CN110567325A - Device for firecracker production, production process completed by device and safe and environment-friendly firecracker produced by device - Google Patents

Device for firecracker production, production process completed by device and safe and environment-friendly firecracker produced by device Download PDF

Info

Publication number
CN110567325A
CN110567325A CN201910877633.3A CN201910877633A CN110567325A CN 110567325 A CN110567325 A CN 110567325A CN 201910877633 A CN201910877633 A CN 201910877633A CN 110567325 A CN110567325 A CN 110567325A
Authority
CN
China
Prior art keywords
firecracker
main body
hole
production
body piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201910877633.3A
Other languages
Chinese (zh)
Other versions
CN110567325B (en
Inventor
赵子刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201910877633.3A priority Critical patent/CN110567325B/en
Publication of CN110567325A publication Critical patent/CN110567325A/en
Application granted granted Critical
Publication of CN110567325B publication Critical patent/CN110567325B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B4/00Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
    • F42B4/04Firecrackers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B4/00Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
    • F42B4/30Manufacture

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Catching Or Destruction (AREA)
  • Toys (AREA)

Abstract

The invention provides a device for firecracker production, a production process completed by the device and a safe and environment-friendly firecracker produced by the device, and belongs to the technical field of firecrackers. The invention has the following beneficial effects: 1) the production automation degree is higher, and the production is easier to realize; 2) the equipment cost is greatly reduced, the production efficiency is improved by times, and the popularization and the use are easier; 3) the sound effect of the firecrackers is better, and the cost of the firecrackers is lower.

