KR102110979B1 - Transverse hairline forming apparatus for stainless coil and stailess coil formed by the same - Google Patents

Abstract

The present invention relates to a horizontal hairline processing apparatus for a stainless coil capable of forming a horizontal hairline on a stainless coil, wherein the horizontal hairline processing apparatus includes a coil support unit in which a stainless coil is rotatably mounted; A coil winding unit which is installed spaced apart from the coil support unit and winds one end of the stainless coil; It is installed between the coil support unit and the coil winding unit, and at least one pair of surface treatment units forming a horizontal hairline perpendicular to the winding direction of the stainless coil on the surface of the stainless coil; including, the stainless coil While the stainless coil passes under the at least one pair of surface treatment units while being unwound from the coil support unit and wound around the coil winding unit, the at least one pair of surface treatment units cross the surface of the stainless coil. Form a line.

Description

Transverse hairline forming apparatus for stainless coil and stailess coil formed by the same}

The present invention relates to a stainless steel sheet having a transverse hairline used in a refrigerator, and more specifically, a transverse hairline processing device for stainless coils capable of forming a transverse hairline on the surface of a stainless steel sheet in coil units, and this processing device It relates to a stainless coil formed by.

Refrigerators are widely used as home appliances for storing frozen or refrigerated food.

In general, a refrigerator has a substantially rectangular parallelepiped body with a front surface open to store food, and a door formed to open and close the front opening of the body.

Nowadays, refrigerators used at home are recognized as interior props, and it is required to differentiate the exterior design of the refrigerator. In particular, when the refrigerator is installed, it is important to differentiate the design of the refrigerator door since the door of the refrigerator is exposed to the outside.

As an example of such a design, products in which a door of a refrigerator is formed of a stainless steel plate to exhibit a unique luster and texture are widely sold. In particular, recently, a stainless steel sheet surface-treated so that hairlines appear on the surface has been used in the manufacture of refrigerator doors.

Stainless steel plates having a vertical hairline are widely used in refrigerator doors. Here, the vertical hairline refers to a surface treatment pattern formed in the height direction of the refrigerator.

1 shows a refrigerator 100 having a door 110 manufactured using a stainless steel plate on which the vertical hairline 111 is formed.

The refrigerator door 110 made of a stainless steel sheet having a vertical hairline 111 as shown in FIG. 1 has reduced luminance and diffuse reflection. Particularly, as shown in FIG. 2, the upper end of the refrigerator door 110 has a problem in that a diffuse reflection phenomenon 113 called wave and smile occurs.

This problem can be solved by forming a horizontal hairline on the surface of the refrigerator door 110. Here, the horizontal hairline refers to a surface treatment pattern formed in the width direction of the refrigerator 100. Therefore, the horizontal hairline is perpendicular to the vertical hairline 111 described above.

An example of a hairline processing apparatus 200 according to the prior art for forming a hairline on a stainless steel sheet is shown in FIG. 3.

Referring to FIG. 3, the stainless coil 201 is rotatably mounted on the coil support unit 210, and one end of the stainless coil 201 is installed at a distance from the coil support unit 210 at a predetermined distance. It is fixed to 220. Therefore, when the coil winding unit 220 is rotated, the band-shaped stainless steel sheet constituting the stainless coil 201 mounted on the coil support unit 220 is unwound and wound again on the coil winding unit 220.

At this time, three polishing belts 230 are installed on the upper side of the stainless coil portion 203 extending between the coil support unit 210 and the coil winding unit 220. The three polishing belts 230 are installed at right angles to the winding direction (arrow A direction) of the stainless coil 201, and are rotatably supported by a pair of rollers 231 and 232. Specifically, the three abrasive belts 230 are provided in a rotational direction (arrow D direction) of the abrasive belt 230 parallel to the winding direction (arrow A direction) of the stainless coil 201.

The width W1 of each polishing belt 230 is formed to correspond to the width W2 of the stainless coil 201. Therefore, when the abrasive belt 230 rotates, a hairline is formed over the entire width of the portion 205 of the stainless coil in contact with the abrasive belt 230. At this time, since the stainless coil 201 continues to move by the coil support unit 210 and the coil winding unit 220, the winding direction of the stainless coil 201 on the surface of the stainless coil 201 (arrow A direction) As a result, a continuous hairline 207 is formed. At this time, the hairline 207 is formed in a direction parallel to the winding direction (arrow A direction) of the stainless coil 201.

