CN112092446A - Cup-shaped mould pressing die - Google Patents
Cup-shaped mould pressing die Download PDFInfo
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- CN112092446A CN112092446A CN202010904326.2A CN202010904326A CN112092446A CN 112092446 A CN112092446 A CN 112092446A CN 202010904326 A CN202010904326 A CN 202010904326A CN 112092446 A CN112092446 A CN 112092446A
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- cup
- cavity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
- B30B15/022—Moulds for compacting material in powder, granular of pasta form
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- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a cup-shaped mould pressing die, which relates to the technical field of mould pressing and comprises a mechanism cavity, a lower cavity and an upper cavity which are sequentially butted from bottom to top, wherein a core capable of being adjusted in a lifting way is arranged in the mechanism cavity; the top of the mold core is positioned in the lower cavity and forms a cup-shaped cavity with adjustable cup depth together with the lower cavity and the upper cavity, the cup-shaped cavity is filled with blanks, and a mold pressing block is arranged above the blanks and used for compressing the blanks. According to the cup-shaped die pressing die, the core, the lower cavity and the upper cavity which can be adjusted in a lifting mode form the cup-shaped cavity with the adjustable cup depth, powder can be molded into the hollow cup-shaped structure through the cup-shaped cavity in one step, the structural design is reasonable, the operation is simple and convenient, compared with a traditional solid cylinder die, the cost of raw materials for die pressing can be greatly reduced, the die pressing is basically formed in one step, extra coring operation steps are not needed, the processing cost is saved, the processing efficiency is improved, and the practicability is high.
Description
Technical Field
The invention relates to the technical field of compression molding, in particular to a cup-shaped compression molding die.
Background
At present, when powder is used for molding a blank with a certain shape, cylindrical or other solid shapes are mainly used. And some special part structures are designed to be hollow structures such as 'cup' structures, when cylindrical blanks are used, materials in the middle position part need to be additionally processed, waste of raw materials is caused, the process is complex, processing time is wasted, and working efficiency is low.
Therefore, how to provide a mold structure for molding a "cup-shaped" blank is an urgent problem to be solved by the present invention.
Disclosure of Invention
The invention aims to provide a cup-shaped die pressing die with a reasonable structural design, which greatly reduces the cost of the raw materials for die pressing compared with the traditional solid cylinder die, and can save the processing cost and improve the processing efficiency.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a cup-shaped mould pressing die which mainly comprises a mechanism cavity, a lower cavity and an upper cavity which are sequentially butted from bottom to top, wherein a core capable of being adjusted in a lifting way is arranged in the mechanism cavity; the top of the mold core is positioned in the lower cavity, and forms a cup-shaped cavity with adjustable cup depth together with the lower cavity and the upper cavity, the cup-shaped cavity is filled with blanks, and a mold pressing block is arranged above the blanks.
Optionally, the mold core comprises an inverted core sleeve, a guide sleeve and a telescopic mechanism, the outer wall of the inverted core sleeve is slidably connected with the side wall of the mechanism cavity through the guide sleeve, and the telescopic end of the telescopic mechanism is connected with the inner top wall of the inverted core sleeve; when the top surface pressure of the inverted core sleeve is greater than the supporting force of the telescopic mechanism, the telescopic mechanism can drive the inverted core sleeve to move downwards.
Optionally, the telescopic mechanism is a gas spring, and the bottom end of the gas spring is fixed to the bottom of the mechanism cavity.
Optionally, a limiting plate for limiting the downward movement distance of the inverted core sleeve is arranged in the mechanism cavity.
Optionally, the periphery of the limiting plate is provided with a core locking mechanism for locking the inverted core sleeve.
Optionally, the core locking mechanism includes a cushion block and a convex block, the cushion block is fixed above the limiting plate, the convex block is slidably mounted above the cushion block, and the inner end of the convex block extends into the cavity relative to the cushion block;
the outer edge of the bottom of the inverted core sleeve protrudes outwards to form a step, and the bump is connected to the side wall of the mechanism cavity through a pressure spring; and pulling the lug outwards to enable the bottom of the inverted core sleeve to reach the limiting plate, loosening the lug, resetting and clamping the lug above the step, and locking the core.
Optionally, the inner end surface of the projection is provided with an inclined surface.
Optionally, the blank is powder.
Optionally, the die pressing block is a weight.
Compared with the prior art, the invention has the following technical effects:
in the cup-shaped die pressing die provided by the invention, the core, the lower cavity and the upper cavity which can be adjusted in a lifting way form a cup-shaped cavity with adjustable cup depth, and powder can be molded into a hollow cup-shaped structure at one time through the cup-shaped cavity. This mould structural design is reasonable, and is easy and simple to handle, compares traditional solid cylinder mould can significantly reduce the moulded raw and other materials cost, and one shot basic molding need not extra operation step of coring, has saved the processing cost, improves machining efficiency, and the practicality is strong.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of a cup-shaped molding die of the present invention;
wherein the reference numerals are: 1. a mechanism cavity; 2. a lower cavity; 3. an upper cavity; 4. a core; 41. inverting the core sleeve; 411. a step; 42. a guide sleeve; 43. a telescoping mechanism; 5. molding the block; 6. a limiting plate; 7. a core locking mechanism; 71. cushion blocks; 72. a bump; 8. and (3) a blank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a cup-shaped die pressing die with reasonable structural design, which greatly reduces the cost of raw materials for die pressing compared with the traditional solid cylinder die, can save the processing cost and improve the processing efficiency, and is suitable for powder forming.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The first embodiment is as follows:
as shown in fig. 1, the present embodiment provides a cup-shaped mold pressing die suitable for powder molding, which mainly includes a mechanism cavity 1, a lower cavity 2 and an upper cavity 3, which are butt-jointed from bottom to top, and a core 4 capable of being adjusted in a lifting manner is arranged in the mechanism cavity 1; the top of the mold core 4 is positioned in the lower cavity 2, and forms a cup-shaped cavity with adjustable cup depth together with the lower cavity 2 and the upper cavity 3, a blank 8 is filled in the cup-shaped cavity, and a mold pressing block 5 is arranged above the blank.
In the present embodiment, as shown in fig. 1, the core 4 includes an inverted core housing 41, a guide housing 42, and a telescopic mechanism 43. The inverted core sleeve 41 is an inverted hollow cavity structure, and the outer wall of the inverted core sleeve is connected with the side wall of the mechanism cavity 1 in a sliding mode through a guide sleeve 42. The telescopic end of the telescopic mechanism 43 is connected with the inner top wall of the inverted core sleeve 41; when the top surface pressure of the inverted core sleeve 41 is greater than the supporting force of the telescopic mechanism 43, the telescopic mechanism 43 can drive the inverted core sleeve 41 to move downwards, so that the effect of adjusting the cup depth is achieved. In order to prevent the powdery blank from leaking into the mechanism cavity 1 from the lower cavity 2 during the movement of the inverted core sleeve 41, the inverted core sleeve 41 and the guide sleeve 42 are also provided with a dynamic sealing structure. The dynamic sealing structure adopts the prior art, and is not described in detail herein.
In this embodiment, the guide sleeve 42 is installed in the existing manner to perform a sliding guiding function, and is preferably made of PP plastic, so as to effectively prevent the hard friction between the core 4 and the mechanism cavity 1 (both made of stainless steel) during relative sliding and generate metal particles.
In this embodiment, as shown in fig. 1, the telescoping mechanism 43 is preferably a gas spring, the bottom end of which is fixed to the bottom of the mechanism chamber 1 and the top end of which is connected to the inner top wall of the inverted core housing 41.
In this embodiment, as shown in fig. 1, a position limiting plate 6 for limiting the downward movement distance of the inverted core housing 41 is provided in the mechanism chamber 1. The outer periphery of the stopper plate 6 is provided with a core lock mechanism 7 for locking the inverted core housing 41.
In this embodiment, as shown in fig. 1, two sets of core lock mechanisms 7 are symmetrically provided. The core locking mechanism 7 comprises a cushion block 71 and a projection 72, wherein the cushion block 71 is fixed above the limiting plate 6, the projection 72 is slidably connected above the cushion block 71 and can slide relative to the cushion block 71, and the inner end of the projection 72 extends towards the cavity relative to the cushion block 71. Correspondingly, the bottom outer edge of the inverted core sleeve 41 protrudes outwards to form a step 411, and the end position of the bump 72 is connected to the side wall of the mechanism cavity 1 through a pressure spring (not shown in the figure); the convex block 72 is pulled outwards in the radial direction, the pressure spring is compressed, the inner end of the convex block 72 is flush with the inner end face of the cushion block 71 at the moment, the inverted core sleeve 41 can conveniently penetrate through and reach the limiting plate 6, then the convex block 72 is loosened, the pressure spring resets, the convex block 72 resets under the action of the pressure spring and is clamped above the step 411, and the locking of the mold core is achieved. Wherein, limiting plate 6 is preferred to be set up to adjustable structure, is convenient for adjust the height that sets up of limiting plate according to the demand. In addition, in the present embodiment, the cushion block 71 and the protrusion 72 are disposed through the sidewall of the mechanism cavity 1, and the outer end is located outside the mechanism cavity 1, so that a person can conveniently manipulate the core locking mechanism 7 from the outside of the mold.
In this embodiment, as shown in fig. 1, the inner end surface of the projection 72 is preferably provided as a slope.
In this embodiment, the embossing blocks 5 are preferably irones, as shown in fig. 1, and the embossing blocks 5 are connected to a molding press and compress the blank under the control of the molding press.
In the embodiment, as shown in fig. 1, the lower cavity 2 is preferably inserted into the mechanism cavity 1 through a concave-convex groove structure; the upper cavity 3 is preferably inserted into the lower cavity 2 through a concave-convex groove structure. Above-mentioned structure, the dismouting mould of being convenient for improves work efficiency.
The following is a description of the specific working principle of the embodiment:
the lower cavity 2, the upper cavity 3 and the core 4 form a cup-shaped cavity structure. The cavity structure is filled with powder, and a pressing iron is used for cushioning the powder. A certain small gap is reserved on the periphery of the weight and the inner side of the cavity and used for discharging air in the powder in the die pressing process. Under the pressure of the molding press, the weight moves downwards in the upper and lower cavities, and the powder is gradually compressed. Under the condition that the upper pressure of the core 4 is greater than that of the gas spring, the core moves downwards, the blank is just powder, the volume is fluffy, and when the core moves downwards, the volume of the powder is gradually compressed. The movement of the bottom of the core to the stopper plate 6 is restricted and stopped, and the core is locked by the core locking mechanism. The molding press continues to increase the pressure to continue to compress the powder into a "cup" shaped blank. After the blank is molded by compression, the upper cavity 3 and the lower cavity 2 are respectively demoulded, and the molded blank can be taken out from the mold.
Therefore, the die structure of the embodiment is reasonable in design and simple and convenient to operate, the cost of the raw materials for die pressing can be greatly reduced compared with that of a traditional solid cylindrical die, the die is formed basically at one time, an extra coring operation step is not needed, the processing cost is saved, the processing efficiency is improved, and the practicability is high.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (9)
1. A cup-shaped mould pressing die is characterized in that: the device comprises a mechanism cavity, a lower cavity and an upper cavity which are sequentially butted from bottom to top, wherein a mold core capable of being adjusted in a lifting manner is arranged in the mechanism cavity; the top of the mold core is positioned in the lower cavity, and forms a cup-shaped cavity with adjustable cup depth together with the lower cavity and the upper cavity, the cup-shaped cavity is filled with blanks, and a mold pressing block is arranged above the blanks.
2. The cup-shaped molding die of claim 1, wherein: the mold core comprises an inverted core sleeve, a guide sleeve and a telescopic mechanism, the outer wall of the inverted core sleeve is connected with the mechanism cavity in a sliding mode through the guide sleeve, and the telescopic end of the telescopic mechanism is connected with the inner top wall of the inverted core sleeve; when the top surface pressure of the inverted core sleeve is greater than the supporting force of the telescopic mechanism, the telescopic mechanism can drive the inverted core sleeve to move downwards.
3. The cup-shaped molding die of claim 2, wherein: the telescopic mechanism is an air spring, and the bottom end of the air spring is fixed at the bottom of the mechanism cavity.
4. The cup-shaped molding die of claim 2, wherein: and a limiting plate for limiting the downward moving distance of the inverted core sleeve is arranged in the mechanism cavity.
5. The cup-shaped molding die of claim 4, wherein: and a core locking mechanism used for locking the inverted core sleeve is arranged on the periphery of the limiting plate.
6. The cup-shaped molding die of claim 5, wherein: the core locking mechanism comprises a cushion block and a convex block, the cushion block is fixed above the limiting plate, the convex block is slidably mounted above the cushion block, and the inner end of the convex block extends inwards relative to the cushion block;
the bottom of the inverted core sleeve protrudes outwards to form a step, the protruding block is connected to the side wall of the mechanism cavity through a pressure spring and is pulled outwards to enable the bottom of the inverted core sleeve to reach the limiting plate, the protruding block is loosened, and the protruding block resets and is clamped above the step to achieve locking of the core.
7. The cup-shaped molding die of claim 6, wherein: the inner end face of the lug is an inclined plane.
8. The cup-shaped molding die of claim 1, wherein: the blank is powder.
9. The cup-shaped molding die of claim 1, wherein: the die pressing block is a weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010904326.2A CN112092446A (en) | 2020-09-01 | 2020-09-01 | Cup-shaped mould pressing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010904326.2A CN112092446A (en) | 2020-09-01 | 2020-09-01 | Cup-shaped mould pressing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112092446A true CN112092446A (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010904326.2A Pending CN112092446A (en) | 2020-09-01 | 2020-09-01 | Cup-shaped mould pressing die |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB467636A (en) * | 1935-12-16 | 1937-06-16 | Victor Dumert | An improved method of and means for moulding plastic materials which do not flow easily |
| GB1373191A (en) * | 1972-01-25 | 1974-11-06 | Newbold Gen Refractories | Forming anchorage cavities in moulded refractory and like materials |
| JPH03264605A (en) * | 1990-03-13 | 1991-11-25 | Munekata Kk | Method for releasing metal powder green compact from mold |
| DE4202569A1 (en) * | 1992-01-30 | 1993-08-05 | Porotherm Daemmstoffe Gmbh | Press forming of heat insulating dish from fine powder material - which is compacted between punch and sheet-metal shell shaped to produce dish with sloping circumferential wall and of uniform density. |
| US20070104821A1 (en) * | 2005-11-04 | 2007-05-10 | Imal S.R.L. | Machine and method for molding articles made of loose material, for manufacturing loading pallet stringers |
| CN105437605A (en) * | 2015-12-25 | 2016-03-30 | 郑州磨料磨具磨削研究所有限公司 | Automatic die unloading die for one-way press |
| CN208662172U (en) * | 2018-07-12 | 2019-03-29 | 高满珍 | A kind of auto parts and components processing mold |
-
2020
- 2020-09-01 CN CN202010904326.2A patent/CN112092446A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB467636A (en) * | 1935-12-16 | 1937-06-16 | Victor Dumert | An improved method of and means for moulding plastic materials which do not flow easily |
| GB1373191A (en) * | 1972-01-25 | 1974-11-06 | Newbold Gen Refractories | Forming anchorage cavities in moulded refractory and like materials |
| JPH03264605A (en) * | 1990-03-13 | 1991-11-25 | Munekata Kk | Method for releasing metal powder green compact from mold |
| DE4202569A1 (en) * | 1992-01-30 | 1993-08-05 | Porotherm Daemmstoffe Gmbh | Press forming of heat insulating dish from fine powder material - which is compacted between punch and sheet-metal shell shaped to produce dish with sloping circumferential wall and of uniform density. |
| US20070104821A1 (en) * | 2005-11-04 | 2007-05-10 | Imal S.R.L. | Machine and method for molding articles made of loose material, for manufacturing loading pallet stringers |
| CN105437605A (en) * | 2015-12-25 | 2016-03-30 | 郑州磨料磨具磨削研究所有限公司 | Automatic die unloading die for one-way press |
| CN208662172U (en) * | 2018-07-12 | 2019-03-29 | 高满珍 | A kind of auto parts and components processing mold |
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