CN117530577A - Hemming cooker and manufacturing method thereof - Google Patents

Abstract

The invention provides a curling pot and a manufacturing method of the pot, and belongs to the technical field of cooking appliances. The cooker comprises a cooker body, wherein the cooker body is stretched or die-cast to form a bottom wall and a side wall, and the upper edge of the top of the side wall of the cooker body is turned outwards to be connected with the side wall of the cooker body to form a curled edge; the outer surface of the side wall of the pot body is provided with a colored primer layer, the primer layer at least partially covers the connection position of the bottom of the curled edge and the side wall of the pot body, and the primer layer seals a gap formed between the bottom of the curled edge and the side wall of the pot body. According to the hemming pot and the manufacturing method of the pot, full-automatic spraying of the paint layer of the hemming pot is achieved, appearance attractiveness and uniformity of the hemming pot are remarkably improved, meanwhile, the problem that color of the bottom of the hemming is uneven due to the fact that a manual wiping oil removing mode is not needed in a manufacturing process is avoided, the manufacturing process is effectively simplified, production efficiency is improved, production cost and reject ratio of products are reduced, and quality stability of final pot products is maintained.

Description

Hemming cooker and manufacturing method thereof

Technical Field

The invention discloses a curling cooker and a manufacturing method of the cooker, which relate to the technical field of cooking appliances.

Background

The existing hemming pot manufacturing process is characterized in that after the hemming step is finished, the outer wall of the pot body is sprayed with paint, and high-temperature sintering is needed after the spraying is finished. However, in the high-temperature sintering step, the bottom of the hemming structure of the hemming pot manufactured by the process flow is easy to generate areas with uneven colors after the pot body is heated, so that stains are formed, and the attractiveness of the product is seriously affected.

In order to solve the above problems in the manufacturing process as much as possible, a manner of manually wiping the pot body with cloth is generally adopted, for example, a worker manually wipes the upper edge of the pot body before and after the curling and the inner side wall of the curled edge after the curling, however, the manner is time-consuming and labor-consuming, and it is difficult to realize the improvement of the product aesthetic property and realize the efficient and automatic production.

Disclosure of Invention

In order to solve the problems, the invention aims to provide the curling pot which can simplify the manufacturing process and simultaneously ensure that the color of each position of the curling structure including the bottom is uniform, thereby remarkably improving the product attractiveness and the use experience.

In one aspect, the application provides a hemming pot, comprising a pot body, wherein the pot body comprises a bottom wall and a side wall, and the upper edge of the top of the side wall of the pot body is turned outwards to be connected with the side wall of the pot body to form a hemming;

the outer surface of the side wall of the pot body is provided with a colored primer layer, the primer layer at least partially covers the connection position of the bottom of the curled edge and the side wall of the pot body, and the primer layer seals a gap formed between the bottom of the curled edge and the side wall of the pot body.

Optionally, the primer layer is dark in color, such as black or other color capable of covering or harmonizing stains.

In one embodiment, the primer layer covers at least the entire bead and extends downwardly toward the bottom of the pan at least a portion of the pan sidewall area to further enhance the uniformity of color throughout the outer wall of the final pan product.

In one embodiment, the primer layer covers the area of the side wall of the pot body extending from the top of the rolled edge to the bottom of the side wall to 1/3-1/2 of the height of the pot body; and/or the number of the groups of groups,

the thickness of the primer layer is 5-10 mu m.

Alternatively, the primer layer may have a thickness of 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm.

In one embodiment, the outer surface of the side wall of the pot body is further provided with a middle paint layer, and the middle paint layer at least partially covers the primer layer.

In one embodiment, the middle paint layer covers the outer surfaces of the side wall and the bottom wall of the pot body; and/or the number of the groups of groups,

the thickness of the middle paint layer is 8-13 mu m.

Alternatively, the thickness of the middle lacquer layer may be 8 μm, 9 μm, 10 μm, 11 μm, 12 μm, 13 μm.

The preset color of the middle paint layer is the color to be displayed on the outer wall of the pot body.

In one embodiment, the middle paint layer covers the outer surfaces of the side wall and the bottom wall of the pot body.

It is understood that the middle paint layer covers the side wall of the pot body and comprises the whole hemming structure and the side wall outside the hemming.

In one embodiment, a top coat layer is further arranged on the outer surface of the side wall of the pot body, and the top coat layer covers the middle coat layer.

In one embodiment, the topcoat layer is sintered after baking to achieve a certain non-stick property.

In one embodiment, the topcoat layer has a thickness of 4 to 7 μm.

Alternatively, the thickness of the topcoat layer may be 4 μm, 5 μm, 6 μm, 7 μm.

In one embodiment, the topcoat layer is clear.

Wherein the transparent top coat layer can penetrate the color of the middle coat layer. In another embodiment, the top coat layer can also adopt the color for harmonizing the color of the middle paint layer, so that the overall color of the outer wall of the pot body meets the corresponding requirement.

In one embodiment, the primer layer or the middle paint layer or the top paint layer is made of teflon, ceramic paint or organic silicon paint.

In one embodiment, the primer layer or the middle paint layer or the top paint layer is attached to the outer wall of the pot body in a spray gun spraying mode.

Preferably, the spray gun can be arranged at an angle capable of spraying on the area to be sprayed on the outer surface of the pot body.

Preferably, the spray guns can be arranged in multiple or groups for spraying the coating of different paint layers.

Preferably, after each spraying of one layer, the coating is dried at a high temperature of between 100 and 160 ℃ for 10 to 20 minutes.

On the other hand, the application also provides a manufacturing method of the pot, which comprises the following steps:

spraying a colored coating on the outer surface of the pot body, wherein the coating is used for at least spraying and coating the joint position of the curled bottom of the pot body and the side wall of the pot body so as to form a primer layer;

and spraying a paint with a preset color on the outer surface of the pot body, wherein the paint covers the primer layer to form a middle paint layer.

Optionally, the method may further comprise the step of continuing to spray the top coat layer onto the pot on which the middle coat layer has been sprayed, wherein the top coat layer completely covers the middle coat layer.

In one embodiment, the coating is sprayed using a spray gun, and the pan body is kept rotating continuously while the coating is sprayed;

the spray guns comprise a plurality of spray guns, at least one spray gun forms a first spray gun group, and at least two spray guns form a second spray gun group; the first spray gun group is used for spraying the paint forming the primer layer, and the paint sprayed by the first spray gun group at least can cover the connection position of the bottom of the pot body curling and the side wall; the second spray gun group is used for spraying the paint forming the middle paint layer, and the paint sprayed by the second spray gun group at least completely covers the primer layer.

The color of each layer of the outer side wall of the curling pot is different or even has obvious difference, so that the plurality of spray guns and the plurality of spray guns are arranged in groups, each spray gun can be only used for spraying paint with one color, and further, the problem that the color of the outer wall of a final pot product is not ideal due to color mixing caused by the fact that the spray guns are used for spraying paint with different colors of different coatings can be effectively prevented.

In one embodiment, the positions and orientations of the first spray gun set and the second spray gun set are kept fixed, the pot body to be sprayed passes through the first spray gun set and the second spray gun set in sequence, and the pot body keeps rotating at a constant speed when passing through the first spray gun set and the second spray gun set.

Wherein, the spray gun which keeps fixed towards can make the spraying flow keep stable more easily, help making the thickness of everywhere of paint layer more even. Meanwhile, the pot body rotating at a constant speed can be matched with the spray gun with fixed orientation on one hand, so that the spray gun can spray all positions on the outer wall of the pot body, and on the other hand, the thickness of each paint layer can be assisted to be more uniform.

