CN114733999B - Bottom-pouring type wax pattern pouring system for large-scale wax pattern and investment casting mold - Google Patents
Bottom-pouring type wax pattern pouring system for large-scale wax pattern and investment casting mold Download PDFInfo
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- CN114733999B CN114733999B CN202210225732.5A CN202210225732A CN114733999B CN 114733999 B CN114733999 B CN 114733999B CN 202210225732 A CN202210225732 A CN 202210225732A CN 114733999 B CN114733999 B CN 114733999B
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- 238000005495 investment casting Methods 0.000 title claims abstract description 12
- 238000002347 injection Methods 0.000 claims abstract description 58
- 239000007924 injection Substances 0.000 claims abstract description 58
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 238000009826 distribution Methods 0.000 claims abstract description 6
- 238000005266 casting Methods 0.000 claims description 12
- 230000001050 lubricating effect Effects 0.000 claims description 10
- 238000005461 lubrication Methods 0.000 claims description 7
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 description 11
- 238000000926 separation method Methods 0.000 description 8
- 239000011159 matrix material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011031 large-scale manufacturing process 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
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention belongs to the field of mould design, and particularly relates to a bottom-pouring type wax mould pouring system and an investment casting mould for a large-scale wax mould, wherein the bottom-pouring type wax mould pouring system comprises a wax pouring disc, a vertical runner and a transverse pumping block with a horizontal runner, the wax pouring disc is arranged at the bottom of a lower mould, a split-flow cavity and a wax pouring port communicated with the split-flow cavity are arranged on the wax pouring disc, and the wax pouring port is suitable for being connected with a wax injection hose; the vertical pouring channel is arranged in the lower die and is suitable for communicating the bottom surface of the lower die with the die cavity; the transverse drawing block is slidably mounted on the bottom surface of the lower die, and the first end of the transverse drawing block is inserted into the wax injection disc, so that the transverse pouring channel is respectively communicated with the flow distribution cavity and the vertical pouring channel. Through the structure, the bottom-pouring type wax pattern pouring system for the large-scale wax pattern is formed, so that wax enters the mold from bottom to top and flows sequentially from bottom to top, thereby reducing flow mark defects on the surface of the wax pattern, improving the surface quality of the wax pattern, and simultaneously being convenient for separating the main wax pattern and the cross runner.
Description
Technical Field
The invention belongs to the field of mold design, and particularly relates to a bottom-pouring type wax pattern pouring system for a large-scale wax pattern and an investment casting mold comprising the bottom-pouring type wax pattern pouring system for the large-scale wax pattern.
Background
Investment casting is a near net shape forming process, and is a casting product manufactured through procedures such as wax pressing, shell manufacturing, pouring and the like. The investment casting can ensure higher dimensional accuracy and surface smoothness, and is suitable for casting various castings with complex structures.
In order to ensure the surface finish of the cast product, strict requirements should be imposed on the surface during the wax pattern stage of the initial process. Whether the surface of the wax mould meets the requirements mainly comprises whether the surface roughness meets the requirements, whether the wax mould has step difference mantles, whether the wax mould has sinkers, whether the wax mould has flow marks and the like. The main influencing factors of the surface roughness, the step difference and the drape are the processing precision and the matching precision of the die, and the corresponding requirements can be met by controlling the precision of the die. The collapse of the wax pattern is mainly caused by the locally thick and large areas of the wax pattern, which can be solved by designing a suitable cold wax. For flow marks on the surface of a wax mould, the influence factors are more, and one of the important factors is the filling direction of wax in the mould.
The conventional wax injection modes include side injection mode, top injection mode and bottom injection mode. The side-pouring type pouring system and the bottom-pouring type pouring system are generally arranged on the wax pressing machine, so that the pouring system is relatively simple, and because of the limitation of the size of the table top, the pouring system is mainly applicable to small-sized dies which can be carried out on the wax pressing machine, and is not applicable to large-sized dies with structures larger than the table top of the wax pressing machine; the top injection type is mainly realized by an external wax injection device, and a complex pouring system can be arranged, so that the top injection type device is mainly used for large-scale dies which cannot be pressed on a wax pressing machine. Although the top injection type wax injection mode is convenient to operate, the wax is easy to splash in the wax injection process, the wax flows freely from top to bottom in the die, is influenced by factors such as wall thickness structures, and is easy to cause turbulent flow, gas wrapping and the like, and surface flow marks are easy to cause.
Disclosure of Invention
The invention aims to provide a bottom-pouring type wax pattern pouring system for a large-scale wax pattern and an investment casting mold, so as to solve the problem that flow mark defects are easy to occur on the surface of the large-scale wax pattern poured by adopting a jacking mode in the prior art.
In one aspect, the present invention provides a bottom-pouring type wax pattern pouring system for a large wax pattern, comprising:
the wax injection disc is arranged at the bottom of the lower die, a split flow cavity and a wax injection port communicated with the split flow cavity are arranged on the wax injection disc, and the wax injection port is suitable for being connected with a wax injection hose;
the vertical pouring gate is arranged in the lower die and is suitable for communicating the bottom surface of the lower die with the die cavity;
the transverse drawing block is provided with a transverse pouring gate; the transverse drawing block is slidably mounted on the bottom surface of the lower die, and the first end of the transverse drawing block is inserted into the wax injection disc, so that the transverse pouring channel is respectively communicated with the flow distribution cavity and the vertical pouring channel.
As described above, in the bottom pouring type wax pattern pouring system for a large wax pattern, it is further preferable that the runner is a groove formed in an upper surface of the lateral drawing block, and one end of the groove extends to an end surface of the first end of the lateral drawing block, and is adapted to be respectively communicated with the split-flow cavity and the sprue.
As described above, in the bottom-injection type wax pattern casting system for a large-sized wax pattern, it is further preferable that the number of the lateral drawing blocks is plural, and the plural lateral drawing blocks are radially arranged on the outer periphery of the wax injection plate; and the cross runner of each transverse pumping block is connected with a plurality of vertical runners in an adaptive manner.
The bottom pouring type wax pattern pouring system for the large wax pattern further preferably further comprises a fixing frame fixedly connected to the bottom of the lower die, and the upper surface of the fixing frame is provided with a transverse sliding groove which is in sliding fit with the transverse drawing block.
As described above, in the bottom-injection type wax pattern casting system for a large-sized wax pattern, it is further preferable that the cross section of the lateral drawing block is circular; the bottom surface of the lower die is provided with a positioning groove, and the sections of the sliding groove and the positioning groove are arc-shaped and correspondingly spliced into a round shape matched with the transverse drawing block.
As described above, the bottom pouring type wax pattern pouring system for large wax patterns is further preferable that the fixing frame is provided with a locking block, the locking block is adapted to the transverse drawing block, and is suitable for compacting and controlling the transverse drawing block.
As described above, the bottom-pouring type wax pattern pouring system for a large-sized wax pattern is further preferably provided with a pull handle and a stopper block adapted to be positioned against the lower mold at the second end of the lateral pulling block.
In the bottom-injection type wax pattern casting system for a large-scale wax pattern as described above, it is further preferable that a lubrication layer is provided in the sprue, and an inner cavity of the lubrication layer is tapered with a large upper part and a small lower part.
As described above, the bottom-injection type wax pattern casting system for a large-scale wax pattern is further preferably such that the lubricating layer is a polytetrafluoroethylene lubricating layer.
On the other hand, the invention also provides an investment casting mold, which comprises the bottom-pouring type wax pattern pouring system for the large-scale wax pattern.
According to the bottom pouring type wax pattern pouring system for the large-scale wax pattern, the vertical pouring channel is arranged in the lower die, the wax injection disc and the transverse drawing block with the transverse pouring channel are arranged at the bottom of the lower die, and the transverse drawing block is respectively connected with the bottom surface of the lower die and the wax injection disc, so that the transverse pouring channel in the transverse drawing block is communicated with the split flow cavity and the vertical pouring channel in the wax injection disc, and then the complete bottom pouring type wax pattern pouring system for the large-scale wax pattern is formed, so that wax enters the die cavity of the die from bottom to top and flows sequentially from bottom to top, splashing and free flow of the wax are avoided, flow mark defects on the surface of the wax pattern are reduced, the surface quality of the wax pattern is improved, the problem that the follow-up wax pattern repairing amount is overlarge is solved, and mass production can be better met. Secondly, through the sliding adaptation of the transverse drawing block and the bottom surface of the lower die, the transverse drawing block can be slid to form shearing force after wax injection is completed so as to separate the transverse pouring gate from the vertical pouring gate, thereby realizing the separation and the taking out of the transverse pouring gate and the main wax mould without influencing the next wax pressing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a bottom-pouring type wax pattern casting system for a large-scale wax pattern in accordance with an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a portion of a casting system;
FIG. 3 is a schematic cross-sectional view of a runner.
Reference numerals illustrate:
the device comprises a lower die 1, a wax injection disc 2, a 3-split cavity, a 4-wax injection hose, a 5-transverse drawing block, a 6-transverse pouring gate, a 7-vertical pouring gate, an 8-fixing frame, a 9-locking block, a 10-stop block, an 11-handle, a 12-lubricating layer and a 13-locking bolt.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in the present invention will be understood in detail by those skilled in the art.
A bottom-pouring type wax pattern pouring system for a large-sized wax pattern in one embodiment of the present invention will be described with reference to fig. 1 to 3.
Referring to fig. 1-3, the bottom-pouring type wax pattern pouring system for a large-scale wax pattern in the present embodiment mainly comprises a wax-pouring tray 2, a sprue 7 and a lateral drawing block 5 having a sprue 6.
The wax injection plate 2 is arranged at the bottom of the lower die 1, and a split flow cavity 3 and a wax injection port communicated with the split flow cavity 3 are arranged on the wax injection plate 2, and the wax injection port is suitable for being connected with a wax injection hose 4;
the sprue 7 is arranged in the lower die 1 and is suitable for communicating the bottom surface of the lower die 1 with the die cavity;
the transverse drawing block 5 is slidably mounted on the bottom surface of the lower die 1, and a first end of the transverse drawing block is inserted into the wax injection disc 2, so that the transverse pouring gate 6 is respectively communicated with the diversion cavity 3 and the vertical pouring gate 7.
In this embodiment, the wax injection plate 2 may be designed in a disc shape, and is inserted into the center of the bottom surface of the lower mold 1 by screwing, welding or pressing. The inside of annotating wax dish 2 is formed with reposition of redundant personnel chamber 3, and the bottom surface is formed with the annotates the wax mouth with reposition of redundant personnel chamber 3 intercommunication, annotates the wax mouth and is suitable for being connected with external wax injection hose 4 to in wax material enters into reposition of redundant personnel chamber 3 through external wax injection hose 4, the lateral wall is formed with the spliced eye with reposition of redundant personnel chamber 3 intercommunication, specifically, the upper edge of spliced eye and the bottom surface parallel and level of lower mould 1 are suitable for being connected with the horizontal pull block 5 of slidable mounting in lower mould 1 bottom surface.
The sprue 7 is disposed in the lower die 1, specifically, a sprue hole penetrating through the lower die 1 to communicate the bottom surface of the lower die 1 with the die cavity, and is suitable for conveying the wax from the bottom to the die cavity to complete the injection of the wax. The sprue 7 is arranged in a variety of ways, preferably vertically, to facilitate separation of the wax pattern from the mold cavity.
The transverse drawing block 5 is long-strip-shaped, and is provided with a transverse runner 6 along the length direction. The transverse drawing block 5 is slidably mounted at the bottom of the lower die 1, the upper surface of the transverse drawing block is tightly attached to the bottom surface of the lower die 1, and the transverse drawing block is suitable for ensuring that the transverse pouring gate 6 is horizontally moved while being communicated with the vertical pouring gate 7, so that the transverse pouring gate 6 is separated from the vertical pouring gate 7 through shearing action, and the separation of the transverse pouring gate 6 and the wax die is realized. The first end of the transverse drawing block 5 is inserted into the insertion hole so that the transverse runner 6 is communicated with the diversion cavity 3.
In practical application, after the die assembly is completed, the transverse drawing block 5 is installed on the bottom surface of the lower die 1, the end part of the transverse drawing block is inserted into the flow distribution cavity 3 of the wax injection disc 2, the position of the transverse drawing block 5 is adjusted, the transverse pouring gate 6 is communicated with the vertical pouring gate 7 and the flow distribution cavity 3, and then the transverse drawing block 5 is fixed. Heating an external wax injection hose 4, a wax injection disc 2 and a transverse pumping block 5 to a set temperature to ensure the smooth communication of a wax injection channel; and after the wax injection is finished, the cross runner 6, the vertical runner 7 and the wax mould body are solidified and formed together, then the control of the transverse drawing block 5 is released, the transverse drawing block 5 is horizontally drawn, the cross runner 6 and the vertical runner 7 are manually cut off through shearing action, the cross runner 6 is separated, and the vertical runner 7 and the wax mould body are ejected together.
Therefore, the bottom pouring type wax pattern pouring system for the large-scale wax pattern in the embodiment is characterized in that the vertical pouring gate 7 is arranged in the lower die 1, the wax injection disc 2 and the transverse drawing block 5 with the transverse pouring gate 6 are arranged at the bottom of the lower die 1, and the transverse drawing block 5 is respectively connected with the bottom surface of the lower die 1 and the wax injection disc 2, so that the transverse pouring gate 6 in the transverse drawing block 5 is communicated with the split flow cavity 3 and the vertical pouring gate 7 in the wax injection disc 2, and then the complete bottom pouring type wax pattern pouring system for the large-scale wax pattern is formed, so that the wax enters the die cavity of the die from bottom to top and flows sequentially from bottom to top, splashing and free flow of the wax are avoided, flow mark defects on the surface of the wax pattern are reduced, the surface quality of the wax pattern is improved, the problem that the subsequent wax pattern is excessively large in repairing amount is solved, and the large-scale production can be better satisfied. Secondly, through the sliding adaptation of the transverse drawing block 5 and the bottom surface of the lower die 1, the transverse drawing block 5 can be slid to form shearing force to separate the transverse pouring gate 6 from the vertical pouring gate 7 after wax injection is completed, so that the separation and the taking out of the transverse pouring gate 6 and the main wax die are realized, and the next wax pressing operation is not affected.
Further, the cross runner 6 is a groove formed on the upper surface of the transverse drawing block 5, and one end of the groove extends to the end surface of the first end of the transverse drawing block 5 and is suitable for being communicated with the diversion cavity 3 and the vertical runner 7 respectively.
Specifically, the groove is arranged on the upper surface of the transverse drawing block 5, and is directly contacted with the bottom surface of the upper die when the transverse drawing block 5 is correspondingly arranged with the bottom of the upper die to form a wax channel with one end sealed, and the bottom surface of the upper die forms part of the side wall of the wax channel, so that the wax channel is conveniently aligned with a sprue 7 arranged in the upper die; the other end of the groove extends to the end face of the first end of the transverse drawing block 5 and is suitable for enabling the wax channel to be directly connected with the flow distribution cavity 3.
Further, the number of the transverse drawing blocks 5 is multiple, and the transverse drawing blocks 5 are arranged on the periphery of the wax injection plate 2 in a radioactive manner; the runner 6 of each transverse drawer block 5 is adapted to be connected with a plurality of sprue 7.
