JP6435205B2 - Roll forming equipment - Google Patents

Description

  The present invention relates to a roll forming apparatus, and more particularly to a roll forming apparatus that can easily replace a forming roller.

  In recent years, a large number of pipe members made of iron or the like that have high strength and can be molded in various ways have been used as strength parts for automobiles and the like.

  Such pipe members are also distributed as commercial products. However, in order to further reduce costs or increase the degree of freedom in setting the material and size, steel plates were purchased and processed into pipe members with a desired configuration. Is preferable. For that purpose, the necessity to shape | mold the purchased steel plate in a cylindrical member arises easily.

  Under such circumstances, Patent Document 1 relates to a roll bender 1 attached to a press brake 11, a lower roller 3 made of a material having a predetermined elasticity such as urethane, and an upper roller 2 made of a material such as steel that does not easily deform. A motor 5 with a reduction gear for rotating the lower roller 3, a coupling 6 for transmitting the rotation of the external output shaft of the motor 5 with the reduction gear to the lower roller 3, and one end in the length direction of the upper roller 2 being rotatable. A fixed bearing 2b that is detachably supported, a movable bearing 2a that rotatably supports the other end in the length direction of the upper roller 2, and a guide rail 4 that supports the movable bearing 2a so as to be linearly movable are provided. The configuration is disclosed. Further, in Patent Document 1, in order to release the steel plate 21 from the sandwiched state between the lower roller 3 and the upper roller 2, the upper press member 12 of the press brake 11 is pulled upward, and the movable bearing 2a is moved along the guide rail 4. A configuration is also disclosed in which one end of the rotation shaft of the upper roller 2 is released by sliding.

Japanese Patent Laid-Open No. 11-77170

  However, according to the study of the present inventor, the configuration of Patent Document 1 discloses a configuration in which roll forming is performed and the resulting cylindrical member can be easily removed from the roll forming apparatus. However, there is no disclosure or suggestion of a configuration in which the upper forming roller, the lower forming roller, etc. can be easily removed from the roll forming apparatus and another upper forming roller, the lower forming roller, etc. can be easily attached to the roll forming apparatus. Not what you want.

  In particular, according to the study of the present inventor, there are a wide variety of pipe members used as strength parts in a single automobile or the like, and there are also a wide variety of specifications and types of automobiles or the like. Is extremely diverse, and a wide variety of forming rollers and related parts are required to achieve the optimum roll forming process to form cylindrical members that meet the specifications and types of the various pipe materials. . Such a wide variety of forming rollers and related parts need to be easily exchanged and attached to the roll forming apparatus in accordance with the various specifications and types of pipe materials required.

  The present invention has been made through the above-described studies, and can be quickly formed with a simple configuration, and a roll forming in which another forming roller and its related parts can be attached quickly after the used forming roller and its related parts are removed. An object is to provide an apparatus.

  In order to achieve the above object, a roll forming apparatus according to a first aspect of the present invention includes an upper forming roller, an upper roller holding member that rotatably holds the upper forming roller, and an upper member that supports the upper roller holding member. An upper roller unit having a roller support holder, a lower molding roller that roll-forms a member to be processed in cooperation with the upper molding roller, a lower roller holding member that rotatably holds the lower molding roller, and the lower A lower roller unit having a lower roller support holder that supports the roller holding member; and a locking mechanism that gives different locking positions and non-locking positions in the vertical direction to at least one of the upper roller holding member and the lower roller holding member. The locking mechanism is provided in front of at least one of the upper roller holding member and the lower roller holding member. In a state where the non-locking position is given, the upper forming roller and the lower forming roller cooperate with each other in a direction crossing the feeding direction of the processing target member when the roll forming is performed on the processing target member. The upper forming roller and the upper roller holding member of the upper roller unit, and the corresponding ones of the lower forming roller and the lower roller holding member of the lower roller unit are made to be drawable.

  In addition to the first aspect, the present invention provides a first engagement in which the locking mechanism gives the upper roller holding member a locking position and a non-locking position with respect to the upper roller support holder that are different in the vertical direction. A locking mechanism and a second locking mechanism that gives the lower roller holding member a locking position and a non-locking position with respect to the lower roller support holder that are different in the vertical direction. The upper forming roller and the upper roller holding member can be integrally pulled out in a direction intersecting the feeding direction in a state where the unlocking position is given to the upper roller holding member, and the second roller The locking mechanism is in a state in which the lower forming roller and the lower roller holding member can be pulled out integrally in a direction intersecting the feeding direction in a state where the unlocking position is given to the lower roller holding member. That second And aspects.

  According to the present invention, in addition to the second aspect, the first locking mechanism provides the upper roller holding member with the non-locking position below the locking position, and the second locking mechanism. The stop mechanism has a third aspect to give the lower roller holding member the unlocking position above the locking position.

  In addition to the second or third aspect, the present invention provides the first locking mechanism in which the upper forming roller and the lower roller are in a state in which the upper roller holding member is provided with the non-locking position. The upper forming roller and the upper roller holding member can be pulled out in a direction orthogonal to the feed direction of the processing target member when the roll forming is performed on the processing target member in cooperation with the forming roller. The second locking mechanism is a state in which the lower forming roller and the lower roller holding member can be pulled out in a direction orthogonal to the feeding direction in a state where the unlocking position is given to the lower roller holding member. This is the fourth aspect.

  In addition to any one of the second to fourth aspects, the first locking mechanism is a mechanical locking mechanism, and the second locking mechanism uses pressure. It is the fifth aspect that it is a lifting mechanism.

