Manufacturing apparatus of edge protector for cold rolled coil

Abstract

The present invention provides a corner protector processing device for cold-rolled coils comprising: an uncoiler that unwinds a first roll on which a sheet is wound at a set speed; a processing unit that pressurizes and cuts the sheet supplied from the uncoiler; and a winder that winds corner protectors cut into a plurality of regions in the processing unit onto a plurality of second rolls at different locations.

Description

Technology Field

[0001] The present invention relates to a processing device for corner protectors for cold-rolled coils capable of continuously cutting and processing a plurality of corner protectors capable of protecting the corners of cold-rolled coils. Background Technology

[0002] Generally, hot-rolled coil steel sheets (HR) are plates made by heating a continuous casting slab to a high temperature of about 1,200°C and then rolling it (rolling refers to the process of reducing thickness and making it uniform by placing it inside two rotating cylinders). Hot-rolled steel sheets can be cut from coils and used as industrial materials. Additionally, cold-rolled coil steel sheets can be produced and used by rolling them at room temperature.

[0003] In addition, cold-rolled coil (CR) refers to steel sheets processed into thinner sheets by removing the surface oxide layer from hot-rolled steel. Cold-rolled steel is widely used in automobiles, home appliances, and other applications because its high workability makes it easy to mold into desired shapes.

[0004] These steel coil products undergo multiple transportation and logistics processes from production at the steel mill to delivery to the user, and during this process, the steel coil products may be damaged by external impact or scratches.

[0005] Therefore, although side or corner protection plates are applied to prevent damage to the sides and corners of steel coil products, problems such as excessive consumption of materials and time for packaging and reduced packaging speed due to increased work processes are continuously being raised. Prior art literature

[0006] Korean Patent Publication No. 10-0524600 (Registered on Oct. 21, 2005) The problem to be solved

[0007] The present invention aims to solve such problems, and more specifically, to provide a processing device for corner protectors for cold-rolled coils capable of continuously cutting and processing multiple corner protectors capable of protecting the corners of cold-rolled coils at a low cost and with a short takt time.

[0008] The problems of the present invention are not limited to those mentioned above, and other unmentioned objectives will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0009] To achieve the above objective, the present invention provides a corner protector processing device for cold-rolled coils comprising: an uncoiler that unwinds a first roll on which a sheet is wound at a set speed; a processing unit that pressurizes and cuts the sheet supplied from the uncoiler; and a winder that winds corner protectors cut into a plurality of regions in the processing unit onto a plurality of second rolls at different locations.

[0010] The processing unit may include an entry guide that aligns a sheet supplied from the uncoiler to a set position, a feeder that transports the sheet passing through the entry guide at a set speed, a cutting unit that cuts the sheet supplied from the feeder, and a trimmer that separates a single sheet cut by the cutting unit into a plurality of corner protectors.

[0011] The above-described foundation unit may include a third roller positioned on one side centered on the sheet, and a fourth roller positioned on the other side centered on the sheet so as to face the third roller.

[0012] Any one of the above-mentioned third or fourth rollers may include one or more first roll knives that press and cut the sheet, and a second roll knife that cuts the sheet cut through the first roll knife into a plurality of corner protectors having a mutually symmetrical shape.

[0013] The first roller knife can be formed with a tooth pattern set along the circumferential direction of the third roller or the fourth roller.

[0014] The second roll knife can be positioned to have equal spacing between adjacent peaks and valleys of the sawtooth pattern.

[0015] Either of the first roller or the second roller may include a pressure rib protruding along the circumferential direction to connect the valleys and valleys or the peaks and peaks of the sawtooth pattern.

[0016] Specific details of other embodiments are included in the detailed description and drawings. Effects of the invention

[0017] According to the edge protector processing device for cold-rolled coils according to an embodiment of the present invention,

[0018] First, the process can be carried out automatically while supplying the sheet until the corner protector is wound onto the second roll, and

[0019] Second, the corner protectors can be cut efficiently without any wasted sheet material, and

[0020] Third, it has the effect of reducing production costs while significantly shortening manufacturing time.