Through setting up a plurality of horizontal drawing pieces 5 that are connected with annotate wax dish 2 and making the cross gate 6 in the same horizontal drawing piece 5 be connected with a plurality of vertical runner 7, be convenient for design complex gating system to deal with the complex structure of large-scale mould. The number of the transverse pumping blocks 5 and the number of the sprue 7 can be set arbitrarily, and preferably, in this embodiment, the wax injection tray 2 is connected with 12 transverse pumping blocks 5, the 12 transverse pumping blocks 5 are uniformly arranged in the axial direction of the wax injection tray 2, each transverse pumping block 5 is connected with two sprue 7, and the two sprue 7 are uniformly arranged along the length direction of the transverse pumping blocks 5.
Further, the device also comprises a fixing frame 8, wherein the fixing frame 8 is fixedly connected to the bottom of the lower die 1, a transverse sliding groove is formed in the upper surface of the fixing frame, and the sliding groove is in sliding fit with the transverse drawing block 5. Specifically, the fixing frame 8 is fixedly connected to the bottom of the lower die 1 through a locking bolt 13, and the upper surface of the fixing frame is matched with a sliding groove of the transverse drawing block 5, so that the transverse drawing block 5 and the bottom surface of the lower die 1 are slidably mounted.
Further, the cross section of the transverse drawing block 5 is circular; the bottom surface of the lower die 1 is provided with a positioning groove, and the sliding groove and the section of the positioning groove are correspondingly spliced into a round shape matched with the transverse drawing block 5. Specifically, the cross section of the positioning groove is in a minor arc shape, and the end part of the sprue 7 is positioned in the positioning groove. The section shape of the chute is a major arc, and the chute and the positioning groove are spliced to form a circle. The cross section of the transverse drawing block 5 is circular, is directly basically consistent with the diameters of the positioning groove and the sliding groove, is suitable for being inserted into the sliding groove and the positioning groove in an adapting mode, and the width of the groove of the constant pouring channel is smaller than that of the positioning groove, so that the groove is adapted to the positioning groove.
Further, a locking block 9 is arranged on the fixing frame 8, and the locking block 9 is matched with the transverse drawing block 5 and is suitable for pressing the transverse drawing block 5. Specifically, a vertical through hole is formed in the fixing frame 8, and the locking block 9 is installed in the through hole and is suitable for upwards pressing the transverse drawing block 5 so as to prevent the transverse drawing block 5 from sliding outwards due to the pressure of wax in the wax injection disc 2. Further, the locking block 9 is a pneumatic locking block 9, and the pressing and releasing of the transverse drawing block 5 are realized through pneumatic control. Preferably, the transverse drawing block 5 is provided with a limit groove matched with the locking block 9 so as to enable the locking block 9 to be inserted and locked.
Further, the second end of the lateral extraction block 5 is provided with a pull handle 11 and a stop block 10 suitable for stopping and positioning with the lower die 1. Specifically, the handle 11 is vertically disposed at an end of the lateral drawing block 5, so as to facilitate the operation of the lateral drawing block 5. The stop block 10 is arranged on the upper surface of the transverse drawing block 5 and is positioned with the edge stop of the lower die 1, and is suitable for warning the insertion depth and the insertion angle of the transverse drawing block 5, so that the adjustment is convenient in time.
Further, a lubrication layer 12 is arranged in the sprue 7, and the inner cavity of the lubrication layer 12 is conical with a large upper part and a small lower part. Preferably, the lubricating layer 12 is a polytetrafluoroethylene lubricating layer 12. Through setting up the lubricating layer 12 that has the toper inner chamber of big-end-up, utilize the lubrication characteristic of lubricating layer 12 to make things convenient for the separation of wax matrix body and lubricating layer 12 on the one hand, and then the separation of wax matrix body and lower mould 1 of being convenient for still is convenient for simultaneously big-end-up's shape characteristic, is convenient for take out lubricating layer 12 from perpendicular runner 7 before separation wax matrix body and lower mould 1, and then the separation of being convenient for wax matrix body and lower mould 1.
