JP2019098340A - Roll molding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roll forming apparatus capable of suppressing a decrease in durability performance of a forming blade due to a deviation of a relative rotation phase of a processing roll at the time of pre-adjustment. In this device, between machining rolls 13 and 14 in a state where a pair of machining rolls 13 and 14 are rotated through rotational drive of a first machining roll 13 by an electric motor 18 and meshing of gears 16 and 17. The work is processed and molded by passing it through the work. In the pre-adjustment, after the work is passed between the processing rolls 13 and 14 in a state where the gap is widened, the processing rolls 13 and 14 are rotated while moving the second processing roll 14 so as to narrow the gap. Each of the processing rolls 13 and 14 has a guide plate 34 integrally provided. The guide plates 34 of the second processing roll 14 are rotated by the rotational force of the guide plates 34 of the first processing roll 13, and the side surfaces of the guide plates 34 are slid so as to face each other in the rotation axis direction. [Selection diagram] Fig. 1

Description

  The present invention relates to a roll forming apparatus.

  The solid polymer fuel cell is provided therein with a separator for forming a flow path of fuel gas (for example, hydrogen gas) and a separator for forming a flow path for oxidant gas (for example, air) There is. Since these separators require high conductivity and rigidity, they are formed using a plate made of metal (e.g., titanium). And, the separator has unevenness on the surface.

  Conventionally, a roll forming apparatus used for forming such a separator has been proposed (for example, Patent Document 1). An example of a roll forming apparatus is shown in FIG. As shown in FIG. 7, the roll forming apparatus has a pair of processing rolls 100, 110 rotatably disposed at intervals. In the processing rolls 100 and 110, a part of the outer peripheral surface is a forming blade over the entire circumference, and the outer peripheral surfaces are disposed to face each other. The roll forming apparatus also includes an electric motor 120 connected to one of the processing rolls 100 for rotating the processing roll 100. Further, the main driving gear 130 is integrally provided on one processing roll 100 and the driven gear 140 is integrally provided on the other processing roll 110, and the main driving gear 130 and the driven gear 140 are engaged with each other.

  In forming the separator by the roll forming apparatus, the processing roll 100 is rotationally driven through the operation of the electric motor 120, and the processing roll 110 is rotated through the engagement of the main driving gear 130 and the driven gear 140. In that state, as shown in FIG. 8, the uneven pattern on the surface of the forming blade of the processing rolls 100 and 110 is transferred to the work W by passing the work W made of a plate material between the processing rolls 100 and 110. .

JP, 2016-7637, A

In the above-mentioned roll forming apparatus, it is conceivable to perform the prior adjustment of the same apparatus before the start of forming the separator as follows.
First, in a state where one processing roll 100 and the other processing roll 110 are separated, the workpiece W is passed between the processing rolls 100 and 110. Thereafter, while moving the one processing roll 110 while applying pressure so as to approach the other processing roll 100, the electric motor 120 is operated to rotate each processing roll 100, 110. Thus, in a state in which the work W is sandwiched between the processing rolls 100 and 110, the processing rolls 100 and 110 are brought close to each other while suppressing that the load applied to the forming blade of the processing rolls 100 and 110 is rapidly increased. It is possible to move until the interval.

  However, as shown in FIGS. 9 (a) and 9 (b), in advance of such adjustment of the roll forming apparatus, only the amount by which the processing rolls 100 and 110 are separated (the amount indicated by G0 in FIG. 9). Since the engagement between the main driving gear 130 and the driven gear 140 becomes shallow, when the processing rolls 100 and 110 are rotated, the rotational phases of the processing rolls 100 and 110 are easily shifted.

  As shown in FIGS. 10 (a) and 10 (b), when a shift occurs in the rotational phase of the processing roll 100, 110, the relative rotational phase of each part of the surface of the forming blade 100A, 110A (for example, one forming blade 100A) Relative rotational phase) between the convex portion of the first and the concave portion of the other forming blade 110A. Therefore, a portion where the gap between the surfaces of the forming blades 100A and 110A is narrow (a gap G1 in FIG. 10 (b)) and a portion where a gap is wide (a gap G2 in FIG. 10 (b)) are formed. In this case, in a portion where the gap between the surfaces of the forming blades 100A and 110A is narrow, the load applied to the surfaces of the forming blades 100A and 110A becomes unnecessarily large, so the durability of the forming blades 100A and 110A by this is increased. There is a risk of performance degradation.

  The present invention has been made in view of such circumstances, and its object is to provide a roll forming apparatus capable of suppressing a decrease in durability of a forming blade caused by a shift in relative rotational phase of a processing roll at the time of advance adjustment. It is to provide.

  The roll forming apparatus for solving the above-mentioned subject is arranged such that outer peripheral surfaces face each other, and a part of the outer peripheral surface forms a forming blade, and one of the pair of processing rolls. A main driving gear integral with the processing roll, a driven gear integrally engaged with the main driving gear with the other processing roll of the pair of processing rolls, and the one processing roll connected to the one processing roll to rotationally drive the same processing roll A driving source, and rotating the pair of processing rolls through rotational driving of the one processing roll by the driving source and engagement of the main moving gear and the driven gear; The work is passed between to process and form the same work, and the pre-adjustment prior to the work formation passes the work between the pair of work rolls with the gap widened. A roll forming apparatus configured to rotate the pair of processing rolls while moving at least one of the pair of processing rolls so as to narrow the gap, and extends over the entire circumference of the processing rolls It has a guide plate provided integrally with each of the pair of processing rolls so as to protrude annularly, and the guide plate of the other processing roll by the rotational force of the guide plate of the one processing roll. Side surfaces of the guide plates are opposed and slide in the extending direction of the rotation axis of the pair of processing rolls.

