CN216127399U - Die-cutting tool for manufacturing sand-resistant gasket for casting - Google Patents
Die-cutting tool for manufacturing sand-resistant gasket for casting Download PDFInfo
- Publication number
- CN216127399U CN216127399U CN202122853611.9U CN202122853611U CN216127399U CN 216127399 U CN216127399 U CN 216127399U CN 202122853611 U CN202122853611 U CN 202122853611U CN 216127399 U CN216127399 U CN 216127399U
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- Prior art keywords
- cutter
- limiting block
- sand
- die
- inner cutter
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- 239000004576 sand Substances 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000005266 casting Methods 0.000 title claims abstract description 11
- 238000005520 cutting process Methods 0.000 title claims description 7
- 230000000903 blocking effect Effects 0.000 claims abstract description 12
- 238000012856 packing Methods 0.000 claims description 7
- 229910001315 Tool steel Inorganic materials 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000004080 punching Methods 0.000 abstract description 18
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 21
- 238000000034 method Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 3
- 210000002489 tectorial membrane Anatomy 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Images
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- Gasket Seals (AREA)
Abstract
The utility model discloses a punching tool for manufacturing a sand-blocking gasket for casting, which comprises an outer cutter, an inner cutter, a limiting block, a spring and a snap spring, wherein the outer cutter is cylindrical, a bottom cutter edge is used for punching the external contour of the sand-blocking gasket, the upper end of the limiting block is arranged at the top of the outer cutter, the lower end of the limiting block is sleeved in the outer cutter, a step through hole is axially arranged in the limiting block in a penetrating manner, the inner cutter is sleeved in the step hole of the limiting block, the lower end of the inner cutter extends out of the limiting block, a cutter edge is arranged at the bottom of the inner cutter and is used for punching the internal shape of the sand-blocking gasket, the spring is sleeved on the inner cutter and is arranged in a large-diameter hole of the step through hole of the limiting block, the snap spring is clamped on the inner cutter and is used for limiting when the inner cutter is reset so as to ensure that the inner cutter does not fall off the punching tool during resetting, the sand-blocking gasket can be molded and can be quickly separated by the up and down movement of the inner cutter, the manufacturing efficiency and the quality of the sand blocking gasket are improved.
Description
Technical Field
The utility model relates to the technical field of punching tools, in particular to a punching tool for manufacturing a sand-blocking gasket for casting.
Background
Hinder the sand packing ring and make for high temperature resistant silica gel skin, be located the psammitolite mould sand blowing board, get into the switch of psammitolite mould as tectorial membrane sand, when equipment does not pressurize, middle opening is closed, guarantee that tectorial membrane sand does not get into the mould in advance, in the pressurized in-process of equipment, middle opening is opened, guarantee that tectorial membrane sand can normally get into the psammitolite mould, consequently, the shaping quality direct influence product quality of packing ring, because this hinders sand packing ring and is non-standard spare, need manual preparation by oneself, use the scissors, mode preparation such as burin, low efficiency, the packing ring quality is poor, can't guarantee the continuity of production, cause and shut down waiting.
Disclosure of Invention
The utility model aims to provide a punching tool for manufacturing a sand blocking gasket for casting, which can be used for manufacturing the sand blocking gasket in a one-step forming manner, and can realize quick separation of the gasket by up-and-down movement of an inner cutter, so that the manufacturing efficiency and quality of the sand blocking gasket are improved.
In order to achieve the purpose, the punching tool for manufacturing the sand-blocking gasket for casting comprises an outer cutter, an inner cutter, a limiting block, a spring and a snap spring, wherein the outer cutter is cylindrical, a bottom cutter edge is used for punching the external outline of the sand-blocking gasket, the upper end of the limiting block is arranged at the top of the outer cutter, the lower end of the limiting block is sleeved in the outer cutter, a step through hole is axially arranged in the limiting block in a penetrating mode, the inner cutter is sleeved in the step hole of the limiting block, the lower end of the inner cutter extends out of the limiting block, a cutter edge is arranged at the bottom of the inner cutter and used for punching the internal shape of the sand-blocking gasket, the spring is sleeved on the inner cutter and is arranged in a large-diameter hole of the step through hole of the limiting block, and the snap spring is clamped on the inner cutter and used for limiting when the inner cutter returns to ensure that the inner cutter does not fall out of the punching tool when the inner cutter returns.
