CN216067984U - Pressing die for sector building blocks made of meter-scale buffer material 1/8 - Google Patents
Pressing die for sector building blocks made of meter-scale buffer material 1/8 Download PDFInfo
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- CN216067984U CN216067984U CN202023194679.2U CN202023194679U CN216067984U CN 216067984 U CN216067984 U CN 216067984U CN 202023194679 U CN202023194679 U CN 202023194679U CN 216067984 U CN216067984 U CN 216067984U
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Abstract
The utility model belongs to the field of preparation of large building blocks made of high-level waste geological disposal buffer materials, and particularly relates to a pressing die for 1/8 fan-shaped building blocks made of a meter-scale buffer material. According to the utility model, a first concave die seat, a second concave die seat, a third concave die seat and a fourth concave die seat are sequentially connected through bolts, a first concave die lining, a second concave die lining, a third concave die lining and a fourth concave die lining are respectively arranged on the inner walls of the corresponding concave die seats, and the concave die seats and the concave die linings form an integral concave die; the bottom of the convex die base is provided with a convex die lining plate through a bolt, the convex die base and the convex die lining plate form an integral convex die, the top surface of the bottom plate is provided with a groove matched with the positioning block, and the positioning block is arranged in the groove; a bolt hole is processed in the groove, and the pressing plate is placed on the positioning block and fastened through the bolt; the female die is placed on the bottom plate and is limited through the positioning block. The method is suitable for mechanized operation and industrial batch preparation of the high-compaction bentonite building blocks.
Description
Technical Field
The utility model belongs to the field of preparation of large building blocks made of high-level waste geological disposal buffer materials, and particularly relates to a pressing die for 1/8 fan-shaped building blocks made of a meter-scale buffer material.
Background
The high-level waste in China adopts a deep geological disposal mode, and utilizes a multiple barrier system consisting of artificial barriers (waste tanks, buffer materials, backfill materials and the like) and natural barriers (underground rock masses) to retard nuclide migration. The buffer material is used as the last artificial barrier between the waste tank and the geological body, plays important roles of engineering barrier, hydraulic barrier, chemical barrier, conduction and dissipation radioactive waste decay heat and the like, and is an effective guarantee for the safety and stability of the geological disposal reservoir. Domestic and foreign studies show that bentonite with montmorillonite as the main component is considered to be the most suitable buffer material base material for geological disposal of high-level waste.
The buffer material is usually wrapped around the waste tank in a building block stacking mode, so the research work of large-scale indoor model tests and underground laboratory field in-situ tests carried out in various countries around the world mostly adopts the buffer material prefabricated building blocks. The cushion material building block is mainly produced by a static compaction preparation method, and considering that the building block generates an expansion and rebound phenomenon under high pressure application force, the design and processing of a pressing die are the key points for ensuring the engineering performance of the building block. Meanwhile, considering that the size and the weight of the high-compaction buffer material building block are larger and larger, the operation of the compaction die can be realized without manpower, so that a large-scale pressing die suitable for mechanical operation needs to be designed and processed, and a foundation is laid for carrying out large-scale indoor and field model tests of 1:1 in the future. Therefore, the compaction die which has simple and practical structure, convenient assembly and disassembly operation and is suitable for industrial batch production is developed, and has important practical significance and practical value.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pressing die for a rice-scale buffer material 1/8 fan-shaped building block, which is suitable for mechanized operation and industrialized batch preparation of high-compaction bentonite building blocks.
The technical scheme adopted by the utility model is as follows:
a1/8 fan-shaped building block pressing die with a meter-scale buffer material comprises a bottom plate, a female die base, a female die lining, a male die base, a male die lining plate, a positioning baffle and a pressing plate, wherein the female die base I, the female die base II, the female die base III and the female die base IV are sequentially connected through bolts, the female die lining I, the female die lining II, the female die lining III and the female die lining IV are respectively installed on the inner walls of the corresponding female die bases, and the female die base and the female die lining form an integral female die; the bottom of the convex die base is provided with a convex die lining plate through a bolt, the convex die base and the convex die lining plate form an integral convex die, the top surface of the bottom plate is provided with a groove matched with the positioning block, and the positioning block is arranged in the groove; a bolt hole is processed in the groove, and the pressing plate is placed on the positioning block and fastened through the bolt; the female die is placed on the bottom plate and is limited through the positioning block.
The sector included angle formed by the combination of the integral female dies is 44.5 degrees, the inner diameter of the sector block is 1-3 mm larger than that of the 1/8 sector block, and the outer diameter of the sector block is 1-3 mm smaller than that of the 1/8 sector block.
