A hot air blowing device for a tablet

Abstract

The utility model relates to a kind of material sheet hot air blowing device, it includes the hot air blower installed in the outside of rack, hot air main pipe installed on the air outlet of hot air blower, large material sheet hot air blowing component and small material sheet hot air blowing component installed in the air outlet of hot air main pipe;The utility model large material sheet hot air blowing nozzle is below large material sheet, and hot air blowing makes the glue layer of large material sheet soften;The piston rod telescoping of adjusting cylinder A and adjusting cylinder B drives L-shaped small material sheet hot air blowing nozzle to send out and retract, small material sheet lower layer glue film is warmed and softened, to facilitate next step sheet deformation, after hot air blowing heating 3-5 seconds, adjusting cylinder A and adjusting cylinder B piston rod retract and L-shaped small material sheet hot air blowing nozzle is retracted to original position, so that material sheet can be fully deformed on the surface of sheet head mould when sheet, tightly wrap large and small material sheet sheet head mould, avoid the gap between material sheet multilayer.

Description

TECHNICAL FIELD

[0001] The utility model relates to a material sheet hot air blowing device and belongs to the technical field of bulletproof product production and processing of equipment and tools. BACKGROUND

[0002] At present, the bulletproof helmet is made of n large material sheets (integral cutting sheets) and m small material sheets (elliptical cutting sheets added to strengthen the strength of the top of the helmet) on the sheet laying head mold; the large and small material sheets are cut according to the size from the impregnated aramid fabric, each large material sheet has six cutting seams, i.e. is divided into six material petals, and the whole is in the shape of a fan blade; in the production process, a plurality of large material sheets are usually laid on the sheet laying head mold first, in order to make up for the thickness difference accumulated at the top and the lower part of the helmet, one small material sheet is laid on the top of the helmet, and the large and small material sheets are laid back and forth until the last two layers are large material sheets to prevent the small material sheet from leaving marks on the inner and outer surfaces of the helmet.

[0003] In the traditional production process of the bulletproof helmet, the sheet laying process is always manually operated; generally, an operator pulls the material sheet with one hand and heats the material sheet with a hot air gun with the other hand, and then lays the sheets one by one; if not careful, the fingers may be scalded or the material sheet may be damaged; each operator has different techniques, and the helmets laid by different operators are different; some layers of material sheets are too loose, some layers of material sheets are not heated for enough time, the material sheets are not effectively bonded, some layers of material sheets are heated for too long, causing the glue layer to fail, some layers of material sheets are pulled too hard, the large material sheets are deformed, the local thickness is too thick, the local material is insufficient, the over-thick material sheet is damaged during pressing, the local insufficient material sheet is wrinkled, the bulletproof performance and appearance quality of the helmet are greatly reduced, and many defective products are produced; due to the material of the bulletproof helmet, the defective products cannot be repaired and repaired, and can only be scrapped, causing great loss and waste. SUMMARY

[0004] The utility model solves the technical problem of providing a material sheet hot air blowing device that softens the glue layer of the material sheet and fully deforms the material sheet on the surface of the sheet laying head mold and tightly packs the sheet laying head mold during sheet laying.

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

[0006] The material sheet hot air blowing device comprises a hot air blower installed outside a rack, a hot air main pipe installed on the air outlet of the hot air blower, a large material sheet hot air blowing assembly and a small material sheet hot air blowing assembly installed on the air outlet of the hot air main pipe.

[0007] The utility model discloses a big material piece blows hot -air subassembly including the big material piece hot -air distributor of installation on the hot -air main pipe air outlet, the air valve A of installation in the big material piece hot -air distributor branch outlet, the heat -resistant hose of installation in the air valve A air outlet and the flat round cone big material piece blows hot -air nozzle of installation in the heat -resistant hose air outlet, the heat -resistant hose passes through the long hole on the frame workstation board, the big material piece blows hot -air nozzle and is fixed in the special-shaped connecting plate middle part of big material piece piece clamping and laying device on the frame through the bolt on the clamp, the big material piece blows hot -air nozzle is towards the laying head mould, the hot -air distributor is the cone cylinder, and 6 branch outlets are evenly provided in the hot -air distributor top.

[0008] The utility model discloses a small material piece blows hot -air subassembly including the bypass pipe of installation on the hot -air main pipe, the air valve B of installation in the bypass pipe, the L shape small material piece hot -air nozzle of installation in the bypass pipe air outlet and the air nozzle telescopic subassembly, the bypass pipe top is inclined to be the straight pipe to the downside, the L shape small material piece hot -air nozzle gap sleeve is installed in the straight pipe hot -air outlet end.

[0009] The utility model discloses a hot -air nozzle telescopic subassembly including the adjusting cylinder A and the adjusting cylinder B of installation on the both sides of straight pipe, the cylinder body end of adjusting cylinder A and adjusting cylinder B installs on the outside of straight pipe through the fixed seat, adjusting cylinder A both sides, the piston rod extension, contraction of adjusting cylinder A and adjusting cylinder B drive L shape small material piece hot -air nozzle and send out and retract from the straight pipe export end, install the hot -air circulation pipe between the air inlet and the air outlet of hot -air fan, install air valve C on the hot -air circulation pipe.

[0010] The utility model discloses the model of hot -air fan is SHL3 / ZYD-030B.

[0011] The utility model discloses the model of adjusting cylinder A and adjusting cylinder B are all MAL20x300CA;

[0012] The utility model discloses the positive effect as follows: the utility model discloses the big material piece blows hot -air nozzle and is located below the big material piece, and the hot -air blowing makes the glue layer of big material piece soften, the piston rod extension, contraction of adjusting cylinder A and adjusting cylinder B drive L shape small material piece hot -air nozzle and send out and retract from the straight pipe export end, the lower layer glue film of small material piece is softened by warming, and it is favorable to the next step of laying piece deformation, after blowing hot -air heating 3-5 seconds, adjusting cylinder A and adjusting cylinder B piston rod retract and make L shape small material piece hot -air nozzle retract to the original position, make material piece laying piece when on the surface of laying head mould can fully deform (that is, material piece fiber can fully slip), tightly wrap big and small material piece laying head mould, avoid the gap between the material piece multilayer. ACCURACY OF DRAWINGS

[0013] ATTACH Figure 1 It is the structure schematic drawing of the utility model;

[0014] ATTACH Figure 2 It is the big material piece blows hot -air nozzle installation position structure schematic drawing of the utility model;

[0015] attached Figure 3 is a structural schematic view of the rack of the utility model;

[0016] attached Figure 4 is a structural schematic view of the large sheet;

[0017] attached Figure 5 is a structural schematic view of the small sheet;

[0018] attached Figure 6 is a structural schematic view of the assembly of the bulletproof helmet sheet clamping and laying device;

[0019] attached Figure 7 is a structural schematic view of the assembly of the small sheet taking and feeding and laying and pressing and sticking device;

[0020] attached Figure 8 is a structural schematic view of the installation of the annular heating belt. DETAILED DESCRIPTION

[0021] as shown in the attached Figure 1 , 2 , the sheet hot air blowing device of the utility model comprises a hot air blower 801, a hot air main pipe 805 installed at the air outlet of the hot air blower 801, a large sheet hot air blowing assembly and a small sheet hot air blowing assembly installed at the air outlet of the hot air main pipe 805, the hot air blower 801 is installed at the outer side of the rack, and the model of the hot air blower 801 is SHL3 / ZYD-030B.

[0022] as shown in the attached Figures 1-4 , the large sheet hot air blowing assembly of the utility model comprises a large sheet hot air distributor 806 installed at the air outlet of the hot air main pipe 805, a wind 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 wind 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 large sheet hot air blowing nozzle 810 is fixed on two screw holes arranged in the middle of the special-shaped connecting plate 302 and facing the laying head die through the bolts on the clamp 809, and the hot air distributor 806 is in the shape of a cone cylinder, and six branch outlets are uniformly arranged at the top. The special-shaped connecting plate 302 is installed on the bulletproof helmet sheet clamping and laying device, the large sheet hot air blowing nozzle 810 moves with the bulletproof helmet sheet clamping and laying device, so that the large sheet hot air blowing nozzle 810 is always below the large sheet 2 during the laying process.

