JPWO2019187995A1 - Roll press equipment - Google Patents

Abstract

The lower roll and the upper roll are arranged to face each other to compact the workpiece. The moving device relatively moves the lower roll support and the upper roll support to control the gap between the lower roll and the upper roll. In each of the one side region, the central region, and the other side region, a pair of backup rolls are provided on the lower surface side of the lower roll, and a pair of backup rolls are also provided on the upper surface side of the upper roll. In each of the one side region, the central region, and the other side region, the gap between the lower roll backup roll and the upper roll backup roll is independently controlled by the backup roll adjusting device.

Description

The present invention relates to a roll press device having a lower roll and an upper roll arranged so as to face each other.

A roll press device having a lower roll and an upper roll arranged so as to face each other has been conventionally known. For example, Patent Document 1 discloses a molding roll gap adjusting mechanism including a lower roll and an upper roll arranged so as to face each other. Further, Patent Document 2 discloses a path line adjusting device including a lower roll and an upper roll arranged so as to face each other.

FIG. 18 is a diagram corresponding to FIG. 1 of Patent Document 1. In the molding roll gap adjusting mechanism shown in FIG. 18, each lift device uses the adjusting piece 312 having the wedge surface 313 to move the bearing housing 306 having the tapered surface 311 up and down. A feed screw mechanism 315 is provided as a mechanism for sliding and moving the wedge surface 313 of the adjusting piece 312 with respect to the tapered surface 311 of the bearing housing 306.

FIG. 19 is a diagram corresponding to FIG. 3 of Patent Document 2. The wedge member 402 having the inclined surface 407a is used to realize vertical movement with respect to the housing 408 having the inclined surface 408a. A hydraulic cylinder 404 is provided as a mechanism for sliding and moving the inclined surface 407a of the wedge member 402 with respect to the inclined surface 408a of the housing 408.

On the other hand, what the inventor of the present invention is particularly considering as a target of the roll press is a metal foil after the electrode material used for the secondary battery has been coated.

More specifically, a paste-like electrode material is applied and fired on a metal foil that functions as a current collector to form a further electrode layer. By repeating this step, a plurality of electrode layers are sequentially formed. For example, using a copper foil intended to function as a negative electrode as a base material, the three layers are formed in the order of a negative electrode layer, a solid electrolyte layer, and a positive electrode layer.

The metal foil is generally supplied continuously by being unwound from a rolled state, whereas the electrode layers are provided on the metal foil at equal intervals (with gaps). It is common for the coating to be applied intermittently.

In the material in which a plurality of electrode layers are fired on the metal foil as described above, a space remains between the coated and fired electrode layers, and a space remains inside each electrode layer. doing. That is, the adhesion rate between the particles of the raw material is low. This means that the transfer path is narrow for the ions responsible for charge transfer, the conductivity is low, and the performance as a battery becomes insufficient.

On the contrary, if the space between the electrode layers and the space in each electrode layer can be removed or reduced, it is considered that the adhesion rate between the particles of the raw material can be increased and the performance as a battery can be improved. With the intention of this effect, it has been studied to perform press molding on a material in which a plurality of electrode layers are fired on a metal foil.

Among the electrode layers, a sulfide-based material having a high lithium ion conductivity is often used as the material of the solid electrolyte layer. Sulfide-based materials generate dangerous hydrogen sulfide when they react with atmospheric moisture. For this reason, the device for processing sulfide-based materials needs to be installed in a space called a glove box, which is isolated from the atmosphere.

In this regard, in the lift device disclosed in Patent Document 1, since the feed screw 115 for moving the adjusting piece 112 extends to the side of the adjusting piece 12, it is difficult to fit it in the glove box. It was. Similarly, in the lift device disclosed in Patent Document 2, it is difficult to fit the lift device in the glove box because the hydraulic cylinder 204 for moving the wedge member 202 extends to the side of the wedge member 202. ..

Further, it is desired to avoid the adoption of, for example, a hydraulic device (which may cause oil leakage) inside the glove box in order to prevent contamination as much as possible. From this viewpoint as well, it has been difficult to adopt the lift device disclosed in Patent Document 2.

In addition, Patent Document 3 is a conventional document related to the backup roll described later.

Patent Document 1 is Japanese Patent Application Laid-Open No. 5-169117.
Patent Document 2 is JP-A-7-265919.
Patent Document 3 is Japanese Patent Application Laid-Open No. 2014-233745.

According to the present inventor, it has been found that the space between the electrode layers and the space in each electrode layer can be effectively removed or reduced by maintaining the plate thickness accuracy after press molding with high accuracy and uniformness.

The high accuracy of the plate thickness after press molding also has an effect of suppressing the problem that the variation in the plate thickness causes an undesired gap in the subsequent assembly process and lowers the battery performance.

Therefore, the present inventor has been diligently studying to develop a roll press apparatus capable of maintaining the plate thickness accuracy after press forming uniformly with high accuracy.

Then, the present inventor presents the upper surface side of the upper roll in order to counter the force that the upper roll (including the frame supporting the upper roll) tries to escape upward due to the reaction force from the work during press forming. In addition to providing an upper roll backup roll, the lower roll (including a frame that supports the lower roll) tries to escape downward due to the reaction force from the work during press forming. It was found that providing a lower roll backup roll on the lower surface side is effective for controlling the plate thickness accuracy after press forming to be maintained uniformly with high accuracy.

Further, in the present inventor, the force that the upper roll tries to escape upward and the displacement that can occur in the upper roll due to the force are one-sided region, the central region, and the other-side region when viewed in the axial direction of the upper roll. It was found that it can be different from. Similarly, the force with which the lower roll tries to escape downward and the displacement that can occur in the lower roll due to the force may differ between the one-side region, the central region, and the other-side region when viewed in the axial direction of the lower roll. I found that. As a result, a pair of upper backup roll and lower backup roll is separately provided for one side region, a central region, and the other side region when viewed in the axial direction of the upper roll and the lower roll, and the upper backup roll in each set is provided. It was further found that it is effective to control the interval with the lower backup roll independently.

Further, the inventor of the present invention states that the upper backup roll on the upper surface side of the upper roll is provided as a pair on both sides of the upper roll in a plan view so as to force the upper roll to escape upward. It was found to be effective in countering in a well-balanced manner. Similarly, the lower backup rolls on the lower surface side of the lower roll are provided in pairs on both sides of the axis of the lower roll in a plan view to counteract the downward force of the lower roll in a well-balanced manner. It was found to be effective for this purpose.

Here, a configuration in which a pair of upper backup rolls is provided over the entire axial direction of the upper roll is disclosed in Patent Document 3. Similarly, a configuration in which a pair of lower backup rolls are provided over the entire axial direction of the lower roll is disclosed in Patent Document 3. However, a pair of upper backup rolls is provided separately for the one side region, the central region, and the other side region when viewed in the axial direction of the upper roll, and the one side region and the central region when viewed in the axial direction of the lower roll. Providing a pair of lower backup roles separately from the other side area is a completely new configuration (layout).

This configuration (layout) was created for the first time by the present inventor in response to the realization of miniaturization of the mechanism for independently controlling the interval between the upper backup roll pair and the lower backup roll in each set.

The present invention has been devised based on the above findings. An object of the present invention is to provide a roll press apparatus capable of controlling the plate thickness accuracy after press molding to be maintained uniformly with high accuracy.

The present invention includes a lower roll and an upper roll that are arranged so as to compact the work, a lower roll support portion that rotatably supports the lower roll, and an upper roll support portion that rotatably supports the upper roll. And a moving device that controls the gap between the lower roll and the upper roll by relatively moving the lower roll support portion and the upper roll support portion, and a one-sided region when viewed in the axial direction of the lower roll. A pair of lower roll one-sided backup rolls that are arranged on the lower surface side of the lower roll and roll with each other, and are arranged on the lower surface side of the central region when viewed in the axial direction of the lower roll and roll with each other. A pair of lower roll central backup rolls that move with each other, and a pair of lower rolls and other side backup rolls that are arranged on the lower surface side of the other side region when viewed in the axial direction of the lower roll and roll with each other. A pair of upper roll one-sided backup rolls that are arranged on the upper surface side of one side region when viewed in the axial direction of the upper roll and roll with each other, and a central region when viewed in the axial direction of the upper roll. A pair of upper roll central backup rolls arranged on the upper surface side and rolling with each other with the upper roll, and a pair of upper rolls arranged on the upper surface side of the other side region when viewed in the axial direction of the upper roll and rolling with each other with the upper roll. A pair of upper rolls and other side backup rolls, a lower roll one side backup roll support portion that rotatably supports the pair of lower roll one side backup rolls, and a pair of lower roll central backup rolls that rotatably support each other. Lower roll center backup roll support part, lower roll other side backup roll support part that rotatably supports the pair of lower roll other side backup rolls, and the pair of upper roll one side backup rolls rotatably support Upper roll One side backup roll support part, upper roll central backup roll support part that rotatably supports the pair of upper roll central backup rolls, and upper roll that rotatably supports the pair of upper roll other side backup rolls. The other side backup roll support portion, the lower roll one side backup roll support portion, and the upper roll one side backup roll support portion are moved relative to each other to move the lower roll one side backup roll and the upper roll one side backup roll. The one-side backup roll adjusting device that controls the gap between the two, and the lower roll center backup roll support portion and the upper roll center backup roll support portion are relatively moved to move the lower roll center backup roll support portion. The lower roll adjusting device for controlling the gap between the roll and the upper roll central backup roll, and the lower roll other side backup roll support portion and the upper roll other side backup roll support portion are relatively moved to move the lower roll. The other side backup roll adjusting device for controlling the gap between the roll other side backup roll and the upper roll other side backup roll is provided, and the one side backup roll adjusting device, the central backup roll adjusting device, and the other side are provided. Each of the backup roll adjusting devices is screwed into a screw shaft having an axis, a pair of bearings that rotatably support the screw shaft around the axis, and screwed to the screw shaft via a plurality of rolling elements. A ball screw having a nut that linearly moves in the axial direction by rotation of the screw shaft, a frame that supports the bearing, an electric motor that has an output shaft that is supported by the frame and rotates, and an output shaft of the output shaft. A first movement that provides a rotational force transmission mechanism that transmits the rotational force as the rotational force of the screw shaft and a first sliding surface that is fixed to the nut and inclined at a predetermined angle with respect to a plane including the axial direction. It has a body and a second sliding surface that is arranged so as to be linearly movable in a direction perpendicular to the axial direction with respect to the frame and is movable to each other with respect to the first sliding surface. When the nut and the first moving body move linearly in the axial direction, the second moving body moves linearly in the vertical direction due to the sliding movement between the first sliding surface and the second sliding surface. The screw shaft penetrates the first moving body in the axial direction, and the pair of bearings are provided on both sides of the first moving body, and the second moving body is provided. In addition, either one of the lower roll one-side backup roll support portion and the upper roll one-side backup roll support portion, one of the lower roll central backup roll support portion and the upper roll central backup roll support portion, or The roll press device is characterized in that either one of the lower roll other side backup roll support portion and the upper roll other side backup roll support portion is supported.

According to the present invention, each backup roll adjusting device is compact because the screw shaft penetrates the first moving body in the axial direction and a pair of bearings are provided on both sides of the first moving body. Therefore, a configuration (layout) in which one side backup roll adjusting device, central backup roll adjusting device, and other side backup roll adjusting device are separately provided can be realized, and one side backup roll adjusting device, central backup roll adjusting device, and the other side can be realized. By controlling the backup roll adjusting device independently, it is possible to finely control the displacement of the upper roll and the lower roll, which may differ between the one-side region, the central region, and the other-side region when viewed in the axial direction of the upper roll and the lower roll. Adjustment (compensation) can be carried out.

Further, according to the present invention, in each backup roll adjusting device, the rotational force of the output shaft of the electric motor is used as the rotational force of the screw shaft of the ball screw, and the first moving body fixed to the nut of the ball screw is in the axial direction. When the second moving body moves linearly in a direction perpendicular to the axial direction, the movement of the second moving body can be controlled with high accuracy by the electric motor. That is, each backup roll adjusting device can be controlled with high accuracy. As a result, it is possible to reliably realize control for maintaining the plate thickness accuracy after press molding with high accuracy and uniformness.

Further, according to the present invention, since each backup roll adjusting device is compact and each backup roll adjusting device does not employ a hydraulic device, the roll press device can be installed in the glove box.

In the present invention, the pair of the first sliding surface and the second sliding surface that slide and move with each other is said to be in a direction perpendicular to both the axial direction and the linear movement direction of the second moving body. It is preferable that two pairs are provided so as to sandwich the screw shaft and separated from the screw shaft by a predetermined distance.

In this case, when the reaction force at the time of roll pressing acting on the second moving body is transmitted to the first moving body via the pair of the first sliding surface and the second sliding surface, the screw shaft The load directly received can be reduced. As a result, the possibility of a defect occurring in the screw shaft can be significantly reduced.

Further, in the present invention, the output shaft of the electric motor and the axis of the screw shaft are parallel to each other, and the rotational force transmission mechanism is perpendicular to the axis of the output shaft and the screw shaft. It is preferable to have a belt spanned between the output shaft and the screw shaft so as to orbit on an orbit extending in the plane.
In this case, since the rotational force transmission mechanism can be compactly configured, each backup roll adjusting device as a whole is even more compact. Therefore, a roll press device that employs each of these backup roll adjusting devices is more suitable for being installed in the glove box.

Further, in this case, the output shaft of the electric motor and the axis of the screw shaft partially overlap each other when viewed in the linear movement direction of the second moving body (in one example, in a plan view). It is preferable that they have a positional relationship.
According to this, each backup roll adjusting device as a whole is even more compact when viewed in the linear movement direction of the second moving body. Therefore, a roll press device that employs each of these backup roll adjusting devices is even more suitable for installation in a glove box.

Further, in this case, the screw shaft has a protruding portion that penetrates one of the pair of bearings and projects outward, and the belt is hung on the protruding portion of the screw shaft. Is preferable.
According to this, each backup roll adjusting device as a whole is even more compact. Therefore, a roll press device that employs each of these backup roll adjusting devices is even more suitable for installation in a glove box.

Further, the frame is provided with a first sliding guide extending parallel to the axial direction, and the first moving body can slide and move with respect to the first sliding guide. It is preferable that a certain first sliding portion is provided.
According to this, the movement of the first moving body in the axial direction can be carried out more smoothly.