The invention also provides an investment casting mold, which comprises the bottom-pouring type wax pattern pouring system for the large-scale wax pattern in the embodiment. Because the investment casting mold in the embodiment adopts all the technical schemes of the embodiment, the investment casting mold at least has all the beneficial effects brought by the technical schemes of the embodiment, and the description is omitted herein.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (9)
1. A bottom-pouring type wax pattern casting system for a large wax pattern, comprising:
the wax injection disc is arranged at the bottom of the lower die, a split flow cavity and a wax injection port communicated with the split flow cavity are arranged on the wax injection disc, and the wax injection port is suitable for being connected with a wax injection hose;
the vertical pouring gate is arranged in the lower die and is suitable for communicating the bottom surface of the lower die with the die cavity;
the transverse drawing block is provided with a transverse pouring gate; the transverse drawing block is slidably arranged on the bottom surface of the lower die, and the first end of the transverse drawing block is inserted into the wax injection disc, so that the transverse pouring channel is respectively communicated with the flow distribution cavity and the vertical pouring channel;
the transverse runner is a groove formed in the upper surface of the transverse drawing block, and one end of the groove extends to the end face of the first end of the transverse drawing block.
2. The bottom-pouring type wax pattern pouring system for a large-scale wax pattern according to claim 1, wherein the number of the transverse drawing blocks is plural, and the plural transverse drawing blocks are radially arranged on the periphery of the wax-pouring tray; and the cross runner of each transverse pumping block is connected with a plurality of vertical runners in an adaptive manner.
3. The bottom-pouring type wax pattern pouring system for a large-scale wax pattern according to claim 1, wherein,
the lower die is characterized by further comprising a fixing frame, wherein the fixing frame is fixedly connected to the bottom of the lower die, a transverse sliding groove is formed in the upper surface of the fixing frame, and the sliding groove is in sliding fit with the transverse drawing block.
4. A bottom-pouring type wax pattern pouring system for a large wax pattern as in claim 3, wherein the cross section of the transverse drawer block is circular; the bottom surface of the lower die is provided with a positioning groove, and the sections of the sliding groove and the positioning groove are arc-shaped and correspondingly spliced into a round shape matched with the transverse drawing block.
5. A bottom pouring type wax pattern pouring system for large wax patterns according to claim 3, wherein a locking block is arranged on the fixing frame, and is adapted to the transverse drawing block and is suitable for compressing and controlling the transverse drawing block.
6. A bottom-pouring type wax pattern pouring system for a large wax pattern as in claim 3, wherein the second end of the lateral withdrawal block is provided with a pull tab and a stop block adapted to be positioned against the lower mold.
7. The bottom pouring type wax pattern pouring system for a large wax pattern according to any one of claims 1 to 6, wherein a lubricating layer is arranged in the sprue, and an inner cavity of the lubricating layer is conical with a large upper part and a small lower part.
8. The bottom-pouring type wax pattern casting system for large wax patterns according to claim 7, wherein the lubrication layer is a polytetrafluoroethylene lubrication layer.
9. An investment casting mold comprising a bottom-pouring wax pattern casting system for a large wax pattern as in any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210225732.5A CN114733999B (en) | 2022-03-07 | 2022-03-07 | Bottom-pouring type wax pattern pouring system for large-scale wax pattern and investment casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210225732.5A CN114733999B (en) | 2022-03-07 | 2022-03-07 | Bottom-pouring type wax pattern pouring system for large-scale wax pattern and investment casting mold |
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| Publication Number | Publication Date |
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| CN114733999A CN114733999A (en) | 2022-07-12 |
| CN114733999B true CN114733999B (en) | 2023-12-15 |
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| CN202210225732.5A Active CN114733999B (en) | 2022-03-07 | 2022-03-07 | Bottom-pouring type wax pattern pouring system for large-scale wax pattern and investment casting mold |
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| CN116000240B (en) * | 2023-03-28 | 2023-06-09 | 河北钢研德凯科技有限公司 | Wax mould is watered to ring |
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