[0023] as shown in the attached Figure 1 , 5As shown, the small material piece hot air blowing assembly includes bypass pipe 816 installed on hot air main pipe 805, air valve B 814 installed on bypass pipe 816, L-shaped small material piece hot air nozzle 812 installed on the air outlet of bypass pipe 816, and a hot air nozzle telescopic assembly. The top of bypass pipe 816 is inclined downward as a straight pipe, the hot air outlet end of L-shaped small material piece hot air nozzle 812 is upwardly bent as an arc, and the hot air inlet end of L-shaped small material piece hot air nozzle 812 is gap-fitted on the hot air outlet end of the straight pipe (the hot air inlet end of L-shaped small material piece hot air nozzle 812 can move in the gap in the straight pipe under external force, and the leaked hot air between the gap of the straight pipe and L-shaped small material piece hot air nozzle 812 can be ignored). The hot air nozzle telescopic assembly includes adjusting cylinder A 815 and adjusting cylinder B 817 installed on both sides of the straight pipe. The cylinder body end of adjusting cylinder A 815 and adjusting cylinder B 817 is installed on the outside of the straight pipe through fixing seat 813, and the piston rod end of adjusting cylinder A 815 and adjusting cylinder B 817 is installed on both sides of L-shaped small material piece hot air nozzle 812 through blowing pipe connecting angle plate. The piston rod of adjusting cylinder A 815 and adjusting cylinder B 817 is extended and retracted to drive L-shaped small material piece hot air nozzle 812 to be sent out and retracted from the outlet end of the straight pipe. When small material piece 10 is sent to the upper side of paving head mold 601, the piston rod of adjusting cylinder A 815 and adjusting cylinder B 817 is extended at the same time as the piston rod of adjusting cylinder A 815 and adjusting cylinder B 817 is extended when small material piece 3 is sent to the upper side of paving head mold 601, and the air outlet of L-shaped small material piece hot air nozzle 812 is sent out to align with the small material piece lower rubber film stopped by three vacuum suction cups B 715 inside the bowl-shaped metal cover 716 and is stopped by three vacuum suction cups B 715. Blowing hot air will warm and soften it, which is beneficial to the deformation of the next step of paving, and the model of adjusting cylinder A 815 and adjusting cylinder B 817 is MAL20x300CA.

[0024] In order to improve the working efficiency of hot air blower 801 and reduce heat loss, hot air circulation pipe 803 is installed between air inlet 802 and air outlet of hot air blower 801, and air valve C 804 is installed on hot air circulation pipe 803. When the hot air volume is small or the hot air blowing is temporarily not used, air valve C 804 is opened, and part or all of the hot air is returned to the air inlet end of hot air blower 801. In this way, the air inlet temperature is improved, and the work of the hot air blower is reduced. The hot air blower will automatically adjust the heating power or stop heating.

