CN209035454U - One kind being used for the molding sintered-carbide die of irregularly-shaped inner hole green compact - Google Patents
One kind being used for the molding sintered-carbide die of irregularly-shaped inner hole green compact Download PDFInfo
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- CN209035454U CN209035454U CN201821493372.2U CN201821493372U CN209035454U CN 209035454 U CN209035454 U CN 209035454U CN 201821493372 U CN201821493372 U CN 201821493372U CN 209035454 U CN209035454 U CN 209035454U
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- strobilus masculinus
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Abstract
One kind being used for the molding sintered-carbide die of irregularly-shaped inner hole green compact, including former, core bar and punching die；Core bar and punching die are set in former inner cavity, and punching die is sheathed on core bar upper section outer wall, and the outer wall of punching die and the inner wall of former are slidably matched；Core bar is removably assembled one on the other by the first core bar component and the second core bar component；First core bar component has a cylindrical body, and the first inner cone that the outer wall of lower section corresponds to compact inner holes is formed with the first male cone (strobilus masculinus)；The second inner cone that the upper section outer wall of second core bar component corresponds to compact inner holes is formed with the second male cone (strobilus masculinus).The utility model uses combined type core bar, can meet a compression moulding of green compact product.After the completion of compacting, green compact can be smoothly taken out by separating two parts of core bar.Both reduce production process, in turn ensure the presentation quality of green compact product.
Description
Technical field
The utility model relates to hart metal product compression moulding fields, and in particular to one kind is molding for special-shaped green compact
Sintered-carbide die.
Background technique
In CEMENTED CARBIDE PRODUCTION, 2 both ends of inner hole of 1 product of part green compact (schematic diagram of product structure as shown in Figure 1)
All there is taper.
Traditional mold is made of former, core bar, punching die, lower die formed punch, in order to suppress the special-shaped product in Fig. 1,
It needing that back taper is all arranged at core bar both ends, but compacting finishes, after punching die is taken out, green compact can not be separated with core bar, therefore, on
Stating traditional method can not form.In addition, the wall thickness of lower die formed punch is relatively thin, it is easy to damage.
Domestic many producers are when producing this based article, the method that generally uses are as follows: by the first inner cone 3 or the on product
A design in two inner cones 4 is on core bar, direct pressing molding, after the completion of another end cone face is using compacting, then soft processing
Method molding.Such method can form, but the process for increasing soft processing, in addition, the green compact surface of soft processing is there are tool marks,
Finish is not so good as the green compact of direct pressing molding, has certain influence to product appearance quality.
Therefore, above-mentioned the shortcomings of the prior art how is solved, is become as the class to be researched and solved of the utility model
Topic.
Summary of the invention
The purpose of the utility model is to provide one kind to be used for the molding sintered-carbide die of irregularly-shaped inner hole green compact.
In order to achieve the above objectives, the technical solution adopted in the utility model is:
One kind is used for the molding sintered-carbide die of irregularly-shaped inner hole green compact, the inner hole of the green compact have the first inner cone and
It is connected in the second inner cone of the first inner cone lower part；
The mold includes former, core bar and punching die；The former and the punching die are in both ends open
Tubular, the core bar and the punching die are set in the inner cavity of the former, and the punching die is sheathed on the core bar
On the outer wall of upper section, the two is slidably matched, and inner wall of the outer wall of punching die then with the former is slidably matched；
The core bar is removably assembled one on the other by the first core bar component and the second core bar component；
The first core bar component has a cylindrical body, and the outer wall of lower section corresponds in described the first of compact inner holes
Cone is formed with one first male cone (strobilus masculinus), and first male cone (strobilus masculinus) is from top to bottom towards tilted；
The second core bar component is assemblied in the bottom of the first core bar component, and the outer wall of upper section corresponds to compact inner holes
Second inner cone be formed with one second male cone (strobilus masculinus), second male cone (strobilus masculinus) is from top to bottom towards outer incline.
Related content in above-mentioned technical proposal is explained as follows:
1. in above scheme, the lower section of the second core bar component is straight section, the diameter of the straight section is greater than outside described second
The maximum gauge of the conical surface, and the outer wall of the straight section fits in the inner wall lower section of the former, to have both the effect of lower die formed punch；
In the assembled condition, the former inner wall, the first male cone (strobilus masculinus) of the first core bar component, the second core bar group
It defines to form one jointly in the upper surface of second male cone (strobilus masculinus) of part, the bottom surface of the punching die and the second core bar component lower section
The shape of die cavity, the die cavity corresponds to the shape of green compact, for green compact to be made.
2. in above scheme, the bottom end of the first core bar component is downwardly extending a shank, the shank it is straight
Diameter is less than the minimum diameter of first male cone (strobilus masculinus)；
A pilot hole is offered in the second core bar component, the height of the pilot hole is less than the height of the shank,
The diameter of pilot hole and the diameter of shank are corresponding, will not shake after guaranteeing grafting；The shank is inserted into the assembly
Kong Zhong, the lower section of pilot hole is stretched out in the bottom end of shank, and cooperates with a nut thread, constitutes the first core bar component and institute
The second core bar component is stated to be fixedly connected by the nut.
Compared to other dismountable assembling forms, which, which only needs to unload lower nut, can be realized to the first core
The separation of bar assembly and the second core bar component, smoothly to take out green compact.Operating quantity when dismantling nut is less, does not also have to green compact
Adverse effect advantageously ensures that the shape of green compact is not destroyed.
3. in above scheme, being also provided with an assembly cavity in the second core bar component, which is located at the assembly
The lower section in hole and the two perforation setting；The total height of the assembly cavity and the pilot hole is greater than the height of the shank, when
When the first core bar component is fixedly connected with the second core bar component, the nut is located in the assembly cavity.
The working principle and advantage of the utility model are as follows:
The utility model one kind is used for the molding sintered-carbide die of irregularly-shaped inner hole green compact, including former, core bar and upper mold
Formed punch；Core bar and punching die are set in former inner cavity, and punching die is sheathed on core bar upper section outer wall, the outer wall of punching die
It is slidably matched with the inner wall of former；Core bar removably assembled one on the other by the first core bar component and the second core bar component and
At；First core bar component has a cylindrical body, and the first inner cone that the outer wall of lower section corresponds to compact inner holes is formed with first
Male cone (strobilus masculinus)；The second inner cone that the upper section outer wall of second core bar component corresponds to compact inner holes is formed with the second male cone (strobilus masculinus).
Compared to existing technologies, the utility model uses combined type core bar, can meet once being pressed into for green compact product
Type.After the completion of compacting, green compact can be smoothly taken out by separating two parts of core bar.Not only reduce production process, but also guarantee
The presentation quality of green compact product.
Detailed description of the invention
Attached drawing 1 is the schematic diagram of the section structure of irregularly-shaped inner hole green compact product；
Attached drawing 2 is the schematic diagram of the section structure of the utility model embodiment core bar；
Attached drawing 3 is the structural schematic diagram of the first core bar of the utility model embodiment component；
Attached drawing 4 is the schematic diagram of the section structure of the second core bar of the utility model embodiment component；
Attached drawing 5 is the schematic diagram of the section structure when the utility model embodiment is suppressed.
In the figures above: 1. green compacts；2. inner hole；3. the first inner cone；4. the second inner cone；5. former；6. core bar；7. upper punch
Head；8. the first core bar component；9. the second core bar component；10. the first male cone (strobilus masculinus)；11. the second male cone (strobilus masculinus)；12. straight section；13. grafting
Bar；14. pilot hole；15. nut；16. assembly cavity.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments:
Embodiment: referring to shown in attached drawing 1 ~ 5, one kind being used for the molding sintered-carbide die of irregularly-shaped inner hole green compact, the pressure
The inner hole 2 of base 1 has the first inner cone 3 and is connected with the second inner cone 4 in 3 lower part of the first inner cone.
The mold includes former 5, core bar 6 and punching die 7；The former 5 and the punching die 7 are opened in both ends
In the inner cavity of the former 5, the punching die 7 is sheathed on for the tubular of mouth, the core bar 6 and the punching die 7
On the outer wall of 6 upper section of core bar, the two is slidably matched, and the outer wall of punching die 7 is then matched with the sliding of the inner wall of the former 5
It closes.
The core bar 6 is removably assembled one on the other by the first core bar component 8 and the second core bar component 9；
The first core bar component 8 has a cylindrical body, and the outer wall of lower section corresponds to described the of 1 inner hole 2 of green compact
One inner cone 3 is formed with one first male cone (strobilus masculinus) 10, and first male cone (strobilus masculinus) 10 is from top to bottom towards tilted；
The second core bar component 9 is assemblied in the bottom of the first core bar component 8, and the outer wall of upper section corresponds to green compact 1
Second inner cone 4 of inner hole 2 is formed with one second male cone (strobilus masculinus) 11, and second male cone (strobilus masculinus) 11 is from top to bottom towards outer incline.
The lower section of the second core bar component 9 is straight section 12, and the diameter of the straight section 12 is greater than second male cone (strobilus masculinus) 11
Maximum gauge, and the outer wall of the straight section 12 fits in the inner wall lower section of the former 5, to have both the effect of lower die formed punch；
In the assembled condition, 5 inner wall of former, the first male cone (strobilus masculinus) 10 of the first core bar component 8, second core
The upper surface of second male cone (strobilus masculinus) 11 of bar assembly 9, the bottom surface of the punching die 7 and 9 lower section of the second core bar component is common
It defines to form a die cavity, the shape of the die cavity corresponds to the shape of green compact 1, for green compact 1 to be made.
Wherein, the bottom end of the first core bar component 8 is downwardly extending a shank 13, and the diameter of the shank 13 is small
In the minimum diameter of first male cone (strobilus masculinus) 10；
A pilot hole 14 is offered in the second core bar component 9, the height of the pilot hole 14 is less than the shank 13
Height, the diameter of pilot hole 14 is corresponding with the diameter of shank 13, will not shake after guaranteeing grafting；The shank 13
It is inserted into the pilot hole 14, the lower section of pilot hole 14 is stretched out in the bottom end of shank 13, and is threadedly engaged with a nut 15, constitutes
The first core bar component 8 is fixedly connected with the second core bar component 9 by the nut 15.
Compared to other dismountable assembling forms, which, which only needs to unload lower nut 15, can be realized to first
The separation of core bar component 8 and the second core bar component 9, smoothly to take out green compact 1.Operating quantity when dismantling nut 15 is less, to pressure
Base 1 advantageously ensures that the shape of green compact 1 is not destroyed also without adverse effect.
Wherein, it is also provided with an assembly cavity 16 in the second core bar component 9, which is located at the pilot hole 14
Lower section and the two perforation setting；The assembly cavity 16 is greater than the height of the shank 13 with the total height of the pilot hole 14
Degree, when the first core bar component 8 is fixedly connected with the second core bar component 9, the nut 15 is located at the assembly cavity 16
In.
Compared to existing technologies, the utility model uses combined type core bar 6, can meet the primary compacting of 1 product of green compact
Molding.After the completion of compacting, green compact 1 can be smoothly taken out by separating two parts of core bar 6.Not only reduce production process, but also
It ensure that the presentation quality of 1 product of green compact.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (4)
1. one kind is used for the molding sintered-carbide die of irregularly-shaped inner hole green compact, the inner hole of the green compact has the first inner cone and company
The second inner cone set on the first inner cone lower part；It is characterized by:
The mold includes former, core bar and punching die；The former and the punching die are in the tubular of both ends open,
The core bar and the punching die are set in the inner cavity of the former, and the punching die is sheathed on the core bar upper section
On outer wall, the two is slidably matched, and inner wall of the outer wall of punching die then with the former is slidably matched；
The core bar is removably assembled one on the other by the first core bar component and the second core bar component；
The first core bar component has a cylindrical body, and the outer wall of lower section corresponds to first inner conical of compact inner holes
The first male cone (strobilus masculinus) of Cheng Youyi, first male cone (strobilus masculinus) is from top to bottom towards tilted；
The second core bar component is assemblied in the bottom of the first core bar component, and the outer wall of upper section corresponds to the institute of compact inner holes
It states the second inner cone and is formed with one second male cone (strobilus masculinus), second male cone (strobilus masculinus) is from top to bottom towards outer incline.
2. mold according to claim 1, it is characterised in that: the lower section of the second core bar component is straight section, the straight section
Diameter be greater than the maximum gauge of second male cone (strobilus masculinus), and the outer wall of the straight section fits in the inner wall lower section of the former；
In the assembled condition, the former inner wall, the first male cone (strobilus masculinus) of the first core bar component, the second core bar component
It defines to form a mould jointly in the upper surface of second male cone (strobilus masculinus), the bottom surface of the punching die and the second core bar component lower section
Chamber.
3. mold according to claim 1, it is characterised in that: the bottom end of the first core bar component is downwardly extending one
Shank, the diameter of the shank are less than the minimum diameter of first male cone (strobilus masculinus)；
A pilot hole is offered in the second core bar component, the height of the pilot hole is less than the height of the shank, assembly
The diameter in hole and the diameter of shank are corresponding；The shank is inserted into the pilot hole, and assembly is stretched out in the bottom end of shank
The lower section in hole, and cooperate with a nut thread, it constitutes the first core bar component and the second core bar component passes through the spiral shell
Mother is fixedly connected.
4. mold according to claim 3, it is characterised in that: it is also provided with an assembly cavity in the second core bar component,
The assembly cavity is located at the lower section of the pilot hole and the two perforation setting；The total height of the assembly cavity and the pilot hole is greater than
The height of the shank, when the first core bar component is fixedly connected with the second core bar component, the nut is located at
In the assembly cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821493372.2U CN209035454U (en) | 2018-09-13 | 2018-09-13 | One kind being used for the molding sintered-carbide die of irregularly-shaped inner hole green compact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821493372.2U CN209035454U (en) | 2018-09-13 | 2018-09-13 | One kind being used for the molding sintered-carbide die of irregularly-shaped inner hole green compact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209035454U true CN209035454U (en) | 2019-06-28 |
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ID=67033045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821493372.2U Active CN209035454U (en) | 2018-09-13 | 2018-09-13 | One kind being used for the molding sintered-carbide die of irregularly-shaped inner hole green compact |
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| Country | Link |
|---|---|
| CN (1) | CN209035454U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976856A (en) * | 2019-12-27 | 2020-04-10 | 哈尔滨工程大学 | Metal powder forming device |
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2018
- 2018-09-13 CN CN201821493372.2U patent/CN209035454U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976856A (en) * | 2019-12-27 | 2020-04-10 | 哈尔滨工程大学 | Metal powder forming device |
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