CN214557251U - Heat preservation end cap for centrifugal casting - Google Patents
Heat preservation end cap for centrifugal casting Download PDFInfo
- Publication number
- CN214557251U CN214557251U CN202120547509.3U CN202120547509U CN214557251U CN 214557251 U CN214557251 U CN 214557251U CN 202120547509 U CN202120547509 U CN 202120547509U CN 214557251 U CN214557251 U CN 214557251U
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- Prior art keywords
- plug
- connecting plate
- centrifugal casting
- plate
- metal mold
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- 238000009750 centrifugal casting Methods 0.000 title claims abstract description 28
- 238000004321 preservation Methods 0.000 title claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 14
- 238000005266 casting Methods 0.000 abstract description 8
- 229910052742 iron Inorganic materials 0.000 abstract description 7
- 238000007711 solidification Methods 0.000 abstract description 3
- 230000008023 solidification Effects 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of centrifugal casting, in particular to a heat preservation plug for centrifugal casting, a front end cover plate of a metal mold is provided with a pouring gate, a dynamic plug mechanism is arranged in front of the metal mold, the dynamic plug mechanism consists of a rotary plug, a reciprocating trolley, a push-pull cylinder and a fixed base, and the rotary plug is arranged on the fixed base in a way of moving back and forth through the reciprocating trolley; the rotary plug comprises a plug plate capable of opening or closing the pouring gate, a rotary shaft fixedly connected with the plug plate coaxially and a cylindrical mounting seat, the rotary shaft is rotatably arranged in the mounting seat in a penetrating mode, an annular groove is fixedly arranged on the cover plate coaxially, when the plug plate is rotated to plug the pouring gate, the plug plate is in friction contact with the annular groove in a matched mode, and the plug plate rotates circumferentially along with the metal mold; the plugging or releasing of a centrifugal casting metal mold pouring gate is realized, after molten iron is poured, the metal mold is sealed and insulated, a large temperature gradient is formed from the outer circle of a blank to an inner hole, a good sequential solidification condition is created, and the quality of a casting is improved.
Description
Technical Field
The utility model belongs to the technical field of centrifugal casting, in particular to centrifugal casting is with heat preservation end cap.
Background
In order to ensure that the inner circle surface does not have the defects of shrinkage cavity and shrinkage porosity after a cylinder sleeve product is processed into a finished cylinder sleeve from a blank casting, the centrifugal casting process adopted at present is a method for increasing the processing allowance of the inner circle of a blank, so that the defects of shrinkage cavity and shrinkage porosity are distributed in the processing allowance and are removed by machining, thus the weight of the blank and the workload of machining are increased, and the energy consumption and the cost of the comprehensive production of the cylinder sleeve are increased. In the existing cylinder sleeve centrifugal casting process, after molten iron is poured into a cylinder sleeve casting mold in a horizontal centrifugal casting furnace rotating at a high speed, heat preservation operation of manually plugging a front cover plug of the casting mold is also adopted, but the mode has the defects of troublesome operation, high danger, low mechanical property, short service life and the like of castings easily caused by shrinkage cavity, shrinkage porosity and the like.
SUMMERY OF THE UTILITY MODEL
In order to the above situation, the utility model provides a centrifugal casting is with heat preservation end cap, the molten iron pouring back, the stifled casting front shroud mouth that goes up, airtight heat preservation utilizes blank self waste heat, and the blank excircle forms great temperature gradient to the hole, creates better order solidification condition.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a heat-preservation plug for centrifugal casting comprises a metal mold of a centrifugal casting machine, wherein a cover plate is arranged at the front end of the metal mold, a pouring gate is arranged at the center of the cover plate, a dynamic plug mechanism is arranged in front of the metal mold, the dynamic plug mechanism consists of a rotary plug, a reciprocating trolley, a push-pull cylinder and a fixed base, and the rotary plug is arranged above the fixed base in a manner of moving back and forth through the reciprocating trolley;
the rotary plug comprises a plug plate capable of opening or closing the pouring gate, a rotating shaft fixedly connected with the plug plate coaxially and a cylindrical mounting seat, the rotating shaft is rotatably arranged in the mounting seat in a penetrating mode, an annular groove is fixedly arranged on the front surface of the cover plate coaxially, when the pouring gate is plugged by the rotary plug, the plug plate is in matched frictional contact with the annular groove, and the plug plate rotates circumferentially along with the metal mold;
the reciprocating trolley comprises a first connecting plate fixedly connected with the mounting seat, the first connecting plate is erected above a second connecting plate in a height-adjustable manner, a third connecting plate is arranged below the second connecting plate, a first linear guide rail is arranged above the third connecting plate, a first linear slider matched with the first linear guide rail is arranged on the lower side of the second connecting plate, a front baffle and a rear baffle for preventing the linear slider from derailing are arranged above the third connecting plate, an elastic buffer piece I is arranged between the front baffle and the front end of the second connecting plate, the third connecting plate is erected above a fourth connecting plate through the elastic buffer piece II, a second linear guide rail is arranged above the fixed base, a second linear slider matched with the second linear guide rail is arranged on the lower side of the fourth connecting plate, and a push-pull air cylinder is fixedly arranged in front of the fourth connecting plate above the fixed base, and a cylinder rod of the push-pull cylinder is connected with the front end of the fourth connecting plate.
Furthermore, the inner side of the annular groove is provided with a first guide slope, and the plug plate is provided with a second guide slope matched with the first guide slope, so that the plug plate can be smoothly inserted into the annular groove, the effective contact between the plug plate and the annular groove is ensured, and the friction force of a contact surface is increased.
Furthermore, the first connecting plate is erected above the second connecting plate through a plurality of bolts, the upper end of each bolt penetrates and extends to the upper side of the first connecting plate, two nuts are arranged on each bolt and are respectively arranged on the upper side and the lower side of the first connecting plate, and the height of the first connecting plate can be adjusted through the cooperation of the nuts.
Furthermore, the rotating shaft is rotatably arranged in the mounting seat in a penetrating mode through two bearings which are coaxially arranged, after molten iron is poured into the metal mold, when the dynamic plug mechanism plugs the metal mold pouring gate, the plug plate can rotate along with the rotation of the metal mold.
Further, elastic buffer spare one and elastic buffer spare two are compression spring, compression spring has stronger rigidity and elasticity, elastic buffer spare one mainly plays horizontal cushioning effect, elastic buffer spare two mainly plays vertical buffering cushioning effect, also plays certain horizontal cushioning effect simultaneously.
The utility model discloses still including other subassemblies that can make its normal use, be the conventional means in this field, in addition, the utility model discloses in add the device or the subassembly of injecing, for example: the centrifugal casting machine, the metal mold, the linear guide rail, the linear slide block, a control circuit and a gas circuit of the push-pull cylinder and the like all adopt the prior art in the field.
The utility model has the advantages as follows:
the utility model provides a heat preservation end cap for centrifugal casting can realize the shutoff or the release to the sprue gate of centrifugal casting metal mould through dynamic end cap mechanism, and it is rotatory that centrifugal casting metal mould can be followed to the end cap board, behind the pouring molten iron, to the airtight heat preservation of metal mould, utilize blank self waste heat, make blank excircle to the great temperature gradient of hole formation, create better order solidification condition, be favorable to improving the foundry goods quality, improve product life, and, sprue gate shutoff heat preservation operation is more simple and convenient, and is safer and more reliable.
Drawings
FIG. 1 is a schematic structural diagram of a thermal insulation plug for centrifugal casting in the embodiment.
Detailed Description
The technical solution of the present invention will be described more clearly and completely with reference to specific embodiments, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments.
It should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", and the like are based on the directions or positional relationships shown in the drawings, and are only for convenience of description.
Examples
As shown in fig. 1, a heat-insulating plug for centrifugal casting comprises a metal mold 2 of a centrifugal casting machine 1, wherein a cover plate 3 is arranged at the front end of the metal mold, a pouring gate 4 is arranged at the center part of the cover plate, a dynamic plug mechanism is arranged in front of the metal mold, the dynamic plug mechanism consists of a rotary plug, a reciprocating trolley, a push-pull cylinder 5 and a fixed base 6, and the rotary plug is arranged above the fixed base in a manner of moving back and forth through the reciprocating trolley;
the rotary plug comprises a plug plate 7 capable of opening or closing the pouring gate, a rotating shaft 8 coaxially and fixedly connected with the plug plate and a cylindrical mounting seat 9, the rotating shaft is rotatably arranged in the mounting seat in a penetrating mode, an annular groove 10 is coaxially and fixedly arranged on the front surface of the cover plate, when the rotary plug blocks the pouring gate, the plug plate is matched with the annular groove to be in friction contact, and the plug plate can circumferentially rotate along with the metal mold;
the reciprocating trolley comprises a first connecting plate 11 fixedly connected with the mounting seat, the first connecting plate is erected above a second connecting plate 12 in a height-adjustable manner, a third connecting plate 13 is arranged below the second connecting plate, a first linear guide rail 15 is arranged above the third connecting plate, a first linear slider 16 matched with the first linear guide rail is arranged on the lower side of the second connecting plate, a front baffle 17 and a rear baffle 18 for preventing the linear slider from derailing are arranged above the third connecting plate, an elastic buffer piece 19 is arranged between the front baffle and the front end of the second connecting plate, the third connecting plate is erected above a fourth connecting plate 14 through a second elastic buffer piece 20, a second linear guide rail 21 is arranged above the fixed base, a second linear slider 22 matched with the second linear guide rail is arranged on the lower side of the fourth connecting plate, and a push-pull cylinder is fixedly arranged in front of the fourth connecting plate above the fixed base, and a cylinder rod of the push-pull cylinder is connected with the front end of the fourth connecting plate.
The inner side of the annular groove is provided with a first guide slope surface 23, the plug plate is provided with a second guide slope surface 24 matched with the first guide slope surface, the plug plate can be smoothly inserted into the annular groove, effective contact between the plug plate and the annular groove is guaranteed, and friction force of a contact surface is increased.
The first connecting plate is erected above the second connecting plate through four bolts, the upper end of each bolt penetrates and extends to the upper side of the first connecting plate, two nuts 25 are arranged on each bolt, the two nuts are respectively arranged on the upper side and the lower side of the first connecting plate, and the height of the first connecting plate can be adjusted through the cooperation of the nuts.
The rotating shaft is rotatably arranged in the mounting seat in a penetrating mode through two bearings 26 which are coaxially arranged, and after molten iron is poured into the metal mold, when the metal mold pouring gate is plugged by the dynamic plugging mechanism, the plugging plate can rotate along with the rotation of the metal mold.
The first elastic buffer part and the second elastic buffer part are compression springs, the compression springs have strong rigidity and elasticity, the first elastic buffer part mainly plays a role in transverse buffering, and the second elastic buffer part mainly plays a role in longitudinal buffering and shock absorption and also plays a role in certain transverse buffering.
The utility model discloses an action principle as follows:
after molten iron is poured into a metal mold of the centrifugal casting machine, the push-pull air cylinder is operated and controlled to extend out, the reciprocating trolley is driven to push out, the plug plate of the rotary plug is driven to plug the pouring port of the cover plate and rotate along with high-speed rotation of the horizontal metal mold, the centrifugal casting heat preservation process is completed, the quality of a casting is improved, after the casting is shaped, the dynamic plug mechanism is controlled to retract, and subsequent demolding operation is not affected.
The technical solution of the present invention is not limited to the above-mentioned specific embodiments, and many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.
Claims (5)
1. The utility model provides a centrifugal casting is with heat preservation end cap, includes the metal mould of centrifugal casting machine, the front end of metal mould is provided with the apron, the central point of apron is provided with the sprue gate, its characterized in that: a dynamic plug mechanism is arranged in front of the metal mold, the dynamic plug mechanism consists of a rotary plug, a reciprocating trolley, a push-pull cylinder and a fixed base, and the rotary plug is arranged above the fixed base in a manner of moving back and forth through the reciprocating trolley;
the rotary plug comprises a plug plate capable of opening or closing the pouring gate, a rotating shaft fixedly connected with the plug plate coaxially and a cylindrical mounting seat, the rotating shaft is rotatably arranged in the mounting seat in a penetrating mode, an annular groove is fixedly arranged on the front surface of the cover plate coaxially, when the pouring gate is plugged by the rotary plug, the plug plate is in matched frictional contact with the annular groove, and the plug plate rotates circumferentially along with the metal mold;
the reciprocating trolley comprises a first connecting plate fixedly connected with the mounting seat, the first connecting plate is erected above a second connecting plate in a height-adjustable manner, a third connecting plate is arranged below the second connecting plate, a first linear guide rail is arranged above the third connecting plate, a first linear slider matched with the first linear guide rail is arranged on the lower side of the second connecting plate, a front baffle and a rear baffle for preventing the linear slider from derailing are arranged above the third connecting plate, an elastic buffer piece I is arranged between the front baffle and the front end of the second connecting plate, the third connecting plate is erected above a fourth connecting plate through the elastic buffer piece II, a second linear guide rail is arranged above the fixed base, a second linear slider matched with the second linear guide rail is arranged on the lower side of the fourth connecting plate, and a push-pull air cylinder is fixedly arranged in front of the fourth connecting plate above the fixed base, and a cylinder rod of the push-pull cylinder is connected with the front end of the fourth connecting plate.
2. The thermal insulation plug for centrifugal casting according to claim 1, wherein: the inner side of the annular groove is provided with a first guiding slope, and the plug board is provided with a second guiding slope matched with the first guiding slope.
3. The thermal insulation plug for centrifugal casting according to claim 1, wherein: the first connecting plate is erected above the second connecting plate through a plurality of bolts, the upper end of each bolt penetrates and extends to the upper portion of the first connecting plate, each bolt is provided with two nuts, the two nuts are respectively arranged on the upper side and the lower side of the first connecting plate, and the height of the first connecting plate can be adjusted through the cooperation of the nuts.
4. The thermal insulation plug for centrifugal casting according to claim 1, wherein: the rotating shaft is rotatably arranged in the mounting seat in a penetrating way through two bearings which are coaxially arranged.
5. The thermal insulation plug for centrifugal casting according to claim 1, wherein: the first elastic buffer part and the second elastic buffer part are both compression springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120547509.3U CN214557251U (en) | 2021-03-16 | 2021-03-16 | Heat preservation end cap for centrifugal casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120547509.3U CN214557251U (en) | 2021-03-16 | 2021-03-16 | Heat preservation end cap for centrifugal casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214557251U true CN214557251U (en) | 2021-11-02 |
Family
ID=78320282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120547509.3U Active CN214557251U (en) | 2021-03-16 | 2021-03-16 | Heat preservation end cap for centrifugal casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214557251U (en) |
-
2021
- 2021-03-16 CN CN202120547509.3U patent/CN214557251U/en active Active
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