Further, the limiting block and the outer cutter are in transition fit, the limiting block and the outer cutter can be fixed and can be disassembled and assembled conveniently, and the inner cutter and the limiting block are in clearance fit, so that the inner cutter can move up and down in the limiting block.
Further, the shape of the edge of the inner cutter is matched with the internal shape of the sand blocking gasket, the height of the inner cutter is larger than or equal to the height of the limiting block and the height of the outer cutter after assembly, the edges of the inner cutter and the outer cutter are made of alloy tool steel, and the hardness of the alloy tool steel is larger than or equal to HRC 60.
Furthermore, the limiting block is made of 45 steel, the hardness is greater than or equal to HRC50, and the upper portion of the limiting block is guaranteed not to deform after being stamped.
The utility model has the beneficial effects that:
1. through the outer cutter and the inner cutter of the corresponding size of preparation and sand blocking gasket external shape and internal shape to make up into an organic whole, can once cut into the notched sand blocking gasket of inside area cross with rubber materials punching, after the die-cut shaping, utilize the inner cutter to reciprocate and realize that the gasket deviates from fast under the spring action, improve machining efficiency, the sand blocking gasket outline that produces is even, and internal shape is unified.
2. The structural tool can be used for manually manufacturing multi-shape gaskets and can also be used for automatic production.
3. By adopting the punching tool to manufacture the sand-blocking gasket, the manufacturing efficiency is improved by 30 times, the quality is improved, and the production efficiency of the sand core is improved by 1%.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a structural schematic diagram of the sand-blocking washer.
1-external cutter, 2-internal cutter, 3-limiting block, 4-spring, 5-snap spring, 6-sand-resisting washer and 31-step through hole.
Detailed Description
The following describes embodiments of the present invention in detail.
Referring to fig. 1-2, the utility model provides a punching tool for manufacturing a sand-blocking gasket for casting, which comprises an outer cutter 1, an inner cutter 2, a limiting block 3, a spring 4 and a snap spring 5, wherein the outer cutter 1 is cylindrical, a bottom edge is used for punching the outer contour of a sand-blocking gasket 6, the limiting block 3 is a stepped shaft, the upper end is arranged at the top of the outer cutter 1, the lower end is sleeved in the outer cutter 1, a stepped through hole 31 is axially arranged in the limiting block 3 in a penetrating manner, the inner cutter 2 is sleeved in the stepped hole 31 of the limiting block, the lower end extends out of the limiting block 3, a cross edge is arranged at the bottom of the inner cutter 2 and is used for punching a cross opening in the sand-blocking gasket, of course, the edge shape at the bottom of the inner cutter can be designed into other shapes, the spring 4 is sleeved on the inner cutter 2 and is arranged in a large-diameter hole of the stepped through hole 31 of the limiting block, 5 joints of jump ring are on interior cutter 2, and after die-cut completion, the punching tool promotes the in-process at the punch press, and interior cutter 2 is under the effect of spring 4, and rebound through setting up jump ring 5, is spacing when the internal cutter return, and the cutter does not deviate from the punching tool when the return in guaranteeing to including the cutter wearing and tearing back, only need take out jump ring 5, just can take out the restoration with interior cutter fast.
In this embodiment, stopper 3 and outer cutter 1 adopt transition fit, guarantee that stopper 3 and outer cutter 1 can fix, the dismouting is restoreed after the outer cutter edge of a knife wearing and tearing of being convenient for again.
Adopt clearance fit between interior cutter 2 and the stopper 3, guarantee interior cutter 2 can freely remove from top to bottom in stopper 3, can deviate from fast in the mould 6 follow of hindering the sand washer simultaneously.
In the embodiment, the external diameter and the internal cross size of the sand-blocking gasket 6 are taken as standards, the diameter sizes of the outer circle and the internal cross are determined, the wall thickness of the external cutter edge is guaranteed to be larger than or equal to 1.5mm, the total height of the internal cutter is larger than or equal to the height of the limiting block and the height of the external cutter after assembly, the inner cutter 2 edge and the external cutter 1 edge are made of alloy steel tool steel, the hardness is larger than or equal to HRC60, the sufficient strength, hardness and toughness of the edge are guaranteed, and the cutter coiling and damage are prevented;
according to the inner diameter size of the outer cutter, a limiting block 3 is manufactured, a 45 steel quenching process is selected, the hardness is more than or equal to HRC50, and the upper part of the limiting block is guaranteed not to deform after being stamped;
when the sand blocking gasket is machined, a combined tool is installed into a punch press, a rubber sheet is placed at the position of a die-cut opening at the bottom of the die, the die is pressed down by operating the punch press, the sand blocking gasket 6 to be machined can be formed on the sheet in a die-cut mode, then a punch of the punch press is lifted, the combined tool is lifted along with the punch of the punch press, in the lifting process, an inner cutter returns upwards under the action of a spring, the sand blocking gasket is taken out of the die at the same time, the whole machining process can be formed in a one-step die-cut mode, the operation method is simple, the machining efficiency is improved, the manufacturing efficiency is improved by 30 times on the original basis, the quality of the manufactured gasket is improved, and the production efficiency of a sand core is improved by 1%.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.
Claims (4)
1. The utility model provides a preparation casting is with die-cutting instrument who hinders sand packing ring, its characterized in that, including outer cutter, interior cutter, stopper and spring, jump ring, outer cutter is the tube-shape, and the bottom edge of a knife is used for die-cut to hinder sand packing ring external profile, and the upper end of stopper sets up in outer cutter top, and its lower pot head is established in outer cutter, the stopper is inside to run through along the axial and be equipped with the ladder through-hole, interior cutter cover is established in the ladder hole of stopper, and outside its lower extreme extended the stopper, interior cutter bottom was equipped with the edge of a knife for die-cut hinders the inside shape of sand packing ring, the spring housing is established on interior cutter and is placed in the major diameter of stopper ladder through-hole in, and the jump ring joint is on interior cutter, and is spacing when being used for interior cutter return, guarantees that interior cutter does not deviate from the die-cutting instrument when the return.
2. The die-cutting tool for manufacturing the sand-blocking gasket for casting according to claim 1, wherein: the limiting block and the outer cutter are in transition fit, the limiting block and the outer cutter can be fixed and can be conveniently disassembled and assembled, and the inner cutter and the limiting block are in clearance fit, so that the inner cutter can move up and down in the limiting block.
3. The die-cutting tool for manufacturing the sand-blocking gasket for casting according to claim 1, wherein: the shape of the inner cutter edge is matched with the inner shape of the sand blocking gasket, the height of the inner cutter is larger than or equal to the height of the limiting block and the height of the outer cutter after assembly, the inner cutter and the outer cutter edge are made of alloy tool steel, and the hardness of the inner cutter and the outer cutter edge is larger than or equal to HRC 60.
4. The die-cutting tool for manufacturing the sand-blocking gasket for casting according to claim 1, wherein: the limiting block is made of 45 steel, the hardness is greater than or equal to HRC50, and the upper portion of the limiting block is guaranteed not to deform after being stamped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122853611.9U CN216127399U (en) | 2021-11-22 | 2021-11-22 | Die-cutting tool for manufacturing sand-resistant gasket for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122853611.9U CN216127399U (en) | 2021-11-22 | 2021-11-22 | Die-cutting tool for manufacturing sand-resistant gasket for casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216127399U true CN216127399U (en) | 2022-03-25 |
Family
ID=80779146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122853611.9U Active CN216127399U (en) | 2021-11-22 | 2021-11-22 | Die-cutting tool for manufacturing sand-resistant gasket for casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216127399U (en) |
-
2021
- 2021-11-22 CN CN202122853611.9U patent/CN216127399U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |