the pressing and bonding quality is stable, so that all layers of material sheets at the central parts of the material sheets can be laminated and bonded together to the maximum extent, the sheet paving quality of the central areas of the material sheets is ensured, the material sheets are prevented from deflecting, the material sheets are bonded perfectly, and the smooth deformation of the material sheets is ensured. And the formed bulletproof helmet is attractive in appearance and high in product quality, time and labor are saved during sheet paving, the working efficiency is greatly improved, and the bulletproof helmet sheet paving machine is suitable for being popularized and applied to equipment enterprises.

Description

Technical Field

[0001] The invention relates to a fully automatic convex die laying machine for bulletproof helmets, belonging to the technical field of production and processing of equipment and fixture 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 during work, you will burn your fingers or damage the sheet. Each operator has different techniques, and the laid helmets are of various types. Some layers of sheets are too loose, some are not effectively bonded due to insufficient hot air heating time, and some are heated for a long time, causing the glue layer to fail. Some are stretched too much, and the large sheet is deformed, resulting in local over-thickness and insufficient material in some parts. When pressed, the sheet will be damaged due to excessive thickness, and the insufficient material will cause wrinkles, which greatly reduces the bulletproof performance and appearance quality of the helmet, and causes a large number of defective products. Due to the material of the bulletproof helmet, it cannot be repaired or repaired and can only be scrapped, causing great losses and waste. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a fully automatic convex mold paving machine for bulletproof helmets which fully automatically paves the pieces and prevents the pieces from being deformed and has high finished product quality.

[0005] The present invention adopts the following technical scheme: the present invention comprises a frame, a large-sheet automatic weighing and feeding device installed on the frame, 6 large-sheet gripping and clamping devices for spreading, a large-sheet middle-part pressing and holding device, 6 large-sheet heating and soft pressing devices, a spreading head mold vacuum suction sheet and uniform spreading rotation device, a small-sheet feeding and spreading pressing and bonding device, and a large- and small-sheet hot air heating device; the large-sheet automatic weighing and feeding device is installed on the middle and upper layers on the left side of the frame; the spreading head mold vacuum suction and uniform spreading rotation device is installed in the middle of the frame, and the 6 large-sheet gripping and clamping devices for spreading The device and 6 large-sheet heating and soft-pressing devices are installed in a ring shape and are evenly spaced apart on the outside of the vacuum suction and uniform paving rotation device of the paving head mold. The large-sheet heating and soft-pressing device is arranged above the large-sheet gripping and clamping paving device. The middle-part pressing and holding device of the large-sheet is installed on one side of the middle upper layer of the frame and corresponds to the top of the vacuum suction and uniform paving rotation device of the paving head mold. The small-sheet feeding and paving pressing and bonding device is installed on the upper right layer of the frame; the large and small-sheet hot air blowing and heating device is installed on the bottom and middle layers of the middle of the frame and is located below the vacuum suction and uniform paving rotation device of the paving head mold.

[0006] The positive effects of the present invention are as follows: before each vacuum material taking, the material tray lifting cylinder of the automatic weighing and feeding device for large material sheets of the present invention will lift the material tray upwards to avoid impact damage to the electronic scale. After the vacuum material taking is completed, the material tray lifting cylinder will descend to place the remaining large material sheets together with the material tray on the electronic scale for weighing and compare each weighing result with the previous weighing value. If the difference is less than or equal to the weight of a large material sheet, it proves that only one sheet has been taken away. Next, the large material sheet reciprocating cylinder will send the taken large material sheet to the top of the sheet laying head mold, and the material taking lifting cylinder will descend to send the large material sheet to the 12 lower toothed plates of the 6 large material sheet holding and spreading devices distributed in a ring. If the difference is greater than the weight of a large material sheet, the material taking lifting cylinder will descend to put the taken large material sheet back, and repeat the large material sheet taking procedure again. (The vacuum suction cup is used to attract the material because one side of the large material has an airtight film, so the second and subsequent layers of material will not be sucked together due to air leakage in the first layer. In addition, measures are taken to eliminate static electricity and clear the yarn from the cut edges of the material to ensure that only one piece of material is taken out each time by vacuum removal).

[0007] The present invention is equipped with 6 large-sheet-holding and sheet-spreading devices, each of which includes a right-holding and sheet-spreading device and a left-holding and sheet-spreading device, that is, the 12 sheet-holding and sheet-spreading devices are distributed in equal-height circles, and the large sheet is evenly divided into 6 material petals, and the edge of each petal corresponds to a large-sheet-holding and sheet-spreading device, that is, two pairs of upper and lower toothed plates are engaged to hold one material petal to prevent any petal of the large sheet from being detached during the pulling-down process of the sheet-spreading, resulting in sheet-spreading failure. The auxiliary sheet-spreading cylinder of each large-sheet-holding and sheet-spreading device can ensure that the sheet-spreading lifting cylinder is in a vertical state and rises when the piston rod is retracted, and the downward pressing left and right rotating clamping cylinder of each large-sheet-holding and sheet-spreading device can ensure that the upper toothed pressure plate rises When they reach the highest point, they rotate 90° to the outside, making room for the space blocked by the upper toothed plate and exposing the lower toothed plate to facilitate the descending of the corresponding material petals onto the lower toothed plate. Then the two upper toothed platens rotate 90° inwards respectively, descend and press onto the lower toothed plate to grip the material petals. When paving is in progress, the paving lifting cylinder drives the gripped material petals to descend along the contours of their respective paving head molds, while the auxiliary paving cylinder slowly extends out to form an arc motion trajectory together, pulling each material petal down to the bottom close to the arc of the paving head mold to complete the ideal paving action. When working, A, C, and E material petals are laid first, followed by B, D, and F material petals. In this way, the material petals do not affect each other when paving, and the overlapping parts can be well guaranteed to be laid flat.

[0008] The large sheet middle pressing and holding device of the present invention provides a guarantee for positioning a large sheet on a sheet paving head mold and for stable pressing and bonding quality, and prevents the large sheet from moving in any direction due to inconsistent actions between the six large sheet-holding and sheet-holding devices during the sheet paving process, causing the center position of the large sheet to shift, resulting in six petals (six areas) of the sheet being inconsistent, affecting the quality of the finished product; the large sheet middle pressing and holding device enables each layer of the sheet in the center part of the sheet to be overlapped and bonded together to the maximum extent, thereby ensuring the sheet paving quality of the center area of ​​the sheet.

[0009] The large sheet heating and soft pressing device of the present invention is that 6 large sheet gripping and clamping devices grip and clamp the six-petal sheet, soften it with hot air, and fully deform the sheet without wrinkles, then pull it into place and hold it, and then immediately heat and compact it in different areas, first A, C, E and then B, D, F, so that each large sheet that has been deformed and pulled into place to complete the paving is fully bonded with the previous sheet and the overlapping part of the current sheet, and the action is divided into soft pressing power on for 1-3 seconds and power off and then cooling for 3-5 seconds, so that the paving work of the remaining sheets except the central area of ​​the large sheet is completed. The guide mechanism can ensure the high consistency of the heating and soft pressing position each time to prevent deflection.

[0010] The sheet-laying head mold of the vacuum sheet-sucking and uniform sheet-laying rotating device of the present invention is divided into 6 material petal areas corresponding to the 6 petals of the large material sheet. One vacuum suction cup A is installed on the upper part and two vacuum suction cups A are installed on the lower part of each material petal area. The vacuum suction cup A is a small diameter (diameter of about Φ10mm) silicone suction cup. The first layer of large material sheet can be perfectly adsorbed to the surface of the sheet-laying head mold through 18 small vacuum suction cups A. This vacuum sheet-sucking assembly is only effective for the first layer of large material sheet. When the second layer of large material sheet is laid, it will be smoothly and perfectly bonded to the first layer of material sheet because of the first layer of material sheet as a base.

[0011] When the small sheet picking, feeding and sheet laying pressing and gluing device of the present invention is working, the two small sheet lifting cylinders descend at the same time 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 top of the sheet laying head mold and stops, and 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 is opened, 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 laying head mold, and the vacuum picking cylinder descends from its original position. Lower the small piece of material onto the sheet-laying head mold, then cut off and destroy the vacuum (fill the vacuum pipeline with compressed air for 0.5-1 second) and rise back to its original position. The small piece 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 piece of material 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 piece of material. Since the small piece of material rises to the original position after vacuum material removal, 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. The small piece of material cannot be cooled down quickly, so the small piece of material remains soft until the sheet is laid and powered on for heating and soft pressing, thereby ensuring smooth deformation.

[0012] 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.

[0013] 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 It is a schematic diagram of the structure of the present invention;

[0015] Attached Figure 2 It is a schematic diagram of the frame structure of the present invention;

[0016] Attached Figure 3 This is a schematic diagram of the structure of the automatic weighing and feeding device for large sheets of material according to the present invention;

[0017] Attached Figure 4 This is a schematic diagram of the assembly structure of the parts of the automatic weighing and feeding device for large sheets of the present invention;

[0018] Attached Figure 5 This is a schematic diagram of the structure of the device for holding and laying out large pieces of material according to the present invention;

[0019] Attached Figure 6 This is a schematic diagram of the assembly structure of the parts of the large-sheet gripping and clamping device of the present invention;

[0020] Attached Figure 7 This is a schematic diagram of the structure of the middle-part pressing and holding device for a large sheet of the present invention;

[0021] Attached Figure 8 It is a schematic diagram of the assembly structure of the parts of the middle-part pressing and holding device of the large sheet of the present invention;

[0022] Attached Fig. 9 This is a schematic diagram of the structure of the large sheet heating and soft pressing device of the present invention;

[0023] Attached Fig.10 This is a schematic diagram of the assembly structure of parts of the large-sheet heating and soft-pressing device of the present invention;

[0024] Attached Fig.11 This is a schematic diagram of the M-shaped heating belt structure of the present invention;

[0025] Attached Fig.12 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;

[0026] Attached Fig.13 It is a schematic diagram of the assembly structure of the parts of the vacuum suction sheet of the paving head mold and the uniform paving rotating device of the present invention;

[0027] Attached Fig.14 For attachment Fig.12 A schematic diagram of the cross-sectional structure at point A;

[0028] Attached Fig.15 It is a schematic diagram of the structure of the device for taking, feeding, laying and pressing small pieces of the present invention;

[0029] Attached Fig.16 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;

[0030] Attached Fig.17 This is a schematic diagram of the installation structure of the annular heating belt of the present invention;

[0031] Attached Fig.18 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;

[0032] Attached Fig.19 This is a schematic diagram of the structure of a large sheet of the present invention;

[0033] Attached Fig. 20 This is a schematic diagram of the top view of the structure of the sheet laying head mold of the present invention;

[0034] Attached Fig.21 It is a schematic diagram of the structure of the small piece of the present invention. DETAILED DESCRIPTION