Accordingly, when the height H of the refrigerator door 110 is smaller than the width W2 of the stainless coil 201, the stainless steel coil 201 having the hairline 207 is used to form the refrigerator door 110. The refrigerator door 110 may be formed so that a horizontal hairline appears on the surface.

The height H of the door 110 exceeds 1250 mm in a side by side type refrigerator, a one-door type refrigerator, and a built-in refrigerator that are widely used these days.

However, since the maximum width W2 of the commonly used stainless coil 201 is 1250 mm, the stainless coil 201 having a hairline 207 formed using the hairline processing apparatus 200 as shown in FIG. 3 ), The height (H) of the door 110 is 1250mm or more, there is a problem that the refrigerator door 110 having a horizontal hairline cannot be made.

As a method for solving this, a method of manufacturing a steel plate for a refrigerator door (registration number 10-0860645, filing date; 2007.05.04., Title of the invention; a steel plate for a refrigerator and refrigerator door and a manufacturing method thereof) has been proposed.

The manufacturing method of the steel sheet for a refrigerator door is cut to a length corresponding to the length of the refrigerator door, and a horizontal hairline is formed by polishing the surface of the cut stainless steel sheet.

However, if the stainless coil is cut into a stainless steel sheet having a predetermined length to form a horizontal hairline, the stainless steel sheet cut to a predetermined length must be transported as a post process for manufacturing the refrigerator door. Therefore, there is a problem in that it is expensive to supply and is difficult to handle by supplying it as a post process of processing a refrigerator door with a stainless steel sheet having a transverse hairline. This problem can be solved by forming a transverse hairline in a stainless coil state and moving to the coil state.

Therefore, the development of a hairline processing apparatus capable of forming a transverse hairline in a coil state without cutting a stainless coil has been requested.

The present invention was devised in view of the above problems, and relates to a stainless steel coil formed by a horizontal hairline processing apparatus for stainless coils and a stainless steel coil that can form a transverse hairline in a coiled state without cutting the stainless coil.

A horizontal hairline processing apparatus for stainless coils according to an aspect of the present invention includes: a coil support unit in which a stainless coil is rotatably mounted; A coil winding unit which is installed spaced apart from the coil support unit and winds one end of the stainless coil; It is installed between the coil support unit and the coil winding unit, and at least one pair of surface treatment units forming a horizontal hairline perpendicular to the winding direction of the stainless coil on the surface of the stainless coil; including, the stainless coil While the stainless coil passes under the at least one pair of surface treatment units while being unwound from the coil support unit and wound around the coil winding unit, the at least one pair of surface treatment units cross the surface of the stainless coil. Lines can be formed.

In this case, each of the pair of surface treatment units may include: an endless orbital polishing belt; A driving roller installed on one end of the polishing belt and rotating the polishing belt; A driven roller installed on the other end of the polishing belt and supporting the polishing belt to perform an endless track motion by the driving roller; And a working roller that allows a portion of the polishing belt to be in line contact with the surface of the stainless coil, and moves between the driving roller and the driven roller to form the horizontal hairline.

In addition, the working roller may be installed to reciprocate between a first position adjacent to the driving roller and a second position adjacent to the driven roller.

In addition, the working roller can make a portion of the polishing belt line-contact the surface of the stainless coil only when moving from the first position to the second position.

Further, the work rollers of each of the at least one pair of surface treatment units may be installed to move in opposite directions.

In addition, the abrasive particle size of each polishing belt of the at least one pair of surface treatment units may be formed differently.

In addition, the at least one pair of surface treatment units includes four pairs of surface treatment units, and the four pairs of surface treatment units each include a polishing belt, and at least one pair of surface treatment units among the four pairs of surface treatment units The abrasive particle size of the polishing belt of the unit may be formed differently from the abrasive particle size of the polishing belt of other surface treatment units.

In addition, the stainless coil may include a stainless coil with a vertical hairline formed on the surface.

In addition, the stainless coil may include a stainless coil having an embossed surface.

