A paint-free arc-shaped bending component

Abstract

The utility model discloses a paint-free arc-shaped bending component, wherein the paint-free plate has at least one bending portion, and the convex surface of the bending portion is arc-shaped; the plate bodies located on both sides of the bending portion have a continuous plate surface on the convex surface of the bending portion, which is disconnected and milled with a slot on the concave surface; a gluing groove is provided between the bottom of the slot and the convex surface of the bending portion, and the gluing groove is filled with adhesive; the clip strip is provided with a connecting piece along the cross section of the plate bodies on both sides, and one end of the connecting piece located in the bending portion has a supporting wing extending toward the plate bodies on both sides, and the other end extending out of the slot is respectively attached to the plate surface and extends toward the direction of the plate bodies on both sides to form an edge banding strip. The utility model is different from the bending plate made by the traditional pressing process, and the bending component is realized by the combination of the slot and the clip strip, and the angle size after bending is precisely controlled, and there will be no rebound, which effectively avoids surface cracking.

Description

Technical Field

[0001] The utility model specifically relates to a paint-free arc-shaped bending component. Background Art

[0002] The paint-free boards on the market are made by directly pressing large boards. They usually take advantage of the toughness of the wood, push and bend the large boards through screws and other equipment, or press the boards with molds to make them curved, so that the boards remain bent when they are bent. Customized furniture is popular today, and many customers like to make arcs at the corners. As flat boards, paint-free boards cannot be bent directly to form arc shapes on the surface. If they are used as flat boards during the second-phase processing, the bent parts are prone to cracking during the stress process, or cracking in the later stage due to the influence of climate. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art, provide a paint-free arc-shaped bending component, and solve the problems in the above-mentioned background technology.

[0004] The technical solution adopted by the utility model to solve the technical problem is: providing a paint-free arc-shaped bending component, including a paint-free plate and a clamping strip;

[0005] The paint-free board has at least one bending portion, and the convex surface of the bending portion is arc-shaped; the board bodies located on both sides of the bending portion have a continuous board surface on the convex surface of the bending portion, which is disconnected and milled with a groove on the concave surface; a gluing groove is provided from the bottom of the groove to the convex surface of the bending portion, and the gluing groove is filled with adhesive; the clip strip is provided with a connecting piece along the cross-section of the board bodies on both sides, and one end of the connecting piece located in the bending portion has a supporting wing extending toward the board bodies on both sides, and the other end extending out of the slot is respectively attached to the board surface and extends toward the direction of the board bodies on both sides to form an edge banding strip.

[0006] In the utility model, the cross section of the gluing groove is in an arc shape that matches the curvature of the convex surface of the bending portion.

[0007] In the utility model, the distance from the gluing groove to the convex surface of the bending portion is 0.7-1 mm.

[0008] In the utility model, the adhesive is polyurethane glue.

[0009] In the utility model, the supporting wings are provided with corrugated teeth.

[0010] In the present invention, the winglets are symmetrically distributed along both sides of the connecting member, and the angle between the winglets and the connecting member is no greater than 90°.

[0011] In the present invention, the edge banding strip is parallel to the supporting wing.

[0012] In the present invention, the plates on both sides of the bending portion form an angle of 90°.

[0013] In the utility model, the surface of the paint-free board is paved with melamine facing.

[0014] Compared with the background technology, this technical solution has the following advantages:

[0015] 1. This solution can quickly bend the paint-free board and accurately control the angle size after bending through the cooperation of the card slot and the card strip, achieving at least 90° bending without rebound;

[0016] 2. The gluing groove of this solution is set inside the board, which avoids the adverse effects of the glue not drying up during the process;

[0017] 3. This solution not only achieves the curved surface modeling requirements, but also avoids the cracking of the board to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 is a structural diagram of an embodiment;

[0020] Figure 2 for Figure 1 Enlarged image of the middle circle;

[0021] Figure 3 It is a schematic diagram of the cross section of the card strip;

[0022] Figures 4 to 9 Schematic diagram of the bending process of the embodiment.

[0023] Among them, 1-bending part, 11-convex surface, 12-concave surface, 13-gluing groove, 14-adhesive, 15-slot, 2-plate body, 3-strip, 31-connecting piece, 32-wing, 33-corrugated tooth, 34-edge banding strip. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example

[0026] A paint-free arc-shaped bending component, comprising a paint-free plate and a clamping strip 3;

[0027] The paint-free board has at least one bending portion 1, and the convex surface 11 of the bending portion 1 is arc-shaped; the board bodies 2 located on both sides of the bending portion 1 have a continuous board surface on the convex surface 11 of the bending portion 1, which is disconnected and milled with a groove 15 on the concave surface 12; a gluing groove 13 is provided from the bottom of the groove 15 to the convex surface 11 of the bending portion 1, and the gluing groove 13 is filled with adhesive 14; the clip strip 3 is provided with a connecting piece 31 along the cross-section of the board bodies 2 on both sides, and one end of the connecting piece 31 located in the bending portion 1 extends with a support wing 32 toward the board bodies 2 on both sides, and the other end extending out of the groove 15 is respectively attached to the board surface in the direction of the board bodies 2 on both sides and extends to form an edge banding strip 34.

[0028] In this embodiment, the cross section of the gluing groove 13 is an arc that matches the curvature of the convex surface 11 of the bending portion 1. Since the surface of the paint-free board is paved with melamine facing, the distance from the gluing groove 13 to the convex surface 11 of the bending portion 1 is 0.7-1 mm, and at least the thickness of the melamine facing paper is retained (that is, the continuous board surface of the convex surface 11 of the bending portion 1 includes at least a full thickness of melamine facing paper), which can make the surface arc state more stable, and the adhesive 14 plays a gluing and buffering role. The adhesive 14 used in this embodiment is a weak polyurethane glue.

[0029] In this embodiment, the plate body 2 on both sides of the bending part 1 is bent at an angle of 90°. The wings 32 are symmetrically distributed along the two sides of the connecting member 31, and the angle between them and the connecting member 31 is also 90°. The surface of the wings 32 is also provided with corrugated teeth 33 to prevent falling off. In addition, the cross section of the edge band 34 is L-shaped, and the two arms of the L-shaped are parallel to the wings 32, which can better close the exposed gap of the bending part 1. At the same time, because the edge band 34 is attached to the surface of the plate, it can cooperate with the wings 32 to better fix the bending part 1 and the plate bodies 2 on both sides to avoid rebound.

[0030] The preparation process of this embodiment is as follows:

[0031] ① Take a piece of paint-free board with melamine paper pressed on the surface as a processing sample.

[0032] ② If Figure 4 In a, use a milling tool of a specific shape to place the plate on the CNC processing platform and process it to mill the shape. Figure 4 The groove shown in b in the figure, where the bottom layer thickness H needs to be kept between 0.7 and 1 mm; Figure 5 a in the figure, and then use another tool of a specific shape to mill the same trajectory in the center again to form a wing 32 with a thickness D of 2 mm at the embedded position. Figure 5 The tank body shown in b.

[0033] ③ Place the milled sample with the back facing up. Figure 6 Spray the prepared melamine softener (melamine softener is composed of melamine softening liquid and alcohol in a ratio of 1:5, where melamine softening liquid softens melamine paper to protect it from cracking during the bending process, and alcohol accelerates volatilization and penetration), with a coating amount of 50g / m 2 about.

[0034] ④ Take the prepared hot air gun and heat the surface of the melamine paper sprayed with softener, keeping the temperature at about 160-200°. Blow for 5 minutes until the softener is dry, and then apply weak polyurethane glue on the back of the melamine paper.

[0035] ⑤ Such as Figure 8 a and b, manually bend the plate after step ④, and temporarily fix it when it is bent to 90°.

[0036] ⑥ Will be like Fig. 9 The metal clip shown is inserted into the pre-milled slot 15 to form a 90° fixation. The metal strip has a support wing 32 and an edge banding strip 34 to cooperate with each other, which can effectively prevent the bent sheet from loosening. After the glue is cured, the paint-free arc-shaped bent part is completed.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A paint-free arc-shaped bending component, characterized in that: Including paint-free panels and card strips; The paint-free board has at least one bending portion, and the convex surface of the bending portion is arc-shaped; the board bodies located on both sides of the bending portion have a continuous board surface on the convex surface of the bending portion, which is disconnected and milled with a groove on the concave surface; a gluing groove is provided from the bottom of the groove to the convex surface of the bending portion, and the gluing groove is filled with adhesive; the clip strip is provided with a connecting piece along the cross-section of the board bodies on both sides, and one end of the connecting piece located in the bending portion has a supporting wing extending toward the board bodies on both sides, and the other end extending out of the slot is respectively attached to the board surface and extends toward the direction of the board bodies on both sides to form an edge banding strip.

2. The paint-free arc-shaped bending component according to claim 1, characterized in that: The cross section of the gluing groove is in an arc shape that matches the curvature of the convex surface of the bending portion.

3. The paint-free arc-shaped bending component according to claim 1, characterized in that: The distance from the gluing groove to the convex surface of the bending portion is 0.7-1 mm.

4. The paint-free arc-shaped bending component according to claim 1, characterized in that: The wing is provided with corrugated teeth.

5. The paint-free arc-shaped bending component according to claim 1, characterized in that: The winglets are symmetrically distributed along both sides of the connecting piece, and the angle between the winglets and the connecting piece is no greater than 90°.

6. The paint-free arc-shaped bending component according to claim 5, characterized in that: The edge banding strip is parallel to the supporting wing.

7. The paint-free arc-shaped bending component according to claim 1, characterized in that: The plates on both sides of the bending portion form an angle of 90°.

8. The paint-free arc-shaped bending component according to claim 1, characterized in that: The surface of the paint-free board is paved with melamine facing.

Images