[0021] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims. Brief explanation of the drawing

[0022] The summary described above, as well as the detailed description of the preferred embodiments of the present application described below, will be better understood when read in conjunction with the accompanying drawings. Preferred embodiments are illustrated in the drawings for the purpose of illustrating the invention. However, it should be understood that the present application is not limited to the exact arrangements and means illustrated. FIG. 1 is a reference diagram illustrating a corner protector processing device for a cold-rolled coil according to an embodiment of the present invention. Figure 2 is a reference diagram illustrating the uncoiler of the corner guard processing device for cold-rolled coils shown in Figure 1. Figure 3 is a front view illustrating the cutting unit of the processing part shown in Figure 1. Figure 4 is a reference diagram illustrating the foundation unit shown in Figure 3. Figure 5 is a reference diagram illustrating the trimmer of the processing part shown in Figure 1. Figure 6 is a reference diagram illustrating the second roll of the winder shown in Figure 1. Specific details for implementing the invention

[0023] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The advantages and features of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components.

[0024] The present invention is capable of various modifications and may have various embodiments, and specific embodiments are illustrated and described in the drawings.

[0025] However, this is not intended to limit the invention to specific embodiments, and it should be understood that it includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0026] Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms.

[0027] The above terms are used solely for the purpose of distinguishing one component from another.

[0028] For example, without departing from the scope of the present invention, the second component may be named the first component, and similarly, the first component may be named the second component.

[0029] The term "and / or" includes a combination of multiple related listed items or any of the multiple related listed items.

[0030] When it is stated that one component is "connected" or "joined" to another component, it should be understood that while it may be directly connected or joined to that other component, there may also be other components in between.

[0031] On the other hand, when it is stated that one component is "directly connected" or "directly coupled" to another component, it should be understood that there are no other components in between.

[0032] The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention.

[0033] Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0034] In this application, terms such as "comprising" or "having" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0035] Hereinafter, embodiments will be described in detail with reference to the attached drawings, provided that identical or corresponding components are given the same reference number regardless of the drawing symbols, and redundant descriptions thereof will be omitted.

[0036] FIG. 1 is a reference diagram illustrating a corner protector processing device for a cold-rolled coil according to an embodiment of the present invention.

[0037] Referring to FIG. 1, a corner protector processing device (100) for a cold-rolled coil according to an embodiment of the present invention may include an uncoiler (110), a processing part (120), and a winder (130).

[0038] First, the uncoiler (110) can provide the function of unwinding the first roll (111) on which the sheet (S) is wound at a set speed and supplying it to the processing unit (120). Here, the sheet (S) may include a flat sheet made of corrugated plastic, PE, and PP.

[0039] Additionally, the processing unit (120) may include an entry guide (121), a feeder (122), a cutting unit (123), and a trimmer (124).

[0040] The entry guide (121) can align the sheet (S) supplied from the uncoiler (110) to a set position. For example, the entry guide (121) can set the supply position of the sheet (S) between the uncoiler (110) and the feeder (122) and allow the sheet (S) to be supplied to the set position.

[0041] Although not shown in the drawing, the entry guide (121) can adjust the feed height of the sheet (S) on one side of the processing section (120). Additionally, the entry guide (121) can be positioned to be closer to or further away from the feeder (122).

[0042] Additionally, the feeder (122) can transport the sheet (S) supplied from the entry guide (121) at a set speed. The sheet (S) can be supplied toward the cutting unit (123) at a constant set speed.

[0043] For example, the feeder (122) can control the supply speed of the sheet (S) supplied toward the cutting unit (123) by supplying the sheet (S) between a pair of rollers (122a) arranged to face each other in the vertical direction.

[0044] Additionally, the cutting unit (123) can cut the sheet (S) supplied from the feeder (122) and process the sheet (S) into a corner protector (G) of a set shape.

[0045] The cutting unit (123) includes a first roller (R1) and a second roller (R2), and a sheet (S) can be cut into a set shape as it passes between the first roller (R1) and the second roller (R2).

[0046] And, the trimmer (124) can separate a sheet (S) cut in the cutting unit (123) into a plurality of corner protectors (G).

[0047] Additionally, the winder (130) can serve to wind each corner protector (G), separated from the trimmer (124), onto a plurality of second rolls (131) at different locations.

[0048] In this embodiment, the winder (130) is provided with four second rolls (131), and corner protectors (G) of the same shape can be wound on each second roll (131).

[0049] FIG. 2 is a reference diagram illustrating the uncoiler (110) of the corner protector processing device (100) for cold-rolled coils shown in FIG. 1.

[0050] Referring to FIG. 2, the uncoiler (110) can unwind the sheet (S) wound on the first roll (111) according to the rotation of the first roll (111) and supply it to the processing unit (120).

[0051] The uncoiler (110) may include a control panel (112). The control panel (112) may control the rotational speed of the first roll (111). Alternatively, the control panel (112) may control not only the rotational speed of the first roll (111) but also the power on / off, emergency stop, temporary stop, etc. of the first roll (111).

[0052] FIG. 3 is a front view illustrating the cutting unit (123) of the processing unit (120) shown in FIG. 1, and FIG. 4 is a reference view illustrating the cutting unit (123) shown in FIG. 3.

[0053] Referring to FIGS. 3 and 4, the cutting unit (123) of the processing unit (120) includes a first roller (R1) and a second roller (R2), and either of the first roller (R1) and the second roller (R2) may include a first roll knife (123a) and a second roll knife (123b).

[0054] In this embodiment, the first roll knife (123a) and the second roll knife (123b) are provided on the first roller (R1) positioned relatively higher, as an example, and although not shown in the drawing, they may also be provided on the second roller (R2).

[0055] The first roll knife (123a) can be formed with a set tooth pattern. The tooth pattern has a single connected pattern along the outer surface of the first roll (111), and when the first roll (111) rotates one full turn, a tooth pattern having the same shape and spacing can be continuously formed on the sheet (S). The tooth pattern formed on the sheet (S) can cut the sheets (S) on both sides with the tooth pattern as the center. At this time, a pair of the first roll knives (123a) can be arranged side by side on a single first roll (111). Thus, the sheet (S) can be cut into three regions by the first roll knife (123a).

[0056] Additionally, the second roll knife (123b) is positioned adjacent to the center of the first roller (R1) and both ends, respectively, to cut the sheet (S) into a total of three areas.

[0057] Accordingly, the sheet (S) can be cut into a total of four areas by the first roll knife (123a) and the second roll knife (123b). That is, one sheet (S) can be processed into four corner protectors (G) simultaneously.

[0058] At this time, the second roll knife (123b) may be positioned to have equal spacing between adjacent peaks or valleys of the sawtooth pattern. To be more specific, one corner guard (G) may include a first surface (11) located on the outer circumference, which is the curved surface of the cold-rolled coil, and a second surface (12) located on the side, which is the flat surface of the cold-rolled coil, wherein the second surface (11) protrudes periodically in a sawtooth pattern on the first surface (11). Here, when positioned to have equal spacing between the peaks or valleys of the sawtooth pattern, the spacing of the second surface cut by the second roll knife (123b) may be cut in the same shape.

[0059] Additionally, the first roller (R1) may include a pressure rib (123c) protruding along the circumferential direction to connect one groove of the sawtooth pattern with another groove adjacent to one groove, or to connect one peak with another peak adjacent to one peak. For example, the pressure rib (123c) may be formed to be relatively lower in height compared to the first roll knife (123a) or the second roll knife (123b). The pressure rib (123c) may form a folding line (also known as a creasing line) to facilitate folding between the first surface (11) and the second surface (12).

[0060] Although not shown in the drawing, at least one of the first roller (R1) and the second roller (R2) can be positioned to allow height adjustment.

[0061] FIG. 5 is a reference diagram illustrating the trimmer of the processing part (120) shown in FIG. 1.

[0062] Referring to FIG. 5, the trimmer (124) can provide the function of separating a sheet (S) cut by the cutting unit (123) into a plurality of corner protectors (G).

[0063] For example, as shown in FIG. 5, the cut corner protector (G) can be divided into a first protector (G1) to a fourth protector (G4) along one direction, and the first protector (G1) and the fourth protector (G4) can be separated into a lower layer (F1) based on the cut through the first roll knife (123a), and the second protector (G2) and the third protector (G3) can be separated into an upper layer (F2).

[0064] A trimmer (124) may be optionally provided to facilitate the separation and discharge of the first to fourth guards (G1) to each winder (130), and in some cases, the trimmer (124) may be omitted.

[0065] FIG. 6 is a reference diagram illustrating the second roll of the winder (130) shown in FIG. 1.

[0066] Referring to FIG. 6, the winder (130) may be composed of a plurality of second rolls (131).

[0067] As described above, since the corner protector (G) is provided in four areas, the second roll (131) can also be composed of four. Of course, the second roll (131) may be applied in a different number corresponding to the number of corner protectors (G) provided in the processing section (120).

[0068] Although not shown in the drawing, a plurality of second rolls (131) may be equipped with a tensioner (not shown) so that appropriate tension can be maintained during the process of winding the corner protector (G).

[0069] Accordingly, the edge guard processing device for cold-rolled coils according to the embodiment of the present invention allows the process to proceed automatically while supplying the sheet until the edge guard is wound onto the second roll, and the edge guard can be efficiently cut without any wasted sheet, thereby reducing production costs and significantly shortening manufacturing time.

[0070] Although specific embodiments have been illustrated and described above to exemplify the technical concept of the present invention, the present invention is not limited to the configuration and operation identical to the specific embodiments described above, and various modifications may be implemented within the scope of the present invention. Accordingly, such modifications should also be considered to fall within the scope of the present invention, and the scope of the present invention should be determined by the claims set forth below. Explanation of the symbols

[0071] 100: Corner protector processing device for cold-rolled coils 110: Uncoiler 120: Processing part 121: Entry Guide 122: Feeder 123: Foundation Unit 124: Trimmer 130: Winder

Claims

Claim 1 An uncoiler that unwinds a first roll on which a sheet is wound at a set speed; a processing unit that presses and cuts the sheet supplied from the uncoiler; and a winder that winds corner protectors cut into multiple areas in the processing unit onto multiple second rolls at different locations. The processing unit includes an entry guide that aligns a sheet supplied from the uncoiler to a set position, a feeder that conveys the sheet passing through the entry guide at a set speed, a cutting unit that cuts the sheet supplied from the feeder, and a trimmer that separates a single sheet cut by the cutting unit into a plurality of corner protectors. The cutting unit includes a first roller positioned on one side centered on the sheet and a second roller positioned on the other side centered on the sheet to face the first roller. Either the first roller or the second roller includes one or more first roll knives that press and cut the sheet, and a second roll knife that cuts the sheet cut through the first roll knife into a plurality of corner protectors having a mutually symmetrical shape. The first roll knife is formed with a set sawtooth pattern along the circumferential direction of the first roller or the second roller. At least one of the first roller or the second roller protrudes along the circumferential direction to connect the valleys and valleys or the peaks and peaks of the sawtooth pattern, and is positioned between the outer surface and the side of the cold-rolled coil A processing device for a corner protector for a cold-rolled coil, including a pressure rib forming a folding line. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 delete Claim 6 In claim 1, the second roll knife is a corner protector processing device for cold-rolled coils arranged to have equal spacing between adjacent peaks and valleys of the sawtooth pattern. Claim 7 delete

Images