After the male die and the female die are assembled, the unilateral clearance is 0.1 mm.
The peripheral size of the male die lining plate is 2cm larger than that of the male die base; the bottom plate is provided with a bottom plate lug hole and a positioning baffle groove.
The design height of the female die seat and the female die lining is 2 times of the height of a building block to be pressed, and the guide height of 1-2 cm is added; the overall design height of the male die holder and the male die lining plate is 5-10 cm greater than that of the female die; the design size of the bottom plate is to completely accommodate the die holder and the positioning block, and an operation space of 5-10 cm is reserved.
The die is characterized in that the die holder, the punch holder, the positioning block and the pressing plate are made of 45# steel, and the die lining, the punch lining plate and the bottom plate are made of 4Cr 13.
The female die lining, the male die lining plate and the bottom plate are in contact with the pressed sector building block bentonite, the quenching hardness is HRC55-60, and the quenching layer is not less than 5 mm.
The flatness of the bottom plate and the male die is not more than 0.2mm, and the verticality between the matching surface between the female die and the bottom plate and the inner side wall of the female die is not more than 0.2 mm.
The inner side of the die holder adopts an inclined plane structure with an inclined angle of 8.7 degrees, and the outer side of the die lining adopts an inclined plane structure with an inclined angle of 8.7 degrees to be matched with the inclined plane structure of the die holder.
The convex die holder is of an integral structure, and two lifting ring holes are formed in two side faces of the convex die holder, so that the convex die holder can be conveniently lifted; the male die lining plate is positioned at the bottom of the male die base, and a bolt is adopted to reversely handle the building block from the upper side in order to prevent the building block from having an indentation.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the pressing die for the 1/8 fan-shaped building blocks made of the meter-scale buffer material adopts a split structure combination mode, is simple and practical in structure, can replace easily-damaged and easily-consumed accessories (such as lining plates, bolts, pressing plates and the like) at irregular intervals, and prolongs the service life of the die.
(2) The pressing die for the 1/8 fan-shaped building blocks made of the meter-scale buffer material is provided with the positioning stop device, is accurate and convenient to assemble and disassemble, is suitable for mechanical operation and industrial batch production, and greatly improves the production efficiency.
(3) According to the pressing die for the 1/8 fan-shaped building blocks made of the meter-scale buffer material, provided by the utility model, each part has the characteristics of high strength and high hardness, and the pressing die is suitable for preparing engineering-scale high-compaction bentonite building blocks.
(4) The pressing die for the 1/8 fan-shaped building blocks made of the meter-scale buffer material is provided with the pressing plate device, so that the die can be prevented from moving upwards under the action of high pressure, and the pressing and forming effect of the building blocks is effectively guaranteed.
Drawings
FIG. 1 is a top view of a sector block pressing mold made of a buffering material 1/8 with a meter scale according to the present invention;
FIG. 2 is a plan view of a sector block pressing die for a meter-scale cushioning material 1/8 according to the present invention;
fig. 3 is a plan view of the male mold of a fan-shaped block pressing mold for buffering materials 1/8 with a meter scale provided by the utility model.
In the figure: 1-first concave die holder, 2-second concave die holder, 3-third concave die holder, 4-fourth concave die holder, 5-first concave die lining, 6-second concave die lining, 7-third concave die lining, 8-fourth concave die lining, 9-positioning baffle, 10-pressing plate, 11-bottom plate, 12-bottom plate lifting lug, 13-convex die lifting lug, 14-convex die holder, 15-bolt, 16-bolt, 17-bolt and 18-convex die lining plate.
Detailed Description
The present invention provides a sector block pressing mold of a cushioning material 1/8 with a meter scale according to the present invention, which is further described in detail with reference to the accompanying drawings and the specific embodiments.
As shown in fig. 1, the utility model provides a pressing mold for a rice-scale buffer material 1/8 fan-shaped building block, which mainly comprises a bottom plate 11, a die holder, a die lining, a die holder 14, a die lining plate 18, a positioning block 9 and a pressing plate 10.
The assembled die can be used for preparing the buffer material fan-shaped building block with the outer diameter of 1.2m, the inner diameter of 0.6m, the included angle of 45 degrees and adjustable height. 8 such sector blocks can be spliced into a circular ring shape with the outer diameter of 1.2m and the inner diameter of 0.6m, and the sector blocks are wrapped around a waste tank in a block stacking mode.
