A vacuum suction casting mold tube dust prevention device

Abstract

The utility model relates to a vacuum suction casting mold barrel dustproof device, which belongs to the technical field of casting dustproof equipment, and aims to solve the problem that in the existing vacuum suction casting system, when vacuuming, the fine sand in the mold barrel is easily sucked into the vacuum system, thereby affecting the use of the vacuum system. The application includes a mounting seat and a dustproof component, the mounting seat is provided with a ventilation hole that penetrates the seat body; the mounting seat is fixedly mounted on the vacuum hole side of the mold barrel, and the ventilation hole of the mounting seat is connected to the vacuum hole; the mounting seat is provided with a mounting cavity connected to the ventilation hole; the dustproof component includes a filter component and a fixing; the filter component is installed in the mounting cavity through the fixing. The application prevents the fine sand in the mold barrel from being sucked into the vacuum system when vacuuming through the filtering effect of the filter component, thereby achieving the purpose of dust prevention. Reduce equipment downtime, ensure product quality, and improve production efficiency.

Description

Technical Field

[0001] The utility model relates to a vacuum suction casting mold tube dust prevention device, belonging to the technical field of casting dust prevention. Background Art

[0002] In the casting process, centrifugal vacuum casting is a new type of special casting process that can be used in the production of thin-walled parts with high product quality. This process makes full use of the advantages of vacuum casting filling, establishes a vacuum in the mold cavity through the vacuum system, and sucks the molten metal into the cavity from bottom to top. The vacuum casting system mainly consists of a vacuum mechanical pump, a vacuum tank, a vacuum hose, a vacuum valve, etc. The vacuuming process is mainly carried out by sucking the vacuum tank through a vacuum mechanical pump. The vacuum tank is connected to the vacuum valve through a vacuum hose. The vacuum valve is set on the mold barrel cover and communicates with the mold barrel, thereby realizing a vacuum environment in the mold barrel.

[0003] After the mold shell is placed in the barrel, in order to prevent the vibration of the mold shell during the centrifugal process, the mold shell is fixed by filling the mold barrel with fine sand, closing the mold barrel cover, and vacuuming after the filling process. During the vacuuming process, the fine sand particles in the mold barrel can easily enter the vacuum system through the vacuum valve, thereby affecting the normal application of the vacuum system. Therefore, a dustproof device is urgently needed to solve the problem that in the existing vacuum suction casting system, the fine sand in the mold barrel is easily sucked into the vacuum system during vacuuming, thereby affecting the use of the vacuum system. Utility Model Content

[0004] The utility model aims to provide a vacuum suction mold tube dust prevention device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vacuum suction casting mold tube dustproof device, including a mounting seat and a dustproof assembly, the mounting seat is provided with a ventilation hole penetrating the seat body; the mounting seat is fixedly mounted on the vacuum hole side of the mold tube, and the ventilation hole of the mounting seat is connected to the vacuum hole; the mounting seat is provided with a mounting cavity connected to the ventilation hole; the dustproof assembly includes a filter assembly and a fixing; the filter assembly is mounted in the mounting cavity through the fixing.

[0006] Specifically, the mold cylinder comprises a cylinder body and a cylinder cover; the cylinder cover covers the upper opening of the cylinder body and is provided with a vacuum hole; the mounting seat is mounted on one side of the vacuum hole of the cylinder cover located on the cylinder body side.

[0007] Specifically, the wall of the mold barrel located on the side of the vacuum hole is recessed inward to form a mounting groove; the mounting seat is fixedly mounted in the mounting groove, and the mounting seat body on the side away from the vacuum hole is flush with the groove top wall of the mounting groove. This arrangement ensures that when the mounting seat is mounted on the mold barrel, it does not occupy the internal cavity of the mold barrel, that is, it does not occupy the space of the casting cavity.

[0008] Specifically, the mounting seat includes an upper cover plate and a lower cover plate; ventilation holes are respectively provided on the plates on the upper cover plate and the lower cover plate, and the plate on the side of the ventilation hole of the upper cover plate is recessed inward to form a stepped mounting cavity; the lower cover plate is fixedly mounted on the lower step plate of the stepped mounting cavity, and a mounting cavity is formed between the lower step plate and the upper step plate; the upper cover plate is fixedly mounted in the mounting groove, and the plates on the side of the upper cover plate and the lower cover plate away from the vacuum hole are flush with the groove top wall of the mounting groove. This arrangement enables the lower cover plate to be mounted in the stepped mounting cavity of the upper cover plate, and a mounting cavity of the filter assembly is formed between them, so that the filter assembly is mounted in the mounting cavity, and is limited and fixed by the lower cover plate to ensure the filtering and dustproof effect.

[0009] Specifically, the fixing member includes two clamping plates; the clamping plates are provided with first ventilation holes; the two clamping plates are installed in the installation cavity, and the first ventilation holes of the two clamping plates are connected with the ventilation holes; a filter assembly is clamped between the two clamping plates. The filter assembly is clamped and fixed by setting two clamping plates to prevent the filter assembly from being drawn into the vacuum hole during vacuuming, and the clamping plates can fix the position of the filter assembly, thereby filtering fine sand and preventing dust through the filter assembly.

[0010] Specifically, the filter assembly is a fiber filter. The fiber filter is set as a filter assembly to prevent fine sand from entering the vacuum system. In this way, the filter only needs to be replaced within a certain period. When replacing the filter, it only needs to open the cylinder cover to replace it, which is convenient and fast, reducing equipment downtime.

[0011] Specifically, the ventilation holes include a center hole, a first through hole and a second through hole; a center hole is opened in the center of the plate body of the upper cover plate and the lower cover plate, and two circles of through holes are opened on the plate body outside the center hole with the center hole as the center, wherein a circle of through holes adjacent to the center hole is a plurality of first through holes evenly spaced along the circumference, and a circle of through holes outside is a plurality of second through holes evenly spaced along the circumference; the center hole, the first through hole and the second through hole constitute the ventilation holes.

[0012] Specifically, the center hole and the first through hole have the same aperture; the aperture of the second through hole is half of the aperture of the first through hole. The upper cover plate and the lower cover plate are designed with large and small holes to form ventilation holes, which can not only ensure the rigidity and strength of the upper cover plate and the lower cover plate, but also prevent some fine sand from entering the vacuum system when vacuuming.

[0013] Specifically, a plurality of third through holes are evenly spaced apart on the plate body corresponding to the ventilation through hole of the clamping plate to form the first ventilation through hole; the aperture of the third through hole is 1 / 3 of the aperture of the second through hole.

[0014] Specifically, the vacuum hole of the mold barrel is provided with a trumpet-shaped conical hole on one side of the ventilation hole of the mounting seat, and the maximum aperture of the conical hole is adapted to the aperture of the ventilation hole. Since the upper cover plate and the lower cover plate are provided with large and small holes to form the ventilation hole, in order to ensure that the apertures of the ventilation hole and the vacuum hole are adapted to each other so that the vacuum pressure is consistent on both sides of the mounting seat, the vacuum hole is provided with a trumpet-shaped conical hole on one side of the ventilation hole of the mounting seat to increase the vacuum rate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. This application provides a mounting seat with a filter assembly installed on the side of the vacuum hole of the mold barrel, and the filter assembly prevents the fine sand in the mold barrel from being sucked into the vacuum system during vacuuming, thereby achieving the purpose of dust prevention, reducing equipment downtime, ensuring product quality, and improving production efficiency.

[0017] 2. Based on the above, the present application adopts a large and small hole structure on the mounting seat to form a ventilation hole of the mounting seat. On the one hand, the large and small hole structure can ensure the rigidity and strength of the mounting seat, and on the other hand, it can prevent some fine sand from entering the vacuum system.

[0018] 3. Based on the above, the present application sets two clamps to clamp the filter assembly, wherein the filter assembly is a layer of fiber filter screen. The installation of the two clamps can fix the position of the filter screen, thereby ensuring that the filter screen will not be sucked away during vacuuming. At the same time, the filter screen is used to form the filter assembly, and the filter screen only needs to be replaced within a certain period. When replacing the filter screen, it only needs to open the cylinder cover to replace it, which is convenient and fast, reducing equipment downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the mold barrel of the utility model;

[0020] Figure 2 The utility model is a schematic diagram of the ventilation hole opening of the upper cover plate or the lower cover plate of the vacuum suction casting mold tube dust prevention device. DETAILED DESCRIPTION

[0021] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0022] See also Figure 1-2The present embodiment provides a vacuum suction casting mold tube dustproof device, including a mounting seat and a dustproof assembly, the mounting seat is provided with a ventilation hole penetrating the seat body; the mounting seat is fixedly mounted on the vacuum hole side of the mold tube, and the ventilation hole of the mounting seat is connected with the vacuum hole; the mounting seat is provided with a mounting cavity connected with the ventilation hole; the dustproof assembly includes a filter assembly and a fixing member; the filter assembly is mounted in the mounting cavity through the fixing member.

[0023] The mold barrel of this embodiment includes a barrel body 1 and a barrel cover 2; the barrel cover 2 covers the upper opening of the barrel body 1, and a vacuum hole 5 is provided on the barrel cover; the mounting seat is installed on one side of the vacuum hole of the barrel cover located on the barrel body side. The other side of the vacuum hole is located on the outer side of the barrel cover, and is used to install a vacuum valve, which is connected to a vacuum tank through a vacuum hose, and one end of the vacuum tank is connected to a vacuum mechanical pump for vacuuming. Among them, the barrel wall of the mold barrel of this embodiment located on the vacuum hole side is recessed inward to form a mounting groove; the mounting seat is fixedly installed in the mounting groove, and the seat body of the mounting seat away from the vacuum hole side is flush with the top barrel wall of the mounting groove. The mounting seat of the present embodiment includes an upper cover plate 3 and a lower cover plate 4; ventilation holes are respectively provided on the plate bodies on the upper cover plate 3 and the lower cover plate 4, and the plate body of the upper cover plate located on the ventilation hole side is recessed inward to form a stepped mounting cavity; the lower cover plate 4 is fixedly mounted on the lower step plate body of the stepped mounting cavity by opening bolt holes 10 and installing connecting bolts, and a mounting cavity is formed between the lower step plate body and the upper step plate body; the upper cover plate 3 is fixedly mounted in the mounting groove by opening bolt holes 9 and installing connecting bolts, and the plate bodies of the upper cover plate and the lower cover plate on the side away from the vacuum hole are flush with the groove top cylinder wall of the mounting groove.

[0024] In addition, the fixing member of this embodiment includes two clamping plates 6 and 7; the clamping plates are provided with first ventilation holes; the two clamping plates are installed in the installation cavity, and the first ventilation holes of the two clamping plates are connected with the ventilation holes; a filter assembly is clamped between the two clamping plates. Specifically, the filter assembly of this embodiment is a fiber filter 8.

[0025] Furthermore, the ventilation holes of this embodiment include a central hole 11, a first through hole 12 and a second through hole 13; the center of the upper cover plate and the lower cover plate is provided with a central hole 11, and two circles of through holes are provided on the plate outside the central hole with the central hole as the center, wherein the circle of through holes adjacent to the central hole is six first through holes 12 evenly spaced along the circumference, and the circle of through holes outside is six second through holes 13 evenly spaced along the circumference; the central hole 11, the first through hole 12 and the second through hole 13 constitute the ventilation holes. The aperture size of the central hole and the first through hole is 30 mm, and the aperture size of the second through hole is 15 mm.

[0026] In this embodiment, a plurality of third through holes are evenly spaced on the plate body corresponding to the ventilation through hole to form the first ventilation through hole; the aperture size of the third through hole is 5 mm.

[0027] In addition, the vacuum hole 5 of the mold cylinder of the present embodiment is located on one side of the ventilation hole of the mounting seat and is provided with a trumpet-shaped conical surface, and the maximum aperture of the conical surface is adapted to the aperture of the ventilation hole.

[0028] Working principle: When the vacuum suction mold tube dust-proof device of this embodiment is in use, a mold shell is placed in the cylinder of the mold tube. In order to prevent the vibration of the mold shell during the centrifugal process, the mold shell is fixed by filling fine sand inside the mold tube to bury the mold shell, and then the cylinder cover is closed to ensure the sealing of the cylinder cover and the cylinder body. After the filling is completed, vacuuming begins, and the vacuum mechanical pump sucks the vacuum tank. The vacuum tank is connected to the vacuum valve through a vacuum hose to vacuum the mold tube. During the vacuuming process, the fine sand in the cylinder will not enter the vacuuming hole due to the obstruction of the filter screen and the large and small holes on the mounting seat, that is, it will not enter the vacuuming system, thereby ensuring the normal application of the vacuum system, ensuring product quality, and improving production efficiency. After a period of use, the vacuum suction mold tube dust-proof device of this embodiment needs to replace the filter screen in time. When replacing, you only need to open the cylinder cover, remove the lower cover plate and take out the splint, and then you can replace it. It is convenient and fast, and reduces equipment downtime.

[0029] The implementation methods of the utility model are described in detail above in conjunction with the embodiments, but the utility model is not limited to the above-mentioned implementation methods. For ordinary technicians in this technical field, after knowing the contents recorded in the utility model, they can make several equivalent changes and substitutions thereto without departing from the principle of the utility model. These equivalent changes and substitutions should also be regarded as belonging to the protection scope of the utility model.

Claims

1. A vacuum casting mold tube dustproof device, comprising a mounting seat and a dustproof component, characterized in that: The mounting seat is provided with a ventilation hole that penetrates the seat body; the mounting seat is fixedly installed on the vacuum hole side of the mold cylinder, and the ventilation hole of the mounting seat is connected to the vacuum hole; the mounting seat is provided with a mounting cavity connected to the ventilation hole; the dustproof component includes a filter component and a fixing part; the filter component is installed in the mounting cavity through the fixing part.

2. A vacuum suction mold tube dust prevention device according to claim 1, characterized in that: The mold cylinder comprises a cylinder body and a cylinder cover; the cylinder cover covers the upper opening of the cylinder body and is provided with a vacuum hole; the mounting seat is mounted on one side of the vacuum hole of the cylinder cover located on the cylinder body side.

3. A vacuum suction mold tube dust prevention device according to claim 1, characterized in that: The wall of the mold cylinder located on the vacuum hole side is recessed inward to form a mounting groove; the mounting seat is fixedly installed in the mounting groove, and the seat body of the mounting seat away from the vacuum hole is flush with the groove top wall of the mounting groove.

4. A vacuum suction mold tube dust prevention device according to claim 3, characterized in that: The mounting seat comprises an upper cover plate and a lower cover plate; the ventilation holes are respectively provided on the plate bodies on the upper cover plate and the lower cover plate, and the plate body of the upper cover plate located on the ventilation hole side is recessed inward to form a stepped mounting cavity; the lower cover plate is fixedly mounted on the lower step plate body of the stepped mounting cavity, and the mounting cavity is formed between the lower step plate body and the upper step plate body; the upper cover plate is fixedly mounted in the mounting groove, and the plate bodies of the upper cover plate and the lower cover plate on the side away from the vacuum hole are flush with the groove top cylinder wall of the mounting groove.

5. A vacuum suction mold tube dust prevention device according to claim 4, characterized in that: The fixing member includes two clamping plates; a first ventilation hole is opened on the clamping plates; the two clamping plates are installed in the installation cavity, and the first ventilation holes of the two clamping plates are connected to the ventilation hole; the filter assembly is clamped between the two clamping plates.

6. A vacuum suction mold tube dust prevention device according to claim 1, characterized in that: The filter component is a fiber filter.

7. A vacuum suction mold tube dust prevention device according to claim 5, characterized in that: The ventilation through hole includes a center hole, a first through hole and a second through hole; the center hole is opened in the center of the plate body of the upper cover plate and the lower cover plate, and two circles of through holes are opened on the plate body outside the center hole with the center hole as the center, wherein a circle of through holes adjacent to the center hole is a plurality of first through holes evenly opened along the circumference, and a circle of through holes outside is a plurality of second through holes evenly opened along the circumference; the center hole, the first through hole and the second through hole constitute the ventilation through hole.

8. A vacuum suction mold tube dust prevention device according to claim 7, characterized in that: The central hole and the first through hole have the same aperture; the aperture of the second through hole is half of the aperture of the first through hole.

9. A vacuum suction mold tube dust prevention device according to claim 8, characterized in that: A plurality of third through holes are evenly spaced on the plate body corresponding to the ventilation through hole of the clamping plate to form the first ventilation through hole; the aperture of the third through hole is 1 / 3 of the aperture of the second through hole.

10. A vacuum suction mold tube dust prevention device according to claim 1, characterized in that: The vacuuming hole of the mold cylinder is located on one side of the ventilation hole of the mounting seat and is provided with a trumpet-shaped conical surface, and the maximum aperture of the conical surface is adapted to the aperture of the ventilation hole.

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