Description

Device for firecracker production, production process completed by device and safe and environment-friendly firecracker produced by device
Technical Field
The invention belongs to the technical field of firecrackers, and particularly relates to a device for producing firecrackers, a production process finished by the device and a safe and environment-friendly firecrackers produced by the device.
Background
at present, firecrackers are forbidden in many cities in China, and the traditional firecrackers are set off without harm: firstly, smoke dust is generated to form air pollution; secondly, the paper scraps after explosion fly everywhere to form environmental pollution; thirdly, the explosion of the traditional firecrackers is easy to hurt people and has potential safety hazard. However, the original source of firecrackers has more than 1000 years of history, and the firecrackers have beautiful connotation when being set off.
The applicant is dedicated to research and develop safe and environment-friendly firecrackers for decades, and selects plastic as a material to research and develop a product for one generation and another, so that the problems of the traditional firecrackers are solved, and the atmosphere of festival and celebration can be reserved. Representative products include:
The first generation, Chinese patent CN200610012598.1 "safety, environmental protection, energy saving type exposed firecrackers"; chinese patent CN200610012596.2 built-in firecrackers;
The second generation, Chinese patent CN201710299991.1 is an integrated firecracker and Chinese patent CN201710299979.0 is an internal firecracker.
the products are made of tough plastics, the barrel body is not damaged after the firecracker is set off, the firecracker can be repeatedly used after the firecracker is set off, and the problems of air pollution, environmental pollution and potential safety hazard are fundamentally solved.
However, there are places where refinement is needed in the automation of the production process and the sound effect of setting off firecrackers, the structure of firecrackers needs to be further improved, and the production process of firecrackers needs to be further improved. The existing safe environment-friendly firecracker main body piece is of a thin cylindrical structure, the upper part and the lower part of the thin cylindrical structure are difficult to distinguish when the main body structure is picked up on a production line, and if the main body structure is inverted, subsequent insertion and powder charging can not be carried out continuously.
in addition, the existing firecracker production process, such as Chinese patent CN201510267234.7 "an automatic assembly line of safe and environment-friendly firecrackers", is also developed by the applicant, realizes the automatic assembly of the safe and environment-friendly firecrackers, greatly reduces the manual service, reduces the production cost, improves the production efficiency, but still has the problems of high equipment cost and low production efficiency, and the device adopts adhesive tapes for sealing, so that the technical requirement on the equipment is high, the process is complex, and the cost of the adhesive tapes is also high.
Disclosure of Invention
the invention provides a device for firecracker production, a finished production process thereof and a safe and environment-friendly firecracker produced by the device, aiming at solving the problems that the existing firecracker production automation is difficult to realize and the like.
The invention provides a device for firecracker production, which is used for firecracker production and comprises a male disc, wherein the male disc comprises a bottom plate, a plurality of stand columns are uniformly distributed on the bottom plate, and firecracker main body pieces are sleeved on the stand columns during production.
The device for firecracker production further comprises a pressure plate, and the pressure plate is arranged at the top of the male plate.
The invention also provides a firecracker sealing process which is completed based on the device for firecracker production and comprises the following specific steps: after the sealing agent is added into the firecracker main body piece, vibration is carried out, and after vibration is finished, the sealing agent is compacted through a pressing disc.
In the device for producing firecrackers, the center of the upright post is provided with a longitudinal hole, the depth of the longitudinal hole is greater than the height of the upright post, the depth of the longitudinal hole is less than the sum of the height of the upright post and the height of the bottom plate, the outer diameter of the upright post is equal to the inner diameter of the firecracker main body piece, and the height of the upright post is one third of the height of the firecracker main body piece.
the device for producing firecrackers further comprises a master disc, wherein a plurality of through holes which are the same as the longitudinal holes in center line are formed in the master disc, and the through holes are abutted against or sleeved at the upper end of the firecracker main body piece.
The invention also provides a firecracker production process, which is completed based on the device for firecracker production, and comprises the following specific steps: the firecracker main body piece is sleeved on each upright column on the male disc, the mother disc is sleeved or abutted against the top of the firecracker main body piece and is inserted with a lead, the end part of the lead is inserted into the bottom of a longitudinal hole of the upright column piece, a solid lead agent is added into the firecracker main body piece, the firecracker production device vibrates, gunpowder and a sealing agent are continuously added into the firecracker main body piece, the firecracker production device vibrates, and then the sealing agent is compacted by the pressing disc.
