JP2006000951A - Molding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a molding device manufacturing moldings of various shapes and sizes with L-shaped cross sections with high dimensional accuracy. <P>SOLUTION: This molding device 1 is provided with: a bending position holding part 2 having a mechanism for adjusting and holding the width direction end position of a long-sized material 9 to correspond to the bending position of a long side of L-shape; a bending part 3 having three pairs of bending rollers different in roller gradient from one another, sequentially from the small roller gradient and bending the material 9 in the bending position to perform L-shaped bending; a cutting part 4 having a mechanism for cutting the side to be the short side of the L-shaped material 9 into a predetermined dimension; a roller bending mechanism part 6 for performing roller bending of circular arc shape to an L-shaped long-sized material 19 obtained up to the cutting part 4; a control panel 8 having a function of setting the production number of seal fins for a steam turbine produced by the molding device 1 and controlling the cut length, an automatic operating function, and the like; and various kinds of auxiliary apparatuses required for various control and automatic operation. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a molding apparatus used for manufacturing a molded body having an L-shaped cross section, such as a seal fin installed in a non-contact seal portion of a steam turbine, for example.

  In a steam turbine, a plurality of seal fins are arranged in order to suppress steam leakage at the gap between the rotating part and the stationary part such as the shaft gland part where the turbine shaft passes through the casing, the moving blade, and the tip of the stationary blade. A labyrinth packing is provided. This seal fin is made of a metal thin plate made of a heat-resistant steel (stainless steel, etc.) alloy steel material, and has an L-shaped cross-section and an arc-shaped longitudinal direction ( Hereinafter, this implantable seal fin is also simply referred to as a seal fin). (See, for example, Patent Documents 1 and 2). Thus, in order to produce a molded body having an L-shaped cross section from a metal thin plate, including cases other than the seal fins of a steam turbine, a press bending method is used, and a long molded body or metal material is used. A roll bending method is generally used for arc-shaped forming of a thin plate (see, for example, Non-Patent Documents 1 to 3).

  Hereinafter, a case of a seal fin of a steam turbine will be described as an example, and a molded body having an L-shaped cross section and formed in an arc shape and a conventional molding method thereof will be described with reference to FIGS. FIG. 14 is a front view showing the main part of the seal fin of the steam turbine, where (a) shows the rotating part and (b) shows the stationary part. FIG. 15 is a cross-sectional view of the seal fin according to FIG. 14, wherein (a) shows the case of a normal type seal fin, and (b) shows the case of a stepped type seal fin. FIGS. 16A and 16B are explanatory views for explaining a conventional arc-shaped forming method of the seal fin according to FIGS. 14 and 15, wherein FIG. 16A is a front view, and FIG. 16B is a top view in FIG. It is. FIGS. 17A and 17B are explanatory views for explaining a conventional molding method in which the cross section of the seal fin shown in FIGS. 14 and 15 is processed into an L shape. FIG. 17A is a top view, and FIG. It is sectional drawing in (a).

  As shown in FIG. 14 and FIG. 15, the seal fin of the steam turbine, which is a molded body having an L-shaped cross-sectional shape and formed in an arc shape, has an L-shaped cross-sectional shape, and its length direction. Has a circular arc shape with a certain curvature, the sealing fin 91 for the stationary part is semicircular, and the sealing fin 92 for the rotating part is generally circular and has one opening 93. Is. Thus, the seal fin 91 and the seal fin 92 have different arc-shaped bending directions. In FIG. 14, R is the bending radius of the seal fins 91 and 92. The cross-sectional shape of the seal fins 91 and 92 is that the plate thickness is t, the width of the long side of the L-shaped cross section is B, and the width of the short side of the L-shaped cross section is C. It is attached to a predetermined part of the steam turbine at part C. Further, as shown in FIG. 15B, the seal fins 91 and 92 of the steam turbine have a stationary part (in the case of a seal fin for a rotating part (for example, turbine rotor, moving blade) constituting the labyrinth packing). For example, in the case of a casing, a stationary blade), or a seal fin for a stationary part, it is a rotating part. Some have a stepped portion 94 at a portion facing each other, that is, on one side.

  Next, an outline of a conventional molding method of seal fins 91 and 92, which are molded bodies having an L-shaped cross-sectional shape and formed in an arc shape with a certain curvature, will be described. The forming process for the material 9 which is a long material having a width W (≈long side width B + short side width C) and a plate thickness t of the alloy steel material thin plate of the seal fins 91 and 92 is first performed by the width W of the material 9. On the other hand, a forming process for giving an arc shape having a constant curvature in the length direction is performed using a roll processing method. As shown in FIG. 16, this material 9 is rolled by, for example, a three-roll method (pyramid shape) using a total of three rolls of fixed rollers 95 and 95 and a movable roller 96. The W direction is sandwiched between three rolls as shown in the figure, the fixed rollers 95 and 95 are rotated in the direction of the arrow in FIG. 16, and the material 9 is pressed against the fixed rollers 95 and 95 by the movable roller 96. Is formed into an arc shape having a certain curvature.

At this time, the bending radius of the material 9 can take an arbitrary value by adjusting the push amount D of the movable roller 96. Further, as the fixed rollers 95 and 95 rotate, the material 9 moves in the direction of the white arrow in FIG. In addition, the opening part 93 is formed in the raw material 9 in a state where the roll processing for the all-round seal fin 92 is performed at the time of the roll processing. The material 9 subjected to the roll processing is then subjected to press processing for forming a cross-sectional shape into an L shape. FIG. 17 illustrates the case of pressing the seal fin 92. The press working of the material 9 subjected to the roll processing is performed using, for example, a male die 97 and a female die 98, and the material 9 subjected to the roll processing is placed on the upper surface of the fixed male die 97. In this state, the female mold 98 is pressed in the direction of the arrow in FIG.
Japanese Patent Laid-Open No. 5-125904 (Page 2, Fig. 3) Japanese Patent Laid-Open No. 11-13409 (page 2, FIG. 3) Published by the Japan Society for Technology of Plasticity, “Press Processing Manual” published by Maruzen Co., Ltd., 1975, p. 208-209 New Press Processing Data Book Editorial Committee “New Press Processing Data Book” published by Nihon Kogyo Shimbun Co., Ltd., 1993, p. 149-150 Edited by the Japan Society for Technology of Plasticity “Bending”, published by Corona Inc., 1995, p. 112-113

  The thin plate material forming method according to the prior art employed for the production of the seal fin of the steam turbine, which is a molded body having an L-shaped cross-sectional shape and formed in an arc shape, has a large amount of the same shape. However, there are the following problems when the object of use is limited to a specific object such as a seal fin of a steam turbine. In other words, the steam turbine is not a mass-produced product, and it is a product that needs to be prepared for different specifications for each unit, and the seal fins 91 and 92 are also installed in each unit. Of various shapes and dimensions required for the above (separate values for rotating part and stationary part in FIGS. 14 and 15, arc bending radius R, width B, width C, thickness t, etc.) is required. Thus, it is difficult to use the same fixed roller 95, movable roller 96, male die 97, and female die 98 when manufacturing the seal fins 91 and 92 having such a wide variety of shapes and sizes, and different shapes.・ Currently, many fixed rollers, movable rollers, male dies, and female dies are prepared according to the size of the sealing fins 91 and 92.

In addition, regarding the material 9, it is necessary to prepare the material 9 having various types of widths W in accordance with various dimensions of the seal fins 91 and 92 (widths B and C in FIGS. 14 and 15). For this purpose, workability is improved in many aspects, such as production and maintenance of a wide variety of jigs and tools, acquisition and storage management of various types of materials 9, and change of setup accompanying changes in tools and materials 9. Bad things are a problem. Further, since the plate thickness t of the seal fins 91 and 92 is very thin, the material 9 is likely to be twisted during bending using the fixed roller 95 and the movable roller 96, and this is satisfactory in processing dimensional accuracy. It is also a problem that something that cannot be done occurs.
The problems described above with regard to the seal fins 91 and 92 of the steam turbine are not limited to the production of the seal fins of the steam turbine. In the case of the above, it can occur at the same time when a molded body having an L-shaped cross-sectional shape and having an arc shape is manufactured. In addition, these problems are almost the same even when manufacturing a long molded body having an L-shaped cross-sectional shape, or when applying an arc-shaped bending process to a long material having an L-shaped cross-sectional shape. It can be a common problem. Accordingly, an object of the present invention is to provide a molding apparatus capable of manufacturing a molded body having an L-shaped cross-sectional shape having various shapes and dimensions with high dimensional accuracy.

In the present invention, the aforementioned object is
1) A forming apparatus for obtaining a long material having an L-shaped cross-sectional shape by subjecting a long material having a flat cross-sectional shape to a bending process, and an end portion in the width direction of the long material Bending position holding unit having a bending position adjusting / holding body that adjusts and holds the position at a predetermined position corresponding to the position where the L-shaped bending is performed on the long material, and a plurality of pairs of bending forming rollers. And bending the long material transferred through the bending position holding portion at a predetermined position in the width direction to perform L-shaped bending, and bending at the bending portion of the long material. A cutting blade mechanism section that cuts the width of any one side of the L-shape obtained by molding at a predetermined position; and a front side of the cutting blade mechanism section with respect to the transfer direction of the long material; L-shaped bend forming is performed at the bend forming part arranged at the rear The long material is held in a predetermined position corresponding to the cutting position of the side to be cut, while the surface including the side to be cut by the cutting blade mechanism of the long material is held in a substantially vertical state. A cutting portion having a plurality of long material support mechanisms having a cutting position adjustment / holding body for adjusting / holding, or 2) bending a long material having a flat cross-sectional shape. With a molding apparatus that obtains a long material having an L-shaped cross-sectional shape and bending the long material having an L-shaped cross-sectional shape to obtain an arc-shaped molded body having a constant curvature. A bending position adjustment / holding body having a bending position adjustment / holding body that adjusts / holds an end position in the width direction of the long material at a predetermined position corresponding to a position where an L-shaped bending process is performed on the long material. Part and a plurality of bending roller pairs for bending The bending material is bent at a predetermined position in the width direction by bending the long material transferred through the holding unit, and bent at the bending portion of the long material. A cutting blade mechanism section that cuts the width of any one side of the L-shape obtained in this way at a predetermined position, and arranged in front of and behind the cutting blade mechanism section with respect to the transfer direction of the long material. The surface including the side to be cut by the cutting blade mechanism portion of the long material subjected to L-shaped bending at the bending portion is held so as to be substantially vertical, and this cutting target A long length having an L-shaped cross section having a plurality of long length material support mechanisms having a cutting position adjusting / holding body for adjusting / holding the long length material at a predetermined position corresponding to the cutting position of the side of Cutting processing part to obtain the material, and transferred along its length direction The long material having an L-shaped cross-sectional shape is held at a bending fulcrum position where an arc-shaped bending is performed from one side in the width direction of either side of the L-shape, and is supported rotatably by a fixed shaft. A bending fulcrum fixed roller, and a bending fulcrum movable roller rotatably supported by a movable shaft that holds the long material at the bending fulcrum position from the other side in the width direction of the one side of the L-shape. A bending fulcrum movable roller mechanism having a movable member, and a movable member disposed on a front surface portion of the long material in the transfer direction and pressed against one end portion in the width direction of the one side of the long material. A bending action point movable roller rotatably supported by a shaft, and a bending action point movable roller mechanism having a pushing position adjustment / holding body for adjusting / holding the pushing position of the bending action point movable roller to the end. A roll bending mechanism Or 3) In the means described in the above item 2, the bending fulcrum movable roller includes one movable roller and the other movable roller that are mounted on the movable shaft so as to face each other with a space therebetween. A movable roller is combined with a bottomed cylinder that opens to the other movable roller side, and a side that is not a target of cutting by the cutting blade mechanism portion of the long material on the end surface of the movable roller side is viewed from the upper surface side. Or a pressing body that elastically presses the piston body from the bottom side of the cylinder. 4) In the means described in 2 or 3 above, the bending fulcrum fixing roller includes It has a cylindrical outer shape with various diameters, or has a concave groove in a portion of the cylindrical outer portion that holds the long material, and the depth of the concave groove depends on the plate thickness of the long material. The width dimension of the concave groove is equal to the width dimension of the side of the long material that was cut by the cutting blade mechanism, or 5) the above items 2 to 4 In any one of the means described above, the bending action point movable roller mechanism includes a bending action point movable roller support that rotatably supports the bending action point movable roller. 6) In the means according to any one of items 2 to 5, wherein the bending position adjustment roller is driven and held by the pushing position adjusting / holding body when the pushing position is adjusted. The bending action point movable roller mechanism part is bent in an L shape at the end of the long material having the L-shaped cross-sectional shape on which the bending action point movable roller on one side of the L-shape is pressed. Side edge and its A bending direction switching portion that can be selected and set at either end of the opposite end, or 7) in the means according to any one of items 1 to 6, wherein the bending position holding portion is It has a pair of guide rollers for holding the long material having a flat cross-sectional shape from both sides in the plate thickness direction and faces one end of the long material in the width direction facing the guide roller pair. A guide roller pair mechanism having a contact surface that is in contact with the guide roller pair, and a plurality of the guide roller pair mechanism sections spaced apart from each other along the transfer direction of the long material, and the respective guide roller pair mechanism sections. A long material holding portion that is installed so that the abutment surface substantially coincides with the same plane, and a movable mechanism that causes the long material to abut against the abutment surface. And a bending position adjusting / holding body Or 8) In the means according to any one of items 1 to 7, the bending forming portion has one of the forming rollers of each of the plurality of pairs of bending forming rollers as its center of rotation. The end in the width direction of the long material to which the axis has been transferred is substantially orthogonal to the line connecting the length direction of the long material, and is integrated with an interval along the transfer direction of the long material. A roller holding portion that is held between the pair of bending rollers and the roller holding portion that is inserted between the bending rollers of the respective bending forming roller pairs by moving the roller holding portion substantially parallel to the plate thickness direction of the long material. A long material pressing portion that presses the material in the plate thickness direction, and the axial length direction of at least one of the pair of forming rollers of each pair of bending rollers. Long holding position Axial length direction position adjustment / holding part that adjusts / holds according to the plate thickness of the material, and holds one of the bending forming roller pairs facing the other forming roller. And a holding base body that holds the long material pressing portion and holds the roller holding portion so as to be substantially parallel to the plate thickness direction of the long material, or 9) 9. The means according to any one of items 1 to 8, wherein the bend forming roller pair of the bend forming portion has one roller having a cylindrical outer shape with a uniform outer diameter and a uniform outer diameter. A cylindrical part having a cylindrical outer shape, and a cone having an outer surface shape of a right circular truncated cone whose part contacting the cylindrical part is the same as the outer diameter of the cylindrical part and the diameter is closer to the end part Or a circle with a uniform outer diameter larger than the cylindrical part A stepped portion having a columnar outer shape and another roller having an outer shape formed concentrically and continuously, and each of the other rollers has a top of a right cone formed by an outer shape of a right truncated cone shape. Transfer of the long material as the pair of bending rollers having the other roller having a larger angle is made by changing a half angle of the angle or an angle formed between the end surface of the stepped portion and the rotation center axis thereof. 10) In the means according to any one of items 1 to 9, wherein the cutting blade mechanism portion included in the cutting portion is both a circular rotary blade. A blade and a lower cut blade, a press receiving body that is attached to the lower end portion of the rotary shaft of the upper cut blade and supports a portion of a side that is not a target of cutting by the cut blade mechanism portion of the long material from the lower surface side, and an upper side On the bottom side of the cutting blade A piston body having a pressing portion that presses a side that is not a target of cutting by the cutting blade mechanism portion of the long material from the upper surface side at the lower end portion, and is movably combined with a bottomed cylinder formed by mouth. A pressure body that elastically presses the piston body from the bottom side of the cylinder, or 11) the means according to any one of 1 to 10 above, wherein each of the cutting parts has an L shape The long cross-section material holding mechanism holds the portion of the side that is not subject to cutting by the cutting blade mechanism of the long material subjected to L-shaped bending from both sides in the plate thickness direction. A plurality of holding roller pairs having holding rollers, a roller holding portion for holding each holding roller of each holding roller pair integrally, and each roller holding portion for the plate thickness of the long material The plate thickness direction moving mechanism unit that adjusts the positional relationship between the holding rollers that are combined in pairs by moving to the plate, and holding the plate thickness direction moving mechanism unit and moving the plurality of roller holding units A holding substrate body that is freely held and driven / held by the cutting position adjustment / holding body, or 12) a long material having an L-shaped cross-sectional shape is subjected to bending molding to have a constant curvature. A molding apparatus for obtaining an arc-shaped molded body, wherein the long material having an L-shaped cross-sectional shape transferred along its length direction is taken in the width direction of one side of the L-shape. A bending fulcrum fixing roller which is held at a bending fulcrum position where arc-shaped bending is performed from one side and which is rotatably supported by a fixed shaft, and the other side in the width direction of the one side of the L-shape. Hold at the bending fulcrum position from the side. A bending fulcrum movable roller mechanism having a bending fulcrum movable roller supported in a freely rotatable manner, and a width direction of the one side of the long material L-shaped, which is disposed on the front surface in the transport direction of the long material A bending action point movable roller that is pressed against one of the end parts of the bending action point and is rotatably supported by a movable shaft, and a pushing position adjustment that adjusts and holds the pushing position of the bending action point movable roller to the end part. Or a bending action point movable roller mechanism having a holding body, or 13) In the means described in item 12, the bending fulcrum movable rollers are opposed to each other at a distance from the movable shaft. One end of the movable roller and the other movable roller, and the end of the movable roller side are movably combined with a bottomed cylinder that opens to the other movable roller side of the one movable roller. A piston body that presses the side of the long material that is not the target of cutting by the cutting blade mechanism part from the upper surface side, and a pressing body that elastically presses the piston body from the bottom side of the cylinder, Or 14) In the means described in the item 12 or 13, the bending fulcrum fixing roller has a cylindrical outer shape with a uniform diameter, or holds the elongated material having a cylindrical outer shape portion. The groove has a groove that is slightly shallower than the plate thickness of the long material, and the width of the groove is an object to be cut by the cutting blade mechanism of the long material. 15) The means according to any one of items 12 to 14, wherein the bending action point movable roller mechanism unit rotates the bending action point movable roller. Bending point to support freely A movable roller support, and the bending action point movable roller support is driven / held by the pushing position adjusting / holding body when adjusting the pushing position of the bending action point movable roller, or 16) 16. The means according to any one of items 12 to 15, wherein the bending action point movable roller mechanism section has the bending action point on the one side of the L-shape of the long material having an L-shaped cross-sectional shape. A bending direction switching portion that can select and set an end portion to which the movable roller is pressed at either the L-shaped bent end portion or the opposite end portion; or 17 ) In the means according to any one of items 1 to 16, the adjustment amount is adjusted to each of the pushing position adjustment / holding body and / or the bending position adjustment / holding body and the cutting position adjustment / holding body. This is achieved by providing an adjustment amount indicating device for indicating.

In the molding apparatus according to the present invention, the following effects can be obtained by adopting the configuration described in the section for solving the problems.
(1) By means (1) to (3), (5) to (13), (15) and (16) of the means for solving the problems The dimensions of the sheet thickness t, the long side width B, and the short side width C of the molded body having an L-shaped cross-sectional shape that can be manufactured by the configuration are, for example, a sheet thickness t of about 0.3 mm to 1 mm. The side width dimension is about 3 mm to about 10 mm, the short side width dimension is about 1.2 mm to 3 mm, and the bending radius R by roll bending is in the range of about 180 mm to 2000 mm.
In the molding apparatus according to the present invention, a molded body having an L-shaped cross-sectional shape with such a wide range of dimensions can be produced with the same apparatus, so that a wide variety of shapes and dimensions can be obtained from a flat plate material having the same width. It becomes possible to produce a molded body having an L-shaped cross section. Therefore, most of the materials that need to be prepared for the production of molded bodies are those with different plate thicknesses and those that have stepped parts built in. It can be greatly reduced. This makes it possible to greatly improve workability in terms of material acquisition, storage management, and changeover of materials due to material changes. Also, production and maintenance of a wide variety of jigs and tools, and a wide variety of jigs and tools. Since there is basically no change in production, maintenance, or change of jigs and tools, workability can be greatly improved.

