CN211386803U - Dedicated core molding frock of screw oar cap casting - Google Patents
Dedicated core molding frock of screw oar cap casting Download PDFInfo
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- CN211386803U CN211386803U CN201922449709.0U CN201922449709U CN211386803U CN 211386803 U CN211386803 U CN 211386803U CN 201922449709 U CN201922449709 U CN 201922449709U CN 211386803 U CN211386803 U CN 211386803U
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Abstract
The utility model discloses dedicated core of screw oar cap casting frock of modelling relates to metal casting trade technical field, especially relates to screw oar cap casting is with the moulding frock of taking upset core. The shaft lever of the utility model is vertically inserted into the shaft lever hole on the bottom plate; the sand box is placed on the bottom plate, and the shaft lever is positioned at the center of the sand box; the hollow core bar is inversely assembled on the shaft lever, and the top surface of the hollow core bar faces downwards and is tightly attached to the top surface of the bottom plate; the scraper is sleeved on the upper part of the shaft lever and can rotate around the shaft lever. The hollow core comprises: the device comprises a flange plate, a coaming, a box turning sleeve and a bottom leather; the coaming is a cylindrical structure with a certain height; the top of the coaming is welded with a flange; the bottom of the coaming and the bottom skin are welded together in the same diameter; and two box turning sleeves are symmetrically and horizontally welded at the lower part of the coaming. The technical scheme of the utility model the molding inefficiency among the prior art, the molding sand use amount is big, the gas permeability is poor, the size is thick big to the dry by the fire very unfavorable scheduling problem of sand mould thoroughly.
Description
Technical Field
The utility model discloses dedicated core of screw oar cap casting frock of modelling relates to metal casting trade technical field, especially relates to screw oar cap casting is with the moulding frock of taking upset core.
Background
At present, the propeller cap casting molding loam core bone adopts whole welded supporting structure, and not only the commonality is relatively poor, adopts the whole system of pounding of molding sand moreover, leads to molding inefficiency like this on the one hand, and the use amount of on the other hand molding sand is great.
As the core of the paddle cap product, after casting, in the process of casting solidification, only the upper part is communicated with the atmosphere, and the air permeability is worse when the core is made by sand pounding. In addition, the mold drying effect of the mold core also has great influence on the quality of the casting, the large size is obviously very bad for completely drying the mold core,
aiming at the problems in the prior art, a novel special core modeling tool for casting the propeller cap is researched and designed, so that the problem in the prior art is very necessary to be overcome.
Disclosure of Invention
According to the technical problems of low molding efficiency, large usage amount of molding sand, poor air permeability, large size, great difficulty in drying through a sand mold and the like in the prior art, the special core molding tool for casting the propeller cap is provided. The utility model discloses mainly utilize at the prefabricated cavity core bone that can overturn of sand in-core to play the purpose that improves molding efficiency, reduces the molding sand use amount, improves the gas permeability and dries by the fire the permeability.
The utility model discloses a technical means as follows:
the utility model provides a dedicated core of screw oar cap casting frock of modelling which characterized in that, the core mould frock include: the sand box comprises a bottom plate, a hollow core rod, a shaft lever, a scraper and a sand box; the shaft lever is vertically inserted into a shaft lever hole on the bottom plate; the sand box is placed on the bottom plate, and the shaft lever is positioned at the center of the sand box; the hollow core bar is inversely assembled on the shaft lever, and the top surface of the hollow core bar faces downwards and is tightly attached to the top surface of the bottom plate; the scraper is sleeved on the upper part of the shaft lever and can rotate around the shaft lever.
Further, the hollow core comprises: the device comprises a flange plate, a coaming, a box turning sleeve and a bottom leather; the coaming is a cylindrical structure with a certain height; the top of the coaming is welded with a flange; the bottom of the coaming and the bottom skin are welded together in the same diameter; and two box turning sleeves are symmetrically and horizontally welded at the lower part of the coaming.
Furthermore, a concentric shaft lever positioning hole is respectively processed in the middle of the flange and the bottom leather and is used for being assembled with a shaft lever.
Furthermore, a plurality of reinforcing rib plates are uniformly welded between the lower edge of the flange plate and the outer wall of the enclosing plate.
Furthermore, the flange plate is made of a steel plate with the thickness of more than 20mm, and the integral rigidity of the hollow core is guaranteed.
Furthermore, the coaming and the bottom leather are made of steel plates with the thickness of 5mm, so that the mold core has certain deformability.
