CN114733999A - Bottom pouring type wax mold pouring system for large-scale wax mold and investment casting mold - Google Patents
Bottom pouring type wax mold pouring system for large-scale wax mold and investment casting mold Download PDFInfo
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- CN114733999A CN114733999A CN202210225732.5A CN202210225732A CN114733999A CN 114733999 A CN114733999 A CN 114733999A CN 202210225732 A CN202210225732 A CN 202210225732A CN 114733999 A CN114733999 A CN 114733999A
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- 238000005495 investment casting Methods 0.000 title claims abstract description 11
- 238000002347 injection Methods 0.000 claims abstract description 68
- 239000007924 injection Substances 0.000 claims abstract description 68
- 238000005086 pumping Methods 0.000 claims abstract description 47
- 230000001050 lubricating effect Effects 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 11
- 230000003044 adaptive effect Effects 0.000 claims description 5
- 239000000314 lubricant Substances 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 12
- 230000007547 defect Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 8
- 238000005266 casting Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000000926 separation 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
- 230000009471 action Effects 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010438 heat treatment Methods 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
- 238000012545 processing Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
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- 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)
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- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention belongs to the field of mold design, and particularly relates to a bottom injection type wax mold pouring system for a large wax mold and a investment casting mold, wherein the bottom injection type wax mold pouring system comprises a wax injection disc, a vertical pouring gate and a transverse pumping block with a transverse pouring gate, the wax injection disc is arranged at the bottom of a lower mold, a shunting cavity and a wax injection port communicated with the shunting 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 pumping block is slidably mounted on the bottom surface of the lower die, and the first end of the transverse pumping block is connected with the wax injection disc in an inserting mode, so that the transverse pouring gate is communicated with the branch cavity and the vertical pouring gate respectively. The bottom-pouring type wax mold pouring system for the large wax mold is formed through the structure, so that wax materials enter the mold from bottom to top and flow sequentially from bottom to top, the flow mark defects on the surface of the wax mold are reduced, the surface quality of the wax mold is improved, and the main body wax mold and the cross gate are convenient to separate.
Description
Technical Field
The invention belongs to the field of mold design, and particularly relates to a bottom-pouring type wax mold pouring system for a large-scale wax mold and an investment casting mold comprising the bottom-pouring type wax mold pouring system for the large-scale wax mold.
Background
Investment casting is a near-net-shape forming process, and is a casting product manufactured by the processes of 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 requirement of the casting product, the surface is required to be strict in the initial process wax mold stage. Whether the surface of the wax mould meets the requirements or not mainly comprises whether the surface roughness meets the requirements or not, whether a step fash exists or not, whether sink marks exist or not, whether flow marks exist or not and the like. The main influencing factors of the surface roughness, the step difference and the fash 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 shrinkage of the wax pattern is mainly caused by local thick and large areas of the wax pattern, and can be solved by designing proper cold wax. The flow marks on the surface of the wax mould are influenced by a plurality of factors, wherein one important factor is the filling direction of the wax material in the mould.
The currently used wax injection modes include a side injection mode, a top injection mode and a bottom injection mode. The side-pouring type and bottom-pouring type pouring systems are generally arranged on the wax-pressing machine, so that the pouring systems are relatively simple, and are mainly suitable for small molds which can be carried out on the wax-pressing machine due to the limitation of the size of a table top and are not suitable for forming large molds with larger structures than the table top of the wax-pressing machine; the top pouring type is mainly realized by an external wax injection device, and a complex pouring system can be arranged, so that the top pouring type is mainly used for large-scale moulds which cannot be pressed on a wax pressing machine. Although the top-injection type wax injection mode is convenient to operate, wax materials are easy to splash in the wax injection process, the wax materials freely flow from top to bottom in the die, are influenced by factors such as a wall thickness structure and the like, are easy to cause turbulent flow and air entrainment, and are easy to cause surface flow marks.
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, and aims to solve the problem that the surface of the large-scale wax pattern adopting propping type pouring in the prior art is easy to have flow mark defects.
In one aspect, the present invention provides a bottom-pouring wax pattern gating system for a large wax pattern, comprising:
the wax injection disc is arranged at the bottom of the lower die, a shunting cavity and a wax injection port communicated with the shunting cavity are formed in 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 channel; the transverse pumping block is slidably mounted on the bottom surface of the lower die, and the first end of the transverse pumping block is connected with the wax injection disc in an inserting mode, so that the transverse pouring gate is communicated with the branch cavity and the vertical pouring gate respectively.
In the bottom pouring type wax pattern gating system for a large-sized wax pattern, it is further preferable that the horizontal runner is a groove formed in the upper surface of the transverse pumping block, and one end of the groove extends to the end surface of the first end of the transverse pumping block and is adapted to be communicated with the branch cavity and the vertical runner respectively.
In the bottom pouring type wax mold gating system for a large-sized wax mold, preferably, the number of the transverse pumping blocks is multiple, and the plurality of transverse pumping blocks are radially arranged on the periphery of the wax injection tray; and the cross pouring channel of each transverse pumping block is in adaptive connection with the plurality of vertical pouring channels.
The bottom pouring type wax mold pouring system for the large-scale wax mold further preferably comprises a fixing frame, wherein the fixing frame is fixedly connected to the bottom of the lower mold, 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 pulling block.
In the bottom-pouring type wax pattern gating system for a large-sized wax pattern, it is further preferable that the cross section of the transverse pumping block is circular; the bottom surface of the lower die is provided with a positioning groove, the cross sections of the sliding groove and the positioning groove are arc-shaped, and the sliding groove and the positioning groove are correspondingly spliced into a circle matched with the transverse pumping block.
The bottom pouring type wax mold gating system for the large wax mold is further preferably characterized in that the fixing frame is provided with a locking block, and the locking block is matched with the transverse pulling block and is suitable for controlling the transverse pulling block in a pressing mode.
In the bottom-pouring type wax pattern gating system for the large-sized wax pattern, it is further preferable that the second end of the transverse pulling block is provided with a handle and a stop block which is suitable for being positioned in a stop way with the lower die.
In the bottom pouring type wax mold gating system for a large wax mold, it is further preferable that a lubricating layer is arranged in the vertical pouring channel, and an inner cavity of the lubricating layer is tapered with a large top and a small bottom.
In the bottom-pouring type wax pattern gating system for a large-sized wax pattern as described above, it is further preferable that the lubricating layer is a polytetrafluoroethylene lubricating layer.
In another aspect, the present invention provides an investment casting mold comprising the bottom-injection wax pattern gating system for large wax patterns as described in any one of the above.
According to the bottom injection type wax mold pouring system for the large-scale wax mold, the vertical pouring gate is arranged in the lower mold, the wax injection plate and the transverse pumping block with the transverse pouring gate are arranged at the bottom of the lower mold, and the transverse pumping block is respectively connected with the bottom surface of the lower mold and the wax injection plate, so that the transverse pouring gate in the transverse pumping block is communicated with the branch cavity and the vertical pouring gate in the wax injection plate, and further, the complete bottom injection type wax mold pouring system for the large-scale wax mold is formed, wax materials enter the mold cavity of the mold from bottom to top and flow from bottom to top in sequence, splashing and free flow of the wax materials are avoided, the flow mark defect on the surface of the wax mold is reduced, the surface quality of the wax mold is improved, the problem that the follow-up wax mold repair amount is overlarge is solved, and large-scale production can be better met. Secondly, the transverse drawing block is matched with the bottom surface of the lower die in a sliding mode, so that the transverse pouring gate and the vertical pouring gate can be separated by forming shearing force through sliding the transverse drawing block after wax injection is finished, the transverse pouring gate and the main wax die can be separated and taken out, and the wax pressing use in the next time is not influenced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic perspective view of a bottom-pouring wax pattern gating system for large wax patterns according to one embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a portion of the gating system;
FIG. 3 is a schematic cross-sectional view of a runner.