[0025] As shown in the accompanying drawings Figure 4 , 6As shown, the bulletproof helmet band piece clamping and laying device comprises an auxiliary laying cylinder 308 laterally hinged in the lower inner side of the flexible pressing column 102 of the frame, a laying lifting cylinder 301 vertically hinged at the piston rod end of the auxiliary laying cylinder 308, a special-shaped connecting step plate 302 fixedly installed at the top end of the laying lifting cylinder 301, and right and left band piece clamping assemblies of the same structure installed at both ends of the special-shaped connecting step plate 302; the right and left band piece clamping assemblies are symmetrically arranged with the center of the sector-shaped top plate 326 in the middle of the special-shaped connecting step plate 302. A lower base mounting plate 304 is installed at one side of the bottom of the cylinder body of the laying lifting cylinder 301, and the base of the lower base mounting plate 304 is hinged with a lower hinge base 305 installed on the workbench plate 103 of the frame; the lower inner side of the flexible pressing column 102 is hinged with the cylinder body end of the laterally arranged auxiliary laying cylinder 308 through an installation base 307; an upper mounting plate 306 corresponding to the piston rod end of the auxiliary laying cylinder 308 is installed at the other side of the upper part of the cylinder body of the laying lifting cylinder 301; and the piston rod end of the auxiliary laying cylinder 308 is hinged with the ear seat outside the upper mounting plate 306 through a connecting ear plate 309. The right band piece clamping assembly comprises a downward right rotary rotating clamping cylinder 310, a right lower tooth-shaped plate 311, and a right upper tooth-shaped pressing plate 312; the corresponding end faces of the right lower tooth-shaped plate 311 and the right upper tooth-shaped pressing plate 312 are provided with meshing teeth; a circular through hole A 313 is arranged in the middle of the right lower tooth-shaped plate 311; height adjustment sleeves A 314 and B 315 are arranged at both sides of the top surface of the cylinder body of the downward right rotary rotating clamping cylinder 310; long rod bolts A 316 and B 317 at both sides of the right lower tooth-shaped plate 308 are respectively gap-connected with the cylinder body of the downward right rotary rotating clamping cylinder 310 through the height adjustment sleeves A 314 and B 315; and the piston rod of the downward right rotary rotating clamping cylinder 310 is fixed with the right upper tooth-shaped pressing plate 312 through the circular through hole A 313; the downward movement of the piston rod of the downward right rotary rotating clamping cylinder 310 drives the right upper tooth-shaped pressing plate 312 to mesh with the right lower tooth-shaped plate 311. The left band piece clamping assembly comprises a downward left rotary rotating clamping cylinder 318, a left lower tooth-shaped plate 319, and a left upper tooth-shaped pressing plate 320; a circular through hole B 321 is arranged in the middle of the left lower tooth-shaped plate 319; height adjustment sleeves C 322 and D 323 are arranged at both sides of the top surface of the cylinder body of the downward left rotary rotating clamping cylinder 318; long rod bolts C 324 and D 325 at both sides of the left lower tooth-shaped plate 319 are respectively gap-connected with the cylinder body of the downward left rotary rotating clamping cylinder 318 through the height adjustment sleeves C 322 and D 323; and the piston rod of the downward left rotary rotating clamping cylinder 318 is fixed with the left upper tooth-shaped pressing plate 320 through the circular through hole B 321; the downward movement of the piston rod of the downward left rotary rotating clamping cylinder 318 drives the left upper tooth-shaped pressing plate 320 to mesh with the left lower tooth-shaped plate 319.

[0026] As shown in the accompanying drawings Figure 1 , 5, 7, 8, the small material piece taking feeding and laying and pressing and sticking device includes a slide rail A202 installed on the bottom surface of the main beam 101 of the machine frame, a sliding block C707 installed on the right side of the slide rail A202, a taking feeding reciprocating lifting assembly installed on the bottom surface of the sliding block C707, and a laying and pressing assembly installed on the bottom of the taking feeding reciprocating lifting assembly. The laying and pressing assembly includes a vacuum chuck mounting disc 714 fixedly installed on the bottom of the taking feeding reciprocating lifting assembly, three material taking vacuum chucks B715 fixedly and evenly installed on the vacuum chuck mounting disc 714 in a ring shape with the center of the vacuum chuck mounting disc 714 as the axis, a bowl-shaped metal outer cover 716 fixedly installed on the bottom of the connecting flat plate 711, and a bowl-shaped rubber air bag 717 arranged in the inner cavity of the bowl-shaped metal outer cover 716. The suction disc ports of the three material taking vacuum chucks B715 are downward, the side wall interlayer of the bowl-shaped rubber air bag 717 is inflated and sealed, an inflation nozzle 718 is installed on the side wall of the bowl-shaped rubber air bag 717, the inflation nozzle 718 passes through the through hole D719 on the bowl-shaped metal outer cover 716 to connect the bowl-shaped rubber air bag 717 and the bowl-shaped metal outer cover 716, and an annular heating belt 720 (i.e. two ends downwardly leading out to connect to the power supply, not a complete ring) is arranged on the upper part of the inner cavity of the bowl-shaped rubber air bag 717. The top of the bowl-shaped metal outer cover 716 and the bowl-shaped rubber air bag 717 is provided with a disc passing hole with an inner diameter larger than the outer diameter of the vacuum chuck mounting disc 714, and the vacuum chuck mounting disc 714 is arranged in the bowl-shaped rubber air bag 717 through the disc passing hole. The taking feeding reciprocating lifting assembly includes a taking feeding reciprocating air cylinder 701 arranged horizontally, a small material piece lifting air cylinder A702 arranged vertically, a small material piece lifting air cylinder B703 arranged vertically, and a vacuum material taking lifting air cylinder 704 arranged vertically. The cylinder body end of the taking feeding reciprocating air cylinder 701 is hinged to the air cylinder mounting U-shaped seat 706 installed on the bottom surface of the right end of the main beam 101 through the air cylinder mounting lug seat 705. A door frame shaped frame 708 is fixedly installed on the bottom surface of the sliding block C707. The piston rod end of the taking feeding reciprocating air cylinder 701 is fixedly installed on the bottom surface of the top plate of the door frame shaped frame 708 through a right-angle connecting plate 713. A supporting flat plate 709 is fixedly installed on the bottom surface of the door frame shaped frame 708. Cylinder rod passing holes 710 are arranged at both ends of the supporting flat plate 709 outside the door frame shaped frame 708. The cylinder body ends of the small material piece lifting air cylinder A702 and the small material piece lifting air cylinder B703 are fixedly installed on the top surfaces of both ends of the supporting flat plate 709. The piston rods of the small material piece lifting air cylinder A702 and the small material piece lifting air cylinder B703 respectively pass through the cylinder rod passing holes 710 and are fixed on both sides of the connecting flat plate 711 arranged below the supporting flat plate 709. The cylinder body bottom surface of the vacuum material taking lifting air cylinder 704 is fixed to the middle part of the connecting flat plate 711 through a mounting angle piece 712. The front end of the piston rod of the vacuum material taking lifting air cylinder 704 passes through the middle part square hole A721 of the connecting flat plate 711 and is connected to the top surface of the vacuum chuck mounting disc 714. The upper cylinder body of the vacuum material taking lifting air cylinder 704 passes through the middle part square hole B of the supporting flat plate 709.

