Roll Press Apparatus and Metal Sheet Supplying Method therefor

Abstract

The present invention provides a method for supplying a metal sheet to a roll press facility that continuously forms an uneven shape on a metal sheet provided along a driving direction, and a roll press device applying the same. The roll press device comprises a press roll including a lower roll and an upper roll having an uneven shape formed complementary to the circumferential surface, a driving device that transmits driving force to the press roll, a guide part disposed in front of the press roll to guide the supply of a metal sheet supplied to the press roll, and a lifting guide part that guides the lifting of the guide part. As the guide part is lifted by the lifting guide part, the supply angle of the metal sheet supplied to the press roll can be determined. The supply angle of the metal sheet can be determined within a range such that the metal sheet supplied to the press roll comes into contact with the base support surface before coming into contact with the mold protrusion.

Description

Technology Field

[0001] The present invention relates to a method for supplying a metal plate to a roll press facility that continuously forms an uneven shape on a metal plate provided continuously along a driving direction, and a roll press device applying the same. Background Technology

[0002] Metal materials have the advantage of high durability and high strength relative to their mass. Metal sheets are processed from ductile metal into thin, wide sheets and are used in various fields. For example, facilities can be cited as a demand source that requires the advantages of the aforementioned metal materials.

[0003] For example, metal sheets can be processed into pipe shapes to be used as railings or handrails, or processed into sheets of a specific width to be used as non-slip surfaces installed at the corners of stairs. Additionally, they are used as exterior building materials to take advantage of their unique surface aesthetics.

[0004] In such facilities, methods are utilized to increase surface roughness by knurling, sandblasting, particle attachment, or bonding on the surface of the metal plate to increase frictional force on the metal plate having a relatively slippery surface and to impart a unique surface aesthetic.

[0005] However, knurling is insufficient to provide sufficient surface roughness, and sandblasting is not an environmentally friendly process and has high processing costs. In addition, particle adhesion or bonding processes face the problem of particle detachment due to continuous use.

[0006] Accordingly, metal plates with surface irregularities are gaining attention. Korean Patent No. 2183262 discloses a non-slip member having irregularities formed on a metal plate. The metal plate used in the disclosed non-slip member is provided after being embossed. The embossing process involves transporting the metal plate between a pair of press rolls, each having an irregularity formed on its surface that is complementary to the surface, so that an irregular shape is formed on the metal plate.

[0007] This metal sheet processing method has the advantage of continuous and simple processing, as well as relatively low processing costs. However, unlike conventional roll presses, this equipment makes precise processing difficult using only the spacing between press rolls or axis alignment.

[0008] In addition, unlike general roll rolling, which applies pressure to the entire sheet metal to spread the material in the conveying direction and reduce its thickness, the above-described metal sheet processing method must plastically process only a specific area of ​​the sheet metal to form an uneven shape without spreading the material in the conveying direction. Therefore, when processing the metal sheet metal as described above, the general rolling roll and the method of supplying the metal sheet metal must be different. The problem to be solved

[0009] The present invention has been devised to solve the aforementioned problems and aims to provide a method for supplying a metal plate to a roll press to form an uneven shape on a predetermined metal plate without stretching the plate in the conveying direction, and to provide a roll press device applying the same.

[0010] The technical problems of the present invention are not limited to the purposes mentioned above, and other unmentioned purposes and advantages of the present invention may be understood from the following description and will be more clearly understood by the embodiments of the present invention. Furthermore, it will be readily apparent that the purposes and advantages of the present invention can be realized by the means and combinations thereof set forth in the claims. means of solving the problem

[0011] The present invention for solving the above-mentioned problem can be applied to a roll press facility comprising a pair of press rolls having a complementary uneven shape formed on their circumferential surfaces.

[0012] The above roll press equipment may provide a driving device that transmits driving force to the above press roll.

[0013] One of the pair of press rolls may be the driving roll and the other the driven roll.

[0014] A pair of press rolls can be horizontal rolls arranged horizontally.

[0015] A pair of press rolls may be an upper roll and a lower roll arranged vertically.

[0016] The roll press equipment described above includes a guide section disposed in front of the press roll to guide the supply of a metal plate supplied to the press roll, a lifting guide section to guide the lifting of the guide section, and a rotation guide section to guide the rotation of the guide section about a rotation center axis extending in the width direction.

[0017] The feeding angle of the metal plate supplied to the press roll is regulated by the guide member being raised by the lifting guide member.

[0018] The above-mentioned rotation guide guides the guide to rotate in correspondence with the supply angle of the metal plate.

[0019] The lifting guide may include a front support having a rail that is positioned on both front sides of the press roll and extends in the vertical direction, and a lifting block that moves up and down along the rail.

[0020] The above guide section may include a supply roll rotatably installed on the lifting block with respect to a rotation axis parallel to the rotation axis of the press roll.

[0021] The above guide section may include side rolls rotatably installed on both sides in the width direction of the metal plate, centered on a rotation axis parallel to the normal of the plane defined by the metal plate supplied to the press roll.

[0022] The above side roll can be installed to be rotatable with respect to the above lifting block with respect to the above pivot center axis.

[0023] In one embodiment, the supply roll and the side roll may be installed to be able to move up and down independently of each other.

[0024] The above lifting block may include a first lifting block and a second lifting block that each lift independently with respect to the front support.

[0025] The above front support may include a first rail that guides the lifting movement of the first lifting block and a second rail that guides the lifting movement of the second lifting block.

[0026] The above supply roll is connected to the first lifting block and can move up and down together with the first lifting block.

[0027] The above side roll is connected to the second lifting block and can move up and down together with the second lifting block.

[0028] The first lifting block can be provided as a pair on the left and right with the metal plate in between.

[0029] Both ends of the above supply roll can be connected to the pair of first lifting blocks, respectively.

[0030] The above supply roll may include a first roll and a second roll arranged parallel to each other.

[0031] The above supply rolls are arranged vertically, and the metal plate can be guided as it passes between the first roll and the second roll.

[0032] The above supply rolls are arranged back and forth, and the metal plate can be guided by passing over the upper portions of the first roll and the second roll.

[0033] Both ends of the first roll and the second roll can be connected to the pair of first lifting blocks, respectively.

[0034] In contrast, the above supply roll may be provided as one or three or more.

[0035] The above supply roll may not be self-driven, but may be a driven roll that rotates in contact with the supplied metal plate.

[0036] The above second lifting blocks may be provided as a pair on the left and right sides with the metal plate in between.

[0037] A pair of the above-mentioned side rolls can each be connected to a pair of the above-mentioned second lifting blocks.

[0038] In the supply direction of the metal plate, the side roll may be positioned between the supply roll and the press roll.

[0039] In contrast, the above-mentioned side roll may be positioned ahead of the supply roll.

[0040] Preferably, in the feed direction of the metal plate, the side roll is positioned between the feed roll and the press roll, and may be additionally positioned further forward than the feed roll.

[0041] The above rotation guide may include a bracket rotation pin rotatably supported on the lifting block with respect to the rotation center axis, and a roll bracket connected to the bracket rotation pin and rotatably supporting the side roll.

[0042] In another embodiment, the supply roll and the side roll may be installed to be vertically movable together.

[0043] To this end, the supply roll and the side roll can be connected together to a common lifting block.

[0044] The above-mentioned side roll may have a shape in which its radius gradually increases as it extends radially outward. Accordingly, the side roll can correspond to the feeding angle of the metal plate itself through its shape, so the rotation guide may be omitted.

[0045] The thickness as well as the width of the metal plate supplied to the above press roll may vary. Accordingly, the side roll may preferably be installed on the lifting block so as to be movable in the width direction.

[0046] One of the pair of press rolls may have a base support surface on which a base plate portion of a metal sheet is supported, and a mold groove portion recessed from the base support surface. The other press roll may have a base surface on its surface and a mold protrusion portion protruding from the base surface.

[0047] The gap between the base support surface and the base surface is set to be equal to or greater than the thickness of the metal plate. Accordingly, the base plate portion of the metal plate is not rolled, and its thickness can be maintained at a constant level.

[0048] The feeding angle of the metal plate can be determined within a range such that the metal plate supplied to the press roll comes into contact with the base support surface before coming into contact with the mold protrusion.

[0049] The supply angle of the metal plate may be equal to or greater than the angle of inclination (i) formed by the tangent of the base support surface with the front-rear direction at the point where the trajectory of a circle with a radius equal to the radius of the base support surface plus the thickness of the metal plate surface intersects with the trajectory of a circle with a radius corresponding to the longest radius of the mold protrusion.

[0050] The supply angle of the metal plate may correspond to or be greater than the inclination angle, but may be greater within a predetermined range. The range may be 5 degrees.

[0051] The present invention provides a method for processing a metal sheet applicable to the roll press equipment. This is a method for processing a metal sheet by supplying the metal sheet to the pair of press rolls.

[0052] According to the present invention, first, the metal plate is supplied in a state where the gap between the base support surface and the base surface is set to be equal to or greater than the thickness of the metal plate.

[0053] In addition, according to the present invention, the supply angle of the metal plate is set to be equal to or greater than the angle of inclination (i) formed by the tangent of the base support surface with the front-rear direction at the point where the trajectory of a circle with a radius equal to the radius of the base support surface plus the thickness of the metal plate and the trajectory of a circle with a radius corresponding to the longest radius of the mold protrusion intersect.

[0054] Accordingly, the metal plate supplied to the press roll is supplied to the pair of press rolls in a state where it is in contact with the base support surface first, before coming into contact with the mold protrusion.

[0055] The complementary uneven shapes provided on the surfaces of the driving roll and the driven roll plastically deform the base plate portion of the metal plate. As a result, a groove is formed on the surface of the base plate portion facing the mold protrusion of the press roll, and a projection is formed on the surface facing the mold groove of the press roll.

[0056] That is, the protrusion-side base surface provided with the protrusion on the base plate portion faces the base support surface, which is the surface of the press roll provided with the mold groove portion. And, the groove-side base surface provided with the groove on the base plate portion faces the base surface, which is the surface of the press roll provided with the mold protrusion portion.

[0057] The thickness of the metal plate is smaller than the distance between the base surface of the two press rolls and the base support surface. Therefore, during the plastic deformation process of the metal plate, the protruding base surface of the metal plate comes into contact with the base support surface of the press roll, and the plastic deformation is performed while being supported by the base support surface.

[0058] That is, the above metal plate may not be rolled to reduce its overall thickness by the press roll, but rather may have protrusions and grooves that are plastically processed.

[0059] Accordingly, the metal plate can be supplied to the press roll by a force pulling the metal plate in the conveying direction from the rear of the press roll. The force can be applied by a conveying roll.

[0060] The driving device can drive the press roll to cause the driving roll and the driven roll of the press roll to rotate.

[0061] The above-mentioned driving device may be a motor that generates rotational force. The motor may be an electric motor or a hydraulic motor.

[0062] The above drive device can also rotate the transfer roll. Since the transfer roll and the press roll are rotated by the same drive device, the rotation of the press roll and the rotation of the transfer roll can be interconnected.

[0063] Accordingly, the feeding speed of the metal plate to the press roll can be accurately regulated and controlled.

[0064] The above-mentioned transfer rollers can be arranged in a pair vertically. The processed metal plate can pass between the pair of transfer rollers and receive a transfer force.

[0065] The above pair of transfer rolls can be raised and lowered relative to each other. Accordingly, the distance between the pair of transfer rolls can be adjusted.

[0066] The rotation axis of the drive device and the rotation axis of the transfer roll can be interconnected and coupled via a belt. The belt may be a belt chain capable of accurately transmitting the rotation of the rotation axis of the drive device to the rotation axis of the transfer roll in proportion to the rotation. Effects of the invention

[0067] According to the present invention, when forming an uneven shape on a predetermined metal plate using a roll press, the plate is not stretched in the conveying direction, and only a predetermined area of ​​the plate to be formed with an uneven shape can be precisely plastically processed.

[0068] In addition to the effects described above, the specific effects of the present invention are described together with the specific details for implementing the invention below. Brief explanation of the drawing

[0069] FIGS. 1 and FIGS. 2 are perspective views showing the state of a roll press equipment according to the present invention processing a metal plate from different directions, respectively. Figure 3 is a plan view of the roll press equipment of Figure 2. FIG. 4 is a perspective view showing a roll press facility with the metal plate omitted. Fig. 5 is a front view of the roll press equipment of Fig. 4. Figure 6 shows a metal plate processed by a roll press. Fig. 7 is of Fig. 3 .7.-.7. This is a cross-sectional view. Fig. 8 is of Fig. 3 .8.-.8. This is a cross-sectional view. Fig. 9 is of Fig. 7 .9. This is an enlarged view of the part. Fig. 10 is of Fig. 9 .10. This is an enlarged view of the part. Fig. 11 is of Fig. 8 .11. This is an enlarged view of the part. FIG. 12 is a perspective view of the roll press equipment of FIG. 4 with a metal plate supply structure added. Fig. 13 is a side cross-sectional view of Fig. 12. FIG. 14 is an exploded view of a side roll assembly. FIG. 15 is a perspective view of the state in which the feeding angle of the metal sheet is changed in the roll press equipment of FIG. 12. Fig. 16 is a side cross-sectional view of Fig. 15. FIG. 17 is a perspective view of the roll press equipment of FIG. 12 with a metal plate conveying structure added. Fig. 18 is another perspective view of Fig. 17. Fig. 19 is a side cross-sectional view of the roll press equipment of Fig. 17. Specific details for implementing the invention

[0070] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0071] The present invention is not limited to the embodiments disclosed below, but can be modified and implemented in various different forms. The embodiments provided are merely intended 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. Accordingly, the present invention should be understood not to be limited to the embodiments disclosed below, but to include all modifications, equivalents, and substitutions that fall within the technical spirit and scope of the present invention, as well as substituting or adding the configuration of any one embodiment with the configuration of another embodiment.

[0072] The attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings; rather, it should be understood that they include all modifications, equivalents, and substitutions that fall within the spirit and technical scope of the invention. In the drawings, components may be depicted as being exaggeratedly large or small in size or thickness for the sake of convenience of understanding, but the scope of protection of the invention should not be interpreted restrictively as a result thereof.

[0073] The terms used in this specification are used merely to describe specific embodiments or examples and are not intended to limit the invention. Furthermore, singular expressions include plural expressions unless the context clearly indicates otherwise. Terms such as "includes" or "consists of" in this specification are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in this specification. That is, terms such as "includes" or "consists of" in this specification should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0074] 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. These terms are used solely for the purpose of distinguishing one component from another. Therefore, unless otherwise stated, the first component may be the second component.

[0075] When it is stated that one component is "connected" or "in contact" with another component, it should be understood that while it may be directly connected or in contact with that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "in direct contact" with another component, it should be understood that there are no other components in between.

[0076] When it is stated that one component is "above" or "below" another component, it should be understood that it is not only placed directly above the other component, but that another component may also exist in between.

[0077] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0078] Hereinafter, a roll press facility according to an embodiment of the present invention will be described.

[0079] The roll press equipment (10) of the embodiment is equipped with a base (20) that forms the floor of the equipment.

[0080] [Press Roll]

[0081] Referring to FIGS. 1 to 11, a pair of side supports (21) spaced apart in the width direction are installed on the base (20).

[0082] The above pair of side supports (21) are spaced apart from each other laterally.

[0083] Between the above pair of side supports (21), a pair of press rolls (30, 40) are installed such that both ends are each supported by the side supports (21). This may include a lower roll (30) constituting a driving roll and an upper roll (40) constituting a driven roll.

[0084] Complementary irregular shapes may be provided on the surfaces of the lower roll (30) and the upper roll (40).

[0085] One of the pair of press rolls (30) may have a base support surface (301) on its surface, on which a base plate portion (71) of a metal plate (70) to be described later is supported, and a mold groove portion (302) recessed from the base support surface (301). The other press roll (40) may have a base surface (401) on its surface and a mold protrusion portion (402) protruding from the base surface.

[0086] A predetermined metal plate (70) is supplied from the front to the rear between the lower roll (30) and the upper roll (40). The metal plate (70) may be placed in the front space of the roll press equipment (10) in a wound state in the form of a roll not shown. The metal plate (70) is unwound by an unwinder and can be continuously supplied between the lower roll (30) and the upper roll (40) in an unfolded state as shown and transported to the rear.

[0087] The continuously supplied metal plate (70) passes between the rotating lower roll (30) and the upper roll (40), undergoes plastic deformation corresponding to the complementary irregular shape provided on the surfaces of the lower roll (30) and the upper roll (40), and is continuously formed. Then, it can be wound into an unillustrated roll shape by a rewinder provided in the rear space of the roll press equipment (10).

[0088] An example is provided in which a plurality of matrix-shaped grooves in the shape of a square frustum are arranged along the width and circumferential directions on the surface of the lower roll (30), and a plurality of matrix-shaped protrusions in the shape of a square frustum are arranged likewise along the width and circumferential directions on the surface of the upper roll (40). However, the shape of the protrusions is not limited to this.

[0089] The metal plate (70) formed by the lower roll (30) and the upper roll (40) can be plastically processed in such a way that a groove (74) is provided on one side (714) of the base plate (71) and a protrusion (73) is provided on the opposite side (713), as shown in FIG. 6.

[0090] Unlike a general press device that performs plastic processing by moving up and down, the roll press of the embodiment precisely achieves parallel alignment and distance alignment of the center axes of the upper roll (40) and the lower roll (30), position alignment in the width direction, and position alignment in the circumferential direction.

[0091] The center axis alignment, distance alignment, and width direction position alignment of the upper roll (40) and the lower roll (30) can be achieved by accurately positioning the roll shafts of the upper roll (40) and the lower roll (30).

[0092] According to the roll press equipment (10) of the embodiment, a pair of side supports (21) are each provided with a slot (23) that extends in the vertical direction.