  In the above-described configuration, basically, rotation is performed by the drive source through meshing between the main driving gear integral with one of the pair of processing rolls (first processing roll) and the driven gear integral with the other (second processing roll). The rotational force of the driven first processing roll is transmitted to the second processing roll to rotate the processing rolls.

  In the roll forming device of the comparative example in which the transmission of the rotational force from the first work roll to the second work roll is performed only by the meshing of the gears, the meshing between the main moving gear and the driven gear becomes shallow when preadjustment is performed. If the gap becomes large, the rotational phase of the driven gear (second processing roll) is easily shifted in the direction of delaying the rotational phase of the main driving gear (first processing roll).

  In this respect, in the above configuration, in addition to the transmission of the rotational force from the first processing roll to the second processing roll being performed by the engagement of the main driving gear and the driven gear, a guide plate integrated with the first processing roll It is also performed by sliding (cooperating) with the guide plate integral with the second processing roll. Therefore, when the meshing between the main driving gear integral with the first work roll and the driven gear integral with the second work roll becomes shallow during the preliminary adjustment of the roll forming apparatus, the rotational force of each guide plate is the first work roll. Can be used as a member for transmitting the second processing roll. Thereby, compared with the roll forming apparatus in which the guide plate is not provided, the rotational phase of the second processing roll (main driving gear) is prevented from being shifted so as to be delayed with respect to the rotational phase of the first processing roll (main driving gear). be able to. Therefore, it is possible to suppress the decrease in the durability performance of the forming blade due to the deviation of the relative rotational phase of the processing roll at the time of the preliminary adjustment.

  In the above-mentioned roll forming apparatus, two of the guide plates are provided on each of the pair of processing rolls so as to be spaced apart in the direction in which the rotation axis extends, and the pair of processing rolls are those Preferably, the two guide plates integral with one of the processing rolls are disposed in such a manner as to be sandwiched by the two guide plates integral with the other.

  In the above configuration, in order to realize the forming of the work with high accuracy, the relative position between the forming blade of the first processing roll and the forming blade of the second processing roll in the direction in which the rotation axis extends must be accurately determined. However, the task of determining this relative position is likely to be complicated. According to the above configuration, the relative operation can be performed by a simple operation such as disposing the two guide plates provided on one processing roll so as to sandwich the two guide plates provided on the other processing roll. The position can be accurately determined.

  In the above-described roll forming apparatus, a part of the opposing surfaces of the guide plate integral with the one work roll and the guide plate integral with the other work roll are directed toward the tip end of the guide plate. It is preferable to form a tapered shape in which the gap between the facing surfaces is wide.

  According to the above configuration, the work of arranging both working rolls so as to sandwich the two guiding plates provided on one working roll between the two guiding plates provided on the other working roll is a tapered shape of the guide plates It can be done smoothly while being guided by the part.

  In the above-mentioned roll forming apparatus, the processing roll has a roll blade which is fitted on the same rotation shaft as the rotation shaft and whose outer peripheral surface has the forming blade and the guide plate, and the rotation shaft and the roll blade It is preferable that the structure be capable of assembling and disassembling the guide plate with the guide plate.

  According to the above-mentioned configuration, by replacing the roll blade of each processing roll, it is possible to mold molded articles having different uneven patterns on the surface and molded articles having different sizes by the same device. And when attaching such a processing roll to an apparatus, the operation | work which adjusts the relative position in the direction to which the rotating shaft of each processing roll extends can be performed easily using a guide plate.

  In the roll forming apparatus, the outer diameter of the forming blade of the one work roll and the outer diameter of the forming blade of the other work roll are the same, and the guide plate of the one work roll and the other It is preferable that a movement locus of a portion of the processing roll which slides with the guide plate has the same shape in the guide plates.

  In the above configuration, in order to suppress a shift in relative rotational phase of the pair of processing rolls at the time of preliminary adjustment, the rotational speeds of the pair of processing rolls may be the same. According to the above configuration, the guide plates are provided on the respective processing rolls so that the movement trajectories of the sliding parts are the same, and the guide plates slide (cooperation) so that the rotational speeds of the pair of processing rolls It is possible to make it identical. Therefore, the shift of the relative rotational phase of each processing roll at the time of advance adjustment can be suppressed with a simple structure.

  ADVANTAGE OF THE INVENTION According to the roll forming apparatus of this invention, the fall of the durable performance of the shaping | molding blade resulting from the shift | offset | difference of the relative rotational phase of the process roll at the time of prior adjustment can be suppressed.

The front view of the roll forming apparatus of one Embodiment. The schematic which shows the arrangement | positioning aspect of a process roll and an auxiliary | assistant roll. An exploded view of each processing roll. (A) is a schematic view showing the positional relationship between the main drive gear and the driven gear at the start of the pre-adjustment, (b) is a schematic view showing the positional relationship between the main drive gear and the following gear at the time of forming the work; ) Is a schematic diagram showing an example of the positional relationship of each guide plate. The expanded sectional view of the opposing part of each roll blade at the time of pre-adjustment. The expanded sectional view of the contact part of a guide plate. The front view of the conventional roll forming apparatus. Explanatory drawing of the shaping | molding aspect of a workpiece | work. (A) of the conventional roll forming apparatus is a schematic view showing the positional relationship between the main driving gear and the driven gear at the start of the preadjustment, and (b) is a schematic view showing the positional relation between the main driving gear and the following gear during the preadjustment. . (A) of the conventional roll forming apparatus is an expanded sectional view of the opposing part of each shaping | molding blade at the time of prior adjustment start, (b) is an expanded sectional view of the opposing part of each shaping | molding blade in advance adjustment.