Description of reference numerals:
1-lower die, 2-wax injection disc, 3-shunt cavity, 4-wax injection hose, 5-transverse pumping block, 6-transverse pouring channel, 7-vertical pouring channel, 8-fixing frame, 9-locking block, 10-stop block, 11-handle, 12-lubricating layer and 13-locking bolt.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular 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 otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the terms in the present invention can be understood in a specific case to those skilled in the art.
A bottom-pouring wax pattern gating system for large wax patterns in accordance with one embodiment of the present invention is described below with reference to fig. 1-3.
Referring to fig. 1-3, the bottom-pouring wax pattern gating system for large wax patterns in this embodiment generally includes a wax-pouring tray 2, a vertical runner 7, and a lateral drawer 5 having a lateral runner 6.
The wax injection plate 2 is arranged at the bottom of the lower die 1, a shunting cavity 3 and a wax injection port communicated with the shunting 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 vertical pouring gate 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 pumping block 5 is slidably mounted on the bottom surface of the lower die 1, and the first end of the transverse pumping block is inserted into the wax injection disc 2, so that the transverse pouring gate 6 is communicated with the flow distribution cavity 3 and the vertical pouring gate 7 respectively.
In this embodiment, the wax injection plate 2 may be designed to be a disc shape and embedded in the center of the bottom surface of the lower mold 1 by screwing, welding or pressing. The inside of wax injection dish 2 is formed with reposition of redundant personnel chamber 3, and the bottom surface is formed with the wax injection mouth with reposition of redundant personnel chamber 3 intercommunication, and the wax injection mouth is suitable for and externally penetrates wax hose 4 and is connected to in wax material enters into reposition of redundant personnel chamber 3 through externally penetrating wax hose 4, the lateral wall is formed with the spliced eye with reposition of redundant personnel chamber 3 intercommunication, and is concrete, the last edge of spliced eye is along the bottom surface parallel and level with lower mould 1, in order to be suitable for and transversely take out the piece 5 with slidable mounting in lower mould 1 bottom surface and be connected.
The vertical pouring gate 7 is arranged in the lower die 1, specifically, a pouring gate hole penetrating through the lower die 1 so as to communicate the bottom surface of the lower die 1 with the die cavity, and is suitable for conveying wax materials from the bottom to the die cavity to finish the injection of the wax materials. The vertical pouring channel 7 is arranged in various ways, preferably vertically in order to facilitate the separation of the wax pattern from the mould cavity.
The transverse drawing block 5 is in a long strip shape, and a transverse pouring channel 6 is arranged on the transverse drawing block 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 communicated with the vertical pouring gate 7, enabling the transverse pouring gate 6 to have horizontal movement capability and further being separated from the vertical pouring gate 7 through shearing action, so that the transverse pouring gate 6 is separated from the wax mold. The first end of the transverse pumping block 5 is inserted into the insertion hole, so that the cross gate 6 is communicated with the flow distribution cavity 3.
In practical application, after the die is assembled, the transverse pumping block 5 is installed on the bottom surface of the lower die 1, the end part of the transverse pumping block is inserted into the shunting cavity 3 of the wax injection disc 2, the position of the transverse pumping block 5 is adjusted, the transverse pouring gate 6 is communicated with the vertical pouring gate 7 and the shunting cavity 3, and then the transverse pumping 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 smoothness of a wax injection channel; and (3) starting wax injection, after the wax injection is finished, solidifying and forming the horizontal pouring channel 6 and the vertical pouring channel 7 together with the wax mould body, then releasing the control on the horizontal drawing block 5, horizontally drawing the horizontal drawing block 5, manually cutting off the horizontal pouring channel 6 and the vertical pouring channel 7 through shearing action, separating the horizontal pouring channel 6, and enabling the vertical pouring channel 7 and the wax mould body to be discharged from the mould together.
