CN218948528U - Cold pressing mold structure for bidirectional exposure of diamond string bead matrix - Google Patents
Cold pressing mold structure for bidirectional exposure of diamond string bead matrix Download PDFInfo
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- CN218948528U CN218948528U CN202223543068.3U CN202223543068U CN218948528U CN 218948528 U CN218948528 U CN 218948528U CN 202223543068 U CN202223543068 U CN 202223543068U CN 218948528 U CN218948528 U CN 218948528U
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- Prior art keywords
- pressure head
- matrix
- annular groove
- diamond
- positioning
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- 238000003825 pressing Methods 0.000 title claims abstract description 49
- 239000011159 matrix material Substances 0.000 title claims abstract description 48
- 239000011324 bead Substances 0.000 title claims abstract description 34
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 27
- 239000010432 diamond Substances 0.000 title claims abstract description 27
- 230000002457 bidirectional effect Effects 0.000 title abstract description 7
- 239000000758 substrate Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 239000000843 powder Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000000748 compression moulding Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The utility model provides a cold pressing die structure with a diamond bead matrix exposed bidirectionally, which comprises an upper pressing head, a lower pressing head, a core bar and a female die, wherein the bottom of the female die is sleeved with the top of the lower pressing head; the top end of the lower pressure head is provided with a positioning core which is matched with the perforation of the matrix for positioning, and an annular groove for placing the bottom end of the matrix is formed; the annular groove is detachably provided with a height adjusting gasket. The cold pressing die structure for the bidirectional exposure of the diamond string bead matrix can be used for pressing the diamond string bead pressed compact with the bidirectional exposure of the matrix, and can simplify the subsequent processing technology and reduce the production cost.
Description
Technical Field
The utility model relates to the technical field of diamond bead cold pressing dies, in particular to a cold pressing die structure with a diamond bead matrix exposed in two directions.
Background
Diamond wire saw is widely used as a flexible cutting tool for stone exploitation and working and shaping. The diamond beads are the core components of the diamond rope saw, and cold pressing is an important link of the production of the diamond beads. The diamond bead generally comprises a matrix working layer and a matrix, wherein the matrix working layer is pressed on the surface of the matrix, and the matrix is fixedly connected to the steel wire of the diamond rope saw. When the diamond rope saw is installed, the matrix is usually required to be exposed in two directions to effectively fix the beads on the steel wire rope.
The existing cold pressing die comprises an upper pressing head 1, a lower pressing head 2, a core bar 3 and a female die 4, wherein the top of the lower pressing head 2 is of a plane structure except for a positioning core 21, only a base body 6 at one end of the top of a pressed cold pressing bead blank is exposed, and one end of the other end, which is flush with the base body 6, is pressed again to form a base body bidirectional exposure when the other end is required to be sintered later, as shown in the accompanying figures 1 (a, b and c). Because the sintered pressure head is a graphite pressure head, and the matrix is steel, extrusion is generated between the pressure head and the matrix during sintering and pressing, and the graphite pressure head and the matrix are easy to deform, so that the quality and the qualification rate of products are affected. And the graphite pressure head has short service life and large loss, and greatly increases the production cost.
Based on the defects, if a cold-pressing die is designed to press the diamond bead pressed compact with the two-way exposed matrix, the process of pressing the cold-pressing bead pressed compact by a graphite pressing head to expose the other matrix in the sintering process can be avoided, the process can be simplified, and the product qualification rate can be improved.
Disclosure of Invention
The utility model provides a cold pressing die structure for bidirectionally exposing a diamond bead matrix, which can be used for pressing a diamond bead compact with bidirectionally exposing the matrix, and can simplify the subsequent processing technology and reduce the production cost.
In order to achieve the technical purpose and achieve the technical effect, the utility model solves the problems through the following technical scheme:
the cold pressing die structure comprises an upper pressing head, a lower pressing head, a core bar and a female die, wherein the bottom of the female die is sleeved with the top of the lower pressing head, a core hole for inserting the core bar is formed in the bottom of the upper pressing head, and the upper pressing head is inserted into a bead forming cavity formed by surrounding the core bar, the lower pressing head and the female die from the top of the female die; the top end of the lower pressure head is provided with a positioning core which is matched with the perforation of the matrix for positioning, and an annular groove for placing the bottom end of the matrix is formed; the annular groove is detachably provided with a height adjusting gasket.
In the scheme, the bottom of the base body is sleeved with the positioning core at the top end of the lower pressure head during installation, the bottom end of the base body is inserted into the annular groove, the insertion depth can be adjusted by the thickness of the selected height adjusting gasket, and the insertion depth of the bottom end of the base body is the exposed height of the base body at the bottom of the bead-string pressed compact. The diamond bead pressed compact with the substrate exposed bidirectionally can be pressed at one time through the structure, and has the advantages of simple structure and simple operation.
Furthermore, the bottom end of the core rod is provided with a positioning table which is matched with the perforation of the matrix for positioning, the outer diameters of the core rod and the matrix are the same, and the inner diameter of the upper pressure head is the same as the outer diameter of the core rod.
Further, the outer diameters of the upper pressure head and the lower pressure head are 11.9mm, and the diameter of the positioning core is 4.2mm; the outer diameter of the annular groove is 7.2mm, the inner diameter of the annular groove is 4.2mm, and the depth of the annular groove is 5mm; the inner diameter and the outer diameter of the height-adjusting gasket are the same as the annular groove, and the thickness of the height-adjusting gasket is 3mm.
Further, the height-adjusting gasket is made of silica gel.
The utility model has the following beneficial effects:
according to the cold pressing mold structure with the bidirectional exposure of the diamond bead matrix, the lower pressure head with the annular groove is combined with the height adjusting gasket in the groove, so that when the matrix is put in the assembly mold, the matrix can sink into the annular groove, powder put in the assembly mold is blocked by the matrix and cannot enter the groove, the end faces of the matrix and the powder are kept motionless in the bead compression molding process, the matrix protrudes out of the pressed compact below after the compression molding, and the matrix keeps exposed below. The exposure height below the substrate can be controlled by the thickness of the selected height-adjusting gasket, and gaskets with different thicknesses are selected to have different exposure heights.
The cold pressing mold structure can realize bidirectional exposure of the diamond string bead matrix on the basis of not changing the traditional semi-automatic cold pressing operation, reduces mold loss and matrix deformation caused by subsequent sintering of the string bead, can effectively reduce cost, and has the characteristics of simple method, strong forward compatibility of the process and the like.
Drawings
FIG. 1 (a) is a schematic diagram of a structure of a cold press mold before pressing;
FIG. 1 (b) is a schematic diagram of a structure after the prior cold pressing mold is pressed;
fig. 1 (c) is a schematic diagram of a cold-pressed bead compact pressed by a conventional cold-pressing die;
FIG. 2 is a schematic structural view of a cold press mold structure of the present utility model;
FIG. 3 (a) is a schematic diagram of the structure of the cold press mold of the present utility model before pressing;
FIG. 3 (b) is a schematic view of the structure of the cold press mold of the present utility model after the structure is pressed;
fig. 3 (c) is a schematic diagram of a cold-pressed bead compact pressed by the cold-pressing die structure of the utility model.
Drawing number identification: 1. the device comprises an upper pressing head, a lower pressing head, a positioning core, an annular groove, a core bar, a positioning table, a female die, a height adjusting gasket, a base body, a powder and powder.
Detailed Description
The technical solutions in the embodiments of the present utility model are clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The specific embodiments described herein are to be considered in an illustrative sense only and are not intended to limit the utility model.
The main body of the cold pressing mold structure with the two-way exposure of the diamond bead matrix in the embodiment comprises an upper pressing head 1, a lower pressing head 2, a core rod 3, a female mold 4 and a height adjusting gasket 5 as shown in figures 2 and 3. The upper pressure head 1 and the lower pressure head 2 are arranged in an up-down gap, the upper pressure head 1 and the lower pressure head 2 are respectively inserted into the female die 4 from the upper end and the lower end, and the core rod 3 is inserted into a core hole formed in the bottom of the upper pressure head 1. The upper pressure head 1, the lower pressure head 2, the core rod 3 and the female die 4 enclose a bead molding cavity for pressing cold-pressed bead compacts.
The top end of the lower pressure head 2 and the bottom end of the core bar 3 are provided with a positioning core 21 and a positioning table 31 which longitudinally correspond, and the positioning table 31 and the positioning core 21 are respectively put into the through holes of the matrix 6 from the upper end and the lower end to limit the matrix 6 axially and radially. The top end of the lower pressure head 2 is also provided with an annular groove 22 into which the bottom end of the base body 6 can be sunk, and the annular groove 22 is provided with a height-adjusting gasket 5. The sinking height of the base body 6 is controlled by the height adjusting gasket 5, and when the height adjusting gasket 5 is thick, the sinking amount is small, and the exposed height below the base body 6 is small. The height adjusting gasket 5 is made of silica gel.
The inner diameter of the upper pressure head 1, the outer diameter of the core rod 3 and the outer diameter of the matrix 6 are the same, when the upper pressure head 1 is pressed down, the upper pressure head can be matched with the outer diameter of the core rod 3 and the outer diameter of the matrix 6 in sequence, and the top surface of the powder 8 can be pressed to a position lower than the top surface of the matrix 6, so that the upper part of the matrix 6 is exposed.
In the embodiment, the outer diameter of the upper pressure head 1 and the lower pressure head 2 is preferably 11.9mm, and the diameter of the positioning core 21 is preferably 4.2mm; the annular groove 22 has an outer diameter of 7.2mm, an inner diameter of 4.2mm and a groove depth of 5mm; the height-adjusting shim 5 has the same inner and outer diameters as the annular groove 22 and a thickness of 3mm.
With the two-way exposed cold pressing mold structure of the diamond bead matrix according to the embodiment, as shown in fig. 3 (a and b), the height adjusting gasket 5 is first placed into the annular groove 22 of the lower pressing head 2, and the matrix 6 is mounted on the top end of the lower pressing head 2, so that the bottom end of the matrix 6 is sunk into the annular groove 22. And then the female die 4 is assembled with the lower pressing head 2, and the core rod 3 is assembled with the top of the matrix 6. After the assembly is completed, the powder 8 is put into a groove between the core rod 3 and the female die 4. Finally, the powder 8 is pressed down to the required height through the upper pressure head 1, the top surface of the powder 8 is lower than the top surface of the base body 6, and the upper part of the base body 6 is exposed; the bottom surface of the powder material 8 is higher than the bottom surface of the base body 6, and the lower part of the base body 6 is exposed. And removing all the parts to obtain a diamond bead compact with a base body exposed bidirectionally, as shown in figure 3 (c).
The embodiments of the present utility model are described in detail above with reference to the drawings, but the present utility model is not limited to the described embodiments. Many changes, modifications, substitutions and alterations are possible to those embodiments without departing from the spirit and scope of the present utility model.
Claims (4)
1. The utility model provides a two-way cold pressing die structure that exposes of diamond string bead base member, includes pressure head (1), lower pressure head (2), core bar (3) and female die (4), female die (4) bottom cup joints with lower pressure head (2) top, goes up pressure head (1) bottom and sets up and supplies core bar (3) male core hole, goes up pressure head (1) and inserts from female die (4) top and enclose into string bead molding cavity with core bar (3), lower pressure head (2), female die (4), its characterized in that:
the top end of the lower pressure head (2) is provided with a positioning core (21) which is matched with the perforation of the base body (6) for positioning, and an annular groove (22) into which the bottom end of the base body (6) can be placed is formed; the annular groove (22) is detachably provided with a height adjusting gasket (5).
2. The cold press mold structure for bi-directional exposure of diamond bead substrates according to claim 1, wherein: the bottom end of the core bar (3) is provided with a positioning table (31) which is matched with the perforation of the matrix (6) for positioning, the outer diameters of the core bar (3) and the matrix (6) are the same, and the inner diameter of the upper pressure head (1) is the same as the outer diameter of the core bar (3).
3. The cold press mold structure for bi-directional exposure of diamond bead matrix according to claim 2, wherein: the outer diameters of the upper pressure head (1) and the lower pressure head (2) are 11.9mm, and the diameter of the positioning core (21) is 4.2mm; the outer diameter of the annular groove (22) is 7.2mm, the inner diameter is 4.2mm, and the groove depth is 5mm; the inner diameter and the outer diameter of the height-adjusting gasket (5) are the same as those of the annular groove (22), and the thickness of the height-adjusting gasket is 3mm.
4. The cold press mold structure for bi-directional exposure of diamond bead substrates according to claim 1, wherein: the height adjusting gasket (5) is made of silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223543068.3U CN218948528U (en) | 2022-12-29 | 2022-12-29 | Cold pressing mold structure for bidirectional exposure of diamond string bead matrix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223543068.3U CN218948528U (en) | 2022-12-29 | 2022-12-29 | Cold pressing mold structure for bidirectional exposure of diamond string bead matrix |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218948528U true CN218948528U (en) | 2023-05-02 |
Family
ID=86138207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223543068.3U Active CN218948528U (en) | 2022-12-29 | 2022-12-29 | Cold pressing mold structure for bidirectional exposure of diamond string bead matrix |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218948528U (en) |
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2022
- 2022-12-29 CN CN202223543068.3U patent/CN218948528U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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Address after: No. 20 Tieshan Road, Guilin High-tech Zone, Guangxi Zhuang Autonomous Region, 541004 Patentee after: Guilin Tebang New Materials Co.,Ltd. Country or region after: China Address before: No. 20 Tieshan Road, Guilin High-tech Zone, Guangxi Zhuang Autonomous Region, 541004 Patentee before: GUILIN TEBON SUPERHARD MATERIAL Co.,Ltd. Country or region before: China |