Thus, in the molding apparatus according to the present invention, the plate-shaped material is transferred to the bending forming portion while being pressed in the width direction by the movable mechanism portion, and the material is bent by the bending roller pair. By providing a long material pressurizing unit that presses the material in the plate pressure direction, the dimensional accuracy in the width direction of the material when bending the material by a pair of bending rollers is improved over a wide range of material dimensions. Is done. In addition, when an unnecessary portion of one side of the L-shape is cut by the cutting processing unit, the side that is not the object of cutting adjacent to the portion to be cut is pressed almost uniformly on both sides in the plate thickness direction. By supporting with pressure, the posture of the part to be cut is stabilized, and thus the dimensional accuracy of the cutting process at the cutting part is also improved in a wide range of material dimensions. For these reasons, in the molding apparatus according to the present invention, it is possible to improve the dimensional accuracy of the molded body with respect to a wide range of material dimensions. In summary, in the molding apparatus according to the present invention, when an L-shaped molded body is obtained from a flat material, high dimensional accuracy can be obtained and the manufacturing cost can be reduced. Also,
(2) Items (1) to (3), (5) to (13), and (15) to (17) of the means for solving the problems With this configuration, it is possible to further improve the workability related to the production of the molded product while maintaining the effect of the item (1) as it is, thereby further reducing the manufacturing cost of the molded product. Become.
(3) Items (4) and (14) in the section of means for solving the above-mentioned problems in the constituent elements described in the items (1) and (2) of the effect of the present invention Even if the material used for the molded body having an L-shaped cross-sectional shape has a property that a large twisting force is likely to be generated during roll bending of a long material, by adding a configuration requirement according to the item. The bending fulcrum fixing roller is a concave groove [for example, the depth dimension slightly shallower than the plate thickness t of the long material and the value of the width C of the side (short side) that was cut by the cutting blade mechanism unit. With the specified width dimension. In the same manner as in the case of the molding apparatus having the structural requirements described in the above paragraphs (1) and (2), the same width is used. It is possible to produce a molded body having an L-shaped cross-sectional shape with a wide variety of shapes and dimensions from a flat plate material. In addition, since the short sides of the long material are held at both ends in the width direction by the concave grooves, it is possible to reliably prevent the long material from being twisted and stabilize the holding posture of the long material. Therefore, it is possible to maintain the processing dimensional accuracy at the time of roll bending of a long material at a high accuracy value.

  Thus, in addition to the great advantage that a material that easily generates a large torsional force during roll bending of a long material can be used, a material that easily generates a large torsional force when bending a long material is rolled. Considering that the number of bending fulcrum fixing rollers to be prepared is not so large because the ratio used is not so large, the workability in terms of setup change accompanying the change of material is improved, and a wide variety of treatments are made. It is possible to make comprehensive improvements such as reducing the production and maintenance of tools, and reducing the changeover work associated with changes in jigs and tools.

The best mode for carrying out the present invention will be described below in detail with reference to the drawings. In the following description, the molding process of the seal fin of the steam turbine, which is a molded body having the L-shaped cross section shown in FIGS. 14 to 17, and the molded body having the L-shaped cross section of the conventional example. The same parts as those in the apparatus are denoted by the same reference numerals, and the description thereof is omitted.
Embodiment 1 FIG. 1 is an explanatory view showing a molding apparatus according to an example of an embodiment of the present invention, and FIG. 2 is a view showing a bending position holding portion according to FIG. Is a front view, and (b) is a top view. FIG. 3 is a drawing showing a bending part according to FIG. 1, (a) is a front view, (b) is a side view of the main part, and FIG. 4 is a drawing of the main part in FIG. (A) is an EE arrow view, (b) is an FF arrow view, and (c) is a GG arrow view. FIG. 5 is a cross-sectional view of a portion H in FIG. 3B, FIG. 6 is a view showing a cutting portion according to FIG. 1, FIG. 5A is a front view, and FIG. FIGS. 7A and 7B are drawings showing the cutting portion according to FIG. 6, in which FIG. 7A is a top view, and FIG. 7B is a partially broken JJ view in FIG. 8 is a front view showing the roll bending mechanism portion according to FIG. 1, FIG. 9 is a top view of the roll bending mechanism portion according to FIG. 8, and (a) is a case where a workpiece is bent toward the front side of the paper surface of FIG. (B) shows the case where a workpiece is bent to the back side of the paper surface of FIG. FIG. 10 is a side view including a partially broken portion showing a main part of an L-shaped long section material holding portion by a bending fulcrum movable roller and a bending fulcrum fixing roller in the roll bending mechanism portion shown in FIGS.

  1 to 10, reference numeral 1 </ b> A denotes a molding apparatus according to the present invention that includes a bending position holding unit 2, a bending unit 3, a cutting unit 4, and a roll bending mechanism unit 6. In the molding apparatus 1A, the material 9 which is a flat plate-like long material having a width Ws and a thickness t is subjected to L-shaped bending at a necessary portion in the width Ws direction in the bending portion 3. However, the bending position holding unit 2 adjusts the end position in the width Ws direction of the material 9 so that the material 9 is bent at a predetermined portion, and the adjusted end portion in the width Ws direction. The position is maintained and the material 9 is transferred to the bending portion 3. In this case, the bending position holding unit 2 includes a plurality of guide roller pair mechanism units 21, a long material holding unit 24, a movable mechanism unit such as a movable cylinder 26, a plurality of linear motion guide bodies 27, For example, a movable cylinder 28 and a substrate body 29 which are position adjusting / holding bodies are provided.

  The guide roller pair mechanism unit 21 supports a pair of guide rollers 22 and 22 (hereinafter, abbreviated as a guide roller 22 pair) that holds the material 9 from both sides of the plate thickness t, and this guide roller pair 22. A contact surface 23 is formed to face one end 9a of the material 9 in the width Ws direction. The long material holder 24 separates the plurality of guide roller pair mechanism portions 21 along the direction in which the material 9 is transferred, and each guide roller pair so that the contact surfaces 23 substantially coincide with the same plane. A mechanism unit 21 is installed, and a movable cylinder 26 is attached. A contact plate 25 that is in contact with the other end 9 b of the material 9 in the width Ws direction is attached to the movable cylinder 26, and the contact plate 25 is always in contact with the end 9 b of the material 9. To work. The linear motion guide body 27 is mounted on the substrate body 29 and supports the long material holding portion 24 movably in a direction substantially parallel to the width Ws direction of the material 9.

The movable cylinder 28 moves the long material holding portion 24 movably supported by the linear guide body 27, and the end 9 a of the material 9 is bent into the material 9 by the bending portion 3. Is adjusted and held so as to be at a predetermined position corresponding to the position to be applied. In this case, the bending forming unit 3 includes three sets of bending forming roller pairs 31A to 31C, a roller holding unit 36, a long material pressing unit 37, and three sets of axial length direction adjustments. A holding portion 38 and a substrate body 39 which is a holding base body are provided. Each of the three pairs of bending forming rollers 31 </ b> A to 31 </ b> C includes one forming roller 32 having a cylindrical outer shape with a uniform outer diameter, and a forming roller disposed on the downstream side in the transfer direction of the material 9. The other molding rollers 33 </ b> A to 33 </ b> C, which are set so that the bending angle of the material 9 increases, are combined.
Among the molding rollers 33A to 33C, the molding roller 33A and the molding roller 33B have a cylindrical portion 34 having a cylindrical outer shape with a uniform outer diameter, and a portion in contact with the cylindrical portion 34 is a circle. It has an outer shape formed by concentric and continuous conical portions 35A and 35B having an outer surface shape of a right circular truncated cone shape that is the same as the outer diameter of the columnar portion 34 and that is closer to the end portion. . Further, the molding roller 33C has a cylindrical part 34 having a cylindrical outer shape with a uniform outer diameter, and a cylindrical part with a uniform outer diameter whose part in contact with the cylindrical part 34 is larger than the cylindrical part 34. A stepped portion 35C having an outer shape has an outer shape formed concentrically and continuously.

  Each of the conical portions 35A and 35B has a right cone apex angle 2θ formed by a right frustoconical outer shape which is a pressurizing surface 35Aa and 35Ba for pressurizing the material 9 (see FIG. 4B). ], Or the pressure surface 35Ca of the material 9 of the stepped portion 35C is indicated by a one-dot chain line in FIG. 4C. ], And this angle (hereinafter, this angle is referred to as a roller gradient) θ is larger in the bending roller pairs 31A to 31C having the other forming rollers 33A to 33C. With respect to the downstream side. According to an investigation by the inventor, when a molded body having an L-shaped cross-section is produced from the flat plate-shaped material 9 by the bending molding section 3, no abnormality such as wrinkles, cracks or deformation occurs in the molded body. In order to do so, the roller gradients of the molding rollers 33A to 33C are 10 ° to 30 ° for the molding roller 33A, 30 ° to 70 ° for the molding roller 33B, and 70 ° to 95 ° for the molding roller 33C. Is confirmed to be preferable. Therefore, the roller gradients of the molding rollers 33A to 33C are set based on this investigation result.