[0093] A first lower slide block (31) is installed at the bottom of the slot (23) provided in the one-sided side support (21), and a first upper slide block (41) is installed at the top thereof. Likewise, a second lower slide block (32) is installed at the bottom of the slot (23) provided in the other-sided side support (21), and a second upper slide block (42) is installed at the top thereof.

[0094] On one side of the width direction of the lower roll (30), a first lower roll shaft (33) is installed so as to be rotatably fixed to one end of the lower roll (30) in the width direction, and on the other side of the width direction, a second lower roll shaft (34) is installed so as to be rotatably fixed to the other end of the lower roll (30) in the width direction.

[0095] Likewise, on one side of the width direction of the upper roll (40), a first upper roll shaft (43) is installed so as to be rotatably fixed to one end of the width direction of the upper roll (40), and on the other side of the width direction, a second upper roll shaft (44) is installed so as to be rotatably fixed to the other end of the width direction of the upper roll (40).

[0096] The first lower slide block (31) rotatably supports the first lower roll shaft (33), and the second lower slide block (32) rotatably supports the second lower roll shaft (34).

[0097] Likewise, the first upper slide block (41) rotatably supports the first upper roll shaft (43), and the second upper slide block (42) rotatably supports the second upper roll shaft (44).

[0098] On the axial inner and outer sides of the slide blocks (31, 32, 41, 42), a widthwise extension portion is provided that extends further outward in the widthwise direction. The body portion of the slide block is placed in a space provided by the slot (23) of the side support (21), and the side support is placed between the widthwise extension portions of the slide blocks (31, 32, 41, 42) provided on the inner and outer sides, respectively.

[0099] If the width of the slot (23) measured in the front-rear direction of the equipment and the width of the slide block (31, 32, 41, 42) measured in the front-rear direction of the equipment correspond exactly, the side support (21) can be installed in the correct position of the base (20), and the slide block (31, 32, 41, 42) can be installed in the slot (23), thereby accurately aligning the front-rear positions of the lower roll (30) and the upper roll (40) with respect to the equipment (10).

[0100] Additionally, the slide blocks (31, 32, 41, 42) can each move up and down independently along the slot (23). Although not illustrated, the movement of these slide blocks (31, 32, 41, 42) can be achieved by a lifting device that operates automatically or manually.

[0101] Depending on the thickness of the metal plate (70) supplied between the lower roll (30) and the upper roll (40) and the height of the uneven shape to be processed on the metal plate (70), the gap between the lower roll (30) and the upper roll (40) can be set differently.

[0102] By aligning the slide blocks (31, 32, 41, 42) by raising and lowering them with the lifting device to correspond to the set interval, the vertical positions of the lower roll (30) and the upper roll (40) relative to the equipment (10) can be accurately aligned.

[0103] Referring to FIG. 3 and the like, the distance between the inner width-direction extension and the outer width-direction extension of the slide blocks (31, 32, 41, 42) is slightly greater than the thickness of the side support (21) placed between them. Accordingly, within an allowable range, each slide block (31, 32, 41, 42) can move to some extent in the left-right direction of the equipment (10) relative to the side support (21).

[0104] Accordingly, the left-right positions of the lower roll (30) and the upper roll (40) with respect to the equipment (10) can also be accurately aligned. Although not illustrated, it is obvious that a known fixed support structure can be provided that can fix the slide blocks (31, 32, 41, 42) with respect to the equipment (10) in a position where their left-right positions are accurately aligned.

[0105] In this way, the center axis alignment, distance alignment, and width direction position alignment of the lower roll (30) and the upper roll (40) can be accurately achieved through the alignment of the side support (21) and the slide block (31, 32, 41, 42).

[0106] The lower roll (30) is driven by a motor (25), which is a driving device, and rotates. The upper roll (40) rotates in a driven manner, precisely linked to the lower roll (30). Although using a motor (25) as in the embodiment may be the simplest and most efficient driving structure, the driving device of the present invention is not limited to a motor.

[0107] Meanwhile, the embodiment illustrates a structure in which the drive shaft (27) of the motor is directly connected to the first lower roll shaft (33) of the lower roll (30) to transmit rotational force. However, it is obvious that the driving force of the motor (25) can also be transmitted to the first lower roll shaft (33) through a reduction gear or the like to increase torque or decrease processing speed.

[0108] Additionally, the embodiment illustrates that the lower roll (30) is the driving roll, but it is obvious that the upper roll (40) may be the driving roll and the lower roll (30) may be the driven roll.

[0109] The rotational movement of the lower roll (30) is transmitted to the upper roll (40) through a drive gear (37) that is linked to the rotation of the lower roll (30).

[0110] The rotational force of the above-mentioned drive gear (37) is transmitted to the driven gear (47) that meshes with the above-mentioned drive gear (37), and the above-mentioned upper roll (40) rotates in conjunction with the driven gear (47).

[0111] The above drive gear (37) is installed on the second lower roll shaft (34) of the lower roll (30).

[0112] Specifically, a lower insertion shaft (35) having a diameter smaller than that of the second lower roll shaft (34) is provided at the axial outer end of the second lower roll shaft (34). A lower external insertion shaft (36) is externally inserted into the lower insertion shaft (35). With the lower external insertion shaft (36) externally inserted into the lower insertion shaft (35), the outer surface of the lower insertion shaft (35) engages with the inner surface of the lower external insertion shaft (36).

[0113] On the outer surface of the lower insertion shaft (35) and the inner surface of the lower insertion shaft (36), a key (351) and a keyway (361) are respectively provided, which are axially extended and have mutually complementary shapes. Accordingly, the lower insertion shaft (36) is rotationally constrained with respect to the lower insertion shaft (35).

[0114] A lower shaft cap (39) is fixed axially to the axial outer end of the lower internal shaft (35). Specifically, the lower shaft cap (39) is tightened axially inwardly to the lower internal shaft (35) through a fixing bolt (393). As the lower shaft cap (39) is tightened by the fixing bolt (393), the lower shaft cap (39) presses the lower external shaft (36) axially inwardly. Accordingly, the lower shaft cap (39) restrains the lower external shaft (36) axially inwardly.

[0115] The axial inner side of the lower intercalation shaft (36) is axially supported by the stepped portion of the second lower roll shaft (34) defined by the lower intercalation shaft (35). The axial outer side of the lower intercalation shaft (36) is supported by the lower shaft cap (39). Accordingly, the axial position of the lower intercalation shaft (36) relative to the lower roll (30) is accurately aligned.

[0116] A predetermined hole is provided in the center of the drive gear (37). The inner surface of the drive gear (37), defined by this hole, engages with the outer surface of the lower external shaft (36) so as to be able to move in a circumferential direction. Accordingly, the lower external shaft (36) supports the drive gear (37) so as to be rotatable.

[0117] The lower extra-spin shaft (36) has a flange (362) that extends radially outward from it and is connected to the lower extra-spin shaft (36). In an embodiment, the flange (362) is illustrated as being connected to the axially outward side of the lower extra-spin shaft (36).

[0118] The drive gear (37) may come into contact with the flange (362) in the axial direction. The drive gear (37) is provided with a receiving groove (372) that receives the flange (362) in the axial direction. Referring to FIG. 8, when the flange (362) is received in the receiving groove (372) of the drive gear (37), the tooth profile of the drive gear (37) is provided radially outward from the receiving groove (372). In this way, the drive gear (37) can form a single gear shape together with the flange (362).

[0119] The above drive gear (37) can be rotatably constrained to the second lower roll shaft (34) by being rotatably constrained to the flange (362).

[0120] The drive gear (37) is selectively rotationally constrained to the flange (362) by a fastener (38). For example, when the fastener (38) is tightened, the drive gear (37) is rotationally constrained to the flange (362), and when the fastener (38) is released, the rotational constraint of the drive gear (37) relative to the flange (362) is released. When the fastener (38) releases the constraint on the drive gear (37), the drive gear (37) can rotate relative to the flange (362).

[0121] In the above flange (362), a plurality of arc-shaped elongated holes (364) extending in the circumferential direction are provided at equal intervals along the circumferential direction, and the fastener (38) penetrates the flange (362) through the elongated holes (364). In the embodiment, the fastener (38) is exemplified as a plurality of tightening bolts (38) that penetrate the elongated holes (364) and are screw-coupled to the tap holes (374) provided in the drive gear (37).

[0122] The above fastener (38) presses the drive gear (37) axially against the flange (362) to rotately restrain the drive gear (37) against the flange (362).

[0123] Even when the fastener (38) is released, the fastener (38) can remain in a state where it penetrates the elongated hole (364). Accordingly, the relative rotational tolerance of the drive gear (37) with respect to the flange (362) is determined by the interference between the elongated hole (364) and the fastener (38). That is, the elongated hole (364) regulates the relative rotational tolerance of the drive gear (37) with respect to the flange (362).

[0124] The above driven gear (47) is engaged with the above driving gear (37) and is installed on the second upper roll shaft (44) of the above upper roll (40).

[0125] In the upper roll (40), the coupling structure of the second upper roll shaft (44), the upper internal shaft (45) having a key (451), the upper external shaft (46) having a keyway (461) and a flange (462) and an elongated hole (464), the driven gear (47) having a receiving groove (472) and a tap hole (474) and being tightened to a fastener (48), and the upper shaft cap (49) fixed by a fixing bolt (493) corresponds to the case of the lower roll (30) mentioned earlier, so a redundant description is omitted.

[0126] The gap between the lower roll (30) and the upper roll (40) can be set differently depending on the thickness of the supplied metal plate (70) and the height of the uneven shape to be processed on the metal plate (70).

[0127] Accordingly, the driving gear (37) and the driven gear (47) of the embodiment are exemplified as spur gears in which the actual radius of the pitch circle corresponds to each other and the circumferential pitch corresponds to each other. Then, even if the distance between the rotation axes of the driving gear (37) and the driven gear (47) becomes slightly further or closer, the rotational force of the driving gear (37) can be accurately transmitted to the driven gear (47).

[0128] However, at this time, the degree of backlash between the driving gear (37) and the driven gear (47) may vary.

[0129] The roll press equipment (10) of the embodiment can eliminate the backlash by utilizing the fact that when the fasteners (38, 48) are released, the gears (37, 47) each become relatively rotatable within a predetermined range relative to the flanges (362, 462).

[0130] For example, by utilizing the fact that the gear (37, 47) does not interact with the roll (30, 40) when the release is in place, the circumferential positions of the lower roll (30) and the upper roll (40) are first accurately aligned without interference with the meshing structure of the gear (37, 47), and then the gear (37, 47) is rotated relative to the lower roll (30) and the upper roll (40) so that the driving gear (37) and the driven gear (47) mesh accurately along the driving direction without backlash, and then the fastener (38, 40) is tightened to fix the gear (37, 47) so that it is rotationally constrained to the flange (362, 462), thereby eliminating backlash.

[0131] The gap between the base support surface (301) and the base surface (401) is set to be equal to or greater than the thickness of the metal plate (70). Accordingly, the base plate portion (71) of the metal plate (70) is not rolled even when passing through the press rolls (30, 40), and its thickness can be maintained at a constant level.

[0132] Taking into account the specificity of this processing, the supply angle (a) of the metal plate (70) can be determined within a range such that the metal plate (70) supplied to the press rolls (30, 40) comes into contact with the base support surface (301) before coming into contact with the mold protrusion (402).

[0133] Referring to FIG. 7 and FIG. 10, the supply angle (a) of the metal plate (70) may be equal to or greater than the angle of inclination (i) formed by the tangent (L) of the base support surface with the front-rear direction at the point (A) where the trajectory (J) of a circle with a radius (R1+T) obtained by adding the thickness (T) of the metal plate to the radius (R1) of the base support surface (301) and the trajectory (K) of a circle with a radius corresponding to the longest radius (R2) of the mold protrusion (402) intersect. That is, i ≤ a.

[0134] The supply angle (a) of the metal plate (70) corresponds to or is greater than the inclination angle (i), but may be greater within a predetermined range (d). That is, i ≤ a ≤ i + d.