[0035] As attached Figure 1 As shown, the fully automatic male mold paving machine for bulletproof helmets of the present invention comprises a frame 1, a large-sheet automatic weighing and feeding device 2 installed on the frame 1, 6 large-sheet gripping and clamping paving devices 3, a large-sheet middle-part pressing and holding device 4, 6 large-sheet heating and soft pressing devices 5, a paving head mold vacuum suction sheet and uniform paving rotating device 6, a small-sheet feeding and paving pressing and bonding device 7, and a large- and small-sheet hot air blowing and heating device 8; the large-sheet automatic weighing and feeding device 2 is installed on the middle and upper layers on the left side of the frame 1; the paving head mold vacuum suction and uniform paving rotating device 6 is installed in the middle of the frame 1, and the large-sheet gripping and clamping paving devices are installed in the middle of the frame 1. The sheet laying device 3 and the large sheet heating and soft pressing device 5 are installed in a ring shape and are evenly spaced apart on the outside of the sheet laying head mold vacuum suction and uniform sheet laying rotating device 6. The large sheet heating and soft pressing device 5 is arranged above the large sheet gripping and clamping sheet laying device 3. The large sheet middle pressing and holding device 4 is installed on one side of the middle upper layer of the frame 1 and corresponds to the top of the sheet laying head mold vacuum suction and uniform sheet laying rotating device 6. The small sheet feeding and sheet laying pressing and bonding device 7 is installed on the upper right layer of the frame 1; the large and small sheet hot air blowing and heating device 8 is installed on the bottom and middle layers of the middle of the frame 1 and is located below the sheet laying head mold vacuum suction and uniform sheet laying rotating device 6.

[0036] like Figure 2As shown, the frame 1 of the present invention includes a horizontally arranged frame 109, a load-bearing main beam 101 installed horizontally on the upper layer of the frame 109, a support frame 106 and a small sheet platform 107 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 front side of the upper layer of the head mold mounting frame 108, the load-bearing support beam 105 is perpendicular to the load-bearing main beam 101, and a polygonal work table 103 is installed in the middle of the head mold mounting frame 108; 6 long holes 104 are arranged at intervals along the circumference of the work table 103, and 6 soft pressure columns 102 are evenly installed at intervals along the circumference of the work table 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, a support 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.

[0037] The automatic weighing and feeding device 2 for large sheets of the present invention is installed on the left side of the load-bearing main beam 101 and the support frame 106, each large sheet gripping and clamping spreading device 3 is correspondingly installed on the inner side of the lower part of the soft pressure column 102, each large sheet heating and soft pressing device 5 is correspondingly installed on the inner side of the upper disconnected section 112 of the soft pressure column 102, the middle pressing and holding device 4 for large sheets is installed on the load-bearing support beam 105, the spreading head mold vacuum suction and uniform spreading rotation device 6 is installed on the work table 103, the large and small sheet hot air heating device 8 is installed below the work table 103, and the small sheet feeding and spreading pressing and bonding device 7 is installed on the right side of the load-bearing main beam 101.

[0038] As attached Figure 3 , 4As shown, the large-sheet automatic weighing and feeding device 2 of the present invention comprises a large-sheet material picking reciprocating drive assembly installed on the left bottom surface of the load-bearing main beam 101, a large-sheet material picking lifting assembly installed at the bottom of the large-sheet material picking reciprocating drive assembly, and a material weighing assembly installed on the support frame 106; the large-sheet material picking reciprocating drive 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 The ear seat A206 is hinged with the U-shaped tail seat 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 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 207 The model of the lifting 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, and 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. Linear bearings A217 corresponding to the linear cylinder with seat 216 are installed at the four corners of 212, 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 fixedly installed vertically 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 on 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. ;

[0039] As attached Figure 3 , 4 As shown in FIG. 19 , 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, and 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, and the device switch is started. The two symmetrically distributed receiving tray lifting cylinders 218 are lifted from their original positions, and the receiving tray 212 is lifted. 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.

[0040] As attached Figure 5 , 6As shown, the large-sheet holding and paving device 3 of the present invention 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 clamping assembly and a left-holding and clamping assembly of 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; the steps on both sides of the special-shaped connecting step plate 302 are aligned 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, and 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 304 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 06; The piston rod end of the auxiliary sheet spreading 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 spreading cylinder 308 is MAL20×75SCA; the right sheet gripping 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 corresponding end surfaces of the right lower toothed plate 311 and the right upper toothed pressure plate 312 are provided with meshing teeth for gripping large sheets; a circular through hole A313 is provided in the middle of the right lower toothed plate 311; the cylinder body of the downward pressing right-handed rotary clamping cylinder 310 A height adjustment sleeve A314 and a height adjustment sleeve B315 are arranged on both sides of the top surface. Long rod bolts A316 and long rod bolts B317 installed on both sides of the right lower toothed plate 311 respectively pass through the height adjustment sleeve A314 and the height adjustment sleeve B315 to be screwed to both sides of the cylinder body of the downward pressing right-handed rotary clamping cylinder 310. 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.

[0041] 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.

[0042] As attached Figure 5 , 6 As shown in 19, 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 outward 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 outward 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.

[0043] 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.

[0044] As attached Figure 7 , 8 As shown, the large sheet middle pressure bonding and holding device 4 of the present invention comprises 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, pressing and heating assembly installed on the bottom surface of the lower end of the Z-shaped connecting plate 401; the pressure bonding reciprocating assembly comprises 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 401 ... The higher end of the plate 401 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-bonded reciprocating cylinder 402, the ear seat B407 is hinged to the U-shaped base 405, and the piston rod end of the compression-bonded reciprocating cylinder 402 is fixedly connected to the vertical side plate of the right-angle connecting plate B406. The model of the compression-bonded reciprocating cylinder 402 is SU40×350S;

[0045] 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.

[0046] 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;

[0047] As attached Figure 7 , 8 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.

[0048] As attached Fig. 9 , 10As shown in 11, the large sheet heating soft pressing device 5 of the present invention 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 reciprocating drive component, ... soft pressing reciprocating drive component, and a soft pressing reciprocating drive component, and a soft pressing reciprocating drive component, and a soft pressing reciprocating drive component, and a soft pressing reciprocating drive component, and a soft pressing reciprocating drive component, and a soft pressing reciprocating drive component, and a soft pressing reciprocating drive A pressure base 504, a soft-pressure rubber bag inner pressure plate 505, a soft-pressure rubber bag 506 and an M-shaped heating belt 507; the soft-pressure rubber bag inner pressure plate 505 is concave on the corresponding side of the paving head mold, and the curvature of the concave part matches the curvature of the convex part 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 soft-pressure rubber bag inner pressure plate 505 is sleeved 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 adjustment device 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. The throttle valve 508, i.e., one end of the liquid filling regulating valve 508 passes through the soft pressure base 504 and is set in the soft pressure rubber bag 506, so that the inner arc surface of the soft pressure rubber bag 506 coincides with the corresponding area of ​​the sheet laying head mold 601, and the M-shaped heating belt 507 and the inner arc surface of the soft pressure rubber bag 506 are bonded and covered with a thin insulating cloth with sticky inside that is slightly larger than the soft pressure rubber bag 506, and the M-shaped heating belt 507 is bonded to the inside 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 is connected for heating for 1-3 seconds, the soft pressure time of the large sheet 9 is preferably 3-5 seconds, and the area of ​​the soft pressure rubber bag 506 is slightly larger than each petal of the large sheet 9 The area of ​​the sheet 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 surface is different. When making, 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 the 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.

[0049] As attached Fig. 9 , 10As shown in 11, the six large-sheet-holding and paving 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 paving work is completed. 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 paving 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. The heating belt 507 arranged on the front inner arc surface of the soft-pressing rubber bag 506 generates heat, melts the rubber layer of the lower layer of the large-sheet 9, and 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 is retracted from the front position to the original position, and the large-sheet heating and soft-pressing device 5 is completed. In this way, the paving of the remaining sheets 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 paving 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 paving head mold 601 will become smaller during soft pressing, and the pressure will also be reduced.

[0050] As attached Fig.12 , 13As shown in Figures 14 and 20, 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 20 mm; the vacuum suction sheet assembly includes a sheet suction 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 sheet suction area, and a vacuum suction cup 602 embedded in each suction cup step mounting hole 620, the sheet suction area includes a , b, c, d, e, and f areas, the three vacuum suction cups 602 in each area 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 paving head mold 601, the air inlet end of the vacuum suction cup 602 is installed in the inner cavity of the sheet paving head mold 601 through a nut, a chassis 603 is fixedly installed on the bottom surface of the sheet paving head mold 601, a 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 paving 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 paving 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 paving head mold 601; a step is fixedly installed at the bottom end of the column tube 604 The stepped shaft 606 has a pressure bead plate 610 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, and 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 rotating assembly includes a synchronous pulley A615, a synchronous pulley B616, a synchronous belt 617 and a stepping motor 618; the synchronous pulley A615 is installed on the shaft head 609 of the stepped shaft 606, and on one side of the bottom surface of the workbench 103 A motor mounting bracket 619 with a lateral opening is fixedly mounted, the stepper motor 618 is vertically fixedly mounted 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 mounted 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 mounted 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.

[0051] As attached Fig.12 , 13As shown in , 14 and 19, when the vacuum sheet suction sheet of the sheet laying head mold and the uniform sheet laying rotating device 6 of the present invention are working, there will be a problem, that is, the first large sheet laid on each helmet, after the middle part of the large sheet is pressed and bonded, the material petals are laid step by step and heated and soft pressed, the overlapping parts of the six petals of the large sheet are 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 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. The entire helmet basically cannot meet the technical requirements after laying and is completely waste. After analysis, it was found that the heat from heating and bonding the large sheet was quickly conducted and lost by the sheet-laying head mold 601 because the sheet-laying head mold 601 was made of metal and had a large wall thickness, causing the adhesive film on the large sheet to not melt and adhere well. Even prolonging the heating time could not solve the problem. The helmet was equipped with a heating device, which caused the entire sheet to stick to the surface of the sheet-laying head mold and could not be removed. This did not work either. Finally, three small-diameter (about Φ10mm in diameter) silicone vacuum suction cups A602 (one on the upper part and two on the lower part) were set in each of the six areas corresponding to the sheet-laying head mold and the first layer of large sheet. In this way, 18 small vacuum suction cups A602 were used to fix the sheet-laying head mold and the first layer of large sheet. The vacuum suction of the large sheet 9 can keep the shape of the first layer of large sheet 9 after heating and softening during paving, tightly wrapped on the surface of the paving head mold 601. Since one side of the large sheet 9 is coated with an airtight film, it is only effective for paving 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 smoothly and ideally bonded to the first layer of large sheet 9, and the subsequent layers of sheet can also be paved smoothly. In order to evenly stagger the overlapping parts between the petals of the large sheet 9 to avoid overlapping, that is, to ensure that the number of layers and thickness of sheet in each cross section of the helmet are the same, the rotation of the uniform paving is controlled by PLC. Component, the stepper motor 618 drives the laying head mold from the starting position (the starting position is positioned at 0°) through the synchronous belt 617. When laying 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°. When the helmet is laid, it automatically returns to 0° (starting position) and proceeds to the next cycle (the large pieces of helmets generally designed are divided into 6 petals, and the overlap between each petal accounts for 1 / 3 of each petal. A maximum of three large pieces of material can be evenly laid to complete a layer).

