Stainless steel color plate for commercial refrigerator and spraying device

Abstract

The stainless steel color plate comprises a stainless steel plate, a mirror surface layer, a first zinc coating and a coating layer which are sequentially arranged in the thickness direction of the stainless steel color plate, a varnish layer is arranged on the side, away from the stainless steel plate, of the coating layer, and an anti-fingerprint layer is arranged on the side, away from the coating layer, of the varnish layer. The method has the effects that the attractiveness of the stainless steel surface is improved, and the stainless steel surface is protected against corrosion and oxidation.

Description

Technical Field

[0001] The present application relates to the field of stainless steel, and in particular to a stainless steel color plate and a spraying device for commercial refrigerators. Background Art

[0002] Commercial refrigerators refer to refrigerated or frozen freezers that are sold in supermarkets, cold drink shops, frozen food shops, hotels and restaurants and other commercial channels for storing ice cream, beverages, dairy products, quick-frozen foods, food materials, etc. The shell of commercial refrigerators is made of colored stainless steel plates, which have the characteristics of strong corrosion resistance, high mechanical properties, long-lasting color surface, and color changes with different light angles.

[0003] In the related art, colored stainless steel plates need to firstly be subjected to surface treatment on the surface of the stainless steel plates, such as polishing, frosting and etching, and then the stainless steel surface is electroplated and colored.

[0004] With regard to the above-mentioned related technologies, the surface of the stainless steel plate becomes uneven after surface treatments such as mechanical polishing, frosting, and etching. Dirt and grime are easily hidden in the recessed areas, and traces such as handprints and fingerprints are easily left, which not only affects the appearance, but may also cause surface oxidation, corrosion and other problems. Utility Model Content

[0005] In order to improve the aesthetics of the stainless steel surface and protect it from corrosion and oxidation, the present application provides a stainless steel color plate and a spraying device for a commercial refrigerator.

[0006] In a first aspect, the present application provides a stainless steel color plate for commercial refrigerators, comprising a stainless steel plate, a mirror layer, a first galvanized layer and a paint layer arranged in sequence along the thickness direction thereof, wherein a varnish layer is provided on a side of the paint layer away from the stainless steel plate, and an anti-fingerprint layer is provided on a side of the varnish layer away from the paint layer.

[0007] By adopting the above technical scheme, the surface of the stainless steel is firstly treated to form a mirror layer, and then a layer of zinc is plated on the surface of the mirror layer to form a first galvanized layer, so as to increase the corrosion resistance and rust resistance of the stainless steel, and then the outside of the galvanized layer is colored, so that the products made of stainless steel are more beautiful, and high-gloss varnish is sprayed on the surface of the coating layer to form a varnish layer. The varnish layer is a transparent coating film with a waterproof effect, and an anti-fingerprint layer is added on the surface of the varnish layer, which can effectively prevent fingerprints, handprints and other stains from leaving marks on the stainless steel surface, and has excellent wear resistance, scratch resistance, corrosion resistance and other properties, and can effectively protect the stainless steel surface from corrosion and oxidation.

[0008] Optionally, a second galvanized layer is provided on a side of the stainless steel plate away from the first galvanized layer.

[0009] By adopting the above technical solution, the corrosion resistance and rust resistance of the lower surface of the stainless steel plate are improved.

[0010] Optionally, a heat insulation layer is provided on the side of the second galvanized layer away from the stainless steel plate.

[0011] By adopting the above technical solution, the refrigerator part is made of colored stainless steel plates, which increases the insulation layer, reduces the heat exchange inside and outside the refrigerator, and reduces the energy consumption of the refrigerator.

[0012] Optionally, the anti-fingerprint layer is a transparent nano coating.

[0013] By adopting the above technical solution, the transparent nano coating makes the color of the paint layer more clearly displayed and makes the surface of the stainless steel smoother.

[0014] On the second aspect, the present application also provides a spraying device, including a spray box, a sprayer and a plurality of conveying rollers. Support frames are provided at both ends of the conveying rollers. The conveying rollers are evenly arranged along the horizontal extension direction of the support frames. The support frames pass through the spray box. The spray box is provided with a channel for conveying rollers and stainless steel plates to pass through along the arrangement direction of the conveying rollers. The sprayer is located in the spray box and directly above the conveying rollers. A moving block is fixedly provided on the spray box near the upper wall of the spray box. A limiting rod and a screw rod parallel to each other are provided on the spray box. The screw rod is rotatably connected to the spray box, the limiting rod is slidably connected to the moving block along a direction perpendicular to the arrangement direction of the conveying rollers, and the screw rod is threadedly connected to the moving block.

[0015] By adopting the above technical solution, the conveying roller carries the stainless steel plate forward. When the stainless steel plate enters the spray box, the sprayer sprays the upper surface of the stainless steel plate to form an anti-fingerprint layer on the upper surface of the stainless steel plate. In order to make the upper surface of the stainless steel plate be sprayed evenly, a motor is used to drive the screw to rotate, and the rotation of the screw drives the moving block to reciprocate. The moving block is connected to the sprayer, and the sprayer reciprocates with the moving block to achieve a uniform thickness of the anti-fingerprint layer formed on the stainless steel surface.

[0016] Optionally, the sprayer includes a main pipe and a plurality of spray heads, the spray heads are arranged on the lower side of the main pipe and are evenly arranged along the axis of the main pipe, a hose is provided on the side of the main pipe away from the spray heads, and a feed pipe is provided on one end of the hose away from the main pipe.

[0017] By adopting the above technical solution, the sprayer includes multiple spray heads, which increases the spraying efficiency, and the hose is provided to facilitate the reciprocating movement of the sprayer.

[0018] Optionally, a recovery box is provided in the spray box, the upper end of the recovery box is open and faces the conveying roller, the upper end of the recovery box is provided with a filtering device, the lower end of the recovery box is connected to the feed pipe, and a stuffing tube is inserted into the side wall of the recovery box near the lower end surface of the filtering device, and the end of the stuffing tube away from the recovery box passes through the spray box and extends outward.

[0019] By adopting the above technical solution, the recovery box is used to recover the paint left between the conveying rollers after the sprayer sprays, thereby reducing waste and saving costs.

[0020] Optionally, baffle plates are provided on two horizontally opposite sides of the sprayer, and a cylinder is provided horizontally on the side of the baffle plate away from the sprayer. The movement direction of the cylinder output shaft is the same as the extension direction of the conveying roller axis, and the cylinder body is fixedly connected to the spray box.

[0021] By adopting the above technical solution, the baffle plate ensures that the paint sprayed by the sprayer can only be sprayed onto the stainless steel plate and will not be sprayed outside. The paint can only flow back into the recovery box, thereby reducing waste and saving costs.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. First, the surface of the stainless steel is treated to form a mirror layer, and then a layer of zinc is plated on the surface of the mirror layer to form the first galvanized layer to increase the corrosion resistance and rust resistance of the stainless steel. Then the galvanized layer is colored to make the products made of stainless steel more beautiful. High-gloss varnish is sprayed on the surface of the coating layer to form a varnish layer. The varnish layer is a transparent coating with a waterproof effect. An anti-fingerprint layer is added on the surface of the varnish layer to effectively prevent fingerprints, handprints and other stains from leaving marks on the stainless steel surface. It has excellent wear resistance, scratch resistance, corrosion resistance and other properties, and can effectively protect the stainless steel surface from corrosion and oxidation;

[0024] 2. Improve the corrosion and rust resistance of the lower surface of the stainless steel plate;

[0025] 3. The refrigerator part is made of colored stainless steel plates to increase the insulation layer, reduce the heat exchange inside and outside the refrigerator, and reduce the energy consumption of the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a cross-sectional schematic diagram of a stainless steel color plate for commercial refrigerators.

[0027] Figure 2 The present invention is a schematic diagram of the overall structure of a spraying device.

[0028] Figure 3 This is a schematic diagram of part of the structure inside the spray box.

[0029] Explanation of the accompanying drawings: 1. stainless steel plate; 2. mirror layer; 3. first galvanized layer; 31. second galvanized layer; 32. thermal insulation layer; 4. coating layer; 41. varnish layer; 42. anti-fingerprint layer; 5. spray box; 51. moving block; 52. limit rod; 53. screw; 6. sprayer; 61. main pipe; 62. spray head; 63. hose; 64. feed pipe; 65. recovery box; 651. filter device; 652. stuffing pipe; 7. conveying roller; 71. support frame; 8. baffle plate; 81. cylinder. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0031] Example 1

[0032] In a first aspect, Example 1 of the present application discloses a stainless steel color plate for a commercial refrigerator.

[0033] Reference Figure 1 A stainless steel color plate for commercial refrigerators comprises a stainless steel plate 1, a mirror layer 2, a first galvanized layer 3 and a coating layer 4 which are sequentially arranged along the thickness direction thereof, a varnish layer 41 is arranged on the side of the coating layer 4 away from the stainless steel plate 1, and an anti-fingerprint layer 42 is arranged on the side of the varnish layer 41 away from the coating layer 4.

[0034] Reference Figure 1 , wherein the surface of the stainless steel plate 1 is polished by a polishing device with a grinding liquid to make the plate surface flat and as clear as a mirror, forming a mirror layer 2, so that the surface of the stainless steel plate 1 is smooth and has high plasticity, toughness and mechanical strength.

