CN1022747C - Method for making high-strength marine air bag shaped by lapping - Google Patents

Abstract

The present invention discloses a manufacture process of a rolling air bag for a ship. A bag body of an air bag is formed by that raw rubber plates with chinlon cord yarns are cut and spliced according to the size of the air body; then, a plurality of cut raw rubber plates are stacked together to be wound, overlapped and formed, and are integrally bonded by adhesive. The inconvenience for making an inner tire and winding and forming on a blank tire is omitted by the new process. The manufacture process is simple, convenient and feasible, and the bag body is symmetrical and firm and is convenient to repair. Compared with a bag body made by an old process, the bag body has the advantages of good air tightness and long service life.

Description

Method for making high-strength marine air bag shaped by lapping

The present invention relates to the manufacturing process of air sac container.

At present, in domestic many dockyard, the upper and lower water conservancy project skill of craft adopted boats and ships air bag water conservancy project skill up and down, as using hoisting air chamber jacking boats and ships, so that beat pier or tear pier open, the use scroll airbag moves the upper and lower water of boats and ships etc.About the manufacturing process of air-bag for ship, the inner tube of a tyre formula air bag with high intensity of introducing in the existing disclosed CN85303958 of the having patent, its method is that natural fiber or chemical fiber are twined and be bonded on the inner tube of a tyre, the inner tube of a tyre is the offset plate or the rubber of one or more layers sulfuration.The CN87101374 patent application discloses a kind of employing to press the vinylon cord offset plate of rubber Wrapping formed on the inner tube of a tyre in addition, the manufacture method of the air-bag for ship that the press cure of heating then forms.Use proof through production practice and producer, preceding a kind of air bag is because working strength is not enough, fragile, stopped producing and use, though a kind of production technology in back has adopted the rubber plate of the higher band cord of intensity, but owing to be Wrapping formed on the inner tube of a tyre, the one, the difficulty of make is big, and balloon shapes is difficult to well-balanced, and technology is difficult to grasp, the 2nd, owing to the utricule unshapeliness, influence the service life of air bag.

The manufacturing process that the purpose of this invention is to provide the high-strength air-bag for ship of a kind of inner tube free of practical and type tire.

This high-strength marine air bag shaped by lapping is made up of tubular pouch body and coniform capsule head.Its method for making is: the tubular pouch body is bonded type by the rubber coiled sheet of sandwich tape nylon cord (or other syntheticfibress, natural fiber, metal filament cord) around overlap joint, the size and the disposing way of each layer rubber plate are, nexine rubber plate cord trend is parallel with the capsule body, its length equals the length sum of capsule body and two capsule heads, and its width is spliced into the girth that equals the capsule body.Middle level rubber plate piles up on nexine rubber plate, moves under its top and reserves overlap joint with stitching, and its cord trend is vertical with nexine offset plate cord, and its length equals capsule body girth, and its width splicing equals capsule height degree; Outer rubber plate piles up on the rubber plate of middle level, moves under its top equally and reserves overlap joint with stitching, and its cord trend and length and width are all handled by middle level offset plate mode; It piles up mode and the cord trend is identical with outer rubber plate with size outer field again rubber plate, if having skin to handle according to this again.Then, with the bonding and compacting of above multilayer rubber plate, the multilayer rubber plate that will be bonded as one is again reeled inwards with adhesives, and each layer overlaps with seam with the overlap joint of reserving respectively and be bonding with adhesives, makes the tubular pouch body.The capsule head of this air-bag for ship is coniform, adopt coniform iron sheet mould during making, the rubber plate that the nexine offset plate of capsule head adopts capsule body nexine rubber plate two ends to reserve, and it is cut into vertical offset plate bar, top which floor offset plate of capsule head then adopts trapezoidal offset plate piece and presses one overlapping mode also to make with adhesives is bonding with one; At each layer of capsule head and capsule body junction, it is bonding to adopt the rubber lath of vertical cord to twine overlap joint, with sealing with is connected capsule head and capsule body joint, at last, sends the whole capsule body of making to vulcanizing tank through high temperature vulcanized and moulding.

This high-strength air-bag for ship has adopted shaped by lapping, and the technology that is bonded as one is again made more feasible, easy, and utricule is more well-balanced, firm, has saved the inconvenience of making the inner tube of a tyre and twining on the type tire, has improved product design and has made work efficiency.As scratch the rolling air-bag for ship of shaped by lapping with the rubber coiled sheet of 3 layers of band vinylon cord, proof is functional in using practice.It allows working pressure greater than 2 kilograms per centimeter ², air-tightness is good, has prolonged service life.And can adopt different number of plies rubber plates to process according to customer requirement, breakage occurs and also can adopt the overlap joint bonding mode to repair.

Description of drawings.

Fig. 1, Fig. 2 are the part sectional view of roller air-bag for ship of the present invention.Wherein (1) is the capsule body; (2) be the capsule head; (3) be Nang Zui.

Fig. 3 is Figure 1A-A place section-drawing, and wherein (4) are the nexine offset plate; (5) be the middle level offset plate; (6) be outer offset plate.

Fig. 4 is the placement state scheme drawings of three layers of rubber plate before the overlap joint of reeling.Wherein (7) are the overlap joint seam.Below in conjunction with embodiment and accompanying drawing the present invention is elaborated.

This enforcement is that rubber coiled sheet with three layers of band nylon cord is around overlap joint and the high-strength marine scroll airbag of moulding.Every pulling force of polyamide fibre cord fabric thread is 22 kilograms, and the rubber plate adopts No. 101 rubber of standard, and adhesives adopts gasoline.To make long 30 meters of utricule, the scroll airbag that capsule body girth is 3.1 meters is an example, nexine rubber plate (4) is according to cord trend and capsule body (1) laid parallel, its length is cut into 30 meters, width is spliced into 3.1 meters, middle level rubber plate (5) moves towards vertical pendulum according to cord and is put on the nexine rubber plate, its length equals capsule body girth, width is spliced into and equals capsule height degree, move 30 centimeters under its top and make overlap joint with stitching (7), and brush gasoline is bonded as one with two-layer rubber plate, outer rubber plate (6) piles up on the rubber plate of middle level, its cord trend and length are identical with middle level rubber plate with width, move under the same top when piling up and reserve 30 centimeters work overlap joints with seam, with gasoline two-layer rubber plate are sticked to one equally.Three layers of rubber plate that will be bonded into one again give certain pressure, as leveling compacting with a roller with iron.At last, three layers of rubber plate of compacting are reeled inwards, each layer overlaps bonding respectively with seam with the overlap joint of reserving, like this, make tubular capsule body.Two acrocyst heads are coniform, use coniform iron sheet mould during making, for put, the delivery tool is convenient, capsule is when three layers overlap joint is bonding, a segment length wouldn't be bonding in the middle of can reserving.Capsule head innermost layer is that the nexine rubber plate two ends by the capsule body are cut into strip and are layered on the mould, the second layer carries out the tooled joint overlap joint with a plurality of trapezoidal rubber plate that is cut into, and bonding with gasoline, then with cord longitudinally the rubber lath twine and be bonded in capsule head and capsule body junction, to gain in strength.The second layer also is with a plurality of trapezoidal rubber plate tooled joint overlap joints, and bonding.Its cord trend of the second layer and the 3rd layer of trapezoidal offset plate is vertical with the cord of ground floor.After making two capsule heads, capsule head mould tool is taken out from the centre joint, with gasoline that the capsule body centre joint is bonding again, and with whole airbag aeration.After the inflation again in capsule head and capsule body junction with cord longitudinally the rubber lath twine a circle and bonding, this offset plate bar outer again with broad not with the thick 5 millimeters rubber lath adhesive seal of cord.Simultaneously, the longitudinal lap joint commissure of capsule body outside also with this not with the offset plate bar adhesive seal of cord.For improving the air bag working strength, the rubber plate of capsule body and capsule head outermost layer band cord all uses thick 2 millimeters thickening nylon cord rubber plate.All outermost layer seams of capsule body and capsule head are all used thick 5 millimeters not with the rubber lath adhesive seal of cord outward.After whole air bag is made, utricule is put into direct vulcanizing tank vulcanize, in 4 kilograms per centimeter ²Down sulfuration 50-90 minute of pressure.

Claims (5)

1, a kind of manufacture method of the high-strength marine air bag shaped by lapping made from the offset plate that has nylon cord (or other syntheticfibress, natural fiber, metal filament cord), it is characterized in that tubular capsule body (1) is that rubber coiled sheet by the sandwich tape nylon cord is around overlap joint and moulding, the size and the disposing way of each layer rubber plate are: nexine rubber plate (4) is according to cord trend and capsule body laid parallel, its length equals the length of capsule body and two capsule heads, and its width equals the girth of capsule body; Middle level rubber plate (5) piles up on nexine rubber plate, moves under the top and reserves overlap joint with stitching (7), and its cord trend is vertical with nexine offset plate cord, and its length slightly is longer than capsule body girth, and its width is spliced into and equals capsule height degree; Outer rubber plate (6) piles up on the rubber plate of middle level, move under the same top and reserve overlap joint with stitching, its cord trend and size dimension are identical with middle level rubber plate, the size of outer again rubber plate and disposing way are identical with outer rubber plate, then, with the bonding and compacting of above multilayer rubber plate, the multilayer rubber plate that will be bonded as one is again reeled inwards with adhesives, each layer overlaps with seam with the overlap joint of reserving respectively and is bonding with adhesives, makes tubular capsule body; The capsule head is conical, adopt coniform mould during making, capsule head innermost layer is cut into the offset plate bar with the two ends of the nexine rubber plate of capsule body, above which floor carries out fissure of displacement overlap joint with a plurality of trapezoidal offset plate pieces respectively, and be bonded as one with adhesives, and in outermost capsule head and capsule body junction, twine overlap joint and bonding with the rubber lath of vertical cord, at last, with the utricule made through high temperature vulcanized and moulding.

2, the manufacture method of air-bag for ship as claimed in claim 1, it is characterized in that tubular capsule body be rubber coiled sheet by three layers of continuous synthetic fibre cord around overlap joint and moulding, the capsule head also is to make taper shape by the mutual tooled joint overlap joint of the trapezoidal rubber plate of polylith.

3,, it is characterized in that described outermost layer band cord rubber plate is thickening rubber plate as the manufacture method of claim 1 and 2 described air-bag for ship.

4, the manufacture method of air-bag for ship as claimed in claim 1 or 2 is characterized in that all outmost lap side seam places of capsule body and capsule head all adopt the rubber lath adhering and sealing of not being with cord.

5, the manufacture method of air-bag for ship as claimed in claim 1 or 2 is characterized in that described adhesives is a gasoline.

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