[0135] For example, the above range (d) may be 5 degrees. That is, i ≤ a ≤ i + 5. If the above range is greater than 5 degrees, the effect of the metal plate adhering to the base support surface (301) of the lower roll (30) is no longer increased, and there is the inconvenience of having to lower only the position of the plate roll for supplying the metal plate and the guide part to be described later.

[0136] When a metal plate (70) is supplied in this manner, the metal plate (70), which has a thickness thinner than the gap between the base surface (401) and the base support surface (301) of the two press rolls (30, 40), is plastically deformed so that the groove side base surface (714) is pressed by the mold protrusion (402) while the protruding side base surface (713) of the base plate part (71) is supported by the base support surface (301), as shown in FIGS. 9 to 11, so that the protruding part (73) and the groove part (74) are formed.

[0137] [Guide Department]

[0138] Referring to FIGS. 12 to 16 below, a supply structure for supplying the metal plate (70) to the press rolls (30, 40) will be described.

[0139] The roll press equipment (10) includes a guide section (51, 52, 61) positioned in front of the press roll (30, 40) to guide the supply of a metal plate (70) supplied to the press roll.

[0140] The above guide section includes supply rolls (51, 52) and a pair of side rolls (61).

[0141] The above-mentioned supply roll is installed to be rotatable around a rotation axis parallel to the rotation axis of the above-mentioned press roll. The above-mentioned supply roll is not driven independently but can rotate in a driven manner while in contact with the supplied metal plate.

[0142] The above supply roll includes a first roll (51) and a second roll (52) that extend in the width direction and are arranged parallel to each other. In an embodiment, the first roll (51) and the second roll (52) are exemplified as being arranged vertically. Accordingly, the metal plate (70) can be guided to be supplied by passing between the first roll (51) and the second roll (52).

[0143] However, the first roll and the second roll may be arranged in a front-to-back direction, unlike in the embodiment. Then, the metal plate (70) can be guided by passing over the top of the first roll (51) and the second roll (52).

[0144] Also, unlike the example, the supply roll may be provided as one or three or more.

[0145] The above side rolls (61) are rotatably installed on both sides in the width direction of the metal plate, centered on a rotation axis parallel to the normal of the plane defined by the metal plate supplied to the press rolls. The above side rolls (61) are positioned on both sides in the width direction of the metal plate (70) to guide the sides of the metal plate (70).

[0146] The above-mentioned side roll (61) may have a shape in which its radius gradually increases as it extends radially outward. Accordingly, the side roll (61) can correspond to the feeding angle of the metal plate material through its shape itself, so the rotation guide described later may be omitted.

[0147] In an embodiment, the side roll (61) is exemplified as being positioned between the supply roll (51, 52) and the press roll (30, 40) in the supply direction of the metal plate (70).

[0148] However, unlike the embodiment, the side roll may be positioned in front of the supply roll.

[0149] Also, unlike the embodiment, in the supply direction of the metal plate (70), the side rolls (61) are supplied in pairs, one pair is positioned between the supply rolls (51, 52) and the press rolls (30, 40), and the other pair may be additionally positioned further forward than the supply rolls (51, 52).

[0150] [Elevator Information Department]

[0151] The above roll press equipment (10) further includes a lifting guide section (241, 242, 53, 64) that guides the lifting of the guide section.

[0152] The supply angle (a) of the metal plate (70) supplied to the press roll (30, 40) is regulated by the guide part being raised by the lifting guide part.

[0153] The lifting guide unit includes a pair of front supports (22) each having rails (241, 242) that are positioned on both front sides of the press roll and extend in the vertical direction, and lifting blocks (53, 54) that move up and down along the rails (241, 242).

[0154] In an embodiment, the supply rolls (51, 52) and the side roll (61) are exemplified as being able to move up and down independently of each other. To this end, the lifting block may include a first lifting block (53) and a second lifting block (64) that move up and down independently with respect to the front support (22). The rail of the front support (22) includes a first rail (241) that guides the lifting movement of the first lifting block (53) and a second rail (242) that guides the lifting movement of the second lifting block (64).

[0155] The supply rolls (51, 52) are connected to the first lifting block (53) and move up and down together with the first lifting block (53). The side roll (61) is connected to the second lifting block (64) and moves up and down together with the second lifting block (64).

[0156] The first lifting block (53) is provided as a pair on the left and right with the metal plate (70) in between, and both ends of the supply rolls (51, 52) are connected to the pair of first lifting blocks (53) respectively. Specifically, both ends of both the first roll (51) and the second roll (52) can be connected to the pair of first lifting blocks (53) respectively.

[0157] According to the lifting of the first lifting block (53) above, the supply angle (a) of the metal plate (70) can be regulated.

[0158] The second lifting block (64) is also provided as a pair on the left and right with the metal plate (70) in between, and the pair of side rolls (61) are each connected to the pair of second lifting blocks (64).

[0159] The metal sheet supplied to the above press rolls (30, 40) may vary in width as well as thickness. Accordingly, the side roll (61) may be installed to be movable in a direction corresponding to the width direction of the metal sheet.

[0160] According to an embodiment, the side roll (61) is exemplified as being installed to be movable in a direction corresponding to the width direction of the metal plate (70) with respect to the lifting block. Referring to FIG. 14, a roll bracket (62) supporting the rotation of the side roll (61) is inserted into a circular hole of the second lifting block (64) through a bracket pivot pin (63). At this time, it can be confirmed that the width direction position of the side roll (61) with respect to the second lifting block (64) can be determined by adjusting the insertion depth of the bracket pivot pin (63) with respect to the circular hole.

[0161] An example is illustrated in which the supply rolls (51, 52) and the side rolls (61) are connected to each lifting block (53, 64) to form a supply roll assembly (50) and a side roll assembly (60).

[0162] However, unlike this embodiment, the supply rolls (51, 52) and the side roll (61) may be connected together to a common lifting block and installed to be able to be lifted together. Even so, the side roll (61) has a shape in which its radius gradually increases as it moves radially outward, and its shape itself can correspond to the supply angle of the metal plate, so the rotation guide described later can be omitted.

[0163] [Meeting Guide]

[0164] The roll press equipment (10) further includes a rotation guide (63, 64) that guides the guide member to rotate about a rotation center axis extending in the width direction. The side roll (61) is installed so as to be rotatable about the rotation center axis at both ends of the metal plate (70) in the width direction. The rotation guide guides the guide member to rotate in correspondence with the feeding angle of the metal plate.

[0165] Specifically, the rotation guide comprises a bracket rotation pin (63) that is rotatably supported on the second lifting block (64) with respect to the rotation center axis, and a roll bracket (62) connected to the bracket rotation pin and rotatably supporting the side roll (61). The bracket rotation pin (63) can rotate freely with respect to the second lifting block (64), and accordingly, the bracket rotation pin (63) and the roll bracket (62) can rotate naturally in correspondence with the supply angle (a) of the metal plate (70).

[0166] [Method for supplying metal plates]

[0167] The method for processing a metal plate according to the embodiment first sets the gap between the base support surface (301) and the base surface (401) of a pair of press rolls (30, 40) to be equal to or greater than the thickness of the metal plate (70).

[0168] This can be adjusted by setting the height of the slide blocks (31, 32, 41, 42) as previously explained. After setting the height of the slide blocks (31, 32, 41, 42) in this manner, the widthwise positions of the slide blocks (31, 32, 41, 42) corresponding to the widthwise direction of the metal plate (70) are aligned to realign the widthwise positions of the two press rolls. Subsequently, the circumferential positions of the two press rolls (30, 40) are realigned, and the backlash of the driving gear (37) and the driven gear (47) is also removed.

[0169] According to this, as the distance between the base support surface (301) and the base surface (401) becomes greater, the depth of the mold protrusion (402) inserted into the mold groove (302) becomes shallower, so it can be seen that the depth or height of the protrusion (73) and groove (74) formed on the metal plate (70) becomes shallower or lower.

[0170] Next, the position of the lifting blocks (53, 54) is adjusted so that the supply angle (a) of the metal plate (70) is equal to or greater than the inclination angle (i) of the predetermined tangent (L) described above. Accordingly, the rotation guide rotates the side roll (61) to correspond to the supply angle (a).

[0171] Then, the metal plate (70) supplied to the press rolls (30, 40) is supplied between the pair of press rolls (30, 40) in a state where it first contacts the base support surface (301) before contacting the mold protrusion (402).

[0172] Accordingly, the protruding side surface (713) provided with the protrusion (73) in the base plate portion (71) comes into contact with the base support surface (301), which is the surface of the press roll (30) provided with the mold groove portion (302). Then, the groove side surface (714) provided with the groove (74) in the base plate portion (71) faces the base surface (401), which is the surface of the press roll (40) provided with the mold protrusion portion (402), and is pressed by the mold protrusion portion (402).

[0173] The complementary uneven shape provided on the surface of the driving roll (30) and the driven roll (40) plastically deforms certain parts of the base plate portion (71) of the metal plate (70). As a result, a groove portion (74) is formed on the surface (714) of the base plate portion (71) facing the mold protrusion portion (402) of the press roll (40), and a projection portion (73) is formed on the surface (713) facing the mold groove portion (302) of the press roll (30).

[0174] [Transfer device]

[0175] The conveying device for the metal plate will be described below with reference to FIGS. 16 to 19.

[0176] The above metal plate (70) is not rolled to thin the overall thickness of the base plate portion (71) by the press rolls (30, 40), but rather the protrusions (73) and grooves (74) in a predetermined area of ​​the base plate portion (71) are plastically processed. Therefore, the press rolls (30, 40) may be unsuitable for transmitting a conveying force to the metal plate (70) to convey the metal plate (70) in the conveying direction.

[0177] Taking these points into consideration, an embodiment of the present invention discloses a structure for supplying the metal plate (70) to the press roll by means of a force pulling the metal plate (70) in the conveying direction from the rear of the press roll (30, 40).

[0178] The above transfer force can be transferred to the metal plate (70) by a transfer roll positioned behind the press roll (30, 40).

[0179] The transfer roll (80) may be driven by the drive device (25) that drives the press roll (30, 40). According to an embodiment, since the same drive device (25) rotates both the transfer roll (80) and the press roll (30, 40), the rotation of the press roll (30, 40) and the rotation of the transfer roll (80) can be coupled with each other, and the rotation ratio of the two can be accurately maintained. Accordingly, the feeding speed of the metal plate (70) to the press roll (30, 40) can be accurately regulated and controlled.

[0180] The above transfer rolls include a first transfer roll (81) and a second transfer roll (82) arranged in a pair vertically. A processed metal plate is interposed between the pair of transfer rolls and can be transferred by receiving the rotational force of the transfer rolls.

[0181] The above pair of transfer rollers are installed so as to be able to move up and down relative to each other.

[0182] To this end, a pair of rear supports (28) are spaced apart in the width direction at the rear of the press rolls (30, 40), and a third rail (29) is formed extending vertically on the rear supports (28), and a third lifting block (85) and a fourth lifting block (86) capable of moving up and down along the third rail are installed on the third rail.

[0183] Both ends of the first transfer roll (81) are rotatably connected to a pair of the third lifting blocks (85), and both ends of the second transfer roll (82) are also rotatably connected to a pair of the fourth lifting blocks (86).

[0184] Accordingly, the gap between a pair of transfer rolls can be adjusted.

[0185] The spacing and height position of the above pair of transfer rolls can be determined by the height of the protrusion (73) and groove (74) formed on the metal plate (70).

[0186] The drive shaft (27) of the above drive device (25) and the rotation shaft of the above transfer roll can be interconnected and operated through a belt.

[0187] The above belt may be a belt chain (90) capable of accurately transmitting the rotation of the rotation axis of the drive device to the rotation axis of the transfer roll according to the rotation ratio. The belt chain (90) is connected to one rotation axis of the first transfer roll (81) and the drive shaft (27). An unillustrated sprocket is installed on the rotation axis of the first transfer roll (81) and the drive shaft (27) to engage with the belt chain (90) in a meshing manner.