  The roller holding part 36 is indicated by a one-dot chain line in FIG. 2 (b) as a rotation center axis XX of the other molding rollers 33A to 33C. ], The forming rollers 33A to 33C are moved along the transfer direction of the material 9 so that the end 9a in the width Ws direction of the material 9 to which the material 9 has been transferred is substantially orthogonal to the line connecting the length direction of the material 9. And hold them together at intervals. The long material pressurizing unit 37 is, for example, a movable cylinder, and moves a roller holding unit 36 that is movably held in a direction substantially parallel to the direction of the plate thickness t of the material 9 via a guide body (not shown). The material 9 inserted between the forming rollers of the bending forming roller pairs 31A to 31C is pressed with a substantially constant pressure in the direction of the plate thickness t even when the plate thickness t is changed. In this case, the axial length direction position adjustment / holding portion 38 is attached to the same shaft at the end portion on the side opposite to the substrate 39 of each of the other molding rollers 33A to 33C. When changing the thickness t, the distance between the conical portions 35A and 35B of the other molding rollers 33A to 33C and the pressure surfaces 35Aa to 35Ca of the stepped portion 35C and the end surface 32a of the one molding roller 32 is set. While adjusting according to the changed plate thickness t, it plays the role of holding the adjusted interval length.

  For this purpose, the axial length direction position adjusting / holding portion 38 is a connecting body 381 formed with a female screw that fits with a male screw 331 formed at the end portion of the other molding roller 33A to 33C on the side opposite to the substrate 39. An adjustment knob 382 for rotating the connecting body 381 left and right in combination with the connecting body 381, a spacer 383 for holding the end of the connecting body 381 at the end of the roller shaft, and the adjusted connection A driving pin 384 for preventing the body 381 from rotating and moving in the axial direction is provided. In order to prevent the forming rollers 33A to 33C from moving only in the axial length direction and preventing rotation when adjusting the distance between the pressure surfaces 35Aa to 35Ca and the end surface 32a by the axial length direction position adjusting / holding unit 38. The molding rollers 33 </ b> A to 33 </ b> C are attached to the roller shaft using a parallel key 332. The substrate body 39 holds each one of the molding rollers 32 against the other molding rollers 33A to 33C, holds the long material pressurizing portion 37, and guides the roller holding portion 36 (not shown). The material 9 is held so as to be movable substantially parallel to the direction of the plate thickness t of the material 9.

  In the case of this example, the cutting processing unit 4 includes the cutting blade mechanism unit 4A and the front and rear of the cutting blade mechanism unit 4A with respect to the transfer direction of the material 9 formed into an L-shaped cross-sectional shape by the bending unit 3. Are provided with L-shaped cross-section long material holding mechanism portions 5 and 5 disposed respectively. Note that the material 9 having the width Ws and the thickness t put into the bending position holding unit 2 is subjected to the forming process up to the cutting unit 4 so that the sum of the long side width B and the short side width C is the material 9. When the width Ws is substantially equal to or less than the width Ws, a long material 19 having an L-shaped cross section with a predetermined dimension and shape having a plate thickness t, a long side having a width B, and a short side having a width C is obtained. . Thus, the cutting blade mechanism 4A includes an upper cutting blade 41, a lower cutting blade 43, a press receiving body 44, a piston body 45, and a pressing body 47, and the L-shaped long section material holding mechanism section 5 has a plurality of holdings. The roller pair 51, the roller holding portion 53 that integrally holds the holding rollers 52 of each holding roller pair 51, the movable cylinder 54 that is a plate thickness direction moving mechanism portion, the holding substrate body 55, the cutting position adjustment / holding, and the like. For example, a movable cylinder 56, a linear motion guide body 57, and a substrate body 59 as a holding base body are provided.

  Both the upper cutting blade 41 and the lower cutting blade 43 of the cutting blade mechanism 4A are circular rotary blades, and an L-shaped cross-sectional shape between the two upper cutting blades 41 and the lower cutting blade 43 arranged side by side. By passing the material 9 formed into a predetermined part of the L-shaped material 9 at the overlapping portion of the upper cut blade 41 and the lower cut blade 43 [in this case, an L-shaped cross section It is a part of the side where the short side C (see FIG. 15) of the shape is obtained. ] Is sheared and cut. The presser receiving body 44 is attached to the lower end portion of the rotating shaft of the upper cut blade 41, and is a side not cut by the cut blade mechanism portion 4A of the L-shaped material 9 [in this case, an L-shape. This is the side that becomes the long side B (see FIG. 15) of the cross-sectional shape. ] Is supported from the lower surface side. The upper cut blade 41 is formed with a bottomed cylinder 42 opened to the lower surface side, and a piston body 45 is slidably incorporated in the cylinder 42.

The piston body 45 is a pressing portion (for example, a hook-shaped portion formed at the lower end portion of the piston body 45) that presses a side that is not a target of cutting of the L-shaped material 9 by the cutting blade mechanism portion 4A. ) 46 is provided. In addition, a pressing body (for example, a pressing body that elastically presses a side not cut by the cutting blade mechanism 4 </ b> A of the L-shaped material 9 from the upper surface side through the piston body 45 and the pressing portion 46 at the bottom of the cylinder 42. A plurality of coil springs) 47. Therefore, the L-shaped material 9 whose predetermined portion is cut by the cutting blade mechanism portion 4A is, according to the present invention, a side that is not a target of cutting by the cutting blade mechanism portion 4A at a portion that is very close to the portion to be cut. Is supported from both the upper and lower surfaces by the pressing portion 46 elastically pressed by the pressing body 47 and the pressing receiving body 44.
In addition, the site | part cut from the L-shaped raw material 9 with the cutting blade mechanism part 4A and is no longer used as a long material having an L-shaped cross-sectional shape is processed as, for example, a cut end material 19a. Each of the holding roller pairs 51 of the long L-shaped material holding mechanism section 5 sandwiches the sides of the L-shaped material 9 that are not to be cut by the cutting blade mechanism section 4A from both sides in the plate thickness t direction. The holding rollers 52 and 52 are held, and the holding rollers 52 of the plurality of holding roller pairs 51 are held integrally by a roller holding portion 53. The two sets of roller holding portions 53 holding a plurality of holding rollers 52 can hold the holding substrate body 55 by sandwiching sides that are not the target of cutting the L-shaped material 9 from both sides in the thickness t direction. Are supported so as to be movable in a direction substantially parallel to the direction of the plate thickness t of the material 9 through a guide body (not shown). Each movable cylinder 54 is mounted on the holding substrate body 55 in combination with each roller holding portion 53, and the roller holding portion 53 is moved in a direction substantially parallel to the direction of the plate thickness t of the material 9. The holding rollers 52 and 52 hold the sides that are not the target of cutting the L-shaped material 9 from both sides.

Since the L-shaped material 9 is held in this way by the holding rollers 52, 52, the holding state is kept stable even when the plate thickness t is changed. The substrate body 59 is provided with a movable cylinder 56 and linear motion guide bodies 57 and 57, and the holding substrate body 55 is not subject to cutting of the L-shaped material 9 via the linear motion guide bodies 57 and 57. It is supported so as to be movable in a direction substantially parallel to the thickness t direction. The holding substrate body 55 is moved and adjusted / held by the movable cylinder 56 in a direction substantially parallel to the plate thickness t direction of the side that is not the object of cutting of the L-shaped material 9, whereby the L-shaped The vertical position of the material 9 is adjusted and held so that the part to be cut by the cutting blade mechanism 4A on the side to be cut by the cutting blade mechanism 4A is a predetermined position.
In this case, the roll bending mechanism section 6 includes a bending fulcrum fixing roller 6A, a bending fulcrum movable roller mechanism section 6B, a bending action point movable roller mechanism section 7, and a substrate body 69 as a holding base body. It has. The bending fulcrum fixed roller 6A has a cylindrical outer shape with a uniform diameter, and cooperates with the bending fulcrum movable roller 62 provided in the bending fulcrum movable roller mechanism 6B, and has a predetermined dimension transferred along its length direction. -Arc-shaped bending in the width direction of one of the L-shaped sides of the long material 19 having an L-shaped cross section (for example, the side that was not subject to shearing by the cutting blade mechanism 4A) The other side (for example, the side that was the target of shearing in the cutting blade mechanism 4A) of the long material 19 from both sides in the plate thickness direction at the bending fulcrum position where It plays a role of holding and is rotatably supported by a fixed shaft 61 mounted on the substrate body 69. The bending fulcrum movable roller mechanism 6B cooperates with the bending fulcrum fixing roller 6A, and the bending fulcrum fixing roller 6A holds the long material 19 in the thickness direction of the other side of the L-shape as described above. A bending fulcrum movable roller 62 that plays a role of holding from the non-rotating side, a movable cylinder 65 that is a pressing position holding body, and a movable shaft 64 are attached, and the bending fulcrum movable roller 62 can be rotated by the movable shaft 64. A support body 63 that is supported and attached to the tip of the movable cylinder 65 and a substrate body 66 that is a holding base body are provided.

  The movable cylinder 65 is mounted on the substrate body 66 and presses the bending fulcrum movable roller 62 to the bending fulcrum fixed roller 6A side via the support 63 to hold the pressing position. The bending action point movable roller mechanism unit 7 is provided with a bending action point movable roller 71, a servomotor 74 having a push-motion position adjusting / holding body, for example, a direct-acting output shaft, and a movable shaft 72. A bending action point movable roller 71 is rotatably supported by a shaft 72, and a support body 73 mounted on an output shaft of a servo motor 74 and a substrate body 75 as a holding base body are provided. The servo motor 74 is mounted on the substrate body 75 and moves the bending action point movable roller 71 back and forth via the support body 73. The forward / backward movement distance of the bending action point movable roller 71 is the pushing position. The long material 19 held by the bending fulcrum fixing roller 6A and the bending fulcrum movable roller 62 from both sides in the plate thickness direction of the other side of the L-shaped is the bending action point movable roller 71 at the portion coming out of the holding position. By pressing one side of the L shape in the width direction, the length direction is formed into an arc shape.

  Here, the details of the long material holding portion by the bending fulcrum movable roller 62 and the bending fulcrum fixing roller 6A described above will be further described with reference to FIG. 10, the bending fulcrum movable roller 62 includes an upper movable roller 621, a lower movable roller 622, a piston body 624, and a pressing body 625. The upper movable roller 621 and the lower movable roller 622 are mounted on the movable shaft 64 so as to face each other with a mutual spacing length K therebetween. The upper movable roller 621 is formed with a bottomed cylinder 623 that opens toward the lower movable roller 622. A piston body 624 is slidably incorporated in the cylinder 623. Further, a pressing body (for example, a plurality of coil springs) 625 is provided at the bottom of the cylinder 623 and elastically supports one side of the long material 19 from the upper surface side in the plate thickness direction via the piston body 624. It works to press it. In addition, the value of the mutual interval length K is larger than the plate thickness t of the long material 19 and the width of the other L-shaped side (for example, short side) of the long material 19 handled by the forming apparatus 1A. The dimension is set smaller than the minimum value Cmin. Further, the outer dimensions of the upper movable roller 621 and the lower movable roller 622 are such that the long material 19 handled by the molding apparatus 1A is in contact with the movable shaft 64 on one side (for example, the long side) of the L-shape. It is set so that it can be held without any problems.

  Therefore, in the long material holding portion formed by the bending fulcrum movable roller 62 and the bending fulcrum fixing roller 6A, one side of the long material 19 having the L-shaped cross section is elastically formed by the pressing body 625 in the present invention. The lower end surface of the pressed piston body 624 and the side surface of the lower movable roller 622 are held while being pressed from both sides in the plate thickness direction. In a state where one side of the long material 19 is held while being pressed in this way, the bending fulcrum movable roller 62 is pressed against the bending fulcrum fixing roller 6A side (the right side in the figure) by the movable cylinder 65 via the support 63. As a result, the left end surface in the plate thickness direction of the other side of the long material 19 having an L-shaped cross section is pressed against the bending fulcrum fixing roller 6A side by the outer diameter surface of the upper movable roller 621 of the bending fulcrum movable roller 62. The position of the long material 19 in the pressing direction is maintained in a state where the right side surface of the other side of the long material 19 is in contact with the outer diameter surface of the bending fulcrum fixing roller 6A. Although a substrate body 66 is provided as a holding base body on the bending fulcrum movable roller 62 side, the illustration thereof is omitted in FIG.

  When the roll bending process is performed on the long material 19 having an L-shaped cross section made of a thin plate by applying the long material holding portion having the L-shaped cross section shown in FIG. 10, the roll bending by the bending action point movable roller 71 is performed at the bending fulcrum position. As a holding force corresponding to this force, a large pressing force from the bending fulcrum movable roller 62 is applied to the long material 19, and this pressing force is in the thickness direction of the other side of the L-shaped long material 19. It will be received at the end face on the left side of the figure. If the bending fulcrum movable roller 62 has a rigid groove portion that does not include the pressing body 625, the cylinder 623, etc., the L-shaped one side of the long material 19 in the plate thickness direction is assumed. Since both sides are in a state where there is a gap between the wall portion of this groove portion, be prepared to leave one side of the long material 19 in the L-shaped cross-section long material holding portion free. Will have to. One side of this free state is a long material because it is twisted to escape in a direction deviating from the direction in which the large pressing force is applied when the large pressing force is applied at the time of roll bending. The holding posture of 19 is not stabilized, and as a result, there may occur a phenomenon that the processing dimensional accuracy at the time of roll bending of the long material 19 is lowered.

On the other hand, the bending fulcrum movable roller 62 of the molding apparatus 1A according to the present invention includes the pressing body 625, the cylinder 623, and the like, and the long material 19 has one side on the upper side movable roller 621 and the lower side movable roller 622. Therefore, when the roll bending process is performed while feeding the long material 19 having the L-shaped cross section, the thickness t of the long material 19 handled by the forming apparatus 1A is held. In this range, the holding posture of the long material 19 can be stabilized regardless of the plate thickness value of the long material 19, and high processing dimensional accuracy can be obtained when the long material 19 is rolled.
In the molding apparatus 1A, the pushing position is adjusted / changed by the servo motor 74, whereby an arc-shaped curvature with respect to the length direction of the long material 19, that is, an arc-shaped bending radius R (see FIG. 14). Can be changed and set at will. The substrate body 69 is mounted with the fixed shaft 61 and the substrate body 66 of the bending fulcrum movable roller mechanism 6B in the vicinity of the bending fulcrum position, and in the bending direction at a position corresponding to the front surface portion with respect to the transfer direction of the long material 19 from the bending fulcrum position. A rotation shaft 68 serving as a switching unit is mounted. The bending action point movable roller mechanism unit 7 is configured to bend around the rotation shaft 68 as a center of rotation as schematically shown by an arrow 67 in FIG. 9 by rotatably mounting the substrate body 75 on the rotation shaft 68. The end in the width direction of the L-shaped side of the long material 19 to which the action point movable roller 71 is pressed is either one of the end on the side bent in the L-shape and the end on the opposite side. Can be selected and set in the section.

Accordingly, in this molding apparatus 1A, when the case of a seal fin of a steam turbine is taken as an example, the seal fin 92 illustrated in FIG. 14A is the seal fin 91 illustrated in FIG. 14B. Also, it can be manufactured as a molded body 11 which is a molded body having an L-shaped cross-sectional shape and formed in an arc shape with a constant curvature. Whether the arc-shaped shape of the molded body 11 is semicircular or full-circular can be arbitrarily selected by setting a position at which the molded body 11 is cut and cut off. Also in the case of the all-round molded body 11, one opening (for example, the opening 93 according to FIG. 17) necessary for the all-round seal fin for the rotating portion is formed at the time of roll bending. This is the same as in the case of the prior art.
Since the molding apparatus 1A according to an example of the embodiment of the present invention shown in FIGS. 1 to 10 has the above-described configuration, a material 9 that is a flat plate-like long material having a width Ws and a thickness t is used. When the sum of the width B of the long side and the width C of the short side is equal to or less than the width Ws of the material 9, L of a predetermined size and shape with the plate thickness t, the long side having the width B and the short side having the width C. An all-round or semi-circular shaped body 11 having a cross-sectional shape and a required bending radius R can be manufactured. The dimension of the long side width B or the short side width C of the molded body 11 can be arbitrarily set as described above by the adjustment / holding function of the bending position adjustment / holding body 28 such as the movable cylinder of the bending position holding section 2. Can be set to a value. The material 9 to be transferred with the position of the end 9a set so as to be a bending position corresponding to the width B of the long side or the width C of the short side in the bending position holding part 2 is L-shaped in the bending part 3. Bending is performed.

  Further, when the sum of the width B of the long side and the width C of the short side is less than the width Ws of the material 9, from the material 9 which is a molded body having an L-shaped cross-sectional shape obtained in the bending molding part 3, In the cutting portion 4, for example, a portion longer than the width C of the short side is cut, and a long material 19 having an L-shaped cross section having a predetermined dimension and shape having a plate thickness t, a long side having a width B, and a short side having a width C. Will be obtained. By subjecting this long material 19 to arc-shaped bending with the roll bending mechanism 6, the molded body 11 having the above contents is manufactured. In the case of producing a molded body having an L-shaped cross section having a stepped portion 94 on one side, the forming process is performed by using the material 9 in which the stepped portion 94 is already formed at the material stage. It can be manufactured by the apparatus 1A. Such materials already exist on the market. Moreover, when manufacturing the molded object of the L-shaped cross-sectional shape which has the step part 94 using the raw material 9 in which the step part 94 was built, naturally, it is cut object in the cutting process part 4 Need not include the stepped portion 94.

  Thus, according to the examination results of the inventors, the dimension range of the plate thickness t, the long side width B, and the short side width C of the molded body having an L-shaped cross-sectional shape that can be manufactured by the forming apparatus 1A is, for example, The plate thickness t is about 0.3 mm to 1 mm, the long side width dimension is about 3 mm to 10 mm, and the short side width dimension is about 1.2 mm to 3 mm. Moreover, about the bending radius R by a roll bending process, it is the range of about 180 mm-2000 mm. In the molding apparatus 1A according to the present invention, a molded body having an L-shaped cross-sectional shape with such a wide range of dimensions can be manufactured with the same apparatus, so that various shapes and dimensions can be made from the material 9 having the same width Ws. A molded body having an L-shaped cross section can be manufactured. Therefore, most of the materials 9 that need to be prepared are those having different thicknesses t and those that have a stepped portion 94 built in, and the types of materials 9 that need to be prepared are greatly reduced compared to the conventional materials. it can. As a result, the workability is greatly improved in terms of the acquisition and storage management of the material 9 and the setup change accompanying the change of the material 9. In addition, since there is no need to manufacture and maintain a wide variety of jigs and tools, there is basically no setup change associated with the production and maintenance of a wide variety of jigs and tools, and changes to the tools. However, workability etc. are greatly improved.

By the way, in the bending forming method by the structural method of the bending forming portion 3 of the forming apparatus 1A, the material 9 is squeezed by the rollers of the three pairs of bending forming rollers 31A to 31C, and the shape of the rollers is changed. They are deformed together and bent into an L shape. However, in the case of the bending forming process using the roll processing method, the bending position changes depending on how the material 9 is sandwiched between the rollers, so that the bending position is not stable. In the molding apparatus 1A, the end 9b is pressed by the contact plate 25 pressed by the movable mechanism 26 such as a movable cylinder, so that the material 9 is transferred while the end 9a is being moved along the contact surface 23. Since the material 9 is stably held between the rollers, and the bending position of the material 9 is stabilized, the dimension of the long side width B or the short side width C of the molded body 11 can be obtained with high dimensional accuracy. it can.
Further, in the bending method using the structural method of the bending part 3, the material 9 needs to be in a state of receiving a certain pressure in the plate thickness direction, and the width of the plate thickness t desired to be used for the material 9 is wide. In some cases, even if the plate thickness t changes, the pressure that the material 9 receives in the plate thickness direction needs to be constant. On the other hand, in the forming apparatus 1A, a long material pressing portion 37 such as a movable cylinder is provided in the bending forming portion 3, and the material 9 is provided in the direction of the plate thickness t via the other forming rollers 33A to 33C. By applying a certain pressure, even if the plate thickness t of the material 9 has a width, a stable bending process can be performed, and with high dimensional accuracy over a wide range of plate thickness t. Obtainable.