1 is a perspective view showing a refrigerator having a door manufactured using a stainless steel plate having a vertical hairline;
Figure 2 is a partial perspective view showing a wave appearing on the upper portion of the door of the refrigerator of Figure 1;
3 is a view conceptually showing a hairline processing apparatus for a stainless coil according to the prior art;
4 is a perspective view schematically showing a horizontal hairline processing apparatus for a stainless coil according to an embodiment of the present invention;
5 is a partial perspective view showing the surface treatment unit of the horizontal hairline processing apparatus for stainless coil of FIG. 4;
6A, 6B, and 6C are partial cross-sectional views showing the operation of the working roller of the surface treatment unit of the horizontal hairline processing apparatus for stainless coil according to an embodiment of the present invention;
7 is a perspective view showing a stainless coil produced by a horizontal hairline processing apparatus for stainless coils according to an embodiment of the present invention;
8 is a view showing a refrigerator including a door produced using a stainless steel plate produced by a horizontal hairline processing device for stainless coils according to an embodiment of the present invention;
9 is a view partially showing a refrigerator door produced using a stainless steel plate according to another example produced by a horizontal hairline processing apparatus for stainless coils according to an embodiment of the present invention;
10 is a view partially showing a door manufactured using a stainless steel sheet according to another example produced by a horizontal hairline processing device for a stainless coil according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the transverse hairline processing apparatus for stainless coils according to the present invention and stainless coils produced by the processing apparatus will be described in detail.

It should be understood that the embodiments described below are illustratively shown to help understanding of the present invention, and that the present invention can be implemented in various ways different from the embodiments described herein. However, in the following description of the present invention, when it is determined that a detailed description of related known functions or components may unnecessarily obscure the subject matter of the present invention, the detailed description and specific illustration will be omitted. In addition, the accompanying drawings may not be drawn to scale in order to aid the understanding of the invention, but the dimensions of some components may be exaggerated.

4 is a perspective view schematically showing a horizontal hairline processing apparatus for a stainless coil according to an embodiment of the present invention, and FIG. 5 is a partial perspective view showing a surface treatment unit of the horizontal hairline processing apparatus for a stainless coil of FIG. 4. 6A, 6B, and 6C are partial cross-sectional views showing the operation of the work roller of the surface treatment unit of the horizontal hairline processing apparatus for stainless coil according to an embodiment of the present invention.

4 and 5, the horizontal hairline processing apparatus 1 for a stainless coil according to an embodiment of the present invention includes a coil support unit 10, a coil winding unit 20, and four pairs of surface treatment units. (30-1,30-2,30-3,30-4).

The coil support unit 10 is formed such that the stainless coil 11 is rotatably mounted. Here, the stainless coil 11 refers to a strip-shaped stainless steel sheet used for manufacturing a refrigerator door, as shown in FIG. 7, wound in a certain length. Therefore, it is possible to make a plurality of refrigerator doors with one stainless coil 11.

The coil winding unit 20 is installed at a predetermined distance from the coil support unit 10, and is formed to catch and wind one end of the stainless coil 11 mounted on the coil support unit 10. Therefore, the coil winding unit 20 is provided with a rotating shaft (not shown) capable of holding and rotating one end of the stainless coil 11. When the rotating shaft of the coil winding unit 20 rotates, the stainless coil 11 mounted on the coil support unit 10 is released and wound around the coil winding unit 20.

Since the coil support unit 10 and the coil winding unit 20 can be formed the same as or similar to the coil support unit 210 and the coil winding unit 220 of the hairline processing apparatus 200 according to the prior art, the detailed The configuration is omitted.

Four pairs of surface treatment units 30-1, 30-2, 30-3, 30-4 are installed between the coil support unit 10 and the coil winding unit 20, and the surface of the stainless coil 11 In the direction of movement of the stainless coil 11, that is, the horizontal hairline 12 is formed at a right angle to the direction in which the stainless coil 11 is wound (arrow A direction). Specifically, four pairs of surface treatment units 30-1, 30-2, 30-3, while the stainless coil 11 mounted on the coil support unit 10 is unwound and rewinded by the coil winding unit 20, 30-4) Each forms a transverse hairline 12 on the surface of the portion of the stainless coil 11 in contact. When the stainless coil 11 passes through all four pairs of surface treatment units 30-1, 30-2, 30-3, and 30-4, a horizontal hairline 12 is formed on the surface of the stainless coil 11. It is completed.

Since a pair of surface treatment units 30-1, 30-2, 30-3, and 30-4 are composed of two surface treatment units, the horizontal for a stainless coil according to an embodiment of the present invention shown in FIG. The hairline processing apparatus 1 includes a total of eight surface treatment units 31 to 38. Hereinafter, for convenience of explanation, the surface treatment unit closest to the coil support unit 10 among the eight surface treatment units 31 to 38 is referred to as a first surface treatment unit 31, and a direction in which the stainless coil 11 is wound. Subsequently, the second surface treatment unit 32, the third surface treatment unit 33, the fourth surface treatment unit 34, the fifth surface treatment unit 35, the sixth surface treatment unit 36, and the seventh The surface treatment unit 37 and the eighth surface treatment unit 38 are called. Therefore, the surface treatment unit closest to the coil winding unit 20 becomes the eighth surface treatment unit 38.

