CN111331775A - Television base, manufacturing method thereof and television - Google Patents
Television base, manufacturing method thereof and television Download PDFInfo
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- CN111331775A CN111331775A CN202010264940.7A CN202010264940A CN111331775A CN 111331775 A CN111331775 A CN 111331775A CN 202010264940 A CN202010264940 A CN 202010264940A CN 111331775 A CN111331775 A CN 111331775A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 238000002347 injection Methods 0.000 claims abstract description 51
- 239000007924 injection Substances 0.000 claims abstract description 51
- 239000012768 molten material Substances 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims description 28
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 5
- 238000000638 solvent extraction Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 89
- 238000010586 diagram Methods 0.000 description 14
- 239000000243 solution Substances 0.000 description 11
- 238000013461 design Methods 0.000 description 10
- 238000001746 injection moulding Methods 0.000 description 10
- 238000004458 analytical method Methods 0.000 description 7
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- 239000000463 material Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 5
- 238000005728 strengthening Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000000071 blow moulding Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 206010022000 influenza Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1703—Introducing an auxiliary fluid into the mould
- B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/22—Undercarriages with or without wheels with approximately constant height, e.g. with constant length of column or of legs
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- Engineering & Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The application discloses a manufacturing method of a television base, which comprises the following steps: obtaining a mould of a television base; injecting the molten material into the cavity of the mold; injecting high-pressure gas into the die cavity in the edge area of the die; driving high-pressure gas to flow to replace the molten material to form a base cavity; in another scheme, high-pressure gas is injected into the mold cavity in the central area of the mold; driving high-pressure gas to flow to replace the molten material to form a base cavity; in a preferable scheme, a gas injection port is respectively arranged in the central area of the mold and the position area of the bracket close to each base, and high-pressure gas is injected into the mold cavity corresponding to the bracket; and driving high-pressure gas to flow in the die cavity corresponding to the support to replace the molten material to form the cavity of the support of the base. The television base manufactured by the manufacturing method can obviously improve the structural strength of the base on the premise of not increasing the sectional area of the base, and solves the problem of insufficient strength of the base.
Description
Technical Field
The application relates to the technical field of televisions, in particular to a television base. In addition, the application also relates to a manufacturing method of the television base. Furthermore, the application also relates to a television.
Background
The installation mode of the existing flat-panel television generally adopts a wall-mounted type and a base-placed type, the structural design scheme of the base is particularly important for the display device which adopts the base-placed type installation, and the base determines the overall reliability and the attractive appearance of the display device. The base is divided into a single-leg base and a double-leg base according to the number of the interface fixing units of the base and the display device. The stability and the reliability of the base to the support of the display device are examined, and the area of the contact point continuous range of the base and the ground has a certain proportional relation with the size and the weight of the whole machine. Correspondingly, the double-leg base is two independent individual units, and no connecting piece is arranged between the double-leg base and the two individual units, so that the double-leg base can meet the requirements of the stability and reliability of the whole machine and can realize low cost easily, and the double-leg base is more popular with continuous upgrading of market product competition.
The existing base of the flat-panel television or the display generally adopts a plastic base. There are currently two main techniques for the manufacture of plastic bases: blow molding technology and injection molding technology. The blow molding technology is limited by the process and materials, has poor oil resistance, low bending strength and bending modulus, and is difficult to apply to large-size televisions with heavy weight.
The injection molding technology can adopt materials with high strength and high modulus, and the injection molding technology also has the characteristics of rich part models, high production efficiency and the like. Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a television base according to the prior art; fig. 2 is a cross-sectional view of the television mount of fig. 1. As shown in fig. 2, the tv chassis 100 is generally in an inverted V-shape or U-shape, and has a reinforcing rib 101 inside. In such a base structure, generally, an increased wall thickness or reinforcing ribs are used to secure the overall strength, but the wall thickness and the reinforcing ribs 101 of the base 100 cannot be increased without limitation. The large-size television set has high requirements on the strength of the base due to heavy weight, and the requirements cannot be met by simply increasing the wall thickness of the base and reinforcing ribs. This limits the expansion of the injection molded base for large-sized televisions.
Disclosure of Invention
The technical problem to be solved by the application is to provide a manufacturing method of a television base, and the television base manufactured by the manufacturing method can obviously improve the structural strength of the base on the premise of not increasing the sectional area of the base and the cost, and solve the problem of insufficient strength of the base. In addition, another technical problem to be solved by the present application is to provide a television base. Furthermore, another technical problem to be solved by the present application is to provide a television set including the base.
In a first embodiment, to solve the above technical problem, the present application provides a method for manufacturing a television base, including:
obtaining a mould of a television base;
injecting the molten material into the cavity of the mold;
injecting high-pressure gas into the die cavity in the edge area of the die;
the high pressure gas is driven to flow to displace the molten material to form the cavity of the base.
Optionally, the television base is a double-support base, the mold is a double-support mold, and an included angle between two mold supports is an obtuse angle;
the step of injecting high pressure gas into the cavity in the edge area of the mold includes:
injecting high-pressure gas into a die cavity of a bracket die in the edge area of a die bracket to replace molten materials to form a cavity of a base bracket;
the step of driving the high pressure gas to flow to displace the molten material to form the cavity of the base includes:
driving high-pressure gas to replace molten materials from the current die cavity of the bracket die through the die cavity in the center of the die to form a cavity in the middle part of the base; and the high-pressure gas is driven to flow to the die cavity of the bracket die on the other side to replace the molten material, so that the cavity of the base bracket on the other side is formed.
In order to solve the above technical problem, the present application further provides a television base manufactured by the manufacturing method in the above first embodiment, which includes a base middle portion, at least two brackets are connected to the base middle portion,
the end of the support is provided with a gas injection part, and the support is provided with a support cavity formed by the gas injection part.
Optionally, the base middle portion has a base middle portion cavity in communication with the cradle cavity.
The following techniques provide the technical effects of the above embodiments:
high-pressure gas is injected into the die cavity at the edge position of the base supporting leg of the die, the gas flows to low-pressure and high-temperature areas of the product along the direction with the minimum resistance, and the cross section of the thick-wall area is hollowed by replacing molten plastic, so that a cavity form is formed. So that after the cavity is formed in one leg on the proximal side, the cavity is formed in the other leg. The base with the cavity can obviously improve the structural strength of the base on the premise of not increasing the sectional area and the cost, and has stable supporting performance.
In a second embodiment, to solve the above technical problem, the present application provides a method for manufacturing a tv base, including:
obtaining a mould of a television base;
injecting the molten material into the cavity of the mold;
injecting high-pressure gas into the die cavity in the central area of the die;
the high pressure gas is driven to flow to displace the molten material to form the cavity of the base.
Optionally, the television base is a double-support base, the mold is a double-support mold, and an included angle between two mold supports is an obtuse angle;
the step of injecting high-pressure gas into the cavity in the central region of the mold includes:
injecting high-pressure gas into the mold cavity in the central area of the mold to replace the molten material to form a cavity in the middle part of the base;
the step of driving the high pressure gas to flow to displace the molten material to form the cavity of the base includes:
and driving high-pressure gas to flow to the die cavities of the bracket dies on the two sides to replace the molten material, so that the cavities of the base brackets on the two sides are respectively formed.
In order to solve the above technical problem, the present application further provides a television base manufactured by the manufacturing method in the second embodiment, which includes a base middle portion, at least two brackets are connected to the base middle portion,
the base middle part is provided with a gas injection part, and the base middle part is provided with a cavity of the base middle part formed by the gas injection part.
Optionally, the bracket portion has a bracket cavity in communication with the cavity in the base middle portion.
The technical effects of this embodiment are described as follows:
high pressure gas is injected into the cavity in the central region of the mold, the gas flows to low pressure and high temperature regions of the product along the direction of least resistance, and the cross section of the thick-walled region is hollowed by replacing the molten plastic, thereby forming a cavity shape. The base with the cavity can obviously improve the structural strength of the base on the premise of not increasing the sectional area and the cost, and has stable supporting performance.
In a third embodiment, to solve the above technical problem, the present application provides a method for manufacturing a television base, including:
obtaining a mould of a television base;
injecting the molten material into the cavity of the mold;
respectively arranging a gas injection port in the central area of the mold and the position area of the bracket close to each base, and respectively injecting high-pressure gas into the mold cavity corresponding to the bracket;
and driving high-pressure gas to flow in the die cavity corresponding to the support to replace the molten material to form the cavity of the support of the base.
Optionally, the television base is a double-support base, the mold is a double-support mold, and an included angle between two mold supports is an obtuse angle;
the central area of the mould and the position area of the bracket close to each base are respectively provided with a gas injection port, and high-pressure gas is injected into the mould cavity corresponding to the bracket, and the method comprises the following steps:
two gas injection ports are arranged and respectively correspond to the die cavities of the two brackets; and a reinforcing rib is arranged between the two gas injection ports to separate the gas path.
Optionally, the step of driving the high-pressure gas to flow in the mold cavity corresponding to the support to displace the molten material to form the cavity of the support of the base includes:
high-pressure gas is driven to flow in the corresponding mold cavity of the stent and move to the end region of the mold cavity of the stent, so that the cavities of the stent are uniformly distributed in the whole stent.
In order to solve the above technical problem, the present application further provides a television base manufactured by the manufacturing method in the third embodiment, which includes a base middle portion, at least two brackets are connected to the base middle portion,
the middle part of the base is provided with gas injection parts with the same number as the brackets, and the gas injection parts are close to the corresponding brackets;
the bracket is provided with a bracket cavity formed by the gas injection part.
The technical effects of the above embodiments are described as follows:
in the above embodiment, since a plurality of gas-injection ports are provided, and the number of gas-injection ports corresponds to the number of legs, and the respective gas-injection ports are isolated by the reinforcing ribs. The effect of strengthening rib plays the effect that improves intensity on the one hand, in addition, isolated two gas injection positions above all, avoids mutual influence. This solution thus enables one leg to have one cavity, and the cavities are evenly distributed inside the corresponding leg. Thereby further improving the structural strength of the entire base.
That is, in the third embodiment, the change of the cross-sectional wall thickness is utilized, and the double-gas-assisted structure is adopted to optimize the air passage layout, so that the air passage flow scheme is simplified and is convenient to control. This scheme adopts independent two air flue structures to adopt the strengthening rib design to separate two air flues between two income gas pockets, make the cavity that the air flue formed in needs position, and the wall thickness is even reasonable, realizes the design target.
Finally, in order to solve the above technical problem, the present application further provides a television, including a television display; the television set further comprises the television base in any one of the above embodiments, and the television display is supported on the television base.
The technical effects are the same as above, and are not described herein again.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a television base according to the prior art;
FIG. 2 is a cross-sectional view of the television mount of FIG. 1;
FIG. 3 is a schematic view of the base of the present application in a loaded state;
FIG. 4 is a simplified mechanical analysis diagram of the base of FIG. 3 with a load applied thereto, shown as a shear beam;
FIG. 5 is a schematic diagram of the parameter dimensions of the television base of FIG. 2;
FIG. 6 is a diagram illustrating exemplary parameter dimensions of a cross-section of a television base according to an embodiment of the present application;
FIG. 7 is a schematic structural diagram of a television base according to a first embodiment of the present application;
FIG. 8 is a schematic structural diagram of a television base according to a second embodiment of the present application;
FIG. 9 is a schematic structural diagram of a television base according to a third embodiment of the present application;
fig. 10 is a bottom view of the television base of fig. 9.
Wherein, the corresponding relationship between the component names and the reference numbers in fig. 1 to 2 is:
base 100, strengthening rib 101.
The correspondence between the component names and reference numerals in fig. 3 to 10 is:
a base 200, a base middle part 201, a bracket 202, a cavity 203, a gas injection part 204 and a reinforcing rib 205.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
In some of the flows described in the present specification and claims and in the above figures, a number of operations are included that occur in a particular order, but it should be clearly understood that these operations may be performed out of order or in parallel as they occur herein, with the order of the operations being indicated as 101, 102, etc. merely to distinguish between the various operations, and the order of the operations by themselves does not represent any order of performance. Additionally, the flows may include more or fewer operations, and the operations may be performed sequentially or in parallel. It should be noted that, the descriptions of "first", "second", etc. in this document are used for distinguishing different messages, devices, modules, etc., and do not represent a sequential order, nor limit the types of "first" and "second" to be different.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and 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 following first introduces the main technical principle analysis of the present application:
referring to fig. 3 to 6, fig. 3 is a schematic view illustrating a state in which a load is applied to a base according to the present application; FIG. 4 is a simplified mechanical analysis diagram of the base of FIG. 3 with a load applied thereto, shown as a shear beam; FIG. 5 is a schematic diagram of the parameter dimensions of the television base of FIG. 2; fig. 6 is a schematic diagram of parameter dimensions of a cross section of a television base according to an embodiment of the present application.
The stress of the base is mainly the load generated by the self weight of the television, and the available base has the main parameters of the deformation resistance: the W (deflection) value is measured, and the parameter is strongly related to the section shape of the part. The problem that the scheme exists at present, mainly be that the cross-sectional form of base receives injection molding process restriction, can only increase strong W value through wall thickness and strengthening rib. However, the wall thickness and the reinforcing ribs cannot be increased without limit due to the limitation of various factors such as the cost, the shape, the volume and the injection molding process of parts, so that the current shape of the base cannot meet the strength requirement.
As shown in fig. 3, an upper dummy load is applied to the base, which is directed vertically downward.
As shown in fig. 4, the vertical downward load force F is represented; w represents the deflection of the base and represents the value of the stressed bending deformation of the base, and the default value is the maximum deformation value of the center point of the simply supported beam; l represents the span of the base, namely the distance between two end points of the simply supported beam of the stress model.
As shown in fig. 5, in this prior art mount, t denotes the mount wall thickness; k represents a cross-sectional width; h1 denotes the centroid to cross section top distance; h2 denotes the centroid to cross-sectional floor distance; h represents a cross-sectional height.
As shown in fig. 6, t represents the base wall thickness; k represents a cross-sectional width; h represents a cross-sectional height.
For ease of understanding and for convenience of the text, the parameters are specified and defined in the following table:
next, according to fig. 3 to 6, technical analysis is performed in combination with the above parameters:
the deflection value of the middle part of the simply supported beam at the maximum deformation position can be expressed by a formula 1:
W＝FL3/48EI ⑴；
f, L, E, etc. are mainly related to the weight of TV set, inclination test standard, selected material, etc. and have small relevance to the design scheme of base section shape. The invention mainly adopts a new base section form to increase the base integrity and reduce W, so how to increase I is the key. The cross-sectional shape of the cavity is the best choice by theoretical analysis. The design of the new base section is shown in figure 6. The W-contrast of the newly designed cross-section to the normal cross-section is analyzed by a mathematical model below.
The material bending modulus E is that PA6 fiber material with better mechanical property is selected. The flexural modulus E is 8000 MPa. Considering that the performance of PA6 is reduced by 40% at most after high-temperature and high-humidity water absorption, the value is obtained by taking E as 4800 MPa.
The base load F is the weight of the television set, and once the model specification is determined, this parameter value is basically determined. For example, in the scheme, a 75-inch television base is taken as a research object, the weight of a 75-inch machine is 25-40kg, and the large value is 40kg, namely the load F is approximately equal to 400N; because 2 bases are needed for supporting the television at the same time, the load F of a single base is 200N;
the base span L is the span between the fulcrums of the support legs of the base and can be regarded as the distance between two end points of the simply supported beam of the mechanical model. The method is determined by the complete machine shape of the television and experimental test requirements, generally has little change with the same specification machine type, and can also be regarded as a determined value. Taking L as 380 mm;
the width K and the height H of the section are influenced by the shape, and if the value is too large, the appearance is influenced and the significance is lost. And taking 75 inch model specification and appearance integral modeling, wherein K is 20mm, and H is 25 mm. It must be noted that the base is in fact variable in section, here taking typical values for the maximum stressed area of the section.
The wall thickness t is limited by the base modeling, the material characteristics and the injection molding process, and according to the design experience, t is taken to be 4 mm;
parameter h1Is the distance from the centroid to the top of the cross section, h2Is the centroid to cross-sectional bottom distance, which is closely related to the cross-sectional shape. H1 and h2 of the common section can be obtained by formula 2 and formula 3;
h1＝[2t*H2+(K-2t)*t2]/2(2t*H+(K-2t)*t) ⑵；
h2＝H–h1⑶；
since the parameters are known, the band-inEquations 2 and 3, to obtain h1＝10.5mm，h2＝14.5mm；
The new design section can be changed without considering h due to the form change1And h2These two parameters;
the section inertia moment is the inherent property of the section, and different section shapes I have different calculation models. The common section moment of inertia is shown in equation 4:
I1＝[Kh1 3+2th2 3-(K-2t)(h1-t)3]/3 ⑷；
substituting each parameter value into I1＝1.47E-08m4；
The newly designed section moment of inertia is shown in formula 5:
I2＝[K*H3-(K-2t)*(H-2t)3]⑸；
substituting each parameter value into I2＝2.11E-08m4；
Substituting each parameter value into formula 1, and obtaining the common section W without difficulty1And a newly designed section W2Maximum deflection value at a determined load F-400N:
W1＝FL3/48EI1≈3.9mm；
W2＝FL3/48EI2≈2.7mm；
it is easy to find that: 100% (W)2/W1) About 69%. On the premise of the same specification and the same weight of the base, the flexibility value of the newly designed section is greatly reduced compared with that of the common section, and the strength of the base is obviously improved.