[0052] As attached Fig.15 , 16As shown in , 17, 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; A support plate 709 is fixedly installed at the bottom end of the door frame 708, and cylinder rod through holes 710 are arranged at both ends of the support 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 support 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 support plate 709;

[0053] 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 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, an air charging nozzle 718 is installed on the side wall of the bowl-shaped rubber airbag 717, the air charging nozzle 718 passes through the through hole D719 on the bowl-shaped metal cover 716 to connect the bowl-shaped rubber airbag 717 with 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 (that is, both ends are led downward to connect to the power supply, and it is not a complete ring);

[0054] The model of the reciprocating cylinder 701 for picking up 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 picking lifting cylinder 704 is TN20×200S; the model of the material picking vacuum suction cup B715 is Dingling PA-20.

[0055] As attached Fig.15 , 16 As shown in 17 and 21, 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 it out by vacuum. The piston rod of the material 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 material piece 10 is larger than the outer diameter of the upper opening of the bowl-shaped rubber airbag 717. The small material 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 material piece 10 to cool down quickly. Therefore, the small material piece remains soft until the sheet 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.

[0056] As attached Fig.18As 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 large-piece hot air blowing component and a small-piece hot air blowing component installed at the air outlet of the hot air main pipe 805; the large-piece hot air blowing component comprises a large-piece hot air distributor 806 installed on the air outlet of the hot air main pipe 805, an air valve A807 installed at the branch outlet of the large-piece hot air distributor 806, a heat-resistant hose 808 installed at the air outlet of the air valve A807, and a flat hose 808 installed at the air outlet of the heat-resistant hose 808. The hot air blowing nozzle 810 for large pieces is conical; the hot air blowing nozzle 810 for large pieces 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 large pieces moves with the large piece holding and sheet laying device 3 to ensure that the hot air blowing nozzle 810 for large pieces is always under the large piece during the sheet laying process; the hot air distributor 806 is conical, and 6 branch outlets are evenly spaced at the top; the small piece hot air blowing assembly includes a bypass pipe 81 installed on the hot air main pipe 805 6. The air valve B814 installed on the bypass pipe 816, the L-shaped small-piece hot air nozzle 812 installed at the air outlet of the bypass pipe 816, and the air nozzle telescopic assembly; 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 air leaked from the gap between the straight pipe and the L-shaped small-piece hot air nozzle 812 sleeve The hot air 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. ;

[0057] The following is a brief description of the working process of the bulletproof helmet automatic punch paving machine combined with actual operation (taking a helmet paving as an example):

[0058] As attached Figure 1-21As shown, before using the present invention, first turn on the power supply and air source, check whether the cylinders of each actuator are in the correct position, wait for 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 to heat up to 60℃~70℃, and at the same time, the hot air blower 801 is also powered on to start working. When the air outlet temperature of the large material blowing nozzle 810 and the L-shaped small material hot air nozzle 812 reaches 60℃~70℃, the loading switch is connected in the meantime. When the air source is turned on, the two material tray lifting cylinders 218 lift the material tray 212, sort out the large and small materials, and place the large materials on the material tray 212 according to the positioning and the order of the material adhesive layer facing down, and place the small materials on the small material platform 107. After they are properly placed, press the loading completion switch, the material tray lifting cylinder 218 descends and places the material tray 212 on the electronic scale 213, the PLC will automatically take the value, press the start switch, the large material reciprocating cylinder 201 does not move from its original position, and the two material tray lifting cylinders 218 synchronously lift the material tray 212 Lift up, this position is the original position of the material tray lifting cylinder 218, the material taking lifting cylinder 207 descends from its original position, and the 6 vacuum suction cups 211 for taking large pieces are pressed onto the 6 petals of the large piece 9, the vacuum is turned on to suck the large piece, and then the material taking lifting cylinder 207 rises to its original position, the material tray lifting cylinder 218 descends back to its original position, the material tray 212 and the large piece 9 on it 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, the large piece that has been taken is put back on the material tray 202, 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. After a piece of sheet is taken out, the large sheet reciprocating cylinder 201 extends from the original position to the out position, and the large sheet 9 is sent to the top of the sheet paving head mold 601; when the power is turned on, the auxiliary sheet paving cylinder 308 retracts to the original position, and the sheet paving lifting cylinder 301 rises to the highest point from the original position, and the piston rods of the right-hand rotary clamping cylinder 310 and the left-hand rotary clamping cylinder 318 are pressed down and rise to the highest point from the original position, driving the upper right toothed pressing plate 312 and the upper left toothed pressing plate 320 to rotate 90° outward 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 taking lifting cylinder 207 descends to send the large sheet 9 to the top of the sheet paving head mold 601 distributed in concentric circles. The twelve lower toothed plates are placed on the top of the plate-laying head mold 601 and the toothed parts are covered (the twelve lower toothed plates are flush with the top of the plate-laying head mold 601 and are on the same plane). Then the twelve upper toothed pressing plates are 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 sheet covered on the lower toothed plates. Then the material-taking suction cup cuts off and destroys the vacuum. The material-taking lifting cylinder 207 rises back to its original position. The large sheet reciprocating cylinder 201 retracts to its original position to take the next large sheet. (The vacuum of the vacuum suction cup A602 arranged on the plate-laying head mold 601 is maintained until the second large sheet is paved). The material is taken and held.The pressing and bonding reciprocating cylinder 402 of the pressing and bonding and holding device 4 for the middle part of the large sheet extends from its original position to send the pressing disc 413 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 part of the large sheet 9 to the middle part of the sheet laying head mold 601 through the heat-resistant silicone disc 416 and hold 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 force of the reverse thrust cylinder 408 pressing on the lower surface of the slide rail B404 are balanced, preventing the Z-shaped connecting plate 401 from deformation and ensuring that there is enough pressure to press the middle part of the large sheet 9 of the sheet laying head mold 601; 6 air valves A807 are opened Open, blow hot air to heat the large material sheets, after blowing hot air for 3-5 seconds, according to the preset PLC program, the material petals of the large material sheets A, C, and E are spread first, and the sheet spreading lifting cylinder 301 retracts to pull the softened material petals A, C, and E downwards. At the same time, the auxiliary sheet spreading cylinder 308 slowly extends from its original position to form a curved motion trajectory to keep the material petals close to the surface of the sheet spreading head mold 601, pull them down into place and hold them. At this time, the small vacuum suction cup A602 set in the A, C, and E areas on the sheet spreading head mold 601 is started to firmly suck the A, C, and E material petals that are spread in place, and the corresponding large material sheet hot air blowing nozzle 810 stops blowing hot air, and then the sheet spreading lifting cylinder of the large material sheets B, D, and F retracts to soften the B, D, and F. The material petals are pulled downward, and at the same time, the auxiliary sheet-laying cylinders slowly extend from their original positions, forming a curved motion trajectory together, pulling the material petals down close to the surface of the sheet-laying head mold 601 and holding them in place, and starting the small vacuum suction cups A602 in the B, D, and F areas on the sheet-laying head mold 601 to firmly suck the B, D, and F material petals that have been laid in place. At this time, the corresponding large sheet hot air nozzles 810 stop blowing hot air; then the 6 soft-pressing reciprocating cylinders 501 in the large sheet heating and soft-pressing device 5, among which the A, C, and E material petals extend from their original positions to press the soft-pressing rubber capsules 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, and the inner arc surface of the soft-pressing rubber capsules 506 The upper heating belt 507 is powered on for 1-3 seconds and then cooled for 3-5 seconds, and then the soft-pressing reciprocating cylinder 501 is retracted to its original position, and then the soft-pressing reciprocating cylinders corresponding to the B, D, and F material petals are pressed toward the corresponding B, D, and F areas and pressed and maintained, powered on for 1-3 seconds and then cooled for 3-5 seconds, and then the soft-pressing reciprocating cylinder 501 is retracted to its original position, and the soft-pressing work of the large material sheet 9 is completed; then all the upper toothed pressing plates arranged on the top of the sheet-laying lifting cylinder 301 rise and rotate outward to release the sheet that has been held, and at the same time, 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 inward to be pressed onto the lower toothed plate, ready to execute the work of holding and laying the next large sheet;At this time, if the work of paving a large piece is being carried out, the paving head mold 601 rotates according to the set rules of 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 piece 9 corresponds to a rotation angle, and then the above actions are repeated. If the next step of paving is a small piece, the paving head mold 601 does not rotate, that is, the rotation angle corresponding to all small pieces is 0°. ;

[0059] 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. 2The 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.

[0060] 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 fully automatic convex mold laying machine for bulletproof helmets, characterized in that: It comprises a frame (1), a large-sheet automatic weighing and feeding device (2) installed on the frame (1), 6 large-sheet gripping and clamping devices (3), a large-sheet middle-portion pressing and holding device (4), 6 large-sheet heating and soft pressing devices (5), a sheet-laying head mold vacuum-absorbing sheet and uniform sheet-laying rotating device (6), a small-sheet feeding and sheet-laying pressing and bonding device (7), and a large- and small-sheet hot air blowing and heating device (8); The large-sheet automatic weighing and feeding device (2) is installed on the left middle layer and the upper layer of the frame (1); the sheet-laying head mold vacuum suction and uniform sheet-laying rotating device (6) is installed in the middle of the frame (1); 6 large-sheet gripping and clamping sheet-laying devices (3) and 6 large-sheet heating and soft pressing devices (5) are installed in a ring shape and are evenly spaced outside the sheet-laying head mold vacuum suction and uniform sheet-laying rotating device (6); the large-sheet heating and soft pressing device (5) is arranged above the large-sheet gripping and clamping sheet-laying device (3); the large-sheet middle pressing and holding device (4) is installed on one side of the middle upper layer of the frame (1) and corresponds to the top of the sheet-laying head mold vacuum suction and uniform sheet-laying rotating device (6); the small-sheet feeding and sheet-laying pressing and bonding device (7) is installed on the right upper layer of the frame (1); the large and small-sheet hot air heating device (8) is installed on the middle bottom layer and the middle layer of the frame (1) and is located below the sheet-laying head mold vacuum suction and uniform sheet-laying rotating device (6).

2. The fully automatic male mold paving machine for bulletproof helmets according to claim 1 is characterized in that: The frame (1) comprises a frame body (109) arranged transversely, a load-bearing main beam (101) installed transversely on the upper layer of the frame body (109), a support frame (106) and a small sheet platform (107) installed in the middle layer on 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) installed on the front side of the upper layer of the head mold mounting frame (108), wherein the load-bearing support beam (105) is perpendicular to the load-bearing main beam (101). A polygonal workbench (103) is installed in the middle of the head mold mounting frame (108); six long holes (104) are arranged at intervals along the circumference of the workbench (103); six soft pressure columns (102) are evenly installed along the circumference of the workbench (103) outside the six long holes (104); an annular fixing plate (110) is fixedly installed along the top of the six soft pressure columns (102); a supporting column (111) is fixedly installed between the six soft pressure columns (102); a disconnecting section (112) is arranged on the upper part of the soft pressure column (102); The large-sheet automatic weighing and feeding device (2) is installed on the left side of the load-bearing main beam (101) and the support frame (106); each large-sheet gripping and clamping spreading device (3) is correspondingly installed on the inner side of the lower part of the soft-pressing column (102); each large-sheet heating and soft-pressing device (5) is correspondingly installed on the inner side of the upper disconnected section (112) of the soft-pressing column (102); the large-sheet middle pressing and holding device (4) is installed on the load-bearing support beam (105); the spreading head mold vacuum suction and uniform spreading rotation device (6) is installed on the workbench (103); the large and small-sheet hot air heating device (8) is installed below the workbench (103); and the small-sheet feeding and spreading pressing and bonding device (7) is installed on the right side of the load-bearing main beam (101).

3. The fully automatic male mold paving machine for bulletproof helmets according to claim 2 is characterized in that: 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 reciprocating drive assembly comprises a large-sheet material reciprocating cylinder (201) and a sliding block A (203) slidably mounted on a sliding rail A (202); the sliding rail A (202) is fixedly mounted on the bottom surface of the middle part 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 A (205) is fixedly installed on the bottom surface of the slider A (203), an ear seat A (206) is fixedly installed on the end of the cylinder body of the large sheet reciprocating cylinder (201), the ear seat A (206) is connected to the U-shaped tailstock A (204), and 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 A (205); The large sheet material picking and lifting assembly comprises a vertically arranged picking and lifting cylinder (207); the piston rod end of the picking and lifting cylinder (207) is vertically downward, and a right-angle folded plate A (208) and a right-angle folded plate B (209) are fixedly installed on both sides of the cylinder body end of the picking and lifting cylinder (207); the top plates of the right-angle folded plate A (208) and the right-angle folded plate B (209) are respectively fixed to the bottom surface of the slider A (203); The material receiving and weighing assembly comprises a material taking disc (210), a large material sheet vacuum suction cup (211), a material receiving disc (212) and an electronic scale (213); 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). The 6 large-sheet vacuum suction cups (211) are correspondingly mounted in the mounting circular holes (214), and the suction cup openings of the large-sheet vacuum suction cups (211) are downward, and the air inlets of the large-sheet vacuum suction cups (211) are connected to the air source; a support plate (215) is mounted on the support frame (106), and a linear cylinder (216) with a seat is fixedly mounted on the four corners of the support plate (215), and linear bearings A (217) corresponding to the linear cylinder (216) with a seat are mounted on the four corners of the material receiving disc (212), and the top gap of the linear cylinder (216) with a seat is inserted in the linear bearing A (217); The electronic scale (213) is placed in the middle of the support plate (215) and corresponds to the bottom surface of the receiving plate (212). The receiving plate lifting cylinders (218) are respectively and vertically fixedly installed in the middle of the left and right edges of the support plate (215). The two receiving plate lifting cylinders (218) are symmetrically arranged around the center of the support plate (215). A lifting plate (219) is installed at the top of the piston rod of the receiving plate lifting cylinder (218). The lifting plate (219) lifts the receiving plate (212). The lifting and lowering of the piston rods of the two receiving plate lifting cylinders (218) drives the receiving plate (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 large sheet reciprocating cylinder (201) is SC40×1250S; The model of the material taking lifting cylinder (207) is TCL20×250S; The model of the material receiving 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 A (217) is LBBR8; The model of the electronic scale (213) is Toledo MT1022.

4. The fully automatic male mold paving machine for bulletproof helmets according to claim 2 is characterized in that: The large-sheet gripping and clamping device (3) comprises a vertically arranged sheet lifting cylinder (301), a special-shaped connecting step plate (302) fixedly mounted on the top of the sheet lifting cylinder (301), and a right sheet gripping and clamping assembly and a left sheet gripping and clamping assembly with the same structure mounted on both ends of the special-shaped connecting step plate (302); two screw holes (303) for mounting a large-sheet hot air outlet are arranged in the middle of the special-shaped connecting plate (302) facing the head mold direction; the right sheet gripping and clamping assembly and the left sheet gripping and clamping assembly are symmetrically arranged with respect to 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 on one side of the bottom of the cylinder body of the sheet laying lifting cylinder (301), the base of the lower base mounting plate (304) is hinged to a 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 laying cylinder (308) through a mounting base (307), and an upper mounting plate (306) corresponding to the piston rod end of the auxiliary sheet laying cylinder (308) is installed on the other side of the upper part of the cylinder body of the sheet laying lifting cylinder (301); the piston rod end of the auxiliary sheet laying cylinder (308) is hinged to the outer side of the upper mounting plate (306) through a connecting ear plate (309); The right gripper clamping assembly comprises a downward pressing right-handed rotary clamping cylinder (310), a right lower toothed plate (311) and a right upper toothed pressing plate (312); meshing teeth are arranged on the corresponding end surfaces of the right lower toothed plate (311) and the right upper toothed pressing plate (312), and a circular through hole A (313) is arranged in the middle of the right lower toothed plate (311); height adjustment sleeves A (314) and height adjustment sleeves B (315) are arranged on both sides of the top surface of the cylinder body of the downward pressing right-handed rotary clamping cylinder (310), and are installed on the right lower toothed plate (311). The long rod bolts A (316) and the long rod bolts B (317) on both sides respectively pass through the height adjustment sleeve A (314) and the height adjustment sleeve B (315) to be screwed to the two sides of the cylinder body of the downward pressing right-handed rotary clamping cylinder (310); the piston rod of the downward pressing right-handed rotary clamping cylinder (310) passes through the circular through hole A (313) to be fixed to the upper right toothed pressure plate (312); the piston rod of the downward pressing right-handed rotary clamping cylinder (310) moves downward to drive the upper right toothed pressure plate (312) to mesh with the lower right toothed plate (311); The left gripper clamping assembly comprises a left-handed downward pressing clamping cylinder (318), a left lower toothed plate (319) and a left upper toothed pressing plate (320); a circular through hole B (321) is arranged in the middle of the left lower toothed plate (319); height adjustment sleeves C (322) and height adjustment sleeves D (323) are arranged on both sides of the top surface of the cylinder body of the left-handed downward pressing clamping cylinder (318); long rod bolts C (324) and long rod bolts D (323) are arranged on both sides of the cylinder body of the left lower toothed plate (319); D (325) respectively passes through the height adjustment sleeve C (322) and the height adjustment sleeve D (323) to be screwed to the two sides of the cylinder body of the downward pressing left-handed rotary clamping cylinder (318); the piston rod of the downward pressing left-handed rotary clamping cylinder (318) passes through the circular through hole B (321) to be fixed to the upper left toothed pressure plate (320); the piston rod of the downward pressing left-handed 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 paving lifting cylinder (301) is TR20×125S; The model of the downward pressing right-handed rotary clamping cylinder (310) is OCKR20×30S; The model of the downward pressing left-hand rotary clamping cylinder (318) is OCKL20×30S; The model of the auxiliary paving cylinder (308) is MAL20×75SCA.