Hereinafter, an embodiment of a roll forming apparatus will be described.
As shown in FIG. 1, the roll forming apparatus 10 has a base 11 and a pair of support columns 12 erected on the base 11. The support posts 12 extend in the vertical direction (vertical direction in FIG. 1) and are spaced apart in the horizontal direction (horizontal direction in FIG. 1).

  A first processing roll 13 and a second processing roll 14 are bridged between the pair of support columns 12. The work rolls 13 and 14 are rotatably supported on the support column 12 via bearings so as to extend in parallel in the vertical direction at intervals. The processing rolls 13 and 14 extend in the horizontal direction, and are arranged such that outer peripheral surfaces thereof face each other. A part of the outer peripheral surface of each of the processing rolls 13 and 14 (more specifically, a central portion in the direction in which the rotation axis extends [hereinafter, the rotation axis direction]) is a forming blade 15.

  The main movement gear 16 is integrally provided at the base end of the first processing roll 13, and the driven gear 17 is integrally provided at the base end of the second processing roll 14, and the main movement gear 16 and the driven gear 17 are engaged with each other. ing. Further, an output shaft of an electric motor 18 as a driving source is connected to a base end of the first processing roll 13. In the present embodiment, the first processing roll 13 and the second processing roll 14 are made in the opposite direction at the same speed through the rotational drive of the first processing roll 13 by the operation of the electric motor 18 and the meshing of the main gear 16 and the driven gear 17. It is possible to rotate.

  Further, a first auxiliary roll 19 and a second auxiliary roll 20 are provided between the pair of support columns 12. The auxiliary rolls 19 and 20 are arranged at intervals between the processing rolls 13 and 14 at intervals between the processing rolls 13 and 14. Each of the auxiliary rolls 19 and 20 extends horizontally in a substantially circular shape in cross section, and is supported rotatably and vertically movable with respect to the support column 12.

  As shown in FIG. 2, the first auxiliary roll 19 is disposed below the processing rolls 13 and 14, and the second auxiliary roll 20 is disposed above the processing rolls 13 and 14. Further, on a straight line L connecting the rotation axis C3 of the first processing roll 13 and the rotation axis C2 of the second processing roll 14, the rotation axis C4 of the first auxiliary roll 19 and the rotation axis C1 of the second auxiliary roll 20 are The auxiliary rolls 19 and 20 are disposed to be disposed respectively.

  As shown in FIG. 1, the roll forming apparatus 10 includes a first cylinder 19A, which is an actuator for pressing the first auxiliary roll 19 upward, and an actuator, which is for pressing the second auxiliary roll 20 downward. And 2 cylinders 20A. In the roll forming apparatus 10, by operating the first cylinder 19A, the outer surface of the first auxiliary roll 19 can press the first processing roll 13 upward at a predetermined pressure, and the second cylinder By operating 20 A, the outer surface of the second auxiliary roll 20 can press the second processing roll 14 downward at a predetermined pressure.

  Each support column 12 has a fixed column 12A fixed to the base 11 and extending in the vertical direction, and a moving part 12B provided vertically movable above the fixed column 12A. In the present embodiment, the first work roll 13 and the first auxiliary roll 19 are provided between the fixed columns 12A of each support column 12, and the second work roll 14 and the second auxiliary roll 20 are provided in each support column 12. It is provided between the moving parts 12B. And in this embodiment, the position of the up-and-down direction of the moving part 12B (the 2nd processing roll 14 and the 2nd auxiliary roll 20) can be changed through operation control of the actuator (illustration abbreviation) connected with moving part 12B. There is. Specifically, the moving unit 12B is moved to a forming position suitable for forming by the roll forming device 10, or a pre-adjustment position suitable for pre-adjustment of the roll forming device 10 (specifically, above the forming position) It is possible to move to the side position).

The roll forming device 10 of the present embodiment is used to form a separator of a fuel cell.
The forming of the separator by the roll forming apparatus 10 is performed by setting the moving portion 12B to the forming position and rotating the processing rolls 13 and 14, and then setting the work made of a plate material made of metal (for example, titanium) as the first processing roll The work is formed by passing it between the forming blade 13 of FIG. 13 and the forming blade 15 of the second processing roll 14 and processing the same. At this time, the concavo-convex pattern on the surface of the forming blade 15 of each of the processing rolls 13 and 14 is transferred to the work.

  Further, prior to the formation of the separator by the roll forming apparatus 10, the pre-adjustment is performed as follows. First, the movement position of the moving unit 12B (the second processing roll 14) is set to the above-described pre-adjustment position, and the gap between the processing rolls 13 and 14 (the forming blades 15) is widened. In this state, the work is passed between the processing rolls 13 and 14, and the moving unit 12B (second processing roll 14) is gradually moved to the forming position while rotating the processing rolls 13 and 14.

Hereinafter, specific structures of the first processing roll 13 and the second processing roll 14 will be described.
In addition, since the component of the 1st process roll 13 and the component of the 2nd process roll 14 are the same basic structures, below, the same code | symbol is attached | subjected and demonstrated to these components.

  As shown in FIGS. 1 and 3, each processing roll 13, 14 has a rotating shaft 31. The rotary shaft 31 is integrally formed with a round bar portion 31A extending in a circular shape in cross section and a rib 31B of a shape (large diameter) whose outer diameter is larger than that of the round bar portion 31A.