In addition, the first and second surface treatment units 31 and 32 form the first pair of surface treatment units 30-1, and the third and fourth surface treatment units 33 and 34 process the second pair of surfaces. Forming the unit 30-2, the fifth and sixth surface treatment units 35, 36 form a third pair of surface treatment units 30-3, and the seventh and eighth surface treatment units 37, 38) This forms the fourth pair of surface treatment units 30-4.

Since the eight surface treatment units 31 to 38 are formed in the same structure, the structure of the eighth surface treatment unit 38 will be described in detail below with reference to FIG. 5. The structures of the first to seventh surface treatment units 31 to 37 are the same as those of the eighth surface treatment unit 38.

The eighth surface treatment unit (hereinafter referred to as a surface treatment unit) 38 may include a polishing belt 41, a driving roller 42, a driven roller 43, and a working roller 45.

The abrasive belt 41 is formed in an endless track shape forming a closed curve, and a driving roller 42 and a driven roller 43 are installed inside the abrasive belt 41. The polishing belt 41 is installed perpendicular to the winding direction (arrow A direction) of the stainless coil 11. Therefore, the rotation direction (arrow B direction) of the polishing belt 41 is perpendicular to the winding direction (arrow A direction) of the stainless coil 11.

On the outer surface of the abrasive belt 41, an abrasive capable of forming a horizontal hairline 12 by processing the surface of the stainless coil 11 is provided. The particle size of the abrasive of the abrasive belt 41 can be about 80 to 400 mesh.

The driving roller 42 is installed at one end of the polishing belt 41 and generates a driving force capable of rotating the polishing belt 41. The driving roller 42 may have a built-in motor, or the driving roller 42 is formed to rotate by receiving power from an external motor (not shown).

The driven roller 43 is installed at the other end of the polishing belt 41, and supports the polishing belt 41 to rotate by the driving roller 42. Therefore, when the driving roller 42 rotates, the abrasive belt 41 is supported by the driving roller 42 and the driven roller 43 and performs an infinite track motion.

The work roller 45 is installed between the drive roller 42 and the driven roller 43 inside the polishing belt 41, and a portion of the polishing belt 41 passes through the bottom of the polishing belt 41 (stainless steel coil ( 11) is formed to be in line contact with the surface of the stainless coil 11 to form a transverse hairline (12). Therefore, the polishing belt 41 does not come into contact with the stainless coil 11 as a whole of the surface 41-1 facing the stainless coil 11, but only the portion 41-2 pressed by the working roller 45. It is in contact with the surface of the stainless coil 11.

The work roller 45 is installed to reciprocate between the driving roller 42 and the driven roller 43. Specifically, the position of the working roller 45 adjacent to one side end of the stainless coil 11 adjacent to the driving roller 42 is referred to as a first position P1, and of the stainless coil 11 adjacent to the driven roller 43. If the position of the work roller 45 adjacent to the other end is called the second position P2, the work roller 45 is installed to reciprocate between the first position P1 and the second position P2. That is, the working roller 45 is installed so as to be able to move in a straight line between the first position P1 adjacent to the driving roller 42 and the second position P2 adjacent to the driven roller 43. Therefore, the moving direction of the working roller 45 (arrow C direction) is perpendicular to the winding direction (arrow A direction) of the stainless coil 11.

In order to form a transverse hairline perpendicular to the winding direction (arrow A direction) of the stainless coil 11 on a part of the moving stainless coil 11, the working roller 45 is wound around the stainless coil 11 (arrow). It may be installed to be inclined at a certain angle with respect to an imaginary axis (hereinafter referred to as a vertical axis) parallel to the movement direction (arrow C direction) of the work roller 45 perpendicular to the A direction). The inclination angle of the working roller 45 with respect to the vertical axis may be appropriately determined according to the moving speed of the stainless coil 11, that is, the winding speed of the stainless coil 11, the moving speed of the working roller 45, and the like. To this end, the work roller 45 may be installed to allow the user to adjust the inclination angle with respect to the vertical axis.

When the stainless coil 11 moves as described above, when the work roller 45 moves to form a horizontal hairline, the work roller 45 moves from the first position P1 to the second position P2. When moving from the second position (P2) to the first position (P1), all of the polishing belts 41 can be moved while maintaining contact with the stainless coil 11.

