CN206540475U - A kind of firework external cylinder of papery back cover - Google Patents
A kind of firework external cylinder of papery back cover Download PDFInfo
- Publication number
- CN206540475U CN206540475U CN201720212770.1U CN201720212770U CN206540475U CN 206540475 U CN206540475 U CN 206540475U CN 201720212770 U CN201720212770 U CN 201720212770U CN 206540475 U CN206540475 U CN 206540475U
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- CN
- China
- Prior art keywords
- external cylinder
- firework external
- papery
- back cover
- cylinder
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Abstract
The utility model discloses a kind of firework external cylinder of papery back cover, include the firework external cylinder body of the papery of roll-forming, the circumference barrel of the firework external cylinder body port is integrally bent to cylinder lumen；Device is glued in the bending in the circle cardboard covering of cylinder lumen, and circle cardboard closes the mesopore of kink.The generally full paper construction of the firework external cylinder, it is lightweight, easily reclaim；Good leak tightness and structural strength height；Moisture resistance is better than mud bottom；It is simultaneously easy to process, it is widely applicable, traditional shale back cover firework external cylinder can be substituted comprehensively.
Description
Technical field
The present invention relates to a kind of fireworks part, the firework external cylinder that especially paper is rolled.
Background technology
According to National Standard of the People's Republic of China GB10631-2004《Fireworks and crackers safety and quality》And GB19593-
2004《Fireworks and firecrackers combined firework》Deng the definition of regulatory documents, combined firework is the fireworks production combined by multiple monotubulars
Product.One monotubular is exactly a fireworks paper tube, and the inner cylinder of effect medicine is loaded due to often to load in monotubular, also referred to as described in the industry
Monotubular is outer barrel or firework external cylinder.
Firework external cylinder is based on performance requirement, it is necessary to is rolled and formed using paper.Rolling two ports of paper web all can only be
Open state.In the prior art, the bottom nozzle of firework external cylinder is closed by the mud layer for the system of building of pressurizeing.The presence increase of the mud layer
Fireworks finished weight, causes cost of transportation to increase；Also result in the discarded paper web after setting off and reclaim difficult；And the making of mud layer
Although employing special mechanical equipment, however it remains process is various, low production efficiency the problem of.
It is always the technical course pursued overcome in the industry so replacing mud layer to close firework external cylinder bottom nozzle using paper material
Topic.But outer barrel and confining bed need to bear firework gunpowder to fire formed impacting with high pressure, its performance requirement is high.Build mud processed
Technology succession in the industry for many years is condensed, up to the present, in the industry still without suitable alternative as traditional handicraft in bottom
Case.
The outer barrel for having compression molding at present comes out, and cylinder and bottom end closure are all to use the disposable die forming of slurry.But
It is that it can only substitute on portioned product with there is limitation and roll paper web；Simultaneously its material can not recycling, no
Beneficial to environmental protection.
Utility model content
In order to solve above-mentioned drawback, technical problem to be solved in the utility model is to provide a kind of suitable for paper roll
The papery port closed mechanism of the firework external cylinder of system, structural strength is high.In order to solve the above-mentioned technical problem, the utility model is used
Technical scheme be that a kind of firework external cylinder of papery back cover includes the firework external cylinder body of the papery of roll-forming, its feature exists
In the circumference barrel of the firework external cylinder body port is integrally bent to cylinder lumen；Circle cardboard of the device in cylinder lumen
Covering is glued in the bending, and circle cardboard closes the mesopore of kink.
Using above-mentioned technical proposal, circumference barrel all entirety at barrel port is bent to inner chamber, and kink constitutes one
Hollow annular base, circle cardboard is covered out of cylinder lumen and is glued on the annular base, so that thorough closed cylinder
Bottom nozzle.Because the kink and barrel are integrated structure in itself, bonding strength is high；The barrel of infolding is due to footpath simultaneously
Diminish to size, kink extruding gauffer tightens in cylinder lumen, the ring-shaped base construction intensity maximum constituted；Circle cardboard
Covering is glued on annular base, the mesopore of annular base is enclosed, while further enhancing integrally-built intensity and knot
Structure stability.Above each point comprehensive function so that the papery back cover closed barrel port and can bear high pressure powder gases
Percussion.