  Each of the processing rolls 13 and 14 has a cylindrical roll blade 32 on the outer peripheral surface of which the forming blade 15 is formed. The roll blade 32 is a plurality of (for example, 1000) sheets in a state where the thickness of a disk-like thin plate (for example, about 0.1 mm in thickness) having irregularities (forming blades) formed on the outer peripheral surface is adjusted one by one. It will be stacked. In the present embodiment, the outer diameter of the roll blade 32 of the first processing roll 13 and the outer diameter of the roll blade 32 of the second processing roll 14 are the same. Further, in the present embodiment, the surface concave portion of one roll blade 32 of the processing rolls 13 and 14 and the surface convex portion of the other roll blade 32 face each other at a predetermined interval. The surface shape is determined, and the roll blades 32 are disposed.

  Each of the processing rolls 13 and 14 has two support plates 33 integrally provided on each of the processing rolls 13 and 14 so as to protrude annularly over the entire circumference. Each support plate 33 is formed in a disk shape having a diameter larger than that of the roll blade 32, and is fixed to the rotary shaft 31 at a position sandwiching the roll blade 32 in the rotational axis direction (left and right direction in FIG. 3) There is. Then, in the roll forming apparatus 10 (FIG. 1), the outer peripheral surface of each support plate 33 of the first processing roll 13 abuts on the outer peripheral surface of the first auxiliary roll 19, and each support plate 33 of the second processing roll 14. The outer peripheral surface of the second auxiliary roll 20 is in contact with the outer peripheral surface of the second auxiliary roll 20. In the present embodiment, the support plates 33 of the first processing roll 13 and the support plates 33 of the second processing roll 14 are arranged at intervals in the rotational axis direction so as not to contact each other.

  In the present embodiment, the auxiliary rolls 19 and 20 and the support plate 33 may need to be replaced due to wear and the like accompanying use. In that case, it is more cost effective to replace the support plate 33 than to replace the auxiliary rolls 19 and 20. Therefore, it is desirable that the support plate 33 wears rather than the auxiliary rolls 19 and 20 wear so much. Based on this, in the present embodiment, each support plate 33 is formed of a material with low wear resistance (eg, carbon steel [S45C]). Further, in the present embodiment, since the outer peripheral surface of the support plate 33 is pressed by the outer peripheral surfaces of the auxiliary rolls 19 and 20, it is desirable that the rigidity of the support plate 33 be high. Therefore, each support plate 33 is formed in a relatively thick shape (for example, 20 mm) in the rotation axis direction.

  Each of the processing rolls 13 and 14 has two guide plates 34 integrally provided on each of the processing rolls 13 and 14 so as to protrude annularly over the entire circumference. Each guide plate 34 is formed in a disk shape having a larger diameter than the roll blade 32 and a smaller diameter (small diameter) than the support plate 33, and the roll blade 32 and the two support plates in the rotational axis direction It is fixed to the rotating shaft 31 at a position sandwiching 33. The guide plates 34 are not in contact with the outer peripheral surfaces of the auxiliary rolls 19 and 20 at their outer peripheral surfaces, and are spaced from the support plates 33 in the rotational axis direction so as not to contact the support plates 33. It is provided.

  Each guide plate 34 is provided on each processing roll 13, 14 so that the two guide plates 34 of the first processing roll 13 sandwich the two guide plates 34 of the second processing roll 14. . As a result, the side surface of the guide plate 34 of the first processing roll 13 and the side surface of the guide plate 34 of the second processing roll 14 are pressed against each other in the rotational axis direction and in contact with each other. Therefore, in the present embodiment, when the first processing roll 13 is rotationally driven by the operation of the electric motor 18 (FIG. 1), the guide plate of the first processing roll 13 causes the guide plate of the second processing roll 14 to rotate. The side surfaces of the guide plate 34 of each of the processing rolls 13 and 14 are opposed and slide in the rotational axis direction in a mode in which the motor 34 is rotated (linked).

  In the present embodiment, as the guide plate 34 of each of the processing rolls 13 and 14, one having the same shape (disk shape) is provided. Therefore, when the side surfaces of the guide plates 34 slide when the work rolls 13 and 14 rotate, the movement locus of the sliding portion of the guide plate 34 of the first work roll 13 (see T1 in FIG. 4C). And the movement locus of the sliding portion of the guide plate 34 of the second processing roll 14 (indicated by T2 in FIG. 4C) have the same shape (annular shape).

  In the present embodiment, the guide plates 34 have a function of transmitting a rotational force through sliding with each other and a function of determining the relative position of the processing rolls 13 and 14 in the rotational axis direction through contact with each other. In order to maintain these functions over a long period of time, it is preferable that each guide plate 34 be resistant to wear. In light of this point, in the present embodiment, each guide plate 34 is formed of a material (for example, alloy tool steel [SKD]) having high wear resistance as compared with the material of the support plate 33. Further, in the present embodiment, since the side surfaces of the guide plates 34 slide against each other in the rotational axis direction, the thickness required for the guide plates 34 is determined by the auxiliary rolls 19 and 20 on the outer peripheral surface. It can be said that the thickness is smaller than the thickness required for each support plate 33 of the structure to be pressed. Therefore, in the present embodiment, each guide plate 34 is formed in a relatively thin shape (for example, 10 mm) in the rotation axis direction with the thickness of the support plate 33.

