CN102847941A - Die for detachable compression-molding hard alloy plate and manufacturing method of die - Google Patents
Die for detachable compression-molding hard alloy plate and manufacturing method of die Download PDFInfo
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- CN102847941A CN102847941A CN2012103787077A CN201210378707A CN102847941A CN 102847941 A CN102847941 A CN 102847941A CN 2012103787077 A CN2012103787077 A CN 2012103787077A CN 201210378707 A CN201210378707 A CN 201210378707A CN 102847941 A CN102847941 A CN 102847941A
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- side plate
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- key head
- hard alloy
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Abstract
The invention relates to a die for a detachable compression-molding hard alloy plate and a manufacturing method of the die. The die comprises an upper punch, a lower punch, two side plates and two baffles, wherein the two ends of each baffle are provided with key heads, and correspondingly, the two ends of each side plate are provided with key grooves matched with the key heads; the baffles and the side plates are sequentially connected with each other end to end to form a female die; and the upper punch and the lower punch are matched with a cavity of the female die. By virtue of a static demolding mode, after powder is pressed in the detachable female die, side pressure and pressing force are removed, the side plates are separated from the baffles, and a blank is taken out of a die core, therefore, the relative displacement of the blank in the female die is effectively avoided, the crack and breakage of the blank are eliminated, the production efficiency is improved, and the production cost is reduced.
Description
Technical field
The present invention relates to a kind of removable mold pressing carbide alloy board timber die and manufacture method thereof, belong to technical field of mold.
Background technology
At present, the carbide alloy board material forming mainly adopts the modes such as mold pressing, isostatic cool pressing.And press moulding mode adopts the monolithic devices cavity mould usually, is pressed.Adopt this mode sheet forming, the impact of elastic after effect during owing to the demoulding, sheet material soft paste wedge angle, water caltrop etc. locate easily to occur the problems such as crackle, layering.
Isostatic cool pressing is that powder is contained in the jacket, adopts the three-dimensional mode that loads, and makes the powder uniform-compression, then pressed compact is taken out in the cold isostatic press cavity, removes jacket, can obtain irregular pressed compact.In order to obtain the blank of qualified shape, also need adopt special lathe, milling machine that its surface irregularity place is carried out car, mills, repaiies the type processing, could obtain comparison rule sheet material soft paste, the production efficiency of blank is not high.
Summary of the invention
The objective of the invention is to overcome the deficiency that prior art exists, a kind of removable mold pressing carbide alloy board timber die and manufacture method thereof are provided, being intended to effectively solve the pressed sheet blank easily cracks and the problems such as layering, the postorder of cancellation blank cuts, repaiies the operations such as type processing, improve the production work efficiency, reduce production costs.
Purpose of the present invention is achieved through the following technical solutions:
The mould of removable mold pressing hard alloy plates, characteristics are: comprise upper punch, low punch, two blocks of side plates and two baffle plates, key head is all established at the two ends of every baffle plate, accordingly, the keyway that matches with key head is all established at the two ends of every block of side plate, baffle plate and side plate successively head and the tail assemble the formation former, and the die cavity of upper punch and low punch and former matches.
Further, the mould of above-mentioned removable mold pressing hard alloy plates, the width of described key head and keyway is 10 ~ 15 mm, and key head is provided with the oblique angle, and its angle is 45 ° ~ 60 °, and accordingly, keyway is provided with the oblique angle that matches.
Further, the mould of above-mentioned removable mold pressing hard alloy plates, the material of described baffle plate is carbide alloy or tool steel.
Again further, the mould of above-mentioned removable mold pressing hard alloy plates, the material of described side plate is carbide alloy or tool steel.
The manufacture method of the mould of the removable mold pressing hard alloy plates of the present invention comprises following processing step:
1. make two blocks of side plates and two baffle plates, the equal fine finishining in the two ends of every baffle plate goes out key head, and the equal fine finishining in the two ends of every block of side plate goes out the keyway that matches with key head;
2. baffle plate and side plate are dressed up former in advance under lateral pressure, detect cavity impression; Accurately measure perpendicularity and side plate and the die cavity of baffle plate formation and the perpendicularity of operating desk of die cavity side plate and baffle plate;
3. mark each side plate and baffle position, according to the testing result of cavity impression, keyway on key head and the side plate on the reconditioning baffle plate; Guarantee between die cavity and side plate vertical with operating desk and the baffle plate vertical;
4. baffle plate and side plate are assembled into former under lateral pressure, detect the cavity impression size;
5. according to the cavity impression size, reconditioning upper punch and low punch.
