CN207263043U - A kind of new combined firework upper mold - Google Patents

Abstract

It the utility model is related to a kind of new combined firework upper mold, including push rod, fixed link, push plate, fixed plate, molding fireworks core group, the fixed link is vertically mounted in fixed plate, the fixed plate is equipped with some through holes, the push rod is connected through through hole with push plate, the push plate be located at the lower end of push rod and with push rod vertical connection, the bottom of the push rod is equipped with some molding fireworks core groups, each molding fireworks core group is composed by some single cores according to the shaped formation of combined firework, and the upper end of the core is fixedly connected with push plate.The utility model can form the new structure with gunpowder collection further groove in pressing mold, be conducive to improve launching effect, cost-effective.

Description

A kind of new combined firework upper mold

Technical field

It the utility model is related to a kind of manufacture mould of combined firework, and in particular to a kind of new combined firework upper mold.

Background technology

Traditional combined firework is typically all to be made of paper material, by several launching tube groups with yellow mud bottom Conjunction forms, what useful cordage was tied up, useful glue bonding, and also useful mould is integrally compressing.Due to papery fireworks Complex manufacturing technology：Cut a sheet of paper, chart drum, hack, mix solid flashing composition, bed mud pressing, air dry, the in a row, taper hole of monotubular bonding, the company of wearing draw Firewire, viscous fire insulation paper, row and row bond it is integral, will integrally be fastened with iron wire or adhesive tape.The loaded down with trivial details complexity of technique, and by weather shadow Sound is very big, and such as cloudy weather for several days running, avenge, severe winter etc. weather, paper web and mud bottom cannot dry in time, process below can not all carry out.

Therefore, slurry is passed through by compression molding, overall time shaping production combination using hydraulic machinery, mould in recent years Fireworks are by industry extensive use, and the shape of the combined firework after shaping is similar with conventional combination fireworks, its shape is generally rib Cylinder, cylinder etc..Parallel on the body of combined firework to be evenly distributed with some tubular housings, tubular housing is structurally and functionally It is similar with the monotubular of conventional combination fireworks, tubular housing upper port open, lower port closing, fireworks inner tank built in tubular housing and Propellant.But it passes fiery pattern and the sidepiece of conventional combination fireworks and passes fire to connect guiding structure different, ignited line knot using bottom Structure.The blind end of tubular housing opens up the vent through body bottom surface, and bottom surface is equipped with the lead of connection vent bottom opening, Lead is connected with each vent, is ignited the propellant built in above described tubular cavity by vent.Using hydraulic machinery, mould Slurry be can be found in into Chinese patent literature, Authorization Notice No. CN 101377395B, authorized announcement date by the technique of compression molding On April 11st, 2012, entitled " firework outer barrel, fire works display projectile shell and its making of compression molding ".

But since the mold design of the combined firework of existing compression molding is unreasonable, the combined firework of compression molding is deposited In following shortcoming：（1）Propellant in tubular housing is not concentrated, and gunpowder is more scattered, is distributed not in the bottom of tubular housing Uniformly, big to the active area of bottom when propellant is lighted, it is smaller to push up the active force of fireworks inner tank, influences in fireworks The firing altitude of effect part inside cylinder and inner cylinder；（2）Since propellant in the bottom of tubular housing disperses to stack, with fireworks Separated between inner cylinder by circular bulkheads paper, the bottom surface of circular bulkheads paper is contacted with propellant, often occur it is uneven, connect Jiggly situation is touched, causes course deviation often occur during firework launching, influences firework display effect, influences fireworks combustion Put safety.Therefore, the utility model is in order to overcome these shortcomings to improve the upper mold of combined firework compression molding.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of new combined firework upper mold.

The utility model uses following technical scheme：

A kind of new combined firework upper mold, including push rod, fixed link, push plate, fixed plate, molding fireworks core group, institute State fixed link to be vertically mounted in fixed plate, the fixed plate is equipped with some through holes, and the push rod passes through through hole and push plate phase Even, the push plate is located at the lower end of push rod and is equipped with some molding fireworks cores with push rod vertical connection, the bottom of the push rod Group, each molding fireworks core group are composed by some single cores according to the shaped formation of combined firework, the type The upper end of core is fixedly connected with push plate.

Further, the lower end of the core is equipped with medicine boss.

Further, the medicine boss is cylindrical boss or conical boss.

Further, the area of the upper surface of the medicine boss is less than the area of the lower face of the core, the medicine The upper surface of thing boss is connected with the lower face of the core.

Further, a transition boss is additionally provided between the medicine boss and the core, the transition boss is also Cylindrical boss or conical boss, the upper surface of the transition boss are connected with the lower face of the core, and the transition is convex The lower surface of platform is connected with the upper surface of the medicine boss.

Further, the lower end of the core is equipped with taper chamfering or arc angling with the medicine boss.

Further, the fuel tank equipped with heating oil is additionally provided with the fixed plate.

Further, the fuel tank is made of babinet and case lid.

Further, the fixed plate is the hollow structure plate with inner cavity, and the fuel tank passes through external pipe or inner tube Road is connected with the inner cavity of fixed plate.

The utility model has the following advantages：

The utility model the bottom of push rod be equipped with it is some molding fireworks core groups, if each molding fireworks core group by Do single core to be composed according to the shaped formation of combined firework, the upper end of the core is fixedly connected with push plate, described The lower end of core is equipped with medicine boss, and the medicine boss is cylindrical boss or conical boss.In compression molding, medicine Boss suppresses the gunpowder groove of corresponding size and shape in the bottom of the tubular housing of combined firework, concentrates propellant and fills out Fill in gunpowder groove, active area smaller to gunpowder groove of the high-temperature gas that drastically expands, effect when propellant burns Power is more concentrated, and the transmitting pressure bigger on unit area, not only increases firing altitude when fireworks inner tank is seted off, Er Qiejie The about dosage of propellant, cost is lower, faster, firework display effect is more preferable for emission rate.

In addition, the area of the upper surface of the medicine boss is less than the area of the lower face of the core, the medicine is convex The upper surface of platform is connected with the lower face of the core, and a transition boss is additionally provided between the medicine boss and the core, When compressing, a medicine groove with step and changeover portion is formed in the bottom of the tubular housing of combined firework, favorably Add medicine in combined firework, propellant is entered along changeover portion in medicine groove rapidly, improve medicine-feeding speed, can be further The concentration degree of medicine is improved, while is also beneficial to form plane close contact between the bottom surface of circular bulkheads paper and propellant, Uneven, the jiggly situation of contact is prevented, firework launching track is not shifted, improves firework display effect Fruit, improves the security of firework display.

Secondly, the utility model is equipped with the fuel tank equipped with heating oil in the fixed plate, and the fixed plate is band inner cavity Hollow structure plate, the fuel tank is connected by external pipe or internal pipeline with the inner cavity of fixed plate.In combined firework During compression molding, quickly combined firework can be heated, improve rate of drying.

Brief description of the drawings

Fig. 1 is the 3 D stereo schematic diagram of the utility model.

Fig. 2 is the front view of the utility model.

Fig. 3 is the structure diagram of the single core in the utility model.

In attached drawing, 1, molding fireworks core group, 2, push plate, 3, fixed plate, 4, case lid, 5, babinet, 6, fixed link, 7th, push rod, 8, core, 9, transition boss, 10, medicine boss, 11, chamfering.

Embodiment

As shown in Figs. 1-3, a kind of new combined firework upper mold, including push rod 7, fixed link 6, push plate 2, fixed plate 3, mould Fireworks core group 1 is pressed, the push rod 7, fixed link 6 are made of steel cylindrical tube or round steel, and the plate, fixed plate 3 are adopted Made of steel plate.

Fixed link 6 is installed in fixed plate 3 by way of welding or being threadedly coupled or be inlaid into interference fit, fixed Bar 6 and fixed plate 3 are orthogonal.Some through holes are drilled with fixed plate 3, the internal diameter size of the through hole is straight slightly larger than push rod 7 Footpath, the push rod 7 are connected through through hole with push plate 2, the push plate 2 be located at the lower end of push rod 7 and with 7 vertical connection of push rod.

The bottom of push rod 7 is equipped with some molding fireworks by way of welding or being threadedly coupled or be inlaid into interference fit Core group 1, each molding fireworks core group 1 are composed by some single cores 8 according to the shaped formation of combined firework, Generally by hexagon or square or rectangle arrangement, the upper end of each core 8 is fixedly connected with push plate 2.

