CN210362134U - Forming die of composite damping material - Google Patents
Forming die of composite damping material Download PDFInfo
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- CN210362134U CN210362134U CN201921305716.7U CN201921305716U CN210362134U CN 210362134 U CN210362134 U CN 210362134U CN 201921305716 U CN201921305716 U CN 201921305716U CN 210362134 U CN210362134 U CN 210362134U
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Abstract
A forming die for composite damping materials relates to a forming die for damping materials. The method aims to solve the technical problems that each layer of the existing mould for preparing the layered composite damping material is not accurate, and a metal net is easy to displace. The mold comprises a lower layer mold, a middle layer mold, an upper layer mold and a locking device; the lower layer die is provided with a bottom cavity and a lower layer groove, the middle layer die is provided with a middle cavity and a middle layer groove, the upper layer die is provided with an upper cavity, and the bottom cavity, the middle cavity and the upper cavity correspond in position. The die can be flexibly matched with damping materials with different components to prepare composite materials with various formulas. When the shapes of the cavities are different, test sample pieces with different shapes can be prepared at the same time; the metal net can be fixed between the two layers of composite materials by the grooves between the layers, and the metal net does not settle or shift and has accurate position. Easy to replace, saves resources and can be used in the field of damping material preparation.
Description
Technical Field
The utility model relates to a forming die of damping material.
Background
Along with the improvement of work and living quality of people, the requirements on earthquake resistance, vibration reduction and noise reduction in the environment are higher and higher, the high-damping structural material is an effective means for solving the problems, and the existing high-damping structural material is generally combined by polymer materials with different viscoelasticity in a layered mode to form a sandwich structure or other layered arrangement structures so as to improve the damping performance of the material. If a composite structure formed by three layers of viscoelastic macromolecule damping materials and a steel plate, a metal mesh sandwich structure composite damping material and the like are utilized, the structure of the layered composite damping material is flexible and variable, the properties of each layer can be different, and metal sheet layers such as plates, meshes and the like can be added among the layers to improve the damping performance of the composite material. Because the structure of the layered composite damping material is complex, and meanwhile, the layered composite damping material needs to be heated and cured in the preparation process, the problem that how to ensure that the thickness of each layer of material meets the design requirement and the metal plate mesh does not displace in the curing heating process is considered before the material is prepared is that the preparation method of the layered composite damping material at present comprises the following steps: the method comprises the steps of utilizing an integrated mold, placing a metal net in the mold, pouring high-molecular pouring liquid into a mold cavity, and solidifying. The metal mesh often takes place the skew, and the thickness of each layer polymer pouring fluid is also inaccurate, is unfavorable for production and scientific research.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the technical problem that each layer of the mould of current preparation stratiform composite damping material is not accurate, the displacement easily takes place for the metal mesh, and provide a composite damping material's forming die.
The utility model discloses a forming die for composite damping material, which comprises a lower die, a middle die, an upper die and a locking device;
the lower layer mold is internally provided with at least one bottom cavity, the upper surface of the lower layer mold is provided with a lower layer groove, the bottom cavity is positioned in an area covered by the lower layer groove, and the upper surface is provided with the lower layer groove for positioning and fixing the metal mesh; arranging a lower layer positioning hole at the edge of the lower layer die; the bottom cavity is blind;
at least one middle cavity is arranged in the middle layer die, and the position of the middle cavity corresponds to that of the bottom cavity; a middle layer groove is arranged on the upper surface of the middle layer die, and the middle cavity is positioned in an area covered by the middle layer groove; arranging a first middle layer positioning hole and a second middle layer positioning hole on the edge of the middle layer mold; the middle cavity is through;
the lower layer positioning hole corresponds to the first middle layer positioning hole in position;
at least one upper cavity is arranged in the upper-layer die, and the position of the upper cavity corresponds to the position of the middle cavity; arranging an upper layer positioning hole at the edge of the upper layer die; the upper cavity is through;
the upper layer positioning hole corresponds to the second middle layer positioning hole in position.
The utility model discloses a composite damping material's forming die's application method, as follows:
firstly, placing a metal net in a lower layer groove on the upper surface of a lower layer die, and fastening the lower layer die and a first middle layer die by a bolt of a bolt and nut suite through a lower layer positioning hole and a first middle layer positioning hole by a nut;
secondly, placing the metal net in a middle layer groove in the middle layer die 2, and fastening the metal net by a bolt of a bolt and nut suite through the upper layer positioning hole and the second middle layer positioning hole by a nut;
and thirdly, integrally pouring the high-molecular pouring liquid or pouring the high-molecular pouring liquid in layers by using different types of pouring liquid, and solidifying to obtain the composite damping material.
