Raindrop pattern colored aluminum plate and production process thereof

Abstract

This invention discloses a raindrop-patterned color-coated aluminum sheet and its manufacturing process. The sheet includes an aluminum plate body with two end faces (I and II) facing each other. Both end faces are covered with a film layer, symmetrically arranged along the lines of symmetry of the two end faces. The aluminum plate body has a groove, with the film layer covering the inner wall of the groove. The film layer includes a bent portion at one end, which is attached to the groove. The invention also includes a stopper plate inserted into the groove. The stopper plate includes a stopper plate 1 and a stopper plate 2. The stopper plate 2 has a groove, with the bent portions of both film layers inserted into it. The stopper plate 2 also has a groove 4 located on both sides of the groove. The stopper plate 1 has protrusions, the maximum wall thickness of which is greater than the thickness of the groove 4. The protrusions insert into and expand the groove 4. This invention provides a raindrop-patterned color-coated aluminum sheet and its manufacturing process, improving the bonding strength between the film layer and the aluminum plate body and preventing film peeling.

Description

Technical Field

[0001] This invention relates to the field of aluminum sheet technology, and more specifically, to a raindrop-patterned color-coated aluminum sheet and its production process. Background Technology

[0002] Currently, the production process of color-coated aluminum sheets involves coating or adhering a color-coated film to the surface of the aluminum sheet to form aluminum sheets with different patterns. After the color-coated film adheres to the aluminum sheet, the bonding strength at the adhesion edges is relatively weak, and it is easily torn apart under external force, forming warped corners. Therefore, improving the bonding strength between the color-coated film and the aluminum sheet has become an urgent technical problem to be solved. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a raindrop-patterned color-coated aluminum plate and its production process, which improves the bonding strength between the film layer and the aluminum plate body and prevents the film layer from falling off.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a raindrop-patterned color-coated aluminum plate, comprising an aluminum plate body, the aluminum plate body comprising two end faces one and two end faces two, the two end faces one being arranged opposite each other, the two end faces two being arranged opposite each other, both end faces one and end faces two being covered with a film layer, the film layer being symmetrically arranged along the symmetry line of the two end faces one, the aluminum plate body having a groove one, the film layer covering the inner wall of the groove one, the film layer including a bent portion one located at the end, the bent portions one of the two film layers being attached to the groove one; also comprising a stopper plate, the stopper plate being inserted into the groove one, the stopper plate including a stopper plate one and a stopper plate two, the stopper plate two having a groove two, the bent portions one of the two film layers being inserted into the groove two, the stopper plate two also having a groove four, the groove four being located on both sides of the groove two, the stopper plate one having a protrusion, the maximum wall thickness of the protrusion being greater than the thickness of the groove four, the protrusion being inserted into and opening the groove four, so that the inner wall of the groove two pressing the two bent portions one together.

[0005] The present invention is further configured such that the first groove includes a first wall surface and a second wall surface, the second wall surface is perpendicular to the second end surface, the first wall surface is located on the side of the second wall surface away from the second end surface, and the second plug plate adheres to and presses against the first wall surface and the second wall surface.

[0006] The present invention is further configured such that wall surface one is parallel to end surface two, bending part one is perpendicular to wall surface one, and groove four is located between bending part one and wall surface two.

[0007] The invention is further configured such that the thickness direction of the fourth groove is perpendicular to the second wall, the thickness of the fourth groove remains consistent, and the thickness of the protrusion gradually decreases along the direction in which it is inserted into the fourth groove.

[0008] The invention is further configured such that the second stopper plate is made of an elastic material.

[0009] The present invention also adopts the following technical solution: a production process for a raindrop-patterned color-coated aluminum sheet, comprising a base, the base including a boss located at the top, the top of the boss having a positioning groove; comprising a first movable block, the first movable block being capable of moving left and right, the first movable block including a first movable plate, the first movable plate being located below the boss; comprising a pressure plate, the pressure plate being capable of moving left and right, the pressure plate being located outside the boss; comprising a bending assembly, the bending assembly including a second movable block, the second movable block being capable of moving left and right, the second movable block including a second movable plate, the second movable plate being capable of extending into the groove; and further comprising the following processing steps:

[0010] ① Insert the aluminum plate body into the positioning groove;

[0011] ② The membrane layer is bent on both sides to form the second bending part. The membrane layer is fitted into the aluminum plate body. The bottom surface of the membrane layer is attached to the first end face. The second bending part is attached to the second end face.

[0012] ③ The pressure plate extends to the side of the boss, and the pressure plate and the boss press the film layer together. The moving plate extends to the side closer to the pressure plate so that the bending part two bends to form the bending part one.

[0013] ④ The pressure plate moves away from the boss, the moving plate moves away from the pressure plate, the moving block moves closer to the end face, and the moving plate extends into the tank to bend the bending part, so that the film layer is in contact with the wall of the tank.

[0014] ⑤ Invert the aluminum plate body, insert the side of the aluminum plate body that is attached to the film layer into the positioning groove, and repeat steps ②③④;

[0015] ⑥ Insert the plug plate 2 into the groove 1, insert the bent part 1 into the groove 2, and insert the protrusion into and open the groove 4 so that the inner wall of the groove 2 presses the two bent parts 1 tightly.

[0016] The invention is further configured such that the bottom surface of the pressure plate is at the same height as the top surface of the moving plate.

[0017] The invention is further configured such that a limiting plate is slidably connected to the upper end of the second movable plate, and when the second movable plate extends into the first groove, the limiting plate and the second end face press against the second bent part.

[0018] The invention is further configured such that a limiting plate is connected to a rod, the rod is slidably inserted into a moving block two, and a spring one is provided between the limiting plate and the moving block two, with the two ends of the spring one abutting against the limiting plate and the moving block two respectively.

[0019] The present invention is further configured such that the aluminum plate body surface is coated with adhesive and then bonded to the film layer.

[0020] In summary, the present invention has the following beneficial effects:

[0021] The protrusion inserts into and expands the groove four, causing the inner wall of the groove two to press the two bent portions one tightly together. Because the protrusion expands the groove four, the outer wall of the stopper plate two presses against wall surface one and wall surface two, thereby compressing the film layer between the outer wall of the stopper plate two and wall surfaces one and two, thus preventing the film layer from peeling off. Furthermore, because the bent portions one of the two film layers are pressed and fixed together by the stopper plate two, the film layer is less likely to detach from the aluminum plate body. Attached Figure Description

[0022] Figure 1 This is a cross-sectional view of Embodiment 1;

[0023] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 This is a cross-sectional view of Example 2;

[0025] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0026] Figure 5 The film layer bending action in Example 2 Figure 1 ;

[0027] Figure 6 The film layer bending action in Example 2 Figure 2 ;

[0028] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0029] Figure 8 This refers to the third film layer bending action in Example 2;

[0030] Figure 9 This is a bonding diagram of the aluminum plate body and the film layer in Example 2;

[0031] Figure 10 This is an installation diagram of the bending part one in Example 2;

[0032] Figure 11 for Figure 10 Enlarged view at point D;

[0033] Figure 12 for Figure 11 A cross-sectional view along the MM direction.

[0034] Reference numerals in the attached drawings: Aluminum plate body 1, End face 11, End face 2 12, Groove 121, Wall face 1211, Wall face 2 1212, Film layer 2, Bending part 1 21, Bending part 2 22, Plug plate 3, Plug plate 1 31, Protrusion 311, Plug plate 2 32, Groove 4 321, Groove 2 322, Base 4, Boss 41, Positioning groove 411, Drive component 1 5, Moving block 1 51, Moving plate 1 511, Drive component 2 6, Pressure plate 61, Bending assembly 7, Moving block 2 71, Moving plate 2 711, Limiting plate 72, Rod 73, Spring 1 74, Pressure cap 8, Sleeve rod 9, Slide rod 91, Groove 3 911, Limiting rod 92, Protruding ring 921, Spring 2 93. Detailed Implementation

[0035] The technical solutions of 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 some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1:

[0037] like Figure 1 , Figure 2 As shown in the figure, this embodiment discloses a raindrop-patterned color-coated aluminum plate, including an aluminum plate body 1. The aluminum plate body 1 has a cuboid structure and an I-shaped cross-section. The aluminum plate body 1 includes two end faces 11 arranged vertically opposite each other and two end faces 12 arranged horizontally opposite each other. Both end faces 11 and end faces 12 are covered with a film layer 2, which is a raindrop-patterned color-coated film. The film layer 2 is bonded to the end faces 11 and end faces 12 with adhesive.

[0038] like Figure 2 As shown, the aluminum plate body 1 is provided with a groove 121. The groove 121 is recessed into the aluminum plate body 1 along the end face 12 and extends through the aluminum plate body 1 in the length direction. The groove 121 includes a wall 1211 and a wall 1212. The wall 1212 is perpendicular to the end face 12. The two walls 1212 are arranged face to face, one above the other. The wall 1211 is located on the side of the wall 1212 away from the end face 12. The wall 1211 is parallel to the end face 12 and is located between the two walls 1212.

[0039] Two membrane layers 2 are symmetrically arranged along the symmetry line of the two end faces 11. The membrane layer 2 covers the inner wall of the tank body 121. The membrane layer 2 includes a bent portion 21 located at the end. The bent portion 21 is perpendicular to the wall face 1211 and extends away from the wall face 1211. The bent portions 21 of the two membrane layers 2 are attached to the tank body 121 from top to bottom.

[0040] like Figure 2 As shown, the raindrop-patterned color-coated aluminum sheet also includes a stopper plate 3, which is inserted into a groove 121. Specifically, the stopper plate 3 includes a first stopper plate 31 and a second stopper plate 32. The second stopper plate 32 is inserted into the groove 121. The second stopper plate 32 is a cuboid rod-shaped structure made of elastic plastic. The second stopper plate 32 has a groove 322, and the bent portions 21 of both film layers 2 are inserted into the groove 322. The outer wall surface of the second stopper plate 32 is in contact with wall surface 1211 and wall surface 1212.

[0041] The second stopper plate 32 is also provided with a fourth groove 321, which is located on both sides of the second stopper plate 322 and between the first bend 21 and the second wall surface 1212. The first stopper plate 31 is provided with a protrusion 311, the maximum wall thickness of which is greater than the thickness of the fourth groove 321. Specifically, the thickness direction of the fourth groove 321 is perpendicular to the second wall surface 1212, and the thickness of the fourth groove 321 is consistent. The thickness of the protrusion 311 gradually decreases along its insertion direction into the fourth groove 321. The protrusion 311 inserts into and expands the fourth groove 321 so that the inner wall of the second stopper plate 322 presses the two first bends 21 together. At the same time, because the protrusion 311 opens the groove 321, the outer wall of the plug plate 32 presses against the wall surface 1211 and the wall surface 2 1212, thereby pressing the membrane layer 2 between the outer wall of the plug plate 32 and the wall surface 1211 and the wall surface 2 1212, thereby achieving the purpose of preventing the membrane layer 2 from falling off.

[0042] Example 2:

[0043] like Figures 3-12 As shown, a production process for a raindrop-patterned color-coated aluminum sheet is used to process the raindrop-patterned color-coated aluminum sheet of Example 1.

[0044] like Figure 3 , Figure 4 As shown, it includes a base 4, which includes a boss 41 located at the top. The top of the boss 41 is provided with a positioning groove 411, which is used to place and position the aluminum plate body 1.

[0045] like Figure 3 , Figure 4 As shown, it includes a movable block 51, which is located on the left and right sides of the base 4. The movable block 51 can move left and right by driving component 5. The movable block 51 includes a movable plate 511, which is located below the boss 41. The upper surface of the movable plate 511 is set along the horizontal plane.

[0046] like Figure 3 , Figure 4 As shown, it includes a pressure plate 61, which is located on the left and right sides of the base 4. The pressure plate 61 can move left and right by driving component 6. The pressure plate 61 is located outside the boss 41. The bottom surface of the pressure plate 61 is at the same height as the top surface of the moving plate 511.

[0047] like Figure 3 , Figure 4 As shown, the device includes a bending assembly 7, located on the left and right sides of the base 4. The bending assembly 7 includes a second movable block 71 and a cylinder for driving the second movable block 71 to move left and right. The second movable block 71 includes a second movable plate 711, which can extend into the first groove 121. A limit plate 72 is slidably connected to the upper end of the second movable plate 711. A rod 73 is connected to the limit plate 72 and slidably inserted into the second movable block 71. A first spring 74 is provided between the limit plate 72 and the second movable block 71, with both ends of the first spring 74 abutting against the limit plate 72 and the second movable block 71, respectively.

[0048] The specific processing steps are as follows:

[0049] ① Insert the aluminum plate body 1 into the positioning groove 411.

[0050] ②For example Figure 3 , Figure 4 As shown, the two sides of the film layer 2 are bent to form the second bending part 22. The film layer 2 is fitted into the aluminum plate body 1, and the bottom surface of the film layer 2 is attached to the first end face 11. The second bending part 22 is attached to the second end face 12. Before the film layer 2 is attached to the surface of the aluminum plate body 1, the aluminum plate body 1 is coated with adhesive.

[0051] ③ For example Figure 5 As shown, the pressure plate 61 extends to the side of the boss 41, and the pressure plate 61 and the boss 41 press the film layer 2 together. The moving plate 511 extends to the side close to the pressure plate 61 so that the bending part 22 bends to form the bending part 21.

[0052] ④ For example Figure 6 , Figure 7 As shown, the pressure plate 61 moves away from the boss 41, the moving plate 511 moves away from the pressure plate 61, the moving block 71 moves towards the end face 12, and the moving plate 711 extends into the tank 121 to bend the bending part 22, thereby making the film layer 2 fit against the wall of the tank 121.

[0053] When the movable plate 711 extends into the groove 121, the pressure cover 8 presses down so that the film layer 2 is pressed tightly by the pressure cover 8 and the end face 11. The limiting plate 72 abuts against the end face 12 so that the limiting plate 72 and the end face 12 press the bent part 22 tightly, thereby making the film layer 2 more closely attached to the wall of the aluminum plate body 1.

[0054] ⑤ Invert the aluminum plate body 1, insert the positioning groove 411 into the side of the aluminum plate body 1 where the film layer 2 is adhered, and repeat steps ②③④ so that both film layers 2 are adhered to the aluminum plate body 1.

[0055] ⑥ Insert the second stopper plate 32 into the first groove 121, insert the first bent part 21 into the second groove 322, and insert the first stopper plate 31 into the second stopper plate 32, so that the protrusion 311 inserts into and expands the fourth groove 321, thereby pressing the two bent parts 21 tightly against the inner wall of the second groove 322. At the same time, because the protrusion 311 expands the fourth groove 321, the outer wall surface of the second stopper plate 32 presses against the first wall surface 1211 and the second wall surface 1212, thereby pressing the membrane layer 2 between the outer wall surface of the second stopper plate 32 and the first wall surface 1211 and the second wall surface 1212, thereby achieving the purpose of preventing the membrane layer 2 from falling off.

[0056] like Figures 10-12 As shown, when the bent part 21 is inserted into the groove 322, the two are not easy to align, which can easily lead to insertion difficulties. Therefore, an auxiliary tool, the sleeve 9, is used. Figure 12 In the sleeve 9, a slide rod 91 is slidably connected to the inner wall. The slide rod 91 is elongated and its length is greater than the length of the groove 121. A limit rod 92 is slidably connected to the inner wall of the slide rod 91. Specifically, the limit rod 92 includes a convex ring 921, the outer diameter of which is larger than that of the limit rod 92. Grooves 3 911 are provided on both sides of the slide rod 91. The convex ring 921 is inserted into the groove 3 911 and slidably connected. The side of the limit rod 92 away from the convex ring 921 passes through the slide rod 91 and is fixed to the sleeve 9. A spring 2 93 is sleeved on the limit rod 92, and the spring 2 93 abuts against the outer wall of the slide rod 91 and the inner wall of the sleeve 9.

[0057] Insert the two sleeve rods 9 into the groove 121. During insertion, the sliding rod 91 and the sleeve rod 9 retract and move closer together, compressing the spring 93. After insertion, the two sliding rods 91 extend into the groove under the action of their respective springs 93, pressing the two bent portions 21 on both sides. At the same time, the end face of the sleeve rod 9 abuts against the wall surface 1212, so that the position of the bent portion 21 can just match the groove 322 of the plug plate 32, making it easy for the bent portion 21 to be aligned with the groove 322. After the bent portion 21 is initially inserted into the groove 322, remove the two sleeve rods 9 and then install the plug plate 32 into place.

[0058] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A raindrop-patterned color-coated aluminum sheet, characterized in that, The aluminum plate body (1) includes two end faces (11) and two end faces (12). The two end faces (11) are arranged opposite to each other, and the two end faces (12) are also arranged opposite to each other. Both end faces (11) and end faces (12) are covered with a film layer (2). The film layer (2) is symmetrically arranged along the symmetry line of the two end faces (11). The aluminum plate body (1) is provided with a groove (121). The film layer (2) covers the inner wall of the groove (121). The film layer (2) includes a bent portion (21) located at the end. The bent portions (21) of the two film layers (2) are attached to the groove (121). It also includes a stopper plate (3), which is inserted into the first groove (121). The stopper plate (3) includes a first stopper plate (31) and a second stopper plate (32). The second stopper plate (32) is provided with a second groove (322). The first bending part (21) of the two membrane layers (2) is inserted into the second groove (322). The second stopper plate (32) is also provided with a fourth groove (321). The fourth groove (321) is located on both sides of the second groove (322). The first stopper plate (31) is provided with a protrusion (311). The maximum wall thickness of the protrusion (311) is greater than the thickness of the fourth groove (321). The protrusion (311) is inserted into and opens the fourth groove (321) so that the inner wall of the second groove (322) presses the two first bending parts (21) together. The first groove (121) includes a first wall (1211) and a second wall (1212). The second wall (1212) is perpendicular to the second end face (12). The first wall (1211) is located on the side of the second wall (1212) away from the second end face (12). The second plug plate (32) has its walls attached to and press against the first wall (1211) and the second wall (1212).

2. The raindrop-patterned color-coated aluminum sheet according to claim 1, characterized in that, The first wall surface (1211) is parallel to the second end surface (12), the first bending part (21) is perpendicular to the first wall surface (1211), and the fourth groove (321) is located between the first bending part (21) and the second wall surface (1212).

3. The raindrop-patterned color-coated aluminum sheet according to claim 1, characterized in that, The thickness direction of the fourth groove (321) is perpendicular to the second wall (1212), the thickness of the fourth groove (321) remains consistent, and the thickness of the protrusion (311) gradually decreases along the direction in which it is inserted into the fourth groove (321).

4. The raindrop-patterned color-coated aluminum sheet according to claim 1, characterized in that, The second stopper (32) is made of an elastic material.

5. The production process of a raindrop-patterned color-coated aluminum sheet according to any one of claims 1-4, characterized in that, The equipment used in the production process includes a base (4), the base (4) includes a boss (41) located at the top, and the top of the boss (41) is provided with a positioning groove (411); It includes a movable block (51), which is capable of moving left and right. The movable block (51) includes a movable plate (511), which is located below the boss (41). Includes a pressure plate (61), which is capable of moving left and right, and the pressure plate (61) is located outside the boss (41); Includes a bending assembly (7), the bending assembly (7) includes a second movable block (71), the second movable block (71) is capable of moving left and right, the second movable block (71) includes a second movable plate (711), the second movable plate (711) is capable of extending into the first groove (121); The production process includes the following steps: ① The aluminum plate body (1) is inserted into the positioning groove (411); ② The membrane layer (2) is bent on both sides to form a second bending part (22). The membrane layer (2) is fitted into the aluminum plate body (1). The bottom surface of the membrane layer (2) is attached to the first end face (11). The second bending part (22) is attached to the second end face (12). ③ The pressure plate (61) extends toward the boss (41) side, and the pressure plate (61) and the boss (41) press the film layer (2) together. The moving plate (511) extends toward the side close to the pressure plate (61) so that the bending part (22) bends to form the bending part (21). ④ The pressure plate (61) moves away from the boss (41), the moving plate one (511) moves away from the pressure plate (61), the moving block two (71) moves closer to the end face two (12), and the moving plate two (711) extends into the groove one (121) to bend the bending part two (22), thereby making the film layer (2) fit against the wall of the groove one (121); ⑤ Invert the aluminum plate body (1), insert the aluminum plate body (1) into the positioning groove (411) on the side of the film layer (2) attached to it, and repeat steps ②③④; ⑥ Insert the plug plate 2 (32) into the first groove (121), insert the first bending part (21) into the second groove (322), and insert the protrusion (311) into and open the fourth groove (321) so that the inner wall of the second groove (322) presses the two first bending parts (21) together.

6. The production process according to claim 5, characterized in that, The bottom surface of the pressure plate (61) is at the same height as the top surface of the movable plate (511).

7. The production process according to claim 5, characterized in that, The upper end of the movable plate two (711) is slidably connected to the limiting plate (72). When the movable plate two (711) extends into the groove one (121), the limiting plate (72) and the end face two (12) press against the bent part two (22).

8. The production process according to claim 7, characterized in that, The limiting plate (72) is connected to a rod (73), which is slidably inserted into the second moving block (71). A spring (74) is provided between the limiting plate (72) and the second moving block (71), with the two ends of the spring (74) abutting against the limiting plate (72) and the second moving block (71) respectively.

9. A production process according to claim 5, characterized in that, The aluminum plate body (1) is coated with adhesive and then bonded to the film layer (2).

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