  Each processing roll 13, 14 has a plurality of collars 35 (FIG. 3). These collars 35 are formed in a disk shape or a cylindrical shape having a through hole at the center, and are provided on the rotary shaft 31 in a state in which the rotary shaft 31 is inserted into the through hole. Each collar 35 has a function of adjusting the position of the roll blade 32, the support plate 33, and the guide plate 34 with respect to the rotation shaft 31 in the rotation axis direction (left and right direction in FIG. 3). The shape of each collar 35 (specifically, the thickness in the rotational axis direction) is determined separately so that the fixed position of the roll blade 32, the support plate 33, and the guide plate 34 with respect to the rotary shaft 31 is the above-mentioned position. ing.

  Each processing roll 13, 14 has a nut 36. The nut 36 is disposed so as to sandwich the roll blade 32, the two support plates 33, the two guide plates 34, and the plurality of collars 35 with the rib 31B of the rotary shaft 31, and the male screw on the outer surface of the rotary shaft 31 It is screwed into (not shown). The roll forming apparatus 10 has a structure that allows assembling and disassembling of the processing rolls 13 and 14 through the attachment and detachment of the nut 36.

  When assembling each processing roll 13, 14, first, the roll blade 32, the two support plates 33, the two guide plates 34, and the plurality of collars 35 are inserted into the round bar portion 31A of the rotating shaft 31. Then, the nut 36 is attached to the rotating shaft 31 in that state. As a result, the roll blade 32, the two support plates 33, the two guide plates 34, and the plurality of collars 35 are held between the rib 31B and the nut 36 and fixed to the rotary shaft 31 (see FIG. 1).

  On the other hand, when disassembling the work rolls 13 and 14, the nut 36 is loosened and removed from the rotating shaft 31 together with the roll blade 32, the two support plates 33, the two guide plates 34, and the plurality of collars 35. As a result, the roll blade 32, the two support plates 33, the two guide plates 34, and the plurality of collars 35 are removed from the round bar portion 31A of the rotary shaft 31 (the state shown in FIG. 3).

Hereinafter, the operation and effect of the roll forming device 10 will be described.
FIG. 4 (a) schematically shows the positional relationship between the main driving gear 16 and the driven gear 17 at the start of the preliminary adjustment of the roll forming apparatus 10. FIG. 4 (b) shows the main movement at the time of forming the separator by the roll forming apparatus 10. The positional relationship between the gear 16 and the driven gear 17 is schematically shown, and an example of the positional relationship between the guide plates 34 is shown in FIG. 4 (c).

  As shown in FIGS. 4 (a) and 4 (b), in the roll forming device 10, basically, the main driving gear 16 integrated with the first processing roll 13 and the driven gear 17 integrated with the second processing roll 14 The rotational force of the first processing roll 13 rotationally driven by the electric motor 18 (see FIG. 1) is transmitted to the second processing roll 14 through the engagement with the second processing roll 14. And thereby, each processing roll 13 and 14 comes to rotate.

  Here, if the transmission of the rotational force from the first work roll 13 to the second work roll 14 is performed only by the meshing of the main driving gear 16 and the driven gear 17, the following problems occur. That is, when the meshing between the main driving gear 16 and the driven gear 17 becomes shallow in advance of the adjustment of the roll forming apparatus, the gap between the gears 16 and 17 becomes large, and the main driving gear 16 (first processing roll 13) The rotational phase of the driven gear 17 (second processing roll 14) is easily shifted in the direction to be delayed with respect to the rotational phase of. Then, if the rotational phase of each processing roll 13, 14 (specifically, the forming blade 15) is shifted, an unnecessary large load is applied to the forming blade 15 during the forming process of the work. Cause a decrease in

  In this respect, in the roll forming apparatus 10 of the present embodiment, transmission of the rotational force from the first processing roll 13 to the second processing roll 14 is performed in addition to the engagement between the main driving gear 16 and the driven gear 17. As shown in FIG. 4C, interlocking of the respective guide plates 34 by the sliding of the guide plate 34 of the first processing roll 13 and the guide plate 34 of the second processing roll 14 is also performed. Therefore, when the meshing between the main operating gear 16 of the first processing roll 13 and the driven gear 17 of the second processing roll 14 becomes shallow (the state shown in FIG. 4A) when the roll forming apparatus 10 is adjusted in advance. Each guide plate 34 can be used as a member for transmitting the rotational force of the first processing roll 13 to the second processing roll 14.

  As a result, as shown in an example in FIG. 4A, although the tooth flanks of the main driving gear 16 and the tooth flanks of the driven gear 17 are separated in the process of executing the preliminary adjustment of the roll forming device 10, The processing rolls 13 and 14 can be rotated (linked) through the sliding of the guide plates 34 (FIG. 4C) without the engagement of the parts 16 and 17. Therefore, the rotational phase of the second processing roll 14 (follower gear 17) is prevented from being delayed with respect to the rotational phase of the first processing roll 13 (the main driving gear 16).

  Therefore, as shown in FIG. 5, the relative rotational phase of each portion of the surface of the roll blade 32 (specifically, the forming blade 15) of each processing roll 13, 14 (for example, the surface concave of one forming blade 15 and the other forming blade It is possible to suppress the shift of the relative rotational phase) with respect to the surface convex portion 15. As a result, it becomes difficult to form a portion where the gap between the surfaces of the forming blade 15 (indicated by GP in the figure) is narrow, ie, a portion where the load applied to the surface of the forming blade 15 becomes unnecessarily large. It is possible to suppress the decrease in performance.

  As described above, according to the present embodiment, it is possible to suppress the decrease in the durability performance of the forming blade 15 caused by the shift in the relative rotational phase of the processing rolls 13 and 14 at the time of the preliminary adjustment of the roll forming device 10.