In one embodiment, the outer surface of the pot body comprises a first area, a second area and a third area, wherein the first area is an area extending from the top of the rolled edge to the bottom of the side wall to 1/3-1/2 of the height of the pot body, the second area is other areas except the first area in the outer surface of the side wall, and the third area is an outer surface area of the bottom wall;

the second spray gun group at least comprises three spray guns, the three spray guns are arranged along the vertical direction, and the three spray guns are respectively used for spraying paint to the first area, the second area and the third area.

Wherein, the setting of a plurality of spray guns can avoid the coating inhomogeneous of paint layer coating that the too big spraying scope of independent spray gun leads to, especially primer layer department sets up three spray guns and sprays the control primer layer thickness that can be better even, and then better improvement final pan product outward appearance's aesthetic property.

In one embodiment, the pot body is heated or cooled to 30-40 ℃ before coating, and is dried for 10-20min at 100-160 ℃ after coating; and/or sintering at a temperature of 400-410 ℃.

The application has at least the following beneficial effects:

1. according to the curling pot, the color primer layer is arranged at the connecting position of the bottom of the curling and the side wall of the pot body, so that on one hand, the area where color unevenness is easy to occur at the bottom of the curling can be covered, stains and color changes brought to the bottom of the curling are avoided, and the attractive degree of a product is improved; on the other hand, the primer layer seals the gap formed between the bottom of the curled edge and the side wall of the pot body, which is helpful for reducing the outflow of greasy dirt, thereby reducing the probability of forming the greasy dirt. In addition, the primer layer can be preset to have a color, so that the color of the primer layer is uniform and consistent with that of the whole outer wall of the final pot body, and the aesthetic feeling and the user experience of the product are further improved.

2. According to the manufacturing method of the pot, the mode that the pot body rotates to combine with a plurality of groups of spray guns to fix the direction spraying is adopted, the operation is simple, full-automatic spraying of the paint layer of the curling pot is achieved, the appearance attractiveness and uniformity of the curling pot are remarkably improved, meanwhile, the problem that the color of the bottom of the curling pot is uneven in a mode of manually wiping and degreasing is avoided in the manufacturing process, the manufacturing process is effectively simplified, the production efficiency is improved, the production cost and the reject ratio of products are reduced, and the quality stability of the final pot product is maintained.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described, and it is possible for a person skilled in the art to obtain other drawings from these drawings without inventive effort.

In the drawings:

FIG. 1 is a schematic view of one embodiment of a hemming cooker provided herein;

fig. 2 is an enlarged view of a portion a in fig. 1;

FIG. 3 is a schematic illustration of the flow line production of the method of manufacturing the cookware of the present application;

FIG. 4 is a schematic view of a spray gun arrangement in a method of manufacturing a pan of the present application;

in the figure:

1. a pot body; 2. a bottom wall; 3. a sidewall; 4. hemming; 5. a connection location; 6. curling the top; 7. greasy dirt; 8. leakage of greasy dirt; 9. a primer layer; 10. a middle paint layer; 11. a top coat layer; 12. a first region; 13. a second region; 14. a third region; 15. a first spray gun; 16. a second spray gun; 17. a third spray gun; 18. a first spray gun set; 19. a second spray gun set; 20. a third spray gun set; 21. a pipeline; a. a primer layer spraying range line; b. spraying a range edge line; c. a forward direction.

Detailed Description

In order to more clearly illustrate the general inventive concept, reference will be made in the following detailed description, by way of example, to the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than as described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," etc. indicate or refer to an azimuth or a positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Example 1 hemming cookware

The embodiment aims to provide the curling pot which can enable the color uniformity of the curling structure including the bottom part when the curling pot is used while simplifying the manufacturing process, and remarkably improves the product attractiveness and the use experience.

As shown in fig. 1, one embodiment of the present application provides a hemming pot comprising a pot 1, wherein the pot 1 is formed with a bottom wall 2 and a side wall 3 by stretching or die casting, and is turned out to be connected with the side wall 3 of the pot 1 on top of the side wall 3 of the pot 1 to form a hem 4, and the lower end bottom of the hem 4 has a connection position 5 with the side wall 3.