In this case, the pair of the first sliding guide and the first sliding portion that slide and move with each other is in a direction perpendicular to both the axial direction and the linear movement direction of the second moving body. It is preferable that two pairs are provided so as to sandwich the screw shaft and separated from the screw shaft by a predetermined distance.

Even in such an embodiment, when the reaction force or the like acting on the second moving body during the roll press is transmitted to the first moving body via the pair of the first sliding surface and the second sliding surface. , The load directly applied to the screw shaft can be reduced. As a result, the possibility of a defect occurring in the screw shaft can be significantly reduced.

Further, the frame is provided with a second sliding guide extending perpendicularly to the axial direction, and the second moving body can slide and move with respect to the second sliding guide. It is preferable that a certain second sliding portion is provided.
According to this, the movement in the direction perpendicular to the axial direction of the second moving body can be carried out more smoothly.

Further, the predetermined angle is preferably in the range of 5.7 ° to 11.3 °. 5.7 ° is the value obtained by solving tan θ = 1/10, and 11.3 ° is the value obtained by solving tan θ = 1/5. As a result, a boost ratio of 5 to 10 times can be realized.

Regarding the moving speed, it is preferable that, for example, 10 mm / sec is realized as the moving speed of the second moving body. This speed corresponds to the moving speed of the first moving body of 50 mm / sec when the boosting ratio is 5 times, and the moving speed of the first moving body of 100 mm / sec when the boosting ratio is 10 times. Corresponds to.

Further, a measuring device for measuring each of the dimensions in the one-sided region after consolidation of the work, the dimensions in the central region after consolidation of the work, and the dimensions in the other-side region after consolidation of the work, and the measurement. It is preferable to further include a control device for controlling each of the one-side backup roll adjusting device, the central backup roll adjusting device, and the other-side backup roll adjusting device based on the measurement result by the device.

According to such an aspect, based on the actually measured information after consolidation of the work, the dimensional error in the one-sided region after consolidation of the work, the dimensional error in the central region after consolidation of the work, and the dimensional error in the central region after consolidation of the work. In order to adjust (compensate) the dimensional error in the other side region after consolidation of the work within an allowable range, each of the one side backup roll adjusting device, the central backup roll adjusting device, and the other side backup roll adjusting device is used. Can be controlled.

At least at the time of this application, the protection of the present application also covers aspects in which the central backup roll, the central backup roll support portion, and the central backup roll adjusting device are not adopted.

That is, the present invention includes a lower roll and an upper roll that are arranged so as to compact the work, a lower roll support portion that rotatably supports the lower roll, and an upper roll that rotatably supports the upper roll. A moving device that controls the gap between the lower roll and the upper roll by relatively moving the support portion, the lower roll support portion, and the upper roll support portion, and a moving device when viewed in the axial direction of the lower roll. A pair of lower roll one-side backup rolls that are arranged on the lower surface side of the side region and roll with each other with the lower roll, and the lower rolls that are arranged on the lower surface side of the other side region when viewed in the axial direction of the lower roll. A pair of lower rolls that roll with each other and a backup roll on the other side, and a pair of upper rolls that are arranged on the upper surface side of one side area when viewed in the axial direction of the upper roll and roll with each other. The backup roll, a pair of upper roll other side backup rolls arranged on the upper surface side of the other side region when viewed in the axial direction of the upper roll and rolling each other with the upper roll, and the pair of lower roll one side backup. A lower roll one-sided backup roll support that rotatably supports the roll, a lower roll other-side backup roll support that rotatably supports the pair of lower rolls and other backup rolls, and the pair of upper roll one-sided backups. An upper roll one-side backup roll support that rotatably supports the roll, an upper roll other-side backup roll support that rotatably supports the pair of upper rolls and other backup rolls, and a lower roll one-side backup roll support. A one-sided backup roll adjusting device that controls a gap between the lower roll one-sided backup roll and the upper roll one-sided backup roll by relatively moving the unit and the upper roll one-sided backup roll support portion, and the lower one. The other side backup roll that controls the gap between the lower roll other side backup roll and the upper roll other side backup roll by relatively moving the roll other side backup roll support part and the upper roll other side backup roll support part. Each of the one-side backup roll adjusting device and the other-side backup roll adjusting device includes an adjusting device, a screw shaft having an axis, and a pair of bearings that rotatably support the screw shaft around the axis. A ball screw having a nut screwed to the screw shaft via a plurality of rolling elements and linearly moving in the axial direction by rotation of the screw shaft, a frame supporting the bearing, and a frame. An electric motor having an output shaft that is supported by a bearing and rotates, a rotational force transmission mechanism that transmits the rotational force of the output shaft as the rotational force of the screw shaft, and a plane fixed to the nut and including the axial direction. A first moving body that provides a first sliding surface that is inclined at a predetermined angle, and a first sliding surface that is arranged so as to be linearly movable in a direction perpendicular to the axial direction with respect to the frame. It has a second sliding surface that can slide and move with respect to each other, and when the nut and the first moving body move linearly in the axial direction, the first sliding surface and the second sliding surface It has a second moving body that linearly moves in the vertical direction due to the sliding movement of the bearing, the screw shaft penetrates the first moving body in the axial direction, and the pair of bearings , Whichever of the lower roll one-side backup roll support portion and the upper roll one-side backup roll support portion, or the lower roll is provided on both sides of the first moving body. The roll press apparatus is characterized in that either one of the other side backup roll support portion and the upper roll other side backup roll support portion is supported.

On the contrary, when the upper roll and the lower roll are long in the axial direction, two or more sets of the central backup roll, the central backup roll support portion, and the central backup roll adjusting device may be adopted. Is also the subject of protection of the present application.

Further, at least at the time of the present application, aspects that do not limit the configuration of each backup roll adjusting device are also covered by the protection of the present application.

That is, the present invention includes a lower roll and an upper roll that are arranged so as to compact the work, a lower roll support portion that rotatably supports the lower roll, and an upper roll that rotatably supports the upper roll. A moving device that controls the gap between the lower roll and the upper roll by relatively moving the support portion, the lower roll support portion, and the upper roll support portion, and a moving device when viewed in the axial direction of the lower roll. A pair of lower roll one-side backup rolls that are arranged on the lower surface side of the side region and roll with each other with the lower roll, and the lower roll that is arranged on the lower surface side of the central region when viewed in the axial direction of the lower roll. A pair of lower roll central backup rolls that roll with each other, and a pair of lower rolls and other side backup rolls that are arranged on the lower surface side of the other side region when viewed in the axial direction of the lower roll and roll with each other. A pair of upper roll one-sided backup rolls that are arranged on the upper surface side of the one-sided region when viewed in the axial direction of the upper roll and roll with each other with the upper roll, and a center when viewed in the axial direction of the upper roll. A pair of upper roll central backup rolls that are placed on the upper surface side of the region and roll with each other, and are placed on the upper surface side of the other side region when viewed in the axial direction of the upper roll, and are arranged on the upper surface side of the upper roll and each other. The pair of upper rolls that roll each other, the other side backup roll, the lower roll one side backup roll support portion that rotatably supports the pair of lower roll one side backup rolls, and the pair of lower roll central backup rolls can be rotated. The lower roll central backup roll support portion that supports the lower roll, the lower roll other side backup roll support portion that rotatably supports the pair of lower rolls and the other side backup roll, and the pair of upper rolls and the one side backup roll can be rotated. The upper roll one-sided backup roll support portion to support, the upper roll central backup roll support portion for rotatably supporting the pair of upper roll central backup rolls, and the pair of upper roll other side backup rolls to be rotatably supported. The lower roll one-side backup roll, the lower roll one-side backup roll support portion, and the upper roll one-side backup roll support portion are relatively moved to move the upper roll other side backup roll support portion, the lower roll one-side backup roll, and the upper roll one-side backup roll. The one-side backup roll adjusting device that controls the gap between the two, and the lower roll center backup roll support portion and the upper roll center backup roll support portion are relatively moved to move the lower roll center backup roll center. The central backup roll adjusting device that controls the gap between the backup roll and the central backup roll of the upper roll, and the backup roll support portion on the other side of the lower roll and the backup roll support portion on the other side of the upper roll are relatively moved to each other. The roll press device is provided with a backup roll adjusting device on the other side that controls a gap between the backup roll on the other side of the lower roll and the backup roll on the other side of the upper roll.

Alternatively, the present invention includes a lower roll and an upper roll that are arranged so as to compact the work, a lower roll support portion that rotatably supports the lower roll, and an upper roll that rotatably supports the upper roll. A moving device that controls the gap between the lower roll and the upper roll by relatively moving the support portion, the lower roll support portion, and the upper roll support portion, and a moving device when viewed in the axial direction of the lower roll. A pair of lower roll one-side backup rolls that are arranged on the lower surface side of the side region and roll with each other with the lower roll, and the lower rolls that are arranged on the lower surface side of the other side region when viewed in the axial direction of the lower roll. A pair of lower rolls that roll with each other and a backup roll on the other side, and a pair of upper rolls that are arranged on the upper surface side of one side area when viewed in the axial direction of the upper roll and roll with each other. The backup roll, a pair of upper roll other side backup rolls arranged on the upper surface side of the other side region when viewed in the axial direction of the upper roll and rolling each other with the upper roll, and the pair of lower roll one side backup. A lower roll one-sided backup roll support that rotatably supports the roll, a lower roll other-side backup roll support that rotatably supports the pair of lower rolls and other backup rolls, and the pair of upper roll one-sided backups. An upper roll one-side backup roll support that rotatably supports the roll, an upper roll other-side backup roll support that rotatably supports the pair of upper rolls and other backup rolls, and a lower roll one-side backup roll support. A one-sided backup roll adjusting device that controls a gap between the lower roll one-sided backup roll and the upper roll one-sided backup roll by relatively moving the unit and the upper roll one-sided backup roll support portion, and the lower one. The other side backup roll that controls the gap between the lower roll other side backup roll and the upper roll other side backup roll by relatively moving the roll other side backup roll support part and the upper roll other side backup roll support part. It is a roll press device provided with an adjusting device.

According to one aspect of the present invention, each backup roll adjusting device is compact because the screw shaft penetrates the first moving body in the axial direction and a pair of bearings are provided on both sides of the first moving body. Therefore, a configuration (layout) in which the one-side backup roll adjusting device, the central backup roll adjusting device, and the other-side backup roll adjusting device are separately provided can be realized, and the one-side backup roll adjusting device, the central backup roll adjusting device, and the other side can be realized. By controlling the backup roll adjusting device independently, it is possible to finely control the displacement of the upper roll and the lower roll, which may differ between the one-side region, the central region, and the other-side region when viewed in the axial direction of the upper roll and the lower roll. Adjustment (compensation) can be carried out.

Further, according to one aspect of the present invention, in each backup roll adjusting device, the rotational force of the output shaft of the electric motor is used as the rotational force of the screw shaft of the ball screw, and the first moving body fixed to the nut of the ball screw. When the second moving body moves linearly in the axial direction, the second moving body moves linearly in the direction perpendicular to the axial direction, so that the movement of the second moving body can be controlled with high accuracy by the electric motor. That is, each backup roll adjusting device can be controlled with high accuracy. As a result, it is possible to reliably realize control for maintaining the plate thickness accuracy after press molding with high accuracy and uniformness.

Further, according to one aspect of the present invention, since each backup roll adjusting device is compact and each backup roll adjusting device does not employ a hydraulic device, the roll press device can be installed in the glove box. is there.

It is a schematic front view of the roll press apparatus of 1st Embodiment of this invention. FIG. 2 is a sectional view taken along line II-II of the roll press apparatus of FIG. FIG. 3 is a sectional view taken along line III-III of the roll press apparatus of FIG. FIG. 6 is a sectional view taken along line IV-IV of the roll press apparatus of FIG. It is sectional drawing which shows an example of a work. It is explanatory drawing of the displacement amount sensor of the roll press apparatus of this embodiment. It is the schematic of the roll press apparatus of the 2nd Embodiment of this invention. It is the schematic of the roll press apparatus of the modification of 2nd Embodiment of this invention. It is a schematic flow chart which shows the control example of the roll press apparatus based on the change of the load value detected by a load cell. It is the schematic of the roll press apparatus of the 3rd Embodiment of this invention. It is a schematic side view of the roll press apparatus of the 3rd Embodiment of this invention. FIG. 11 is a sectional view taken along line XII-XII of FIG. It is a schematic front view of the roll press device provided with the 1st modification of the electric lift device. It is a schematic front view of the roll press device provided with the 2nd modification of the electric lift device. It is a side view of the roll press apparatus of FIG. It is a cross-sectional view of XVI-XVI of the roll press apparatus of FIG. It is a schematic side view of the 3rd modification of the electric lift device. Schematic diagram of the conventional molding roll gap adjusting mechanism (corresponding to FIG. 1 of Patent Document 1) Schematic diagram of a conventional path line adjusting device (corresponding to FIG. 3 of Patent Document 2)

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic front view of the roll press device 20 according to the first embodiment of the present invention, FIG. 2 is a sectional view taken along line II-II of the roll press device 20 of FIG. 1, and FIG. 3 is FIG. It is the III-III sectional view of the roll press apparatus, and FIG. 4 is the IV-IV sectional view of the roll press apparatus of FIG. As shown in FIGS. 1 and 2, the roll press device 20 of the present embodiment includes a pair of electric lift devices 10. First, the electric lift device 10 will be described with reference to FIG.

[Structure of electric lift device 10]
The electric lift device 10 of the present embodiment has a ball screw 11. A plurality of ball screws 11 are provided with respect to a screw shaft 11a having an axis x, a pair of bearings 11b and 11c provided at both ends of the screw shaft 11a and rotatably supporting the screw shaft 11a around the axis x, and a screw shaft 11a. It has a nut 11d which is screwed through a rolling element (not shown) and linearly moves in the axis x direction by the rotation of the screw shaft 11a.

The axis x of the screw shaft 11a is parallel to the axes of the lower roll 23 (one side roll) and the upper roll 24 (other side roll), which will be described later, and the bearing 11b on the roll side (inside) is the inner frame wall 12b. The bearing 11c on the opposite side (outside) is built (supported) in the central frame wall 12c. The inner frame wall 12b and the central frame wall 12c are erected on the upper surface of the plate-shaped frame bottom plate 12a. Further, the outer frame wall 12d is provided so as to face the inner frame wall 12b, and the outer frame wall 12d is also erected on the upper surface of the frame bottom plate 12a. A frame top plate 12g provided with an opening 12h for penetrating a load cell is passed to the upper surfaces of the inner frame wall 12b and the outer frame wall 12d.