Therefore, in the bottom pouring type wax mold pouring system for the large-scale wax mold in the embodiment, the vertical pouring gate 7 is arranged in the lower mold 1, the wax injection tray 2 and the transverse pumping block 5 with the transverse pouring gate 6 are arranged at the bottom of the lower mold 1, and the transverse pumping block 5 is respectively connected with the bottom surface of the lower mold 1 and the wax injection tray 2, so that the transverse pouring gate 6 in the transverse pumping block 5 is communicated with the flow distribution cavity 3 and the vertical pouring gate 7 in the wax injection tray 2, and then the complete bottom pouring type wax mold pouring system for the large-scale wax mold is formed, so that wax materials enter the mold cavity of the mold from bottom to top and flow from bottom to top sequentially, splashing and free flowing of the wax materials are avoided, thereby the flow mark defect on the surface of the wax mold is reduced, the surface quality of the wax mold is improved, the problem of overlarge wax repairing amount of the subsequent wax mold is solved, and 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 slide to form shearing force to separate the transverse pouring gate 6 from the vertical pouring gate 7 after wax injection is finished, so that the transverse pouring gate 6 and the main body wax die can be separated and taken out, and the next wax pressing use is not influenced.
Furthermore, the horizontal runner 6 is a groove formed in the upper surface of the transverse pumping block 5, and one end of the groove extends to the end face of the first end of the transverse pumping block 5 and is suitable for being communicated with the flow distribution 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 to form a wax channel with one end sealed when the transverse drawing block 5 is correspondingly installed with the bottom of the upper die, 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 vertical pouring channel 7 arranged in the upper die; the other end of the groove extends to the end face of the first end of the transverse pumping block 5 and is suitable for directly connecting the wax channel with the shunting cavity 3.
Furthermore, the number of the transverse drawing blocks 5 is multiple, and the plurality of transverse drawing blocks 5 are arranged on the periphery of the wax injection disc 2 in a radioactive mode; the horizontal pouring channel 6 of each transverse pumping block 5 is connected with a plurality of vertical pouring channels 7 in an adaptive mode.
By arranging a plurality of transverse pumping blocks 5 connected with the wax injection disc 2 and connecting transverse runners 6 in the same transverse pumping block 5 with a plurality of vertical runners 7, a complex gating system is convenient to design so as to deal with the complex structure of a large-scale mold. The number of the transverse pumping blocks 5 and the number of the vertical runners 7 can be set at will, preferably, in the embodiment, the wax injection disc 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 disc 2, each transverse pumping block 5 is connected with two vertical runners 7, and the two vertical runners 7 are uniformly arranged along the length direction of the transverse pumping block 5.
Further, still include mount 8, mount 8 rigid coupling in the bottom of lower mould 1, and the upper surface is equipped with horizontal spout, and the spout is with transversely taking out piece 5 sliding fit. 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 the sliding groove of the transverse pulling block 5, so that the transverse pulling block 5 is slidably mounted on the bottom surface of the lower die 1.
Further, the cross section of the transverse pulling block 5 is circular; the bottom surface of the lower die 1 is provided with a positioning groove, and the sliding groove and the cross section of the positioning groove are correspondingly spliced into a round shape matched with the transverse pulling block 5. Specifically, the sectional shape of the positioning groove is a minor arc, and the end part of the vertical pouring channel 7 is positioned in the positioning groove. The cross section of the sliding chute is a major arc and is spliced with the positioning groove to form a circle. The cross section of the transverse pumping 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 adaptive 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 adaptive to the positioning groove.
Furthermore, 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, the fixing frame 8 is provided with a vertical through hole, and the locking block 9 is installed in the through hole and is suitable for upwards compressing the transverse pumping block 5 so as to prevent the transverse pumping block 5 from sliding outwards due to the pressure of wax materials in the wax injection disc 2. Further, the locking block 9 is a pneumatic locking block 9, and the lateral pulling block 5 is compressed and released through pneumatic control. Preferably, the transverse pulling block 5 is provided with a limit groove matched with the locking block 9, so that the locking block 9 is inserted and locked.