The curling pot shown in fig. 1 usually comprises an oiling step in the stretching or die casting manufacturing process, so that oil stains on the upper edge of the pot body need to be wiped off by cloth in a manual mode before the curling step is carried out, so that the oil stains on the edge are prevented from being curled into the inner side of the curling 4 during the curling, or the oil stains are manually cleaned by a tiny tool after the curling. However, the manual treatment method is difficult to ensure complete removal of greasy dirt, partial greasy dirt is easy to remain on the inner side of the curled edge 4, and then when high-temperature sintering is carried out after coating is finished, the greasy dirt on the inner side of the curled edge 4 is heated and melted, so that the greasy dirt is easy to overflow from a gap at a connecting position 5 of the lower end of the curled edge and the side wall of the pot body, stains which cannot be removed are formed, the product attractiveness is seriously affected, the manual wiping efficiency is very low, the wiping quality is difficult to ensure, and the cost and the rejection rate are very high.

Referring to fig. 2, in order to improve the aesthetic property of the final curling pot product, in this embodiment, a colored primer layer 9 is disposed on the outer surface of the side wall 3 of the pot body 1, the primer layer 9 at least covers the connection position 5 between the bottom of the curl 4 and the side wall 3 of the pot body, and the primer layer 9 seals the gap formed between the bottom of the curl 4 and the side wall 3 of the pot body. As shown in fig. 2, the pot without degreasing step or without degreasing has residual greasy dirt 7 on the inner side of the curl 4 after sintering at high temperature, and the greasy dirt 7 oozes out from the gap between the curl 4 and the sidewall 3 to form leakage greasy dirt 8. The curling pot provided by the embodiment is provided with the primer layer 9 with color at the connection position 5 between the bottom of the curling 4 and the side wall 3 of the pot body, so that on one hand, the area with uneven color easily appearing at the bottom of the curling 4 can be covered, and the stain and the color change brought by the stain at the bottom of the curling 4 are relieved, thereby being beneficial to improving the aesthetic degree of the product; on the other hand, the primer layer 9 can be preset to have a color, so that the color of the whole connecting position 5 and the outer wall of the final pot body is uniform and consistent, and the aesthetic feeling and the user experience of the product are further improved; furthermore, the primer layer 9 seals the gap formed between the bottom of the curled edge 4 and the side wall 3 of the pot body, so that the leakage probability of oil stains can be reduced to a certain extent, and the leakage probability of the oil stains 8 is reduced. Meanwhile, under the above effect brought by the primer layer 9, the problem of nonuniform color at the bottom of the curled edge is avoided in a mode of manually wiping and degreasing in the manufacturing process, so that the manufacturing process is effectively simplified, and the production efficiency is improved.

In a preferred embodiment, the primer layer 9 is dark in color, such as black or other color that can cover or harmonize the stain, for better coverage of the leaked oil stain 8.

Wherein, in order to make the color of the primer layer 9 completely cover the leaked greasy dirt 8, the thickness of the primer layer 9 is 5-10 mu m. Alternatively, the thickness of the primer layer 9 may be 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm.

Referring to fig. 1 and 2 in combination, to further enhance the uniformity of color throughout the outer wall of the final cookware product, a primer layer 9 covers at least the entire bead 4 and extends downwardly toward the bottom of the pot 1 at least partially over the area of the pot side wall 3. In the preferred embodiment, primer layer 9 covers the area of the side wall 3 of the pot extending from the rim top 6 to the bottom of the side wall 3 to 1/2 of the height of the pot, as shown in fig. 1, primer layer 9 covers the area of primer layer application range line a to the top of the rim 4. This area is the area where the leaked oil stain 8 is likely to appear found in actual production, and thus the primer layer 9 covers this area, which helps to reduce the risk of the leaked oil stain 8.

Referring to fig. 2, in one embodiment, the outer surface of the sidewall 3 of the pot 1 is further provided with a middle paint layer 10, the middle paint layer 10 covers at least the primer layer 9, and the middle paint layer 10 is set to a predetermined color. Wherein, the preset color of the middle paint layer 10 is the color to be displayed on the outer wall of the pot body. The middle paint layer 10 arranged in this way can be used for covering the color of the primer layer 9, meanwhile, the components of the middle paint layer 10 can be similar to the components of the primer layer 9, namely, the components of the middle paint layer 10 and the components of the primer layer 9 are the same except for the components affecting the color, and the paint with the two similar components has better adhesive force, so that the adhesive force between the middle paint layer 10 and the primer layer 9 can be improved.

In one embodiment, in order to make the outer wall of the pot fully reveal the color of the middle paint layer 10, the middle paint layer 10 covers the outer surfaces of the pot side wall 3 and the bottom wall 2. It will be appreciated that the layer of primer 10 covers the side wall 3 of the pot including the entire structure of the bead 4 and the side wall 3 outside the bead 4.

Preferably, the thickness of the intermediate paint layer 10 is 8 to 13 μm. For example, the thickness of the middle paint layer 10 may be 8 μm, 9 μm, 10 μm, 11 μm, 12 μm, 13 μm.

With continued reference to fig. 2, in one embodiment, the outer surface of the side wall 3 of the pan body 1 is further provided with a top coat layer 11, the top coat layer 11 covering the middle coat layer 10. The top-coat layer 11 is transparent, and can transmit the color of the middle paint layer 10, in another embodiment, the top-coat layer 11 can also adopt a color for harmonizing the color of the middle paint layer 10, so that the overall color of the outer wall of the pot body meets the corresponding requirement.

In one embodiment, topcoat 11 is sintered after baking to achieve a certain non-stick property.

Preferably, the thickness of the top coat layer 11 is 4-7 μm to cover both the leaked oil stain 8 and the control cost. For example, it may be 4 μm, 5 μm, 6 μm or 7 μm.

In one embodiment, the primer layer 9 or the intermediate paint layer 10 or the top paint layer 11 is made of teflon, ceramic paint or silicone paint.

It will be appreciated that the color that the primer layer 9 and/or the intermediate paint layer 10 is provided with in this embodiment can exhibit can be achieved by doping or adding pigments, color-developing pigments or metallic elements that develop color after high temperature to the paint.

It will be appreciated that the above embodiments may be applied to round bottom pans or other shapes of pans with curls, in addition to the illustrated pan shape.

In one embodiment, the paint of the primer layer 9 or the intermediate paint layer 10 or the top paint layer 11 is attached to the outer wall of the pot body in a spray gun spraying mode.

Preferably, the spray gun can be arranged at an angle capable of spraying on the area to be sprayed on the outer surface of the pot body 1.

Preferably, the spray guns can be arranged in multiple or groups for spraying the coating of different paint layers.

Preferably, after each spraying of one layer, the coating is dried at a high temperature of between 100 and 160 ℃ for 10 to 20 minutes.

In an embodiment, the embodiment of the application further provides a cooking appliance, including the curling pot provided by the embodiment. Wherein, the cooking utensil is a frying pan, a boiling pan and a milk pan, or an electric cooker, an electric pressure cooker and a cooking machine which take a curled edge pot as an inner container.

Example 2 method for manufacturing cookware

The embodiment provides a method for manufacturing a pot as shown in embodiment 1, which comprises the following steps:

step 1), spraying a colored coating on the outer surface of the pot body 1, wherein the coating is at least sprayed on the connection position 5 of the curled bottom and the side wall of the pot body 1 so as to form a primer layer 9;

step 2), coating the outer surface of the pot body 1 with a paint with a preset color, wherein the paint covers the primer layer 9 to form a middle paint layer 10.

Optionally, the method may further comprise the step of continuing to spray the top coat layer 11 onto the pot on which the middle coat layer 10 has been sprayed, wherein the top coat layer 11 completely covers the middle coat layer 10.

In one embodiment, the method for manufacturing the pot uses a spray gun to spray the paint, and the pot body 1 keeps rotating continuously while the paint is sprayed.

Referring to fig. 3, in order to better ensure the stability of the appearance of the final product of the curling pot, in the spraying step using the spray gun as the spraying tool, the spray gun includes a plurality of spray guns, and at least one spray gun forms a first spray gun set 18, the first spray gun set 18 is used for spraying the paint for forming the primer layer 9, and the paint sprayed by the first spray gun set 18 can cover at least the connection position 5 between the curling bottom and the side wall of the pot body 1. At least two spray guns form a second spray gun set 19, the second spray gun set 19 is used for spraying the paint forming the middle paint layer 10, and the paint sprayed by the second spray gun set 19 at least completely covers the primer layer 9.

Preferably, in the above embodiment, at least two spray guns may be further provided to form a third spray gun set 20, the third spray gun set 20 is used for spraying the paint forming the top coat layer 11, and the paint sprayed by the third spray gun set 20 at least completely covers the middle coat layer 10.

As shown in fig. 3, a first spray gun group 18 composed of one spray gun, a second spray gun group 19 composed of three spray guns, and a third spray gun group 20 composed of three spray guns are juxtaposed in order along the advancing direction of the pot body 1. When the spraying process is performed, the pot body 1 is reversely buckled on the production line 21, and the autorotation pot body 1 moves on the production line 21 along the advancing direction c towards the direction approaching the spray guns, so that the pot body 1 can sequentially pass through the first spray gun group 18, the second spray gun group 19 and the third spray gun group 20, and a primer layer 9, a middle paint layer 10 and a top paint layer 11 which are sequentially overlapped outwards from the base material of the pot body 1 are formed under the spraying of each spray gun group. The spray guns are arranged in groups, so that each spray gun is only used for spraying paint with one color, and further, the problem that the colors of the outer walls of final pot products are not ideal due to color mixing can be effectively prevented when the spray guns are used for spraying paint with different colors of different coatings.

In one embodiment, the positions and orientations of the first spray gun set 18 and the second spray gun set 19 are kept fixed, the pot 1 to be sprayed sequentially passes through the first spray gun set 18 and the second spray gun set 19, and the pot 1 keeps rotating at a constant speed while passing through the first spray gun set 18 and the second spray gun set 19. Wherein, the spray gun which keeps fixed towards can make the spraying flow keep stable more easily, help making the thickness of everywhere of paint layer more even. Meanwhile, the pot body rotating at a constant speed can be matched with the spray gun with fixed orientation on one hand, so that the spray gun can spray all positions on the outer wall of the pot body, and on the other hand, the thickness of each paint layer can be assisted to be more uniform.

Further, a schematic of the spray gun toward a fixed spray gun position is shown in FIG. 4. The outer surface of the pan body 1 is divided into a first area 12, a second area 13 and a third area 14 in order to completely cover the outer wall of the pan body 1, wherein the first area 12 is an area extending from the edge rolling top 6 to the bottom of the side wall to the height of the pan body 1/3-1/2, the second area 13 is other areas except the first area 12 in the outer surface of the side wall 3, and the third area 14 is an outer surface area of the bottom wall 2.

With continued reference to fig. 4, the second spray gun set 19 includes at least three spray guns, the three spray guns are arranged in a vertical direction, the first spray gun 15, the second spray gun 16 and the third spray gun 17 are respectively arranged from low to high, and the first spray gun 15, the second spray gun 16 and the third spray gun 17 are respectively used for spraying paint to the first area 12, the second area 13 and the third area 14, and the edge line of the spraying range of each spray gun is shown as a mark b in fig. 4, that is, the spraying range of each spray gun can completely cover the outer wall of the rotating pot body 1. Wherein, the setting of a plurality of spray guns can avoid the coating inhomogeneous of paint layer coating that the too big spraying scope of independent spray gun leads to, especially primer layer department sets up three spray guns and sprays the control primer layer thickness that can be better even, and then better improvement final pan product outward appearance's aesthetic property.