  In the present embodiment, the outer diameter of the roll blade 32 of the first processing roll 13 and the outer diameter of the roll blade 32 of the second processing roll 14 are the same. Therefore, in order to suppress the shift of the relative rotational phase of each processing roll 13 and 14 at the time of the prior adjustment of the roll forming apparatus 10, the rotational speeds of the processing rolls 13 and 14 should be the same.

  In this respect, according to the present embodiment, when the side surfaces of the guide plate 34 of each of the processing rolls 13 and 14 slide, the movement locus of the sliding portion of the guide plate 34 of the first processing roll 13 (FIG. 4) and the movement locus of the sliding portion of the guide plate 34 of the second processing roll 14 (indicated by T2 in FIG. 4C) have the same shape (annular shape). As a result, the guide plates 34 having the same shape (more specifically, the movement trajectory of the sliding portion is the same) can be made to slide and interlocked, and therefore, each processing roll 13 can be easily adopted by adopting a simple structure. It is possible to make the rotational speeds of 14 approximately the same. And thereby, the shift of the relative rotation phase of each processing roll 13, 14 at the time of prior adjustment of the roll forming apparatus 10 can be suppressed.

  Further, in the roll forming apparatus 10, relative positions of the roll blade 32 of the first processing roll 13 and the roll blade 32 of the second processing roll 14 in the rotational axis direction (more specifically, in order to realize the forming of the work with high accuracy The relative position between the surface concave portion of one roll blade 32 of the processing rolls 13 and 14 and the surface convex portion of the other roll blade 32 must be accurately determined. And although it is conceivable to separately perform, for example, the following (operation A), (operation B), (operation C) and (operation D), for example, such a series of operations is complicated.

(Operation A) The fixing position of the roll blade 32 in the first processing roll 13 is adjusted.
(Operation B) The fixing position of the roll blade 32 in the second processing roll 14 is adjusted.
(Operation C) The mounting position of the first processing roll 13 with respect to the fixed columns 12A of the pair of support columns 12 is adjusted.

(Operation D) The mounting position of the second processing roll 14 with respect to the moving part 12B of the pair of support columns 12 is adjusted.
In this respect, in the roll forming apparatus 10 of the present embodiment, the two processing plates 13 and 14 are provided on the second processing roll 14 by the two guide plates 34 provided on the first processing roll 13. Are arranged in a manner to sandwich the Therefore, the relative position between the roll blade 32 of the first processing roll 13 and the roll blade 32 of the second processing roll 14 can be accurately determined through the following operation. First, the relative position of the roll blade 32 and the guide plate 34 is adjusted when assembling the processing rolls 13 and 14. Then, when attaching the processing rolls 13 and 14 to the pair of support columns 12, the two guide plates 34 of the second processing roll 14 are sandwiched between the two guide plates 34 of the first processing roll 13.

  As described above, according to the roll forming apparatus 10, both processing rolls 13, 14 are disposed so as to sandwich the pair of guide plates 34 of the second processing roll 14 between the pair of guide plates 34 of the first processing roll 13. The relative position in the rotation axis direction of the roll blade 32 of each of the processing rolls 13 and 14 can be determined with high accuracy without performing (operation A) to (operation D) with such a simple operation.

  In addition, in the case of arranging such both processing rolls 13 and 14, if an unnecessarily large force may act on the surface of the guide plate 34, the surface of the guide plate 34 is deformed. In this case, the rotational axes C2 and C3 (see FIG. 2) of the processing rolls 13 and 14 may be deviated from the normal position or the like, which may lower the formation accuracy of the unevenness on the surface of the workpiece.

  In this respect, in the roll forming apparatus 10 of the present embodiment, as shown in FIG. 6, the opposing surfaces 13A, 14A of the guide plate 34 of the first processing roll 13 and the guide plate 34 of the second processing roll 14 are guide plates. The tapered shape is such that the distance between the facing surfaces 13A and 14A is increased toward the tip (outer edge) of 34. Specifically, a portion (sliding portion 34A) on which the guide plates 34 slide in the opposing surfaces 13A and 14A of the guide plates 34 is a flat surface, and a portion on the outer edge side of the sliding portion 34A (guide portion 34B) has a tapered surface.

  Therefore, when the pair of guide plates 34 of the second processing roll 14 is sandwiched between the pair of guide plates 34 of the first processing roll 13 as shown by the black arrows in FIG. The contact between the members 34B causes the guide plates 34 of the work rolls 13 and 14 to be guided to the normal position in the rotational axis direction. As a result, the processing rolls 13 and 14 can be attached to the pair of support columns 12 while suppressing a large force acting on the surface of the guide plate 34.

  As described above, according to the present embodiment, the pair of guide plates 34 of the second processing roll 14 is sandwiched between the pair of guide plates 34 of the first processing roll 13 to support the pair of processing rolls 13 and 14. The work of attaching to the column 12 can be smoothly performed while being guided by the tapered portion (guide portion 34B) of the guide plate 34.

  Furthermore, in the roll forming apparatus 10, when the load applied to each processing roll 13, 14 in forming the work becomes large, the processing rolls 13, 14 bend in the direction in which the processing rolls 13, 14 separate from each other. There is a possibility that the formation accuracy of the unevenness of the work surface may be lowered.