  Further, a portion longer than a predetermined dimension of the long side width B or the short side width C by the cutting blade mechanism portion 4A of the cutting processing portion 4 is sheared at a portion where the upper cutting blade 41 and the lower cutting blade 43 overlap each other. In the cutting method of cutting, if the L-shaped material 9 is inserted into the cutting blade mechanism portion 4A in an inclined state, it is cut as it is, so the width B or the short side of the long side after cutting There is a possibility that the value of the width C of the above will not be stable. On the other hand, the molding apparatus 1A includes a press receiving body 44, a piston body 45, and a pressing body 47 in association with the upper cut blade 41, so that the L-shaped material 9 is very close to the portion to be cut. An L-shaped material is supported by supporting the side that is not the object of cutting by the cutting blade mechanism 4A at the site from both the upper and lower sides by the pressing portion 46 elastically pressed by the pressing body 47 and the pressing receiving body 44. 9 is inserted into the cutting blade mechanism 4A while maintaining the correct posture.

Thereby, the processing precision of the dimension of the width B of the long side or the width C of the short side in the cutting process in the cutting blade mechanism portion 4A can be increased. In addition, by using the pressing body 47, the pressing force that the pressing portion 46 presses the material 9 can be maintained at substantially the same value in a wide range of the plate thickness t. Therefore, this high processing accuracy can be obtained in the range of the wide plate thickness t. Is done. As described above, the molding apparatus 1A according to the present invention achieves a significant improvement in the management and workability of the material 9 compared to the case of the prior art, and the processing accuracy of the dimensions is also higher than that of the prior art. Have been able to improve.
In addition, since the long material 19 of L-shaped cross section is obtained from the plate-shaped long raw material 9 in the bending position holding part 2, the bending forming part 3 and the cutting processing part 4 of the forming apparatus 1A, The forming apparatus 1A can be used as it is, or a dedicated forming apparatus can be used to form the forming material 19 for manufacturing the long material 19 having an L-shaped cross section from the flat plate-like long material 9. In addition, since the roll bending mechanism portion 6 of the molding apparatus 1A is obtained from the long material 19 having an L-shaped cross section, the molded body 11 that is roll-bent in a circular shape with a constant curvature is obtained. The molding apparatus 1A is used as it is or as a dedicated molding apparatus, which is a molding apparatus for obtaining a molded body 11 that is rolled into an arc shape with a constant curvature from a long material 19 having an L-shaped cross section. be able to.

In the above description, the metal material used for the long material 9 has been an alloy steel material of a heat-resistant steel (such as stainless steel), but is not limited to this. For example, an appropriate type of steel material or A metal material such as an aluminum material may be used.
[Embodiment 2] FIG. 11 is an explanatory view showing a molding apparatus according to a different example of the embodiment of the present invention. In the following description, the same parts as those of the molding apparatus 1A according to the present invention shown in FIGS. Also, in the drawings used for the following description, only representative symbols are shown for the symbols given in FIGS.
In FIG. 11, reference numeral 1 denotes a thin plate material feed reel mechanism 12, a manual cutting mechanism (1) 13, a dimension measuring instrument (1) 14, and a manual to the forming apparatus 1A according to the present invention shown in FIGS. Cutting mechanism (2) 15, dimension measuring instrument (2) 16, automatic cutting mechanism 17, finished product cradle 18, operation panel 8, position indicator (1) 81, dimension indicator (1) 82, position indicator ( 2) A molding apparatus according to the present invention, further comprising 83, a dimension indicator (2) 84, and a position indicator (3) 85. In the following description, for convenience of explanation, the molding apparatus 1 is described as being a molding apparatus specialized for producing seal fins for steam turbines such as the seal fins 91 and 92. The molding processing apparatus 1 is a molding processing apparatus that is automated based on the molding processing apparatus 1A described in the first embodiment. The molding processing apparatus 1A receives commands and operations for automatic operation of the entire apparatus. A control panel 8 is provided, and a group of related devices necessary for automatic operation / operation performed by the operation panel 8 is described below.

  The operation panel 8 can set the number of seal fins to be manufactured, the cutting length, and the like. The control function for cutting at an arbitrary length and the automatic to be able to manufacture seal fins to be manufactured at arbitrary setting values. A control function and an automatic operation function of the molding apparatus 1 are provided. The thin plate material feed reel mechanism 12 sets a material 9 which is a flat plate-like long material having a width Ws and a plate thickness t as a hoop material. The manual cutting mechanism (1) 13 is, for example, a cutter device that cuts the material 9 at a portion coming out from the bending position holding unit 2 when the material 9 is replaced. The manual cutting mechanism (2) 15 is, for example, a cutter device that cuts the material 9 at a portion coming out from the bending portion 3 when the setup is changed. In this case, the dimension measuring device (1) 14 is an L-shape obtained by molding up to the bending portion 3 of the seal fin (seal fins 91, 92, etc.) being manufactured by the molding apparatus 1. For example, a non-contact measuring type automatic dimension measuring device such as a laser type that automatically measures the actual value of the width B of the long side of the cross section and outputs the measurement result.

In this case, the dimension measuring device (2) 16 is an L-shape obtained by the molding process up to the cutting part 4 of the seal fin (seal fins 91, 92, etc.) being manufactured by the molding apparatus 1. For example, an automatic dimension measuring instrument having the same contents as the dimension measuring instrument (1) 14 that automatically measures the actual value of the width C of the short side of the cross section and outputs the measurement result. The automatic cutting mechanism 17 is, for example, a nipper-shaped cutting tool that can be automatically operated with an air cylinder that is integrally attached, and when the forming process up to the roll bending mechanism section 6 is completed at a predetermined cutting position. When the obtained molded body 11 moves, the air cylinder is automatically operated to cut off the molded body 11 at a predetermined position.
The finished product cradle 18 is a cradle for receiving the molded body 11 completed by being cut by the automatic cutting mechanism 17 and transferring it to a place where the next process is performed. The position indicator (1) 81 is a position command related to the adjustment / holding operation of the position at which the L-shaped bending process is performed on the material 9 performed by, for example, the movable cylinder 28 which is a bending position adjusting / holding body in the bending position holding unit 2. Is a position indicator that outputs and displays this. The dimension indicator (1) 82 is a dimension indicator that displays the measurement result obtained by the dimension measuring instrument (1). The position indicator (2) 83 adjusts and holds the position at which the cutting process is performed by the cutting blade mechanism 4A of the L-shaped material 9 that is performed by, for example, the movable cylinder 56 that is a cutting position adjusting and holding body in the cutting unit 4. It is a position indicator that sets and outputs a position command related to operation.

The dimension indicator (2) 84 is a dimension indicator that displays the measurement result obtained by the dimension measuring instrument (2) 16. The position indicator (3) 85 is a movable bending point movable by a servo motor 74 having, for example, a direct-acting output shaft, which is a pressing position adjusting / holding body in the bending point movable roller mechanism unit 7 of the roll bending mechanism unit 6. It is a position indicator that sets and outputs a position command related to the adjustment / holding operation of the pushing position of the roller 71 and outputs it.
The outline of the operation procedure of the molding apparatus 1 is as follows. First, the material 9 set in the thin plate material feed reel mechanism 12 is inserted into the bending molding part 3 in a state where the L bending position is determined by the bending position holding part 2, and subjected to L-shaped bending molding, A material 9 having an L-shaped cross section set so that one side has a width B of an L-shaped long side is obtained. At this time, adjustment of the L bending position by the bending position holding unit 2 is performed by the position indicator (1) 81. The measurement of the actual value of the width B of the long side of the L-shaped cross section after the L-shaped bending performed by the bending unit 3 is performed by the dimension measuring instrument (1) 14, and the measurement result is measured by the dimension indicator (1 ) 82. Next, the material 9 having an L-shaped cross section guided by the L-shaped cross-section long material holding mechanism portion 5 of the cutting portion 4 is cut into an L-shaped short side by the cutting blade mechanism portion 4A of the cutting portion 4. A long material 19 having an L-shaped cross section having a predetermined size and shape with a long side having a width B and a short side having a width C is obtained. At this time, the position indicator (2) 83 sets and adjusts the cutting position of the side that becomes the L-shaped short side by the L-shaped cross-section long material holding mechanism 5. Moreover, the measurement of the actual value of the short side width C applied by the cutting unit 4 is performed by the dimension measuring device (2) 16, and the measurement result is displayed on the dimension display (2) 84. Further, the molded body 11 is completed by subjecting the long material 19 to roll bending with the roll bending mechanism 6 as an arbitrary dimension, and the molded body 11 is separated by the automatic cutting mechanism 17 to be a finished product. Become. At this time, the arc-shaped curvature (bending radius R) at the time of roll bending applied to the long material 19 is set and adjusted by the position indicator (3) 85.

Since the molding apparatus 1 according to a different example of the embodiment of the present invention shown in FIG. 11 has the above-described configuration, the molded body 11 obtained by the molding apparatus 1 is basically the same as the molded body 11 manufactured by the molding apparatus 1A. Are identical. Therefore, the dimension range of the molded body 11 that can be manufactured by the molding apparatus 1, the range of materials used, the processing accuracy of the dimensions of each part, the material 9 that requires preparation, the jigs and tools that require preparation, and the bending position of the molding apparatus 1 The holding part 2, the bending part 3 and the cutting part 4 are left as the molding apparatus 1 or a dedicated molding apparatus, and the long material 19 having an L-shaped cross section is formed from the plate-like long material 9. The length of the L-shaped cross section can be made as a molding processing apparatus for manufacturing, or the roll bending mechanism 6 of the molding processing apparatus 1 is left as the molding processing apparatus 1 or a dedicated molding processing apparatus. Regarding the fact that the molding apparatus 1 can be used to obtain a molded body 11 that is rolled into a circular arc shape with a certain curvature from the scale member 19, the molding apparatus 1 can be compared with the prior art. With device 1A equivalent features. Thus, since the molding apparatus 1 is configured as an automatic molding apparatus, the workability related to the production of the molded body 11 is compared with the molding apparatus 1A as well as the conventional technique. However, it can be greatly improved.
[Embodiment 3] In the forming apparatus 1, 1A according to the present invention, the above-mentioned preferable actions and effects can be obtained with respect to the roll bending of the long material 19 having an L-shaped cross section. As a result, the occurrence of an undesirable phenomenon as described below was found. That is, depending on the properties of the material 9, when the large pressing force from the bending fulcrum movable roller 62 is applied to the long material 19 during the roll bending process of the long material 19, the long material 19 is largely twisted. For this reason, the pressing force by the pressing body 625 cannot suppress the occurrence of twisting due to this large twisting force. As a result, when the L-shaped long section material 19 is rolled, This is a problem that the processing dimensional accuracy of the long L-shaped cross-section material 19 decreases, such as the shape of the L-shaped cross section deforming. A molding apparatus for coping with this is a molding apparatus according to a further different example of the embodiment of the present invention described below. The only difference between the forming apparatus 1 and 1A in the forming apparatus according to a further different example of the embodiment of the present invention is the roll bending mechanism. Therefore, the description of the molding apparatus according to still another example of the embodiment of the present invention will be given only for the roll bending mechanism. In the following description, the same reference numerals are given to the same parts as those of the molding apparatus 1A having the L-shaped cross section according to the present invention shown in FIGS. 1 to 10, and the description thereof is omitted.

FIG. 12 is a top view of a roll bending mechanism portion of a molding apparatus according to still another example of the embodiment of the present invention. FIG. 12 (a) shows a case where a workpiece is bent toward the front side of the paper surface of FIG. ) Shows the case where the workpiece is bent to the back side of the paper surface of FIG. FIG. 13 is a side view including a partially broken portion showing the main part of the L-shaped long section material holding portion by the bending fulcrum movable roller and the bending fulcrum fixing roller in the roll bending mechanism portion shown in FIG.
12 and 13, 6C uses a bending fulcrum fixing roller 6D instead of the bending fulcrum fixing roller 6A for the roll bending mechanism 6 of the molding apparatus according to the present invention shown in FIGS. It is the roll bending mechanism part made into. Similar to the bending fulcrum fixing roller 6A, the bending fulcrum fixing roller 6D cooperates with the bending fulcrum movable roller 62 provided in the bending fulcrum movable roller mechanism 6B, and has a predetermined size and shape transferred along the length direction thereof. Either one of the L-shaped sides of the long material 19 having an L-shaped cross section (for example, the side that was not the target of shearing by the cutting blade mechanism portion 4A, which is the L-shaped long side). At the bending fulcrum position where the arc-shaped bending is performed in the width direction, the other side of the L-shaped long material 19 (for example, the side that was the target of shearing in the cutting blade mechanism portion 4A, L-shaped short side) is held from both sides in the plate thickness direction, but has a concave groove 61D in the portion for holding the long material 19, the bending fulcrum fixing roller 6A and It is different when compared.

  The depth of the concave groove 61D is slightly shallower than the plate thickness t value of the long material 19, and the width dimension is equivalent to the width C of the short side of the L-shaped long material 19. Then, the other side of the long material 19 held by the bending fulcrum fixing roller 6D is transferred in a state of being fitted in the concave groove 61D. Since the roll bending mechanism 6C of the roll bending mechanism of the forming apparatus according to the present invention has such a configuration, a large pressing force from the bending fulcrum movable roller 62 during the roll bending of the long material 19 is long. 19, even if a large twisting force is generated in the long material 19, both ends of the long side of the long material 19 are held by the concave grooves 61 </ b> D. 19 can be prevented from being twisted. Therefore, even in the case of the long material 19 using a material that easily generates a large twisting force, the holding posture of the long material 19 can be stabilized, and high processing is performed when the long material 19 is rolled. Dimensional accuracy can be obtained.

  Since the molding apparatus according to a further different example of the embodiment of the present invention having the roll bending mechanism portion 6C shown in FIG. 12 and FIG. If the sum of the width B of the long side and the width C of the short side is equal to or less than the width Ws of the material 9 from the material 9 which is a plate-like long material, the long side with the thickness t However, there is no change in that a long material 19 having an L-shaped cross-sectional shape with a predetermined dimension and shape with a width B and a short side C can be obtained. Further, in the case of producing a full-circle or semi-circular shaped body 11 having a required bending radius R from the long material 19, only the bending fulcrum fixing roller 6D is made of the long material 19, for example, the plate thickness. This can be done by replacing it with one having a groove 61D of a size corresponding to the value of t, the width C of the short side. In addition, the content of a countermeasure when manufacturing the L-shaped cross-section molded body having the stepped portion 94 on one side is exactly the same as in the case of the molding apparatuses 1 and 1A.

  That is, the forming apparatus according to a further different example of the embodiment of the present invention having the roll bending mechanism portion 6C is a case where the material 9 that easily generates a large twisting force during the roll bending process of the long material 19 is used. However, the bending fulcrum fixing roller 6D is formed by the same apparatus except that the bending fulcrum fixing roller 6D is replaced with one having a groove 61D having dimensions corresponding to the thickness t of the long material 19 and the width C of the short side. A long molded body having an L-shaped cross-sectional shape in a wide range similar to that of the processing apparatuses 1 and 1A can be manufactured from the material 9 having the same width Ws. Thus, in addition to the great advantage that it is possible to employ the material 9 that is likely to generate a large twisting force when the long material 19 is rolled, a large twisting force is generated when the long material 19 is bent. Considering that the number of bending fulcrum fixing rollers 6D to be prepared is not so large because the ratio of the easy material 9 used is not so large, the workability in terms of the setup change accompanying the change of the material 9 is improved. Improvement, production of a wide variety of jigs and tools, reduction of maintenance and management, reduction of setup change work associated with changes in jigs and tools, etc. are comprehensively improved compared to the conventional example.

It is explanatory drawing which shows the shaping | molding processing apparatus by an example of embodiment of this invention. FIG. 2A is a front view and FIG. 2B is a top view of the bending position holding unit according to FIG. 1 together with related devices. It is drawing which shows the bending molding part by FIG. 1, (a) is a front view, (b) is a side view of the principal part. 3A is a drawing of the main part in FIG. 3A, in which FIG. 3A is a view taken along the line EE, FIG. 3B is a view taken along the line FF, and FIG. It is sectional drawing of the H section in FIG.3 (b). It is drawing which shows the cutting process part by FIG. 1, (a) is a front view, (b) is a side view. 6A and 6B are diagrams showing a cutting portion according to FIG. 6, in which FIG. 6A is a top view and FIG. 6B is a partially broken view taken along line JJ in FIG. It is a front view which shows the roll bending mechanism part by FIG. FIG. 9A is a top view of the roll bending mechanism unit according to FIG. 8, in which FIG. 8A shows a case where the workpiece is bent toward the front side of the paper of FIG. 1, and FIG. Show the case. FIG. 10 is a side view including a partially broken portion showing an essential part of an L-shaped long section material holding portion by a bending fulcrum movable roller and a bending fulcrum fixed roller in the roll bending mechanism portion according to FIGS. 8 and 9. It is explanatory drawing which shows the shaping | molding apparatus by the example from which this Embodiment differs. It is a top view of the roll bending mechanism part of the shaping | molding processing apparatus by the further different example of embodiment of this invention, (a) shows the case where a process target is bent to the near side of the paper surface of FIG. 1, (b) is a figure. The case where a process target object is bent in the back | inner side of the paper surface of 1 is shown. FIG. 13 is a side view including a partially broken portion showing a main part of an L-shaped long section material holding portion by a bending fulcrum movable roller and a bending fulcrum fixed roller in the roll bending mechanism portion shown in FIG. 12. It is a front view which shows the principal part of the seal fin of a steam turbine, (a) shows the object for rotating parts, (b) shows the object for stationary parts. 14A and 14B are cross-sectional views of the seal fin according to FIG. 14, in which FIG. 14A shows a case of a normal type seal fin, and FIG. 14B shows a case of a stepped seal fin. FIGS. 14A and 14B are explanatory views for explaining a conventional arc-shaped forming method of the seal fin according to FIGS. 14A, 15B, and 15A are front views, and FIG. 16B is a top view in FIG. FIGS. 14 and 15 are explanatory views for explaining a conventional molding method for processing the cross section of the seal fin into an L shape, wherein (a) is a top view and (b) is in FIG. 17 (a). It is sectional drawing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Molding apparatus 19 L-shaped long material 2 Bending position holding part 3 Bending molding part 4 Cutting process part 6 Roll bending mechanism part 8 Operation panel 9 Material

Claims (17)

A forming apparatus for obtaining a long material having an L-shaped cross-sectional shape by subjecting a long material having a flat cross-sectional shape to a bending process and the like,
A bending position holding section having a bending position adjusting / holding body for adjusting / holding the end position in the width direction of the long material at a predetermined position corresponding to a position where the long material is subjected to L-shaped bending; A bending portion that has a plurality of pairs of bending rollers and bends a long material that has been transferred through the bending position holding portion at a predetermined position in the width direction to perform L-shaped bending, and A cutting blade mechanism section that cuts the width of one side of the L-shape obtained by bending at the bending section of the long material at a predetermined position, and the transfer of the long material A surface including a side to be cut by the cutting blade mechanism portion of the long material, which is arranged in front and rear of the cutting blade mechanism portion with respect to the direction and is subjected to L-shaped bending at the bending portion. The object of this cutting And a cutting portion having a plurality of long material support mechanisms having a cutting position adjustment / holding body for adjusting / holding the long material at a predetermined position corresponding to a cutting position of a side. apparatus. A long material having an L-shaped cross-sectional shape is obtained by subjecting a long material having a flat cross-sectional shape to a bending process, and then bending the long material having an L-shaped cross-sectional shape. A molding apparatus that obtains an arc-shaped molded body having a constant curvature,
A bending position holding section having a bending position adjusting / holding body for adjusting / holding the end position in the width direction of the long material at a predetermined position corresponding to a position where the long material is subjected to L-shaped bending; A bending portion that has a plurality of pairs of bending rollers and bends a long material that has been transferred through the bending position holding portion at a predetermined position in the width direction to perform L-shaped bending, and A cutting blade mechanism section that cuts the width of one side of the L-shape obtained by bending at the bending section of the long material at a predetermined position, and the transfer of the long material A surface including a side to be cut by the cutting blade mechanism portion of the long material, which is arranged in front and rear of the cutting blade mechanism portion with respect to the direction and is subjected to L-shaped bending at the bending portion. The object of this cutting A long material having a plurality of long material support mechanisms having a cutting position adjusting / holding body for adjusting / holding the long material at a predetermined position corresponding to a cutting position of a side and having an L-shaped cross-sectional shape And bending the long material having an L-shaped cross-sectional shape transferred along its length direction from one side in the width direction of either side of the L-shape. A bending fulcrum fixing roller which is held rotatably at a bending fulcrum position where molding is performed, and is supported at a bending fulcrum position from the other side in the width direction of the one side of the L shape. A bending fulcrum movable roller mechanism having a bending fulcrum movable roller that is rotatably supported by a movable shaft, and is disposed on the front surface in the transport direction of the long material, and the L-shaped of the long material It can be freely rotated by a movable shaft that is pressed against one of the ends in the width direction of one side. A roll bending mechanism having a bending action point movable roller mechanism having a bending position adjustment roller and a holding body that adjusts and holds the pushing position of the bending action point movable roller to the end portion; A molding apparatus characterized by comprising: In the shaping | molding processing apparatus of Claim 2,
The bending fulcrum movable roller has one movable roller and the other movable roller that are mounted on the movable shaft so as to face each other with a space between each other, and opens to the other movable roller side of the one movable roller. A piston body that is movably combined with the bottom cylinder and that presses a side of the long material that is not the object of cutting by the cutting blade mechanism portion from the upper surface at the end surface of the movable roller, and this piston body is connected to the cylinder. A molding apparatus comprising: a pressing body that elastically presses from the bottom side. In the shaping | molding processing apparatus of Claim 2 or 3,
The bending fulcrum fixing roller has a cylindrical outer shape with a uniform diameter, or has a concave groove in a portion of the cylindrical outer portion that holds the elongated material, and the depth of the concave groove is It is slightly shallower than the plate thickness of the long material, and the width dimension of the concave groove is equal to the width dimension of the side of the long material that was cut by the cutting blade mechanism. Molding processing equipment. In the shaping | molding processing apparatus in any one of Claim 2 to 4,
The bending action point movable roller mechanism includes a bending action point movable roller support that rotatably supports the bending action point movable roller, and the bending action point movable roller support is located at a position where the bending action point movable roller is pushed. A molding apparatus characterized by being driven and held by the push-in position adjusting / holding body during adjustment. In the shaping | molding processing apparatus in any one of Claim 2-5,
The bending action point movable roller mechanism portion is formed by bending an end portion of the one side of the long L-shaped member having an L-shaped cross-section to which the bending action point movable roller is pressed into an L shape. A molding apparatus comprising a bending direction switching portion that can be selected and set at one of the end on the opposite side and the end on the opposite side. In the shaping | molding processing apparatus in any one of Claim 1-6,
The bending position holding portion has a pair of guide rollers for holding the long material having a flat cross-sectional shape from both sides in the plate thickness direction, and faces the guide roller pair, and the width of the long material. A guide roller pair mechanism portion having a contact surface abutted against one end portion in the direction, and a plurality of the guide roller pair mechanism portions spaced apart from each other along the transfer direction of the long material and each guide roller A long material holding portion installed so that the abutting mechanism substantially matches the contact surface with the same plane, and the one end portion of the long material is contacted with the contact surface A molding apparatus comprising: a movable mechanism section to be adjusted; and the bending position adjusting / holding body. In the shaping | molding processing apparatus in any one of Claim 1-7,
The bending forming section includes one of the plurality of bending forming roller pairs. Each of the forming forming rollers has an end in the width direction of the long material to which the rotation center axis has been transferred. A roller holding portion that is substantially orthogonal to a line extending in the length direction and that is integrally held at intervals along the transfer direction of the long material, and the roller holding portion in the plate thickness direction of the long material A long material pressurizing section that presses the long material inserted between the forming rollers of each bending forming roller pair in the thickness direction of the pair of bending forming rollers, and each bending forming Axial length direction that adjusts and holds the holding position of at least one of the pair of forming rollers in the axial length direction of the forming roller pair corresponding to the plate thickness of the long material. Position adjustment / holding section and its Each of the bending forming roller pairs is held with one of the forming rollers facing the other forming roller, holds the long material pressing portion, and holds the roller holding portion with the long material. And a holding base body that is movably held substantially parallel to the plate thickness direction. In the shaping | molding processing apparatus in any one of Claim 1 to 8,
The bending forming roller pair of the bending forming portion includes one roller having a cylindrical outer shape having a uniform outer diameter, a cylindrical portion having a cylindrical outer shape having a uniform outer diameter, and the cylindrical portion. A conical portion having a right circular truncated cone-shaped outer surface whose contact portion is the same as the outer diameter of the cylindrical portion and closer to the end portion, or a larger and uniform outer diameter than the cylindrical portion. A stepped portion having a cylindrical outer shape and the other roller having an outer shape formed concentrically and continuously, and each of the other rollers has a right circular cone shape formed by an outer shape of a right circular truncated cone shape. The bending forming roller pair having the other roller having a larger angle is made different from a half angle of the apex angle or an angle formed between the end surface of the stepped portion and the rotation center axis thereof. A molding apparatus characterized by being arranged downstream in the transfer direction. In the shaping | molding processing apparatus in any one of Claim 1-9,
The cutting blade mechanism portion of the cutting part is an upper cutting blade and a lower cutting blade, both of which are circular rotating blades, and a cutting blade mechanism of the long material that is attached to the lower end portion of the rotating shaft of the upper cutting blade. It is movably combined with a presser receiving body that supports a part of the side that is not the object of cutting by the lower part from the lower surface side, and a bottomed cylinder that is formed by opening on the lower surface side of the upper cutting blade, and the long portion at the lower end part. A piston body having a pressing portion that presses a side that is not an object of cutting by the cutting blade mechanism portion of the material from the upper surface side, and a pressing body that elastically presses the piston body from the bottom side of the cylinder, Molding processing equipment. In the shaping | molding processing apparatus in any one of Claim 1 to 10,
Each of the L-shaped long section material holding mechanism sections of the cut processing section is a plate of a portion of the side that is not subject to cutting by the cutting blade mechanism section of the long material subjected to L-shaped bending. A plurality of holding roller pairs having holding rollers that are held between both sides in the thickness direction, a roller holding portion that integrally holds each holding roller of each holding roller pair, and each roller holding portion that has the long length A plate thickness direction moving mechanism that adjusts the positional relationship between the holding rollers that are combined in pairs by moving in the plate thickness direction of the material; A molding apparatus comprising: a holding substrate body that holds a roller holding portion movably and is driven and held by the cutting position adjustment / holding body. A molding apparatus for obtaining an arc-shaped molded body having a constant curvature by bending a long material having an L-shaped cross-sectional shape,
At the bending fulcrum position where the long material having an L-shaped cross-sectional shape transferred along its length direction is subjected to arc-shaped bending from one side in the width direction of either side of the L-shape. A holding fulcrum fixing roller rotatably supported by a fixed shaft, and a movable shaft that holds the long material at the bending fulcrum position from the other side in the width direction of the one side of the L-shape. A bending fulcrum movable roller mechanism having a bending fulcrum movable roller that is freely supported, and a front portion of the long material in the transfer direction, the L-shaped one side of the long material in the width direction A bending action point movable roller that is pressed against one of the ends and is rotatably supported by a movable shaft, and a pushing position adjustment / holding that adjusts and holds the pushing position of the bending action point movable roller to the end. Bending action point movable roller mechanism with body Molding apparatus according to claim Rukoto. The molding apparatus according to claim 12, wherein
The bending fulcrum movable roller has one movable roller and the other movable roller that are mounted on the movable shaft so as to face each other with a space between each other, and opens to the other movable roller side of the one movable roller. A piston body that is movably combined with the bottom cylinder and that presses a side of the long material that is not the object of cutting by the cutting blade mechanism portion from the upper surface at the end surface of the movable roller, and this piston body is connected to the cylinder. A molding apparatus comprising: a pressing body that elastically presses from the bottom side. The molding apparatus according to claim 12 or 13,
The bending fulcrum fixing roller has a cylindrical outer shape with a uniform diameter, or has a concave groove in a portion of the cylindrical outer portion that holds the elongated material, and the depth of the concave groove is It is slightly shallower than the plate thickness of the long material, and the width dimension of the concave groove is equal to the width dimension of the side of the long material that was cut by the cutting blade mechanism. Molding processing equipment. In the shaping | molding processing apparatus in any one of Claim 12-14,
The bending action point movable roller mechanism includes a bending action point movable roller support that rotatably supports the bending action point movable roller, and the bending action point movable roller support is located at a position where the bending action point movable roller is pushed. A molding apparatus characterized by being driven and held by the push-in position adjusting / holding body during adjustment. In the shaping | molding processing apparatus in any one of Claim 12-15,
The bending action point movable roller mechanism portion is formed by bending an end portion of the one side of the long L-shaped member having an L-shaped cross-section to which the bending action point movable roller is pressed into an L shape. A molding apparatus comprising a bending direction switching portion that can be selected and set at one of the end on the opposite side and the end on the opposite side. In the shaping | molding processing apparatus in any one of Claim 1-16,
A molding apparatus comprising: an adjustment amount indicating device that indicates an adjustment amount to each of the pushing position adjustment / holding body and / or the bending position adjustment / holding body and the cutting position adjustment / holding body.

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