At this time, the pair of two surface treatment units (31-32,33-34,35-36,37-38) each of the work rollers 45 may be configured to perform the surface treatment while moving in the same direction. .

As another example, the pair of two surface treatment units (31-32,33-34,35-36,37-38) each of the work rollers 45 is configured to perform the surface treatment while moving in opposite directions to each other Can be. For example, when the work roller 45 of the eighth surface treatment unit 38 is in the first position P1, the seventh surface treatment unit 37 paired with the eighth surface treatment unit 38 The work roller 45 is configured to be in the second position P2. With this configuration, when the working roller 45 of the eighth surface treatment unit 38 moves from the first position P1 to the second position P2, the surface treatment of the stainless coil 11 is performed. 7 The work roller 45 of the surface treatment unit 37 performs surface treatment while moving from the second position P2 to the first position P1. Therefore, the work roller 45 of the seventh surface treatment unit 37 and the work roller 45 of the eighth surface treatment unit 38 perform surface treatment while moving in opposite directions to form a horizontal hairline.

The abrasive particle sizes of the abrasive belts 41 of the eight surface treatment units 31 to 38 may be formed differently. Alternatively, the abrasive particle sizes of the abrasive belts 41 of the eight surface treatment units 31 to 38 may be formed in the same manner.

In addition, the particle size of the abrasive belts 41 of the two surface treatment units 31-32, 33-34, 35-36, 37-38 in a pair can be formed identically. For example, the polishing belts 41 of the first and second surface treatment units 31 and 32 constituting the first pair 30-1 may be configured to have the same particle size. In addition, the polishing belts 41 of the third and fourth surface treatment units 33 and 34 constituting the second pair 30-2, and the fifth and sixth surface treatment units constituting the third pair 30-3. The polishing belts 41 of 35 and 36, and the polishing belts 41 of the seventh and eighth surface treatment units 37 and 38 constituting the fourth pair 30-4 may each have the same abrasive particle size. have.

Four pairs of surface treatment units (30-1,30-2,30-3,30-4) The abrasive particle size of each polishing belt 41 is four pairs of surface treatment units (30-1,30-2,30) After passing through -3,30-4), it may be determined within a certain range so that the transverse hairline 12 can be completed on the surface of the stainless coil 11.

For example, in the embodiment shown in FIG. 4, the polishing belt 41 of the first pair of surface treatment units 40-1 has an abrasive particle size of 80 to 120 mesh, and the second pair of surface treatment The abrasive belt 41 of the unit 30-2 is 80-120 mesh abrasive particle size, the third pair of abrasive belts 41 of the surface treatment unit 30-3 is 80-150 mesh abrasive particle size, the fourth pair The surface treatment unit 30-4 may have an abrasive particle size of 120 to 400 mesh.

At this time, the particle size of the abrasive of the abrasive belt 41 of the four pairs of surface treatment units 30-1, 30-2, 30-3, 30-4 is sequentially in the winding direction (arrow A direction) of the stainless coil 11. It can be configured to have a high particle size. For example, the abrasive particle size of the polishing belt 41 of the first pair of surface treatment units 30-1 is 90 mesh, and the abrasive particle size of the polishing belt 41 of the second pair of surface treatment units 30-2 is 100. The mesh, the abrasive particle size of the polishing belt 41 of the third pair of surface treatment units 30-3 is 120 mesh, and the abrasive particle size of the polishing belt 41 of the fourth pair of surface treatment units 30-4 to 140 mesh. can do.

In addition, the particle size of the abrasive of the polishing belt 41 of at least one pair of the surface treatment units of the four pairs of surface treatment units 30-1, 30-2, 30-3, 30-4 is that of the other pair of surface treatment units. The abrasive belt 41 may be formed differently from the abrasive particle size. For example, the abrasive particle size of the abrasive belt 41 of the first pair, the second pair, and the third pair of surface treatment units 30-1, 30-2, 30-3 are the same, and the fourth pair of surface treatment units Only the abrasive belt 41 of (30-4) can be configured to have an abrasive particle size higher than that of the abrasive belt 41 of the three pairs of surface treatment units 30-1, 30-2, 30-3. .

The particle size of the abrasive of the abrasive belt 41 of the four pairs of surface treatment units 30-1, 30-2, 30-3, 30-4 is the type of the stainless coil 11, the state of the desired horizontal hairline, It may be appropriately determined according to the winding speed of the stainless coil 11, the moving speed of the work roller 45, the rotational speed of the polishing belt 41, and the like.