  In the present embodiment, by supporting the processing rolls 13 and 14 by the pair of auxiliary rolls 19 and 20 and the support plate 33, bending of the processing rolls 13 and 14 is suppressed. More specifically, as shown in FIGS. 1 and 2, the positions at which the two support plates 33 of the first processing roll 13 are provided, that is, the positions where the roll blade 32 is sandwiched (indicated by F3 and F4 in FIG. 1). Position) is pressurized upward by the first auxiliary roll 19 through the operation of the first cylinder 19A. In addition, the position at which the two support plates 33 in the second processing roll 14 are disposed, that is, the position where the roll blade 32 is sandwiched (the positions shown by F1 and F2 in FIG. 1) is the operation of the second cylinder 20A. The second auxiliary roll 20 is pressed downward. Thereby, each auxiliary roll 19, each processing roll 13, 14 (specifically, positions F 1, F 2, F 3, F 4) are arranged from the outside in the alignment direction (vertical direction in FIG. 1) of the pair of processing rolls 13, 14 It is supported by being pinched by 20.

  Therefore, when a load is applied to each of the processing rolls 13 and 14 in forming the work, the processing rolls 13 and 14 are bent in the direction in which the processing rolls 13 and 14 (specifically, the forming blade 15 thereof) separate from each other. Can be suppressed. As a result, since the change in the clearance between the processing rolls 13 and 14 can be suppressed, the workpiece can be formed with high accuracy.

  In addition, in order to suppress bending of each processing roll 13 and 14, it is also considered to employ | adopt the structure which supports the surface of the roll blade 32 (forming blade 15) by the auxiliary | assistant roll 19 and 20. FIG. In such an apparatus, since the tip end of the precise forming blade 15 is pressed by the auxiliary rolls 19 and 20, deformation (deterioration) of the forming blade 15 is easily caused, and durability of each processing roll 13 and 14 can be improved. It may cause a decline. The roll forming apparatus 10 according to the present embodiment has a structure in which the support plate 33 integral with the roll blade 32 is supported by the auxiliary rolls 19 and 20. Therefore, the durability performance of the processing rolls 13 and 14 (more specifically, the roll blade 32) The bending of each processing roll 13, 14 can be suppressed without causing a drop in

As described above, according to the present embodiment, the effects described below can be obtained.
(1) A guide plate 34 integrally provided on each of the processing rolls 13 and 14 is provided so as to protrude annularly over the entire circumference of the processing rolls 13 and 14. Then, in a mode in which the guide plate 34 of the second processing roll 14 is rotated by the rotational force of the guide plate 34 of the first processing roll 13, the side surfaces of the guide plates 34 slide opposite to each other in the rotational axis direction. Therefore, it is possible to suppress the decrease in the durability performance of the forming blade 15 caused by the shift in the relative rotational phase of the processing rolls 13 and 14 at the time of the preliminary adjustment of the roll forming apparatus 10.

  (2) The guide plates 34 are provided on the processing rolls 13 and 14 so that the two guide plates 34 of the first processing roll 13 sandwich the two guide plates 34 of the second processing roll 14 There is. Therefore, each processing roll is a simple operation such as arranging the processing rolls 13 and 14 so as to sandwich the pair of guide plates 34 of the second processing roll 14 between the pair of guide plates 34 of the first processing roll 13. The relative positions of the 13 and 14 roll blades 32 in the rotational axis direction can be accurately determined.

  (3) As the opposing surfaces 13A and 14A of the guide plate 34 of the first processing roll 13 and the guide plate 34 of the second processing roll 14 move toward the end of the guide plate 34, the distance between the opposing surfaces 13A and 14A is It has a tapered shape that is far away. Therefore, as the pair of guide plates 34 of the second processing roll 14 is sandwiched between the pair of guide plates 34 of the first processing roll 13, the work of attaching both processing rolls 13, 14 to the pair of support columns 12 is guided It can be smoothly performed while being guided by the tapered portion (guide portion 34B) of the plate 34.

  (4) The processing rolls 13 and 14 are structured such that the rotary shaft 31, the roll blade 32, the support plate 33, the guide plate 34 and the collar 35 can be assembled and disassembled. As a result, by replacing the roll blades 32 of the work rolls 13 and 14, it is possible to form separators having different uneven patterns on the surface and separators having different sizes by the same device. Moreover, when the component of each process roll 13 and 14 degrades, only the degraded component can be replaced | exchanged. Furthermore, when attaching such a processing roll 13 and 14 to an apparatus, the work which adjusts the relative position in the rotating shaft direction of the roll blade 32 of each processing roll 13 and 14 is provided two each for each processing roll 13 and 14 This can be easily performed by using the guide plate 34.

  (5) The outer diameter of the roll blade 32 of the first processing roll 13 and the outer diameter of the roll blade 32 of the second processing roll 14 are the same. In addition, when the side surfaces of the guide plates 34 of the work rolls 13 and 14 slide, the movement locus of the sliding portion of the guide plate 34 of the first work roll 13 and the slide of the guide plates 34 of the second work roll 14 The movement trajectory of the part has the same shape. Therefore, it becomes possible to make rotation speed of each processing roll 13 and 14 substantially identical with a simple structure.

<Modification>
The above embodiment may be modified as follows.
The positional relationship between the guide plate 34 of the first processing roll 13 and the guide plate 34 of the second processing roll 14 in the rotational axis direction can be arbitrarily changed. For example, each of the processing rolls 13 and 14 is arranged such that each guide plate 34 is sandwiched between two guide plates 34 provided on the first processing roll 13 by two guide plates 34 provided on the second processing roll 14. Can be provided. In addition, it is also possible to arrange the guide plate 34 of the first processing roll 13 and the guide plate 34 of the second processing roll 14 so as to be alternately arranged in the rotation axis direction.

  A guide plate 34 may be provided on each of the processing rolls 13 and 14 one by one. In this case, the respective working rolls 13 and 14 are attached so that the side face of the guide plate 34 of the first work roll 13 and the side face of the guide plate 34 of the second work roll 14 abut each other in the rotational axis direction. It becomes possible to determine the relative position of the roll blade 32 of the processing rolls 13 and 14.

  · A portion (guide portion) on the outer edge side of the sliding surfaces 34A of the facing surfaces 13A and 14A of the guide plate 34 of each processing roll 13 and 14 is a flat surface portion and a sliding portion of a flat shape disposed on the outer edge side You may comprise by the taper-shaped taper part arrange | positioned at 34A side.

  The shape of each guide plate 34 is not limited to the disk shape, and can be changed to any shape. In this case, when the side surfaces of the guide plates 34 of the processing rolls 13 and 14 slide, the movement trajectory of the sliding portion of the guide plate 34 of the first processing roll 13 and the guide plate 34 of the second processing roll 14 It is preferable that the movement locus of the sliding portion has the same shape.

The entire facing surfaces 13A and 14A of the guide plates 34 of the processing rolls 13 and 14 may have a planar shape.
-As each processing roll 13 and 14, what can not assemble or disassemble, ie, what formed the rotating shaft 31, the roll blade 32, the support plate 33, and the guide plate 34 integrally, is employable.

  · Each auxiliary roll 19 such that the rotation axes C1 and C4 of each auxiliary roll 19 and 20 are disposed at a position deviated from the straight line L connecting the rotation axes C2 and C3 of the processing rolls 13 and 14 (see FIG. 1). , 20 may be provided. The arrangement position of the auxiliary rolls 19 and 20 may be determined in accordance with the bending direction of the processing rolls 13 and 14 when forming the work.

The first auxiliary roll 19, the second auxiliary roll 20, and the support plate 33 may be omitted.
· The movement locus of the sliding portion of the guide plate 34 of the first processing roll 13 and the sliding of the guide plate 34 of the second processing roll 14 when the side surfaces of the guide plate 34 of each processing roll 13 and 14 slide The movement trajectory of the part may be different. The point is that the movement loci of the sliding portions of the guide plates 34 may be determined so that the rotational speeds of the processing rolls 13 and 14 (the roll blades 32) become the same.

  -The roll forming apparatus of the said embodiment can be applied also to the roll forming apparatus in which the outer diameter of the roll blade 32 of the 1st process roll 13 and the outer diameter of the roll blade 32 of the 2nd process roll 14 differ. In such a device, the shapes of the guide plates 34 and the movement loci of the sliding portions of the guide plates 34 are determined so that the moving speeds of the surface of the roll blade 32 in the rotational direction of the processing rolls 13 and 14 become the same. Just do it.

  DESCRIPTION OF SYMBOLS 10 Roll forming apparatus 11 Base 12 Support pillar 12A Fixed column 12B Moving part 13 1st processing roll 14 2nd processing roll 15 Forming blade 16 Active gear 17: driven gear, 18: electric motor, 19: first auxiliary roll, 19A: first cylinder, 20: second auxiliary roll, 20A: second cylinder, 31: rotating shaft, 31A: round bar, 31B: rib , 32: roll blade, 33: support plate, 34: guide plate, 34A: sliding portion, 34B: guide portion, 35: collar, 36: nut.

Claims (5)

A pair of processing rolls arranged so that the outer peripheral surfaces face each other and a part of the outer peripheral surface forms a forming blade, a main operating gear integral with one processing roll of the pair of processing rolls, and the pair A driven gear integrally coupled to the other working roll of the working rolls and meshed with the main moving gear; and a drive source connected to the one working roll to rotationally drive the working roll.
The work is passed between the pair of processing rolls while rotating the pair of processing rolls through the rotational drive of the one processing roll by the drive source and the meshing of the main moving gear and the driven gear. Processing and forming the work
After passing through the work between the pair of processing rolls with the gap made larger in advance, the pre-adjustment prior to the processing and forming moves at least one of the pair of processing rolls so as to narrow the gap. A roll forming apparatus that is performed such as rotating a pair of processing rolls, wherein
A guide plate integrally provided on each of the pair of processing rolls so as to protrude in an annular shape extending around the entire circumference of the processing rolls;
In the aspect in which the guide plate of the other processing roll is rotated by the rotational force of the guide plate of the one processing roll, the side surfaces of the guide plates face each other in the direction in which the rotation axes of the pair of processing rolls extend. Slide, roll forming device. The guide plates are provided two by two on each of the pair of processing rolls so as to be spaced apart in the direction in which the rotation axis extends.
The roll forming apparatus according to claim 1, wherein the pair of processing rolls are disposed in such a manner that the two guide plates integral with one of the processing rolls are sandwiched between the two guide plates integral with the other. A gap between the opposing surfaces as a part of the opposing surfaces of the guide plate integral with the one work roll and the guide plate integral with the other work roll move toward the end of the guide plate The roll forming apparatus according to claim 2, which has a tapered shape in which The processing roll includes a roll blade and a guide plate, the outer periphery of which is fitted on the rotary shaft and the rotary shaft, and the outer peripheral surface thereof forms the forming blade, and the rotary shaft, the roll blade, and the guide plate The roll forming apparatus according to claim 2 or 3, wherein the roll forming apparatus has a structure that can be assembled and disassembled. The outer diameter of the forming blade of the one processing roll and the outer diameter of the forming blade of the other processing roll are the same.
The movement locus of the part which said guide plate of said one processing roll slides on said guide plate of said other processing roll is the same shape in the said guide plates, The any one of Claims 1-4 The roll forming apparatus described in.