The invention also provides a safe and environment-friendly firecracker which is produced by utilizing the firecracker production process and comprises a firecracker main body piece and a lead wire, wherein the firecracker main body piece is of a vertically symmetrical cylindrical structure, an inner hole of the cylindrical structure comprises an upper end hole, a lower end hole and a middle hole between the upper end hole and the lower end hole, which are vertically symmetrical, the diameter of the upper end hole and the diameter of the lower end hole are the same as the outer diameter of the upright post and are larger than the diameter of the; the middle hole is filled with a solid primer; gunpowder and a sealing agent are sequentially filled in the upper end hole from bottom to top; the lead extends from the gunpowder to the outside of the lower port.
the heights of the upper end hole and the lower end hole in the safe and environment-friendly firecracker are equal to the height of the upright post.
the outer wall of the firecracker main body piece in the safe and environment-friendly firecracker is provided with an annular groove.
In the safe and environment-friendly firecracker, a plurality of firecracker main body pieces are tied by using a main lead wire and a metal wire, and the firecracker main body pieces on two sides are sequentially connected through connecting wires arranged in the annular groove after the firecracker is tied.
The invention has the following beneficial effects: 1) the production automation degree is higher, and the production is easier to realize; 2) the equipment cost is greatly reduced, the production efficiency is improved by times, and the popularization and the use are easier; 3) the sound effect of the firecrackers is better, and the cost of the firecrackers is lower.
Drawings
Figure 1 is a schematic structural view of a male plate,
Figure 2 is a front view of the male plate,
3 figure 3 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 in 3 the 3 direction 3 of 3 the 3 male 3 plate 3 a 3- 3 a 3, 3
Figure 4 is a schematic view of the platen configuration,
Figure 5 is a schematic view of the structure of a master disc,
Figure 6 is a cross-sectional view of a master disc,
FIG. 7 is a schematic view showing the combined use state of the male disc, the mother disc and the pressing disc,
figure 8 is a schematic view of the construction of the firecracker body piece,
Figure 9 is a cross-sectional view of the firecracker body piece,
Figure 10 is a finished view of the firecracker body piece,
FIG. 11 is a diagram of a finished safe and environment-friendly firecracker,
In the figure: 1-male disc, 1.1-bottom plate, 1.2-upright post, 1.3-longitudinal hole, 2-platen, 3-mother disc, 3.1-through hole, 3.2-landing leg, 4-firecracker main body piece, 4.1-lead, 4.2-fixing primer, 4.3-gunpowder, 4.4-sealing primer, 4.5-annular groove, 5-main lead, 6-metal wire and 7-connecting wire.
Detailed Description
The embodiments of the present invention will be further explained with reference to the drawings.
example 1
The embodiment provides a device for firecracker production, which is used for firecracker production and comprises a male disc 1, wherein the male disc 1 comprises a bottom plate 1.1, a plurality of upright columns 1.2 are uniformly distributed on the bottom plate 1.1, and firecracker main body pieces 4 are sleeved on the upright columns 1.2 during production.
the device for firecracker production further comprises a pressure plate 2, wherein the pressure plate 2 is arranged at the top of the male plate 1.
In the device for producing firecrackers, the center of the upright post 1.2 is provided with a longitudinal hole 1.3, the depth of the longitudinal hole 1.3 is greater than the height of the upright post 1.2, the depth of the longitudinal hole 1.3 is less than the sum of the height of the upright post 1.2 and the height of the bottom plate 1.1, the outer diameter of the upright post 1.2 is equal to the inner diameter of the firecracker main body piece 4, and the height of the upright post 1.2 is one third of the height of the firecracker main body piece 4.
the longitudinal hole 1.3 comprises an upper inverted cone-shaped hole and a lower cylindrical hole which are positioned on the same central line, and the diameter of the lower end opening of the inverted cone-shaped hole is equal to that of the cylindrical hole.
The device for firecracker production further comprises a mother disc 3, a plurality of through holes 3.1 which are the same as the longitudinal holes 1.3 in center line are formed in the mother disc 3, and the through holes 3.1 abut against or are sleeved at the upper end of the firecracker main body piece 4. The through-hole 3.1 may be a cylindrical hole or an inverted conical hole.
The bottom surface of the master disc 3 is provided with four legs 3.2 which are supported on the male disc 1.
The use process of the device for producing firecrackers is as follows;
The male discs 1 are arranged on a conveying belt of an assembly line and conveyed to a firecracker main body piece mounting station, the firecracker main body pieces 4 are inserted on the upright posts 1.2 one by a manipulator and conveyed to a mother disc mounting station, the mother disc 3 covers the upper end of the firecracker main body pieces 4 and is conveyed to an inserting and leading station, a lead 4.1 penetrates through a through hole 3.1 and is inserted into a longitudinal hole 1.3, the depth of the longitudinal hole 1.3 controls the length of the lead 4.1 and is conveyed to a fixing and leading station, a fixing and leading agent 4.2 penetrates through the through hole 3.1 and falls into the firecracker main body pieces 4, and after the firecracker main body pieces are transferred to a vibration station to vibrate, transporting to a charging station, loading gunpowder 4.3 in the firecracker main body part 4 above the solid primer 4.2, transporting to a sealing station, loading the sealing agent 4.4 in the firecracker main body part 4 above the gunpowder 4.3, transferring to a vibration station for vibration, and (4) transporting to a compaction station, pressing a pressure plate 2 on a mother disc 3 for compaction, and then separating the male disc 1 and the mother disc 3 to obtain a finished product of the firecracker main body piece 4.
The arrangement of the upright columns 1.1 on the male disc 1 realizes the quick positioning of the firecracker main body piece 4, the longitudinal holes 1.3 play a role of a lead ruler, and the length of the lead 4.1 is controlled to be positioned in gunpowder 4.3 and not to extend into the fixing primer 4.2, so that the problem of poor blasting effect caused by the fact that the gunpowder 4.3 extends into the fixing primer 4.2 is solved. The mother disc 3 prevents the chemicals from being scattered on the bottom plate 1.1 when the solid primer 4.2, the gunpowder 4.3 and the sealing agent 4.4 are added subsequently. After the pressing disc 2 is used for compacting the sealing agent 4.4, the sound is louder when the firecrackers are set off.
Example 2
The embodiment provides a firecracker sealing process which is completed by the device for firecracker production based on the embodiment 1, and the firecracker sealing process comprises the following specific steps: after the sealing agent 4.4 is added into the firecracker main body piece 4, vibration is carried out, and after the vibration is finished, the sealing agent 4.4 is compacted through the pressing disc 2.
After the sealing agent 4.4 is subjected to the compaction process, the sound is louder when the firecrackers are set off.
Example 3
the embodiment provides a firecracker production process, which is completed by the device for firecracker production based on the embodiment 1, and comprises the following specific steps: each column 1.2 on the male disc 1 is sleeved with a firecracker main body piece 4, the mother disc 3 is sleeved with or abutted against the top of the firecracker main body piece 4, a fuse is inserted, the end part of a lead 4.1 is inserted into the bottom of a longitudinal hole 1.3 of the column piece 1.2, a fuse fixing agent 4.2 is added into the firecracker main body piece 4, the firecracker production device vibrates, gunpowder 4.3 and sealing agent 4.4 are continuously added into the firecracker main body piece 4, the firecracker production device vibrates, and then the sealing agent 4.4 is compacted by the pressure plate 2.
Through two times of vibration, the solid primer 4.2 and the sealing agent 4.4 are more full, safer and better in sound effect.
Example 4
the embodiment 4 provides a safe and environment-friendly firecracker which is produced by the firecracker production process of the embodiment 3, and comprises a firecracker main body piece 4 and a lead 4.1, wherein the firecracker main body piece 4 is of a cylindrical structure which is symmetrical up and down, an inner hole of the cylindrical structure comprises an upper end hole, a lower end hole and a middle hole between the upper end hole and the lower end hole, the upper end hole and the lower end hole are symmetrically arranged up and down, the diameter of the upper end hole is the same as that of the lower end hole, the outer diameter of the upper end hole is the same as that of the upright column 1.2, and the; the middle hole is filled with a solid primer 4.2; 4.3 of gunpowder and 4.4 of sealing agent are sequentially filled in the upper end hole from bottom to top; the lead 4.1 extends out of the lower port from the gunpowder 4.3.
After the upper end hole and the lower end hole structure which are arranged in an up-and-down symmetrical mode are adopted, the upper portion and the lower portion of the firecracker main body piece 4 do not need to be distinguished when the main body structure is picked up on a production line, production barrier-free is achieved more easily, the automation degree is improved, cost is effectively reduced, the sealing agent 4.4 is used for replacing the existing adhesive tape, the setting-off effect is loud, the production process is simplified, and therefore the manufacturing cost of products and equipment is reduced greatly, the cost of the existing production line is more than 3 million, the embodiment 1 is applied to the production line production embodiment of the device for production, and after the firecracker, the cost is only one third of the existing cost.
The height of the upper end hole and the lower end hole in the safe and environment-friendly firecracker is equal to that of the upright post 1.2.
In the safe and environment-friendly firecracker, the outer wall of the firecracker main body piece 4 is provided with an annular groove 4.5, so that two adjacent firecracker main body pieces 4 can be conveniently connected, the firecracker main body pieces 4 are prevented from being exploded and flying when the firecracker is exploded, and the safety is improved.
In the safe and environment-friendly firecracker, a plurality of firecracker main body pieces 4 are tied by using a main lead 5 and a metal wire 6, and the firecracker main body pieces 4 on two sides are sequentially connected through connecting wires 7 arranged in annular grooves 4.5 after the firecracker is tied. The main leads 5, the metal wires 6 and the connecting wires 7 are used for connecting the firecracker main body pieces 4 into a whole, so that the firecrackers are still connected in series after being set off and are not divided into four parts and five parts, the pollution to the environment is reduced, and the recycling is facilitated.

Claims (10)

1. The device for producing firecrackers is characterized by comprising a male disc, wherein the male disc comprises a bottom plate, a plurality of stand columns are uniformly distributed on the bottom plate, and firecrackers main body pieces are sleeved on the stand columns during production.
2. The device for producing firecrackers as claimed in claim 1, further comprising a pressure plate, wherein the pressure plate is arranged on the top of the male plate.
3. A firecracker sealing process is completed based on the device for firecracker production as claimed in claim 2, and is characterized by comprising the following specific steps: after the sealing agent is added into the firecracker main body piece, vibration is carried out, and after vibration is finished, the sealing agent is compacted through a pressing disc.
4. The device for producing firecrackers as claimed in claim 1 or 2, wherein the column has a longitudinal hole in the center, the depth of the longitudinal hole is greater than the height of the column, the depth of the longitudinal hole is less than the sum of the height of the column and the height of the base plate, the outer diameter of the column is equal to the inner diameter of the firecracker main body, and the height of the column is one third of the height of the firecracker main body.
5. The device for producing firecrackers as claimed in claim 4, further comprising a master disc, wherein the master disc is provided with a plurality of through holes having the same center line with the longitudinal holes, and the through holes abut against or are sleeved on the upper end of the firecracker main body piece.
6. A firecracker production process is completed based on the device for firecracker production of claim 5, and is characterized by comprising the following specific steps: the firecracker main body piece is sleeved on each upright column on the male disc, the mother disc is sleeved or abutted against the top of the firecracker main body piece and is inserted with a lead, the end part of the lead is inserted into the bottom of a longitudinal hole of the upright column piece, a solid lead agent is added into the firecracker main body piece, the firecracker production device vibrates, gunpowder and a sealing agent are continuously added into the firecracker main body piece, the firecracker production device vibrates, and then the sealing agent is compacted by the pressing disc.
7. A safe and environment-friendly firecracker produced by the firecracker production process as claimed in claim 6, which is characterized by comprising a firecracker main body piece and a lead wire, wherein the firecracker main body piece is of a vertically symmetrical cylindrical structure, an inner hole of the cylindrical structure comprises an upper end hole, a lower end hole and a middle hole between the upper end hole and the lower end hole, which are vertically symmetrical, and the diameter of the upper end hole and the diameter of the lower end hole are the same as the outer diameter of an upright post and are larger than the diameter of the middle hole;
The middle hole is filled with a solid primer;
gunpowder and a sealing agent are sequentially filled in the upper end hole from bottom to top;
The lead extends from the gunpowder to the outside of the lower port.
8. The safe and environment-friendly firecracker as claimed in claim 7, wherein the height of the upper end hole and the lower end hole is equal to the height of the upright post.
9. the safe and environment-friendly firecracker as claimed in claim 7, wherein the outer wall of the firecracker main body piece is provided with an annular groove.
10. The safe and environment-friendly firecracker as claimed in claim 9, wherein the firecracker main body pieces are tied by using a main lead and a metal wire, and the firecracker main body pieces on two sides are sequentially connected through connecting wires arranged in the annular groove after the firecracker is tied.
CN201910877633.3A 2019-09-17 2019-09-17 Device for firecracker production and finished production process thereof, and safe and environment-friendly firecracker produced by device Active CN110567325B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910877633.3A CN110567325B (en) 2019-09-17 2019-09-17 Device for firecracker production and finished production process thereof, and safe and environment-friendly firecracker produced by device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910877633.3A CN110567325B (en) 2019-09-17 2019-09-17 Device for firecracker production and finished production process thereof, and safe and environment-friendly firecracker produced by device

Publications (2)

Publication Number Publication Date
CN110567325A true CN110567325A (en) 2019-12-13
CN110567325B CN110567325B (en) 2024-03-26

Family

ID=68780612

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910877633.3A Active CN110567325B (en) 2019-09-17 2019-09-17 Device for firecracker production and finished production process thereof, and safe and environment-friendly firecracker produced by device

Country Status (1)

Country Link
CN (1) CN110567325B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110953935A (en) * 2019-12-20 2020-04-03 沈阳熠辉自动化技术有限公司 Matrix type whip-loading tray and material guiding device