Furthermore, air holes with the distance of 100mm and the diameter of 20mm are uniformly distributed on the surfaces of the coaming and the bottom leather.
Furthermore, a plurality of reinforcing rib plates are welded between the box turning sleeve and the inner wall and the outer wall of the enclosing plate.
Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model provides a special core molding tool for casting a propeller cap.A flange plate is made of a steel plate with the thickness of about 20mm, and the integral rigidity of a hollow core rod is ensured;
2. the utility model provides a special core molding tool for casting propeller caps, wherein the side wall and the bottom skin are contacted with core sand, the surface processing distance is about 100mm, and the diameter of the air holes is about 20mm, and the air holes are used for sand mold drainage and ventilation;
3. the utility model provides a dedicated core of screw oar cap casting frock of modelling, lateral wall and end skin adopt the about 5 mm's of thickness steel sheet, can make the core have certain deformability
4. The utility model provides a special core molding tool for casting a propeller cap, which is provided with a box turning sleeve and is used for turning a box when a core is manufactured;
5. the utility model provides a dedicated core of screw oar cap casting frock of modelling is provided with the thick stick locating hole for it is coaxial with the core scraper blade of making to make this frock, ensures that each direction of core eats the even of sand volume.
To summer up, use the technical scheme of the utility model the molding inefficiency among the prior art, molding sand use amount are big, the gas permeability is poor, the size is thick big to the sand mould dry by the fire very unfavorable scheduling problem thoroughly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic view of the core molding tool of the present invention using a hollow core;
FIG. 2 is a schematic view of an assembled mold structure;
FIG. 3 is a schematic view of the hollow core structure of the present invention;
fig. 4 is a top view of the hollow core rod of the present invention.
In the figure: 1. the casting mold comprises a bottom plate 2, a sand tire 3, a hollow core bar 31, a flange plate 32, a coaming 33, a box turnover sleeve 34, a shaft lever positioning hole 35, a bottom leather 4, a shaft lever 5, a scraper 6, a sand box 7, a mold core 8, an outer skin casting mold 9, a paddle cap blank 10 and a pressing lever.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element in question must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
As shown in the figure, the utility model provides a dedicated core of screw oar cap casting frock of modelling, a serial communication port, the core frock of modelling include: the sand box comprises a bottom plate 1, a hollow core rod 3, a shaft lever 4, a scraping plate 5 and a sand box 6; the shaft lever 4 is vertically inserted into a shaft lever hole on the bottom plate 1; the sand box 6 is placed on the bottom plate 1, and the shaft lever 4 is positioned at the center of the sand box 6; the hollow core rod 3 is inversely assembled on the shaft lever 4, and the top surface of the hollow core rod faces downwards and is tightly attached to the top surface of the bottom plate 1; the scraper 5 is sleeved on the upper part of the shaft 4 and can rotate around the shaft 4.
The hollow core comprises: the flange plate 31, the coaming 32, the box turnover sleeve 33 and the bottom leather 35;
the shroud 32 is a cylindrical structure having a certain height; the top of the coaming 32 is welded with a flange plate 31; the bottom of the coaming 32 and the bottom skin 35 are welded together in the same diameter; two turnover sleeves 33 are symmetrically and horizontally welded at the lower part of the coaming 32.
The flange 31 and the middle part of the bottom leather 35 are respectively provided with a concentric shaft positioning hole 34 for being assembled with the shaft 4.
A plurality of reinforcing rib plates are uniformly welded between the lower edge of the flange plate 31 and the outer wall of the enclosing plate 32.
The flange 31 is made of a steel plate having a thickness of 20mm or more.
The coaming 32 and the bottom skin 35 are made of steel plates with the thickness of 5 mm. Air holes with the distance of 100mm and the diameter of 20mm are uniformly distributed on the surfaces of the coaming 32 and the bottom leather 35.
A plurality of reinforcing rib plates are welded between the inner wall and the outer wall of the box turnover sleeve 33 and the coaming 32.
Example 1
As shown in fig. 2 and 3, the invention provides a special core molding tool for casting a propeller cap, wherein a shaft rod 4 is assembled on a flat bottom plate 1, a sand box 6 is placed on the bottom plate 1, and a sand tire 2 is manufactured.
The hollow core 3 is assembled on the shaft lever 4 in an inverted manner, the flange 31 of the hollow core 3 is tightly attached to the bottom plate 1 downwards, the space between the hollow core 3 and the sand body 2 is filled with core sand to prepare the upper half part of the core 7, then the scraper 5 is assembled on the shaft lever 4, and the lower half part of the core 7 is scraped by the scraper 5, so that the pounding of the whole core 7 is completed.