The die lining I5, the die lining II 6, the die lining III 7 and the die lining IV 8 are respectively arranged on the inner wall of the corresponding die holder, and the die holder and the die lining form an integral die; the sector included angle formed by the combination of the integral female dies is 44.5 degrees, the inner diameter of the sector block is 1-3 mm larger than that of the 1/8 sector block, and the outer diameter of the sector block is 1-3 mm smaller than that of the 1/8 sector block.
As shown in fig. 2 and 3, a punch lining plate 18 is mounted at the bottom of the punch holder 14 through a bolt 17, the punch holder 14 and the punch lining plate 18 form an integral punch, and after the punch and the die are closed, the single-side gap is 0.1 mm; in order to facilitate die assembly and disassembly, the peripheral size of the male die lining plate 18 is 2cm larger than that of the male die holder 14; the bottom plate 11 is provided with 4 bottom plate lug holes and a positioning baffle groove.
4 grooves matched with the positioning blocks 9 are processed on the top surface of the bottom plate 11, and the positioning blocks 9 are arranged in the grooves; a bolt hole is processed in the groove, and the pressing plate 10 is placed on the positioning block 9 and is fastened through a bolt 16; the female die is placed on the bottom plate 11 and limited by the positioning block 9.
The design height of the female die seat and the female die lining is 2 times of the height of a building block to be pressed, and the guide height of 1-2 cm is added; the overall design height of the male die holder 14 and the male die lining plate 18 is 5-10 cm greater than that of the female die; the design size of the bottom plate 11 is to completely accommodate the die holder and the positioning block 9, and an operation space of 5-10 cm is reserved.
The die holder, the punch holder 14, the positioning baffle 9 and the pressing plate 10 are made of 45# steel, the die lining, the punch lining plate 18 and the bottom plate 11 are made of 4Cr13, and the bolts are bolts with the highest type strength.
All the quenching hardness of the die lining, the punch lining plate 18 and the bottom plate 11 which are contacted with the bentonite is HRC55-60, and the quenching hardness layer is not less than 5 mm.
The flatness of the bottom plate 11 and the male die is not more than 0.2mm, and the verticality between the matching surface between the female die and the bottom plate 11 and the inner side wall of the female die is not more than 0.2 mm.
The outer sides of the female die holder and the male die holder 14 are both provided with reinforcing rib structures, so that the strength of the die is improved, and meanwhile, the weight is reduced and the cost is saved.
The top of the die seat and the top of the die lining are both provided with bolt holes; the inner side of the die holder adopts an inclined plane structure with an inclined angle of 8.7 degrees, and the outer side of the die lining adopts an inclined plane structure with an inclined angle of 8.7 degrees to be matched with the inclined plane structure of the die holder; so as to facilitate the hoisting and the disassembly.
The male die holder 14 is of an integral structure, and two lifting ring holes are formed in two side faces of the male die holder, so that the male die holder can be conveniently lifted; the punch lining plate 18 is positioned at the bottom of the punch holder 14, and is reversely held from the top by bolts 17 to prevent the building block from having impression.
When in use, the assembly work is firstly carried out. Firstly, the bottom plate lifting lug 12 is tightly connected with the bottom plate 11, and the bottom plate 11 is horizontally placed on the bearable ground by adopting a crown block. Four positioning blocks 9 are placed in the grooves of the bottom plate. After the first die seat 1, the second die seat 2, the third die seat 3 and the fourth die seat 4 are combined according to the fan shape, a first die lining 5, a second die lining 6, a third die lining 7 and a fourth die lining 8 which are matched with the first die seat, the second die seat, the third die seat and the fourth die seat are respectively hoisted, and then the whole die is fastened and molded by using bolts 15. Four press plates 10 are placed on the positioning block 9 and fastened by bolts 16 to press the female die holder to prevent the female die holder from moving upwards. And (3) tightly connecting the punch holder 14 with the punch lining plate 18 through a bolt 17, and connecting the punch lifting lug 13 with the punch holder 14 to form an integral punch. After the assembly is finished, filling the bentonite raw material into a fan-shaped die, tamping and scraping. And hoisting the convex die lifting lug 13 by using a crown block, aligning the convex die lifting lug with the lining space of the concave die, and slowly dropping to finish die assembly. And hoisting the bottom plate lifting lug 12 by using a crown block, integrally hoisting the fan-shaped die to the press machine, and starting pressing. After preparation, the fan-shaped die is hoisted to the open area, and the convex die holder 14 is hoisted after the bolts 15 and 16 are loosened. And hoisting the first female die lining 5, the second female die lining 6, the third female die lining 7 and the fourth female die lining 8 respectively, hoisting the first female die base 1, the second female die base 2, the third female die base 3 and the fourth female die base 4 respectively, taking out the compacted bentonite blocks, and finally cleaning all parts to facilitate subsequent assembly and use.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (9)
1. A meter-scale buffer material 1/8 sector block pressing die is characterized in that: the die comprises a bottom plate, a die seat, a die lining, a male die seat, a male die lining plate, a positioning baffle and a pressing plate, wherein the die seat I, the die seat II, the die seat III and the die seat IV are sequentially connected through bolts; the bottom of the convex die base is provided with a convex die lining plate through a bolt, the convex die base and the convex die lining plate form an integral convex die, the top surface of the bottom plate is provided with a groove matched with the positioning block, and the positioning block is arranged in the groove; a bolt hole is processed in the groove, and the pressing plate is placed on the positioning block and fastened through the bolt; the female die is placed on the bottom plate and limited by the positioning block;
the sector included angle formed by the combination of the integral female dies is 44.5 degrees, the inner diameter of the sector block is 1-3 mm larger than that of the 1/8 sector block, and the outer diameter of the sector block is 1-3 mm smaller than that of the 1/8 sector block.