The use method of the forming mold of the composite damping material of the embodiment may further include the following steps:
firstly, placing a metal copper mesh in a lower layer groove on the upper surface of a lower layer die, and pouring high polymer pouring liquid into the lower layer groove; a bolt of the bolt and nut suite penetrates through the lower layer positioning hole and the first middle layer positioning hole and is fastened by a nut;
secondly, placing the metal copper mesh in a middle layer groove in a middle layer die, and pouring high molecular pouring liquid into the middle layer groove; a bolt of the bolt and nut suite penetrates through the upper layer positioning hole and the second middle layer positioning hole and is fastened by a nut;
thirdly, pouring high molecular pouring liquid into the upper cavity;
and fourthly, after solidification, obtaining a composite damping material sample.
The utility model discloses a composite damping material's forming die can arrange the pouring liquid material of different compositions in a flexible way, prepares the combined material of complicated combination. When the shapes of the cavities are different, test sample pieces with different shapes can be prepared at the same time; the metal net can be well fixed between the two layers of composite materials by the grooves between the layers, and the metal net does not settle or deviate and is accurate in position. The utility model discloses a combined damping material's forming die's layered design, independent assortment also accord with the principle of saving, change the middle level mould of different thickness, can obtain the combined material appearance piece of different specific dimensions, when any some mould damages, only change the damage part can, reduced the input of mould development, also fully realized the recycling to the resource simultaneously.
Drawings
FIG. 1 is a schematic structural view of a forming mold for composite damping material of the present invention;
fig. 2 is a schematic structural view of the lower mold 1;
fig. 3 is a schematic structural view of the middle layer mold 2;
fig. 4 is a schematic structural view of the upper mold 3;
in the figure:
1 is a lower-layer die, 1-1 is a bottom cavity, 1-2 is a lower-layer groove, and 1-3 is a lower-layer positioning hole;
2 is a middle layer die, 2-1 is a middle cavity, 2-2 is a middle layer groove, 2-3 is a first middle layer positioning hole, and 2-4 is a second middle layer positioning hole;
3 is an upper layer die, 3-1 is an upper cavity, and 3-2 is an upper layer positioning hole.
Detailed Description
The first embodiment is as follows: (refer to fig. 1, 2, 3 and 4) the forming mold of the composite damping material of the present embodiment includes a lower mold 1, a middle mold 2, an upper mold 3 and a locking device;
wherein, at least one bottom cavity 1-1 is arranged in the lower layer die 1, a lower layer groove 1-2 is arranged on the upper surface of the lower layer die, the bottom cavity 1-1 is positioned in the area covered by the lower layer groove 1-2, and the lower layer groove 1-2 arranged on the upper surface is used for positioning and fixing the metal mesh; arranging lower layer positioning holes 1-3 on the edge of the lower layer die 1; the bottom cavity 1-1 is blind;
at least one middle cavity 2-1 is arranged in the middle layer die 2, and the position of the middle cavity 2-1 corresponds to the position of the bottom cavity 1-1; a middle layer groove 2-2 is arranged on the upper surface of the middle layer die 2, and a middle cavity 2-1 is positioned in an area covered by the middle layer groove 2-2; arranging a first middle layer positioning hole 2-3 and a second middle layer positioning hole 2-4 on the edge of the middle layer die 2; the middle cavity 2-1 is a through type;
the positions of the lower layer positioning holes 1-3 correspond to the positions of the first middle layer positioning holes 2-3;
at least one upper cavity 3-1 is arranged in the upper-layer die 3, and the position of the upper cavity 3-1 corresponds to the position of the middle cavity 2-1; an upper layer positioning hole 3-2 is arranged at the edge of the upper layer die 3; the upper cavity 3-1 is a through type;
the upper layer positioning hole 3-2 corresponds to the second middle layer positioning hole 2-4.
The second embodiment is as follows: the first difference between the present embodiment and the specific embodiment is: the locking device is a bolt and nut suite, a bolt penetrates through the lower layer positioning hole 1-3 and the first middle layer positioning hole 2-3 and is fastened by a nut, and a bolt penetrates through the upper layer positioning hole 3-2 and the second middle layer positioning hole 2-4 and is fastened by a nut. The rest is the same as the first embodiment.
In the embodiment, the bolts of the bolt and nut suite penetrate through the lower layer positioning holes 1-3 and the first middle layer positioning holes 2-3 and are fastened by nuts, so that the lower layer die 1 and the middle layer die 2 can be locked; the bolt passes through the upper layer positioning hole 3-2 and the second middle layer positioning hole 2-4 and is fastened by the nut, the upper layer die 1 and the middle layer die 2 can be locked, so that the upper layer die, the middle layer die and the lower layer die are combined into a whole, and a whole large cavity is formed in the upper layer die, the middle layer die and the lower layer die corresponding to an original die cavity.
The third concrete implementation mode: the difference between the first embodiment and the second embodiment is that the bottom cavity 1-1, the middle cavity 2-1 and the upper cavity 3-1 are cylindrical or prismatic. The other is the same as in the first or second embodiment.
The fourth concrete implementation mode: the difference between this embodiment and one of the first to third embodiments is that the cross-sectional shapes and sizes of the bottom chamber 1-1, the middle chamber 2-1 and the upper chamber 3-1 are the same. The others are the same as in one of the first to third embodiments.
The fifth concrete implementation mode: the difference between the first embodiment and the fourth embodiment is that the height of the bottom cavity 1-1 is 50-80% of the thickness of the lower mold 1. The other is the same as one of the first to fourth embodiments.
In this embodiment, the bottom chamber 1-1 is blind, the middle chamber 2-1 and the upper chamber 3-1 are through, and their heights may be the same or different, and are set according to requirements.
The sixth specific implementation mode: the present embodiment is different from one of the first to fifth embodiments in that the lower mold 1 is a crystalline resin material lower mold 1, the middle mold 2 is a crystalline resin material middle mold 2, and the upper mold 3 is a crystalline resin material upper mold 3. The other is the same as one of the first to fifth embodiments.
In the present embodiment, the crystalline resin material is Polytetrafluoroethylene (PTFE).
In the present embodiment, the lower mold 1, the middle mold 2, and the upper mold 3 are made of crystalline resin material, and the surface of the cavity made of crystalline resin material is smooth, so that the composite damping material has good mold release property during molding. The composite damping product does not need to use a release agent in the molding production process, thereby not only reducing the production cost of the product and the pollution to the environment, but also ensuring that the product obtains a bright surface.
The manufacturing method of the lower mold 1, the middle mold 2 and the upper mold 3 made of the crystalline resin material comprises the following steps: the method is characterized in that computer three-dimensional design software is used for drawing and designing structures of a lower layer die 1, a middle layer die 2 and an upper layer die 3 respectively, and then the manufacturing is finished by adopting a CNC (computer numerical control) machining method. The mold cavity produced by the method does not need polishing treatment, and better surface finish is obtained, so that the subsequent processing and testing are more convenient.
The seventh embodiment: the difference between this embodiment and the first to the sixth embodiment is that the number of the middle layer molds 2 is 1 to 10. The other is the same as one of the first to sixth embodiments.
The number of the middle layer dies 2 in the embodiment can be adjusted, so that the number of the metal nets in the composite damping material can be adjusted, and the layer number of the composite damping material part can also be adjusted.
The specific implementation mode is eight: the difference between this embodiment and the first to seventh embodiments is that the cross-sectional shapes of the lower mold 1 and the upper mold 3 are rectangular, and the cross-sectional shape of the middle mold 2 is: the outer shape in plan view after vertically stacking the long sides of the lower mold 1 and the upper mold 3. The other is the same as one of the first to seventh embodiments.
The shape of the section of the middle layer die 2 is convenient for the middle layer die 2 to be respectively connected with the lower layer die 1 and the upper layer die 3.