The control unit 50 controls the coil winding unit 20, the driving rollers 42 and the working rollers 45 of the eight surface treatment units 31-38. Therefore, the control unit 50, the coil winding unit 20, the speed of winding the stainless coil 11, the rotational speed of the drive roller 42 of the eight surface treatment units 31 to 38, the movement of the work roller 45 It can be formed to control the speed and direction of movement.

Although not shown in FIG. 4, the support member supporting a portion 13 of the stainless coil 11 located between the coil support unit 10 and the coil winding unit 20 has a coil support unit 10 and a coil winding unit. Between the 20 can be installed under the stainless coil (11). The support member forms a transverse hairline 12 on the surface of the stainless coil 11 by a work roller 45 of four pairs of surface treatment units 30-1, 30-2, 30-3, 30-4. It can be formed to support the force applied to the stainless coil 11 when preventing the stainless coil 11 from sagging.

Hereinafter, the operation of the horizontal hairline processing apparatus 1 for stainless coils according to an embodiment of the present invention having the above-described structure will be described in detail with reference to FIGS. 4 to 6C.

First, the stainless coil 11 to be processed is hung on the coil support unit 10, and one end of the stainless coil 11 mounted on the coil support unit 10 is fixed to the coil winding unit 20. When the coil winding unit 20 is operated in this state, the stainless coil 11 mounted on the coil support unit 10 is released and wound on the coil winding unit 20.

At this time, the stainless steel coil 11 'wound on the coil winding unit 20 passes eight pairs of polishing belts while passing under the four pairs of surface treatment units 30-1, 30-2, 30-3, 30-4. A horizontal hairline 12 is formed on the surface of the stainless coil 11 by the 41 and the working roller 45.

Specifically, the working roller 45 presses the polishing belt 41 at the first position P1 shown in FIG. 6A so that a portion 41-2 of the polishing belt 41 makes line contact with the stainless coil 11. After doing so, when the working roller 45 moves to the second position P2 shown in Fig. 6C in a state where the abrasive belt 41 maintains line contact with the stainless coil 11, the stainless coil 11 On the surface of the transverse hairline 12 is formed. 6B shows the case where the work roller 45 is in a moving state, and the work roller 45 is located approximately halfway between the first position P1 and the second position P2.

When the work roller 45 forms the horizontal hairline 12 while moving from the first position P1 to the second position P2, the polishing belt 41 also rotates in one direction by the drive roller 42. Therefore, the polishing belt 41 located between the working roller 45 and the stainless coil 11 also moves. Therefore, while the work roller 45 is moved from the first position P1 to the second position P2, the stainless steel coil is continuously changed while the portion 41-2 of the polishing belt 41 in contact with the stainless coil 11 changes. The horizontal hairline 12 is formed on the surface of (11). Accordingly, since the surface treatment of the stainless coil 11 is performed with the part 41-2 of the continuously changing polishing belt, the transverse hairline 12 can be efficiently formed.

When the work roller 45 arrives at the second position (P2), the work roller (45) moves back to the first position (P1) while the polishing belt (41) makes line contact with the stainless coil (11). The hairline 12 is formed.

4, the horizontal hairline processing apparatus 1 for a stainless coil according to an embodiment of the present invention has four pairs of surface treatment units 30-1, 30-2, 30-3, 30-4 ) Is sequentially provided with abrasive belts 41 with high abrasive particle size, so the stainless coil 11 moves in the winding direction (arrow A direction) and passes through the fourth pair of surface treatment units 30-4 to achieve the desired width. The hairline 12 is completed.

Accordingly, when the coil winding unit 20 winds the stainless coil 11 in the horizontal hairline processing apparatus 1 for stainless coil according to an embodiment of the present invention, eight surfaces are treated on the surface of the stainless coil 11 The transverse hairline 12 is continuously formed by the units 31-38.

In the horizontal hairline processing apparatus 1 for a stainless coil according to an embodiment of the present invention, when it is completed to rewind the stainless coil 11 mounted on the coil support unit 10 with the coil winding unit 20, stainless The processing of the transverse hairline 12 is completed on the surface of the strip-shaped stainless steel sheet forming the coil 11. Thus, a stainless coil 11 'having a transverse hairline 12 as shown in Fig. 7 is obtained.

In the above, the case where eight surface treatment units 31 to 38 form a horizontal hairline 12 on the surface of the stainless coil 11 while the stainless coil 11 is continuously wound has been described, but other embodiments As, it is also possible to form the transverse hairline 12 with the stainless coil 11 stopped.