  According to the configuration of the first aspect of the present invention, the locking mechanism that gives different locking positions and non-locking positions in the vertical direction to at least one of the upper roller holding member and the lower roller holding member includes the upper roller holding member, The upper forming roller and the lower forming roller cooperate with each other in a state in which at least one of the lower roller holding members is provided with a non-locking position, and intersect with the feed direction of the processing target member when roll forming the processing target member. In the direction, the upper forming roller and the upper roller holding member of the upper roller unit, and the lower forming roller and the lower roller holding member corresponding to the lower roller unit can be pulled out, so that the object to be processed when the roller unit is pulled out. Forming roller that was used quickly with a simple configuration while avoiding an increase in the size of the device configuration in a manner that does not overlap with the introduction, feed, and discharge areas of members. It can be attached to another forming roller and associated components after removal of the related parts.

  Further, according to the configuration of the second aspect of the present invention, the first locking mechanism in which the locking mechanism gives the upper roller holding member a locking position and a non-locking position with respect to the upper roller support holder that are different in the vertical direction. And a second locking mechanism that gives the lower roller holding member a locking position and a non-locking position with respect to the lower roller support holder that are different in the vertical direction, and the first locking mechanism is the upper roller holding member. In the state where the non-locking position is given to the upper forming roller and the lower forming roller in cooperation with the upper forming roller and the lower forming roller in the direction intersecting the feed direction of the processing target member when roll forming the processing target member, Lower molding in a direction intersecting the feed direction of the workpiece to be processed with the upper roller holding member in a state where it can be pulled out integrally and the second locking mechanism giving the lower roller holding member a non-locking position. One roller and lower roller holding member By pulling out the upper and lower roller units, the introduction of the workpiece, feeding, and overlap to the discharge area do not occur when pulling out both the upper and lower roller units, while avoiding an increase in the size of the device configuration and quick operation with a simple configuration. In addition, after removing both the upper and lower forming rollers and the like, the other upper and lower forming rollers and the like can be attached.

  Further, according to the configuration of the third aspect of the present invention, the first locking mechanism gives the upper roller holding member a non-locking position below the locking position, and the second locking mechanism By providing the roller holding member with a non-locking position above the lock position, the space between the upper and lower forming rollers and the work piece member introduction, feed, and discharge areas can be effectively used to achieve a large device configuration. It is possible to attach both the upper and lower molding rollers and the like quickly after removing both the upper and lower molding rollers and the like which have been used quickly and with a simple configuration, while avoiding the need to make them easy.

  According to the configuration of the fourth aspect of the present invention, the upper molding roller and the lower molding roller cooperate in a state where the first locking mechanism gives the upper roller holding member the non-locking position. The upper forming roller and the upper roller holding member can be pulled out in a direction perpendicular to the feeding direction of the processing target member when roll forming the processing target member, and the second locking mechanism is a lower roller holding member. In the state where the unlocking position is given, the lower forming roller and the lower roller holding member can be pulled out in the direction orthogonal to the feeding direction, so that processing is performed when both the upper and lower forming rollers and the roller holding member are pulled out. After removing the upper and lower forming rollers, etc. that were used quickly with a simple configuration, while avoiding an increase in the size of the device configuration in a manner that does not more reliably overlap the introduction, feed and discharge areas of the target member Another Both forming roller or the like can be attached to.

  Further, according to the configuration in the fifth aspect of the present invention, the first locking mechanism is a mechanical locking mechanism, and the second locking mechanism is a lifting mechanism using pressure. It is possible to give a locking position and a non-locking position more surely in an optimal manner to both the upper and lower molding rollers, and after removing both the upper and lower molding rollers, etc. Both upper and lower forming rollers can be attached.

It is a typical side view of the roll forming apparatus in the embodiment of the present invention. It is an enlarged side view of the upper roller unit of the roll forming apparatus in the present embodiment. It is Z1-Z1 expanded sectional drawing of FIG. It is Z2-Z2 expanded sectional drawing of FIG. It is an enlarged side view of the lower roller unit of the roll forming apparatus in the present embodiment. It is Z3-Z3 expanded sectional view of FIG. It is a schematic diagram which shows the roll shaping | molding process by the roll shaping | molding apparatus in this embodiment, and shows a roll forming process in time series to FIG.7 (a) from FIG.7 (f). FIGS. 8A and 8B are enlarged side views of the upper roller unit showing a process of removing the upper roller unit of the roll forming apparatus in the present embodiment, FIG. 8A shows the mounted upper roller unit, and FIG. The upper roller unit on the way is shown. 9A is a Z1-Z1 sectional view of FIG. 8A corresponding to FIG. 3 in position, and FIG. 9B is a view corresponding to FIG. 9A in position. It is Z1-Z1 sectional drawing of 8 (b). 10A is a Z2-Z2 cross-sectional view of FIG. 8A corresponding to FIG. 4 in position, and FIG. 10B is a view corresponding to FIG. 10A in position. It is Z2-Z2 sectional drawing of 8 (b). FIGS. 11A and 11B are enlarged side views of the lower roller unit showing a process of removing the lower roller unit of the roll forming apparatus in the present embodiment, FIG. 11A shows the mounted lower roller unit, and FIG. The lower roller unit on the way is shown. 12 (a) is a Z3-Z3 cross-sectional view of FIG. 11 (a) corresponding to FIG. 6 in position, and FIG. 12 (b) is a view corresponding to FIG. 12 (a) in position. It is Z3-Z3 sectional drawing of 11 (b).

  Hereinafter, a roll forming apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings as appropriate. In the figure, the x-axis, y-axis, and z-axis form a three-axis orthogonal coordinate system. Further, it is assumed that the positive direction of the z axis is the upward direction.

  FIG. 1 is a schematic side view of a roll forming apparatus according to the present embodiment. FIG. 2 is an enlarged side view of the upper roller unit of the roll forming apparatus in the present embodiment. 3 is an enlarged sectional view taken along the line Z1-Z1 in FIG. 2, and FIG. 4 is an enlarged sectional view taken along the line Z2-Z2 in FIG. FIG. 5 is an enlarged side view of the lower roller unit of the roll forming apparatus in the present embodiment, and FIG. 6 is an enlarged cross-sectional view of Z3-Z3 in FIG.

  As shown in FIG. 1 to FIG. 6, the roll forming apparatus 1 is fixed on a base 10 that is typically a metal base 10 fixed to an installation place such as a floor (not shown). Typically, a metal frame 20, an upper roller unit 30 fixed to the frame 20, a lower roller unit 60 fixed to the base 10 below the upper roller unit 30, and an upper roller drive motor 100 And a lower roller driving motor 110 and a lower roller pressing motor 120.

  Specifically, the upper roller unit 30 includes an upper molding roller 32, an upper auxiliary roller 34 that assists the upper molding roller 32, an upper roller holder 36 that holds the upper molding roller 32 and the upper auxiliary roller 34, and an upper roller holder 36. The upper roller support 38 that supports the upper roller support 38, the upper roller support holder 40 that detachably holds the upper roller support 38, and the cam lock mechanism that defines the locking / non-locking state of the upper roller support 38 with respect to the upper roller support holder 40 42 and an upper rotating roller 50 disposed on the upper roller support holder 40. Further, the upper roller holder 36 and the upper roller support 38 may be configured as an integral same member instead of separate members, and may be used as an upper roller holding member to further simplify the configuration.

  Here, the upper forming roller 32 is an upper forming roller used for roll forming, and can freely contact the member to be processed from above. The upper molding roller 32 extends in the x-axis direction, and is rotatable around the rotation axis C1 extending in the x-axis direction by a driving force from the upper roller driving motor 100. It consists of a single or composite member with sufficient mechanical strength and wear resistance. A plurality of upper forming rollers 32 may be provided in such a manner as to be divided in the x-axis direction.

  The upper auxiliary roller 34 is an auxiliary roller for the upper molding roller 32, and always abuts on the upper molding roller 32. The upper auxiliary roller 34 extends in the x-axis direction, and is rotatable around the rotation axis C2 extending in the x-axis direction as a center of rotation following the rotation of the upper forming roller 32. It consists of a single or composite member with sufficient mechanical strength and wear resistance. Note that one upper auxiliary roller 34 may be disposed above the upper molding roller 32 or three or more above the upper molding roller 32 so as to surround the periphery thereof. Further, the upper auxiliary roller 34 may be omitted in view of the required processing accuracy.

  The upper roller holder 36 is typically made of metal, and holds the upper forming roller 32 and the upper auxiliary roller 34 so that they can rotate about the corresponding rotation shafts C1 and C2. The upper roller holder 36 opens downward to expose a part of the upper molding roller 32 from the opening. When a plurality of upper forming rollers 32 are provided in the x-axis direction, a plurality of upper roller holders 36 may be provided correspondingly.

  The upper roller support 38 is typically made of metal and supports it above the upper roller holder 36. The upper roller support 38 typically has a T-shaped vertical cross section in a plane parallel to the yz plane, and protrudes upward at an upper portion thereof and extends upward in the x-axis direction. 39.

  The upper roller support holder 40 is typically made of metal, and is fixed to the upper portion of the frame 20 to hold the upper portion of the upper roller support 38 and hang it down. The upper roller support holder 40 has an upper insertion groove 41 that is recessed upward at the top and extends in the x-axis direction. An upper insertion convex portion 39 of the upper roller support 38 can be inserted into the upper insertion groove 41.

  The cam lock mechanism 42 is provided with respect to the upper roller support holder 40 and includes a cam 44 having an outer contour shape including a large diameter portion and a small diameter portion. The cam 44 is typically an upper roller so as to face the lower surface of the upper portion of the upper roller support 38 and to be rotatable about a rotation axis CC extending in the direction of the y-axis. The support holder 40 is disposed at both ends in the y-axis direction. A plurality of cams 44 are typically arranged in the x-axis direction.

  In a state where the cam 44 is erected in the vertical direction with respect to the large diameter portion, the upper roller support 38 is pressed by the upper roller support holder 40 and takes an upper fixed position held by the upper roller support holder 40. That is, at this time, the upper roller support 38 is locked with the upper roller support holder 40, and the upper insertion convex portion 39 of the upper roller support 38 is inserted into the upper insertion groove 41 of the upper roller support holder 40. Is done. On the other hand, in the state where the cam 44 is erected in the vertical direction on the small diameter portion, the upper roller support 38 is released from the upper roller support holder 40 and assumes a lower pullable position. That is, at this time, the upper roller support 38 is not locked with respect to the upper roller support holder 40. The lock mechanism that defines the locked / unlocked state of the upper roller support 38 with respect to the upper roller support holder 40 may be a link lock mechanism other than the cam lock mechanism. In addition, although the overall configuration of the apparatus becomes complicated, an upper and lower fixed position where the upper roller support 38 is held by the upper roller support holder 40 and an upper mechanism using a lifting mechanism having a pressure source instead of a mechanical lock mechanism. The lower supportable position where the roller support 38 is released from the upper roller support holder 40 may be realized. Further, although the size of the entire apparatus becomes large and the structure thereof becomes complicated, the upper roller support 38 is located at the pullable position where the upper roller support 38 is not locked with respect to the upper roller support holder 40. It is also possible to set it above the fixed position where the holder 40 is locked.

  The upper rotating roller 50 is disposed in the upper roller support holder 40 so as to be positioned below the upper portion of the upper roller support 38. The upper rotation roller 50 is rotatable about a rotation axis C3 extending in the y-axis direction as a rotation center. The upper rotating roller 50 is separated from the lower surface of the upper portion of the upper roller support 38 when the upper roller support 38 takes the upper fixed position held by the upper roller support holder 40, while the upper roller support 38 is When the lower pullable position released from the roller support holder 40 is taken, the upper roller support 38 is placed in contact with the lower surface of the upper portion of the upper roller support 38. A plurality of upper rotating rollers 50 are typically arranged in the x-axis direction. ;

  The lower roller unit 60 includes a lower molding roller 62, a lower auxiliary roller 64 that assists the lower molding roller 62, a lower roller holder 66 that holds the lower molding roller 62 and the lower auxiliary roller 64, and a lower roller holder 66. A lower roller support 68 that supports the lower roller support 68; a lower roller support holder 70 that holds the lower roller support 68 detachably; an elevating mechanism 72 that raises and lowers the lower roller support 68 relative to the lower roller support holder 70; And a lower rotating roller 78 disposed. The lower roller holder 66 and the lower roller support 68 may be configured as an integral same member instead of separate members, and may be used as a lower roller holding member to further simplify the configuration.

  Here, the lower forming roller 62 is a lower forming roller used for roll forming, and is capable of coming into contact with the member to be processed from below. The lower forming roller 62 extends in the x-axis direction, and is rotatable around a rotation axis C4 extending in the x-axis direction by a driving force from the lower roller driving motor 110. It consists of a single or composite member with sufficient mechanical strength and wear resistance. Note that a plurality of lower forming rollers 62 are preferably provided in parallel to the x-axis direction, and a plurality of lower forming rollers 62 may be provided in a manner such as being divided in the x-axis direction.

  The lower auxiliary roller 64 is an auxiliary roller for the lower molding roller 62 and always abuts on the side and lower side of the lower molding roller 62. The lower auxiliary roller 64 extends in the x-axis direction, and is rotatable about a rotation axis C5 extending in the x-axis direction as a rotation center following the rotation of the lower forming roller 62. It consists of a single or composite member with sufficient mechanical strength and wear resistance. Note that a plurality of lower auxiliary rollers 64 are preferably disposed on the side and lower side of the lower forming roller 62, and their diameters may be different. Further, the lower auxiliary roller 64 may be omitted in view of the required processing accuracy.

  The lower roller holder 66 is typically made of metal, and holds the lower forming roller 62 and the lower auxiliary roller 64 so that they can rotate about the corresponding rotation shafts C4 and C5. The lower roller holder 66 opens upward to expose a part of each of the lower forming roller 62 and the lower auxiliary roller 64 located on the side thereof from the opening.

  The lower roller support 68 is typically made of metal, and places and supports it under the lower roller holder 66. The lower roller support 68 is typically a rectangular block body, and has a lower insertion groove 69 that extends upward from the lower surface thereof and extends in the x-axis direction. The lower insertion groove 69 may be a plurality of insertion recesses provided in the x-axis direction.

  The lower roller support holder 70 is typically made of metal, and is placed and fixed on the base 10. The upper surface of the lower roller support holder 70 abuts on the lower surface of the lower roller support 68 and holds it. The lower roller support holder 70 is typically a rectangular block body, and has a lower insertion convex portion 71 protruding upward from the upper surface thereof and extending in the x-axis direction. The lower insertion protrusion 71 can be inserted into the lower insertion groove 69 of the lower roller support 68. When the plurality of lower insertion grooves 69 in the lower roller support 68 are provided in the x-axis direction, the lower insertion convex portion 71 of the lower roller support holder 70 is moved in the x-axis direction correspondingly. A configuration in which a plurality of them are provided may be used.

  The lifting mechanism 72 is provided with respect to the lower roller support 68, and is mounted on the base 10 and fixed thereto, and a lifting piston 75 mounted in the cylinder 74 and movable in the vertical direction. A piston receiving member 76 that is connected to an upper end portion of the elevating piston 75 and that is disposed adjacent to a side portion of the lower roller support 68 in the y-axis direction. The elevating piston 75 is movable in the vertical direction in accordance with a pressure such as air pressure or hydraulic pressure applied to the cylinder 74 from a pressure source (not shown). A plurality of lifting / lowering units including the cylinder 74, the lifting / lowering piston 75, and the piston receiving member 76 are typically disposed on both sides of the lower roller support 68 in the y-axis direction.

  In a state where the lifting piston 75 is at the lowest position, the lower roller support 68 takes a lower fixed position in which the lower surface of the lower roller support 68 is in contact with the upper surface of the lower roller support holder 70. That is, at this time, the lower roller support 68 is locked with respect to the lower roller support holder 70, and the lower insertion convex portion 71 of the lower roller support holder 70 is inserted into the lower insertion groove 69 of the lower roller support 68. Is done. On the other hand, in a state where the lifting piston 75 is in the most raised position, the lower roller support 68 takes an upper pullable position where the lower surface thereof is separated from the upper surface of the lower roller support holder 70. That is, at this time, the lower roller support 68 is not locked with respect to the lower roller support holder 70. Note that although the overall configuration of the apparatus becomes large in order to increase the strength for moving heavy objects, the ascending / descending state that defines the locked / unlocked state of the lower roller support 68 with respect to the lower roller support holder 70 The mechanism may be replaced with a mechanical lock mechanism such as a cam lock mechanism or a link lock mechanism. In addition, although the size of the entire apparatus becomes large and the configuration thereof becomes complicated, the lower roller support 68 is located at the pullable position where the lower roller support 68 is not locked with respect to the lower roller support holder 70. It is also possible to set the position below a fixed position where the holder 70 is locked.

  The lower rotating roller 78 is disposed on the piston receiving member 76 so as to be positioned below the lower portion of the lower roller support 68. The lower rotation roller 78 is rotatable around a rotation axis C6 extending in the y-axis direction as a rotation center. The lower rotating roller 78 is separated from the lower surface of the lower roller support 68 when the lower roller support 68 is in the lower fixed position held by the lower roller support holder 70, while the lower roller support 68 is lower roller support 68. When the upper pullable position released from the holder 70 is taken, the lower roller support 68 is placed in contact with the lower surface of the lower roller support 68. A plurality of lower rotating rollers 78 are typically arranged in the x-axis direction.

  The upper roller drive motor 100 is a drive motor for the upper molding roller 32. The upper roller driving motor 100 is mounted on the frame 20, and the rotation shaft C1 of the upper molding roller 32 via the upper drive transmission shaft 102 and the upper coupling 104. Rotational force can be applied to The lower roller drive motor 110 is a drive motor for the lower molding roller 62 and is attached to the frame 20 and is connected to the rotation axis C4 of the lower molding roller 62 via the lower drive transmission shaft 112 and the lower coupling 114. The rotational force can be applied freely. The lower roller pressure motor 120 is a pressure motor for the lower molding roller 62. The lower roller pressure motor 120 is attached to the frame 20 and presses the lower roller support holder 70 upward via the pressure drive transmission shaft 122. The lower molding roller 62 can be pressed against the upper molding roller 32. Here, the upper coupling 104 can freely connect and disconnect the upper drive transmission shaft 102 and the rotation shaft C <b> 1 of the upper molding roller 32. The lower coupling 114 can freely connect and disconnect the lower drive transmission shaft 112 and the rotation shaft C4 of the lower forming roller 62.

  The roll forming apparatus 1 having the above configuration executes the following roll forming process. Hereinafter, the roll forming process by the roll forming apparatus 1 will be described in detail with reference to FIG. In addition, this roll forming process is realizable by the manual process by an operator, the automatic process by control of the controller which abbreviate | omits illustration, or the combination of this manual process and an automatic process.

  FIG. 7 is a schematic diagram showing a roll forming process by the roll forming apparatus 1 in the present embodiment, and FIGS. 7A to 7F show the roll forming steps in chronological order.

  First, as a premise for carrying out the roll forming process, the large diameter portion of the cam 44 is raised in the vertical direction, the upper roller support 38 is held in a locked state by the upper roller support holder 40, and the upper roller support The upper insertion convex portion 38 of the upper roller support holder 40 has a fixed position above the upper roller support 38 inserted into the upper insertion groove 41. At the same time, the lifting piston 75 is stopped at the lowest position so that the lower roller support 68 is in contact with the upper surface of the lower roller support holder 70, and the lower roller support 68 is brought into contact with the lower roller support holder 70. The lower insertion protrusion 71 of the lower roller support holder 70 is held in a locked state and takes a fixed position below the lower roller support 68 inserted into the lower insertion groove 69 of the lower roller support 68. At this time, the driving force of the upper roller driving motor 100 is transmitted to the rotating shaft C1 of the upper molding roller 32 via the upper drive transmission shaft 102 and the connected upper coupling 104, and the upper molding roller 32 is driven to rotate. The driving force of the lower roller driving motor 110 is transmitted to the rotating shaft C4 of the lower molding roller 62 via the lower drive transmission shaft 112 and the connected lower coupling 114, and the lower molding roller 62 is connected to the upper molding roller 32. Are driven to rotate in the opposite direction.

  In this state, as shown in FIG. 7A, one end portion of the workpiece W that is typically a steel plate is introduced between the upper forming roller 32 and the lower forming roller 62. As described above, when one end portion of the workpiece W is introduced between the upper forming roller 32 and the lower forming roller 62, the driving force of the lower roller pressing motor 120 is transmitted via the pressing drive transmission shaft 122. The lower forming roller 62 is pressed against the upper forming roller 32 by transmitting to the lower roller support holder 70 and pressing it upward.

  Then, as shown in FIGS. 7B and 7C, when the workpiece W is advanced in the positive direction of the y-axis by the driving force of the upper molding roller 32 and the lower molding roller 62, the upper molding roller Due to the difference in rotational peripheral speed between the lower forming roller 32 and the lower forming roller 62, the half portion on one end side of the workpiece W is curved upward.

  Here, as shown in FIG. 7D, when the other end of the workpiece W reaches between the upper molding roller 32 and the lower molding roller 62, the upper roller driving motor 100 and the lower roller driving motor 110 are temporarily turned on. Stop.

  Thereafter, as shown in FIG. 7 (e), the upper roller driving motor 100 and the lower roller driving motor 110 are rotated in opposite directions to advance the workpiece W in the negative direction of the y axis in the opposite direction. Then, the half part on the other end side of the processing target member W also curves upward.

  Then, as shown in FIG. 7F, when the central portion of the workpiece W reaches between the upper forming roller 32 and the lower forming roller 62, the upper roller driving motor 100 and the lower roller driving motor 110 are stopped. Although the end portions of the cylindrical wall are separated from each other, a workpiece W formed into a cylindrical shape is obtained.