Of course, the selection of three spray guns for the second spray gun set 19 is determined by the performance of the spray guns commonly used at present, and if other spray guns with better performance are provided, the second spray gun set 19 can also be completed by two spray guns or even one spray gun; if the actual spray gun performance is poor, or the size of the sprayed curling pot is too large, the three spray guns cannot achieve the effect, and the number of the spray guns can be increased appropriately according to the needs, for example, four, five or more spray guns can be selected. In a word, the quantity of the spray guns can be adjusted according to actual conditions.

Preferably, the pot body 1 is heated or cooled to the temperature of 30-40 ℃ before coating, and is dried for 10-20min at the temperature of 100-160 ℃ after coating; and/or sintering at a temperature of 400-410 ℃.

In one embodiment, the method for manufacturing the curling cooker comprises the following steps:

the pot body 1 is reversely buckled on the production line 21 and preheated to about 35 ℃ so as to facilitate the adhesion of the coating; the pot body 1 moves to the first spray gun group 18 along the assembly line 21, the first spray gun group 18 sprays the paint of the primer layer 9 on the outer wall of the pot body 1, the pot body 1 is controlled to rotate at a constant speed while spraying, and the primer layer paint sprayed by the first spray gun group 18 can completely cover the connection position 5 of the curled bottom and the side wall of the curling pot due to the fact that the relative positions of the spray guns in the first spray gun group 18 and the pot body 1 are preset and the orientations of the spray guns are fixed, and then the primer layer 9 is formed, and the thickness of the primer layer 9 is controlled to be 5-10 mu m. After the spraying, the pot body 1 is dried for 10-15min at the high temperature of 140-160 ℃ to ensure that the primer layer 9 is stably attached to the pot body 1 and the color of oil stains oozed out by the curled edge 4 can be covered by the deep color primer.

After the last step, the pot body 1 is cooled to about 35 ℃ so as to facilitate the subsequent spraying process. The pot body 1 continues to move to the second spray gun group 19 along the advancing direction c of the assembly line 21, the second spray gun group 19 sprays the paint of the middle paint layer 10 on the outer wall of the pot body 1, the pot body 1 is controlled to rotate at a uniform speed while spraying, and as the relative positions of the three spray guns in the second spray gun group 19 and the pot body 1 are preset and the orientations of the three spray guns are fixed, the middle paint layer paint sprayed by the second spray gun group 19 can be sprayed on the positions of the first area 12, the second area 13 and the third area 14 on the outer wall of the pot body 1, further completely covers the outer wall of the hemming pot and forms the middle paint layer 10, the thickness of the middle paint layer 10 is controlled to be 8-13 mu m, so that the outer wall of the pot body 1 presents the color of the middle paint layer 10, and is dried at the high temperature of 140-160 ℃ for 10-15min, the middle paint layer 10 is stably attached to the primer layer 9, and the middle paint layer 10 covers the color of the dark color primer layer 9.

After the last step, the pot body 1 is cooled to about 35 ℃, the pot body is continuously moved to the third spray gun group 20 along the advancing direction c of the production line 21, the third spray gun group 20 sprays the paint of the finish paint layer 11 on the outer wall of the pot body 1, the pot body 1 is controlled to rotate at a constant speed while spraying, and the three spray guns in the third spray gun group 20 are respectively arranged at the relative positions with the pot body 1 in a preset manner and fix the orientations of the three spray guns, so that the finish paint layer paint sprayed by the third spray gun group 20 can be sprayed on the positions of the first area 12, the second area 13 and the third area 14 on the outer wall of the pot body 1, further completely covers the outer wall of the curling pot and forms the finish paint layer 11, the thickness of the finish paint layer 11 is controlled to be 4-7 mu m, the finish paint layer 11 is transparent, the color of the middle paint layer 10 can be penetrated out and is presented, the temperature is kept, leveling and dried for 10-20min at 100-150 ℃, the temperature is slowly increased to 400-410 ℃, the temperature is kept for 10-15min, and the temperature is kept for sintering, so that the curling pot with even and obvious improvement of the appearance is obtained.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims (10)