Next, the scraper 5 and the shaft lever 4 are removed, the mold core 7 outside the turnover sleeve 33 is dug to the turnover sleeve 33, the mold core 7 is lifted by the turnover sleeve 33 using a lifting device, the mold core 7 is turned over so that the flange 31 faces upward, the flange 31 and the pressing lever 10 are firmly assembled, the complete mold is assembled with the skin mold 8, and finally, the two through holes dug out of the mold core 7 and the hole left by taking out the shaft lever 7 are repaired with molding sand and are crushed.
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; for the marine propeller hollow structural parts with the structure similar to the paddle cap, such as a vortex-eliminating fin, an oil cylinder and a paddle hub, if the hollow core bone is adopted for modeling, the modeling method is completely the same as the paddle cap; although the present invention has been described in detail with reference to the foregoing embodiments, it should 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; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (8)
1. The utility model provides a dedicated core of screw oar cap casting frock of modelling which characterized in that, the core mould frock include: the sand box comprises a bottom plate (1), a hollow core rod (3), a shaft lever (4), a scraping plate (5) and a sand box (6);
the shaft lever (4) is vertically inserted into a shaft lever hole on the bottom plate (1);
the sand box (6) is placed on the bottom plate (1), and the shaft lever (4) is positioned at the center of the sand box (6);
the hollow core rod (3) is inversely assembled on the shaft lever (4), and the top surface of the hollow core rod faces downwards and is tightly attached to the top surface of the bottom plate (1);
the scraper (5) is sleeved on the upper part of the shaft lever (4) and can rotate around the shaft lever (4).
2. The special core molding tool for casting the propeller cap as recited in claim 1, wherein the hollow core bar comprises: the device comprises a flange plate (31), a coaming (32), a box turning sleeve (33) and a bottom leather (35);
the coaming (32) is a cylindrical structure with a certain height;
the bottom of the coaming (32) and the bottom skin (35) are welded together in the same diameter;
the top of the coaming (32) is welded with a flange plate (31);
and two box turning sleeves (33) are symmetrically and horizontally welded at the lower part of the coaming (32).
3. The special core molding tool for casting the propeller cap as recited in claim 2, wherein a concentric shaft lever positioning hole (34) is respectively processed in the middle of the flange (31) and the bottom skin (35) for being assembled with the shaft lever (4).
4. The special core molding tool for casting the propeller cap according to claim 3, wherein a plurality of reinforcing rib plates are uniformly welded between the lower edge of the flange plate (31) and the outer wall of the enclosing plate (32).
5. The special core molding tool for casting the propeller cap as recited in claim 4, wherein the flange plate (31) is made of a steel plate with a thickness of more than 20 mm.
6. The special core molding tool for casting the propeller cap as recited in claim 2, wherein the coaming (32) and the bottom skin (35) are made of steel plates with the thickness of 5 mm.
7. The special core molding tool for casting the propeller cap as claimed in claim 6, wherein air holes with the distance of 100mm and the diameter of 20mm are uniformly distributed on the surfaces of the coaming (32) and the bottom skin (35).
8. The special core molding tool for casting the propeller cap according to claim 2, wherein a plurality of reinforcing rib plates are welded between the box turning sleeve (33) and the inner wall and the outer wall of the enclosing plate (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922449709.0U CN211386803U (en) | 2019-12-27 | 2019-12-27 | Dedicated core molding frock of screw oar cap casting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922449709.0U CN211386803U (en) | 2019-12-27 | 2019-12-27 | Dedicated core molding frock of screw oar cap casting |
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| Publication Number | Publication Date |
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| CN211386803U true CN211386803U (en) | 2020-09-01 |
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| CN201922449709.0U Active CN211386803U (en) | 2019-12-27 | 2019-12-27 | Dedicated core molding frock of screw oar cap casting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114309491A (en) * | 2021-12-29 | 2022-04-12 | 大连船用推进器有限公司 | Cavity structure and method convenient for observing drying state of large propeller blade |
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2019
- 2019-12-27 CN CN201922449709.0U patent/CN211386803U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114309491A (en) * | 2021-12-29 | 2022-04-12 | 大连船用推进器有限公司 | Cavity structure and method convenient for observing drying state of large propeller blade |
| CN114309491B (en) * | 2021-12-29 | 2023-11-14 | 大连船用推进器有限公司 | Cavity structure and method convenient for observing baking state of large-sized propeller blade |
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