5. The fully automatic male mold paving machine for bulletproof helmets according to claim 2 is characterized in that: The large sheet middle part pressure bonding and holding device (4) comprises 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, pressing and heating assembly installed on the bottom surface of the lower end of the Z-shaped connecting plate (401); The compression bonding reciprocating assembly comprises a compression 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 on the end of the cylinder body of the compression-bonding reciprocating cylinder (402), the ear seat B (407) 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 B (406); The reverse thrust assembly comprises a reverse thrust cylinder (408) installed vertically and a top plate (409) fixedly installed on the top of the piston rod of the reverse thrust cylinder (408); an upper right-angle folded plate A (410) and an upper right-angle folded plate B (411) are fixedly installed on both sides of the cylinder body of the reverse thrust cylinder (408); the bottom plates of the upper right-angle folded plate A (410) and the upper right-angle folded plate B (411) are fixedly installed 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 B (403); The lifting and pressing heating assembly comprises a lifting and pressing cylinder (412), a pressing disc (413), a heating rod (414), a temperature control probe (415) and a temperature-resistant silicone disc (416); An upper right-angle folded plate A (417) and a lower right-angle folded plate B (418) are respectively 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 A (417) and the lower right-angle folded plate B (418) are respectively 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 lower pressing disc (413) through a hinge plate, the heating rod (414) and the temperature control probe (415) are respectively installed in the installation holes of the side wall of the lower pressing disc (413) at intervals, and the temperature-resistant silicone disc (416) is bonded to the bottom surface of the lower pressing disc (413); The model of the lifting and pressing cylinder (412) is TN20×200S; The model of the reverse thrust cylinder (408) is TN20×30; The model of the compression-bonding reciprocating cylinder (402) is SU40×350S.

6. The fully automatic male mold paving machine for bulletproof helmets according to claim 2, characterized in that: The large sheet heating and soft pressing device (5) comprises a soft pressing reciprocating drive component, a soft pressing component and a guide component; The soft pressure reciprocating drive assembly comprises a U-shaped mounting frame (502) fixedly mounted between the upper disconnected sections (112) of the soft pressure upright column (102), a soft pressure 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 pressure reciprocating cylinder (501); the piston rod of the soft pressure reciprocating cylinder (501) passes through the end plate of the U-shaped mounting frame (502); The soft pressure component comprises a soft pressure base (504), a soft pressure rubber bag inner pressure plate (505), a soft pressure rubber bag (506) and an M-shaped heating belt (507); The middle of the outer arc surface of the soft pressure base (504) is fixed to the corresponding side of the cylinder fixed plate (503), and the inner pressure plate (505) of the soft pressure rubber bag is installed in the soft pressure rubber bag (506). The corresponding side surfaces of the inner pressure plate (505) of the soft pressure rubber bag and the soft pressure rubber bag (506) and the sheet laying head mold are concave, and the curvature of the concave part matches the curvature of the convex part of the sheet laying head mold; the soft pressure rubber bag (506) and the inner arc surface of the soft pressure base (504) are sealed and fixed all around; A filling regulating valve (508) for regulating the amount of liquid filled into the soft pressure rubber bag (506) is arranged on the upper part of the soft pressure base (504); a thin insulating cloth with adhesive inside that is slightly larger than the soft pressure rubber bag (506) is used to cover the M-shaped heating belt (507) and the inner arc surface of the soft pressure rubber bag (506); the M-shaped heating belt (507) is bonded to the inner side of the thin insulating cloth; The guide assembly comprises a linear bearing B (509) installed in a through hole on one side of an end plate of a U-shaped mounting frame (502) and a guide rod (510) with one end fixed to one side of a 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 B (509) through a gap; The model of the soft pressure reciprocating cylinder (501) is SI40×300; The model of the linear bearing B (509) is LBBR12.

7. The fully automatic male mold paving machine for bulletproof helmets according to claim 2 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 zones a, b, c, d, e, and f, and the three vacuum suction cups (602) in each zone 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); 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 mounted on the shaft head (609) of the stepped shaft (606), and 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 bottom plate of the motor mounting bracket (619) and its transmission shaft clearance passes through the bottom plate. The synchronous pulley B (616) is mounted on the transmission shaft of the stepper motor (618). ) 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); 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; the model of the stepping motor (618) is STM57100.

8. The fully automatic male mold laying machine for bulletproof helmets according to claim 2, 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 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 the two 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); 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 whose inner diameter is larger than the outer diameter of the vacuum suction cup mounting disc 714, and the vacuum suction cup mounting disc (714) is arranged in the bowl-shaped rubber airbag (717) through the disc through hole; 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.

9. The fully automatic male mold paving machine for bulletproof helmets 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 assembly 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 (303) arranged in the middle of the special-shaped connecting plate (302) 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 sleeved in the hot air outlet end of the straight pipe; 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-sheet 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 fully automatic male mold paving machine for bulletproof helmets according to claim 9, characterized in that: The models of the regulating cylinder A (815) and regulating cylinder B (817) are both MAL20×300CA; The model of the hot air blower (801) is SHL3 / ZYD-030B.

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