  Thereafter, when the cylindrical workpiece W is discharged from the roll forming apparatus 1 and subjected to necessary post-processing not shown in the drawing, a pipe member as a final product is obtained.

  Now, the roll forming apparatus 1 that performs roll forming with the above configuration can easily remove the upper roller unit 30 and the lower roller unit 60 by executing the following removal process. Hereinafter, the removal process of removing the upper roller unit 30 and the lower roller unit 60 will be described in detail with reference to FIGS. Such a removal process can be realized by a manual process by an operator, an automatic process by control of a controller (not shown), or a combination of the manual process and the automatic process. Further, if necessary, only one of the upper roller unit 30 and the lower roller unit 60 may be removed, and corresponding ones of the locking mechanisms such as the cam lock mechanism 42 and the lifting mechanism 72 may be omitted.

  FIG. 8 is an enlarged side view of the upper roller unit 30 showing the removal process of the upper roller unit 30 of the roll forming apparatus 1 in the present embodiment, and FIG. 8A shows the upper roller unit 30 in the mounted state. FIG. 8B shows the upper roller unit being removed. 9A is a Z1-Z1 sectional view of FIG. 8A corresponding to FIG. 3 in position, and FIG. 9B is a view corresponding to FIG. 9A in position. It is Z1-Z1 sectional drawing of 8 (b). 10A is a Z2-Z2 cross-sectional view of FIG. 8A corresponding to FIG. 4 in position, and FIG. 10B is a view corresponding to FIG. 10A in position. It is Z2-Z2 sectional drawing of 8 (b). FIG. 11 is an enlarged side view of the lower roller unit 60 showing a step of removing the lower roller unit 60 of the roll forming apparatus 1 in the present embodiment. FIG. 11A shows the lower roller unit 60 in the mounted state. FIG. 11B shows the lower roller unit 60 in the middle of removal. 12 (a) is a Z3-Z3 cross-sectional view of FIG. 11 (a) corresponding to FIG. 6 in position, and FIG. 12 (b) is a view corresponding to FIG. 12 (a) in position. It is Z3-Z3 sectional drawing of 11 (b).

  First, in the removal process of the upper roller unit 30, the assembled state of each component of the upper roller unit 30 is changed from the state shown in FIGS. 8A, 9A, and 10A to FIG. b) Transition to the state shown in FIG. 9B and FIG. 10B.

  That is, in the assembled state of the upper roller unit 30 shown in FIG. 8A, FIG. 9A, and FIG. 10A, the upper roller unit 30 is in the assembled state at the time of roll forming. In this case, the large diameter portion of the cam 44 is erected in the vertical direction, the upper roller support 38 is held in a locked state by the upper roller support holder 40, and the upper insertion convex portion 39 of the upper roller support 38 is raised. It is an upper fixed position inserted into the upper insertion groove 41 of the roller support holder 40. At this time, the upper coupling 104 couples the upper drive transmission shaft 102 and the rotation shaft C1 of the upper molding roller 32 so as to transmit the driving force of the upper roller drive motor 100 to the rotation shaft C1 of the upper molding roller 32. Connected.

  Next, as shown in FIGS. 8B, 9B, and 10B, the upper coupling 104 is disconnected from the upper roller driving motor 100 so that the rotation shaft C1 of the upper molding roller 32 is disconnected. While switching to the state, the cam 44 is rotated to raise its small diameter portion in the vertical direction, the upper roller support 38 is released from the upper roller support holder 40 and lowered, and the upper roller support 38 can be pulled out. The locking position is taken. At this time, the upper lower surface of the upper roller support 38 is placed on the upper rotating roller 50, and the upper insertion convex portion 39 of the upper roller support 38 extends downward from the upper insertion groove 41 of the upper roller support holder 40. It is released and released. At this time, the lower end portion of the upper forming roller 32 is located slightly above the upper end portions of the lower forming roller 62 and the lower auxiliary roller 64.

  Then, the upper roller support 38 is moved in the x-axis direction (typically opposite to the position where the upper roller drive motor 100 is disposed) while the upper lower surface of the upper roller support 38 is transferred by the upper rotating roller 50. The upper forming roller 32, the upper auxiliary roller 34, the upper roller holder 36, and the upper roller support 38 of the upper roller unit 30 are pulled out from the roll forming apparatus 1 and removed. Will be able to. In addition, when the lower non-locking position where the upper roller support 38 can be pulled out is taken, a part of the upper insertion convex portion 39 of the upper roller support 38 is left in the upper insertion groove 41 of the upper roller support holder 40. In such a case, they can be used as a guide when the upper roller support 38 is pulled out. Further, the upper roller support 38 can be pulled out in the direction deviated with respect to the x-axis unless the movement distance when the upper roller support 38 is pulled out is increased. In order to mount the upper forming roller 32 including the same or different upper forming roller 32, the upper auxiliary roller 34, the upper roller holder 36, and the upper roller support 38 on the roll forming apparatus 1 again, the reverse of the above steps. What is necessary is just to perform a process.

  Next, in the step of removing the lower roller unit 60, the assembled state of each component of the lower roller unit 60 is changed from the state shown in FIGS. 11A and 12A to FIGS. 11B and 12B. Transition to the state shown in (b).

  That is, in the assembled state of the lower roller unit 60 shown in FIG. 11A and FIG. 12A, the lower roller unit 60 is in an assembled state during roll forming. Is stopped at the lowest position so that the lower roller support 68 is brought into contact with the upper surface of the lower roller support holder 70, and the lower roller support 68 is held in a locked state with the lower roller support holder 70. Thus, the lower insertion convex portion 71 of the lower roller support holder 70 is a fixed position below the lower roller support 68 inserted into the lower insertion groove 69 of the lower roller support 68. At this time, the lower coupling 114 couples the lower drive transmission shaft 112 and the rotation shaft C4 of the lower molding roller 62 so as to transmit the driving force of the lower roller driving motor 110 to the rotation shaft C4 of the lower molding roller 62. Connected.