In the case of this embodiment, the configuration is the same as that of the horizontal hairline processing device 1 for stainless coil shown in FIG. 4, but the control method is different. In addition, in the case of this embodiment, since the stainless steel coil 11 forms a horizontal hairline 12 in a stopped state, the work roller 45 is installed in parallel with the winding direction (arrow A direction) of the stainless coil 11. do.

The control unit 50 controls the coil winding unit 20 to intermittently operate to wind and stop the stainless coil 11 at a predetermined distance.

For example, in a state where the stainless coil 11 is stopped, the control unit 50 rotates the drive rollers 42 of each of the eight surface treatment units 31 to 38 so that the abrasive belt 41 moves infinitely. The work roller 45 is controlled to move from the first position P1 to the second position P2. Then, by the working roller 45, the polishing belt 41 makes line contact with the surface of the stainless coil 11 to form a horizontal hairline 12 on the stainless coil 11.

When the work roller 45 arrives at the second position P2, the control unit 50 stops the rotation of the driving roller 42, and then returns the work roller 45 to the first position P1. At this time, the working roller 45 rises a certain distance so that the polishing belt 41 is not pressed against the stainless coil 11. Therefore, when the work roller 45 returns from the second position P2 to the first position P1, the horizontal hairline 12 is not formed.

When the work roller 45 moves from the second position P2 to the first position P1, the control unit 50 controls the coil winding unit 20 to wind the stainless coil 11 for a certain length. At this time, the winding length is the length of the horizontal hairline 12 formed by the eighth surface treatment unit 38. This may be approximately the same as the width W3 of the polishing belt 41.

After controlling the coil winding unit 20 to wind the stainless coil 11 for a predetermined length, the control unit 50 stops the coil winding unit 20 to prevent the stainless coil 11 from moving. Thereafter, the driving roller 42 and the working roller 43 are controlled again to form a horizontal hairline 12 on the surface of the stainless coil 11.

The control unit 50 may repeatedly form the horizontal hairline 12 on the surface of the stainless coil 11 by repeating the above-described surface treatment operation and the winding operation of the stainless coil 11.

In the above, four surface treatment units (30-1,30-2,30-3,30-4), that is, eight surface treatment units (31-38) are used to cross the surface of the stainless coil (11). The case of processing the hairline 12 has been described. However, this is only an example, and the transverse hairline processing apparatus 1 for stainless coils according to the present invention comprises at least one pair of surface treatment units, that is, at least two surface treatment units or five or more pairs, that is, ten or more surface treatment units. It can also be configured to form a transverse hairline.

According to the transverse hairline processing apparatus 1 for a stainless coil according to the embodiment of the present invention described above, since the transverse hairline 12 can be formed on a strip-shaped stainless steel sheet without cutting the stainless coil 11, , It is possible to obtain a stainless coil 11 'having a horizontal hairline 12 formed on its surface. Therefore, since the stainless steel plate serving as the original plate of the refrigerator door can be moved in coil units for a post process for manufacturing a refrigerator door, for example, an additional surface treatment process, a molding process, etc., the stainless steel sheet has a cut horizontal hairline. It has the advantage that it is more convenient to move, easier to handle, and can reduce logistics costs than the conventional technique of moving.

Door 310 manufactured using the stainless steel coil 11 'shown in FIG. 7 in which the horizontal hairline 12 is formed by the horizontal hairline processing device 1 for stainless coils according to the embodiment of the present invention described above. A side by side type refrigerator 300 is provided in FIG. 8.

Referring to FIG. 8, a horizontal hairline 12 is formed on a surface of the door 310 of the refrigerator 300 in the width direction of the refrigerator 300. As described above, when the horizontal hairline 12 is formed on the surface of the refrigerator door 310, unlike the refrigerator door 110 having the vertical hairline 111 shown in FIG. 1, the upper end of the door 310 is wave, There is no diffuse reflection phenomenon called Smile.

In the above description, the horizontal hairline on the surface of the stainless coil 11 having no pattern on the surface of the stainless coil 11 using the horizontal hairline processing device 1 for stainless coil according to an embodiment of the present invention ( The case of forming 12) was explained.

However, the horizontal hairline processing apparatus 1 for stainless coils according to the embodiment of the present invention described above may form a horizontal hairline on the surface of a stainless coil with a pattern on the surface.

For example, a horizontal hairline processing apparatus for a stainless coil according to an embodiment of the present invention in a stainless coil 201 in which a vertical hairline 207 is formed by the hairline processing apparatus 200 according to the prior art of FIG. 3 (1) can be used to form a transverse hairline. Then, a pattern in which the vertical hairline and the horizontal hairline cross each other can be obtained.