1. The curling pot is characterized by comprising a pot body, wherein the pot body comprises a bottom wall and a side wall, and the upper edge of the top of the side wall of the pot body is outwards turned to be connected with the side wall of the pot body to form a curled edge;

the outer surface of the side wall of the pot body is provided with a colored primer layer, the primer layer at least partially covers the connection position of the bottom of the curled edge and the side wall of the pot body, and the primer layer seals a gap formed between the bottom of the curled edge and the side wall of the pot body.

2. The hemming cooker of claim 1 wherein the primer layer covers an area of the side wall of the cooker body extending from the top of the hem to the bottom of the side wall to 1/3 to 1/2 of the height of the cooker body; and/or the number of the groups of groups,

the thickness of the primer layer is 5-10 mu m.

3. The hemming cooker according to claim 1 or 2, wherein the outer surface of the side wall of the cooker body is further provided with a middle paint layer, which at least partially covers the primer layer.

4. A hemming cooker according to claim 3 wherein the middle paint layer covers the outer surfaces of the side and bottom walls of the cooker body; and/or the number of the groups of groups,

the thickness of the middle paint layer is 8-13 mu m.

5. A hemming cooker according to claim 3 wherein the outer surface of the side wall of the cooker body is further provided with a finish layer, the finish layer covering the middle paint layer.

6. A method of manufacturing a pot for manufacturing a hemming pot according to any of claims 3 to 5, comprising the steps of:

spraying a colored coating on the outer surface of the pot body, wherein the coating is used for at least spraying and coating the joint position of the curled bottom of the pot body and the side wall of the pot body so as to form a primer layer;

and spraying a paint with a preset color on the outer surface of the pot body, wherein the paint covers the primer layer to form a middle paint layer.

7. The method of manufacturing a pan according to claim 6, wherein the paint is sprayed using a spray gun, and the pan body is kept rotating continuously while the paint is sprayed;

the spray guns comprise a plurality of spray guns, at least one spray gun forms a first spray gun group, and at least two spray guns form a second spray gun group; the first spray gun group is used for spraying the paint forming the primer layer, and the paint sprayed by the first spray gun group at least can cover the connection position of the bottom of the pot body curling and the side wall; the second spray gun group is used for spraying the paint forming the middle paint layer, and the paint sprayed by the second spray gun group at least completely covers the primer layer.

8. The method of manufacturing a pan according to claim 7, wherein the first and second spray gun sets are kept fixed in position and orientation, the pan to be sprayed passes through the first and second spray gun sets in sequence, and the pan is kept rotated at a constant speed while passing through the first and second spray gun sets.

9. The method of manufacturing a pan according to claim 8, wherein the outer surface of the pan body includes a first region, a second region and a third region, wherein the first region is a region extending from the top of the rim to the bottom of the side wall to 1/3 to 1/2 of the height of the pan body, the second region is other regions than the first region in the outer surface of the side wall, and the third region is an outer surface region of the bottom wall;

the second spray gun group at least comprises three spray guns, the three spray guns are arranged along the vertical direction, and the three spray guns are respectively used for spraying paint to the first area, the second area and the third area.

10. The method for manufacturing a pan according to claim 6, wherein the pan body is heated or cooled to a temperature of 30-40 ℃ before coating, and dried at a temperature of 100-160 ℃ for 10-20min after coating; and/or sintering at a temperature of 400-410 ℃.