The substantially center of the lower surface of the frame bottom plate 12a is supported by the lower portion 26a of the roll frame 26, which will be described later (see FIG. 2). Further, the outside of the lower surface of the frame bottom plate 12a is fixed to the prism 12e erected from the base 40. As a result, the frame bottom plate 12a is fixed to the base 40. Further, an electric motor mounting plate 12f having an L-shaped cross section is fixed to the lower surface of the frame bottom plate 12a corresponding directly below the inner frame wall 12b.

The frame bottom plate 12a, the inner frame wall 12b, the central frame wall 12c, the outer frame wall 12d, the prism 12e, the electric motor mounting plate 12f, and the frame top plate 12g constitute the frame 12. These elements of the frame 12 may be formed integrally or may be formed separately and then fixed to each other.

As an example, when the lift force (pressurizing force) of the electric lift device 10 is 300 kN specification (600 kN for a pair of left and right) and the roll diameter is φ450 mm, the size of the frame bottom plate 12a and the frame top plate 12 g is 50 cm in a plan view. (Length visible in FIG. 1) x 40 cm (length visible in FIG. 2), and the thickness is about 6 cm. The size of the prism 12e is 10 cm × 40 cm in a plan view, and is the same height as the lower part 26a of the frame 26. The wall thickness of the inner frame wall 12b and the outer frame wall 12d is about 6 cm, and the height is about 30 cm. The wall thickness of the central frame wall 12c is about 5 cm, and the height is about 15 cm.

As shown in FIG. 1, an electric motor 13 (preferably a servomotor) having a rotating output shaft 13s is fixed to an electric motor mounting plate 12f. The output shaft 13s of the electric motor 13 is parallel to the axis x of the screw shaft 11a of the ball screw 11 and has a positional relationship that overlaps with each other in a plan view. As a result, the electric lift device 10 has been significantly reduced in size.

However, at the time of the present application, the present invention is not limited to a mode in which the output shaft 13s of the electric motor 13 and the axis x of the screw shaft 11a of the ball screw 11 completely overlap in a plan view, and the output shaft 13s of the electric motor 13 and the ball screw 11 The present invention also includes a mode in which the axis x of the screw shaft 11a of the above partially overlaps with the axis x in a plan view. The degree of miniaturization varies depending on the degree of duplication.

Returning to FIG. 1 again, the output shaft 13s of the electric motor 13 penetrates the hanging portion of the electric motor mounting plate 12f, protrudes inside the frame 12, and is fixed to the motor side pulley 13p. On the other hand, the screw shaft 11a of the ball screw 11 is also fixed to the screw shaft side pulley 11p at the protruding portion protruding outward from the bearing 11b on the roll side (inside). A belt 14 is hung on the motor-side pulley 13p and the screw shaft-side pulley 11p.

As an example, the motor side pulley 13p and the screw shaft side pulley 11p both have a diameter of about 8 to 12 cm. The width (thickness) of the motor side pulley 13p and the screw shaft side pulley 11p is about 4 cm, and the width of the belt 14 is slightly narrower than this, about 3.5 cm. The length of the belt 14 depends on the distance between the axis x of the screw shaft 11a and the output shaft 13s of the electric motor 13, and is, for example, about 70 to 80 cm. In some cases, the number of teeth of the screw shaft side pulley 11p may be increased with respect to the number of teeth of the motor side pulley 13p to form a reduction mechanism.

The motor-side pulley 13p, the screw shaft-side pulley 11p, and the belt 14 as described above function as a rotational force transmission mechanism that transmits the rotational force of the output shaft 13s as the rotational force of the screw shaft 11a. Specifically, it may be composed of a combination of a toothed pulley and a toothed belt, a timing pulley and a timing belt, and the like. Further, as is clear from FIG. 1, the belt 14 orbits on an orbit extending in a plane perpendicular to the axis x of the output shaft 13s and the screw shaft 11a.

A first moving body 15 that moves integrally with the nut 11d is fixed to the nut 11d of the ball screw 11. The first moving body 15 has a first sliding surface 15t that is inclined at a predetermined angle with respect to a plane including the axis x direction of the screw shaft 11a.

In the present embodiment, as shown in FIG. 2, the first sliding surface 15t sandwiches the screw shaft 11a in the horizontal direction perpendicular to both the axis x direction and the vertical direction, and from the screw shaft 11a. Two places are provided at a distance of a predetermined distance. Each of the two first sliding surfaces 15t extends parallel to the axis x direction of the screw shaft 11a in a plan view.

Further, in the present embodiment, as is clear from FIG. 1, the screw shaft 11a penetrates the first moving body 15 in the axial direction. The pair of bearings 11b and 11c are provided on both sides of the first moving body 15.

On the other hand, a first sliding guide 16 extending parallel to the axis x direction is provided on the upper surface of the frame bottom plate 12a, and the first moving body 15 slides against the first sliding guide 16. A first sliding portion 15s that can be moved is provided.

In the present embodiment, as shown in FIGS. 2 and 4, the pair of the first sliding guide 16 and the first sliding portion 15s is screwed in the horizontal direction perpendicular to both the axis x direction and the vertical direction. Two pairs are provided so as to sandwich the shaft 11a and separated from the screw shaft 11a by a predetermined distance. The sliding surface of the first sliding guide 16 and the first sliding portion 15s extends parallel to the axis x direction of the screw shaft 11a in a plan view.

Further, the electric lift device 10 of the present embodiment has a second moving body 18 capable of linearly moving in a direction perpendicular to the axis x direction with respect to the frame 12. The second moving body 18 has a second sliding surface 18t that can slide and move with respect to the first sliding surfaces 15t at two locations. As a result, when the nut 11d and the first moving body 15 move linearly in the axis x direction, the second moving body 18 is moved by sliding movement between the first sliding surface 15t and the second sliding surface 18t at two locations. , The linear movement is made in the vertical direction. In the present embodiment, as shown in FIG. 2, the screw shaft is formed in a horizontal direction in which the pair of the first sliding surface 15t and the second sliding surface 18t is perpendicular to both the axis x direction and the vertical direction. It can be said that two pairs are provided so as to sandwich the 11a and separated from the screw shaft 11a by a predetermined distance.

The pair of the first sliding surface 15t and the second sliding surface 18t is preferably arranged symmetrically with respect to the screw shaft 11a. In this case, the linear movement (horizontal movement) of the first moving body 15 can be converted into the linear movement (elevating movement) of the second moving body 18 in a well-balanced manner, and the load (reaction force) received by the second moving body 18 can be converted. ) Can also be supported by the base 40 in a well-balanced manner via the first moving body 15 and the like.

As a specific configuration example, the pair of the first sliding surface 15t and the second sliding surface 18t can be provided by a general linear guide. That is, with reference to FIG. 2, the first sliding surface 15t is provided as a concave surface of a member having a concave cross section called a "block" of the linear guide, and the second sliding surface 18t is referred to as a "rail" of the linear guide. It may be provided as the lower surface of a member having a rectangular cross section called. For example, two commercially available linear guides are disassembled, two "blocks" are fixed to the upper surface of the main body member of the first sliding body 15, and two "rails" are fixed to the second sliding body 18. It can be arranged by fixing it to the lower surface of the main body member.

A second sliding guide 19 extending in the vertical direction (direction perpendicular to the axis x direction) is provided on the inner surface of the outer frame wall 12d, and the second sliding body 18 is provided with the second sliding. A second sliding portion 18s that can slide and move with respect to the guide 19 is provided.

In the present embodiment, as shown in FIGS. 3 and 4, the pair of the second sliding guide 19 and the second sliding portion 18s is also screwed in the horizontal direction perpendicular to both the axis x direction and the vertical direction. Two pairs are provided so as to sandwich the shaft 11a and separated from the screw shaft 11a by a predetermined distance.

Further, in the present embodiment, a load cell 21 is provided on the upper surface of the second moving body 18, and the load cell 21 moves in the vertical direction while penetrating the opening 12h of the frame top plate 12g.

Further, at positions adjacent to the inside and outside of the load cell 21, a coil spring 28 in a constantly compressed state (corresponding to a load of about 10 kN) is inserted between the upper surface of the second moving body 18 and the lower surface of the frame top plate 12 g. (See FIG. 3).

Here, the predetermined angle is selected from the range of 5.7 ° to 11.3 °. 5.7 ° is the value obtained by solving tan θ = 1/10, and 11.3 ° is the value obtained by solving tan θ = 1/5. As a result, a boost ratio of 5 to 10 times can be realized.

It has been confirmed by an actual verification experiment by the present inventor that the electric lift device 10 of the present embodiment operates effectively in these angle ranges.

The moving stroke of the second moving body 18 is sufficient to be about 1 mm in an application described later (an application in which a material in which a plurality of electrode layers are fired on a metal foil is used as a work W).

The moving speed of the second moving body 18 is, for example, 10 mm / sec. This speed corresponds to the moving speed of the first moving body 15 (that is, the nut 11d) of 50 mm / sec when the boost ratio is 5 times, and 100 mm / sec when the boost ratio is 10 times. 1 Corresponds to the moving speed of the moving body 15 (that is, the nut 11d). Such a moving speed of the nut 11d can be realized by a commercially available general electric motor 13 and a ball screw 11. In particular, when the electric motor 13 is a servomotor, it is possible to realize more accurate and more responsive control.

[Action of electric lift device 10]
Next, the operation of the electric lift device 10 of the present embodiment will be described.

When the electric motor 13 is driven desiredly (for example, it can be controlled by a control device 35 described later), the output shaft 13s of the electric motor 13 rotates. Next, the motor-side pulley 13p, the screw shaft-side pulley 11p, and the belt 14 function as a rotational force transmission mechanism, and the rotational force of the output shaft 13s is transmitted as the rotational force of the screw shaft 11a. Then, the rotation of the screw shaft 11a is converted into a linear movement of the nut 11d in the axis x direction by the rotary motion / linear motion conversion function of the ball screw 11.

As a result, the first moving body 15 fixed to the nut 11d moves linearly in the axis x direction. At this time, the movement of the first moving body 15 in the axial direction is carried out more smoothly by the interaction between the first sliding guide 16 and the first sliding portion 15s (the action of promoting smooth sliding movement).

Then, when the nut 11d and the first moving body 15 linearly move in the axis x direction, the second moving body 18 moves in the axis x direction due to the sliding movement between the first sliding surface 15t and the second sliding surface 18t. It moves linearly in the vertical direction. At this time, the movement of the second moving body 18 is carried out more smoothly due to the interaction between the second sliding guide 19 and the second sliding portion 18s (the action of promoting smooth sliding movement).

Here, if the pair of the first sliding surface 15t and the second sliding surface 18t is arranged symmetrically with respect to the screw shaft 11a, the linear movement (horizontal movement) of the first moving body 15 is balanced with the second movement. It can be converted into linear movement (up and down movement) of the body 18, and the load (reaction force) received by the second moving body 18 is also supported by the base 40 in a well-balanced manner via the first moving body 15 and the like. Can be done.

That is, by driving the electric motor 13 desiredly, the movement of the second moving body 18 is controlled with high accuracy. In particular, when the electric motor 13 is a servomotor, it is possible to realize more accurate and more responsive control.

In particular, since the coil spring 28 in the compressed state constantly presses the ball screw 11 against the bearing 11b side, the influence of backlash that may occur on the ball screw 11 can be eliminated, and more accurate elevating control can be realized. it can.

Further, the cushioning action of the belt 14 can alleviate the impact transmitted to the electric motor 13 via the screw shaft 11a.

[Effect of electric lift device 10]
As described above, according to the electric lift device 10 of the present embodiment, the rotational force of the output shaft 13s of the electric motor 13 is used as the rotational force of the screw shaft 11a of the ball screw 11 and fixed to the nut 11d of the ball screw 11. When the first moving body 15 moves linearly in the axis x direction, the second moving body 18 moves linearly in a direction perpendicular to the axis x direction, so that the movement of the second moving body 18 is increased by the electric motor 13. It is possible to control with precision.

Further, according to the electric lift device 10 of the present embodiment, the screw shaft 11a penetrates the first moving body 15 in the axial direction, and a pair of bearings 11b and 11c are provided on both sides of the first moving body 15. , The whole device is compact. Further, according to the electric lift device 10 of the present embodiment, the electric motor 13 and the screw shaft 11a are in a positional relationship completely overlapping in the axis x direction when viewed in the linear movement direction of the second moving body 18. As a result, the entire device is compact. The electric lift device 10 of the present embodiment is suitable for installation in the glove box because the hydraulic device is not adopted, that is, there is no concern that the surroundings are contaminated by oil.

Further, according to the electric lift device 10 of the present embodiment, the rotational force transmission mechanism that transmits the rotational force of the output shaft 13s as the rotational force of the screw shaft 11a is perpendicular to the axis x of the output shaft 13s and the screw shaft 11a. It has a belt 14 spanned by a motor-side pulley 13p of the output shaft 13s and a screw shaft-side pulley 11p of the screw shaft 11a so as to orbit on a circular orbit extending in a plane. By adopting such a configuration, the rotational force transmission mechanism is compact, and the entire device is even more compact. Therefore, the electric lift device 10 of the present embodiment is more suitable for being installed in the glove box.

Further, according to the electric lift device 10 of the present embodiment, the bearings 11b and 11c of the screw shaft 11a are provided with a pair with respect to both ends of the screw shaft 11a, and the belt 14 is on the outside of one of the bearings 11b. It is hung at the protruding portion of the screw shaft 11a protruding from the above. By adopting such a configuration, the entire device is even more compact, and the electric lift device 10 of the present embodiment is even more suitable for installation in the glove box.

Further, according to the electric lift device 10 of the present embodiment, the frame 12 is provided with the first sliding guide 16 extending in parallel with the axis x direction, and the first moving body 15 is provided with respect to the first sliding guide 16. By providing the first sliding portion 15s that can slide and move with each other, the movement of the first moving body 15 in the axial direction becomes more due to the interaction between the two (the action of promoting smooth sliding movement). It will be carried out smoothly.

Further, according to the electric lift device 10 of the present embodiment, the pair of the first sliding surface 15t and the second sliding surface 18t is a screw shaft in a horizontal direction perpendicular to both the axis x direction and the vertical direction. Two pairs are provided so as to sandwich the 11a and separated from the screw shaft 11a by a predetermined distance. As a result, when the reaction force or the like at the time of roll pressing acting on the second moving body 18 is transmitted to the first moving body 15 via the pair of the first sliding surface 15t and the second sliding surface 18t. , The load directly received by the ball screw 11 can be reduced. As a result, the possibility that a defect will occur in the ball screw 11 can be remarkably reduced.

Further, according to the electric lift device 10 of the present embodiment, the pair of the first sliding guide 16 and the first sliding portion 15s also has a screw shaft in a horizontal direction perpendicular to both the axis x direction and the vertical direction. Two pairs are provided so as to sandwich the 11a and separated from the screw shaft 11a by a predetermined distance. Also by this, when the reaction force at the time of roll pressing acting on the second moving body 18 is transmitted to the first moving body 15 via the pair of the first sliding surface 15t and the second sliding surface 18t. The load directly received by the ball screw 11 can be reduced. As a result, the possibility that a defect will occur in the ball screw 11 can be remarkably reduced.

Further, according to the electric lift device 10 of the present embodiment, the frame 12 is provided with the second sliding guide 19 extending perpendicularly to the axis x direction, and the second moving body 18 is provided with the second sliding guide 19 with respect to the second sliding guide 19. By providing the second sliding portion 18s that can slide and move with each other, the direction perpendicular to the axial direction of the second moving body 18 due to the interaction between the two (the action of promoting smooth sliding movement). Movement is carried out more smoothly.

[Structure of roll press device 20]
The configuration of the roll press device 20 of the present embodiment will be described with reference to FIGS. 1 and 2.

The roll press device 20 of the present embodiment includes a pair of the above-mentioned electric lift devices 10. Each (one-side roll support portion) of the pair of lower roll supports 22 is supported by the pair of second moving bodies 18 of the pair of electric lift devices 10. Each of the pair of lower roll supports 22 is placed on the corresponding second moving body 18 via the load cell 21. The pair of lower roll supports 22 have bearings and rotatably support the lower roll 23.

The upper roll 24 is arranged so as to face the lower roll 23. The work W is press-formed (consolidated) by utilizing the gap formed between the lower roll 23 and the upper roll 24.

The upper roll 24 is rotatably supported by a pair of upper roll supports 25 (other side roll support portions). Each of the pair of upper roll supports 25 is fixed to each of the pair of roll frames 26 provided on the base 40 from the outside via, for example, bolts and screws (not shown).

Further, as shown in FIG. 2, the facing inner surfaces of the roll frames 26 are provided with the facing third sliding guides 27 extending perpendicularly to the axis x direction, and the pair of lower roll supports 22 are provided with the facing third sliding guides 27. Each is provided with a third sliding portion 22s that can slide and move with respect to each of the opposing third sliding guides 27. Further, the lower portion 26a of the roll frame 26 fixes the frame bottom plate 12a of the electric lift device 10 to the base 40. As a result, the layout is such that a part of the electric lift device 10 is inserted inside the roll frame 26, and the entire device is compact.

With the above configuration, the pair of electric lift devices 10 use the electric motor 13 to move the lower roll support 22 and the upper roll support 25 relative to each other to move the gap between the lower roll 23 and the upper roll 24. It is designed to function as a mobile device to control.

Further, returning to FIG. 1, four displacement amount sensors 30 for measuring the local displacement amount at a predetermined position of the lower roll 23 and the upper roll 24, for example, a position 30 mm from each of the left and right ends are provided ((). Only three are shown in FIG. 1). The displacement amount sensor 30 is fixed to the base 40 via a displacement amount sensor frame 31 different from the roll frame 26. Further, the displacement amount sensor 30 is connected to a control device 35 for controlling the electric motor 13. Specifically, the displacement amount sensor 30 of the present embodiment is a non-contact type range finder.

As an example, both the lower roll 23 and the upper roll 24 have a diameter of about 30 to 50 cm, and both have an axial length (width) of about 15 to 50 cm. The roll press device 20 as a whole has a size that fits in a length of 180 cm × a width of 150 cm (× a depth of 90 cm).

[Basic operation of roll press device 20]
Next, the basic operation of the roll press device 20 of the present embodiment will be described.

As a basic operation, the position of the second moving body 18 is controlled with desired high accuracy by driving each electric motor 13 of the pair of electric lift devices 10 as desired, and the pair of lower roll supports 22 Each position is controlled with desired high precision.

As a result, the size of the gap formed between the lower roll 23 and the upper roll 24 can be controlled with desired high accuracy, and by extension, the plate thickness accuracy of the work W after press forming is made uniform with high accuracy. Can be maintained at.

[Specific example of work W]
Here, as the work W, a material in which a plurality of electrode layers (a broad concept including a solid electrolyte layer) is fired on a metal foil is assumed. Specifically, for example, as shown in FIG. 5, three layers of a negative electrode layer 82, a solid electrolyte layer 83, and a positive electrode layer 84 are formed in order from the bottom, using a copper foil 81 intended to function as a negative electrode as a base material. It is a material. Alternatively, the material may be a material in which three layers of a positive electrode layer, a solid electrolyte layer, and a negative electrode layer are formed in this order from the bottom, using an aluminum foil intended to function as a positive electrode as a base material. The plurality of electrode layers are intermittently coated and fired on a continuous metal foil to form individual work W (see FIGS. 5 and 7).

The thickness of the material is, for example, 0.38 mm before press molding (consolidation), and by setting this to 0.34 mm by press molding (consolidation), the space between the electrode layers and each electrode layer is removed or reduced. Is intended. In this case, the size of the gap formed between the lower roll 23 and the upper roll 24 during press molding (consolidation) may be set to 0.25 to 0.3 mm in consideration of the springback of the material. preferable.

According to the verification results by the present inventor, it is an object of press molding (consolidation) of a material in which a plurality of electrode layers are fired on a metal foil to remove or reduce the space between the electrode layers and each electrode layer. In this case, the gap formed between the lower roll 23 and the upper roll 24 during press molding (consolidation) (also referred to as “consolidation gap” in the present specification) is 70 to 90% of the thickness of the work W before consolidation. It is effective to set it to a constant value in the range of.

Further, according to the result of further verification by the present inventor, a material in which a plurality of electrode layers are fired on a metal foil is press-formed (consolidated) to remove or reduce the space between the electrode layers and each electrode layer. When the purpose is to set the feed rate of the work W to 1 to 100 mm / sec, the consolidation gap is 1 to 10 Hz (1 to 10 per second) in the range of 70 to 110% of the thickness of the work W before consolidation. It is also effective to generate an impact load by performing intermittent pressurization in a cycle of (times). In this case, the power consumption with respect to the compression rate can be reduced, and an energy saving effect can be obtained.

To give a specific example, the thickness of the material is 0.38 mm before press molding (consolidation), and by setting this to 0.34 mm by press molding (consolidation), the thickness of the material is set to 0.34 mm between the electrode layers and in each electrode layer. When the space is intended to be removed or reduced, the size of the gap formed between the lower roll 23 and the upper roll 24 during press molding (consolidation) is in the range of 0.27 mm to 0.42 mm. It is effective to fluctuate at 1 to 10 Hz (1 to 10 times per second) (when the feed rate of the work W is 1 to 100 mm / sec).

The details of the change in the size of the gap with the passage of time may be a square pulse shape, a sawtooth wave shape, or a sinusoidal shape.

According to the verification result by the present inventor, when the above-mentioned variable value is adopted as the consolidation gap (when intermittent pressurization is applied), the material is press-formed (consolidated) as compared with the case where a constant value is adopted. It has been confirmed that the power consumption with respect to the compression rate compressed by the above can be reduced by about 10%.

[Displacement compensation of roll press device 20]
During press molding (consolidation), the reaction force from the work W causes the upper roll 24 (including the upper roll support 25 that supports the upper roll 24) to escape upward, and the lower roll 23 (the lower roll 23). (Also with the lower roll support 22) that supports it tries to escape downwards. This situation is illustrated by a alternate long and short dash line in FIG.

The roll press device 20 of the present embodiment is provided with four displacement amount sensors 30 as shown in FIGS. 1 and 6 in order to enable coping (compensation) for the occurrence of such escape (displacement). .. That is, the control device 35 performs control in consideration of the displacements of the upper roll 24 and the lower roll 23 based on the measurement results of each of the four displacement amount sensors 30. Specifically, for example, it is possible to carry out further "pushing control" according to the displacement amount of the upper roll 24 and the lower roll 23.

In the roll press device 20 of the present embodiment, since the displacement amount sensor frame 31 that supports the displacement amount sensor 30 is different from the roll frame 26, the mounting position of the displacement amount sensor 30 is various during press molding (consolidation). It is not affected by the deflection of the elements (lower roll 23, upper roll 24, lower roll support 22, upper roll support 25). Therefore, the measurement of the displacement amount sensor 30 and the feedback control based on the result can be performed with high accuracy.

[Load monitoring / load control of roll press device 20]
In the roll press device 20 of the present embodiment, the lower roll support 22 is placed on the second moving body 18 of the electric lift device 10 via the load cell 21. By monitoring the value of the load cell 21, for example, the occurrence of a load abnormality on the lower roll 23 and / or the upper roll 24 can be monitored.

Further, by connecting the load cell 21 to the control device 35, it is possible to carry out load control using the measurement result of the load cell 21. For example, it is possible to set a target load value or a target load range in advance and perform feedback control based on the target load value or the target load range.

[Structure of roll press device 50]
Next, FIG. 7 is a schematic view of the roll press device 50 according to the second embodiment of the present invention. The roll press device 50 of the present embodiment is the roll press device 20 of the first embodiment to which the components described later are added. In FIG. 7, the components of the roll press device 20 of the first embodiment are not shown except for the lower roll 23 and the upper roll 24. Further, in the present embodiment, the lower roll 23 and the upper roll 24 are rotationally driven by servomotors, respectively.

As shown in FIG. 7, the components added in the present embodiment include a feed roll 51 as a work supply device for supplying the work W so as to pass through the gap between the lower roll 23 and the upper roll 24. A position sensor 52 that detects the tip position of the work W supplied into the gap by the feed roll 51. The position sensor 52 is connected to the control device 35. The feed roll 51 is also rotationally driven by a servomotor.

Specifically, the position sensor 52 of the present embodiment is a non-contact type installed at a position of a basic predetermined distance C from the narrowest portion of the gap (corresponding to the axial position of the lower roll 23 and the upper roll 24). It is a range finder. For example, the position sensor 52 is a laser type position sensor, and when the tip F (see FIG. 7) of the work W passes the detected position of the position sensor 52, the position sensor 52 of the position sensor 52 changes by the amount of change in the thickness of the work W. The output changes. By detecting this change, it is possible to detect that the tip F of the work W has reached the detected position of the position sensor 52, that is, the tip position of the work W can be detected. Alternatively, the position sensor 52 may be a sensor that discriminates the color of the work W. By discriminating the color of the electrode or the like on the upper surface of the work W, it is possible to detect that the tip F of the work W has reached the detected position of the position sensor 52, that is, the tip position of the work W is detected. be able to.

On the other hand, if the supply speed of the work W by the feed roll 51 is known, the time obtained by dividing the basic predetermined distance C by the supply speed from the time when the tip F of the work W reaches the detected position of the position sensor 52 After the lapse of time, the tip position of the work W reaches the narrowest portion of the gap. The supply speed of the work W may be acquired from the information of the drive system of the feed roll 51, or may be measured by providing the encoder 53 on the feed roll 51.

The inventor of the present invention press-molds a material in which a plurality of electrode layers are fired on a metal foil, and when the material is put into the gap between the lower roll and the upper roll for consolidation as a work W, the work end portion. It was found that a concentrated load may be generated in the material, and in that case, the material (edge) may be chipped or cracked.

Further, the present inventor sets the gap as a consolidation gap when the tip position of the work W passes through the narrowest portion in the gap by a first predetermined distance, that is, the tip position of the work W is set. It is possible for the material (edge) to maintain the gap wider than the consolidation gap (and wider than the thickness of the work W) until the narrowest portion in the gap is passed by the first predetermined distance. It was found that it is extremely effective in preventing chipping and cracking. The first predetermined distance depends on the type and thickness of the material, but is preferably selected within the range of 0.001 to 3.000 mm, preferably within the range of 1 to 3 mm.

Based on these findings, the control device 35 of the present embodiment is based on the detection result by the position sensor 52 and the supply speed of the work W by the feed roll 51 acquired in advance, and the electric motor of the electric lift device 10. By controlling 13, when the tip position of the work W passes through the narrowest portion in the gap by the first predetermined distance, the gap is used as the consolidation gap, and the tip position of the work W is set. The gap is maintained wider than the consolidation gap (further, wider than the thickness of the work W) until it passes through the narrowest portion in the gap by a first predetermined distance.

In addition, the present inventor also generates a concentrated load when a material in which a plurality of electrode layers are fired on a metal foil is press-molded, and the material comes out from the gap between the lower roll and the upper roll for consolidation. In that case, it was found that the material (edge) is chipped or cracked.

Further, the present inventor keeps the gap in the consolidation gap until the rear end position of the work W remains up to the narrowest portion in the gap and reaches the second predetermined distance, and the rear end position of the work W is set. When the remaining second predetermined distance to the narrowest portion in the gap is reached, the material (edge portion) can be made wider than the consolidation gap (further wider than the thickness of the work W). It was found that it is extremely effective in preventing chipping and cracking. The second predetermined distance also depends on the type and thickness of the material, but is preferably selected within the range of 0.001 to 3.000 mm, preferably within the range of 1 to 3 mm.

In the present embodiment, even when the rear end R (see FIG. 7) of the work W passes the detected position of the position sensor 52, the output of the position sensor 52 changes by the change in the thickness of the work W. By detecting this change, it is possible to detect that the rear end position of the work W has reached the detected position of the position sensor 52, that is, the rear end position of the work W can also be detected.

Based on these findings, the control device 35 of the present embodiment is based on the detection result by the position sensor 52 and the supply speed of the work W by the feed roll 51 acquired in advance, and the electric motor of the electric lift device 10. By controlling 13, the gap is maintained in the consolidation gap until the rear end position of the work W remains to the narrowest portion in the gap and reaches the second predetermined distance, and the rear end position of the work W is the said. When the second predetermined distance remains to the narrowest portion in the gap, the gap is made wider than the consolidation gap (further, wider than the thickness of the work W).

Further, in the present embodiment, since the lower roll 23 and the upper roll 24 are rotationally driven by the servomotor, it is possible to synchronize with the feed roll 51 with high accuracy, thereby feeding the work W with high accuracy. Control can be realized. Further, when heat treatment is applied to the lower roll 23 and the upper roll 24, thermal deformation (particularly diameter change) may occur in the lower roll 23 and the upper roll 24. For example, temperature detection by a temperature sensor may be performed. By using it, it is possible to implement appropriate compensation control.

[Action of roll press device 50]
According to the roll press device 50 of the present embodiment, the position sensor 52 detects that the tip position of the work W has reached the detected position of the position sensor 52. Then, the electric motor 13 of the electric lift device 10 is controlled by the control device 35 based on the basic predetermined distance C, the first predetermined distance, and the supply speed of the work W, and the tip position of the work W is the narrowest in the gap. When the portion has passed the first predetermined distance, the gap is adjusted to the consolidation gap with high accuracy. Then, the gap is maintained wider than the consolidation gap (further, wider than the thickness of the work W) until the tip position of the work W passes through the narrowest portion in the gap by a first predetermined distance.

As a result, it is possible to effectively prevent the generation of a concentrated load when the work W is put into the gap, and it is possible to effectively prevent the front edge portion of the work W from being chipped or cracked.

Further, according to the roll press device 50 of the present embodiment, the position sensor 52 detects that the rear end position of the work W has reached the detected position of the position sensor 52. Then, the electric motor 13 of the electric lift device 10 is controlled by the control device 35 based on the basic predetermined distance C, the second predetermined distance, and the supply speed of the work W, and the rear end position of the work W is within the gap. The gap is maintained in the consolidation gap until the remaining second predetermined distance to the narrowest portion, and when the rear end position of the work W reaches the narrowest remaining portion in the gap and reaches the second predetermined distance. The gap is wider than the consolidation gap (further, wider than the thickness of the work W).

As a result, it is possible to effectively prevent the generation of a concentrated load when the work W comes out of the gap, and it is possible to effectively prevent the trailing edge of the work W from being chipped or cracked.

Even when the roll press device 50 of the present embodiment is used, it is effective that the consolidation gap is set to a constant value in the range of 70 to 90% of the thickness of the work W before consolidation. Alternatively, the consolidation gap is set in a cycle of 1 to 10 Hz (1 to 10 times per second) in the range of 70 to 110% of the thickness of the work W before consolidation, with the feed rate of the work W being 1 to 100 mm / sec. It is effective to perform a constant periodic operation. In the latter case, as described above, the power consumption with respect to the compressibility at which the material is compressed by press molding (consolidation) can be reduced by about 10%.

[Structure of roll press device 150]
Next, FIG. 8 is a schematic view of the roll press device 150, which is a modification of the roll press device 50 according to the second embodiment of the present invention. The roll press device 150 also has the components described later added to the roll press device 20 of the first embodiment. Also in FIG. 8, the components of the roll press device 20 of the first embodiment are not shown except for the lower roll 23 and the upper roll 24. Further, also in the modified example, the lower roll 23 and the upper roll 24 are rotationally driven by servomotors, respectively.

As shown in FIG. 8, the components added in the modification include a feed roll 151 as a work supply device that supplies the work W so as to pass through the gap between the lower roll 23 and the upper roll 24. A position sensor 152 that detects the tip position of the work W supplied into the gap by the feed roll 151. The position sensor 152 is connected to the control device 35. The feed roll 151 is also rotationally driven by a servomotor.

In the roll press device 50 of FIG. 7, the feed roll 51 is arranged on the upstream side of the lower roll 23 and the upper roll 24 when viewed in the work supply direction, but in the roll press device 150 of the modified example, the feed roll 51 is arranged. 151 is arranged on the downstream side of the lower roll 23 and the upper roll 24.

Similar to the position sensor 52 of FIG. 7, the position sensor 152 of the modified example also has a basic predetermined distance C from the narrowest portion of the gap (corresponding to the axial position of the lower roll 23 and the upper roll 24). It is a non-contact type range finder installed at the position. When the tip F (see FIG. 8) of the work W passes the detected position of the position sensor 152, the output of the position sensor 152 changes by the change in the thickness of the work W. By detecting this change, it is possible to detect that the tip F of the work W has reached the detected position of the position sensor 152, that is, the tip position of the work W can be detected.

On the other hand, if the supply speed of the work W by the feed roll 151 is known, the time obtained by dividing the basic predetermined distance C by the supply speed from the time when the tip F of the work W reaches the detected position of the position sensor 152 After the lapse of time, the tip position of the work W reaches the narrowest portion of the gap. The supply speed of the work W may be acquired from the information of the drive system of the feed roll 151, or may be measured by providing the encoder 153 on the feed roll 151.

As described above for the roll press device 50 of the second embodiment, the present inventor has used the lower roll and the upper roll for consolidation when press-molding a material in which a plurality of electrode layers are coated on a metal foil. It has been found that a concentrated load may be generated at the end of the work when the material is put into the gap between the works as the work W, and in that case, the material (edge) is chipped or cracked. Further, the present inventor sets the gap as a consolidation gap when the tip position of the work W passes through the narrowest portion in the gap by a first predetermined distance, that is, the tip position of the work W is set. It is possible for the material (edge) to maintain the gap wider than the consolidation gap (and wider than the thickness of the work W) until the narrowest portion in the gap is passed by the first predetermined distance. It was found that it is extremely effective in preventing chipping and cracking. The first predetermined distance depends on the type and thickness of the material, but is preferably selected within the range of 0.001 to 3.000 mm, preferably within the range of 1 to 3 mm.

Based on these findings, the control device 35 of the modified example is based on the detection result by the position sensor 152 and the supply speed of the work W by the feed roll 151 acquired in advance, and the electric motor of the electric lift device 10. By controlling 13, when the tip position of the work W passes through the narrowest portion in the gap by the first predetermined distance, the gap is used as the consolidation gap, and the tip position of the work W is set. The gap is maintained wider than the consolidation gap (further, wider than the thickness of the work W) until it passes through the narrowest portion in the gap by a first predetermined distance.

Further, as described above for the roll press device 50 of the second embodiment, the inventor of the present invention press-molds a material in which a plurality of electrode layers are coated on a metal foil. It was found that a concentrated load may be generated even when the material comes out from the gap between the rolls, and even in that case, the material (edge) is chipped or cracked. Further, the present inventor keeps the gap in the consolidation gap until the rear end position of the work W remains up to the narrowest portion in the gap and reaches the second predetermined distance, and the rear end position of the work W is set. When the remaining second predetermined distance to the narrowest portion in the gap is reached, the material (edge portion) can be made wider than the consolidation gap (further wider than the thickness of the work W). It was found that it is extremely effective in preventing chipping and cracking. The second predetermined distance also depends on the type and thickness of the material, but is preferably selected within the range of 0.001 to 3.000 mm, preferably within the range of 1 to 3 mm.

In the modified example, even when the rear end R (see FIG. 8) of the work W passes through the detected position of the position sensor 152, the output of the position sensor 152 changes by the change in the thickness of the work W. By detecting this change, it is possible to detect that the rear end position of the work W has reached the detected position of the position sensor 152, that is, the rear end position of the work W can also be detected.

Based on these findings, the control device 35 of the modified example is based on the detection result by the position sensor 152 and the supply speed of the work W by the feed roll 151 acquired in advance, and the electric motor of the electric lift device 10. By controlling 13, the gap is maintained in the consolidation gap until the rear end position of the work W remains to the narrowest portion in the gap and reaches the second predetermined distance, and the rear end position of the work W is the said. When the second predetermined distance remains to the narrowest portion in the gap, the gap is made wider than the consolidation gap (further, wider than the thickness of the work W).

Further, also in the modified example, since the lower roll 23 and the upper roll 24 are rotationally driven by the servomotor, it is possible to synchronize with the feed roll 151 with high accuracy, thereby feeding the work W with high accuracy. Control can be realized.

In particular, according to the modification, since the feed roll 151 is arranged on the downstream side of the lower roll 23 and the upper roll 24, the work W in a state of being compacted and having increased hardness is brought out in contact with the feed roll 151. As a result, a sufficient nip pressure can be applied to the work W. Therefore, the occurrence of slip between the feed roll 151 and the work W is remarkably suppressed, and more accurate feed control of the work W can be realized.

Further, in the case of the roll press device 50 of FIG. 7, there is a concern that the work W in a state where the hardness before consolidation is relatively low may be undesirably damaged by the feed roll 51. It frees you from such concerns.

In addition, also in the modified example, when the lower roll 23 and the upper roll 24 are subjected to the heat treatment, the lower roll 23 and the upper roll 24 may be thermally deformed (particularly, the diameter is changed). By using the temperature detection by the temperature sensor, it is possible to carry out appropriate compensation control.

[Action of roll press device 150]
Similar to the roll press device 50 of the second embodiment, the roll press device 150 of the modified example also detects that the tip position of the work W has reached the detected position of the position sensor 152 by the position sensor 152. Then, the electric motor 13 of the electric lift device 10 is controlled by the control device 35 based on the basic predetermined distance C, the first predetermined distance, and the supply speed of the work W, and the tip position of the work W is the narrowest in the gap. When the portion has passed the first predetermined distance, the gap is adjusted to the consolidation gap with high accuracy. Then, the gap is maintained wider than the consolidation gap (further, wider than the thickness of the work W) until the tip position of the work W passes through the narrowest portion in the gap by a first predetermined distance.

As a result, it is possible to effectively prevent the generation of a concentrated load when the work W is put into the gap, and it is possible to effectively prevent the front edge portion of the work W from being chipped or cracked.

Further, as in the roll press device 50 of the second embodiment, the roll press device 150 of the modified example also detects that the rear end position of the work W has reached the detected position of the position sensor 152 by the position sensor 152. Will be done. Then, the electric motor 13 of the electric lift device 10 is controlled by the control device 35 based on the basic predetermined distance C, the second predetermined distance, and the supply speed of the work W, and the rear end position of the work W is within the gap. The gap is maintained in the consolidation gap until the remaining second predetermined distance to the narrowest portion, and when the rear end position of the work W reaches the narrowest remaining portion in the gap and reaches the second predetermined distance. The gap is wider than the consolidation gap (further, wider than the thickness of the work W).

As a result, it is possible to effectively prevent the generation of a concentrated load when the work W comes out of the gap, and it is possible to effectively prevent the trailing edge of the work W from being chipped or cracked.

Even when the roll press device 150 of the modified example is used, it is effective that the consolidation gap is set to a constant value in the range of 70 to 90% of the thickness of the work W before consolidation. Alternatively, the consolidation gap is set in a cycle of 1 to 10 Hz (1 to 10 times per second) in the range of 70 to 110% of the thickness of the work W before consolidation, with the feed rate of the work W being 1 to 100 mm / sec. It is effective to perform a constant periodic operation. In the latter case, as described above, the power consumption with respect to the compressibility at which the material is compressed by press molding (consolidation) can be reduced by about 10%.

[Load control of roll press devices 50 and 150]
As described above, in both the roll press devices 50 and 150, the lower roll support 22 is placed on the second moving body 18 of the electric lift device 10 via the load cell 21 as in the roll press device 20. There is. It is also possible to control the electric motor 13 of the electric lift device 10 by utilizing the change in the load value detected by the load cell 21.

The control method of the electric motor 13 of the electric lift device 10 described above with reference to FIGS. 7 and 8 is a method utilizing detecting the front end position and the rear end position of the work W by the position sensors 52 and 152. Therefore, in principle, when distortion, coating unevenness, or the like exists at the front end portion or the rear end portion of the work W, the error of position detection by the position sensors 52 and 152 becomes large, and the electric lift device 10 There is a possibility that the electric motor 13 of the above cannot be properly controlled.

On the other hand, the change in the load value detected by the load cell 21 is caused by the work W actually abutting on the lower roll 23 and / or the upper roll 24, and thus the electric lift device is utilized by utilizing this. According to the method of controlling the electric motor 13 of 10, even if distortion, coating unevenness, or the like is present at the front end portion or the rear end portion of the work W, the degree of adverse effect due to the distortion is small.

More specifically, when the present inventor press-molds a material in which a plurality of electrode layers are coated on a metal foil, the present inventor works the material in the gap between the lower roll and the upper roll for consolidation. It was found that a concentrated load may be generated at the end of the work when the work is charged, and in that case, the material (edge) may be chipped or cracked. Further, the present inventor starts to reduce the gap to the consolidation gap when the load cell 21 detects a predetermined load increase amount per unit time, that is, the load cell 21 starts to reduce the load increase amount per unit time. Keeping the gap wider than the consolidation gap (however, narrower than the thickness of the work W (the state before consolidation)) until the detection of the above causes chipping or cracking of the material (edge). It was found that it is extremely effective in preventing this.

According to the experimental results by the present inventor, when the material in which a plurality of electrode layers are coated on the metal foil is used as the work W, the load increase amount per unit time is 100 to 1000 N / msec, preferably 100 to 100 to. It is effective to set it in the range of 200 N / msec.

Based on these findings, the control devices 35 of the roll press devices 50 and 150, as shown in FIG. 9, are the electric motors of the electric lift device 10 during the operation of the feed rolls 51 and 151 (an example of the work supply device). By controlling 13, the load cell 21 starts to reduce the gap to the consolidation gap when the load cell 21 detects the load increase amount per unit time (see FIG. 9B) (feed rolls 51 and 151 operate. (Continued) (the state in which the reduction is completed is shown in FIG. 9C), and the gap is consolidated until the load cell 21 detects the amount of load increase per unit time. It is designed to be maintained wider than (however, narrower than the thickness of the work W (the state before consolidation)) (see FIG. 9A).

In addition, when the present inventor press-molds a material in which a plurality of electrode layers are coated on a metal foil, a concentrated load is also applied when the material comes out from the gap between the lower roll and the upper roll for consolidation. It was found that it may occur, and even in that case, the material (edge) may be chipped or cracked. Further, the present inventor maintains the gap in the consolidation gap until the load cell 21 detects the load reduction amount per unit time, and when the load cell 21 detects the load reduction amount per unit time. Then, starting to return the gap to a state wider than the consolidation gap (however, narrower than the thickness of the work W (the state before consolidation)) causes chipping or cracking of the material (edge). It was found that it is extremely effective in preventing.

According to the experimental results by the present inventor, when the material in which a plurality of electrode layers are fired on the metal foil is used as the work W, the load reduction amount is 100 to 1000 N / msec, preferably 100 to 200 N / msec. It is effective to set in the range.

Based on these findings, the control devices 35 of the roll press devices 50 and 150, as shown in FIG. 9, are the electric motors of the electric lift device 10 during the operation of the feed rolls 51 and 151 (an example of the work supply device). By controlling 13, the gap is maintained in the consolidation gap until the load cell 21 detects a predetermined load reduction amount per unit time (see FIG. 9D), and the load cell 21 When the load reduction amount per unit time is detected, the gap is started to be returned to a state wider than the consolidation gap (however, narrower than the thickness of the work W (state before consolidation)) (feed roll 51). , 151 continue to operate) (the state in which the return is completed is shown in FIG. 9E).

[Action by load control of roll press devices 50 and 150]
According to the roll press devices 50 and 150, when the tip position of the work W reaches the gap between the lower roll 23 and the upper roll 24 during the operation of the feed rolls 51 and 151, the load value detected by the load cell 21 increases. To do. Then, when the load cell 21 detects the load increase amount per unit time, the control devices 35 of the roll press devices 50 and 150 control the electric motor 13 of the electric lift device 10, so that the gap is a consolidation gap. Begins to be reduced. Until the load cell 21 detects the amount of load increase per unit time, the gap is maintained wider than the consolidation gap (however, narrower than the thickness of the work W (state before consolidation)).

In this way, when the load cell 21 detects the load increase amount per predetermined unit time by throwing the work W into the gap (after detecting the load), the control starts to reduce the gap to the consolidation gap. By carrying out this, the so-called biting of the work W can be preceded by the control, effectively avoiding the generation of a concentrated load at the time of loading the work, and the front edge of the work W is chipped or cracked. Can be effectively prevented.

Further, according to the roll press devices 50 and 150, during the operation of the feed rolls 51 and 151, the rear end position of the work W approaches the narrowest portion between the lower roll 23 and the upper roll 24 (still passing through). (No), the load value detected by the load cell 21 decreases. Then, when the load cell 21 detects the amount of load reduction per unit time, the control devices 35 of the roll press devices 50 and 150 control the electric motor 13 of the electric lift device 10, so that the gap is a consolidation gap. It begins to return to a wider state (however, it is narrower than the thickness of the work W (the state before consolidation)). The gap is maintained in the consolidation gap until the load cell 21 detects a predetermined load reduction amount per unit time.

In this way, when the rear end position of the work W approaches (has not yet passed) the narrowest portion in the gap and the load cell 21 detects the amount of load reduction per predetermined unit time, the gap is compacted. By implementing the control that starts to return to the state wider than the clearance, the control can be preceded by the so-called withdrawal of the work, effectively avoiding the generation of the concentrated load at the time of withdrawal of the work, and the work W. It is possible to effectively prevent the trailing edge from being chipped or cracked.

Even when the load control as described above is used, it is effective that the consolidation gap is set to a constant value in the range of 70 to 90% of the thickness of the work W before consolidation. Alternatively, the consolidation gap is set in a cycle of 1 to 10 Hz (1 to 10 times per second) in the range of 70 to 110% of the thickness of the work W before consolidation, with the feed rate of the work W being 1 to 100 mm / sec. It is effective to perform a constant periodic operation. In the latter case, as described above, the power consumption with respect to the compressibility at which the material is compressed by press molding (consolidation) can be reduced by about 10%.

The load sensor for detecting the load of the lower roll 23 and / or the upper roll 24 is not limited to the load cell 21, and another known load sensor can be arranged and used at an appropriate place.

[Structure of roll press device 60]
Next, FIG. 8 is a schematic view of the roll press device 60 of the third embodiment of the present invention, FIG. 9 is a schematic side view of the roll press device 60 of the present embodiment, and FIG. 10 is a schematic side view of FIG. It is a sectional view taken along line XX. The roll press device 60 of the present embodiment is a part of the components of the roll press device 50 of the second embodiment (lower roll support 22, upper roll support 25, roll frame 26, etc .: see FIGS. 2 and 9). The size of the upper roll support 25 is changed, the support mode of the upper roll support 25 is changed, and a backup roll or the like, which will be described later, is added.

In FIGS. 8 to 10, the lower roll support 22, the lower roll 23, the upper roll 24, the upper roll support 25, the roll frame 26, the third sliding guide 27, the feed roll 51, and the encoder 53 are excluded. , The illustration of the components of the roll press device 50 of the second embodiment is omitted.

As shown in FIGS. 8 to 10, the main components added in the present embodiment are backup rolls of 3 pairs upward and 3 pairs downward, for a total of 6 pairs.

The present inventor opposes the force of the upper roll 24 (including the upper roll support 25 and the roll frame 26 that support the upper roll 24) to escape upward due to the reaction force from the work W during press forming. In order to do so, an upper roll backup roll is provided on the upper surface side of the upper roll 24, and the lower roll 23 (including the lower roll support 22 that supports the lower roll 23) is generated by the reaction force from the work W during press forming. Providing a lower roll backup roll on the lower surface side of the lower roll 23 in order to counteract the force of escaping downward is effective for controlling to maintain the plate thickness accuracy after press molding with high accuracy and uniformness. Was found.

Further, in the present inventor, the force that the upper roll 24 tries to escape upward and the displacement that can occur in the upper roll 24 due to the force are divided into a one-sided region and a central region when viewed in the axial direction of the upper roll 24. It was found that it can be different from the other region. Similarly, the force that the lower roll 23 tries to escape downward and the displacement that can occur in the lower roll 23 due to the force are located on one side region, the central region, and the other side region when viewed in the axial direction of the lower roll 23. It was found that it can be different in. As a result, a pair of upper backup roll and lower backup roll is separately provided for one side region, the central region, and the other side region when viewed in the axial direction of the upper roll 24 and the lower roll 23, and the upper backup in each set is provided. It was further found that it is effective to control the interval between the roll and the lower backup roll independently.

Further, the present inventor intends that the upper backup rolls on the upper surface side of the upper roll 24 are provided in pairs on both sides of the upper roll 24 in a plan view so as to escape upward of the upper roll 24. It was found to be effective in countering the force of force in a well-balanced manner. Similarly, the lower backup rolls on the lower surface side of the lower roll 23 are provided in pairs on both sides of the lower roll 23 in a plan view, which balances the force of the lower roll 23 to escape downward. It was found to be effective in countering well.

Based on the above findings, in the roll press apparatus 60 of the present embodiment, pairs of upper backup rolls are separately provided in the one-side region, the central region, and the other-side region when viewed in the axial direction of the upper roll 24. A pair of lower backup rolls is provided separately for the one-side region, the central region, and the other-side region when viewed in the axial direction of the lower roll 23.

Specifically, the roll press device 60 of the present embodiment is arranged on the lower surface side of one side region (left region in FIG. 10) when viewed in the axial direction of the lower roll 23, and rolls with the lower roll 23. A pair of matching lower roll one-side backup rolls 61a and 61b and a pair of lower rolls 23 arranged on the lower surface side of a central region (central region in FIG. 10) when viewed in the axial direction and rolling with each other with the lower roll 23. A pair of lower rolls, the central backup rolls 62a and 62b, and the lower rolls 23, which are arranged on the lower surface side of the other side region (the right region in FIG. Rolls The other side backup rolls 63a and 63b are provided.

Further, the roll press device 60 of the present embodiment is arranged on the upper surface side of one side region (left region in FIG. 10) when viewed in the axial direction of the upper roll 24, and is a pair that rolls with each other with the upper roll 24. Upper roll One side backup rolls 64a and 64b and a pair of upper rolls arranged on the upper surface side of the central region (central region in FIG. 10) when viewed in the axial direction of the upper roll 24 and rolling with each other with the upper roll 24. A pair of upper rolls and other sides that are arranged on the upper surface side of the central backup rolls 65a and 65b and the other side region (the right side region in FIG. 10) when viewed in the axial direction of the upper roll 24 and roll with each other with the upper roll 24. It includes backup rolls 66a and 66b.

The pair of lower roll one-side backup rolls 61a and 61b are rotatably and commonly supported by the lower roll one-side backup roll support housing 61h, and the pair of lower roll central backup rolls 62a and 62b are lower rolls. The central backup roll support housing 62h is rotatably and commonly supported, and the pair of lower rolls and other side backup rolls 63a and 63b are rotatably and commonly supported by the lower roll other side backup roll support housing 63h. Is supported by.

The pair of upper roll one-sided backup rolls 64a and 64b are rotatably and commonly supported by the upper roll one-sided backup roll support housing 64h, and the pair of upper roll central backup rolls 65a and 65b are supported by the upper roll. The central backup roll support housing 65h is rotatably and commonly supported, and the pair of upper rolls and other side backup rolls 66a and 66b are rotatably and commonly supported by the upper roll and other side backup roll support housing 66h. Is supported by.

Further, in the roll press device 60 of the present embodiment, the lower roll one-side backup roll support housing 61h and the upper roll one-side backup roll support housing 64h are relatively moved to the lower roll one-side backup rolls 61a and 61b. An electric lift device 70 is provided as a one-side backup roll adjusting device that controls a gap between the upper roll one-side backup rolls 64a and 64b.

Similarly, in the roll press device 60 of the present embodiment, the lower roll central backup roll support housing 62h and the upper roll central backup roll support housing 65h are relatively moved to move the lower roll central backup rolls 62a and 62b and the upper roll. The same electric lift device 70 is provided as a central backup roll adjusting device that controls a gap between the central backup rolls 65a and 65b.

Further, in the roll press device 60 of the present embodiment, the lower roll other side backup roll support housing 63h and the upper roll other side backup roll support housing 66h are relatively moved to the lower roll other side backup rolls 63a and 63b. The same electric lift device 70 is provided as the other side backup roll adjusting device for controlling the gap between the upper roll and the other side backup rolls 66a and 66b.

In the present embodiment, as shown in FIG. 9, the upper roll one side backup roll support housing 64h, the upper roll center backup roll support housing 65h, and the upper roll other side backup roll support housing 66h are fixed to the roll frame 26. Has been done. On the other hand, the upper roll support 25 is supported by the roll frame 26 so as to be able to move up and down by about 1 mm above the fall prevention block 26c. Specifically, each of the pair of upper roll supports 25 is provided with a fourth sliding portion 25s that can slide and move with respect to each of the opposing third sliding guides 27.

Then, with respect to the upper roll one-side backup roll support housing 64h, the upper roll central backup roll support housing 65h, and the upper roll other side backup roll support housing 66h, the lower roll one-side backup roll support housing 61h, Each of the lower roll center backup roll support housing 62h and the lower roll other side backup roll support housing 63h is individually moved up and down by the corresponding electric lift device 70.

Further, each of the lower roll one-side backup roll support housing 61h, the lower roll center backup roll support housing 62h, and the lower roll other-side backup roll support housing 63h is provided on the roll frame 26 as shown in FIG. Fourth sliding portions 61s, 62s, 63s that can slide and move with respect to the third sliding guide 27 are provided.

On the other hand, in the roll press device 60 of the present embodiment, as shown in FIG. 8, the dimension of the work W in one side region after compaction is a non-contact type range finder 67a for measuring the distance to the upper surface of the region. It is measured by a non-contact range finder 67b that measures the distance to the lower surface of the region.

Similarly, the dimensions of the work W in the central region after consolidation are the non-contact rangefinder 68a that measures the distance to the upper surface of the region and the non-contact rangefinder 68b that measures the distance to the lower surface of the region. It is designed to be measured by.

Further, the non-contact type range finder 69a for measuring the distance to the upper surface of the area and the non-contact type range finder 69b for measuring the distance to the lower surface of the area are the dimensions of the work W in the other side region after consolidation. It is designed to be measured by.

Then, based on each of the above measurement results, the control device 35 causes the electric lift device 70 as the one-side backup roll adjustment device, the electric lift device 70 as the central backup roll adjustment device, and the electric lift device 70 as the other-side backup roll adjustment device. Each of the lift devices 70 is controlled independently.

The electric lift device 70 of the present embodiment has a configuration similar to that of the electric lift device 10 for moving the lower roll support 22 up and down.

The difference between the two is that the electric lift device 70 does not have the prism 12e and the frame top plate 12g, and the upper surfaces of the inner frame wall 12b and the outer frame wall 12d of the electric lift device 70 are fixed to the lower surface of the roll frame 26. It is a point that has been done.

The other configurations of the electric lift device 70 are substantially the same as those of the electric lift device 10. In the electric lift device 70, the same components as those of the electric lift device 10 are designated by the same reference numerals, and detailed description thereof will be omitted.

However, the size (dimensions) of each component of the electric lift device 70 may be different from the size (dimensions) of the corresponding component of the electric lift device 10. When the lift force (pressurizing force) of the electric lift device 70 is 200 kN specification (600 kN for the three electric lift devices on the left, right, and center), the roll diameter is φ450 mm, and the roll width is 500 mm, as an example, the frame bottom plate 12a The size is 15 cm × 90 cm in a plan view, the thickness is about 10 cm, the wall thickness of the inner frame wall 12b and the outer frame wall 12d is about 6 cm, the height is about 30 cm, and the wall of the central frame wall 12c. The thickness is about 6 cm and the height is about 15 cm. Further, in the electric lift device 70, as an example, the motor side pulley 13p and the screw shaft side pulley 11p both have a diameter of about 8 to 12 cm, and the width (thickness) of the motor side pulley 13p and the screw shaft side pulley 11p are both. It is about 4 cm, the width of the belt 14 is slightly narrower than this, about 3.5 cm, and the length of the belt 14 is the distance between the axis x of the screw shaft 11a and the output shaft 13s of the electric motor 13. It depends on, for example, about 70 to 80 cm. In some cases, the number of teeth of the screw shaft side pulley 11p may be increased with respect to the number of teeth of the motor side pulley 13p to form a reduction mechanism.

According to the above dimensional example, the roll press device 60 has a size that fits in a length of 180 cm × a width of 150 cm (× a depth of 90 cm) as a whole.

[Action of roll press device 60]
According to the roll press device 60 of the present embodiment, since the electric lift device 70 that functions as the backup roll adjusting device is compact, the backup roll adjusting device (independent back-up roll adjusting device) is provided at three locations, one side region, the central region, and the other side region. A configuration (layout) for providing the electric lift device 70) has been realized.

Then, by controlling each electric lift device 70 independently, one side region (left region in FIG. 10), a central region (center region in FIG. 10), and the like when viewed in the axial direction of the upper roll 24 and the lower roll 23, etc. Fine compensation can be applied to the displacement generating force of the upper roll 24 and the lower roll 23, which may differ from the side region (the right region in FIG. 10).

Specifically, in the roll press device 60 of the present embodiment, three sets of non-contact rangefinders 67a, 67b, 68a, 68b, 69a, 69b are used to determine the dimensions of the work W in one side region after consolidation. The dimensions of the work W in the central region after consolidation and the dimensions of the work W in the other side region after consolidation are actually measured. Then, based on these measurement results, the electric lift device 70 as the one-side backup roll adjusting device, the electric lift device 70 as the central backup roll adjusting device, and the electric lift device 70 as the central backup roll adjusting device, so that these dimensions are within the allowable error range. Each of the electric lift devices 70 as the other side backup roll adjusting device is controlled independently of each other by the control device 35.

Further, in the roll press device 60 of the present embodiment, in each backup roll adjusting device (electric lift device 70), the rotational force of the output shaft 13s of the electric motor 13 is used as the rotational force of the screw shaft 11a of the ball screw 11. When the first moving body 15 fixed to the nut 11d of the ball screw 11 moves linearly in the axial direction, the second moving body 18 moves linearly in the direction perpendicular to the axial direction, so that the second moving body 18 moves linearly. It is possible to control the movement of the ball with high accuracy by the electric motor 13. That is, each backup roll adjusting device (electric lift device 70) can be controlled with high accuracy.

[Modification example of roll press device 60]

At least at the time of this application, the lower roll central backup rolls 62a and 62b and the upper roll central backup rolls 65a and 65b, the lower roll central backup roll support housing 62h and the upper roll central backup roll support housing 65h, and A mode in which the central backup roll adjusting device (central electric lift device 70) is not adopted is also covered by the protection of the present application.

On the contrary, when the upper roll 24 and the lower roll 23 are long in the axial direction, the lower roll center backup rolls 62a and 62b and the upper roll center backup rolls 65a and 65b, the lower roll center backup roll support housing 62h and the upper roll center Two or more sets of the backup roll support housing 65h and the central backup roll adjusting device (one electric lift device 70) may be adopted, and such an embodiment is also subject to the protection of the present application.

[First modification of electric lift device]
In each of the above embodiments, the rotational force of the output shaft 13s of the electric motor 13 is transmitted to the screw shaft 11a via the motor side pulley 13p, the screw shaft side pulley 11p, and the belt 14.

However, when the size of the electric lift device may be slightly larger, such as when the roll width is large, it is possible to adopt a mode in which the output shaft 13s of the electric motor 13 and the screw shaft 11a are arranged in a straight line. .. An example of such a modification is shown in FIG. In this example, the output shaft 13s of the electric motor 13 and the screw shaft 11a are coupled via a coupling 13c.

In the first modification, the size of the electric lift device is larger than that of the above-mentioned electric lift devices 10 and 70, but the maintainability is improved.

At least at the time of filing the application of the present application, even when the motor side pulley 13p, the screw shaft side pulley 11p, and the belt 14 are used, the output shaft 13s and the screw shaft 11a of the electric motor 13 are arranged in the vertical direction. It is not excluded that the output shaft 13s of the electric motor 13 and the screw shaft 11a are arranged in the horizontal direction (horizontal direction).

Further, the outer bearing 11c that supports the screw shaft 11a of the ball screw 11 may be built in the outer frame wall 12d instead of being built in the central frame wall 12c. In this case, the central frame wall 12c can be omitted, and the electric lift device can be further made compact.

[Structure of the second modification of the electric lift device]
14 is a schematic front view of a roll press device provided with a second modification of the electric lift device, FIG. 15 is a side view of the roll press device of FIG. 14, and FIG. 16 is a roll press of FIG. It is a cross-sectional view of XVI-XVI of the apparatus.

As shown in FIG. 14, the electric lift device 110 of the second modification has a ball screw 111. A plurality of ball screws 111 are provided with respect to a screw shaft 111a having an axis x, a pair of bearings 111b and 111c provided at both ends of the screw shaft 111a and rotatably supporting the screw shaft 111a around the axis x, and a screw shaft 111a. It has a nut 111d which is screwed through a rolling element (not shown) and linearly moves in the axis x direction by the rotation of the screw shaft 111a.

The axis x of the screw shaft 111a is also parallel to the axes of the lower roll 23 (one side roll) and the upper roll 24 (other side roll) like the axis x of the screw shaft 11a of the electric lift device 10, and is on the roll side. The (inner) bearing 111c (two juxtaposed) is built (supported) in the inner frame wall 112c, and the opposite (outer) bearing 111b is built (supported) in the outer frame wall 112b. There is. The inner frame wall 112c and the outer frame wall 112b are erected on the upper surface of the plate-shaped frame bottom plate 112a.

With reference to FIGS. 14 and 15 (and also with reference to FIG. 2), the lower surface of the frame bottom plate 112a is supported by the lower portion 26a of the roll frame 26. Further, an electric motor mounting plate 112f having an L-shaped cross section is fixed to the upper surface of the frame bottom plate 112a corresponding to the inner side of the inner frame wall 112c.

The frame bottom plate 112a, the outer frame wall 112b, the inner frame wall 112c, the central frame wall 112d described later, and the electric motor mounting plate 112f constitute the frame 112. These elements of the frame 112 may be formed integrally or may be formed separately and then fixed to each other.

As shown in FIG. 14, an electric motor 113 (preferably a servomotor) having a rotating output shaft 113s is fixed to the electric motor mounting plate 112f. The output shaft 113s of the electric motor 113 is arranged in a straight line with respect to the axis x of the screw shaft 111a of the ball screw 111. In this example, the output shaft 113s of the electric motor 113 and the screw shaft 111a are coupled via the coupling 113c.

A first moving body 115 that moves integrally with the nut 111d is fixed to the nut 111d of the ball screw 111. The first moving body 115 has a first sliding surface 115t that is inclined at a predetermined angle with respect to a plane (horizontal plane in this example) including the axis x direction of the screw shaft 111a.

Further, as is clear from FIG. 14, the screw shaft 111a penetrates the first moving body 115 in the axial direction. The pair of bearings 111b and 111c are provided on both sides of the first moving body 115.

On the other hand, a first sliding guide 116 extending parallel to the axis x direction is provided on the upper surface of the frame bottom plate 112a, and the first moving body 115 slides against the first sliding guide 116. A first sliding portion 115s that can move is provided. The sliding surface of the first sliding guide 116 and the first sliding portion 115s extends parallel to the axis x direction of the screw shaft 111a in a plan view.

In this example, as shown in FIG. 15, the first sliding portion 115s extends to a position offset parallel to the axis x direction of the screw shaft 111a in a plan view. Further, as shown in FIG. 15, the first sliding surface 115t also extends to a position offset parallel to the axis x direction of the screw shaft 111a in a plan view, and the first sliding surface 115t also extends in a plan view. And the first sliding portion 115s are arranged in a positional relationship so as to substantially overlap with each other.

Further, the electric lift device 110 has a second moving body 118 capable of linearly moving in a direction (vertical direction in this example) perpendicular to the axis x direction with respect to the frame 112. The second moving body 118 has a second sliding surface 118t that can slide and move with respect to the first sliding surface 115t. As a result, when the nut 111d and the first moving body 115 move linearly in the axis x direction, the second moving body 118 is vertically moved by the sliding movement between the first sliding surface 115t and the second sliding surface 118t. It is designed to move linearly in various directions.

In this example, as shown in FIG. 15, the sliding surface between the first sliding surface 115t and the second sliding surface 118t slides between the first sliding guide 116 and the first sliding portion 115s. They are arranged so that they generally overlap with each other in a plan view. That is, the second sliding surface 118t extends to a position offset parallel to the axis x direction of the screw shaft 111a in a plan view. Further, in this example, as shown in FIG. 16, the entire second moving body 118 extends to a position offset parallel to the axis x direction of the screw shaft 111a in a plan view.

As a specific configuration example, the pair of the first sliding surface 115t and the second sliding surface 118t can be provided by a general linear guide. That is, with reference to FIG. 15, the first sliding surface 115t is provided as a concave surface of a member having a concave cross section called a "block" of the linear guide, and the second sliding surface 118t is referred to as a "rail" of the linear guide. It may be provided as the lower surface of a member having a rectangular cross section called. For example, by disassembling a commercially available linear guide, the "block" is fixed to the upper surface of the main body member of the first sliding body 115, and the "rail" is fixed to the lower surface of the main body member of the second sliding body 118. , Can be placed.

As shown in FIGS. 14 and 16, the second moving body 118 is provided with a second sliding portion 118s extending in the vertical direction (direction perpendicular to the axis x direction, vertical direction in this example). The second sliding portion 118s can be slidably moved with respect to the second sliding guide 119 extending in the same direction. The second sliding guide 119 is fixed to the central frame wall 112d fixed to the upper surface of the frame bottom plate 112a. Further, in this example, the load cell 21 is provided on the upper surface of the second moving body 118.

The roll press device shown in FIGS. 14 to 16 includes a pair of the above-mentioned electric lift devices 110. As shown in FIG. 16, in the pair of electric lift devices 110, the frame bottom plate 112a and the central frame wall 112d are arranged as common members, and the second sliding guide 119 is provided on both the left and right sides of the central frame wall 112d. It is fixed to.

Also in the roll press devices shown in FIGS. 14 to 16, similarly to the roll press devices 20 shown in FIGS. 1 and 2, a pair of second moving bodies 118 of the pair of electric lift devices 110 are used. Each of the lower roll supports 22 (one side roll support portion) is supported. Each of the pair of lower roll supports 22 is mounted on the corresponding second moving body 118 via the load cell 21. The pair of lower roll supports 22 have bearings and rotatably support the lower roll 23.

The upper roll 24 is arranged so as to face the lower roll 23. The work W is press-formed (consolidated) by utilizing the gap formed between the lower roll 23 and the upper roll 24.

The upper roll 24 is rotatably supported by a pair of upper roll supports 25 (other side roll support portions). Each of the pair of upper roll supports 25 is fixed to each of the pair of roll frames 26 provided on the base 140 from the outside via, for example, bolts and screws (not shown).

As an example of the dimensions of each element, when the lift force (pressurizing force) of the electric lift device 110 is 300 kN specification (600 kN for a pair of left and right) and the roll diameter is φ450 mm, the size of the frame bottom plate 112a is 110 cm in a plan view. (Length visible in FIG. 14) x 50 cm (length visible in FIG. 15), and the thickness is about 5 cm.

Further, in the electric lift device 110 of the second modification as in the electric lift device 10, the predetermined angle of the first sliding surface 115t is selected from the range of 5.7 ° to 11.3 °. .. 5.7 ° is the value obtained by solving tan θ = 1/10, and 11.3 ° is the value obtained by solving tan θ = 1/5. As a result, a boost ratio of 5 to 10 times can be realized.

It has been confirmed by an actual verification experiment by the present inventor that the electric lift device 110 of the second modification operates effectively in these angle ranges.

The moving stroke of the second moving body 118 is sufficient to be about 1 mm in an application described later (an application in which a material in which a plurality of electrode layers are fired on a metal foil is used as a work W).

The moving speed of the second moving body 118 is, for example, 10 mm / sec. This speed corresponds to the moving speed of the first moving body 115 (that is, the nut 111d) of 50 mm / sec when the boost ratio is 5 times, and 100 mm / sec when the boost ratio is 10 times. 1 Corresponds to the moving speed of the moving body 115 (that is, the nut 111d). Such a moving speed of the nut 111d can be realized by a commercially available general electric motor 113 and a ball screw 111. In particular, when the electric motor 113 is a servomotor, it is possible to realize more accurate and more responsive control.

[Action of electric lift device 110]
Next, the operation of the electric lift device 110 of the second modification will be described.

When the electric motor 113 is driven desiredly (for example, it can be controlled by the control device 35 described above), the output shaft 113s of the electric motor 113 rotates. Next, the rotational force of the output shaft 113s is transmitted as the rotational force of the screw shaft 111a via the coupling 113c. Then, the rotation of the screw shaft 111a is converted into a linear movement of the nut 111d in the axis x direction by the rotary motion / linear motion conversion function of the ball screw 111.

As a result, the first moving body 115 fixed to the nut 111d moves linearly in the axis x direction. At this time, the movement of the first moving body 115 in the axial direction is carried out more smoothly by the interaction between the first sliding guide 116 and the first sliding portion 115s (the action of promoting smooth sliding movement).

Then, when the nut 111d and the first moving body 115 move linearly in the axis x direction, the second moving body 118 moves in the axis x direction due to the sliding movement between the first sliding surface 115t and the second sliding surface 118t. It moves linearly in the vertical direction. At this time, the movement of the second moving body 118 is carried out more smoothly due to the interaction between the second sliding guide 119 and the second sliding portion 118s (the action of promoting smooth sliding movement).

Here, as shown in FIG. 16, since the pair of second moving bodies 118 are arranged in a well-balanced manner with respect to the pair of screw shafts 111a, the pair of linear movements (horizontal movements) of the pair of first moving bodies 115 are paired in a well-balanced manner. The load (reaction force) received by the second moving body 118 can be converted into the linear movement (elevating movement) of the second moving body 118, and the base 140 is well-balanced via the first moving body 115 and the like. Can be supported by.

Further, by driving the electric motor 113 desiredly, the movement of the second moving body 118 is controlled with high accuracy. In particular, when the electric motor 113 is a servomotor, it is possible to realize more accurate and more responsive control.

[Effect of electric lift device 110]
As described above, the electric lift device 110 of the second modification also uses the rotational force of the output shaft 113s of the electric motor 113 as the rotational force of the screw shaft 111a of the ball screw 111 and is fixed to the nut 111d of the ball screw 111. When the first moving body 115 moves linearly in the axis x direction, the second moving body 118 moves linearly in a direction perpendicular to the axis x direction, so that the movement of the second moving body 118 is heightened by the electric motor 113. It is possible to control with precision.