[0188] A driving gear (83) and a driven gear (84) that interlock to transmit rotational force may be respectively installed on the other side rotation axis of the first transfer roll (81) and the other side rotation axis of the second transfer roll (82).

[0189] Although the present invention has been described above with reference to the illustrated drawings, the present invention is not limited by the embodiments and drawings disclosed in this specification, and it is obvious that various modifications can be made by a person skilled in the art within the scope of the technical concept of the present invention. Furthermore, even if the effects of the configuration according to the present invention were not explicitly described while describing the embodiments of the present invention above, it is natural to acknowledge that the effects predictable by said configuration should also be recognized. Explanation of the symbols

[0190] 10: Roll Press Equipment 20: Bass 21: Side support 22: Front Support 23: Slot 241: 1st rail 242: Second Rail 25: Motor (drive device) 27: Drive shaft 28: Rear support 29: Third Rail 30: Lower roll (drive roll) 301: Base support surface 302: Mold groove 31: 1st lower slide block 32: Second lower slide block 33: First lower roll shaft 34: Second lower roll shaft 35: Lower intercalation shaft 351: Key 36: Lower extrapolation axis 361: Key Home 362: Flange 364: Long ball 37: Drive gear 372: Acceptance Home 374: Taphole 38: Fastener (tightening bolt) 39: Lower shaft cap 393: Fixing bolt 40: Upper roll (driven roll) 401: Basic surface 402: Mold protrusion 41: 1st upper slide block 42: Second upper slide block 43: First upper roll shaft 44: Second upper roll shaft 45: Upper intercalation shaft 451: Key 46: Upper extrapolation axis 461: Key Home 462: Flange 464: Long ball 47: Driven gear 472: Acceptance Home 474: Tap hole 48: Fastener (tightening bolt) 49: Upper shaft cap 493: Fixing bolt 50: Supply roll assembly 51: 1st Roll 52: 2nd Roll 53: 1st Elevator Block 60: Side roll assembly 61: Side roll 62: Roll bracket 63: Bracket pivot pin 64: 2nd Elevator Block 70: Metal sheet 71: Base plate 713: Protruding side surface 714: Home side surface 73: Protrusion 74: Homebu 80: Transfer Roll 81: 1st transfer roll 82: Second transfer roll 83: Driving gear 84: Driven gear 85: 3rd Elevator Block 86: 4th Elevator Block 90: Chain

Claims

Claim 1 A roll press apparatus comprising: a press roll including a lower roll and an upper roll having a complementary uneven shape formed on their periphery surfaces; a driving device that transmits driving force to the press roll; a guide portion disposed in front of the press roll to guide the supply of a metal plate material supplied to the press roll; and a lifting guide portion that guides the lifting of the guide portion; wherein the supply angle of the metal plate material supplied to the press roll is regulated as the guide portion is lifted by the lifting guide portion. Claim 2 A roll press apparatus according to claim 1, wherein the lifting guide comprises: a front support having a rail extending in the vertical direction and disposed on both front sides of the press roll; and a lifting block that moves up and down along the rail. Claim 3 A roll press apparatus according to claim 1, wherein the guide portion comprises: a supply roll rotatably installed on a lifting block with respect to a rotation axis parallel to the rotation axis of the press roll; and side rolls rotatably installed on both sides in the width direction of the metal plate with respect to a rotation axis parallel to the normal of the plane defined by the metal plate supplied to the press roll. Claim 4 A roll press facility according to claim 3, wherein the supply roll and the side roll are installed to be independently movable from each other. Claim 5 A roll press facility according to claim 3, further comprising a rotation guide member that guides the guide member to rotate about a rotation center axis extending in the width direction, wherein the rotation guide member guides the guide member to rotate in correspondence with the supply angle of the metal plate, and the side roll is installed to be rotatable about the rotation center axis with respect to the lifting block. Claim 6 A roll press apparatus according to claim 5, wherein the rotation guide comprises: a bracket rotation pin rotatably supported on the lifting block with respect to the rotation center axis; and a roll bracket connected to the bracket rotation pin and rotatably supporting the side roll. Claim 7 A roll press apparatus according to claim 1, wherein one of the lower roll and the upper roll has a base support surface on which a base plate portion of a metal plate is supported and a mold groove portion recessed from the base support surface, and the other press roll has a base surface and a mold protrusion portion protruding from the base surface on which the base support surface is supported, and the gap between the base support surface and the base surface is equal to or greater than the thickness of the metal plate. Claim 8 A roll press apparatus according to claim 7, wherein the feeding angle of the metal plate is determined within a range such that the metal plate supplied to the press roll comes into contact with the base support surface first before coming into contact with the mold protrusion. Claim 9 A roll press facility according to claim 7, wherein the supply angle of the metal plate is equal to or greater than the inclination angle (i) formed by the tangent of the base support surface with the front-rear direction at the point where the trajectory of a circle with a radius equal to the radius of the base support surface plus the thickness of the metal plate and the trajectory of a circle with a radius corresponding to the longest radius of the mold protrusion intersect, and is within 5 degrees greater than that. Claim 10 A method for processing a metal plate by supplying a metal plate to the pair of press rolls, wherein one of a pair of press rolls comprising a lower roll and an upper roll having a shape of protrusions and indentations complementary to the circumferential surface is provided with a base support surface on which a base plate portion of a metal plate is supported and a mold groove portion recessed from the base support surface, and the other of the pair of press rolls is provided with a base surface and a mold protrusion portion protruding from the base surface on its surface, wherein the metal plate is supplied in a state in which the gap between the base support surface and the base surface is set to be equal to or greater than the thickness of the metal plate, and the supply angle of the metal plate is equal to or greater than the angle of inclination formed by the tangent of the base support surface with the front-rear direction at the point where the trajectory of a circle with a radius equal to the radius of the base support surface plus the thickness of the metal plate intersects with the trajectory of a circle with a radius corresponding to the longest radius of the mold protrusion portion, so that the metal plate supplied to the press rolls is supplied to the pair of press rolls in a state in which it first contacts the base support surface before contacting the mold protrusion portion. method.

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