The substantive distinguishing features that technical solution of the present invention is outstanding and significant progressive being mainly reflected in:
1. the present invention by will with the keyway side plate with the baffle plate of key head, under the effect of lateral pressure, form former, changed the demoulding principle of traditional punching block mold pressing; Adopt static stripping means, behind the powder pressing, the removal lateral pressure is taken side plate and baffle plate apart, then blank is directly taken out, and effectively avoids blank that relative displacement occurs in former, thereby eliminates crackle or the layering of blank;
2. shortened stripping stroke, obviously reduced demould time and the demoulding dangerous, alleviated workman's labour intensity, the demoulding is convenient but also safety not only;
3. the blank that adopts mould of the present invention to suppress, its Density Distribution is more even, and need not soft processing; But in order to reduce the porosity of interiors of products, soft paste carries out isostatic cool pressing to be processed.
Description of drawings
Below in conjunction with accompanying drawing technical solution of the present invention is described further:
Fig. 1: the schematic top plan view before the die assembly of the present invention;
Fig. 2: the schematic top plan view behind the die assembly of the present invention;
Fig. 3: the cross-sectional schematic when mould of the present invention is used for compacting.
The specific embodiment
Such as Fig. 1, Fig. 2 and shown in Figure 3, the mould of removable mold pressing hard alloy plates, comprise upper punch 3, low punch 4, two blocks of side plates 2 and two baffle plates 1, the material of baffle plate 2 is carbide alloy or tool steel, the material of side plate 3 is carbide alloy or tool steel, key head is all established at the two ends of every baffle plate 1, accordingly, the keyway that matches with key head is all established at the two ends of every block of side plate 2, and the width of key head and keyway is 10 ~ 15 mm, key head is provided with the oblique angle, its angle is 45 ° ~ 60 °, and accordingly, keyway is provided with the oblique angle that matches, baffle plate and side plate successively head and the tail assemble the formation former, and upper punch 3 and low punch 4 match with the die cavity of former.
The manufacture method of the mould of removable mold pressing hard alloy plates, concrete manufacturing process is:
1. make two blocks of side plates and two baffle plates, the equal fine finishining in the two ends of every baffle plate goes out key head, and the equal fine finishining in the two ends of every block of side plate goes out the keyway that matches with key head;
2. baffle plate and side plate are dressed up former in advance under lateral pressure, detect cavity impression; Detect two blocks of side plates whether vertical with operating platform with the cavity impression that two baffle plates consist of, and the angle that consists of between side plate and the baffle plate 90 degree whether;
3. mark each side plate and baffle position, engrave A, B, C, D mark according to a definite sequence at side plate and baffle plate, determine problem and position that assembling exists; According to the testing result of cavity impression, keyway on key head and the side plate on the reconditioning baffle plate, the size of die cavity, present situation etc. after guaranteeing again to assemble;
4. baffle plate and side plate are assembled into former under lateral pressure, detect the cavity impression size;
5. according to the cavity impression size, finish grind honing upper punch and low punch.
Mould of the present invention can be used on and produces the hard alloy plates blank on the handpress, as shown in Figure 3.It should be noted that, adopt the unitary mould pressed sheet, the main cause that easily crackle occurs at sharp corner is that product sharp corner stress ratio is more concentrated.The reason of the easy layering of product soft paste is, during product stripping, after the pressed compact generation elasticity due to.And technical solution of the present invention has changed the demoulding principle of integral die, avoided the compacting defective of integral die, and adopt static stripping means, that is: after powder is suppressed in removable former, removal lateral pressure F and press power f, mobile side plate 2 and baffle plate 1 separate side plate and baffle plate, and blank takes out in core rod; Effectively avoid blank that relative displacement occurs in former, thereby eliminated crackle and the fracture of blank, improved the production work efficiency, reduced production cost.
Mould of the present invention is widely used in the sheet material of manufacturing (150 ~ 60) mm * (150 ~ 60) mm * (10 ~ 70) mm equal-specification.Blank pressed density distribution uniform, and need not soft processing, blank is behind sintering, and alloy inside is without the defectives such as cobalt lake, residual carbon, apparent flawless, good product quality.Mould structure is novel in design, and the demoulding is convenient but also safety not only, and production efficiency is high.
What need to understand is: the above only is preferred embodiment of the present invention; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. the mould of removable mold pressing hard alloy plates, it is characterized in that: comprise upper punch, low punch, two blocks of side plates and two baffle plates, key head is all established at the two ends of every baffle plate, accordingly, the keyway that matches with key head is all established at the two ends of every block of side plate, baffle plate and side plate successively head and the tail assemble the formation former, and the die cavity of upper punch and low punch and former matches.
2. the mould of removable mold pressing hard alloy plates according to claim 1, it is characterized in that: the width of described key head and keyway is 10 ~ 15 mm, and key head is provided with the oblique angle, and its angle is 45 ° ~ 60 °, and accordingly, keyway is provided with the oblique angle that matches.
3. the mould of removable mold pressing hard alloy plates according to claim 1, it is characterized in that: the material of described baffle plate is carbide alloy or tool steel.
4. the mould of removable mold pressing hard alloy plates according to claim 1, it is characterized in that: the material of described side plate is carbide alloy or tool steel.
5. the manufacture method of the mould of removable mold pressing hard alloy plates claimed in claim 1 is characterized in that comprising following processing step:
1. make two blocks of side plates and two baffle plates, the equal fine finishining in the two ends of every baffle plate goes out key head, and the equal fine finishining in the two ends of every block of side plate goes out the keyway that matches with key head;
2. baffle plate and side plate are dressed up former in advance under lateral pressure, detect cavity impression;
3. mark each side plate and baffle position, according to the testing result of cavity impression, keyway on key head and the side plate on the reconditioning baffle plate;
4. baffle plate and side plate are assembled into former under lateral pressure, detect the cavity impression size;
5. according to the cavity impression size, reconditioning upper punch and low punch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103787077A CN102847941A (en) | 2012-10-09 | 2012-10-09 | Die for detachable compression-molding hard alloy plate and manufacturing method of die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103787077A CN102847941A (en) | 2012-10-09 | 2012-10-09 | Die for detachable compression-molding hard alloy plate and manufacturing method of die |
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| Publication Number | Publication Date |
|---|---|
| CN102847941A true CN102847941A (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103787077A Pending CN102847941A (en) | 2012-10-09 | 2012-10-09 | Die for detachable compression-molding hard alloy plate and manufacturing method of die |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105777133A (en) * | 2016-04-29 | 2016-07-20 | 台州东新密封有限公司 | Manufacturing method and special die for one-step-formed multi-curved-face integral bullet-proof plates |
| CN108973205A (en) * | 2017-06-02 | 2018-12-11 | 自贡硬质合金有限责任公司 | A kind of special-shaped product molding die and its assembly method |
| CN110893462A (en) * | 2019-12-10 | 2020-03-20 | 广西梧州港德硬质合金制造有限公司 | Pressing die of hard alloy crushing disc |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07278607A (en) * | 1994-04-14 | 1995-10-24 | Nippon Steel Corp | Powder molding method using segmental die |
| JP2002105505A (en) * | 2000-09-26 | 2002-04-10 | Isao Matsushita | Method and apparatus for molding powder and granular material |
| CN201089012Y (en) * | 2007-08-30 | 2008-07-23 | 宁波科宁达工业有限公司 | Nd-Fe-B fillet mould |
| CN202921921U (en) * | 2012-10-09 | 2013-05-08 | 苏州新锐合金工具股份有限公司 | Detachable die for die pressing of hard alloy plates |
-
2012
- 2012-10-09 CN CN2012103787077A patent/CN102847941A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07278607A (en) * | 1994-04-14 | 1995-10-24 | Nippon Steel Corp | Powder molding method using segmental die |
| JP2002105505A (en) * | 2000-09-26 | 2002-04-10 | Isao Matsushita | Method and apparatus for molding powder and granular material |
| CN201089012Y (en) * | 2007-08-30 | 2008-07-23 | 宁波科宁达工业有限公司 | Nd-Fe-B fillet mould |
| CN202921921U (en) * | 2012-10-09 | 2013-05-08 | 苏州新锐合金工具股份有限公司 | Detachable die for die pressing of hard alloy plates |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105777133A (en) * | 2016-04-29 | 2016-07-20 | 台州东新密封有限公司 | Manufacturing method and special die for one-step-formed multi-curved-face integral bullet-proof plates |
| CN105777133B (en) * | 2016-04-29 | 2018-12-14 | 浙江东新新材料科技有限公司 | The preparation method and particular manufacturing craft of the whole shellproof plate of the more curved surfaces of disposal molding |
| CN108973205A (en) * | 2017-06-02 | 2018-12-11 | 自贡硬质合金有限责任公司 | A kind of special-shaped product molding die and its assembly method |
| CN110893462A (en) * | 2019-12-10 | 2020-03-20 | 广西梧州港德硬质合金制造有限公司 | Pressing die of hard alloy crushing disc |
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Application publication date: 20130102 |