The lower end of each core 8 is equipped with medicine boss 10 by way of turning or milling or casting, and the medicine is convex Platform 10 refers to that its shape is cylindrical boss or cone for forming the boss of placement transmitting medicine groove during mould molding Boss or regular triangular prism boss or square boss or other polyhedron boss.Preferably, the medicine boss 10 is circle Cylindrical end tangs or conical boss.In compression molding, the tubular cavity of cylindrical boss or conical boss in combined firework The bottom of body suppresses the gunpowder groove of corresponding size and shape, concentrates propellant and is filled in gunpowder groove, transmitting fire The high-temperature gas that drastically expands more concentrates the active area smaller of gunpowder groove, active force when medicine burns, on unit area Transmitting pressure bigger, not only increase firing altitude when fireworks inner tank is seted off, and saved the dosage of propellant, Cost is lower, and faster, firework display effect is more preferable for emission rate.

Preferably, the area of the upper surface of the medicine boss 10 is less than the area of the lower face of the core 8, the medicine The upper surface of thing boss 10 is connected with the lower face of the core 8.One is additionally provided between the medicine boss 10 and the core 8 Transition boss 9, the transition boss 9 are also cylindrical boss or conical boss, the upper surface of the transition boss 9 with it is described The lower face of core 8 is connected, and the lower surface of the transition boss 9 is connected with the upper surface of the medicine boss 10.The type The lower end of core 8 is equipped with taper chamfering 11 or arc angling 11 with the medicine boss 10.When compressing, in combined firework The bottom of tubular housing form a medicine groove with step and changeover portion, the medicine-feeding of advantageously combined fireworks, makes transmitting fiery Medicine can be entered in medicine groove rapidly along changeover portion, improve medicine-feeding speed, can further improve the concentration degree of medicine, while Be conducive to form plane close contact between the bottom surface of circular bulkheads paper and propellant, prevent uneven, contact not Stable situation, makes firework launching track not shift, and improves firework display effect, improves the safety of firework display Property.

Preferably, the fuel tank equipped with heating oil is additionally provided with the fixed plate 3, the fuel tank is by 4 groups of babinet 5 and case lid Into the babinet 5 is fixed in fixed plate 3 by welding, and refractory seals are used between the case lid 4 and babinet 5 Bar is tightly connected, and blending bolt is firm.The fixed plate 3 uses the hollow-core construction steel plate with inner cavity, and the fuel tank passes through outside Pipeline or internal pipeline are connected with the inner cavity of fixed plate 3.During the compression molding of combined firework, the heating oil in fuel tank Quickly combined firework can be heated, improve rate of drying.

The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to Above-described embodiment.It should be pointed out that for those skilled in the art, before the utility model principle is not departed from Some improvements and modifications put, are regarded as the scope of protection of the utility model.Each composition portion being not known in the present embodiment The available prior art is divided to be realized.

Claims (9)

1. A kind of 1. new combined firework upper mold, it is characterised in that：Including push rod, fixed link, push plate, fixed plate, molding fireworks Core group, the fixed link are vertically mounted in fixed plate, and the fixed plate is equipped with some through holes, and the push rod passes through through hole It is connected with push plate, the push plate is located at the lower end of push rod and is equipped with some moldings with push rod vertical connection, the bottom of the push rod Fireworks core group, it is each be molded fireworks core group by some single cores according to the shaped formation combination of combined firework and Into the upper end of the core is fixedly connected with push plate.
2. A kind of 2. new combined firework upper mold according to claim 1, it is characterised in that：The lower end of the core is equipped with Medicine boss.
3. A kind of 3. new combined firework upper mold according to claim 2, it is characterised in that：The medicine boss is cylinder Shape boss or conical boss.
4. A kind of 4. new combined firework upper mold according to claim 3, it is characterised in that：The upper table of the medicine boss The area in face is less than the area of the lower face of the core, and the upper surface of the medicine boss connects with the lower face of the core Connect.
5. A kind of 5. new combined firework upper mold according to claim 4, it is characterised in that：The medicine boss with it is described A transition boss is additionally provided between core, the transition boss is also cylindrical boss or conical boss, the transition boss Upper surface be connected with the lower face of the core, the lower surface of the transition boss and the upper surface phase of the medicine boss Even.
6. A kind of 6. new combined firework upper mold according to claim 5, it is characterised in that：The lower end of the core and institute State medicine boss and be equipped with taper chamfering or arc angling.
7. A kind of 7. new combined firework upper mold according to claim 1, it is characterised in that：It is additionally provided with the fixed plate Fuel tank equipped with heating oil.
8. A kind of 8. new combined firework upper mold according to claim 7, it is characterised in that：The fuel tank is by babinet and case Lid composition.
9. A kind of 9. new combined firework upper mold according to claim 7, it is characterised in that：The fixed plate is band inner cavity Hollow structure plate, the fuel tank is connected by external pipe or internal pipeline with the inner cavity of fixed plate.