CN222094687U - Precoated sand mold convenient for demolding - Google Patents
Precoated sand mold convenient for demolding Download PDFInfo
- Publication number
- CN222094687U CN222094687U CN202420387415.8U CN202420387415U CN222094687U CN 222094687 U CN222094687 U CN 222094687U CN 202420387415 U CN202420387415 U CN 202420387415U CN 222094687 U CN222094687 U CN 222094687U
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- Prior art keywords
- mold
- template
- coated sand
- easy
- box
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- 239000004576 sand Substances 0.000 title claims abstract description 26
- 238000004512 die casting Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 238000010096 film blowing Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims 1
- 238000000465 moulding Methods 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000002489 tectorial membrane Anatomy 0.000 description 1
Landscapes
- Casting Devices For Molds (AREA)
Abstract
本实用新型公开了一种便于脱模的覆膜砂模具，包括作业机架和模具主体，所述作业机架的上端表面安装有空气压缩机和真空泵，模具主体的内部安装有模具盒，真空泵的一端通过抽真空管与模具盒的内部相连通，所述模具主体上分别安装有上模板和下模板，下模板的上端表面四个拐角位置处均安装有驱动气缸，驱动气缸的输出端通过升降驱动杆与上模板固定连接。本实用新型通过设置有便捷组装成型的上模板和下模板结构，利用真空泵把模具盒内部的空气抽去，使覆膜砂型坯按模具腔内部轮廓成型，随着真空度的提高，型坯下方的成型压力只有0.06‑0.085MPa，而型坯上方的空气压力仍保持在0.1MPa左右，冷却定型后用空气压缩机将制品从模具盒中吹出而脱模，具备脱模作业方便的优点。
The utility model discloses a coated sand mold that is easy to demould, including an operating frame and a mold body, an air compressor and a vacuum pump are installed on the upper surface of the operating frame, a mold box is installed inside the mold body, one end of the vacuum pump is connected to the inside of the mold box through a vacuum pipe, an upper template and a lower template are respectively installed on the mold body, and a driving cylinder is installed at the four corner positions of the upper surface of the lower template, and the output end of the driving cylinder is fixedly connected to the upper template through a lifting driving rod. The utility model is provided with an upper template and a lower template structure that are convenient to assemble and form, and the air inside the mold box is extracted by a vacuum pump, so that the coated sand blank is formed according to the internal contour of the mold cavity. With the increase of the vacuum degree, the molding pressure below the blank is only 0.06-0.085MPa, while the air pressure above the blank is still maintained at about 0.1MPa. After cooling and finalizing, the product is blown out of the mold box by an air compressor for demoulding, and has the advantage of convenient demoulding operation.
Description
Technical Field
The utility model relates to the technical field of molds, in particular to a precoated sand mold convenient for demolding.
Background
The sand-lined iron mold is one of special casting, and the casting mold is formed by attaching a thin layer of film sand on the inner cavity of metal, and the metal mold is called as an iron mold. In the traditional sand-lined metal mold casting production process, the demolding process of the mold is generally finished by manpower, the manual operation strength is high, the efficiency is low, the cost is high, and in the sand-lined metal mold casting process, precoated sand (generally phenolic resin) can collapse at a high temperature and automatically fall off from the inner cavity of the metal mold under the action of self gravity. If the viscosity of the phenolic resin cannot be overcome due to self gravity in the demolding process, demolding cannot be automatically completed, and the production efficiency of the whole production line is greatly limited.
The utility model discloses a chinese patent document of publication No. CN215941435U, discloses an iron mould sand coating mould mechanism convenient to drawing of patterns, which comprises a supporting pedestal, the lower surface of support is provided with the mould, and the below of going up the mould corresponds and is provided with the bed die, the lower surface of bed die is provided with elastic support seat and vibrator, the top of support is provided with the mounting panel, be provided with the pneumatic cylinder around the mounting panel, the output of pneumatic cylinder is provided with the clamp plate seat, the support slides and is provided with the slip extension board, the slip extension board sets up in the both sides of support, and this iron mould sand coating mould mechanism convenient to drawing of patterns is through the vertical rectilinear motion of pneumatic cylinder drive clamp plate seat, is ejecting the foundry goods from the bed die to reduced operating strength by a wide margin, improved machining efficiency, and reduced machining cost, drive arrangement drives the bed die upset and makes it unsettled, thereby vibrator mould sand coating unsettled state under vibrations and gravity effect realize the tectorial membrane sand drawing of patterns, improves production efficiency.
When the precoated sand mold in the prior art is used for demolding, the problems of low demolding speed and inconvenient operation exist, and the mold is easy to damage, so that the precoated sand mold convenient for demolding needs to be developed.
Disclosure of utility model
The utility model aims to provide a precoated sand mold convenient for demolding, which aims to solve the problems of low demolding speed and inconvenient operation of the precoated sand mold in the prior art in the background art.
In order to achieve the aim, the utility model provides the technical scheme that the precoated sand mold convenient for demolding comprises an operation rack and a mold main body, wherein an air compressor and a vacuum pump are respectively arranged on the upper end surface of the operation rack, a mold box is arranged in the mold main body, one end of the air compressor is communicated with the interior of the mold box through a film blowing guide pipe, one end of the vacuum pump is communicated with the interior of the mold box through a vacuumizing pipe, an upper mold plate and a lower mold plate are respectively arranged on the mold main body, driving cylinders are respectively arranged at four corner positions of the upper end surface of the lower mold plate, and the output end of each driving cylinder is fixedly connected with the upper mold plate through a lifting driving rod.
Based on the above, the bottom of lower bolster is installed the mould base, through welded fastening connection between mould base and the lower bolster.
Based on the above, sealing rings are arranged at the connection parts of the film blowing guide pipe, the vacuumizing pipe and the die box.
Based on the above, die casting template is installed to the internally mounted of mould box, and die casting template is fixed with the gomphosis of the inside cavity of mould box.
Based on the above, the upper end surface of the die casting template is provided with the positioning guide post, and the lower end surface of the upper template is provided with the sealing clamping piece.
Based on the above, a positioning clamping groove is formed in the sealing clamping piece, and the positioning clamping groove is correspondingly connected with the positioning guide post.
Based on the above, universal wheels are installed at four corners of the bottom end of the working frame.
Compared with the prior art, the utility model has the beneficial effects that:
According to the utility model, through the structure of the upper template and the lower template which are convenient to assemble and mold, the air in the mold box is pumped out by the vacuum pump, so that the precoated sand parison is molded according to the inner contour of the mold cavity, the molding pressure below the parison is only 0.06-0.085MPa along with the improvement of the vacuum degree, the air pressure above the parison is still kept at about 0.1MPa, and the product is blown out from the mold box by the air compressor after cooling and shaping, so that the mold stripping operation is convenient.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the bottom structure of the present utility model;
Fig. 3 is a schematic exploded view of the present utility model.
The device comprises a film blowing guide pipe, a air compressor, a working frame, a vacuum pump, a vacuumizing pipe, a mold main body, a 7 upper template, a 8 lifting driving rod, a 9 driving cylinder, a10 lower template, a11 mold base, a12 sealing clamping piece, a 13 die casting template, a 14 positioning guide pillar, a 15 mold box.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-3, in an embodiment of the utility model, a precoated sand mold convenient for demolding comprises a working frame 3 and a mold main body 6, wherein an air compressor 2 and a vacuum pump 4 are respectively arranged on the upper end surface of the working frame 3, a mold box 15 is arranged in the mold main body 6, one end of the air compressor 2 is communicated with the interior of the mold box 15 through a film blowing pipe 1, one end of the vacuum pump 4 is communicated with the interior of the mold box 15 through a vacuumizing pipe 5, an upper mold plate 7 and a lower mold plate 10 are respectively arranged on the mold main body 6, driving cylinders 9 are respectively arranged at four corner positions of the upper end surface of the lower mold plate 10, and the output end of each driving cylinder 9 is fixedly connected with the upper mold plate 7 through a lifting driving rod 8.
Further, a die base 11 is mounted at the bottom end of the lower die plate 10, and the die base 11 is fixedly connected with the lower die plate 10 through welding.
Further, sealing rings are arranged at the connection parts of the film blowing guide pipe 1, the vacuumizing pipe 5 and the die box 15.
Further, a die casting die plate 13 is mounted in the die box 15, and the die casting die plate 13 is fixedly fitted into the cavity in the die box 15.
Further, a positioning guide post 14 is provided on the upper end surface of the die casting die plate 13, and a sealing engaging member 12 is provided on the lower end surface of the upper die plate 7.
Further, a positioning slot is provided in the sealing engaging member 12, and the positioning slot is correspondingly connected with the positioning guide post 14.
Further, universal wheels are mounted at four corners of the bottom end of the working frame 3.
When the die is used, the air compressor 2 and the vacuum pump 4 are respectively arranged on the upper end surface of the working frame 3, the die box 15 is arranged in the die main body 6, one end of the air compressor 2 is communicated with the inside of the die box 15 through the film blowing pipe 1, one end of the vacuum pump 4 is communicated with the inside of the die box 15 through the vacuumizing pipe 5, the upper die plate 7 and the lower die plate 10 are respectively arranged on the die main body 6, the driving air cylinders 9 are respectively arranged at four corner positions of the upper end surface of the lower die plate 10, the output ends of the driving air cylinders 9 are fixedly connected with the upper die plate 7 through the lifting driving rods 8, the driving air cylinders 9 are started to drive the lifting driving rods 8 to move upwards in a pressing mode, the upper die plate 7 and the lower die plate 10 are driven to be separated, hot-melt plastics are poured into the die box 15, then the upper die plate 7 is driven to be matched with the lower die plate 10 through the driving air cylinders 9, air in the inside the die box 15 is pumped out through the vacuum pump 4, a film-coated sand blank is molded according to the internal contour of the die cavity, the molding pressure is only 0.06-0.085MPa below the molding pressure along with the improvement of the vacuum degree, the molding pressure is kept at the upper die blank pressure of 0.085MPa, and the left air is still cooled in the die box 2 is cooled, and the left air is cooled after the die blank is cooled, and the product is convenient to be cooled, and the left and the product is cooled, and the product is left and the product is cooled and the left and the 2.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Standard parts used in the document of the application can be purchased from the market, the specific connection modes of the parts are connected by adopting conventional means such as mature bolts, rivets and welding in the prior art, and the machines, the parts and the equipment are of conventional types in the prior art, and the circuit connection adopts the conventional connection modes in the prior art, so that the specific description is not made.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420387415.8U CN222094687U (en) | 2024-02-29 | 2024-02-29 | Precoated sand mold convenient for demolding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420387415.8U CN222094687U (en) | 2024-02-29 | 2024-02-29 | Precoated sand mold convenient for demolding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222094687U true CN222094687U (en) | 2024-12-03 |
Family
ID=93623905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420387415.8U Active CN222094687U (en) | 2024-02-29 | 2024-02-29 | Precoated sand mold convenient for demolding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222094687U (en) |
-
2024
- 2024-02-29 CN CN202420387415.8U patent/CN222094687U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |