JP3882697B2 - Press roll device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a press roll apparatus.
[0002]
[Prior art]
In mechanical parts and the like, as shown in FIGS. 10 and 11, it may be required to manufacture a plate material a having a different thickness in the plate width direction (asymmetric thickness in the plate width direction).
[0003]
In general, the plate materials a having different thicknesses in the width direction are subjected to reduction molding using a press device. However, the press forming by the press device requires a very large reduction force in order to change the plate thickness by applying the press force to the entire surface of the material. For this reason, the press device becomes very large and for driving. In addition, there is a problem in that a large noise and vibration are generated during press work.
[0004]
As a device for solving such problems of the press device, a press roll device 1 shown in FIG. 12 has been proposed. FIG. 12 shows the shape of the side surface of the press roll device 1. A hole mold 3 is fixed on the fixing base 2, and the upper surface of the hole mold 3 has a recess with its upper part opened as shown in FIG. 13. A groove 4 is formed. The concave groove 4 is formed with a required length in the left-right direction of FIG. 12, and is slightly lower than the upper surface of the hole mold 3 on both sides in the width direction of the concave groove 4 (left and right outer sides in FIG. 13). A burr path 5 is formed, and a burr pool 6 is formed further outside the burr path 5.
[0005]
The concave groove 4 in FIG. 13 is a side H1 having a deep depth on the right side in the width direction and a side H2 having a shallow depth on the left side in the width direction, and forms a rolling space having an asymmetric shape on the left and right.
[0006]
Normally used rolling material 7 has a rectangular cross-sectional shape as shown in FIG. And the width | variety and thickness dimension of this rolling raw material 7 are decided so that it may become a cross-sectional area larger than the cross-sectional area of the rolling space of the said groove 4. The surplus portion of the cross-sectional area of the rolled material 7 with respect to the concave groove 4 escapes partly in the longitudinal direction (left and right direction in FIG. 12) by rolling, and the rest escapes to the burr pool 6 through the burr road 5. .
[0007]
A fixing portion 8 for fixing one end of the rolling material 7 fitted and arranged in the concave groove 4 is provided on one side in the longitudinal direction of the concave groove 4 in the hole mold 3 of FIG.
[0008]
On the upper part of the hole mold 3, a lifting platform 10 that can be moved to and away from the hole mold 3 by a pressing device 9 is provided, and a roll is provided between the lifting platform 10 and the hole mold 3. A device 11 is arranged.
[0009]
The roll device 11 includes a moving block 13 that can move in the longitudinal direction of the concave groove 4 (left and right direction in FIG. 12) by expansion and contraction of the roll moving device 12, and the movable block 13 includes the concave groove 4. A rolling roll 14 for rolling the rolling raw material 7 arranged in is attached so as to be rotatable about a shaft 15 extending horizontally in the width direction and to be movable in the reduction direction, and further directly above the rolling roll 14. A pressing roll 18 is attached, which is rotatable about an axis 17 parallel to the axis 15 and is movable in the reduction direction. The pressing roll 18 and the rolling roll 14 have the same outer diameter, and the outer peripheral surfaces thereof are in contact with each other, and the upper surface of the pressing roll 18 is in contact with the lower surface of the lifting platform 10. Therefore, when the elevator 10 is lowered by the press device 9, the rolling roll 14 can be pressed against the rolling material 7 via the pressing roll 18.
[0010]
When rolling a rolling material with the press roll apparatus shown in FIG. 12, first, in a state where the roll moving apparatus 12 is reduced and the roll apparatus 11 is on the right side (further to the right of the position in FIG. 12), One end of the rolling material 7 is fixed to the fixing portion 8, and the rolling material 7 is fitted into the groove 4. Next, the elevator 10 is lowered by the press device 9 and adjusted so that the lower surface of the rolling roll 14 is positioned to roll the rolling material 7 to a predetermined thickness. Alternatively, the press device 9 is adjusted so that a predetermined load is applied.
[0011]
Subsequently, when the roll moving device 12 is extended, the rolling roll 14 moves from the fixed side end 7a of the rolling material 7 toward the non-fixed side end 7b while being pressed by the lifting platform 10 via the pressing roll 18. Rolling is performed such that the rolled material 7 is pushed into the groove 4. At this time, a part of the surplus cross-sectional area of the rolled material 7 with respect to the concave groove 4 is extended in the longitudinal direction, and the rest is accumulated in the burr pool 6 through the burr path 5. When the rolled product formed by the rolling is taken out from the hole mold 3 and the burr on the burr road 5 is removed, rolled products having different thicknesses in the width direction are obtained.
[0012]
According to the rolling by the press roll apparatus 1 described above, as shown in FIG. 14, the rolling material 7 is plastically flowed by the rolling part X of the rolling roll 14, so that the rolling material 7 is rolled with a smaller force than the press work. There is an advantage that you can.
[0013]
[Problems to be solved by the invention]
However, in the press roll apparatus 1 shown in FIG. 12, the depth of the concave groove 4 has an asymmetric shape in the width direction as shown in FIG. 13, and the thickness in the width direction as shown in FIG. When different rolled products 19 are manufactured, the amount of the rolled material 7 that is extended in the longitudinal direction is larger on the side H2 where the depth of the groove 4 in FIG. 13 is shallower than on the side H1 where the depth is deep. Therefore, as shown by a solid arrow A in FIG. 15, the non-fixed side end 7b has a problem that the depth of the concave groove 4 is inclined toward the deep side H1.
[0014]
If the non-fixed side end 7b is tilted in this way, good rolling cannot be performed, and furthermore, the non-fixed side end 7b protrudes from the concave groove 4 due to the tilt, and a rolled product cannot be manufactured. There was a problem.
[0015]
The present invention has been made in view of the above circumstances, and in the case of manufacturing a rolled product having a thickness different in the width direction using a groove having an asymmetric depth in the width direction, A press roll device that prevents the non-fixed side end of the rolled material from being inclined due to different rolling amounts, and that the rolled material in the width direction of the rolled material is adjusted to always obtain a good rolled product. It is intended to provide.
[0016]
[Means for Solving the Problems]
According to the first aspect of the present invention, a roll having a groove having an asymmetric depth in the width direction is provided in the hole mold, and one end of a rolling material disposed in the groove is fixed to the hole mold and pressed by a press device. A press roll device for manufacturing a rolled product by spreading the rolled material into the concave groove by moving the device from the fixed side end to the non-fixed side end of the rolled material. The present invention relates to a press roll device comprising a lateral movement fixing device that abuts against a side surface in the width direction at a fixed side end to prevent the non-fixed side end from tilting in the horizontal direction.
[0017]
The invention according to claim 2 is provided with a lateral bending driving device that is provided so that the lateral movement fixing device is movable in the width direction of the rolling material, and that the lateral movement fixing device is moved to apply a lateral bending force to the non-fixed side end. The press roll apparatus according to claim 1, wherein
[0018]
The invention according to claim 3 relates to the press roll apparatus according to claim 1 or 2, characterized in that the roll apparatus includes two pressing rolls in contact with one rolling roll.
[0019]
According to the above means, it operates as follows.
[0020]
When rolling a symmetric rolling material with a groove having an asymmetric depth in the width direction, the shallow side of the groove is compared to the deep side of the groove. Although the degree of work increases and extends greatly in the longitudinal direction, the rolled material is inclined to the deep side of the groove, but the invention according to claim 1 is provided with a lateral movement fixing device that prevents the non-fixed side end from being inclined. Therefore, the inclination of the rolled material is forcibly suppressed.
[0021]
Therefore, in the cross section of the rolled portion of the rolled material, a stress distribution of “compression” in the longitudinal direction occurs on the side where the depth of the concave groove is shallow, and “tensile” occurs on the side where the depth is deep. On the side where the depth of the groove where the “compression” stress is generated in the longitudinal direction is shallow, the rolling material becomes difficult to extend in the longitudinal direction, and as a result, the amount of escape to the burr pool through the burr road increases. On the other hand, on the side where the depth of the groove where “tensile” stress is generated in the longitudinal direction is deep, the rolled material tends to extend in the longitudinal direction, and as a result, the amount of escape to the burr pool through the burr path is reduced. . Therefore, the unevenness in the width direction of the longitudinal extension of the rolled material, which is the cause of the tilt of the rolled material, is alleviated, and the tilt of the rolled material can be prevented.
[0022]
In the invention according to claim 2, since the lateral movement fixing device for guiding the rolled material can be moved in the width direction of the rolled material by the lateral bending drive device, the rolling material is recessed at the non-fixed side end of the rolled material. If the lateral bending drive device is bent toward the side where the groove is less likely to be filled, a “compression” stress is generated in the longitudinal direction on the side which is less likely to be filled, and as a result, the degree of filling is increased.
[0023]
In addition, when the shape such as the depth of the concave groove formed in the hole mold is changed in the longitudinal direction, the lateral movement is fixed so that the stress distribution in the longitudinal direction is optimized with the progress of rolling. By moving the position of the apparatus with the lateral bending driving apparatus, the rolling material can be effectively filled over the entire length direction with respect to the concave groove whose shape changes in the longitudinal direction.
[0024]
In the invention of claim 3, by pressing the rolling roll with a plurality of pressing rolls, the rolling roll is prevented from bending in the horizontal direction (longitudinal direction), and the moving block is prevented from overturning. It is possible to reduce the diameter of the rolling roll and process it with a small reduction force.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Preferred embodiments of the invention will be described below with reference to the drawings.
[0026]
1 is a side view showing an embodiment of the press roll apparatus of the present invention, FIG. 2 is a plan view of FIG. 1 viewed from the II-II direction, FIG. 3 is a view taken in the direction of arrows III-III in FIG. FIG. 4 is a view taken in the direction of arrows IV-IV in FIG. 2, and the same members and parts as those in the conventional apparatus shown in FIGS.
[0027]
The press roll apparatus shown in FIGS. 1 and 2 is shown in FIG. 3 by rolling the rolling material 7 with a groove 3 having an asymmetric depth in the width direction as shown in FIG. The case where the rolled product 19 from which thickness differs in the width direction is shown is shown.
[0028]
In the press roll apparatus 1, the opposite end (left end in FIGS. 1 and 2) of the hole mold 3 on the opposite side to the fixed portion 8 is brought into contact with both side surfaces in the width direction of the non-fixed side end 7 b of the rolled material 7. Then, the lateral movement fixing device 20 is installed so as to prevent the unfixed side end 7b from moving in the lateral direction.
[0029]
For example, as shown in FIG. 4, the lateral movement fixing device 20 includes a bottom plate 21 and side plates 22 provided vertically at both ends in the width direction of the bottom plate 21 to form recesses 23 into which the rolling material 7 can be fitted. Opposing guide surfaces 24 a and 24 b are formed by the inner surface of the recess 23 side plate 22. In the lateral movement fixing device 20, the fixed end 25 is fixed to the hole mold 3 so that the concave portion 23 is positioned on the extension of the concave groove 4. The guide surfaces 24 a and 24 b are spaced slightly larger than the width of the rolled material 7, and the height of the guide surfaces 24 a and 24 b is higher than the thickness of the rolled material 7.
[0030]
The lateral movement fixing device 20 prevents the unfixed side end 7b from moving in the lateral direction by guiding the unfixed side end 7b of the rolling material 7 with the guide surfaces 24a and 24b of the recess 23. The guide surfaces 24a and 24b are preferably finished so that the non-fixed side end 7b of the rolled material 7 can move in the longitudinal direction, and the guide surfaces 24a and 24b are preferably coated with lubricating oil.
[0031]
On the other hand, as described above, when the rolled material 7 is rolled with the groove 3 having the asymmetrical depth 4 in the width direction, the direction in which the rolled material 7 is tilted is known in advance. Instead of the lateral movement fixing device 20 having the shape of the recess 23 as described above, a guide surface may be provided only on one side in the direction in which the rolling material 7 is inclined.
[0032]
5 and 6 show still another configuration of the lateral movement fixing device 20. In FIGS. 5 and 6, the end portion of the hole mold 3 opposite to the fixing portion 8 (FIG. 1, FIG. 6). Guide rollers 27a and 27b which are fixed to the fixing member 26 fixed to the left end portion 2 of FIG. 2 and abut against the both sides in the width direction of the non-fixed side end 7b of the rolling material 7 disposed in the groove 4 so as to freely rotate. Are arranged along the longitudinal direction of the rolling material 7. Also in this case, a guide roller may be provided only on one side in the direction in which the rolling material 7 is inclined.
[0033]
The roll apparatus 11 provided in the press roll apparatus 1 of FIG. 1 may have a configuration in which one pressing roll 18 is disposed immediately above one rolling roll 14 as shown in FIG. Further, in order to prevent the rolling roll 18 in FIG. 12 from being bent in the horizontal direction (left-right direction) due to the force received from the material during processing, the pressing roll 18 may be slightly shifted in the right direction in FIG. Good. However, when the displacement amount of the pressing roll 18 is increased, the effect of preventing the rolling roll 18 from being deflected in the horizontal direction is increased, but a large force is exerted to cause the moving block 13 to fall. Therefore, in order to prevent this fall, it is necessary to increase the strength of the moving block 13 and its support mechanism. In order to reduce the rolling force and facilitate the rolling of the rolling material 7, it is effective to reduce the diameter of the rolling roll 14, but if the diameter of the rolling roll 14 is reduced, the bending of the rolling roll 14 in the horizontal direction is effective. There is also a problem that becomes larger.
[0034]
In order to cope with such a problem, the roll apparatus 11 of FIG. 1 has a triangular arrangement including one rolling roll 14 and two pressing rolls 18 a and 18 b arranged on the upper part of the rolling roll 14. Yes.
[0035]
According to the configuration of the roll device 11 shown in FIG. 1, the rolling roll 14 is backed up by two pressing rolls 18a and 18b, and the rolling roll 14 is prevented from escaping in the left-right direction due to the wedge effect due to its triangular arrangement. Therefore, the moving block 13 is prevented from falling. Further, since the bending of the rolling roll 14 is prevented by the wedge effect due to the triangular arrangement in which the rolling roll 14 is backed up by the two pressing rolls 18a and 18b, the rolling roll 14 and the pressing rolls 18a and 18b are reduced in diameter by a small reduction. It becomes possible to process with force.
[0036]
FIG. 7 shows another example of the roll device 11 shown in FIG. 1. One pressing roll 14 in the first stage and two small diameter pressings in the second stage arranged on the upper part of the rolling roll 14. A roll 28, three third-stage press rolls 29 provided on the top of the press roll 28, and four fourth-stage press rolls 30 provided on the top of the press roll 29 are provided. At this time, the second-stage pressing roll 28 and the third-stage pressing roll 29 are small-diameter rolls having the same diameter, and the first-stage rolling roll 14 and the fourth-stage pressing roll 30 have the same diameter. It is a large diameter roll.
[0037]
As shown in FIG. 7, in order for the rolling roll 14 to roll the rolling material 7 by the movement of the roll device 11 and the pressing roll 30 to roll on the lower surface of the lifting platform 10, the rotation directions of the rolls are opposite to each other. In order to maintain this rotational direction, the number of rolls provided in the roll device 11 is an even number. In addition, it is desirable that the roll diameter of the two pressing rolls 28 in the second stage, the roll diameter of the three pressing rolls 29 in the third stage, and the roll diameter of the three pressing rolls 30 in the fourth stage are the same, The combination of roll diameters of the first stage, the second stage, the third stage, and the fourth stage can be changed in a timely manner.
[0038]
As shown in FIG. 7, the roll device 11 having even-numbered rolls can prevent the moving block 13 from being overturned as in the case of FIG. 1, and the diameter of the rolling roll 14 and the pressing roll 30 can be reduced. Therefore, it becomes possible to process with a small reduction force.
[0039]
Next, the operation of the above embodiment will be described.
[0040]
In the press roll apparatus of FIGS. 1 to 4, when rolling the rolling material when the depth of the concave groove 4 has an asymmetric shape in the width direction, first, the roll moving apparatus 12 is reduced and the roll apparatus 11 is moved to the right side. In this state, one end of the rolling material 7 is fixed to the fixing portion 8, and the rolling material 7 is fitted into the groove 4, and between the guide surfaces 24 a and 24 b of the recess 23 in the lateral movement fixing device 20. Fit. In the case of the lateral movement fixing device 20 shown in FIGS. 5 and 6, the rolling material 7 is fitted between the guide rollers 27a and 27b.
[0041]
Next, the elevator 10 is lowered by the press device 9 and adjusted so that the lower surface of the rolling roll 14 is positioned to roll the rolling material 7 to a predetermined thickness. Or it adjusts so that a predetermined load may be given to rolling raw material 7.
[0042]
Subsequently, when the roll moving device 12 is extended, the rolling roll 14 moves from the fixed side end 7a of the rolling material 7 toward the non-fixed side end 7b while being pressed by the lifting platform 10 via the pressing rolls 18a and 18b. Then, the rolled material 7 is rolled so as to be expanded into the concave groove 4.
[0043]
At this time, since the depth of the groove 4 is asymmetric in the width direction as shown in FIG. 11, the non-fixed side end 7b of the rolled material 7 is shown by a dotted arrow A in FIGS. The groove 4 is inclined toward the deep side H1.
[0044]
However, the non-fixed side end 7b cannot be inclined because the lateral movement is restricted by the guide surfaces 24a, 24b or the guide rollers 27a, 27b of the lateral movement fixing device 20, and the unrolled side end 7b of the rolling material 7 accompanying the rolling can not be inclined. Only the change in the longitudinal direction moves along the guide surfaces 24a and 24b.
[0045]
As described above, the inclination of the non-fixed side end 7 b is forcibly suppressed by the lateral movement fixing device 20. Therefore, in the left cross section of the rolling part X of the rolled material 7, the stress distribution of “compression” in the longitudinal direction is present on the side H2 where the depth of the groove 4 is shallow, and “tensile” is present in the longitudinal direction on the side H1 where the depth is deep. appear. On the side H <b> 2 where the depth of the concave groove 4 where the “compression” stress is generated in the longitudinal direction, the rolling material 7 is difficult to extend in the longitudinal direction, and as a result, the amount of escape to the burr pool 6 through the burr path 5 is large. Become. On the other hand, on the side where the depth of the concave groove 4 where “tensile” stress is generated in the longitudinal direction is deep, the rolling material 7 tends to extend in the longitudinal direction, and as a result, the amount of escape to the burr pool 6 through the burr road 5. Less. Therefore, the non-uniformity in the width direction of the longitudinal extension of the rolled material 7 that is the cause of the tilt of the rolled material 7 is alleviated, and the tilt of the rolled material 7 can be prevented.
[0046]
Moreover, as shown in FIG. 1, two press rolls 18a and 18b in contact with the rolling roll 14 are provided, or in addition to the two press rolls 28 in contact with the rolling roll 14 as shown in FIG. By providing 30, the rolling roll 14 can be prevented from being bent in the horizontal direction, and the moving block 13 can be prevented from falling over, so that it can be processed with a small reduction force.
[0047]
8 and 9 show another embodiment of the press roll device of the present invention. In the press roll device 1 shown in FIGS. 8 and 9, the fixing roll 2 is opposite to the fixing portion 8 of the hole mold 3. A support base 31 is fixed to the side end (the left end in FIGS. 8 and 9), and a guide member such as a linear guide extending on the support base 31 in a direction perpendicular to the longitudinal direction of the rolling material 7. The lateral movement fixing device 20 having the configuration shown in FIG. 1 to FIG. 4 or FIG. 5 and FIG. Further, a lateral bending drive device 33 for moving the lateral movement fixing device 20 in the width direction of the rolling material 7 along the guide member 32 is installed on the support base 31. 8 and 9 includes a screw shaft 34 screwed into the lateral movement fixing device 20 in parallel with the guide member 32, and a servo motor 35 for rotationally driving the screw shaft 34. The case where it comprises is shown. However, various configurations other than the illustrated example can be adopted as the lateral bending drive device 33.
[0048]
Further, a roll position detector 36 using a method such as directly detecting the position of the rolling roll 14 or detecting the position of the rolling roll 14 based on the amount of expansion / contraction of the roll moving device 12 is provided. A controller 37 is provided for controlling the drive of the servo motor 35 of the lateral bending drive device 33 based on the signal.
[0049]
According to the configuration of the lateral bending drive device 33 shown in FIGS. 8 and 9, the servo motor 35 is driven to move the lateral movement fixing device 20 in the width direction, so that the non-fixed side end 7 b is positively laterally moved. Bend in the direction.
[0050]
When the depth of the groove 4 having an asymmetric shape in the width direction provided in the hole mold 3 is greatly different between the shallow side H2 and the deep side H1, it becomes difficult to fill the material with respect to the deep side H1. . In such a case, the lateral bending drive device 33 is driven to move the lateral movement fixing device 20 to the deep side H1 of the groove 4 so that the non-fixed side end 7b is slightly bent in the direction of the deep side H1. . Then, the filling degree of the raw material to the deep side H1 increases, and the rolling raw material 7 can be filled in the entire groove 4.
[0051]
Further, when the shape such as the depth of the concave groove 4 formed in the hole mold 3 changes in the longitudinal direction, the optimum position of the non-fixed side end 7b is the degree of rolling progress (position of the rolling roll 14). It changes every moment. Therefore, the position of the lateral movement fixing device 20 is moved in synchronization with the position of the rolling roll 14 so that the non-fixed side end 7b can always be fixed at the optimum position. That is, the servo motor 35 is controlled by the controller 37 based on the detection signal of the roll position detector 36. Thereby, it becomes possible to effectively fill the rolling material 7 over the entire length direction with respect to the groove 4 whose shape changes in the longitudinal direction.
[0052]
In addition, this invention is not limited only to the said form example, It is not limited to the shape of the ditch | groove 4. FIG. Even when the groove 4 is symmetric in the width direction, the left and right asymmetry is manifested in the actual processing due to the processing accuracy of the hole mold 3 and the rolling material 7, and the present invention is also effective in such a case. . It goes without saying that various modifications can be made without departing from the scope of the present invention.
[0053]
【The invention's effect】
When rolling a symmetric rolling material with a groove having an asymmetric depth in the width direction, the shallow side of the groove is compared to the deep side of the groove. According to the first aspect of the invention, the lateral movement fixing device prevents the non-fixed side end from being tilted, although the degree of work increases and extends greatly in the longitudinal direction, and the rolled material tilts toward the deep side of the groove. Therefore, the inclination of the rolled material is forcibly suppressed.
[0054]
Therefore, in the cross section of the rolled portion of the rolled material, a stress distribution of “compression” in the longitudinal direction occurs on the side where the depth of the concave groove is shallow, and “tensile” occurs on the side where the depth is deep. On the side where the depth of the groove where the “compression” stress is generated in the longitudinal direction is shallow, the rolling material becomes difficult to extend in the longitudinal direction, and as a result, the amount of escape to the burr pool through the burr road increases. On the other hand, on the side where the depth of the groove where “tensile” stress is generated in the longitudinal direction is deep, the rolled material tends to extend in the longitudinal direction, and as a result, the amount of escape to the burr pool through the burr path is reduced. . Therefore, the unevenness in the width direction of the longitudinal extension of the rolled material, which is the cause of the tilt of the rolled material, is alleviated, and the tilt of the rolled material can be prevented.
[0055]
According to the second aspect of the present invention, the lateral movement fixing device for guiding the rolled material can be moved in the width direction of the rolled material by the lateral bending drive device. If the lateral bending drive device is bent toward the side where it is difficult to fill the concave groove, a “compression” stress is generated in the longitudinal direction on the side which is difficult to fill, and as a result, the degree of filling is increased.
[0056]
Also, when the shape such as the depth of the concave groove formed in the hole mold is changed in the longitudinal direction, the lateral movement is fixed so that the stress distribution in the longitudinal direction is optimized with the progress of rolling. By moving the position of the apparatus with the lateral bending driving apparatus, the rolling material can be effectively filled over the entire length direction with respect to the concave groove whose shape changes in the longitudinal direction.
[0057]
According to the third aspect of the present invention, the rolling roll is pressed by the plurality of pressing rolls, thereby preventing the rolling roll from being bent in the horizontal direction (longitudinal direction) and preventing the moving block from being overturned. It is possible to reduce the diameter of the rolling roll and process it with a small reduction force.
[Brief description of the drawings]
FIG. 1 is a side view showing an example of a form of a press roll apparatus of the present invention.
FIG. 2 is a plan view of FIG. 1 viewed from the II-II direction.
3 is a view taken in the direction of arrows III-III in FIG. 2;
4 is a view taken in the direction of arrows IV-IV in FIG. 2;
FIG. 5 is a plan view showing another example of the lateral movement fixing device.
6 is a view taken in the direction of arrows VI-VI in FIG.
FIG. 7 is a side view showing another example of a roll device.
FIG. 8 is a plan view showing another example of the form of the press roll device of the present invention.
9 is a IX-IX direction arrow view of FIG. 8;
FIG. 10 is a plan view showing an example of a plate material.
11 is a XI-XI direction arrow view of FIG. 10;
FIG. 12 is a side view showing an example of a conventional press roll device.
13 is a view taken in the direction of arrows XIII-XIII in FIG.
FIG. 14 is a side view showing the action of the rolling roll.
FIG. 15 is a plan view showing a state in which a non-fixed side end of a rolled material is inclined by a conventional press roll device.
16 is a view in the direction of arrows XVI-XVI in FIG. 15;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Press roll apparatus 3 Hole type 4 Groove 7 Roll material 7a Fixed side end 7b Non-fixed side end 8 Fixing part 9 Press apparatus 11 Roll apparatus 12 Roll moving apparatus 14 Roll roll 18 Press roll 18a, 18b Press roll 19 Rolled product 20 Lateral movement fixing device 21 Bottom plate 22 Side plate 23 Recesses 24a, 24b Guide surface 25 Fixed end 26 Fixing member 27a, 27b Guide roller 28 Press roll 29 Press roll 30 Press roll 31 Support base 32 Guide member 33 Lateral bending drive device

Claims (3)

A hole mold is provided with a groove having an asymmetric depth in the width direction, one end of a rolling material disposed in the groove is fixed to the hole mold, and a roll device pressed by a pressing device is connected to a fixed side end of the rolling material. Is a press roll device for producing a rolled product by expanding the rolled material into the groove by moving from the non-fixed side end to the side surface in the width direction at the non-fixed side end of the rolled material. A press roll device comprising a lateral movement fixing device that abuts and prevents the non-fixed side end from tilting laterally. The lateral movement fixing device is provided so as to be movable in the width direction of the rolling material, and includes a lateral bending drive device that moves the lateral movement fixing device to apply a lateral bending force to the non-fixed side end. The press roll apparatus according to 1. The press roll apparatus according to claim 1 or 2, wherein the roll apparatus includes two pressing rolls in contact with one rolling roll.

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