[0027] Finally, it is explained that the above only the preferred embodiments of the present application, and not to limit the present application, any modification, equivalent replacement or improvement, etc. made within the spirit and principles of the present application, should be included in the scope of protection of the present application.

Claims

1. A hot air blowing device for a web, characterized in that It comprises a hot air blower (801) installed outside the frame, a hot air main pipe (805) installed at the air outlet of the hot air blower (801), a large sheet hot air blowing assembly and a small sheet hot air blowing assembly installed at the air outlet of the hot air main pipe (805).

2. The hot air blowing device for a web according to claim 1, wherein The large sheet hot air blowing assembly comprises a large sheet hot air distributor (806) installed at the air outlet of the hot air main pipe (805), a wind 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 wind 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) on the frame workbench plate (103); the large sheet hot air blowing nozzle (810) is fixed in the middle of the special-shaped connecting plate (302) of the large sheet sheet-piercing clamping and laying device on the frame through the bolts on the clamp (809); The large sheet hot air blowing nozzle (810) faces the sheet laying head die; The hot air distributor (806) is a conical cylinder, and six branch outlets are uniformly arranged at the top of the hot air distributor (806).

3. The hot air blowing device for a web according to claim 1, wherein The small sheet hot air blowing assembly comprises a bypass pipe (816) installed on the hot air main pipe (805), a wind valve B (814) installed on the bypass pipe (816), an L-shaped small sheet hot air blowing nozzle (812) installed at the air outlet of the bypass pipe (816), and a wind nozzle telescopic assembly; The top of the bypass pipe (816) is inclined downward to form a straight pipe, and the L-shaped small sheet hot air blowing nozzle (812) is sleeved at the gap of the hot air inlet end of the straight pipe.

4. A web hot air blowing device according to claim 3, wherein The wind nozzle telescopic assembly comprises adjusting cylinders A (815) and adjusting cylinders B (817) installed on both sides of the straight pipe; the cylinder bodies of the adjusting cylinders A (815) and the adjusting cylinders B (817) are installed outside the straight pipe through the fixing seat (813), and the piston rod ends of the adjusting cylinders A (815) and the adjusting cylinders B (817) are installed on both sides of the L-shaped small sheet hot air blowing nozzle (812) through the blowing pipe connecting angle plate. The piston rod of the adjusting cylinder A (815) and the adjusting cylinder B (817) drives the L-shaped small sheet hot air blowing nozzle (812) to send out and retract from the outlet end of the straight pipe. A hot air circulating pipe (803) is installed between the air inlet (802) and the air outlet of the hot air blower (801), and a wind valve C (804) is installed on the hot air circulating pipe (803).

5. The material sheet hot air blowing device according to claim 1, characterized by The model of the hot air blower (801) is SHL3 / ZYD-030B.

6. A web hot air blowing device according to claim 4, wherein The models of the adjusting cylinders A (815) and the adjusting cylinders B (817) are both MAL20×300CA.

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