CN203725677U - Coin impressing mold structure - Google Patents
Coin impressing mold structure Download PDFInfo
- Publication number
- CN203725677U CN203725677U CN201420088411.6U CN201420088411U CN203725677U CN 203725677 U CN203725677 U CN 203725677U CN 201420088411 U CN201420088411 U CN 201420088411U CN 203725677 U CN203725677 U CN 203725677U
- Authority
- CN
- China
- Prior art keywords
- mold
- section
- impressing
- coin
- mould circle
- 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.)
- Expired - Lifetime
Links
- 238000007493 shaping process Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 10
- 230000001050 lubricating effect Effects 0.000 abstract description 6
- 230000005740 tumor formation Effects 0.000 abstract 1
- 230000008569 process Effects 0.000 description 9
- 239000002184 metal Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 3
- 230000001613 neoplastic effect Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
Abstract
The utility model discloses a coin impressing mold structure which comprises a mold ring and an impressing mold. An inner hole of the mold ring is divided into a leading-in section A, a positioning section B and a forming section C, the positioning section B is cylindrical, a first flared opening is formed in the leading-in section A, a second flared opening is formed in the forming section C, the impressing mold comprises a movable mold and a fixed mold, the minimum gap is reserved between the movable mold and the fixed mold and is used as a forming zone, and the forming zone of the impressing mold is arranged in the forming section C of the mold ring. The coin impressing mold structure has the advantages that the structure of the mold ring is changed, the forming zone of the impressing mold is repositioned in the mold ring, accordingly, a lubricating environment can be improved, contact procedures can be shortened, and the probability of bond tumor formation can be greatly reduced.
Description
Technical field
The utility model relates to metal stamping technical field, for preventing from scratching due to the plastic deformation of base cake the technology of mould circle, especially a kind of structure of coin making ide.
Background technology
When the design of coin product adopts stainless steel, due to the variation of material and pattern, in trial production moulding process, often find that finished product and making ide occur that limit portion in various degree scratches phenomenon, have a strong impact on the service life of end product quality and the mould circle of product, become the bottleneck that direct restriction production efficiency improves.
Through observation, in moulding process, all rough matsurfaces of appearance in various degree of base cake edge part and mould circle inner surface, and coarse degree Rapid Accumulation.Trace it to its cause: 1. base cake unbalance stress, because stamping press in coining process is larger, the unit pressure that acts on base cake is strong, and the concavo-convex fluctuating of base cake picture on surface is not etc. in addition, cause that to act on the pressure on base cake surface inhomogeneous, do not cause radial deformation after base cake pressurized not etc.; 2. destruction of lubricating film, in coining process, produces the heat energy that the plastic deformation of relative friction and base cake produces between base cake and mould circle, cause environment temperature in making ide to raise, the lubricating film viscosity decline on base cake surface, lubricating oil breakdown; 3. form sticky lump, along with proceeding of coining process, the position of heaving on base cake edge directly contacts with mould circle internal diameter, under high pressure and shear action, base cake boss scratches mould circle and scrapes to cut into pieces and pile in mould circle, under high temperature action, make the fragment of piling up melt, be glued on mould circle, finally form sticky lump.
Once sticky lump is just difficult to come off after forming, and along with the prolongation of working time is more sticky larger, thereby cause stainless steel billet cake in the time of launch mode circle, to leave severe marking, the limit portion plucking phenomenon seen.
The formation of sticky lump generally will be experienced following process: the uncovering of the break → fresh parent metal of stainless steel billet cake lubricating film, oxide-film → with mould circle surface, metal adhesion occurs under pressure and temperature condition, especially the shear flow of metal, will recur the generation of adhesiving metal and come off.Therefore the key that forms sticky lump is because of excess Temperature, destruction of lubricating film between base cake edge and mould circle inner side, and direct contact for a long time occurred to cross.
Utility model content
The purpose of this utility model is the structure of a kind of coin making ide of providing for the deficiencies in the prior art, this structural change the structure of mould circle and making ide be positioned at the position of mould circle shaping area, lubricated enhancement of environment, contact process are shortened, significantly reduced the neoplastic probability of bonding.
The concrete technical scheme that realizes the utility model object is:
A kind of structure of coin making ide, feature is that this structure comprises mould circle and making ide, the endoporus of described mould circle is divided into introduction segment A, positioning section B and profiled section C vertically, wherein, positioning section B is tubular, between its internal diameter and the nominal diameter of coin blank cake, be provided with gap, the axial height of positioning section B is more than or equal to the thickness of coin blank cake; Introduction segment A is provided with the first horn mouth, and its tapering is 85～95 °; Profiled section C is provided with the second horn mouth, and the bus of its tapering is parabola, and profiled section C height is vertically more than or equal to 2.5 times of coin blank cake thickness; Described making ide is made up of dynamic model and quiet mould, and it is shaping area that minimum clearance is set between dynamic model and quiet mould, and the shaping area of making ide is located in the profiled section C of mould circle.
The utility model has changed the structure of mould circle and making ide and has been positioned at the position of mould circle shaping area, and lubricated enhancement of environment, contact process are shortened, and has significantly reduced the neoplastic probability of bonding.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the local enlarged diagram in A place of Fig. 1;
Fig. 3 is the structural representation of the utility model mould circle;
Fig. 4 is that the utility model uses state diagram.
Detailed description of the invention
Consult Fig. 1-3, the utility model comprises mould circle 1 and making ide 3, the endoporus of described mould circle 1 is divided into introduction segment A, positioning section B and profiled section C vertically, wherein, positioning section B is column 12, between its internal diameter and the nominal diameter of coin blank cake, be provided with gap, the axial height of positioning section B is more than or equal to the thickness of base cake; Introduction segment A is provided with the first horn mouth 11, and its tapering is between 85 °～95 °; Profiled section C is provided with the second horn mouth 13, and the bus of its tapering is parabola, and profiled section C height is vertically more than or equal to 2.5 times of base cake 2 thickness.
Described making ide 3 is made up of dynamic model 31 and quiet mould 32, and it is shaping area 33 that minimum clearance is set between dynamic model 31 and quiet mould 32, and coin blank cake is positioned at shaping area 33, and shaping area 33 is located in the profiled section C of mould circle 1.
The utility model is to use like this:
Consult Fig. 1-4, introduction segment A of the present utility model is provided with the first horn mouth 11, the tapering that selects the first horn mouth 11 is 90 °, when installation, determine the lower line position of dynamic model 31, adjust quiet mould 32, keep the minimum clearance arranging between quiet mould 32 and dynamic model 31, this gap is the shaping area 33 of coin blank cake 2, adjust mould circle 1, the end of quiet mould 32 is inserted by the first horn mouth 11 of introduction segment A, and the transverse plane that makes quiet mould 32 is by positioning section B and touch in the profiled section C of mould circle 1, confirms that shaping area 33 is positioned at the profiled section C of mould circle 1.
Feed mechanism imports base cake 2 in mould circle 1 from the second horn mouth 13 of profiled section C, makes base cake 2 fall into the interior also location of profiled section C of mould circle 1.
When base cake 2 is subject to producing radial deformation after the punching press of dynamic model 31, base cake 2 edges are heaving of cydariform, and it is parabolical the second horn mouth 13 that the maximum outside diameter of base cake 2 cydariforms has been positioned at profiled section C, coin 2 after moulding is ejected it by push rod from the second horn mouth 13, because the aperture of the interior positioning section B of mould circle 1 is greater than the nominal diameter of base cake 2, be matched in clearance, in addition the second horn mouth 13 taperings are parabola, so, with ejecting of coin blank cake 2, it is large that gap between the profiled section C of coin blank cake 2 and mould circle 1 constantly becomes, thereby shorten the contact process of the profiled section C endoporus of coin blank cake 2 edges and mould circle 1, the cydariform external diameter of coin blank cake 2 maximums and the Interference contact of mould circle 1 are avoided, protect the lubricating film of coin blank cake 2 with profiled section C inside diameter surface, reduce the neoplastic probability of bonding.
For ensureing that mould circle 1 has enough intensity, be to be more than or equal to 2.5 times of base cake 2 thickness by profiled section C height design vertically.
Claims (1)
1. the structure of a coin making ide, it is characterized in that this structure comprises mould circle (1) and making ide (3), the endoporus of described mould circle (1) is divided into introduction segment A, positioning section B and profiled section C vertically, wherein, positioning section B is tubular (12), between its internal diameter and the nominal diameter of coin blank cake, be provided with gap, the axial height of positioning section B is more than or equal to the thickness of coin blank cake; Introduction segment A is provided with the first horn mouth (11), and its tapering is 85～95 °; Profiled section C is provided with the second horn mouth (13), and the bus of its tapering is parabola, and profiled section C height is vertically more than or equal to 2.5 times of coin blank cake thickness; Described making ide (3) is made up of dynamic model (31) and quiet mould (32), and it is shaping area (33) that minimum clearance is set between dynamic model (31) and quiet mould (32), and the shaping area (33) of making ide (3) is located in the profiled section C of mould circle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420088411.6U CN203725677U (en) | 2014-02-28 | 2014-02-28 | Coin impressing mold structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420088411.6U CN203725677U (en) | 2014-02-28 | 2014-02-28 | Coin impressing mold structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203725677U true CN203725677U (en) | 2014-07-23 |
Family
ID=51195781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420088411.6U Expired - Lifetime CN203725677U (en) | 2014-02-28 | 2014-02-28 | Coin impressing mold structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203725677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108638722A (en) * | 2018-07-24 | 2018-10-12 | 山东招金金银精炼有限公司 | A kind of metal memorial tablet surface imprint system and method |
-
2014
- 2014-02-28 CN CN201420088411.6U patent/CN203725677U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108638722A (en) * | 2018-07-24 | 2018-10-12 | 山东招金金银精炼有限公司 | A kind of metal memorial tablet surface imprint system and method |
| CN108638722B (en) * | 2018-07-24 | 2024-02-09 | 山东招金金银精炼有限公司 | Metal souvenir medal surface imprinting system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |