CN216267107U - Low-density material forming device for shell - Google Patents
Low-density material forming device for shell Download PDFInfo
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- CN216267107U CN216267107U CN202122913401.4U CN202122913401U CN216267107U CN 216267107 U CN216267107 U CN 216267107U CN 202122913401 U CN202122913401 U CN 202122913401U CN 216267107 U CN216267107 U CN 216267107U
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Abstract
The utility model discloses a low-density material forming device for a shell. The low-density material is coated on the inner surface of the shell, and the device comprises: the plastic bag film is used for wrapping the shell coated with the low-density material; the breathable film is arranged on the low-density material; the shape of the breathable film is the same as that of the inner surface of the shell coated with the low-density material, and the breathable film and the shell are equal in size; the hard plate is positioned on the breathable film and is fixedly connected with the breathable film; an air exhaust hole is formed in the plastic bag film and is used for enabling one end of an air exhaust pipe to penetrate; and the other end of the exhaust tube is connected with a vacuum pump for vacuumizing the plastic bag film and heating and curing the vacuumized low-density material of the shell through an oven. According to the utility model, the plastic bag film, the exhaust pipe and the vacuum pump are arranged, so that the shell wrapped by the plastic bag film can be vacuumized and then heated and cured, and the problems of non-adhesion of the boundary after curing and pollution to the shell caused by flowing of the low-density material in the curing process are solved.
Description
Technical Field
The utility model relates to the technical field of low-density material forming, in particular to a low-density material forming device for a shell.
Background
In the prior art, an aluminum alloy thin-wall shell is required to provide positive buoyancy when used in deep water, so that a low-density high-strength material needs to be installed and coated inside the shell. Due to the complex internal structure of the shell, the special manufacturability of the low-density high-strength material, and the like, the low-density material needs to be coated inside the shell, and then pre-curing or heating curing and the like are carried out. The low-density material can expand in volume during the curing and forming process to cause density change, resin fluidity in the uncured low-density material is increased during the heating and curing process, and the uncured low-density material flows to cause non-adhesion of the boundary after curing, pollution to the processed surface of the shell and the like.
The low-density material is solidified by using an internal and external forming pressure tool in the prior art, and the forming tool has the following difficulties: (1) the inner and outer forming pressure tools are made of metal materials, so that the labor intensity of manual operation is high; (2) the flatness requirement on the coated substrate of the low-density high-strength material is high, so that the overall density is not uniform; (3) the requirement on the tightness of the tool is high, and the problem of resin flow in the buoyancy material can occur; (4) it is difficult to solve the problem of low density materials flowing during the curing process.
Aiming at the problems that the low-density material flows in the curing process to cause non-adhesion of the cured boundary, pollution to the shell and high operation labor intensity when the low-density material is fixed by using an internal and external forming pressure tool in the prior art, an effective solution is not provided at present.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a low-density material forming device for a shell, which aims to solve the problems that in the prior art, an internal and external forming pressure tool is used for fixing a low-density material, the low-density material flows in the curing process, so that the cured boundary is not attached, the shell is polluted, and the operation labor intensity is high.
In order to achieve the above object, the present invention provides an apparatus for molding a low-density material for a housing, the low-density material being applied to an inner surface of the housing, the apparatus comprising: the air permeable membrane, the hard plate and the plastic bag membrane are used for wrapping the shell coated with the low-density material; the breathable film is arranged on the low-density material; the breathable film and the inner surface of the shell coated with the low-density material are the same in shape and size; the hard plate is positioned on the breathable film and is fixedly connected with the breathable film; an air exhaust hole is formed in the plastic bag film and is used for enabling one end of an air exhaust pipe to penetrate; and the other end of the exhaust pipe is connected with a vacuum pump for vacuumizing the plastic bag film and heating and curing the vacuumized low-density material of the shell through an oven.
Optionally, a separation membrane is adhered to the port or the hole of the housing.
Optionally, the hard plate and the breathable film have the same shape and the same size.
Optionally, the low density material is a foam.
Optionally, the thickness of the hard plate is 3-5 mm.
Optionally, the hard plate is made of silica gel or glass fiber reinforced plastic.
Optionally, the hard plate is fixedly connected with the breathable film through an adhesive.
The utility model has the beneficial effects that:
the utility model provides a low-density material forming device for a shell, wherein the low-density material is coated on the inner surface of the shell, and the device comprises: the air permeable membrane, the hard plate and the plastic bag membrane are used for wrapping the shell coated with the low-density material; the breathable film is arranged on the low-density material; the breathable film and the inner surface of the shell coated with the low-density material are the same in shape and size; the hard plate is positioned on the breathable film and is fixedly connected with the breathable film; an air exhaust hole is formed in the plastic bag film and is used for enabling one end of an air exhaust pipe to penetrate; and the other end of the exhaust pipe is connected with a vacuum pump for vacuumizing the plastic bag film and heating and curing the vacuumized low-density material of the shell through an oven.
In the structural design, the plastic bag film, the exhaust pipe and the vacuum pump are arranged, the shell coated with the low-density material and wrapped by the plastic bag film can be vacuumized and then heated and cured, the problems that the low-density material flows in the curing process to cause no attachment of the boundary after curing and pollute the shell are solved, the device is simple to operate, and the working efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of a device for forming a low-density material for a housing according to an embodiment of the present invention.
Description of the symbols:
a ventilated membrane-1, a hard plate-2, a plastic bag membrane-3, an exhaust pipe-4, a separation membrane-5, a shell-6, a low-density material-7 and a sealing rubber strip-8.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, 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.
The low-density material 7 is solidified by using an internal and external forming pressure tool in the prior art, and the forming tool has the following difficulties: (1) the inner and outer forming pressure tools are made of metal materials, so that the labor intensity of manual operation is high; (2) the flatness requirement on the coated substrate of the low-density high-strength material is high, so that the overall density is not uniform; (3) the requirement on the tightness of the tool is high, and the problem of resin flow in the buoyancy material can occur; (4) it is difficult to solve the problem that the low-density material 7 flows during the curing process.
Accordingly, the present invention provides an apparatus for forming a low-density material 7 for a housing 6, and fig. 1 is a schematic structural view of an apparatus for forming a low-density material 7 for a housing 6 according to an embodiment of the present invention, as shown in fig. 1, the low-density material 7 is coated on an inner surface of the housing 6, and the low-density material 7 is a foam, specifically, a synthetic foam, such as: the glass bead resin composite material is mainly characterized by low density and has the functions of shock absorption, insulation and fire prevention.
The device includes: a breathable film 1, a hard plate 2 and a plastic bag film 3 for wrapping the shell 6 coated with a low-density material 7;
the breathable film 1 is arranged on the low-density material 7; the air permeable membrane 1 and the inner surface of the shell 6 coated with the low-density material 7 have the same shape and the same size;
specifically, according to the shape of the inner surface of the case 6 on which the low-density material 7 is coated, a gas permeable membrane 1 having the same shape and size as the low-density material is obtained, and the gas permeable membrane 1 is placed on the low-density material 7; wherein the air permeable membrane 1 has the characteristic that air molecules can freely pass through but other material molecules constituting the low-density material 7 cannot pass through, so that it can be ensured that molecules of the low-density material 7 do not pass through the air permeable membrane 1.
In an alternative embodiment, the separation membrane 5 is adhered to the port or hole of the housing 6, that is, the separation membrane 5 is adhered around the low-density material 7 to protect the housing 6 and prevent the uncured low-density material 7 from flowing to contaminate the housing 6 during the heating process.
In an alternative embodiment, the hard plate 2 is positioned on the breathable film 1 and fixedly connected with the breathable film 1; specifically, the hard plate 2 is fixedly connected with the breathable film 1 through viscose; the hard plate 2 and the breathable film 1 are same in shape and size, so that the breathable film 1 can be completely covered by the hard plate 2. The thickness of the hard plate 2 is 3-5 mm. The hard plate 2 is made of silica gel or glass fiber reinforced plastic.
Specifically, the hard plate 2 is paved on the breathable film 1, and the hard plate 2 has certain supporting strength, so that the external pressure is uniformly distributed, meanwhile, the hard plate 2 can effectively prevent the uncured low-density material 7 from flowing in the heating process, and the size and other attachment types of the cured low-density material 7 are realized.
An air exhaust hole is formed in the plastic bag film 3 and is used for enabling one end of an air exhaust pipe 4 to penetrate; and the other end of the exhaust tube 4 is connected with a vacuum pump for vacuumizing the plastic bag film 3 and heating and curing the vacuumized low-density material 7 of the shell 6 through an oven.
Specifically, according to the size of the shell 6, a plastic bag film 3 capable of completely wrapping the shell 6 is obtained, and the shell 6 after the rigid plate 2 is adhered to the plastic bag film 3 is wrapped; and sealing rubber strips 8 are adhered to the periphery of the plastic bag film 3 to prevent the plastic bag film 3 from being breathable. Forming an air exhaust hole in the plastic bag film 3, penetrating one end of an air exhaust pipe 4 into the air exhaust hole, and connecting the other end of the air exhaust pipe 4 with a vacuum pump to vacuumize the plastic bag film 3; care should be taken to prevent breakage of the plastic bag film 3 during operation; starting a vacuum pump, and closing the vacuum pump to finish the vacuumizing process when the vacuum degree value in the plastic bag film 3 reaches more than 98% and the vacuum degree reduction value is lower than 5%; and placing the low-density material 7 of the shell 6 after vacuum pumping in an oven for heating and curing to obtain the target shell 6. Wherein the heating temperature is 90-110 ℃; the heating time is 8-9 h.
The wrapping method of the plastic bag film 3 comprises the following steps: wrapping half of the plastic bag film 3 with half of the shell, and adhering sealing adhesive strips 8 around the plastic bag film 3 to ensure that the sealing adhesive strips 8 are adhered tightly and firmly; and the other half of the shell is wrapped by the other half of the plastic bag film 3, and the sealing rubber strips 8 are adhered to the periphery of the other half of the plastic bag film 3, so that the tight adhesion of the sealing rubber strips 8 is ensured.
After the heating and curing is completed, the vacuum tube is pulled out, the plastic bag film 3 is removed, the hard plate 2 is recovered, and the separation film 5 is torn off.
The utility model has the beneficial effects that:
the utility model provides a device for molding a low-density material 7 for a shell 6, wherein the low-density material 7 is coated on the inner surface of the shell 6, and the device comprises: a breathable film 1, a hard plate 2 and a plastic bag film 3 for wrapping the shell 6 coated with a low-density material 7; the breathable film 1 is arranged on the low-density material 7; the air permeable membrane 1 and the inner surface of the shell 6 coated with the low-density material 7 have the same shape and the same size; the hard plate 2 is positioned on the breathable film 1 and is fixedly connected with the breathable film 1; an air exhaust hole is formed in the plastic bag film 3 and is used for enabling one end of an air exhaust pipe 4 to penetrate; and the other end of the exhaust tube 4 is connected with a vacuum pump for vacuumizing the plastic bag film 3 and heating and curing the vacuumized low-density material 7 of the shell 6 through an oven.
In the structural design, the plastic bag film 3, the exhaust pipe 4 and the vacuum pump are arranged, the shell 6 coated with the low-density material 7 and wrapped by the plastic bag film 3 can be vacuumized and then heated and cured, the problems that the low-density material 7 flows in the curing process to cause no adhesion of the boundary after curing and pollution to the shell 6 are solved, the device is simple to operate, and the working efficiency is improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A low-density material forming device for a housing, the low-density material being applied to an inner surface of the housing, the device comprising: the air permeable membrane, the hard plate and the plastic bag membrane are used for wrapping the shell coated with the low-density material;
the breathable film is arranged on the low-density material; the breathable film and the inner surface of the shell coated with the low-density material are the same in shape and size;
the hard plate is positioned on the breathable film and is fixedly connected with the breathable film;
an air exhaust hole is formed in the plastic bag film and is used for enabling one end of an air exhaust pipe to penetrate; and the other end of the exhaust pipe is connected with a vacuum pump for vacuumizing the plastic bag film and heating and curing the vacuumized low-density material of the shell through an oven.
2. The apparatus of claim 1, wherein:
and a separation membrane is adhered to the port and the hole of the shell.
3. The apparatus of claim 1, wherein:
the hard plate and the breathable film are same in shape and size.
4. The apparatus of claim 1, wherein:
the low density material is a foam.
5. The apparatus of claim 1, wherein:
the thickness of the hard plate is 3-5 mm.
6. The apparatus of claim 5, wherein:
the hard plate is made of silica gel or glass fiber reinforced plastic.
7. The apparatus of claim 1, wherein:
the hard plate is fixedly connected with the breathable film through adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122913401.4U CN216267107U (en) | 2021-11-25 | 2021-11-25 | Low-density material forming device for shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122913401.4U CN216267107U (en) | 2021-11-25 | 2021-11-25 | Low-density material forming device for shell |
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| Publication Number | Publication Date |
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| CN216267107U true CN216267107U (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122913401.4U Active CN216267107U (en) | 2021-11-25 | 2021-11-25 | Low-density material forming device for shell |
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| CN (1) | CN216267107U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114147887A (en) * | 2021-11-25 | 2022-03-08 | 山西汾西重工有限责任公司 | Low-density material forming device and method for shell |
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2021
- 2021-11-25 CN CN202122913401.4U patent/CN216267107U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114147887A (en) * | 2021-11-25 | 2022-03-08 | 山西汾西重工有限责任公司 | Low-density material forming device and method for shell |
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