An example of such a refrigerator door 310 'having a pattern in which a horizontal hairline and a vertical hairline are crossed is illustrated in FIG. 9.

As another example, a horizontal hairline may be formed on the surface of a stainless coil on which an embossing pattern is formed by embossing on the surface of a stainless coil using the horizontal hairline processing apparatus 1 for stainless coils according to an embodiment of the present invention. You can. Then, a pattern in which an embossing pattern and a horizontal hairline are combined can be obtained.

An example of such a refrigerator door 310 "having a pattern in which an embossing pattern and a horizontal hairline are combined is illustrated in Fig. 10. However, the embossing pattern of Fig. 10 is only an example, and various embossing patterns may be applied.

In the above, the present invention has been described by way of example. The terms used herein are for illustrative purposes and should not be understood in a limiting sense. Various modifications and variations of the present invention are possible according to the above. Therefore, unless otherwise stated, the present invention may be freely implemented within the scope of the claims.

One; Horizontal hairline processing device for stainless coils
10; Coil support units 11,11 '; Stainless coil
12; Transverse hairline 20; Coil winding unit
30-1,30-2,30-3,30-4; A pair of surface treatment units
31 to 38; First to eighth surface treatment units
41; Abrasive belt 42; Driving roller
43; Driven roller 45; Work roller
50; Control unit 100,300; Refrigerator
110,310; Refrigerator door 200; Hairline processing equipment
201; Stainless coil 210; Coil support unit
220; Coil winding unit 230; Polishing belt

Claims (10)

A coil support unit to which the stainless coil is rotatably mounted;
A coil winding unit which is installed spaced apart from the coil support unit and winds one end of the stainless coil;
It is installed between the coil support unit and the coil winding unit, and at least one pair of surface treatment units forming a horizontal hairline at a right angle to the winding direction of the stainless coil on the surface of the stainless coil.
While the stainless coil passes under the at least one pair of surface treatment units while the stainless coil is unwound from the coil support unit and wound around the coil winding unit, the at least one pair of surface treatment units is the surface of the stainless coil. Horizontal hairline processing device for a stainless coil, characterized in that to form a horizontal hairline. According to claim 1,
Each of the pair of surface treatment units,
A caterpillar-shaped abrasive belt;
A driving roller installed on one end of the polishing belt and rotating the polishing belt;
A driven roller installed on the other end of the polishing belt and supporting the polishing belt to perform an endless track motion by the driving roller; And
And a part of the abrasive belt in line contact with the surface of the stainless coil, and a working roller moving between the driving roller and the driven roller to form the transverse hairline. Line processing equipment. According to claim 2,
The working roller is a horizontal hairline processing apparatus for a stainless coil, characterized in that installed to reciprocate between the first position adjacent to the driving roller and the second position adjacent to the driven roller. The method of claim 3,
The working roller is a horizontal hairline processing apparatus for a stainless coil, characterized in that a portion of the polishing belt is brought into line contact with the surface of the stainless coil only when moving from the first position to the second position. The method of claim 3,
A horizontal hairline processing apparatus for stainless coils, characterized in that the work rollers of each of the at least one pair of surface treatment units are installed to move in opposite directions. According to claim 2,
Horizontal hairline processing apparatus for a stainless coil, characterized in that the abrasive particle size of each polishing belt of the at least one pair of surface treatment units is different. According to claim 1,
The at least one pair of surface treatment units,
A first pair of surface treatment units comprising first and second surface treatment units,
A second pair of surface treatment units comprising third and fourth surface treatment units,
A third pair of surface treatment units comprising fifth and sixth surface treatment units, and
And a fourth pair of surface treatment units including the seventh and eighth surface treatment units,
The first pair, the second pair, the third pair, and the fourth pair of surface treatment units each include a polishing belt,
The first pair, the second pair, the third pair, and the fourth pair of the surface treatment unit of at least one pair of the surface treatment unit of the polishing belt abrasive particle size of the polishing belt of the other surface treatment unit is characterized in that the stainless steel coil Horizontal transverse hairline processing equipment. According to claim 1,
The stainless steel coil is a horizontal hairline processing device for stainless coils, characterized in that it comprises a stainless steel coil is formed on the surface. According to claim 1,
The stainless steel coil is a horizontal hairline processing device for stainless coils, characterized in that it comprises a stainless coil embossed surface. A stainless coil, characterized in that the surface is processed by the transverse hairline processing device for any one of claims 1 to 9.

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