CN109014795B

CN109014795B - Method for processing decorative plate

Info

Publication number: CN109014795B
Application number: CN201811050433.2A
Authority: CN
Inventors: 向勇; 胡建波; 冯灵光; 陈伟雄
Original assignee: Shenzhen Skyworth RGB Electronics Co Ltd
Current assignee: Shenzhen Skyworth RGB Electronics Co Ltd
Priority date: 2018-09-10
Filing date: 2018-09-10
Publication date: 2020-09-08
Anticipated expiration: 2038-09-10
Also published as: CN109014795A

Abstract

The invention discloses a method for processing a decorative plate, and relates to the technical field of decorative plate processing. The processing method of the decorative plate comprises the following steps: step S1: the prefabricated plate comprises a plate body, wherein first side edges are formed on two opposite sides of the front surface of the plate body, a boss is formed in the middle of the front surface of the plate body, a first groove is formed between the boss and the first side edges, and the boss extends to two ends of the plate body along the length direction of the first side edges; step S2: stamping the back surface of the plate body to form a first connecting area for connecting the first side edge and the boss at the first groove on the front surface of the plate body; step S3: and machining the first connecting area and the boss to form a second side edge connecting the two first side edges, and rounding the joint of the first side edge and the second side edge. On the basis of the prefabricated plate, the second side edge and the fillet are formed on the plate body sequentially through die extrusion forming and machining, no splicing seam or bent seam exists at the fillet, and the appearance of the decorative plate is free of defects.

Description

Method for processing decorative plate

Technical Field

The invention relates to the technical field of decorative plate processing, in particular to a processing method of a decorative plate.

Background

The appearance parts of the television, such as the decorative plate, are generally made of aluminum profiles. The aluminum profile is manufactured by the procedures of aluminum alloy casting, extrusion, oxidation and the like, has good extensibility, and is convenient for machining and oxidation coloring.

The edge of decorative board is provided with the side, and the corner of two adjacent sides passes through fillet transitional coupling. In the prior art, the parts are generally added for connection or the parts are connected after the side edges are bent through machining, but the two methods have the appearance that a seam or a bending gap of the two parts appears, and the overall consistency of the appearance is influenced.

Disclosure of Invention

The invention aims to provide a processing method of a decorative plate, which can eliminate splicing seams or bent gaps on the appearance of the decorative plate and improve the aesthetic degree of the decorative plate.

In order to achieve the purpose, the invention adopts the following technical scheme:

a processing method of a decorative plate comprises the following steps:

step S1: forming a prefabricated plate, wherein the prefabricated plate comprises a plate body, first side edges are formed on two opposite sides of the front surface of the plate body, a boss is formed in the middle of the front surface of the plate body, a first groove is formed between the boss and the first side edges, and the boss extends to two ends of the plate body along the length direction of the first side edges;

step S2: stamping the back surface of the plate body to form a first connecting area for connecting the first side edge and the boss on the front surface of the plate body at the first groove;

step S3: and machining the first connecting area and the boss to form a second side edge connecting the two first side edges, and rounding the joint of the first side edge and the second side edge.

Wherein, the precast slab is formed by an extrusion process.

Wherein, in the step S1, the height of the boss is not less than the height of the first side edge.

Step S1 further includes forming a second groove on the back surface of the board body, where the second groove extends to both ends of the board body along the length direction of the first side edge.

Wherein, before the step S2, the method further includes:

and stamping two ends of the lug boss to enable two ends of the bottom surface of the second groove to be flush with the back surface of the plate body.

And the heights of the two ends of the boss after stamping are not less than the height of the first side edge.

Wherein, before the step S2, the method further includes:

stamping the end part of the precast slab to bend the end part of the precast slab downwards to form a folded edge;

and machining the folded edge to form a flange for plugging the end part of the second groove on the back surface of the plate body.

In step S2, a dimension of the first connection region along the length direction of the first side is greater than the radius of the rounded corner.

In step S2, the area where the back surface of the plate body is punched is a first punched area, and the width of the first punched area is greater than the width of the first groove.

Another object of the present invention is to provide a decorative sheet, which has no splice joints or bending gaps in appearance, and improves the aesthetic appearance of the decorative sheet.

the decorative plate is formed by adopting the processing method of the decorative plate, and comprises a plate body, wherein the two opposite sides of the plate body are provided with first sides, the two first sides are connected through a second side, and corners of the first sides and the second sides are fillets.

Has the advantages that: the invention provides a method for processing a decorative plate. The processing method of the decorative plate is characterized in that on the basis of the prefabricated plate, the second side edge and the fillet connecting the second side edge and the first side edge are formed on the plate body through die extrusion forming and machining in sequence, and the fillet does not have a splicing seam or a bent gap, so that the appearance of the decorative plate is free of defects.

Drawings

Fig. 1 is a schematic structural view of a decorative panel provided in embodiment 1 of the present invention;

fig. 2 is a partial sectional view of a decorative panel provided in embodiment 1 of the present invention;

fig. 3 is a front view of a decorative panel provided in embodiment 1 of the present invention;

FIG. 4 is a sectional view taken along line A-A of FIG. 3;

FIG. 5 is a front view of a prefabricated panel provided in example 1 of the present invention;

FIG. 6 is a side view of a prefabricated panel provided in example 1 of the present invention;

FIG. 7 is a front view of the prefabricated panel provided in example 1 of the present invention after punching a second punching section;

FIG. 8 is a side view of the prefabricated panel provided in example 1 of the present invention after punching a second punching section;

FIG. 9 is a schematic structural view of the prefabricated panel provided in example 1 of the present invention after the second punching area is punched;

FIG. 10 is a bottom view of a prefabricated panel provided in example 1 of the present invention;

FIG. 11 is a first schematic structural diagram of the prefabricated panel provided by the embodiment 1 of the invention after the first stamping area is stamped;

FIG. 12 is a front view of the prefabricated panel provided in example 1 of the present invention after punching the first punching section;

FIG. 13 is a sectional view taken along line B-B of FIG. 12;

FIG. 14 is a schematic view of a second construction of the prefabricated panel provided in example 1 of the present invention after the first punching area is punched;

FIG. 15 is a schematic structural view of a prefabricated panel provided in example 2 of the present invention after the end portion is punched;

FIG. 16 is a plan view of the prefabricated panel provided in example 2 of the present invention after the end portion is punched;

FIG. 17 is a front view of the prefabricated panel provided in example 2 of the present invention after the end portion is punched;

FIG. 18 is a schematic structural diagram of the prefabricated panel provided by the embodiment 2 of the invention after the prefabricated panel is subjected to edge folding machining.

Wherein:

1. a plate body; 11. a second groove; 12. punching a groove; 13. blocking edges; 2. a side edge; 21. round corners; 22. a first side edge; 23. a second side edge; 3. a boss; 4. a first groove; 5. a second stamped area; 6. a second attachment zone; 7. a first stamped area; 8. a first connection region; 9. folding edges;

c. the width of the stamping slot; d. the width of the first groove; e. cutting a line; l, length of the first connection region; r, radius of the fillet.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.

Example 1

The embodiment provides a decorative plate which can be used as a decorative part or a decorative panel of the appearance of electrical equipment such as a sound box, a refrigerator, a washing machine, an air conditioner, a computer, a display and the like. The decorative plate can be an aluminum profile which has the characteristics of good extensibility, convenience for machining, oxidation coloring and the like, and can meet the use requirement of appearance pieces in electrical equipment.

As shown in fig. 1 and 2, the decorative plate includes a plate body 1 and a side edge 2 disposed along an edge of the plate body 1. In this embodiment, plate body 1 is the rectangle, and four sides of plate body 1 all are provided with side 2, and side 2 includes first side 22 and second side 23, and the corner of first side 22 and second side 23 passes through fillet 21 transitional coupling. The positive middle part of plate body 1 can also be equipped with boss 3, forms first recess 4 between boss 3 and the side 2, and first recess 4 can be for dividing the look groove. The color separation grooves can be boundary lines of different colors on the decorative plate, so that the decorative plate can realize various appearance colors on the basis of not increasing a die. As shown in fig. 3 and 4, the boss 3 is higher than the side edge 2, and the back surface of the plate body 1 is further provided with a second groove 11.

The decorative board is the outward appearance part, and in order to guarantee that the profile is pleasing to the eye, adjacent side 2 passes through fillet 21 transitional coupling. In the prior art, the junction of two adjacent sides 2, fillet 21 position is generally fixed through two part concatenations or through the shaping of bending process promptly, leads to there being obvious concatenation gap or the clearance of buckling on the surface of fillet 21 position, influences the holistic uniformity of decorative board to influence electrical equipment's outward appearance.

In order to solve the above problem, the present embodiment further provides a method for processing a decorative board, which can ensure that no splicing gap or bending gap exists at the position of the fillet 21, thereby improving the appearance quality of the decorative board.

The processing method of the decorative plate in the embodiment adopts a mode of combining a stretching process, an extrusion forming process and machining, so that the positions of the fillets 21 of the two adjacent side edges 2 are in smooth transition to form a whole, the appearance perfection is ensured, and the part cost is reduced.

Specifically, the processing method may first form the prefabricated panel through an extrusion process. In this embodiment, the prefabricated panels may be aluminum profiles formed by an aluminum extrusion process, and in other embodiments, the prefabricated panels may be made of other materials. As shown in fig. 5 and 6, the prefabricated panel includes a panel body 1 and first sides 22 disposed at opposite sides of a front surface of the panel body 1, wherein a second groove 11 is formed at a rear surface of the panel body 1 during an aluminum extrusion process, and the first sides 22 are integrally formed with the panel body 1.

The middle part of the front surface of the plate body 1 can also be provided with a boss 3, and the boss 3 and the plate body 1 are integrally formed through an aluminum extrusion process. The boss 3 extends to two ends of the plate body 1 along the length direction of the first side 22, so that raw materials can be provided for forming the second side 23 and the fillet 21, the first groove 4 is formed between the side wall of the boss 3 and the first side 22, and the first groove 4 can be used as a color separation groove, so that the multi-color appearance of the decorative plate is realized.

Since the prefabricated panel is formed through an extrusion process and has the bosses 3, the rear surface of the panel body 1 is formed with the second grooves 11 during the process of forming the prefabricated panel, and the second grooves 11 extend to both ends of the panel body 1 along the length direction of the first side 22. And in the assembly process of the processed decorative plate, a gap exists on the side surface. In the prior art, side gaps are generally blocked by bending or increasing the splicing mode of parts, obvious seams exist after blocking, and the appearance of electrical equipment is influenced

In order to solve the above problem, the processing method provided in this embodiment fills the end of the second groove 11 by stamping before forming the second side 23 and the fillet 21, so as to avoid the side gap during the assembly of the decorative board.

Specifically, as shown in fig. 7 and 8, the end of the boss 3 in the prefabricated panel forms a second punched area 5, the material of the boss 3 flows toward the back surface of the panel body 1 by punching the end of the boss 3, so that the two ends of the bottom surface of the second groove form second connection areas 6, and the surface of the second connection areas 6 is flush with the back surface of the panel body 1 so as to block the two ends of the second groove 11, and the second groove 11 is not visible from the side of the prefabricated panel, i.e., the second groove 11 has a four-sided closed groove structure.

As shown in fig. 9, after stamping, the surface height of the second stamped area 5 is lower than that of the boss 3, and second connecting areas 6 are protruded from both ends of the second groove 11 on the back surface of the plate body 1, and the surface of the second connecting areas 6 is flush with the back surface of the plate body 1.

In this embodiment, the second side edge 23 is formed in the second stamping area 5, and in order to meet the height requirement of the second side edge 23, the height of the end portion of the stamped boss 3, that is, the height of the second stamping area 5 after stamping, should be not less than the height of the first side edge 22. For this reason, it is necessary to ensure that the height of the boss 3 is greater than the height of the first side edge 22 when the prefabricated panel is molded.

In this embodiment, the second side 23 connected to the first side 22 is formed by die extrusion. In order to ensure better die extrusion forming effect, the height difference between the boss 3 and the side edge 2 in the decorative plate to be processed is not less than the depth of the second groove 11. If the height difference between the boss 3 and the side edge 2 is smaller than the depth of the second groove 11, after the second connection area 6 is formed by stamping the second stamped area 5, the height of the second stamped area 5 will be lower than the height of the first side edge 22, and the requirement of the molding height of the second side edge 23 cannot be met.

In this embodiment, it is also necessary to form a rounded corner 21 connecting the second side 23 and the first side 22. Since the fillet 21 is located partly in the second side edge 22, partly in the second stamped area 5 and partly in the first recess 4. In order to form the fillet 21, it is necessary to project part of the structure in the first groove 4 beyond the front face of the plate body 1, i.e. to provide the fillet forming material of the first groove 4.

As shown in fig. 10, the rear side of the plate body 1 is also provided with a first stamped area 7 in the second connecting area 6, the first stamped area 7 corresponding to the position of the first recess 4. By pressing the first stamped area 7 on the rear side of the plate body 1, the material in the first stamped area 7 is made to flow towards the front side of the plate body 1, so that a first connecting area 8 is formed on the front side of the plate body 1 as shown in fig. 11, the first connecting area 8 connecting the first side 22 and the second stamped area 5 in order to form the fillet 21.

After stamping, the second side 23 is formed in the second stamping area 5 by machining, and the fillet 21 connecting the second side 23 and the first side 22 is formed in the first connection area 8. And finally, removing redundant materials, processing the surface and the like through machining to finish the processing of the decorative plate.

In the embodiment, the first side edge 22 and the second side edge 23 are connected through extrusion molding of the die, so that materials can be tightly attached to form an integral structure, the fillet 21 does not have defects such as splicing gaps or bending gaps, the appearance is good, and the quality is high.

As shown in fig. 12, for the processing demand of the size and the shape of satisfying fillet 21, the length L of first connecting area 8, first connecting area 8 is not less than the radius R of fillet 21 along the size of first side 22 extending direction promptly, and first connecting area 8 all need stretch out the certain size of fillet along length direction's both ends, not only can the material in first connecting area 8 have sufficient machining cutting allowance, be favorable to increasing the joint strength of first side 22 and fillet 21 moreover, guarantee the holistic reliability of decorative board. Alternatively, the distance between the two ends of the first connection region 8 and the two ends of the rounded corner 21 may be determined according to the actual size of the plate body 1. In this embodiment, the thickness of the plate body 1 is not less than 0.5mm, and the distance between the two ends of the first connecting region 8 and the two ends of the fillet 21 may be 0.5 mm.

By stamping the back side of the plate body 1 to form the first connection zone 8, it is possible to feed the area where the first groove 4 is located, ensuring sufficient extruded material, thereby preventing cracks at the location of the fillet 21.

As shown in fig. 13 and 14, stamping the first stamped area 7 of the back surface of the plate body 1 will form a stamped groove 12 in the back surface of the plate body 1.

The width c of the punched groove 12, i.e. the dimension in the extension direction of the second side 23, is larger than the width d of the first groove 4 to ensure a sufficient material replenishment. In this embodiment, the decorative plate to be formed has four rounded corners 21, and correspondingly, four stamping grooves 12 are formed in the back surface of the plate body 1.

Since the final side 2 of the decorative plate is a ring structure, the two ends between the two first sides 22 need to be formed by extrusion, and the first connecting areas and the processing grooves at the two ends are the same, which is not described herein again.

After extrusion, excess material is removed by milling or the like to form the second side 23, the fillet 21 and the first groove 4. And then, removing redundant materials in a cutting or milling mode and the like to finish the processing of the decorative plate.

Example 2

The embodiment provides a decorative plate and a processing method thereof. The structure of the decorative plate is the same as that of embodiment 1. The method of processing the decorative plate is substantially the same as that in embodiment 1, and is different from that in embodiment 1 in the method of plugging the end face of the second groove 11.

After the preformed sheet has been formed by machining, the end of the preformed sheet is bent downwardly to form a hem 9 by stamping the end of the preformed sheet, as shown in figures 15 and 16. Then, part of the structure of the folded edge 9 is removed by machining according to the cutting line shown in fig. 17, so that the back surface of the plate body 1 is formed with a rib 13 for blocking the end of the second groove 11 as shown in fig. 18.

After the end of the second groove 11 is plugged, the second side 23 and the fillet 21 are formed by an extrusion process, and the specific steps are the same as those in embodiment 1, which is not described again in this embodiment.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. The processing method of the decorative plate is characterized by comprising the following steps:

step S1: the prefabricated plate comprises a plate body (1), first side edges (22) are formed on two opposite sides of the front surface of the plate body (1), a boss (3) is formed in the middle of the front surface of the plate body (1), a first groove (4) is formed between the boss (3) and the first side edges (22), and the boss (3) extends to two ends of the plate body (1) along the length direction of the first side edges (22);

step S2: stamping the back surface of the plate body (1) to form a first connecting area (8) connecting the first side edge (22) and the boss (3) at the first groove (4) on the front surface of the plate body (1);

step S3: machining the first connection region (8) and the boss (3) to form a second side (23) connecting the two first sides (22), and rounding (21) at the connection of the first side (22) and the second side (23).

2. The method of manufacturing a decorative panel according to claim 1, wherein said prefabricated panel is formed by an extrusion process.

3. The method of processing a decorative panel according to claim 1, wherein in step S1, the height of the boss (3) is not less than the height of the first side edge (22).

4. The method of manufacturing a decorative panel according to claim 1, wherein the step S1 further includes forming a second groove (11) on the rear surface of the panel body (1), the second groove (11) extending to both ends of the panel body (1) along the length direction of the first side edge (22).

5. The method of manufacturing a decorative panel according to claim 4, wherein the step S2 is preceded by the steps of:

and (3) stamping two ends of the boss (3) to enable two ends of the bottom surface of the second groove (11) to be flush with the back surface of the plate body (1).

6. The method of manufacturing a decorative plate according to claim 5, wherein the height of both ends of the boss (3) after punching is not less than the height of the first side edge (22).

7. The method of manufacturing a decorative panel according to claim 4, wherein the step S2 is preceded by the steps of:

and machining the folded edge to form a flange for plugging the end part of the second groove (11) on the back surface of the plate body (1).

8. The method of manufacturing a decorative panel according to any one of claims 1 to 7, wherein in step S2, the dimension of the first attachment area (8) along the length of the first side edge (22) is larger than the radius of the rounded corner (21).

9. The finishing method of a decorative panel according to any one of claims 1 to 7, wherein in the step S2, the area where the back surface of the panel body (1) is punched is a first punched area (7), and the width of the first punched area (7) is larger than the width of the first groove (4).