Circular plate structure, electrical appliance and preparation method of circular plate structure

Abstract

The application provides a circular plate structure, an electrical appliance and a preparation method of the circular plate structure. The circular plate structure comprises: a circular plate body, which is cast by a melt; the production material of the melt comprises a glass fiber reinforced material; the circular plate body has a center hole and a grid area arranged around the center hole; a plurality of grids are arranged in the grid area at intervals; a plurality of pouring pieces are arranged on the circular plate body; the pouring piece is provided with a pouring port, a pouring channel and a melt outlet connected in sequence; wherein the plurality of pouring pieces comprise a plurality of main pouring pieces and a plurality of auxiliary pouring pieces; the plurality of main pouring pieces are arranged around the center line of the circular plate body at 360 degrees and are uniformly arranged in the center hole; and the plurality of auxiliary pouring pieces are arranged on the outer circumferential surface of the circular plate body and are arranged around the center line of the circular plate body at 360 degrees, so as to solve the problem that the circular plate structure containing glass fibers in the prior art is prone to irregular deformation during production.

Description

Technical Field

[0001] This invention relates to the field of parts casting technology, and more specifically, to a circular plate structure, an electrical device, and a method for preparing the circular plate structure. Background Technology

[0002] Glass fiber is widely used in the manufacture of reinforced plastics and rubber due to its high tensile strength, good rigidity, high elastic modulus, and corrosion resistance. Adding glass fiber to plastics can significantly improve their heat resistance, increase their melting point, and parts made from plastics containing glass fiber also have higher strength, rigidity, impact resistance, and creep resistance.

[0003] However, glass fibers also exhibit significant fiber orientation and anisotropic shrinkage, both of which affect their applications. The addition of glass fibers restricts the movement of polymer chains within the material, and the distribution and arrangement of the fibers also influence shrinkage, easily leading to irregular deformation of the produced circular plate structures. Furthermore, once the fiber orientation is fixed, this deformation is difficult to correct through processing. Summary of the Invention

[0004] The main objective of this invention is to provide a circular plate structure, an electrical device, and a method for preparing the circular plate structure, in order to solve the problem that irregular deformation easily occurs during the production of circular plate structures containing glass fibers in the prior art.

[0005] To achieve the above objectives, according to a first aspect of the present invention, a circular plate structure is provided, comprising: a circular plate formed by casting a melt, the melt being made of a glass fiber reinforced material; the circular plate having a central hole and a grid area surrounding the central hole, with multiple grids spaced apart within the grid area; and multiple casting elements having a gating inlet, a casting channel, and a melt outlet connected in sequence on each casting element; wherein the multiple casting elements include multiple main casting elements and multiple auxiliary casting elements, the multiple main casting elements being located within the central hole and uniformly arranged at 360 degrees around the center line of the circular plate, and the multiple auxiliary casting elements being disposed on the outer circumferential surface of the circular plate and uniformly arranged at 360 degrees around the center line of the circular plate.

[0006] Furthermore, the projected area of ​​the area where the grid is located on the first plane is S1, and the projected area of ​​the circular plate on the first plane is S2; wherein, S1≥0.5*S2, and the first plane is parallel to the circular plate.

[0007] Furthermore, the diameter of the center hole is D1; ​​where D1≤160mm, and the number of main gating parts is three.

[0008] Furthermore, the main gating area between the main gating component and the center hole is a first rectangle, the length of the first rectangle is a1, and the width of the first rectangle is b1; wherein, a1 = 0.8mm to 2.5mm, and b1 = 0.8mm to 2.5mm.

[0009] Furthermore, the diameter of the center hole is D1; ​​where D1 > 160 mm, and the number of main gating parts is three or five.

[0010] Furthermore, the main gating area between the main gating component and the center hole is a second rectangle, the length of which is a2 and the width of which is b2; wherein, a2 = 1.5mm to 2.5mm and b2 = 0.8mm to 2.5mm.

[0011] Furthermore, the first ends of each main gating component are connected and the connection center of the first ends of each main gating component is located on the center line of the circular plate. The second ends of each main gating component extend in a direction away from the center line of the circular plate. The main gating area is located between two adjacent grids in the circumferential direction of the circular plate.

[0012] Furthermore, the outer diameter of the circular plate is D2; where D2≤400mm, the number of auxiliary gating parts is three; or D2>400mm, the number of auxiliary gating parts is five.

[0013] Furthermore, the auxiliary gating area between the auxiliary gating component and the center hole is a third rectangle, with a length of a3 and a width of b3; where a3 = 1.5mm to 2.5mm and b3 = 0.8mm to 2.5mm.

[0014] Furthermore, the length of each grid is L; wherein L≤75mm; and / or the height of each grid is H; wherein H≥6mm; and / or the width of each grid is B; wherein B≥3mm; and / or the maximum distance B1 between two adjacent grids in the circumferential direction of the circular plate is less than or equal to 10mm, and the minimum distance B2 between two adjacent grids in the circumferential direction of the circular plate is 3mm to 5mm.

[0015] Furthermore, the thickness of the circular plate is T; multiple reinforcing ribs are provided on the circular plate, each reinforcing rib having a height of a4 and a width of b4; wherein a4 = 3T to 10T, and b4 = 0.3T to 0.45T.

[0016] Furthermore, the multiple reinforcing ribs include connected annular reinforcing ribs and multiple strip reinforcing ribs, with the multiple strip reinforcing ribs spaced apart around the center line of the circular plate.

[0017] According to a second aspect of the present invention, an electrical device is provided, comprising the above-described circular plate structure.

[0018] According to a third aspect of the present invention, a method for preparing a circular plate structure is provided, applicable to the above-described circular plate structure. The method for preparing the circular plate structure includes: placing a plurality of main gating components and a plurality of auxiliary gating components in a mold; controlling the opening of the gates of the plurality of main gating components and calculating a first opening duration for the corresponding gates; when the first opening duration is equal to a first predetermined duration, controlling the opening of the gates of the plurality of auxiliary gating components and calculating a second opening duration for the corresponding gates; when the second opening duration is equal to a second predetermined duration, controlling the closing of the gates of the plurality of main gating components and the gates of the plurality of auxiliary gating components.

[0019] Applying the technical solution of this invention, the circular plate structure of this invention includes: a circular plate, which is formed by casting melt, the melt being made of glass fiber reinforced material; the circular plate having a central hole and a grid area surrounding the central hole, with multiple grids spaced apart within the grid area; and multiple casting elements, each casting element having a sequentially connected inlet, casting channel, and melt outlet; wherein the multiple casting elements include multiple main casting elements and multiple auxiliary casting elements, the multiple main casting elements being located within the central hole and uniformly arranged around the center line of the circular plate, and the multiple auxiliary casting elements being disposed on the outer circumferential surface of the circular plate and uniformly arranged around the center line of the circular plate. In this way, the plate structure of the present invention, by setting multiple main inlets and multiple auxiliary inlets and controlling the opening and closing time of the inlet of each inlet, avoids the phenomenon of irregular warping deformation of the circular plate structure caused by the disordered orientation of the glass fiber reinforced material, so that the circular plate structure can achieve a uniform shrinkage effect in all directions, and solves the problem that irregular deformation is easy to occur in the production of circular plate structures containing glass fibers in the prior art. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0021] Figure 1 A schematic diagram of an embodiment of the circular plate structure according to the present invention, including a gating element, is shown in one direction.

[0022] Figure 2 It shows Figure 1 A schematic diagram of the circular plate structure shown in another direction;

[0023] Figure 3 It shows Figure 1 A top view of the circular plate structure shown;

[0024] Figure 4 It shows Figure 1 A bottom view of the circular plate structure shown;

[0025] Figure 5 It shows Figure 3 The circular plate structure shown is a cross-sectional view along the KK direction;

[0026] Figure 6 It shows Figure 5 A magnified view of the circular plate structure shown at point E;

[0027] Figure 7 It shows Figure 5 A magnified view of the circular plate structure shown at point F;

[0028] Figure 8 It shows Figure 3 The circular plate structure shown is a cross-sectional view along the JJ direction;

[0029] Figure 9 It shows Figure 8 A magnified view of the circular plate structure shown at point G;

[0030] Figure 10 It shows Figure 1 The diagram shows a circular plate structure in one direction, excluding the gating system.

[0031] Figure 11 It shows Figure 10 A schematic diagram of the circular plate structure shown in another direction;

[0032] Figure 12 It shows Figure 10 A top view of the circular plate structure shown;

[0033] Figure 13 It shows Figure 10 A bottom view of the circular plate structure shown;

[0034] Figure 14 It shows Figure 12 A cross-sectional view of the circular plate structure shown in the CC direction;

[0035] Figure 15 It shows Figure 14 A magnified view of the circular plate structure at point D.

[0036] The above figures include the following reference numerals:

[0037] 1. Circular plate; 11. Grille; 12. Center hole;

[0038] 2. Gating system; 20. Gating gate; 21. Main gating system; 22. Auxiliary gating system;

[0039] 3. Reinforcing rib; 31. Circular reinforcing rib; 32. Circular reinforcing rib. Detailed Implementation

[0040] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] like Figures 1 to 15 As shown, the present invention provides a circular plate structure, comprising: a circular plate 1, which is formed by casting melt, the melt being made of glass fiber reinforced material; the circular plate 1 having a central hole 12 and a grid area surrounding the central hole 12, with multiple grids 11 spaced apart within the grid area; and multiple casting elements 2, each casting element 2 having a sequentially connected inlet 20, a casting channel, and a melt outlet; wherein the multiple casting elements 2 include multiple main casting elements 21 and multiple auxiliary casting elements 22, the multiple main casting elements 21 being located within the central hole 12 and uniformly arranged at 360 degrees around the center line of the circular plate 1, and the multiple auxiliary casting elements 22 being disposed on the outer circumferential surface of the circular plate 1 and uniformly arranged at 360 degrees around the center line of the circular plate 1.

[0042] In this way, the plate structure of the present invention, by setting multiple main inlet 21 and multiple auxiliary inlet 22, and controlling the opening and closing time of the inlet 20 of each inlet 2, avoids the phenomenon of irregular warping deformation of the circular plate structure caused by the disordered orientation of the glass fiber reinforced material, so that the circular plate structure can achieve a uniform shrinkage effect in all directions, and solves the problem that irregular deformation is easy to occur in the production of the circular plate structure containing glass fiber in the prior art.

[0043] Specifically, the melt is in a heated and molten state, and the materials used to make the melt include plastic raw materials and glass fiber reinforced materials.

[0044] Due to the friction and shear forces exerted by the screw, nozzle, runner, and gate during the melt flow process, local viscosity differences occur, which in turn damages the interface layer on the glass fiber surface. The lower the melt viscosity, the greater the impact of internal residual stress on the glass fiber reinforcement during injection molding, making it more likely to cause dimensional changes in the molded product. Therefore, the thermal expansion coefficients of the melt containing both plastic raw materials and glass fiber reinforcement differ from those of the melt containing only plastic. During heating or cooling, the different rates of dimensional change and the mismatch in thermal expansion can lead to product deformation when the temperature changes. Our solution ensures that the melt uniformly fills the entire mold cavity, reduces runner resistance loss and uneven flow paths, effectively reduces the shear stress and shear rate experienced by the melt during mold cavity filling, helps reduce internal residual stress, and thus reduces the risk of product deformation. Furthermore, it allows for more precise control of the melt filling speed and method, ensuring the consistency of the glass fiber orientation.

[0045] Preferably, the projected area of ​​the area where the grille 11 is located on the first plane is S1, and the projected area of ​​the circular plate 1 on the first plane is S2; wherein, S1≥0.5*S2, and the first plane is parallel to the circular plate 1.

[0046] In one embodiment of the present invention, the diameter of the central hole 12 is D1; ​​wherein, D1≤160mm, and the number of main gating components 21 is three.

[0047] Specifically, the main gating area between the main gating component 21 and the center hole 12 is a first rectangle, the length of the first rectangle is a1, and the width of the first rectangle is b1; wherein, a1 = 0.8mm to 2.5mm, and b1 = 0.8mm to 2.5mm.

[0048] In another embodiment of the present invention, the diameter of the central hole 12 is D1; ​​wherein, D1 > 160 mm, and the number of main gating elements 21 is three or five.

[0049] Specifically, the main gating area between the main gating component 21 and the center hole 12 is a second rectangle, the length of the second rectangle is a2, and the width of the second rectangle is b2; wherein, a2 = 1.5mm to 2.5mm, and b2 = 0.8mm to 2.5mm.

[0050] The first ends of each main gating member 21 of the present invention are connected and the connection center of the first end of each main gating member 21 is located on the center line of the circular plate 1. The second ends of each main gating member 21 extend in a direction away from the center line of the circular plate 1. The main gating area is located between two adjacent grids 11 in the circumferential direction of the circular plate 1.

[0051] Optionally, the outer diameter of the circular plate 1 is D2; wherein, D2≤400mm, the number of auxiliary gating parts 22 is three; or D2>400mm, the number of auxiliary gating parts 22 is five.

[0052] like Figure 9 As shown, the auxiliary gating area between the auxiliary gating component 22 and the central hole 12 is a third rectangle, with a length of a3 and a width of b3; where a3 = 1.5mm to 2.5mm and b3 = 0.8mm to 2.5mm.

[0053] like Figure 12 As shown, the length of each grid 11 is L; where L≤75mm; and / or the height of each grid 11 is H; where H≥6mm; and / or the width of each grid 11 is B; where B≥3mm; and / or the maximum distance B1 between two adjacent grids 11 in the circumferential direction of the circular plate 1 is less than or equal to 10mm, and the minimum distance B2 between two adjacent grids 11 in the circumferential direction of the circular plate 1 is 3mm to 5mm.

[0054] Specifically, the multiple grilles 11 are divided into a first grille group and a second grille, which are spaced apart along the direction away from the center line of the circular plate 1. The first grille group includes multiple first grilles spaced apart along the circumferential direction of the circular plate 1, and the distance between two adjacent first grilles gradually decreases along the direction away from the center line of the circular plate 1, with the minimum distance B2 between two adjacent first grilles being 3mm to 5mm. The second grille group includes multiple second grilles spaced apart along the circumferential direction of the circular plate 1, and the distance between two adjacent second grilles gradually decreases along the direction away from the center line of the circular plate 1, with the maximum distance B1 between two adjacent second grilles being less than or equal to 10mm.

[0055] like Figure 7 As shown, the thickness of the circular plate 1 is T; multiple reinforcing ribs 3 are provided on the circular plate 1, the height of each reinforcing rib 3 is a4, and the width of each reinforcing rib 3 is b4; wherein, a4 = 3T to 10T, b4 = 0.3T to 0.45T, so as to improve the deformation resistance of the circular plate structure.

[0056] Specifically, the multiple reinforcing ribs 3 include connected annular reinforcing ribs 31 and multiple strip reinforcing ribs 32, with the multiple strip reinforcing ribs 32 spaced apart around the center line of the circular plate 1.

[0057] The present invention provides an electrical device comprising the above-described circular plate structure.

[0058] The present invention also provides a method for preparing a circular plate structure, applicable to the above-mentioned circular plate structure. The method for preparing the circular plate structure includes: placing multiple main gating components 21 and multiple auxiliary gating components 22 in a mold; controlling the opening of the gates 20 of the multiple main gating components 21 and calculating the first opening duration of the corresponding gates 20; when the first opening duration is equal to the first predetermined duration, controlling the opening of the gates 20 of the multiple auxiliary gating components 22 and calculating the second opening duration of the corresponding gates 20; when the second opening duration is equal to the second predetermined duration, controlling the closing of the gates 20 of the multiple main gating components 21 and the gates 20 of the multiple auxiliary gating components 22.

[0059] Specifically, the circular plate structure 1 of the present invention is formed by injecting melt into a plurality of main gating members 21 and a plurality of auxiliary gating members 22.

[0060] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0061] The circular plate structure of the present invention includes: a circular plate 1, which is formed by casting melt, the melt being made of glass fiber reinforced material; the circular plate 1 having a central hole 12 and a grid area surrounding the central hole 12, with multiple grids 11 spaced apart within the grid area; and multiple casting elements 2, each casting element 2 having a sequentially connected inlet 20, a casting channel, and a melt outlet; wherein the multiple casting elements 2 include multiple main casting elements 21 and multiple auxiliary casting elements 22, the multiple main casting elements 21 being located within the central hole 12 and uniformly arranged around the center line of the circular plate 1 at 360 degrees, and the multiple auxiliary casting elements 22 being disposed on the outer circumferential surface of the circular plate 1 and uniformly arranged around the center line of the circular plate 1 at 360 degrees. In this way, the plate structure of the present invention, by setting multiple main inlet 21 and multiple auxiliary inlet 22, and controlling the opening and closing time of the inlet 20 of each inlet 2, avoids the phenomenon of irregular warping deformation of the circular plate structure caused by the disordered orientation of the glass fiber reinforced material, so that the circular plate structure can achieve a uniform shrinkage effect in all directions, and solves the problem that irregular deformation is easy to occur in the production of the circular plate structure containing glass fiber in the prior art.

[0062] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0063] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0064] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0065] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0066] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0067] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for preparing a circular plate structure, characterized in that, Applicable to circular plate structures, the circular plate structure comprising: A circular plate (1) is formed by casting a melt, the melt being made of glass fiber reinforced material. The circular plate (1) has a central hole (12) and a grid area surrounding the central hole (12). Multiple grids (11) are spaced apart in the grid area. Multiple gating components (2) are provided with a gating port (20), a gating channel and a melt outlet connected in sequence; wherein, the multiple gating components (2) include multiple main gating components (21) and multiple auxiliary gating components (22), the multiple main gating components (21) are located in the central hole (12) and are evenly arranged in 360 degrees around the center line of the circular plate (1), and the multiple auxiliary gating components (22) are provided on the outer peripheral surface of the circular plate (1) and are evenly arranged in 360 degrees around the center line of the circular plate (1); The diameter of the central hole (12) is D1; ​​when D1≤160mm, the main gating area between the main gating component (21) and the central hole (12) is a first rectangle, the length of the first rectangle is a1, and the width of the first rectangle is b1; wherein, a1=0.8mm to 2.5mm, b1=0.8mm to 2.5mm; When D1 > 160mm, the main gating area between the main gating component (21) and the center hole (12) is a second rectangle, the length of the second rectangle is a2, and the width of the second rectangle is b2; wherein, a2 = 1.5mm to 2.5mm, b2 = 0.8mm to 2.5mm; the auxiliary gating area between the auxiliary gating component (22) and the circular plate (1) is a third rectangle, the length of the third rectangle is a3, and the width of the third rectangle is b3; wherein, a3 = 1.5mm to 2.5mm, b3 = 0.8mm to 2.5mm; The first ends of each of the main gating components (21) are connected to each other and the connection center of the first ends of each of the main gating components (21) is located on the center line of the circular plate (1). The second ends of each of the main gating components (21) extend in a direction away from the center line of the circular plate (1). The main gating area is located between two adjacent grids (11) in the circumferential direction of the circular plate (1). The method for preparing the circular plate structure includes: The plurality of main gating parts (21) and the plurality of auxiliary gating parts (22) are all placed in the mold; Control the opening of the gates (20) of the plurality of main gates (21) and calculate the first opening duration of the corresponding gates (20); When the first opening duration is equal to the first predetermined duration, the gate (20) of the plurality of auxiliary gating components (22) is controlled to open and the second opening duration of the corresponding gate (20) is calculated; When the second opening duration is equal to the second predetermined duration, the gates (20) of the plurality of main gates (21) and the gates (20) of the plurality of auxiliary gates (22) are both closed.

2. The method for preparing a circular plate structure according to claim 1, characterized in that, The area of ​​the region where the grille (11) is located on the first plane is S1, and the area of ​​the circular plate (1) on the first plane is S2; wherein, S1≥0.5*S2, and the first plane is parallel to the circular plate (1).

3. The method for preparing a circular plate structure according to claim 1, characterized in that, The diameter of the central hole (12) is D1; ​​wherein, D1≤160mm, and the number of the main gating components (21) is three.

4. The method for preparing a circular plate structure according to claim 1, characterized in that, The diameter of the central hole (12) is D1; ​​wherein, D1 > 160 mm, and the number of the main gating components (21) is three or five.

5. The method for preparing a circular plate structure according to claim 4, characterized in that, The outer diameter of the circular plate (1) is D2; wherein, D2≤400mm, the number of auxiliary gating components (22) is three; D2 > 400mm, and the number of auxiliary gating components (22) is five.

6. The method for preparing a circular plate structure according to claim 5, characterized in that, The length of each of the aforementioned grilles (11) is L; wherein L≤75mm; and / or The height of each of the aforementioned grilles (11) is H; wherein H ≥ 6 mm; and / or The width of each of the aforementioned grilles (11) is B; wherein B ≥ 3 mm; and / or The maximum distance B1 between two adjacent grilles (11) in the circumferential direction of the circular plate (1) is less than or equal to 10 mm, and the minimum distance B2 between two adjacent grilles (11) in the circumferential direction of the circular plate (1) is 3 mm to 5 mm.

7. The method for preparing a circular plate structure according to claim 1, characterized in that, The thickness of the circular plate (1) is T; the circular plate (1) is provided with a plurality of reinforcing ribs (3), the height of each reinforcing rib (3) is a4, and the width of each reinforcing rib (3) is b4; wherein, a4 = 3T to 10T, b4 = 0.3T to 0.45T.

8. The method for preparing a circular plate structure according to claim 7, characterized in that, The plurality of reinforcing ribs (3) include connected annular reinforcing ribs (31) and a plurality of strip reinforcing ribs (32), which are spaced apart around the center line of the circular plate (1).

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