2. The fan-shaped block pressing die for the meter-scale buffer material 1/8 as claimed in claim 1, wherein: after the male die and the female die are assembled, the unilateral clearance is 0.1 mm.
3. The fan-shaped block pressing die for the meter-scale buffer material 1/8 as claimed in claim 1, wherein: the peripheral size of the male die lining plate is 2cm larger than that of the male die base; the bottom plate is provided with a bottom plate lug hole and a positioning baffle groove.
4. The fan-shaped block pressing die for the meter-scale buffer material 1/8 as claimed in claim 1, wherein: the design height of the female die seat and the female die lining is 2 times of the height of a building block to be pressed, and the guide height of 1-2 cm is added; the overall design height of the male die holder and the male die lining plate is 5-10 cm greater than that of the female die; the design size of the bottom plate is to completely accommodate the die holder and the positioning block, and an operation space of 5-10 cm is reserved.
5. The fan-shaped block pressing die for the meter-scale buffer material 1/8 as claimed in claim 1, wherein: the die is characterized in that the die holder, the punch holder, the positioning block and the pressing plate are made of 45# steel, and the die lining, the punch lining plate and the bottom plate are made of 4Cr 13.
6. The fan-shaped block pressing die for the meter-scale buffer material 1/8 as claimed in claim 1, wherein: the female die lining, the male die lining plate and the bottom plate are in contact with the pressed sector building block bentonite, the quenching hardness is HRC55-60, and the quenching layer is not less than 5 mm.
7. The fan-shaped block pressing die for the meter-scale buffer material 1/8 as claimed in claim 1, wherein: the flatness of the bottom plate and the male die is not more than 0.2mm, and the verticality between the matching surface between the female die and the bottom plate and the inner side wall of the female die is not more than 0.2 mm.
8. The fan-shaped block pressing die for the meter-scale buffer material 1/8 as claimed in claim 1, wherein: the inner side of the die holder adopts an inclined plane structure with an inclined angle of 8.7 degrees, and the outer side of the die lining adopts an inclined plane structure with an inclined angle of 8.7 degrees to be matched with the inclined plane structure of the die holder.
9. The fan-shaped block pressing die for the meter-scale buffer material 1/8 as claimed in claim 1, wherein: the convex die holder is of an integral structure, and two lifting ring holes are formed in two side faces of the convex die holder, so that the convex die holder can be conveniently lifted; the male die lining plate is positioned at the bottom of the male die base, and a bolt is adopted to reversely handle the building block from the upper side in order to prevent the building block from having an indentation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023194679.2U CN216067984U (en) | 2020-12-25 | 2020-12-25 | Pressing die for sector building blocks made of meter-scale buffer material 1/8 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023194679.2U CN216067984U (en) | 2020-12-25 | 2020-12-25 | Pressing die for sector building blocks made of meter-scale buffer material 1/8 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216067984U true CN216067984U (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023194679.2U Active CN216067984U (en) | 2020-12-25 | 2020-12-25 | Pressing die for sector building blocks made of meter-scale buffer material 1/8 |
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| Country | Link |
|---|---|
| CN (1) | CN216067984U (en) |
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- 2020-12-25 CN CN202023194679.2U patent/CN216067984U/en active Active
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