CN208720916U - A kind of plastics fireworks inner tank of compression molding - Google Patents

Abstract

The utility model discloses a kind of plastics fireworks inner tanks of compression molding, the plastic cylinder top ports of compression molding are open, bottom nozzle is the closed end with cylinder integrated molding, the center of closed end is equipped with the igniting primer with cylinder integrated molding, the lower port of igniting primer is open, the closed end of the surrounding side wall connector drum of the lower port of flash hole pipe, the upper port closing of igniting primer, the side wall of igniting primer are equipped with leakage anther slit gap.Filling ignition charge slurry is squeezed out by leakage anther slit gap and is attached on igniting primer side wall in igniting primer, and the coagulated mass of pendency is formed after dry, which forms in cylinder after lighting and fire fireball, it is ensured that other intracorporal effect drugs of the cylinder that ignites；Production efficiency greatly improved, reduce production cost simultaneously, the humidity resistance of combined firework greatly improved in the production of finished product standard criterion suitable for mechanization.

Description

A kind of plastics fireworks inner tank of compression molding

Technical field

The utility model relates to a kind of combined firework inner cylinders.

Background technique

Combined firework is generally made of outer cylinder and inner cylinder, and outer cylinder loads propellant powder, and inner cylinder loads bright pearl and other effects medicine.It is existing Inner cylinder is all papery cylinder, it will generally pass through cylinder processed, pressure mud bottom, insert and draw, fill nitre and bright pearl, sealing, assembling and encapsulation etc. Process, production process is various, production efficiency is low, high production cost, the normalization of product or standard be not high, is unfavorable for machinery Change production line operation.

Utility model content

In order to solve above-mentioned drawback, technical problem to be solved by the utility model is to provide a kind of replacing for papery inner cylinder Dai Pin is conducive to improve production efficiency, reduces production cost, is easy to implement standardization and mechanization production.It is above-mentioned in order to solve Technical problem, the technical solution adopted in the utility model are a kind of plastics fireworks inner tanks of compression molding, including compression molding Plastic cylinder, cylinder top mouth are open, which is characterized in that the bottom nozzle of cylinder is the closed end with cylinder integrated molding, envelope The center of closed end is equipped with the igniting primer with cylinder integrated molding, and the lower port of igniting primer is open, and the four of the lower port of igniting primer The closed end of all side wall connector drum, the upper port closing of igniting primer, the side wall of igniting primer are equipped with leakage anther slit gap.

The beneficial effects of the utility model are, filling ignition charge in the igniting primer of the bottom end of the moulded plastic fireworks inner tank When slurry, can inside and outside the cylinder bottom nozzle between formed it is reliable pass fiery channel, medicine slurry of igniting is squeezed out and is sticked by leakage anther slit gap It is attached to igniting primer side wall, forms the coagulated mass of pendency after dry, which forms in cylinder after lighting and fire fireball, it is ensured that Other intracorporal effect drugs of the cylinder that ignites；Production efficiency greatly improved, reduce production cost simultaneously, finished product standard criterion is suitable The humidity resistance of combined firework greatly improved in suitable mechanization production.

Preferably, the bottom face of the cylinder leads fiery chamber equipped with taper, leads the lower port that fiery chamber is connected to the igniting primer. When ensuring that the propellant powder outside cylinder is lighted, powder gases light ignition charge in igniting primer by leading fiery chamber.

Preferably, several grooves or fin are uniformly distributed on the inner wall or outer wall of the cylinder.Open up the place of groove It is weakness, the place that fin is arranged is at reinforcement, and meaning is all that the difference of the ordering of structural strength is formed on barrel Distribution bursts convenient for barrel ordering, and explosion is uniform, so that the flower pattern specification that inner cylinder fires after tail and sibilant rale effect is excellent Beauty, clear, using effect is better than papery inner cylinder.Preferably, each groove or fin etc. divide the periphery of barrel wall.It is excellent Selection of land, the depth of the groove are the 40~60% of cylinder wall thickness.Especially 50%.

Preferably, the bottom face surrounding outer rim of the cylinder is rounded structure.Outer cylinder is packed into convenient for inner cylinder.

To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have Body embodiment is further described in detail the utility model.

Detailed description of the invention

Fig. 1 is the surface structure schematic diagram of the plastics fireworks inner tank of compression molding；

Fig. 2 is the schematic diagram of the section structure (not loading the state of firework gunpowder) of plastics fireworks inner tank；

Fig. 3 is the schematic diagram of the section structure (state for loading firework gunpowder) of plastic mould pressing inner cylinder.

Specific embodiment

Referring to attached drawing, reflect a kind of specific structure of the utility model.The plastics fireworks inner tank of the compression molding includes The plastic cylinder 1 of compression molding, 1 top ports of cylinder (in figure downward) are open, and the bottom nozzle of cylinder 1 is integrated with cylinder 1 Molding closed end, the center of closed end are equipped with the igniting primer with 1 integrated molding of cylinder, and igniting primer is relatively thick by what is be mutually linked Portion 8 and thinner section composition, the lower port 3 of igniting primer is open, the closing of the surrounding side wall connector drum 1 of the lower port 3 of igniting primer The upper port 6 at end, igniting primer is closed, and even circumferential is distributed three leakage anther slit gaps 7 on the side wall of igniting primer.The bottom of the cylinder 1 Fiery chamber 2 is led equipped with taper in end face, leads the lower port 3 that fiery chamber 2 is connected to the igniting primer.

In use, effect pyrotechnic composition 12 is loaded in the inner cavity of cylinder 1, leads trickle irrigation in fiery chamber 2 and igniting primer and be packed into slurry form Ignition charge 9,1 closed end of cylinder be placed in downward transmitting outer cylinder (being not drawn into figure) in propellant powder layer on, the bottom of the cylinder 1 End face surrounding outer rim is rounded structure.Outer cylinder is packed into convenient for inner cylinder.Propellant powder launches cylinder 1 after lighting, and fires simultaneously Propellant powder effect pyrotechnic composition 12 is lighted by ignition charge 9.The structure of the utility model is not only able to inside and outside cylinder bottom nozzle Between formed it is reliable pass fiery channel, moreover, ignition charge 9 is squeezed out by leakage anther slit gap 7 and is attached on the side wall of igniting primer thinner section On, the coagulated mass 10 of pendency is formed after package thinner section is dry, which forms in cylinder 1 after lighting and fires fireball, The intracorporal effect pyrotechnic composition 12 of the cylinder that ensures to ignite.Leading fiery chamber 2 and collecting powder gases ensures to light ignition charge 9.

Meanwhile into igniting primer when filling ignition charge 9, cylinder 1 is inverted as illustrated in the drawing (i.e. bottom nozzle upward, Top mouth down) so that the ignition charge 9 of wet flowing is dropped onto and is led in fiery chamber 2 and igniting primer and stiff solidification rapidly, igniting primer Structure can be avoided ignition charge it is not dry when drop into the inner cavity of cylinder 1.

In this example, it is uniformly distributed several grooves 5 on the inner wall of the cylinder 1, several fins 4 are uniformly distributed on outer wall.It opens If the place of groove is weakness, the place that fin is arranged is at reinforcement, and meaning is all the formation structural strength on barrel The difference distribution of ordering, bursts convenient for barrel ordering, and explosion is uniform.

1 wall of cylinder with a thickness of 1 millimeter, the depth of groove 5 is 0.5 millimeter.Groove 5 is more thin relative to other tube walls Weak, under internal high pressure effect, cylinder 1 divides explosion time along groove 5.Each groove 5 etc. divides the periphery of 1 side wall of cylinder to make The uniformity that must be burst is higher.So that the flower pattern specification that combined firework is seted off is graceful, clear, using effect is better than in papery Cylinder.Moreover, inner wall is excessively smooth for as plastic products, solid flashing composition, soil or glue sawdust, envelope are either used Mouth layer 11 is often difficult to reliably block port thereon, and the setting of groove 5 has effectively prevented this drawback.

The fin 4 of similarly principle, the setting of 1 outer wall of cylinder reinforces the intensity at the position, so that other position phases of barrel wall To more weak, and the differentiation of structural strength is formed on barrel, burst convenient for barrel wall ordering.It repeats no more.

Above-mentioned implementation is merely to clearly illustrate the technical solution of the utility model, and should not be understood as to this Utility model makes any restrictions.The utility model has well known a variety of substitutions or deformation in the art, is not taking off Under the premise of from the utility model in essence meaning, the protection scope of the utility model is each fallen within.

Claims (7)

1. a kind of plastics fireworks inner tank of compression molding, the plastic cylinder including compression molding, cylinder top mouth is open, feature It is, the bottom nozzle of cylinder is the closed end with cylinder integrated molding, and the center of closed end is equipped with and cylinder integrated molding Igniting primer, the lower port of igniting primer is open, the closed end of the surrounding side wall connector drum of the lower port of igniting primer, igniting primer Upper port closing, the side wall of igniting primer are equipped with leakage anther slit gap.

2. the plastics fireworks inner tank being pressed and molded as described in claim 1, which is characterized in that the bottom face of the cylinder is equipped with Taper leads fiery chamber, leads the lower port that fiery chamber is connected to the igniting primer.

3. the plastics fireworks inner tank being pressed and molded as claimed in claim 1 or 2, which is characterized in that the inner wall of the cylinder or Several grooves or fin are uniformly distributed on outer wall.

4. the plastics fireworks inner tank being pressed and molded as claimed in claim 3, which is characterized in that each groove or fin equal part The periphery of barrel wall.

5. the plastics fireworks inner tank being pressed and molded as claimed in claim 3, which is characterized in that the depth of the groove is cylinder The 40~60% of wall thickness.

6. the plastics fireworks inner tank being pressed and molded as claimed in claim 3, which is characterized in that the depth of the groove is cylinder The 50% of wall thickness.

7. such as the plastics fireworks inner tank of the described in any item compression moldings of claim 1,2,4,5,6, which is characterized in that the cylinder The bottom face surrounding outer rim of body is rounded structure.