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES1036514U (en) * 1997-02-20 1997-08-16 Pirotecnia Turis S L Device for connecting to a timed fuse firecrackers. (Machine-translation by Google Translate, not legally binding)
KR19980065680U (en) * 1997-05-06 1998-12-05 위-퀘이 첸씨에 Improved Matrix Firecrackers and Manufacturing Methods
CN103033094A (en) * 2012-12-09 2013-04-10 张慧珺 Safe and environmentally-friendly firecracker with two serially-connected exposed bodies
CN203024660U (en) * 2012-11-29 2013-06-26 许建新 Firecracker packaging device
CN105865270A (en) * 2016-06-16 2016-08-17 广州市君尚环保科技有限公司 Air firecracker unit and tandem body thereof
CN106871734A (en) * 2017-02-17 2017-06-20 卢山河 A kind of combined firework with transmitting hole and multiple tracks back-fire relief structure
CN107192301A (en) * 2017-05-02 2017-09-22 赵子刚 A kind of integral type firecrackers
CN208936879U (en) * 2018-09-18 2019-06-04 浏阳市鑫祥烟花制作有限公司 A kind of fireworks production compaction apparatus having a safety feature
CN210833266U (en) * 2019-09-17 2020-06-23 赵子刚 Device for firecracker production and safe and environment-friendly firecracker produced by device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES1036514U (en) * 1997-02-20 1997-08-16 Pirotecnia Turis S L Device for connecting to a timed fuse firecrackers. (Machine-translation by Google Translate, not legally binding)
KR19980065680U (en) * 1997-05-06 1998-12-05 위-퀘이 첸씨에 Improved Matrix Firecrackers and Manufacturing Methods
CN203024660U (en) * 2012-11-29 2013-06-26 许建新 Firecracker packaging device
CN103033094A (en) * 2012-12-09 2013-04-10 张慧珺 Safe and environmentally-friendly firecracker with two serially-connected exposed bodies
CN105865270A (en) * 2016-06-16 2016-08-17 广州市君尚环保科技有限公司 Air firecracker unit and tandem body thereof
CN106871734A (en) * 2017-02-17 2017-06-20 卢山河 A kind of combined firework with transmitting hole and multiple tracks back-fire relief structure
CN107192301A (en) * 2017-05-02 2017-09-22 赵子刚 A kind of integral type firecrackers
CN208936879U (en) * 2018-09-18 2019-06-04 浏阳市鑫祥烟花制作有限公司 A kind of fireworks production compaction apparatus having a safety feature
CN210833266U (en) * 2019-09-17 2020-06-23 赵子刚 Device for firecracker production and safe and environment-friendly firecracker produced by device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110953935A (en) * 2019-12-20 2020-04-03 沈阳熠辉自动化技术有限公司 Matrix type whip-loading tray and material guiding device

Also Published As

Publication number Publication date
CN110567325B (en) 2024-03-26

Similar Documents

Publication Publication Date Title
CN210833266U (en) Device for firecracker production and safe and environment-friendly firecracker produced by device
CN110567325A (en) Device for firecracker production, production process completed by device and safe and environment-friendly firecracker produced by device
CN103697759A (en) Base of combined fireworks
GB1135921A (en) Polytetrafluoroethylene moulding powder and its preparation
CN213041104U (en) Safe and environment-friendly firecracker and device for firecracker production
CN108176852B (en) A kind of vacuum-pumping formula explosive compaction metal powder device and its application method
CN103438765A (en) Firecracker and manufacturing method thereof
CN206648533U (en) A kind of safety fireworks that Charge is inverted based on axial inner cylinder
JPS56161137A (en) Metal mold for compression molding and manufacture of resin molding using said metal mold
CN211012692U (en) Non-coupling air spacer column for charging
CN201152722Y (en) Saw dust case of firework bullet and constituted firework bullet
CN204117314U (en) P rolling land shake automatic alarm
CN103217068A (en) Improvement structure for compression-molding combined fireworks
CN106152883A (en) A kind of rocket type fireworks and combinations thereof body
CN207057329U (en) A kind of high-density powder metallurgy product trimmer
CN201993037U (en) Novel safety firework tube
CN206780736U (en) A kind of material storage tube of pelletizing production line
CN210331670U (en) Ejection device for creating atmosphere
CN201126334Y (en) Combined firework capable of recycling
CN219428588U (en) Paper pulp molding packaging device for vertical placement of cone container
CN110756798A (en) Magnetic core die
CN213778804U (en) Through type single body, firecrackers and production device
CN212300130U (en) Fireworks structure with aerial annular effect
CN109631681A (en) Fireworks lattice structure application specific standard gunpowder block and preparation method thereof
CN220437255U (en) Dampproofing wax sealing device of spray cylinder

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant