CN109485529B - A kind of spice current equalizer for propellant powder extruder - Google Patents
A kind of spice current equalizer for propellant powder extruder Download PDFInfo
- Publication number
- CN109485529B CN109485529B CN201811286619.8A CN201811286619A CN109485529B CN 109485529 B CN109485529 B CN 109485529B CN 201811286619 A CN201811286619 A CN 201811286619A CN 109485529 B CN109485529 B CN 109485529B
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- Prior art keywords
- aperture
- piston
- spice
- section
- outer cylinder
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Classifications
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0033—Shaping the mixture
- C06B21/0075—Shaping the mixture by extrusion
Abstract
A kind of spice current equalizer for propellant powder extruder, including outer cylinder, die body, piston and rubber packing；Piston is made of piston only and piston rod and rubber disc, and piston only bottom is arranged fluted, top surface and is provided with the venthole communicated with groove, and rubber disc is fixed on piston only bottom, and the vallecular cavity of groove is made to become air storage chamber；The inner hole of outer cylinder is from top to bottom followed successively by aperture D1 section, aperture D2 section, aperture D3 section, D2 > D1, D3=D1；The identical medicine outlet hole of multiple shape sizes is offered on die body, through-hole identical with the drug hole site on die body, quantity, size and shape is offered on rubber packing, each through-hole is aligned with the corresponding medicine outlet hole on die body respectively thereon when rubber packing is connected with die body；Piston only is mounted in the D1 section of aperture, and rubber packing is mounted in the D3 section of aperture, and die body is covered on outer cylinder bottom and is connected with outer tube wall, and aperture D2 section and rubber packing top surface form spice extrusion chamber.
Description
Technical field
The invention belongs to propellant powder extrusion forming technology fields, are related to the spice that one is used for propellant powder extruder and flow dress
It sets.
Background technique
Propellant powder is the gunpowder for completing projectile task, and in order to regularly discharge its energy, propellant powder is necessary
With specific shape.The main method for processing forming of propellant powder is extrusion, i.e., the propellant powder that will be plasticized with certain pressure
Spice is squeezed out from mold, and stickiness flowing occurs for propellant powder spice in extrusion process, viscoelastic deformation is generated, to be had
The powder column of certain shapes size.
It is slow positioned at the spice flow velocity of extrusion chamber core, be located at extrusion chamber periphery however, when existing propellant powder extruder squeezes
The spice flow velocity at place is fast, causes to be less than at extrusion chamber periphery in same time positioned at the spice discharge of extrusion chamber core
Spice discharge, thus be both unfavorable for it is subsequent cut medicine process, cause the waste of spice, it is fine and close also to will affect the powder column that squeezes out
The uniformity of degree.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of spices for propellant powder extruder to flow
Device, to keep the propellant powder extruder spice flow velocity of its extrusion chamber everywhere when squeezing balanced.
By researching and analysing discovery, the spice flow velocity of extrusion chamber core is caused in existing propellant powder extruder extrusion process
Slowly, the fast basic reason of spice flow velocity at extrusion chamber periphery is: the frictional force between spice be greater than spice and outer tube inner wall it
Between frictional force.Therefore, the technical solution adopted by the present invention is that: 1. increase spice extrusion chamber size, make spice extrusion chamber
The diameter that diameter is greater than piston only makes to live to keep apart outer tube inner wall and piston in the extrusion process to spice
The whole region of plug effect only exists the frictional force between spice, and there is no the frictional force between spice and outer tube inner wall, to disappear
Except the basic reason that the spice flow velocity of extrusion chamber core is slow, the spice flow velocity at extrusion chamber periphery is fast.2. being set in piston only
Air storage chamber is set, and the bottom surface of air storage chamber is made by flexible rubber, when use will be filled with inert gas in gas chamber, utilize gas
The adaptation function of body balances in use process pressure suffered by spice in extrusion chamber, to further make extrusion chamber everywhere
Spice flow velocity it is balanced.3. flexible rubber packing is arranged in spice extrusion chamber bottom, opened up on rubber packing and mould
Drug hole site on body, quantity, the identical through-hole of size and shape, and make each through hole center line on rubber packing respectively with
Corresponding drug centerline hole on die body point-blank, due to elastic rubber liner on through-hole aperture extruding force increase
When can become smaller, size can be gradually recovered when extruding force reduces, thus the spice caused by changing because of extruding force can be improved
The unbalanced problem of flow velocity.
Spice current equalizer of the present invention for propellant powder extruder, including outer cylinder, die body, piston and rubber lining
Pad；The piston only and piston rod and rubber disc that the piston is made by metal material form, and piston only bottom is provided with recessed
Slot, top surface are provided with the venthole communicated with the groove, the size of rubber disc and the matching grooves, and rubber disc is fixed on work
Plug body bottom simultaneously covers the groove, and the vallecular cavity of groove is made to become air storage chamber；The inner hole of the outer cylinder is from top to bottom followed successively by
Aperture D1 section, aperture D2 section, aperture D3 section, aperture D1 is identical as the outer diameter nominal dimension of piston only and matches to be dynamic
It closes, the aperture aperture D2 > D1, the aperture aperture D3=D1, the thickness h 1 of the height h2 < piston only of aperture D2 section；The mould
The shape and size and outer cylinder bottom mating of body, and the identical medicine outlet hole of multiple shape sizes, the rubber are offered on die body
The shape and size of liner are matched with the aperture D3 section of outer cylinder, and are offered on rubber packing and the drug hole location on die body
It sets, quantity, the identical through-hole of size and shape；Rubber packing and die body are connected, and each through-hole on rubber packing should be made when connected
Drug centerline hole corresponding on die body is point-blank respectively for center line；The piston only of the piston is mounted on outer cylinder
Aperture D1 section in, the rubber packing is mounted in the aperture D3 section of outer cylinder, and the die body is covered on outer cylinder bottom simultaneously
It is connected with outer tube wall, the aperture D2 section of outer cylinder and rubber packing top surface form spice extrusion chamber.
The above-mentioned spice current equalizer for propellant powder extruder, preferred rubber face of trying to get to the heart of a matter are concordant with piston only bottom surface.
The above-mentioned spice current equalizer for propellant powder extruder, the preferably aperture aperture D2=D1+2/3L~aperture D1+L,
The L is the wall thickness of outer cylinder aperture D1 section.
Spice current equalizer of the present invention for propellant powder extruder, preferred rubber disk are made by compounded rubber, multiple
There are many models for closing rubber, such as model SMR10 compounded rubber, model STR20 compounded rubber, model TTR20 compounded rubber
Deng.
Spice current equalizer of the present invention for propellant powder extruder, the piston only of production and the metal of piston rod
The preferred medium carbon steel of material or low-alloy steel.
Spice current equalizer of the present invention for propellant powder extruder is the component part of propellant powder extruder, is used
When spice is packed into the aperture D2 section of outer cylinder and rubber packing top surface is formed in spice extrusion chamber, then by piston and outer cylinder group
It closes, and inert gas is filled with into the air storage chamber of piston by the venthole on piston only, the molding of propellant powder can be carried out
Processing.The preferred nitrogen of inert gas, the indoor gas pressure control of gas storage is in 0.3Mpa~0.8Mpa when use.
Compared with the prior art, the invention has the following beneficial effects:
1, the spice current equalizer of the present invention for propellant powder extruder, since spice extrusion chamber is by the aperture of outer cylinder
D2 section is formed with rubber packing top surface, and the aperture aperture D2 > D1 (the outer diameter nominal dimension phase of aperture D1 and piston only
Together), i.e. aperture D2 is greater than the outer diameter of piston only, thus the spice flow velocity for eliminating extrusion chamber core is slow, at extrusion chamber periphery
The fast basic reason of spice flow velocity, spice flow velocity and the extrusion chamber periphery of extrusion chamber core can be achieved in spice extrusion process
The spice flow velocity at place is identical or essentially identical.
2, the spice current equalizer of the present invention for propellant powder extruder, since its piston is by piston only, piston
Bar and rubber disc composition, piston only bottom is arranged fluted, top surface and is provided with the venthole communicated with the groove, rubber disc
It is fixed on piston only bottom and covers the groove, so that the vallecular cavity of groove is become air storage chamber, when use is filled in air storage chamber
Inert gas balances in use process pressure suffered by spice in extrusion chamber using the adaptation function of gas, thus can
Further make the spice flow velocity of extrusion chamber everywhere balanced, improves and flow effect.
3, the spice current equalizer of the present invention for propellant powder extruder is provided with rubber packing, and rubber packing
On offer through-hole identical with the drug hole site on die body, quantity, size and shape, when rubber packing and die body are connected its
On each through hole center line respectively drug centerline hole corresponding on die body point-blank, due to elastic rubber liner on
Through-hole aperture extruding force increase when can become smaller, extruding force reduce when can be gradually recovered size, thus can improve because squeeze
Power changes the caused unbalanced problem of spice flow velocity, further increases stream effect.
4, the spice current equalizer of the present invention for propellant powder extruder, structure is simple, and raw material sources are wide, convenient for adding
Work production.
Detailed description of the invention
Fig. 1 is the appearance schematic diagram of the spice current equalizer of the present invention for propellant powder extruder；
Fig. 2 is the schematic diagram of internal structure of the spice current equalizer of the present invention for propellant powder extruder；
Fig. 3 is the structural schematic diagram of piston in the spice current equalizer of the present invention for propellant powder extruder；
Fig. 4 is the structural schematic diagram of outer cylinder in the spice current equalizer of the present invention for propellant powder extruder；
Fig. 5 is the schematic diagram of rubber packing in the spice current equalizer of the present invention for propellant powder extruder.
In figure, 110- venthole, 112- outer cylinder, 113- piston, 1131- rubber disc, 1132- piston only, 1133- piston
Bar；114- die body；1141- medicine outlet hole；115- rubber packing, 1151- through-hole；120- air storage chamber；130- spice extrusion chamber.
Specific embodiment
The spice current equalizer of the present invention for propellant powder extruder is made by way of example and in conjunction with the accompanying drawings
It further illustrates.Obviously, described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without making creative work it is obtained it is all its
Its embodiment belongs to the range that the present invention is protected.
Embodiment 1
In the present embodiment, the spice current equalizer for propellant powder extruder is as shown in Figure 1 and Figure 2, including outer cylinder 112, mould
Body 114, piston 113 and rubber packing 115.
The piston 113 as shown in Figure 2 and Figure 3, is made of piston only 1132 and piston rod 1133 and rubber disc 1131,
Piston rod 1133 is mounted on 1132 top surface of piston only, and when installation should make the center line of piston rod and the center line of piston only exist
On straight line, 1132 bottom of piston only is arranged fluted, top surface and is provided with the venthole 110 communicated with the groove, rubber
The size of lacquer disk(-sc) 1131 and the matching grooves, rubber disc are fixed on piston only bottom by vulcanization and cover described recessed
Slot, and 1131 bottom surface of rubber disc is concordant with 1132 bottom surface of piston only, and the vallecular cavity of groove is made to become air storage chamber 120.
The outer cylinder 112 is as shown in figure 4, its inner hole is from top to bottom followed successively by aperture D1 section, aperture D2 section, aperture D3
Section, aperture D1 is identical as the outer diameter nominal dimension of piston only 1132 and is dynamic cooperation, the aperture aperture D2=D1+2/3L, institute
State the wall thickness that L is outer cylinder aperture D1 section, the aperture aperture D3=D1, the thickness of the height h2 < piston only of aperture D2 section
H1, to guarantee that piston only always can be using the inner wall of aperture D1 section as guide surface during squeezing spice, even running.
The die body 114 is as shown in Figure 1 and Figure 2, shape and size and 112 bottom mating of outer cylinder, and opens on die body 114
Equipped with the identical medicine outlet hole 1141 of multiple shape sizes；The rubber packing 115 as shown in Fig. 2, Fig. 5, shape and size
Matched with the aperture D3 section of outer cylinder 112, and offered on rubber packing 115 on die body 114 drug hole site, quantity,
The identical through-hole 1151 of size and shape；Rubber packing 115 and die body 114 are connected by vulcanization, and rubber should be made when connected
Liner 115 on 1151 center line of each through-hole respectively to 1141 center line of corresponding medicine outlet hole on die body 114 point-blank.
The combination of above-mentioned each component or component: the piston only 1132 of the piston 113 is mounted on the hole of outer cylinder 112
In diameter D1 section, the rubber packing 115 is mounted in the aperture D3 section of outer cylinder 112, and the die body 114 is covered on outer cylinder
112 bottoms are simultaneously connected with outer tube wall by welding, and after combination, aperture D2 section and 115 top surface of rubber packing of outer cylinder 112 are formed
Spice extrusion chamber 130.
In the present embodiment, piston only 1132, piston rod 1133, outer cylinder 112 and die body 114 are made by medium carbon steel, rubber
Disk 1131 is made by model SMR10 compounded rubber, and rubber packing 115 is made by General Purpose Rubber.
Embodiment 2
In the present embodiment, the spice current equalizer for propellant powder extruder is as shown in Figure 1 and Figure 2, including outer cylinder 112, mould
Body 114, piston 113 and rubber packing 115.It is a difference in that with 1 structure of embodiment: the aperture aperture D2=D1+L.
Claims (5)
1. a kind of spice current equalizer for propellant powder extruder, it is characterised in that including outer cylinder (112), die body (114), live
Fill in (113) and rubber packing (115)；
The piston only (1132) and piston rod (1133) and rubber disc (1131) group that the piston (113) is made by metal material
At piston only (1132) bottom is arranged fluted, top surface and is provided with the venthole (110) communicated with the groove, rubber disc
(1131) size and the matching grooves, rubber disc are fixed on piston only bottom and cover the groove, make the slot of groove
Chamber becomes air storage chamber (120)；
The inner hole of the outer cylinder (112) is from top to bottom followed successively by aperture D1 section, aperture D2 section, aperture D3 section, aperture D1
It is identical as the outer diameter nominal dimension of piston only (1132) and be dynamic cooperation, the aperture aperture D2 > D1, the aperture aperture D3=D1, hole
The thickness h 1 of the height h2 < piston only (1132) of diameter D2 section；
The shape and size and outer cylinder (112) bottom mating of the die body (114), and multiple shapes are offered on die body (114)
The identical medicine outlet hole of size (1141), the shape and size of the rubber packing (115) and the aperture D3 section of outer cylinder (112)
Match, and offers through-hole identical with the drug hole site on die body (114), quantity, size and shape on rubber packing (115)
(1151)；Rubber packing (115) and die body (114) are connected, and should make in each through-hole (1151) on rubber packing (115) when connected
Heart line respectively to corresponding medicine outlet hole (1141) center line on die body (114) point-blank；
The piston only (1132) of the piston (113) is mounted in the aperture D1 section of outer cylinder, rubber packing (115) peace
In the aperture D3 section of outer cylinder, the die body (114) is covered on outer cylinder bottom and is connected with outer tube wall, outer cylinder (112)
Aperture D2 section and rubber packing (115) top surface form spice extrusion chamber (130).
2. being used for the spice current equalizer of propellant powder extruder according to claim 1, it is characterised in that the rubber disc
(1131) bottom surface is concordant with piston only (1132) bottom surface.
3. the spice current equalizer according to claim 1 or claim 2 for propellant powder extruder, it is characterised in that the aperture D2
=aperture D1+2/3L~aperture D1+L, the L are the wall thickness of outer cylinder aperture D1 section.
4. the spice current equalizer according to claim 1 or claim 2 for propellant powder extruder, it is characterised in that the rubber disc
(1131) it is made by compounded rubber.
5. being used for the spice current equalizer of propellant powder extruder according to claim 3, it is characterised in that the rubber disc
(1131) it is made by compounded rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811286619.8A CN109485529B (en) | 2018-10-31 | 2018-10-31 | A kind of spice current equalizer for propellant powder extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811286619.8A CN109485529B (en) | 2018-10-31 | 2018-10-31 | A kind of spice current equalizer for propellant powder extruder |
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| Publication Number | Publication Date |
|---|---|
| CN109485529A CN109485529A (en) | 2019-03-19 |
| CN109485529B true CN109485529B (en) | 2019-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811286619.8A Active CN109485529B (en) | 2018-10-31 | 2018-10-31 | A kind of spice current equalizer for propellant powder extruder |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114031471B (en) * | 2021-10-28 | 2022-08-19 | 西安近代化学研究所 | Propellant powder loads pre-compaction device |
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| EP0519798A1 (en) * | 1991-06-21 | 1992-12-23 | GIAT Industries | Process for the making of high power explosive charge and device for implementing the process |
| CN103673788A (en) * | 2013-12-05 | 2014-03-26 | 西安近代化学研究所 | Explosive loading device for explosive press fitting |
| CN104741408A (en) * | 2015-04-16 | 2015-07-01 | 广州科技职业技术学院 | Extrusion device and extruding machine with same |
| CN204523820U (en) * | 2014-08-28 | 2015-08-05 | 无锡市威特机械有限公司 | The rotating fixed extrusion pillow of the extrusion machine of a kind of card |
| CN207596750U (en) * | 2017-11-30 | 2018-07-10 | 抚州国泰复合材料有限公司 | A kind of Compound oil phase for emulsion explosive reaction kettle heating unit |
| CN108285402A (en) * | 2018-01-31 | 2018-07-17 | 山西北方兴安化学工业有限公司 | A kind of spiral pressure stretch cladding propellant mold |
| CN207699476U (en) * | 2017-11-14 | 2018-08-07 | 蒋志诚 | A kind of explosion-proof comminutor of pyrotechnic composition |
| CN108454058A (en) * | 2018-02-06 | 2018-08-28 | 濉溪县伊索工贸有限公司 | A kind of ornaments raw material extruder |
| CN207779244U (en) * | 2018-01-31 | 2018-08-28 | 湖北宣鹤高速公路有限公司 | One kind accurately controlling charge constitution device |
-
2018
- 2018-10-31 CN CN201811286619.8A patent/CN109485529B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0519798A1 (en) * | 1991-06-21 | 1992-12-23 | GIAT Industries | Process for the making of high power explosive charge and device for implementing the process |
| CN103673788A (en) * | 2013-12-05 | 2014-03-26 | 西安近代化学研究所 | Explosive loading device for explosive press fitting |
| CN204523820U (en) * | 2014-08-28 | 2015-08-05 | 无锡市威特机械有限公司 | The rotating fixed extrusion pillow of the extrusion machine of a kind of card |
| CN104741408A (en) * | 2015-04-16 | 2015-07-01 | 广州科技职业技术学院 | Extrusion device and extruding machine with same |
| CN207699476U (en) * | 2017-11-14 | 2018-08-07 | 蒋志诚 | A kind of explosion-proof comminutor of pyrotechnic composition |
| CN207596750U (en) * | 2017-11-30 | 2018-07-10 | 抚州国泰复合材料有限公司 | A kind of Compound oil phase for emulsion explosive reaction kettle heating unit |
| CN108285402A (en) * | 2018-01-31 | 2018-07-17 | 山西北方兴安化学工业有限公司 | A kind of spiral pressure stretch cladding propellant mold |
| CN207779244U (en) * | 2018-01-31 | 2018-08-28 | 湖北宣鹤高速公路有限公司 | One kind accurately controlling charge constitution device |
| CN108454058A (en) * | 2018-02-06 | 2018-08-28 | 濉溪县伊索工贸有限公司 | A kind of ornaments raw material extruder |
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| CN109485529A (en) | 2019-03-19 |
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