CN209319980U - Extrusion die is used in a kind of production of honeycomb type denitrification catalyst - Google Patents
Extrusion die is used in a kind of production of honeycomb type denitrification catalyst Download PDFInfo
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- CN209319980U CN209319980U CN201820411872.0U CN201820411872U CN209319980U CN 209319980 U CN209319980 U CN 209319980U CN 201820411872 U CN201820411872 U CN 201820411872U CN 209319980 U CN209319980 U CN 209319980U
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- mold core
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- countersunk head
- locking
- clamping screw
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Abstract
The utility model discloses a kind of honeycomb type denitrification catalyst production extrusion die, including mold core and framed, and for being fixedly connected with mold core and framed clamping screw；Described framed equipped with several countersunk head through-holes, the step surface of each countersunk head through-hole is equipped with multiple locking stripeds, and multiple locking striped is circumferentially uniformly distributed along step surface, and single locking striped is arranged radially along step surface, and the cross sectional shape of each locking striped is arc-shaped；The mold core is equipped with several threaded holes, several threaded holes and several described countersunk head through-holes correspond, and is equipped with the clamping screw in each threaded hole and corresponding countersunk head through-hole, and the head bottom surface of clamping screw is tight against the locking striped.A kind of honeycomb type denitrification catalyst production extrusion die of the utility model, it is structurally reasonable, clamping screw loosening is effectively prevented, so that mold core and framed stable connection, avoiding, which influences extrusion die, is worked normally, to improve product qualification rate.
Description
Technical field
The utility model relates to a kind of honeycomb type denitrification catalyst production extrusion dies.
Background technique
Catalysts selective, which refers to, reacts with the unstable nitride in flue gas and generates nontoxic and pollution-free nitrogen and water
Catalysts selective.Wherein, most widely used is honeycomb type denitrification catalyst, and honeycomb type denitrification catalyst is mainly adopted
It is made with mold through squeezing out, extrusion is that mixing and filtered material are extruded into corresponding unit item under high pressure.It squeezes
Mold includes mold core and framed out, mold core and framed is generally bolted to connection；In process of production, due to extrusion die
Vibration, be easy to cause bolt looseness, cause mold core and it is framed connection built on the sand, influence product quality.
Utility model content
The purpose of this utility model is to provide a kind of honeycomb type denitrification catalyst production extrusion die, structure is closed
Reason effectively prevents clamping screw loosening, so that mold core and framed stable connection, avoiding, which influences extrusion die, is worked normally, from
And improve product qualification rate.
In order to achieve the object, the technical solution of the utility model is to design a kind of production of honeycomb type denitrification catalyst with squeezing
Mold out, including mold core and framed, and for being fixedly connected with mold core and framed clamping screw；It is described framed equipped with several
The step surface of a countersunk head through-hole, each countersunk head through-hole is equipped with multiple locking stripeds, and multiple locking striped is circumferentially equal along step surface
Cloth, and single locking striped is arranged radially along step surface, the cross sectional shape of each locking striped is arc-shaped；The mold core is equipped with
Several threaded holes, several threaded holes and several described countersunk head through-holes correspond, and each threaded hole is logical with corresponding countersunk head
The clamping screw is equipped in hole, and the head bottom surface of clamping screw is tight against the locking striped.By using above scheme,
After clamping screw is tightened, the head bottom surface of clamping screw is by tight against the locking striped on step surface, suffered by clamping screw head
Frictional force increase under the action of locking striped, thus effectively prevent clamping screw loosening so that mold core and framed connection
Firm, avoiding, which influences extrusion die, works normally, to improve product qualification rate.
Preferably, the mold core crosses mud hole and multiple cylindrical dies nail equipped with multiple, and the multiple mould nail is in array distribution, respectively
The cross sectional shape of mould nail is square, and each mould nail four corners are equipped with circular arc chamfering, and the gap between adjacent mould nail is formed
Extruding groove；The mud hole of crossing is connected with the extruding groove.By using above scheme, when the pug of honeycomb type denitrification catalyst
When the extruding force that the extruding groove between following closely by mould is followed closely by mould, since circular arc chamfering has an arc transition, pug is reduced
The extrusion stress being subject to, makes pug smoothly enter extruding groove, improves the production qualification rate of honeycomb type denitrification catalyst.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model.
Fig. 2 is the schematic top plan view of countersunk head through-hole in the utility model.
Fig. 3 is the schematic cross-section of locking striped in the utility model.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and cannot be used as a limitation the protection model of limitation the utility model
It encloses.
The technical solution of the utility model specific implementation is:
As shown in Figure 1, Figure 2 and Figure 3, a kind of honeycomb type denitrification catalyst production extrusion die, including mold core 1 and framed
2, and the clamping screw for being fixedly connected with mold core 1 and framed 2；Described framed 2 are equipped with several countersunk head through-holes 3, each heavy
The step surface 4 of head through-hole 3 is equipped with multiple locking stripeds 5, and multiple locking striped 5 is circumferential uniformly distributed along step surface 4, and single anti-
Loose striped 5 is arranged radially along step surface 4, and the cross sectional shape of each locking striped 5 is arc-shaped；The mold core 1 is equipped with several
Threaded hole 6, several threaded holes 6 and several described countersunk head through-holes 3 correspond, each threaded hole 6 and corresponding countersunk head through-hole 3
In be equipped with the clamping screw, and the head bottom surface of clamping screw is tight against the locking striped 5.By using above scheme,
After clamping screw is tightened, the head bottom surface of clamping screw will be tight against the locking striped 5 on step surface 4, clamping screw head institute
The frictional force received increases under the action of locking striped 5, so that clamping screw loosening is effectively prevented, so that mold core 1 and framed 2
Stable connection, avoiding, which influences extrusion die, works normally, to improve product qualification rate.
Also, it is above-mentioned state mold core 1 be equipped with it is multiple cross mud hole and multiple cylindrical dies nail, the multiple mould nail is in array distribution,
The cross sectional shape of each mould nail is square, and each mould nail four corners are equipped with circular arc chamfering, the gap shape between adjacent mould nail
At extruding groove；The mud hole of crossing is connected with the extruding groove.By using above scheme, when the mud of honeycomb type denitrification catalyst
When the extruding force that material is followed closely by the extruding groove between mould nail by mould, since circular arc chamfering has an arc transition, mud is reduced
Expect the extrusion stress being subject to, so that pug is smoothly entered extruding groove, improve the production qualification rate of honeycomb type denitrification catalyst.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change
It also should be regarded as the protection scope of the utility model into retouching.
Claims (2)
1. a kind of honeycomb type denitrification catalyst production extrusion die, which is characterized in that including mold core and framed, and for solid
Surely mold core and framed clamping screw are connected；It is described it is framed be equipped with several countersunk head through-holes, on the step surface of each countersunk head through-hole
Equipped with multiple locking stripeds, multiple locking striped is circumferentially uniformly distributed along step surface, and single locking striped is radially set along step surface
It sets, the cross sectional shape of each locking striped is arc-shaped；The mold core is equipped with several threaded holes, several threaded holes and institute
Several countersunk head through-holes one-to-one correspondence is stated, is equipped with the clamping screw, and locking screw in each threaded hole and corresponding countersunk head through-hole
The head bottom surface of bolt is tight against the locking striped.
2. honeycomb type denitrification catalyst production extrusion die according to claim 1, which is characterized in that the mold core is set
Have it is multiple cross mud hole and multiple cylindrical dies nail, the multiple mould nail is in array distribution, and the cross sectional shape of each mould nail is square, and
Each mould nail four corners are equipped with circular arc chamfering, and the gap between adjacent mould nail forms extruding groove；The mud hole of crossing is squeezed with described
Slot is connected out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820411872.0U CN209319980U (en) | 2018-03-26 | 2018-03-26 | Extrusion die is used in a kind of production of honeycomb type denitrification catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820411872.0U CN209319980U (en) | 2018-03-26 | 2018-03-26 | Extrusion die is used in a kind of production of honeycomb type denitrification catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209319980U true CN209319980U (en) | 2019-08-30 |
Family
ID=67705944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820411872.0U Active CN209319980U (en) | 2018-03-26 | 2018-03-26 | Extrusion die is used in a kind of production of honeycomb type denitrification catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209319980U (en) |
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2018
- 2018-03-26 CN CN201820411872.0U patent/CN209319980U/en active Active
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