[0035] Reference Figure 1 The mirror layer 2 is galvanized. The galvanizing can improve the corrosion resistance and rust resistance of the lower surface of the stainless steel plate 1 and extend the service life of the stainless steel plate 1. The first galvanized layer 3 is generated on the upper surface and the second galvanized layer 31 is generated on the lower surface.

[0036] Reference Figure 1 A coating is sprayed on the surface of the first galvanized layer 3 to form a coating layer 4, wherein the coating may be a coating containing metal particles such as aluminum and titanium and resin. This coating can form a layer of white metal coating layer 4 through a special baking process, which has the characteristics of being hard, not easy to scratch, and anti-pollution.

[0037] Reference Figure 1 A high-gloss varnish is coated on the surface of the coating layer 4 to form a varnish layer 41. The varnish layer 41 is a transparent coating film that can show the color of the coating layer 4 of the stainless steel plate 1, has a waterproof effect, and reduces the corrosion and rust of the stainless steel plate 1 caused by water.

[0038] Reference Figure 1 A special coating protective layer is coated on the surface of the varnish layer 41 to form an anti-fingerprint layer 42, which is formed by rolling and drying a transparent nano-metal rolling liquid to form a transparent and hard solid protective film firmly bonded to the surface of the stainless steel plate 1, which can improve the weather resistance, aesthetics and anti-pollution properties of the stainless steel.

[0039] Reference Figure 1 A heat-insulating coating is applied on the surface of the second galvanized layer 31 to form a heat-insulating layer 32. The colored stainless steel plate 1 is used to produce commercial refrigerators, which can reduce heat exchange inside and outside the refrigerators and reduce the refrigeration energy consumption of the refrigerators.

[0040] The implementation principle of a stainless steel color plate for a commercial refrigerator in an embodiment of the present application is as follows: first, the surface of the stainless steel is surface-treated to form a mirror layer 2, and then a layer of zinc is plated on the surface of the mirror layer 2 to form a first galvanized layer 3 to increase the corrosion resistance and rust resistance of the stainless steel, and then the outside of the galvanized layer is colored to make the product made of stainless steel more beautiful, and a high-gloss varnish is sprayed on the surface of the coating layer 4 to form a varnish layer 41. The varnish layer 41 is a transparent coating film with a waterproof effect. A layer of anti-fingerprint layer 42 is added on the surface of the varnish layer 41 to effectively prevent fingerprints, handprints and other stains from leaving marks on the stainless steel surface, and has excellent wear resistance, scratch resistance, corrosion resistance and other properties, and can effectively protect the stainless steel surface from corrosion and oxidation.

[0041] Example 2

[0042] In a second aspect, Example 2 of the present application discloses a spraying device.

[0043] Reference Figure 2 and Figure 3 A spraying device includes a spray box 5, a limiting rod 52 and a screw 53 which are parallel to each other are provided at the upper end of the spray box 5, a motor is provided on the outer wall of the spray box 5, the motor rotating shaft is coaxially fixedly connected with the screw 53, a moving block 51 is provided in the spray box 5, the limiting rod 52 is slidably connected with the moving block 51 along the axial direction of the limiting rod 52, the screw 53 is threadedly connected with the moving block 51, the motor is used to drive the screw 53 to rotate, the rotation of the screw 53 drives the moving block 51 to reciprocate, the limiting rod 52 ensures that the moving block 51 does not rotate during movement, so that the moving block 51 reciprocates along the spiral direction of the screw 53.

[0044] Reference Figure 3 The movable block 51 is connected to a sprayer 6, which includes a main pipe 61 and a plurality of spray heads 62. The plurality of spray heads 62 are provided to increase the spraying efficiency. The spray heads 62 are provided on the lower side of the main pipe 61 and are evenly arranged along the axial direction of the main pipe 61 to make the spraying more uniform. A hose 63 is provided on the side of the main pipe 61 away from the spray heads 62. The hose 63 is provided to facilitate the reciprocating movement of the sprayer 6.

[0045] Reference Figure 3, a recovery box 65 is provided at the lower end of the spray box 5, and a feeding pipe 64 is provided at a position near the lower end of the side wall of the recovery box 65. The end of the feeding pipe 64 away from the recovery box 65 is connected to the hose 63, and the paint in the recovery box 65 enters the hose 63 through the feeding pipe 64 and then enters the main pipe 61, and finally sprays out from the spray head 62; a filtering device 651 is provided at the upper end of the recovery box 65, and the paint sprayed from the sprayer 6 passes through the stainless steel plate 1 and the conveying roller 7, and the excess paint flows into the recovery box 65. The filtering device 651 filters this part of the excess paint, filters out the impurities therein, and the clean paint enters the recovery box 65 for cyclic spraying, which reduces the waste of paint and saves costs; a filling pipe 652 is inserted at a position near the lower end surface of the filtering device 651 on the side wall of the recovery box 65, and the end of the filling pipe 652 away from the recovery box 65 extends outward through the spray box 5. When the paint in the recovery box 65 is less, the paint capacity in the recovery box 65 can be increased by inputting paint into the filling pipe 652.

[0046] Reference Figure 3 A plurality of conveying rollers 7 are arranged above the recovery box 65. The conveying rollers 7 are evenly arranged horizontally in a direction perpendicular to the axis of the limiting rod 52. Support frames 71 are provided at both ends of the conveying rollers 7. The rotation of the conveying rollers 7 drives the stainless steel plate 1 into the spray box 5 for spraying the anti-fingerprint layer 42. The support frame 71 passes through the spray box 5. The spray box 5 is provided with a channel for the conveying rollers 7 and the stainless steel plate 1 to pass through.

[0047] Reference Figure 3 , baffle plates 8 are provided at both ends of the sprayer 6, and a cylinder 81 is provided in the horizontal direction on the side of the baffle plate 8 away from the sprayer 6. The movement direction of the output shaft of the cylinder 81 is the same as the extension direction of the axis of the conveying roller 7. The cylinder 81 is fixedly connected to the spray box 5. The baffle plate 8 allows the paint sprayed by the sprayer 6 to be sprayed only onto the stainless steel plate 1 and not outside. The paint flows downward along the surface of the baffle plate 8 into the recovery box 65. The cylinder 81 is used to push the baffle plate 8 so that the two baffle plates 8 are close to or away from each other to adapt to stainless steel plates 1 of different widths.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A stainless steel color plate for commercial refrigerators, comprising a stainless steel plate (1), a mirror layer (2), a first galvanized layer (3) and a coating layer (4) arranged in sequence along the thickness direction of the stainless steel plate, characterized in that: A varnish layer (41) is provided on the side of the coating layer (4) away from the stainless steel plate (1), and an anti-fingerprint layer (42) is provided on the side of the varnish layer (41) away from the coating layer (4).

2. The stainless steel color plate for commercial refrigerator according to claim 1, characterized in that: A second galvanized layer (31) is provided on a side of the stainless steel plate (1) away from the first galvanized layer (3).

3. The stainless steel color plate for commercial refrigerator according to claim 2, characterized in that: A heat insulation layer (32) is provided on the side of the second galvanized layer (31) away from the stainless steel plate (1).

4. The stainless steel color plate for commercial refrigerator according to claim 1, characterized in that: The anti-fingerprint layer (42) is a transparent nano coating.

5. A spraying device, applied to a stainless steel color plate for commercial refrigerators as claimed in any one of claims 1 to 4, characterized in that: The invention comprises a spray box (5), a sprayer (6) and a plurality of conveying rollers (7), wherein support frames (71) are provided at both ends of the conveying rollers (7), the conveying rollers (7) are evenly arranged along the horizontal extension direction of the support frames (71), the support frames (71) pass through the spray box (5), the spray box (5) is provided with a passage for the conveying rollers (7) and the stainless steel plate (1) to pass along the arrangement direction of the conveying rollers (7), the sprayer (6) is located in the spray box (5) and directly above the conveying rollers (7), a moving block (51) is fixedly provided near the upper wall of the spray box (5), a limiting rod (52) and a screw (53) parallel to each other are provided on the spray box, the screw (53) is rotatably connected to the spray box, the limiting rod (52) is slidably connected to the moving block (51) along the direction perpendicular to the arrangement direction of the conveying rollers (7), and the screw (53) is threadedly connected to the moving block (51).

6. A spraying device according to claim 5, characterized in that: The sprayer (6) comprises a main pipe (61) and a plurality of spray heads (62). The spray heads (62) are arranged at the lower side of the main pipe (61) and are evenly arranged along the axis direction of the main pipe (61). A hose (63) is provided on the side of the main pipe (61) away from the spray heads (62). A feed pipe (64) is provided on the end of the hose (63) away from the main pipe (61).

7. A spraying device according to claim 5, characterized in that: A recovery box (65) is provided in the spray box (5), the upper end of the recovery box (65) is open and faces the conveying roller (7), the upper end of the recovery box (65) is provided with a filtering device (651), the lower end of the recovery box (65) is connected to the feed pipe (64), a stuffing tube (652) is inserted into the side wall of the recovery box (65) near the lower end surface of the filtering device (651), and the end of the stuffing tube (652) away from the recovery box (65) passes through the spray box (5) and extends outward.

8. A spraying device according to claim 5, characterized in that: The sprayer (6) is provided with material baffles (8) on two horizontally opposite sides, and a cylinder (81) is provided in the horizontal direction on the side of the material baffle (8) away from the sprayer (6). The movement direction of the output shaft of the cylinder (81) is the same as the extension direction of the axis of the conveying roller (7), and the cylinder body of the cylinder (81) is fixedly connected to the spray box (5).

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