Preferably, the angle that the barrel is bent to inner chamber is 90~180 degree.So that annular base supporting role is stronger,
Bulk strength and stability are more preferable after being glued with circle cardboard.
From the foregoing, it will be observed that the beneficial effects of the utility model are, the generally full paper construction of the firework external cylinder is lightweight,
Easily reclaim；Good leak tightness and structural strength height；Moisture resistance is better than mud bottom；It is simultaneously easy to process, it is widely applicable, it can substitute comprehensively
Traditional shale back cover firework external cylinder.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is firework external cylinder surface structure schematic diagram (non-bending state)；
Fig. 2 is firework external cylinder vertical profile internal structure schematic diagram (non-bending state)；
Fig. 3 is firework external cylinder vertical profile internal structure schematic diagram (bending state, non-device justifies cardboard)；
Fig. 4 be firework external cylinder vertical profile internal structure schematic diagram (bending state, device circle cardboard)；
Fig. 5 is embodiment bending mold vertical profile internal structure schematic diagram；
Fig. 6 is firework external cylinder surface structure schematic diagram (bending state).
Embodiment
Referring to accompanying drawing, reflect a kind of concrete structure of the present utility model, the firework external cylinder of the papery back cover includes rolling
Circumference barrel 102 at the firework external cylinder body 1 of the papery of shaping, the port 101 of the firework external cylinder body 1 is overall to cylinder
Inner chamber is bent；The angle that the barrel is bent to inner chamber is 140 degree (the A angles i.e. shown in Fig. 3 are 40 degree).Device is in cylinder lumen
Circle cardboard 2 covering be glued in the bending.Circle cardboard 2 closes the mesopore 103 of kink.
The bending of the firework external cylinder can use various ways, such as：
1. glue infiltration needs the circumference barrel 102 at the barrel port 101 of bending；
2. the mould arcwall 301 shown in Fig. 5 is enclosed on the barrel port portion outer wall after infiltration, the round bar inner core of mould
The cylinder lumen of 302 insertion firework external cylinders；One side revolving fireworks outer barrel or mould, while imposing opposite pressure, complete bending
Processing；
3. from the another port press-in circle cardboard of firework external cylinder, it is allowed to covering and is glued in the bending；Produced after drying
Finished product.
Above-mentioned implementation is merely to clearly illustrate the technical solution of the utility model, and it is not intended that to this
Utility model makes any limitation.The utility model has known a variety of replacements or deformation in the art, is not taking off
On the premise of from the utility model essential meaning, protection domain of the present utility model is each fallen within.
Claims (2)
1. a kind of firework external cylinder of papery back cover, includes the firework external cylinder body of the papery of roll-forming, it is characterised in that described
The circumference barrel of firework external cylinder body port is integrally bent to cylinder lumen；Device is covered in the circle cardboard of cylinder lumen to be glued
In the bending, circle cardboard closes the mesopore of kink.
2. a kind of firework external cylinder of papery back cover as claimed in claim 1, it is characterised in that what the barrel was bent to inner chamber
Angle is 90~180 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720212770.1U CN206540475U (en) | 2017-03-07 | 2017-03-07 | A kind of firework external cylinder of papery back cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720212770.1U CN206540475U (en) | 2017-03-07 | 2017-03-07 | A kind of firework external cylinder of papery back cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206540475U true CN206540475U (en) | 2017-10-03 |
Family
ID=59941037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720212770.1U Expired - Fee Related CN206540475U (en) | 2017-03-07 | 2017-03-07 | A kind of firework external cylinder of papery back cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206540475U (en) |
-
2017
- 2017-03-07 CN CN201720212770.1U patent/CN206540475U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171003 Termination date: 20200307 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |