Mesh precision forming machining method of new energy automobile loudspeaker mask

Abstract

The invention discloses a mesh precision forming machining method for a new energy automobile loudspeaker mask. The mesh precision forming machining method comprises the steps that firstly, the surface of a stainless steel sheet is cleaned through plasma and a cleaning machine; 2, roller-coating photosensitive ink on the two surfaces of the stainless steel sheet through an ink roller brush device; 3, drying the photosensitive ink on the surface of the stainless steel sheet in a dryer; 4, the two-side film main bodies are attached to the two sides of the stainless steel sheet correspondingly; the film main body comprises a plurality of area blocks, and a parting line is arranged between every two adjacent area blocks; the area module comprises an outer frame, a plurality of transverse lines and a plurality of longitudinal lines, wherein the transverse lines and the longitudinal lines are arranged in the outer frame in a staggered mode. A miniature developing block is defined by the transverse lines and the longitudinal lines; the film main body comprises a front film main body and a back film main body, and the back film main body is provided with the cut stem developing strip; and 5, placing the stainless steel sheet coated with the front film main body and the back film main body in an exposure machine.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle loudspeakers, and in particular to a method for precision forming of mesh in a new energy vehicle loudspeaker cover. Background Technology

[0002] With the development of new energy vehicles, the design requirements for speakers are becoming increasingly stringent. Among them, the design of the speaker grille in a car is one of the key factors that determines the sound quality, namely whether resonance, echo, and frequency instability will occur during sound transmission.

[0003] In existing mask molding processes, the precision of mesh forming is generally achieved through precision carving. However, when the inner diameter of the holes is small and the number of mesh holes is large, the processing time and the defect rate also increase, seriously affecting production stability and processing efficiency.

[0004] Especially when processing non-standard meshes, the defect rate is high when the size of each mesh is inconsistent, regardless of whether film processing or fine engraving is used.

[0005] Meanwhile, in order to reduce resonance, ensure accurate sound transmission, and enhance the aesthetics of the mask, the shape of the stem wires in the mask is crucial to the sound quality. However, the width of the stem wires is equivalent to one-tenth or even less of the width of the mask, making the processing difficult and severely affecting the consistency of production.

[0006] Therefore, there is a problem that the existing stems are of uneven thickness and do not meet the standards. Summary of the Invention

[0007] The main objective of this invention is to propose a precision forming method for the mesh of a speaker cover for new energy vehicles, which aims to achieve automated production of the cover and to form precise mesh holes in the cover, with uniformly precise wires formed within the mesh holes, thereby improving the sound quality of the cover.

[0008] To achieve the above objectives, this invention proposes a method for precision forming of mesh in a speaker grille for new energy vehicles, comprising:

[0009] Step 1: Clean the surface of the stainless steel sheet using plasma and a cleaning machine.

[0010] Step 2: Apply photosensitive ink to both sides of the stainless steel sheet using an ink roller brush device;

[0011] Step 3: Dry the photosensitive ink on the surface of the stainless steel sheet in a dryer;

[0012] Step 4: Attach the two film bodies to the two sides of the stainless steel sheet respectively;

[0013] The film body includes multiple area blocks, with dividing lines between adjacent area blocks;

[0014] The region module includes an outer frame and a plurality of intersecting horizontal and vertical lines within the outer frame;

[0015] The horizontal and vertical lines form a micro-developing block;

[0016] The film body includes a front film body and a back film body, and the back film body is provided with the filament developing strip;

[0017] Step 5: Place the stainless steel sheet covering the front and back film bodies into the exposure machine.

[0018] The exposure machine molds the photosensitive ink located at the dividing line and the micro-developing block into a resist line protective layer and a resist block protective layer, respectively.

[0019] The stainless steel sheet has a wire-like anti-corrosion protective layer on its reverse side;

[0020] Step 6: Remove the film body and place the exposed stainless steel sheet in the etching solution;

[0021] The etching solution seeps into and gradually corrodes along the outer frame, horizontal lines, and vertical lines until the mesh is formed.

[0022] At this time, the reverse side of the stainless steel sheet is formed with strands of a predetermined width under the protection of the anti-corrosion protective layer.

[0023] Step 7: The etched stainless steel sheet is moved to the solvent cleaning mechanism to remove the photosensitive ink, forming a stainless steel sheet with mesh and filaments.

[0024] 8. Cut the mesh cover into shape from the stainless steel sheet and then bend it.

[0025] The difference between this processing method and existing designs lies in the fact that, because the size and shape of each region block differ, the method utilizes the regions and the intersecting horizontal and vertical lines within them.

[0026] On the photosensitive material of the metal sheet, after the exposure machine and the film substrate are in conjunction, the non-developed areas are developed (i.e., the non-developed areas form a corrosion-resistant layer), thus meeting the requirements of the next etching process.

[0027] By using interlaced horizontal and vertical lines, the etching process can achieve more uniform etching on the metal sheet, avoiding the uneven etching caused by the etching material and the large etching area, which is common in existing block etching methods. This improves the stability of the etching process.

[0028] This can be understood as previously placing a piece of etching solution in a region, so the etching solution reacts as a whole;

[0029] By using horizontal and vertical lines, the etching solution slowly etches from the horizontal and vertical lines, gradually corroding the micro-development blocks between them.

[0030] This reduces the reaction rate, thereby ensuring the consistency of pore positions and preventing excessive corrosion.

[0031] That is, each area block has a different area, but the etching time is not consistent. Therefore, by designing micro-development blocks, the etching time of each area block can be made more consistent.

[0032] This design serves as a good reference model for precision machining, which helps improve the stability of metal processing. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of a film slide magnified during low-magnification microscopy.

[0034] Figure 2 This is a schematic diagram of a film slide magnified during high-magnification microscopy.

[0035] Figure 3 This is a product illustration;

[0036] Figure 4 For the previous processed product inspection forms;

[0037] Figure 5 This is a partial explanation of the location of the stems in the product test form;

[0038] Figure 6 For existing inspection forms of processed products.

[0039] In the picture,

[0040] 1 represents a region module, 10 represents a dividing line, 11 represents a vertical line, and 12 represents a horizontal line.

[0041] 21 is a micro-developing block, and 22 is a fibrous developing block.

[0042] 3 represents the product, 30 represents the stem, and 31 represents the mesh size. Detailed Implementation

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0044] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0045] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0046] like Figures 1 to 5 As shown, a method for precision forming of the mesh of a speaker grille for a new energy vehicle includes:

[0047] Step 1: Clean the surface of the stainless steel sheet using plasma and a cleaning machine.

[0048] Step 2: Apply photosensitive ink to both sides of the stainless steel sheet using an ink roller brush device;

[0049] Step 3: Dry the photosensitive ink on the surface of the stainless steel sheet in a dryer;

[0050] Step 4: Attach the two film bodies to the two sides of the stainless steel sheet respectively;

[0051] The film body includes multiple area blocks, with dividing lines between adjacent area blocks;

[0052] The region module includes an outer frame and a plurality of intersecting horizontal and vertical lines within the outer frame;

[0053] The horizontal and vertical lines form a micro-developing block;

[0054] The film body includes a front film body and a back film body, and the back film body is provided with the filament developing strip;

[0055] Step 5: Place the stainless steel sheet covering the front and back film bodies into the exposure machine.

[0056] The exposure machine molds the photosensitive ink located at the dividing line and the micro-developing block into a resist line protective layer and a resist block protective layer, respectively.

[0057] The stainless steel sheet has a wire-like anti-corrosion protective layer on its reverse side;

[0058] Step 6: Remove the film body and place the exposed stainless steel sheet in the etching solution;

[0059] The etching solution seeps into and gradually corrodes along the outer frame, horizontal lines, and vertical lines until the mesh is formed.

[0060] At this time, the reverse side of the stainless steel sheet is formed with strands of a predetermined width under the protection of the anti-corrosion protective layer.

[0061] Step 7: The etched stainless steel sheet is moved to the solvent cleaning mechanism to remove the photosensitive ink, forming a stainless steel sheet with mesh and filaments.

[0062] 8. Cut the mesh cover into shape from the stainless steel sheet and then bend it.

[0063] The difference between this processing method and existing designs lies in the fact that, because the size and shape of each region block differ, the method utilizes the regions and the intersecting horizontal and vertical lines within them.

[0064] On the photosensitive material of the metal sheet, after the exposure machine and the film substrate are in conjunction, the non-developed areas are developed (i.e., the non-developed areas form a corrosion-resistant layer), thus meeting the requirements of the next etching process.

[0065] By using interlaced horizontal and vertical lines, the etching process can achieve more uniform etching on the metal sheet, avoiding the uneven etching caused by the etching material and the large etching area, which is common in existing block etching methods. This improves the stability of the etching process.

[0066] This can be understood as previously placing a piece of etching solution in a region, so the etching solution reacts as a whole;

[0067] By using horizontal and vertical lines, the etching solution slowly etches from the horizontal and vertical lines, gradually corroding the micro-development blocks between them.

[0068] This reduces the reaction rate, thereby ensuring the consistency of pore positions and preventing excessive corrosion.

[0069] That is, each area block has a different area, but the etching time is not consistent. Therefore, by designing micro-development blocks, the etching time of each area block can be made more consistent.

[0070] This design serves as a good reference model for precision machining, which helps improve the stability of metal processing.

[0071] Specifically, the micro-developing block is rhomboid or triangular in shape, which means that in actual processing, the etching solution gradually seeps from the outer periphery (i.e., the horizontal and vertical lines) to the center of the micro-developing block, thereby achieving uniform etching.

[0072] Specifically, the widths of the horizontal and vertical lines are the same. The etching efficiency of the etching solution tends to be consistent, although inconsistent etching can be achieved to realize other functions.

[0073] Specifically, the etching solution etches from the front, and during the etching process, the etching solution reacts gradually from top to bottom. Therefore, a filament-based anti-corrosion protective layer is provided.

[0074] Specifically, the etching solution is used for spray etching or immersion etching with circulating etching solution.

[0075] Specifically, the size and area of ​​the resist block protective layer are consistent, thereby ensuring that the etching speed of each mesh hole is consistent.

[0076] Specifically, the micro-developing blocks are square.

[0077] The stainless steel sheet has a thickness of 0.35-0.65mm, and the wire has a thickness of 0.385-0.235mm. As long as the wire diameter is not less than 0.235mm, its support and stability can meet the product processing rigidity requirements. The width of the longitudinal and transverse lines is 0.06mm.

[0078] according to Figure 5 , Figure 4 and Figure 6 A comparison of product stem and shred processing showed that the product yield rate increased from 30.4% to 98.6% after the improvement. Figure 4 The product can also be refined through fine carving in the actual subsequent processing, but the process and processing time will increase accordingly, and the cost will also increase.

[0079] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A method for precision forming of mesh in a speaker grille for new energy vehicles, characterized in that, include: Step 1: Clean the surface of the stainless steel sheet using plasma and a cleaning machine. Step 2: Apply photosensitive ink to both sides of the stainless steel sheet using an ink roller brush device; Step 3: Dry the photosensitive ink on the surface of the stainless steel sheet in a dryer; Step 4: Attach the two film bodies to the two sides of the stainless steel sheet respectively; The film body includes multiple area blocks, with dividing lines between adjacent area blocks; each area block includes an outer frame and multiple intersecting horizontal and vertical lines within the outer frame; The horizontal and vertical lines form a micro-developing block; The film body includes a front film body and a back film body, and the back film body is provided with the filament developing strip; Step 5: Place the stainless steel sheet covering the front and back film bodies into the exposure machine. The exposure machine molds the photosensitive ink located at the dividing line and the micro-developing block into a resist line protective layer and a resist block protective layer, respectively. The stainless steel sheet has a wire-like anti-corrosion protective layer on its reverse side; Step 6: Remove the film body and place the exposed stainless steel sheet in the etching solution; The etching solution seeps into and gradually corrodes along the outer frame, horizontal lines, and vertical lines until the mesh is formed. At this time, the reverse side of the stainless steel sheet is formed with strands of a predetermined width under the protection of the anti-corrosion protective layer. Step 7: The etched stainless steel sheet is moved to the solvent cleaning mechanism to remove the photosensitive ink, forming a stainless steel sheet with mesh and filaments.

8. Cut the mesh cover into shape from the stainless steel sheet and then bend it.

2. The method for precision forming of the mesh of a new energy vehicle speaker cover as described in claim 1, characterized in that: The micro-developing blocks are rhomboid or triangular in shape.

3. The method for precision forming of the mesh of a new energy vehicle speaker cover as described in claim 1, characterized in that: The horizontal and vertical lines have the same width.

4. The method for precision forming of the mesh of a speaker cover for new energy vehicles as described in claim 1, characterized in that: The etching solution etches from the front, and during the etching process, the etching solution reacts gradually from top to bottom.

5. The method for precision forming of the mesh of a new energy vehicle speaker cover as described in claim 1, characterized in that: The etching solution is used for spray etching or immersion etching with circulating etching solution.

6. The method for precision forming of the mesh of a new energy vehicle speaker cover as described in claim 1, characterized in that: The anti-corrosion block protective layer has a consistent size and area.

7. The method for precision forming of the mesh of a new energy vehicle speaker cover as described in claim 1, characterized in that: The micro-developer block is square.

8. The method for precision forming of the mesh of a speaker cover for a new energy vehicle as described in claim 1, characterized in that: The thickness of the stainless steel sheet is 0.35-0.65 mm, and the thickness of the wire is 0.385-0.235 mm.

9. The method for precision forming of the mesh of a speaker cover for a new energy vehicle as described in claim 1, characterized in that: The width of the longitudinal and transverse lines is 0.06mm-0.1mm.

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