However, due to the limitation of the injection molding process, the newly designed section cannot be obtained by the common injection molding process, and a mold gas-assisted scheme is required. The gas-assisted injection molding process comprises the steps of injecting resin into a mold cavity in a short amount, injecting high-pressure nitrogen into molten plastic in the mold cavity, allowing gas to flow to low-pressure and high-temperature areas of a product along the direction with the minimum resistance, and hollowing out the section of a thick-wall area by replacing the molten plastic to form a cavity shape.
However, the gas-assisted solution has not been precedent on injection molded bases of this type. How to design the air passage is very critical to determine the position of the air needle. Three embodiments are described below.
In a first embodiment, please refer to fig. 7, and fig. 7 is a schematic structural diagram of a television base according to the first embodiment of the present application.
In the first embodiment, the present application provides a method for manufacturing a television base 200, including:
obtaining a mold for a tv chassis 200;
injecting the molten material into the cavity of the mold;
high-pressure gas is injected into the die cavity in the edge area of the die;
the high pressure gas flow is driven to displace the molten material to form the cavity 203 of the base 200.
As shown in fig. 7, high-pressure gas is injected into the cavity at the edge position of the leg of the base 200 of the mold, the gas flows to the low-pressure and high-temperature regions of the product in the direction of least resistance, and the cross section of the thick region is hollowed by replacing the molten plastic, thereby forming a cavity 203. So that after one leg on the proximal side forms the cavity 203, the cavity 203 is formed in the other leg.
Further, in the above-described embodiment, further improvements can be made.
For example, the television base 200 is a double-bracket 202 base 200, the mold is a double-bracket 202 mold, and an included angle between the two mold brackets 202 is an obtuse angle; the base 200 is a so-called double-stand 202 base 200, i.e. a base 200 comprising two legs. In this structure, the step of injecting high-pressure gas into the cavity in the edge region of the mold includes:
injecting high-pressure gas into the mold cavity of a mold 202 of the bracket 202 in the edge area of the bracket 202 to replace molten material, thereby forming a cavity 203 of the bracket 202 of the base 200;
the step of driving the high pressure gas flow to displace the molten material to form the cavity 203 of the base 200 includes:
driving high-pressure gas to replace the molten material from the mold cavity of the current bracket 202 mold through the mold cavity in the center of the mold to form a cavity 203 of the base middle part 201; and the high-pressure gas is driven to flow to the cavity of the mold of the bracket 202 on the other side to replace the molten material, so as to form the cavity 203 of the bracket 202 of the base 200 on the other side.
In this first embodiment, the present application further provides a tv base 200 manufactured by the above method, corresponding to the above method embodiment. Specifically, as shown in fig. 7, a television base 200 includes a base middle portion 201, at least two brackets 202 are connected to the base middle portion 201, a gas injection portion 204 is provided at the end of the bracket 202, and the bracket 202 has a cavity 203 of the bracket 200 formed by the gas injection portion 204. Further, the base middle portion 201 has a cavity 203 of the base middle portion 201 that communicates with the cavity 203 of the holder 200.
It should be noted that the base middle portion 201 is a remaining portion of the two ball-discharging brackets 202, i.e., a middle position between the inverted V brackets 202.
According to the foregoing technical principle analysis, the base 200 having the cavity 203 can significantly improve the structural strength of the base 200 without increasing the sectional area and the cost, and has a stable supporting performance.
The present application also provides a second embodiment. Specifically, please refer to fig. 8, fig. 8 is a schematic structural diagram of a television base according to a second embodiment of the present application.
In the second embodiment, the present application provides a method for manufacturing a television base 200, including:
obtaining a mold for a tv chassis 200;
injecting the molten material into the cavity of the mold;
high-pressure gas is injected into the die cavity in the central area of the die;
the high pressure gas flow is driven to displace the molten material to form the cavity 203 of the base 200.
As shown in fig. 8, the pedestal middle portion 201 of the pedestal 200 is provided with a gas injection portion 204, so that high-pressure gas needs to be injected into the cavity in the corresponding central region of the mold.
As shown in fig. 8, high-pressure gas is injected into the cavity in the central region of the mold, the gas flows in the direction of least resistance to low-pressure and high-temperature regions of the product, and the molten plastic is replaced to cut out the cross section of the thick region, thereby forming a cavity 203.
In the above-described embodiments, further improvements can be made. For example, the television base 200 is a double-bracket 202 base 200, the mold is a double-bracket 202 mold, and an included angle between the two mold brackets 202 is an obtuse angle;
the method comprises the following steps of spraying flower girls on the basis of the structure, and driving high-pressure gas into a mold cavity in the central area of the mold, wherein the method comprises the following steps:
a cavity 203 for forming the base middle portion 201 by injecting high-pressure gas into the cavity in the center region of the mold to displace the molten material;
the step of driving the high pressure gas flow to displace the molten material to form the cavity 203 of the base 200 includes:
the high-pressure gas is driven to flow into the cavities of the molds of the brackets 202 on both sides to displace the molten material, thereby forming the cavities 203 of the brackets 202 of the base 200 on both sides, respectively.
That is, a gas injection portion 204 is provided in a central region of the base 200, and high-pressure gas is injected and then diffused toward the two holders 202 to form cavities 203 corresponding to the two holders 202.
In the first embodiment, the present application further provides a television base 200 manufactured by the above manufacturing method, corresponding to the above manufacturing method.
As shown in fig. 8, a tv base 200 comprises a base middle part 201, at least two brackets 202 are connected to the base middle part 201,
the pedestal intermediate portion 201 is provided with a gas injection portion 204, and the pedestal intermediate portion 201 has a cavity 203 of the pedestal intermediate portion 201 formed by the gas injection portion 204.
Further, the bracket 202 portion has a cavity 203 of the bracket 202 that communicates with a cavity 203 of the base middle portion 201.
According to the foregoing technical principle analysis, the base 200 having the cavity 203 can significantly improve the structural strength of the base 200 without increasing the sectional area and the cost, and has a stable supporting performance.
It should be noted that, in the two embodiments, the structural strength of the base 200 can be significantly improved without increasing the sectional area and increasing the cost, and besides the stable supporting performance, there are some disadvantages.
For example, in the first embodiment, as shown in fig. 7, the air needle is designed to be at the end of the leg of the base 200, due to the shape of the base 200, the thickness of the wall near the air inlet is thin, and the thickness of the wall far from the air inlet is thick, so that the wall thickness of the cross section of the base 200 is not uniform, and the stress capacity at different parts is greatly different, which is not favorable for the overall strength of the base 200.
For example, in the second embodiment, as shown in fig. 8, the air needle is designed in the middle of the shape of the base 200, and the material flow is not completely balanced during injection molding, so that the density is different from place to place. The flow direction of the high-pressure gas filled into the mold cavity is difficult to move according to requirements, the thickness of the local inflation wall of the base 200 is thinned with higher probability, and the other end of the base is solid. Again, the overall strength of the base 200 is less favorable.
In view of the above-mentioned shortcomings, the present application also provides a third embodiment. Specifically, please refer to fig. 9 and 10, fig. 9 is a schematic structural diagram of a television base in a third embodiment of the present application; fig. 10 is a bottom view of the television base of fig. 9.
In the third embodiment, as shown in fig. 9, a method for manufacturing a television base 200 includes:
obtaining a mold for a tv chassis 200;
injecting the molten material into the cavity of the mold;
respectively arranging a gas injection port in the central area of the mold and the position area close to the bracket 202 of each base 200, and respectively injecting high-pressure gas into the mold cavity corresponding to the bracket 202;
the high pressure gas is driven to flow in the corresponding mold cavity of the holder 202 to displace the molten material, thereby forming the cavity 203 of the holder 202 of the base 200.
As shown in fig. 9, as shown in fig. 8, high-pressure gas is injected into the cavity in the central region of the mold, the gas flows in the direction of least resistance to low-pressure and high-temperature regions of the product, and the molten plastic is replaced to empty the cross section of the thick region, thereby forming a cavity 203.
In the above-described embodiments, further improvements can be made. For example, the television base 200 is a double-bracket 202 base 200, the mold is a double-bracket 202 mold, and an included angle between the two mold brackets 202 is an obtuse angle;
in the central area of the mold and the area near the position of the bracket 202 of each base 200, a gas injection port is respectively arranged, and high-pressure gas is respectively injected into the mold cavity corresponding to the bracket 202, the steps include:
two gas injection ports are arranged and respectively correspond to the die cavities of the two brackets 202; and a reinforcing rib 205 is arranged between the two gas injection ports to block the gas path.
That is, a corresponding gas injection portion 204 is provided in the central region of the base 200 for each of the brackets 202 (i.e., one leg) to perform gas injection to form the cavity 203.
As shown in fig. 9, the step of driving the high-pressure gas to flow in the corresponding mold cavity of the support 202 to displace the molten material to form the cavity 203 of the support 202 of the base 200 includes:
the high pressure gas is driven to flow within the corresponding mold cavity of the stent 202 and move to the end region of the mold cavity of the stent 202 such that the cavities 203 of the stent 202 are evenly distributed throughout the stent 202.
Corresponding to the above method embodiments, the present application also provides a base 200 manufactured by the manufacturing method. Specifically, referring to fig. 9, the base 200 includes a base middle portion 201, at least two brackets 202 are connected to the base middle portion 201,
the base middle part 201 is provided with the same number of gas injection parts 204 as the brackets 202, and the gas injection parts 204 are close to the corresponding brackets 202;
the holder 202 has a cavity 203 of the holder 200 formed by a gas injection portion 204.
Further, the base middle part 201 is provided with a reinforcing rib 205 for cutting off each gas injection part 204; the cavities 203 of each bracket 202 are not in communication with each other.
Obviously, in the above embodiment, since a plurality of gas-injection ports are provided, and the number of gas-injection ports corresponds to the number of legs, and the respective gas-injection ports are isolated by the reinforcing ribs 205. The reinforcing ribs 205 serve to enhance the strength, and in addition, it is important to isolate the two gas injection positions to avoid mutual influence. This solution thus enables one leg to have one cavity 203 and the cavities 203 to be evenly distributed inside the corresponding leg. Thereby enabling to further enhance the structural strength of the entire base 200.
That is, in the third embodiment, the change of the cross-sectional wall thickness is utilized, and the double-gas-assisted structure is adopted to optimize the air passage layout, so that the air passage flow scheme is simplified and is convenient to control. This scheme adopts independent two air flue structures to adopt the design of strengthening rib 205 to separate two air flues between two income gas pockets, make the cavity 203 that the air flue formed in needs position, and the wall thickness is even reasonable, realizes the design objective.
In conclusion, through the improvement and optimization of the invention, the bearing capacity of the structure of the all-plastic base 200 is greatly enhanced, so that the all-plastic base 200 can be expanded to a larger and heavier machine type, and the final aims of low cost and high reliability of the base 200 are realized.
Finally, the application also provides a television comprising a television display; the television set further comprises a television base 200 as in any of the embodiments described above, and the television display is supported on the television base 200.
The technical effects are the same as above, and are not described herein again.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Reference throughout this specification to "embodiments," "some embodiments," "one embodiment," or "an embodiment," etc., means that a particular feature, component, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in various embodiments," "in some embodiments," "in at least one other embodiment," or "in an embodiment," or the like, throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, components, or characteristics may be combined in any suitable manner in one or more embodiments. Thus, without limitation, a particular feature, component, or characteristic illustrated or described in connection with one embodiment may be combined, in whole or in part, with a feature, component, or characteristic of one or more other embodiments. Such modifications and variations are intended to be included within the scope of the present application.
Moreover, those skilled in the art will appreciate that aspects of the present application may be illustrated and described in terms of several patentable species or situations, including any new and useful combination of processes, machines, manufacture, or materials, or any new and useful improvement thereon. Accordingly, various aspects of the present application may be embodied entirely in hardware, entirely in software (including firmware, resident software, micro-code, etc.) or in a combination of hardware and software. The above hardware or software may be referred to as "data block," module, "" engine, "" terminal, "" component, "or" system. Furthermore, aspects of the present application may be represented as a computer product, including computer readable program code, embodied in one or more computer readable media.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
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 (14)
1. A method of manufacturing a television mount, comprising:
obtaining a mould of a television base;
injecting the molten material into the cavity of the mold;
injecting high-pressure gas into the die cavity in the edge area of the die;
the high pressure gas is driven to flow to displace the molten material to form the cavity of the base.
2. The method of claim 1, wherein the tv base is a dual-rack base, the mold is a dual-rack mold, and an included angle between two mold racks is an obtuse angle;
the step of injecting high pressure gas into the cavity in the edge area of the mold includes:
injecting high-pressure gas into a die cavity of a bracket die in the edge area of a die bracket to replace molten materials to form a cavity of a base bracket;
the step of driving the high pressure gas to flow to displace the molten material to form the cavity of the base includes:
driving high-pressure gas to replace molten materials from the current die cavity of the bracket die through the die cavity in the center of the die to form a cavity in the middle part of the base; and the high-pressure gas is driven to flow to the die cavity of the bracket die on the other side to replace the molten material, so that the cavity of the base bracket on the other side is formed.
3. A television base comprises a base middle part, the base middle part is connected with at least two brackets, and is characterized in that,
the end of the support is provided with a gas injection part, and the support is provided with a support cavity formed by the gas injection part.
4. The television mount of claim 3, wherein the mount intermediate portion has a mount intermediate cavity in communication with the cradle cavity.
5. A method of manufacturing a television mount, comprising:
obtaining a mould of a television base;
injecting the molten material into the cavity of the mold;
injecting high-pressure gas into the die cavity in the central area of the die;
the high pressure gas is driven to flow to displace the molten material to form the cavity of the base.
6. The method according to claim 5, wherein the TV base is a dual-rack base, the mold is a dual-rack mold, and the included angle between the two mold racks is an obtuse angle;
the step of injecting high-pressure gas into the cavity in the central region of the mold includes:
injecting high-pressure gas into the mold cavity in the central area of the mold to replace the molten material to form a cavity in the middle part of the base;
the step of driving the high pressure gas to flow to displace the molten material to form the cavity of the base includes:
and driving high-pressure gas to flow to the die cavities of the bracket dies on the two sides to replace the molten material, so that the cavities of the base brackets on the two sides are respectively formed.
7. A television base comprises a base middle part, the base middle part is connected with at least two brackets, and is characterized in that,
the base middle part is provided with a gas injection part, and the base middle part is provided with a cavity of the base middle part formed by the gas injection part.
8. The television mount of claim 7, wherein said cradle portion has a cradle cavity in communication with a cavity in said mount middle portion.
9. A method of manufacturing a television mount, comprising:
obtaining a mould of a television base;
injecting the molten material into the cavity of the mold;
respectively arranging a gas injection port in the central area of the mold and the position area of the bracket close to each base, and respectively injecting high-pressure gas into the mold cavity corresponding to the bracket;
and driving high-pressure gas to flow in the die cavity corresponding to the support to replace the molten material to form the cavity of the support of the base.
10. The method of claim 9, wherein the tv base is a dual-rack base, the mold is a dual-rack mold, and an included angle between two mold racks is an obtuse angle;
the central area of the mould and the position area of the bracket close to each base are respectively provided with a gas injection port, and high-pressure gas is injected into the mould cavity corresponding to the bracket, and the method comprises the following steps:
two gas injection ports are arranged and respectively correspond to the die cavities of the two brackets; and a reinforcing rib is arranged between the two gas injection ports to separate the gas path.
11. The method of manufacturing a television mount of claim 10,
the step of driving the high-pressure gas to flow in the die cavity corresponding to the support to replace the molten material to form the cavity of the support of the base comprises the following steps:
high-pressure gas is driven to flow in the corresponding mold cavity of the stent and move to the end region of the mold cavity of the stent, so that the cavities of the stent are uniformly distributed in the whole stent.
12. A television base comprises a base middle part, the base middle part is connected with at least two brackets, and is characterized in that,
the middle part of the base is provided with gas injection parts with the same number as the brackets, and the gas injection parts are close to the corresponding brackets;
the bracket is provided with a bracket cavity formed by the gas injection part.
13. The television base according to claim 12, wherein the base middle portion is provided with a reinforcing rib for partitioning each of the gas injection portions; the cavities of the brackets are not communicated with each other.
14. A television set comprising a television display; the television set further comprising a television base as claimed in claim 3, 4, 7, 8, 12 or 13, the television display being supported on the television base.
Priority Applications (1)
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| CN202010264940.7A CN111331775A (en) | 2020-04-07 | 2020-04-07 | Television base, manufacturing method thereof and television |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010264940.7A CN111331775A (en) | 2020-04-07 | 2020-04-07 | Television base, manufacturing method thereof and television |
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| CN111853487A (en) * | 2020-07-28 | 2020-10-30 | 海信视像科技股份有限公司 | Support frame, base and display device |
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Effective date of registration: 20200928 Address after: 529000 Jiangmen City, Guangdong province advanced manufacturing sand demonstration park, Hisense Avenue, No. B District, No. 8 Applicant after: GUANGDONG HISENSE ELECTRONIC Co.,Ltd. Address before: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Applicant before: Hisense Video Technology Co.,Ltd. |
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