Further, the second end of the transverse pulling block 5 is provided with a handle 11 and a stop block 10 which is suitable for stopping and positioning with the lower die 1. Specifically, the handle 11 is vertically disposed at an end of the transverse pulling block 5, so as to facilitate the operation of the transverse pulling block 5. The stop block 10 is arranged on the upper surface of the transverse pulling block 5, is positioned by stopping with the edge of the lower die 1, is suitable for warning the insertion depth and the insertion angle of the transverse pulling block 5 and is convenient for timely adjustment.
Further, a lubricating layer 12 is arranged in the vertical pouring channel 7, and an inner cavity of the lubricating layer 12 is in a conical shape with a large upper part and a small lower part. Preferably, the lubricant layer 12 is a polytetrafluoroethylene lubricant layer 12. Through setting up the lubricating layer 12 that has big-end-up's toper inner chamber, utilize the lubricated 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 the wax matrix body of being convenient for and lower mould 1, the shape characteristic of big-end-up of still being convenient for simultaneously is convenient for before separation wax matrix body and lower mould 1, takes out lubricating layer 12 from watering 7 perpendicularly, and then is convenient for separate wax matrix body and lower mould 1.
The invention also provides an investment casting mould which comprises the bottom pouring type wax pattern pouring system for the large-scale wax pattern in the embodiment. Since the investment casting mold in this embodiment adopts all the technical solutions of the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and details are not repeated here.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A bottom-pouring wax pattern gating system for large wax patterns, comprising:
the wax injection disc is arranged at the bottom of the lower die, a shunting cavity and a wax injection port communicated with the shunting cavity are formed in 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 channel; the transverse pumping block is slidably mounted on the bottom surface of the lower die, and the first end of the transverse pumping block is connected with the wax injection disc in an inserting mode, so that the transverse pouring gate is communicated with the branch cavity and the vertical pouring gate respectively.
2. The bottom-pouring wax pattern gating system for large wax patterns according to claim 1, wherein the cross gate is a groove formed in an upper surface of the lateral pulling block, and one end of the groove extends to an end surface of the first end of the lateral pulling block.
3. The bottom-pouring type wax pattern gating system for the large-sized wax pattern according to claim 1, wherein the number of the transverse pumping blocks is multiple, and the plurality of the transverse pumping blocks are radially arranged on the periphery of the wax-pouring tray; and the cross pouring channel of each transverse pumping block is in adaptive connection with the plurality of vertical pouring channels.
4. The bottom-injection wax pattern gating system for large wax patterns according to claim 1,
the upper 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 pulling block.
5. The bottom-pouring wax pattern gating system for large wax patterns according to claim 4, wherein the cross-section of the lateral pull block is circular; the bottom surface of the lower die is provided with a positioning groove, the cross sections of the sliding groove and the positioning groove are arc-shaped, and the sliding groove and the positioning groove are correspondingly spliced into a circle matched with the transverse pumping block.
6. The bottom-pouring type wax pattern gating system for the large-sized wax pattern according to claim 4, wherein a locking block is arranged on the fixing frame, is matched with the transverse pulling block, and is suitable for controlling the transverse pulling block in a pressing mode.
7. The bottom-injection wax pattern gating system for large wax patterns according to claim 4, wherein the second end of the lateral pull block is provided with a pull handle and a stop block adapted to stop the lower mold.
8. The bottom-pouring wax pattern gating system according to any one of claims 1 to 7, wherein the vertical pouring channel is provided with a lubricating layer, and the inner cavity of the lubricating layer is tapered with a large top and a small bottom.
9. The bottom-pouring wax pattern gating system for large wax patterns according to claim 8, wherein the lubricant layer is a polytetrafluoroethylene lubricant layer.
10. An investment casting mould comprising the bottom-injection wax pattern gating system for large wax patterns according to any of claims 1 to 9.
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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| CN114733999A true CN114733999A (en) | 2022-07-12 |
| CN114733999B CN114733999B (en) | 2023-12-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116000240A (en) * | 2023-03-28 | 2023-04-25 | 河北钢研德凯科技有限公司 | Wax mould is watered to ring |
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| CN116000240A (en) * | 2023-03-28 | 2023-04-25 | 河北钢研德凯科技有限公司 | Wax mould is watered to ring |
| 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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