The beneficial effects of the present invention are verified with the following examples:
example 1: (see attached fig. 1-4) the mold for molding the composite damping material of the present embodiment is composed of a lower mold 1 made of crystalline resin material polytetrafluoroethylene, a middle mold 2 made of polytetrafluoroethylene, an upper mold 3 made of polytetrafluoroethylene having a length × width × height of 260 × 160 × 15mm, and 8 locking devices for titanium bolt and nut sets;
the outer dimension length of the lower layer die 1 is multiplied by the width, the height is multiplied by 260 mm multiplied by 160mm multiplied by 15mm, 9 cylindrical bottom cavities 1-1 with the diameter of 10mm and the height of 10mm are arranged in the lower layer die 1, a lower layer groove 1-2 with the length multiplied by the width, the height multiplied by 110mm multiplied by 2mm is arranged on the upper surface of the lower layer die, the bottom cavity 1-1 is positioned in the area covered by the lower layer groove 1-2, and the upper surface is provided with the lower layer groove 1-2 for positioning and fixing the metal mesh; arranging lower layer positioning holes 1-3 on the edge of the lower layer die 1; the bottom cavity 1-1 is blind;
the external dimension of the middle layer die 2 is obtained by cutting off one corner with length multiplied by width multiplied by height multiplied by 50mm at each of four corners of a block with length multiplied by width multiplied by height multiplied by 260 mm multiplied by 660mm multiplied by 15mm, 9 cylindrical middle cavities 2-1 with diameter of 10mm and height of 13mm are arranged in the middle layer die 2, and the positions of the middle cavities 2-1 correspond to the positions of the bottom cavities 1-1; a middle layer groove 2-2 with length multiplied by width multiplied by height multiplied by 110mm multiplied by 2mm is arranged on the upper surface of the middle layer die 2, and a middle cavity 2-1 is positioned in the area covered by the middle layer groove 2-2; arranging a first middle layer positioning hole 2-3 and a second middle layer positioning hole 2-4 on the edge of the middle layer die 2; the middle cavity 2-1 is a through type;
the positions of the lower layer positioning holes 1-3 correspond to the positions of the first middle layer positioning holes 2-3;
the external dimension of the upper layer die 3 is 260 multiplied by 160mm multiplied by 15mm, 9 cylindrical upper cavities 3-1 with the diameter of 10mm and the height of 15mm are arranged in the upper layer die 3, and the positions of the upper cavities 3-1 correspond to the positions of the middle cavities 2-1; an upper layer positioning hole 3-2 is arranged at the edge of the upper layer die 3; the upper cavity 3-1 is a through type;
the upper layer positioning hole 3-2 corresponds to the second middle layer positioning hole 2-4.
The bolt and nut suite is used for fastening a bolt passing through the lower layer positioning hole 1-3 and the first middle layer positioning hole 2-3 by a nut, so that the lower layer die 1 and the middle layer die 2 can be locked; the bolt passes through the upper layer positioning hole 3-2 and the second middle layer positioning hole 2-4 and is fastened by a nut, so that the upper layer die 1 and the middle layer die 2 can be locked.
The use method of the forming mold of the composite damping material of the embodiment comprises the following steps: placing a metal copper mesh in a lower layer groove 1-2 on the upper surface of a lower layer die, penetrating a bolt of a bolt and nut suite through a lower layer positioning hole 1-3 and a first middle layer positioning hole 2-3, and fastening by using a nut; placing the metal net in a middle layer groove 2-2 in a middle layer die 2, penetrating a bolt of a bolt and nut suite through an upper layer positioning hole 3-2 and a second middle layer positioning hole 2-4 and fastening by a nut; through the operation, the lower layer die 1, the middle layer die 2 and the upper layer die 3 are assembled into a whole, each layer of cavity is combined into a large cavity, a metal net is fixed among each layer, then polymer casting liquid is used for integral casting or different types of casting liquid are used for layered casting, and after solidification, 9 cylindrical composite damping material samples with the diameter of 10mm and the height of 42mm are obtained.
The use method of the forming mold of the composite damping material of the embodiment may further include the following steps:
firstly, placing a metal copper mesh in a lower layer groove 1-2 on the upper surface of a lower layer die, and pouring high molecular pouring liquid into the lower layer groove 1-2; a bolt of the bolt and nut suite penetrates through the lower layer positioning hole 1-3 and the first middle layer positioning hole 2-3 and is fastened by a nut;
secondly, placing the metal copper mesh in a middle layer groove 2-2 in the middle layer die 2, and pouring high molecular pouring liquid into the middle layer groove 2-2; a bolt of the bolt and nut suite penetrates through the upper layer positioning hole 3-2 and the second middle layer positioning hole 2-4 and is fastened by a nut;
thirdly, pouring high molecular pouring liquid into the upper cavity 3-1;
and fourthly, after curing, obtaining 9 cylindrical composite damping material samples with the diameter of 10mm and the height of 42 mm. The sample piece is integrally divided into three layers, the three layers of high polymer materials can be the same or different, and the middle of the sample piece contains 2 layers of metal copper nets.
The forming die of the composite damping material can be flexibly matched with pouring liquid materials with different components to prepare a composite material with complex combination. The metal net can be well fixed between the two layers of composite materials by the grooves between the layers, and the metal net does not settle or deviate and is accurate in position. And 9 cylindrical composite damping material samples are prepared simultaneously, so that the consistency is good.
The layered design and the free combination of the forming die of the composite damping material also accord with the saving principle, the middle layer dies with different thicknesses are replaced, composite material sample pieces with different specific dimensions can be obtained, when any part of dies are damaged, only the damaged part is replaced, the investment of die development is reduced, and meanwhile, the resource reutilization is fully realized.
Claims (7)
1. A forming die for composite damping materials is characterized by comprising a lower die (1), a middle die (2), an upper die (3) and a locking device;
wherein the lower layer die (1) is internally provided with at least one bottom cavity (1-1), the upper surface of the lower layer die is provided with a lower layer groove (1-2), the bottom cavity (1-1) is positioned in the area covered by the lower layer groove (1-2), and the upper surface is provided with the lower layer groove (1-2) for positioning and fixing the metal mesh; arranging a lower layer positioning hole (1-3) on the edge of the lower layer die (1); the bottom cavity (1-1) is blind;
at least one middle cavity (2-1) is arranged in the middle layer die (2), and the position of the middle cavity (2-1) corresponds to the position of the bottom cavity (1-1); a middle layer groove (2-2) is arranged on the upper surface of the middle layer die (2), and the middle cavity (2-1) is positioned in an area covered by the middle layer groove (2-2); a first middle layer positioning hole (2-3) and a second middle layer positioning hole (2-4) are arranged at the edge of the middle layer die (2); the middle cavity (2-1) is through;
the lower layer positioning hole (1-3) corresponds to the first middle layer positioning hole (2-3);
at least one upper cavity (3-1) is arranged in the upper-layer die (3), and the position of the upper cavity (3-1) corresponds to the position of the middle cavity (2-1); an upper layer positioning hole (3-2) is arranged at the edge of the upper layer die (3); the upper cavity (3-1) is through;
the upper layer positioning hole (3-2) corresponds to the second middle layer positioning hole (2-4).
2. The mold for molding a composite damping material as claimed in claim 1, wherein the locking device is a bolt and nut assembly, the bolt passes through the lower positioning hole (1-3) and the first middle positioning hole (2-3) and is fastened by a nut, and the bolt passes through the upper positioning hole (3-2) and the second middle positioning hole (2-4) and is fastened by a nut.
3. The forming die of a composite damping material according to claim 1 or 2, characterized in that the bottom cavity (1-1), the middle cavity (2-1) and the upper cavity (3-1) are cylindrical or prismatic.
4. The forming die for composite damping material according to claim 1 or 2, characterized in that the cross-sectional shapes and sizes of the corresponding bottom cavity (1-1), middle cavity (2-1) and upper cavity (3-1) are the same.
5. The mold for molding a composite damping material as claimed in claim 1 or 2, wherein the lower mold (1) is a lower mold (1) made of crystalline resin material, the middle mold (2) is a middle mold (2) made of crystalline resin material, and the upper mold (3) is an upper mold (3) made of crystalline resin material.
6. The forming mold for composite damping material as claimed in claim 1 or 2, wherein the number of the middle layer molds (2) is 1-10.
7. The forming die of composite damping material as claimed in claim 1 or 2, characterized in that the cross section of the lower die (1) and the upper die (3) is rectangular, and the cross section of the middle die (2) is: the long sides of the lower layer die (1) and the upper layer die (3) are vertically stacked together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921305716.7U CN210362134U (en) | 2019-08-13 | 2019-08-13 | Forming die of composite damping material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921305716.7U CN210362134U (en) | 2019-08-13 | 2019-08-13 | Forming die of composite damping material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210362134U true CN210362134U (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921305716.7U Active CN210362134U (en) | 2019-08-13 | 2019-08-13 | Forming die of composite damping material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210362134U (en) |
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2019
- 2019-08-13 CN CN201921305716.7U patent/CN210362134U/en active Active
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