  Next, as shown in FIGS. 11B and 12B, the lower coupling 114 is moved up and down while switching to a non-connected state in which the rotation shaft C <b> 4 of the lower forming roller 62 is disconnected from the lower roller driving motor 110. The piston 75 is raised to the highest position, and the lower roller support 68 is pushed up by the lower rotating roller 78 in contact with the lower surface of the lower roller support 68, and the lower surface of the lower roller support 68 is moved to the lower roller support holder 70. It is separated from the upper surface, and an upper non-locking position where the lower roller support 68 can be pulled out is taken. At this time, the lower surface of the lower roller support 68 is placed on the lower rotation roller 78, and the lower insertion groove 69 of the lower roller support 68 comes upward from the lower insertion convex portion 71 of the lower roller support holder 70. To be released.

  The lower roller support 68 is moved in the x-axis direction (typically x on the opposite side of the position where the lower roller drive motor 110 is disposed) while the lower surface of the lower roller support 68 is transferred by the lower rotation roller 78. The lower forming roller 62, the lower auxiliary roller 64, the lower roller holder 66, and the lower roller support 68 of the lower roller unit 60 can be pulled out from the roll forming apparatus 1 by removing them in the positive direction of the shaft). become. When the lower non-locking position where the lower roller support 68 can be pulled out is taken, a part of the lower insertion convex portion 71 of the lower roller support holder 70 is left in the lower insertion groove 69 of the lower roller support 68. In such a case, they can be used as a guide when the lower roller support 68 is pulled out. Further, if it is not necessary to increase the moving distance when the lower roller support 68 is pulled out, the lower roller support 68 can be pulled out in a direction deviated with respect to the x axis. In order to mount the lower forming roller 62 including the same or different lower forming roller 62, the lower auxiliary roller 64, the lower roller holder 66, and the lower roller support 68 on the roll forming apparatus 1 again, the reverse of the above steps. What is necessary is just to perform a process. Alternatively, the lower roller unit 60 side may be pulled out first, and then the upper roller unit 30 side may be pulled out, or these may be pulled out simultaneously.

  As described above, according to the configuration of the present embodiment, the locking mechanisms 42 and 72 that give different locking positions and non-locking positions in the vertical direction to at least one of the upper roller holding members 36 and 38 and the lower roller holding members 66 and 68. However, the upper forming roller 32 and the lower forming roller 62 cooperate with each other in a state in which at least one of the upper roller holding members 36 and 38 and the lower roller holding members 66 and 68 is given a non-locking position. The upper forming roller 32 and the upper roller holding members 36 and 38 of the upper roller unit 30 and the lower forming roller 62 and the lower roller unit 60 of the upper roller unit 30 in a direction crossing the feeding direction of the workpiece W when roll forming is performed on the lower roller unit 60. By making the corresponding ones of the roller holding members 66 and 68 into a state where they can be pulled out, introduction, feeding and discharging of the workpiece W when the roller units 30 and 60 are pulled out Attaching another forming roller and related parts quickly after removing the used forming roller and related parts quickly with a simple structure, while avoiding an increase in the size of the device configuration in a manner that does not cause overlap in the area. Can do.

  The first and second locking mechanisms 42 and 72, which provide the upper roller holding members 36 and 38 with different locking and non-locking positions with respect to the upper roller support holder 40 in the vertical direction, and the lower roller holding A second locking mechanism 72 that gives the members 66 and 68 a locking position and a non-locking position with respect to the lower roller support holder 70 that are different in the vertical direction, and the first locking mechanism 42 holds the upper roller. The upper forming roller 32 and the lower forming roller 62 cooperate with each other in the state in which the non-locking position is given to the members 36 and 38, and intersect with the feed direction of the processing target member W when roll forming the processing target member W. The upper molding roller 32 and the upper roller holding members 36 and 38 are in a state in which the upper molding roller 32 and the upper roller holding members 36 and 38 can be pulled out integrally, and the second locking mechanism 72 gives the lower roller holding members 66 and 68 an unlocking position. In the processing target member W By forming the lower forming roller 62 and the lower roller holding members 66 and 68 in a state that can be pulled out integrally in a direction that intersects the vertical direction, both the upper and lower forming rollers 32 and 62 and the roller holding members 36, 38, 66, The upper and lower forming rollers, etc., which have been used quickly and with a simple configuration, while avoiding an increase in the size of the device configuration in a manner that does not cause overlap in the introduction, feeding and discharge areas of the workpiece W when drawing 68, etc. After removing, another upper and lower forming rollers or the like can be attached.

  Further, the first locking mechanism 42 gives the upper roller holding members 36 and 38 a non-locking position below the locking position, and the second locking mechanism 72 sets the lower roller holding members 66 and 68 on the lower roller holding members 66 and 68. By providing a non-locking position above the locking position, the space between the upper and lower forming rollers 32, 62 and the introduction / feed / discharge area of the workpiece W is effectively utilized, and the apparatus has a large size. It is possible to attach both the upper and lower molding rollers and the like quickly after removing both the upper and lower molding rollers and the like which have been used quickly and with a simple configuration, while avoiding the need to make them easy.

  In addition, the upper forming roller 32 and the lower forming roller 62 cooperate with each other to roll on the workpiece W while the first locking mechanism 42 gives the upper roller holding members 36 and 38 a non-locking position. The upper molding roller 32 and the upper roller holding members 36 and 38 can be pulled out in a direction perpendicular to the feeding direction of the workpiece W when forming, and the second locking mechanism 72 is provided with the lower roller holding member. In a state where the non-locking positions are given to 66 and 68, the lower forming roller 62 and the lower roller holding members 66 and 68 can be pulled out in a direction perpendicular to the feed direction of the workpiece W to be moved up and down. Avoiding the enlargement of the apparatus configuration in such a manner that when the forming rollers 32, 62 and the roller holding members 36, 38, 66, 68 are pulled out, the introduction of the workpiece W, feeding and discharging into the discharge area do not occur more reliably. While Quickly, it is possible to attach the forming rollers or the like of another both above and below after removal of the forming rollers or the like of the upper and lower both that used a simple configuration.

  Further, since the first locking mechanism 42 is a mechanical locking mechanism and the second locking mechanism 72 is a lifting mechanism using pressure, the first locking mechanism 42 is optimal for both the upper and lower forming rollers 32 and 62. The locking position and the non-locking position can be given more reliably in the aspect, and after removing both the upper and lower forming rollers used in a simple configuration, the other upper and lower forming rollers are attached. be able to.

  In the present invention, the shape, arrangement, number, and the like of the members are not limited to the above-described embodiments, and the constituent elements thereof are appropriately replaced with those having the same operational effects, and the gist of the invention is not deviated. Of course, it can be appropriately changed within the range.

  As described above, in the present invention, there is provided a roll forming apparatus capable of attaching another forming roller and its related parts quickly after removing the used forming roller and its related parts with a simple configuration. Therefore, it is expected that it can be widely applied to the field of manufacturing a strength member of a vehicle body of a moving body such as a vehicle because of its general-purpose universal character.

DESCRIPTION OF SYMBOLS 1 ... Roll forming apparatus 10 ... Base 20 ... Frame 30 ... Upper roller unit 32 ... Upper forming roller 34 ... Upper auxiliary roller 36 ... Upper roller holder 38 ... Upper roller support 39 ... Upper insertion convex part 40 ... Upper roller support holder 41 ... Upper insertion groove 42 ... Cam lock mechanism 44 ... Cam 50 ... Upper rotating roller 60 ... Lower roller unit 62 ... Lower molding roller 64 ... Lower auxiliary roller 66 ... Lower roller holder 68 ... Lower roller support 69 ... Lower insertion groove 70 ... Lower roller Support holder 71 ... Lower insertion convex part 72 ... Elevating mechanism 74 ... Cylinder 75 ... Elevating piston 76 ... Piston receiving member 78 ... Lower rotating roller 100 ... Upper roller drive motor 102 ... Upper drive transmission shaft 104 ... Upper coupling 110 ... Lower roller Drive motor 112 ... lower drive transmission shaft 114 ... lower coupling 120 ... lower roller pressure motor 122 ... pressure From kinematic transmission shaft W ... processing target member C1 C6, CC ... rotary shaft

Claims (5)

An upper roller unit having an upper molding roller, an upper roller holding member that rotatably holds the upper molding roller, and an upper roller support holder that supports the upper roller holding member;
A lower forming roller that performs roll forming on a member to be processed in cooperation with the upper forming roller, a lower roller holding member that rotatably holds the lower forming roller, and a lower roller support holder that supports the lower roller holding member A lower roller unit having
A locking mechanism that gives different locking positions and non-locking positions in the vertical direction to at least one of the upper roller holding member and the lower roller holding member;
A roll forming apparatus comprising:
The locking mechanism is configured so that the upper molding roller and the lower molding roller cooperate with each other in a state where the non-locking position is given to the at least one of the upper roller holding member and the lower roller holding member. The upper forming roller and the upper roller holding member of the upper roller unit, and the lower forming roller of the lower roller unit in a direction intersecting the feeding direction of the processing target member when the roll forming is performed on the target member, and A roll forming apparatus that allows a corresponding one of the lower roller holding members to be pulled out. The locking mechanism is different in the vertical direction from the first locking mechanism that gives the upper roller holding member a locking position and a non-locking position with respect to the upper roller support holder that are different in the vertical direction. A second locking mechanism for providing a locking position and a non-locking position with respect to the lower roller support holder,
The first locking mechanism can pull out the upper forming roller and the upper roller holding member integrally in a direction crossing the feeding direction in a state where the unlocking position is given to the upper roller holding member. State
The second locking mechanism can pull out the lower forming roller and the lower roller holding member integrally in a direction intersecting the feeding direction in a state where the unlocking position is given to the lower roller holding member. The roll forming apparatus according to claim 1, wherein the roll forming apparatus is in a stable state. The first locking mechanism gives the upper roller holding member the unlocking position below the locking position,
The roll forming apparatus according to claim 2, wherein the second locking mechanism gives the lower roller holding member the non-locking position above the locking position. In the state where the first locking mechanism gives the non-locking position to the upper roller holding member, the upper molding roller and the lower molding roller cooperate to perform the roll molding on the workpiece. In a direction orthogonal to the feeding direction of the workpiece to be processed when applying, the upper molding roller and the upper roller holding member are in a state that can be pulled out,
The second locking mechanism is a state in which the lower forming roller and the lower roller holding member can be pulled out in a direction orthogonal to the feeding direction in a state where the unlocking position is given to the lower roller holding member. The roll forming apparatus according to claim 2 or 3.   5. The roll forming apparatus according to claim 2, wherein the first locking mechanism is a mechanical locking mechanism, and the second locking mechanism is an elevating mechanism using pressure.

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