Further, also in the electric lift device 110 of the second modification, the screw shaft 111a penetrates the first moving body 115 in the axial direction, and the pair of bearings 111b and 111c are provided on both sides of the first moving body 115. , The whole device is compact.

Further, according to the electric lift device 110 of the second modification, since the output shaft 113s and the screw shaft 111a of the electric motor 113 are simply connected via the coupling 113c, the maintainability is excellent.

Further, since the hydraulic device is not adopted, that is, there is no concern that the surroundings are contaminated by the oil content, the electric lift device 110 of the second modification is also suitable for installation in the glove box.

Further, also in the electric lift device 110 of the second modification, the frame 112 is provided with the first sliding guide 116 extending parallel to the axis x direction, and the first moving body 115 is provided with respect to the first sliding guide 116. By providing the first sliding portion 115s that can slide and move with each other, the movement of the first moving body 115 in the axial direction is further increased by the interaction between the two (the action of promoting smooth sliding movement). It will be carried out smoothly.

Further, also in the electric lift device 110 of the second modification, the frame 112 is provided with the second sliding guide 119 extending perpendicularly to the axis x direction, and the second moving body 118 is provided with respect to the second sliding guide 119. By providing the second sliding portion 118s that can slide and move with each other, the direction perpendicular to the axial direction of the second moving body 118 due to the interaction between the two (the action of promoting smooth sliding movement). Movement is carried out more smoothly.

Then, according to the electric lift device 110 of the second modification, the first sliding portion 115s extends to a position offset parallel to the axis x direction of the screw shaft 111a in a plan view, and the first sliding portion 115s. The surface 115t also extends to a position offset parallel to the axis x direction of the screw shaft 111a in a plan view, and the position where the first sliding surface 115t and the first sliding portion 115s substantially overlap in a plan view. Arranged in a relationship, the entire second moving body 118 extends to a position offset parallel to the axis x direction of the screw shaft 111a in a plan view. As a result, the first sliding surface 115t, the first sliding portion 115s, and the entire second moving body 118 can be arranged at offset positions with respect to the electric motor 113, thus realizing a more compact device layout. can do.

Further, in the roll press devices shown in FIGS. 14 to 16, since the pair of second sliding guides 119 of the pair of electric lift devices 110 are supported by the common frame wall 112d, a more compact device layout can be obtained. It has been realized.

[Third modification example of electric lift device]
FIG. 17 is a schematic side view of a third modification of the electric lift device.

In the third modification, as shown in FIG. 17, two first sliding surfaces 215t are provided instead of the first sliding surface 115t which was one in the second modification. Each of the two first sliding surfaces 215t extends in the axis x direction of the screw shaft 111a, similarly to the first sliding surface 115t.

Corresponding to this, in the third modified example, as shown in FIG. 17, instead of the second sliding surface 118t which was one in the second modified example, two second sliding surfaces 218t Is provided. Each of the two second sliding surfaces 218t also extends in the axis x direction of the screw shaft 111a, similarly to the second sliding surface 118t.

Further, in the third modification, as shown in FIG. 17, two first sliding portions 215s are provided instead of the first sliding portion 115s which was one in the second modification. .. Each of the two first sliding portions 215s also extends in the axis x direction of the screw shaft 111a, similarly to the first sliding portion 115s.

Corresponding to this, in the third modification, as shown in FIG. 17, instead of the first sliding guide 116 which was one in the second modification, the two first sliding guides 216 Is provided. Each of the two first sliding guides 216 also extends in the axis x direction of the screw shaft 111a, similarly to the first sliding guide 216.

10 Electric lift device 11 Ball screw 11a Screw shaft 11b Bearing (inside)
11c bearing (outside)
11d Nut 11p Screw shaft side pulley 12 Frame 12a Frame bottom plate 12b Inner frame wall 12c Central frame wall 12d Outer frame wall 12e Square pillar 12f Electric motor mounting plate 12g Frame top plate 12h Opening 13 Electric motor 13s Output shaft 13p Motor side pulley 13c Coupling 14 Belt 15 1st moving body 15t 1st sliding surface 15s 1st sliding part 16 1st sliding guide 18 2nd moving body 18t 2nd sliding surface 18s 2nd sliding part 19 2nd sliding guide 20 roll Press device (first embodiment)
21 Load cell 22 Lower roll support (lower roll support)
22s 3rd sliding part 23 Lower roll 24 Upper roll 25 Upper roll support (upper roll support)
25s 4th sliding part 26 Roll frame 26a Lower part of roll frame 26c Fall prevention block 27 3rd sliding guide 28 Spring 30 Displacement amount sensor 31 Displacement amount sensor frame 35 Control device 40 Base 50 Roll press device (second embodiment)
51 Feed roll 52 Position sensor 53 Encoder 60 Roll press device (third embodiment)
61a Lower roll One side backup roll (front side)
61b Lower roll One side backup roll (rear side)
61h Lower roll one side backup roll support housing 61s 4th sliding part 62a Lower roll center backup roll (front side)
62b Lower roll Central backup roll (rear side)
62h Lower roll Central backup roll Support housing 62s 4th sliding part 63a Lower roll Other side backup roll (front side)
63b Lower roll Backup roll on the other side (rear side)
63h Lower roll Other side backup roll Support housing 63s 4th sliding part 64a Upper roll One side backup roll (front side)
64b Upper roll One side backup roll (rear side)
64h Upper roll One side backup roll Support housing 65a Upper roll Central backup roll (front side)
65b Upper roll Central backup roll (rear side)
65h Upper roll Central backup roll Support housing 66a Upper roll Other side backup roll (front side)
66b Upper roll Other side backup roll (rear side)
66h Upper roll Other side backup roll Support housing 67a Non-contact rangefinder to the upper surface of the work in one side area 67b Non-contact rangefinder to the lower surface of the work in one side area 68a Non-contact to the upper surface of the work in the central area Type rangefinder 68b Non-contact rangefinder to the lower surface of the work in the central area 69a Non-contact rangefinder to the upper surface of the work in the other side area 69b Non-contact rangefinder to the lower surface of the work in the other side area 70 Electric Lift device (generally the same as the electric lift device 10)
81 Copper foil 82 Negative electrode layer 83 Solid electrolyte layer 84 Positive electrode layer 110 Electric lift device (second modification)
111 Ball screw 111a Screw shaft 111b Bearing 111c Bearing 111d Nut 112 Frame 112a Frame bottom plate 112b Outer frame wall 112c Inner frame wall 112d Central frame wall 112f Electric motor mounting plate 113 Electric motor 113s Output shaft 113c Coupling 115 First moving body 115s First Sliding part 115t 1st sliding surface 116 1st sliding guide 118 2nd moving body 118s 2nd sliding part 118t 2nd sliding surface 119 2nd sliding guide 140 Base 150 Roll press device (second embodiment) Modification example)
151 Feed roll 152 Position sensor 153 Encoder 215s 1st sliding part 215t 1st sliding surface 216 1st sliding guide 218s 2nd sliding part 218t 2nd sliding surface x ball screw screw shaft axis W work F work Tip R Work rear end C Basic predetermined distance

Claims (13)

The lower roll and the upper roll, which are arranged to consolidate the workpieces,
A lower roll support portion that rotatably supports the lower roll, and a lower roll support portion.
An upper roll support portion that rotatably supports the upper roll and
A moving device that controls the gap between the lower roll and the upper roll by relatively moving the lower roll support portion and the upper roll support portion.
A pair of lower rolls, one-sided backup rolls, which are arranged on the lower surface side of the one-sided region when viewed in the axial direction of the lower rolls and roll with each other with the lower rolls.
A pair of lower roll central backup rolls that are arranged on the lower surface side of the central region when viewed in the axial direction of the lower roll and roll with each other with the lower roll.
A pair of lower rolls and other side backup rolls that are arranged on the lower surface side of the other side region when viewed in the axial direction of the lower roll and roll with each other with the lower roll.
A pair of upper rolls, one side backup rolls, which are arranged on the upper surface side of the one side region when viewed in the axial direction of the upper rolls and roll with each other with the upper rolls.
A pair of upper roll central backup rolls arranged on the upper surface side of the central region when viewed in the axial direction of the upper roll and rolling with each other with the upper roll.
A pair of upper rolls and other side backup rolls that are arranged on the upper surface side of the other side region when viewed in the axial direction of the upper roll and roll with each other with the upper roll.
A lower roll one-side backup roll support portion that rotatably supports the pair of lower roll one-side backup rolls,
A lower roll central backup roll support portion that rotatably supports the pair of lower roll central backup rolls,
A lower roll other side backup roll support portion that rotatably supports the pair of lower roll other side backup rolls,
An upper roll one-side backup roll support portion that rotatably supports the pair of upper roll one-side backup rolls,
An upper roll central backup roll support portion that rotatably supports the pair of upper roll central backup rolls,
An upper roll other side backup roll support portion that rotatably supports the pair of upper rolls and other side backup rolls,
One side that controls the gap between the lower roll one-side backup roll and the upper roll one-side backup roll by relatively moving the lower roll one-side backup roll support portion and the upper roll one-side backup roll support portion. Backup roll adjuster and
A central backup roll adjusting device that controls the gap between the lower roll central backup roll and the upper roll central backup roll by relatively moving the lower roll central backup roll support portion and the upper roll central backup roll support portion. ,
The other side that controls the gap between the lower roll other side backup roll and the upper roll other side backup roll by relatively moving the lower roll other side backup roll support portion and the upper roll other side backup roll support portion. Backup roll adjuster and
With
Each of the one-side backup roll adjusting device, the central backup roll adjusting device, and the other-side backup roll adjusting device
A screw shaft having an axis, a pair of bearings that rotatably support the screw shaft around the axis, and a screw shaft screwed to the screw shaft via a plurality of rolling elements, and the rotation of the screw shaft causes the screw shaft to rotate. A ball screw having a nut that moves linearly in the axial direction,
The frame that supports the bearing and
An electric motor supported by the frame and having a rotating output shaft,
A rotational force transmission mechanism that transmits the rotational force of the output shaft as the rotational force of the screw shaft,
A first moving body fixed to the nut and provided with a first sliding surface inclined at a predetermined angle with respect to a plane including the axial direction.
The nut and the nut are arranged so as to be linearly movable in a direction perpendicular to the axial direction with respect to the frame, and have a second sliding surface capable of sliding and moving with respect to the first sliding surface. When the first moving body moves linearly in the axial direction, the second moving body linearly moves in the vertical direction due to the sliding movement between the first sliding surface and the second sliding surface.
Have and
The screw shaft penetrates the first moving body in the axial direction.
The pair of bearings are provided on both sides of the first moving body.
Either the lower roll one-side backup roll support portion or the upper roll one-side backup roll support portion, the lower roll central backup roll support portion, or the upper roll central backup roll support portion on the second moving body. A roll press device characterized in that either one or one of the lower roll other side backup roll support portion and the upper roll other side backup roll support portion is supported. The pair of the first sliding surface and the second sliding surface that slide and move with each other sandwiches the screw shaft in a direction perpendicular to both the axial direction and the linear movement direction of the second moving body. The roll press device according to claim 1, wherein two pairs are provided at a predetermined distance from the screw shaft. The output shaft of the electric motor and the axis of the screw shaft are parallel to each other.
The rotational force transmission mechanism is a belt spanned between the output shaft and the screw shaft so as to orbit on an orbit extending in a plane perpendicular to the axis of the output shaft and the screw shaft. The roll press device according to claim 1 or 2, wherein the roll press device has. 3. The third aspect of the present invention is that the output shaft of the electric motor and the axis of the screw shaft are in a positional relationship that partially overlaps each other when viewed in the linear movement direction of the second moving body. The roll press device described in. The screw shaft has a protruding portion that penetrates one of the pair of bearings and projects outward.
The roll press device according to claim 3 or 4, wherein the belt is hung on the protruding portion of the screw shaft. The frame is provided with a first sliding guide extending parallel to the axial direction.
The first moving body according to any one of claims 1 to 5, wherein the first moving body is provided with a first sliding portion capable of sliding and moving with respect to the first sliding guide. Roll press equipment. The pair of the first sliding guide and the first sliding portion that slide and move with each other sandwiches the screw shaft in a direction perpendicular to both the axial direction and the linear movement direction of the second moving body. The roll press device according to claim 6, wherein two pairs are provided at a predetermined distance from the screw shaft. The frame is provided with a second sliding guide extending perpendicularly to the axial direction.
The second moving body according to any one of claims 1 to 7, wherein the second moving body is provided with a second sliding portion capable of sliding and moving with respect to the second sliding guide. Roll press equipment. The roll press device according to any one of claims 1 to 8, wherein the predetermined angle is in the range of 5.7 ° to 11.3 °. A measuring device that measures each of the dimensions in the one-sided region after consolidation of the work, the dimensions in the central region after consolidation of the work, and the dimensions in the other-side region after consolidation of the work.
A control device that controls each of the one-side backup roll adjusting device, the central backup roll adjusting device, and the other-side backup roll adjusting device based on the measurement results of the measuring device.
The roll press apparatus according to any one of claims 1 to 9, further comprising. The lower roll and the upper roll, which are arranged to consolidate the workpieces,
A lower roll support portion that rotatably supports the lower roll, and a lower roll support portion.
An upper roll support portion that rotatably supports the upper roll and
A moving device that controls the gap between the lower roll and the upper roll by relatively moving the lower roll support portion and the upper roll support portion.
A pair of lower rolls, one-sided backup rolls, which are arranged on the lower surface side of the one-sided region when viewed in the axial direction of the lower rolls and roll with each other with the lower rolls.
A pair of lower rolls and other side backup rolls that are arranged on the lower surface side of the other side region when viewed in the axial direction of the lower roll and roll with each other with the lower roll.
A pair of upper rolls, one side backup rolls, which are arranged on the upper surface side of the one side region when viewed in the axial direction of the upper rolls and roll with each other with the upper rolls.
A pair of upper rolls and other side backup rolls that are arranged on the upper surface side of the other side region when viewed in the axial direction of the upper roll and roll with each other with the upper roll.
A lower roll one-side backup roll support portion that rotatably supports the pair of lower roll one-side backup rolls,
A lower roll other side backup roll support portion that rotatably supports the pair of lower roll other side backup rolls,
An upper roll one-side backup roll support portion that rotatably supports the pair of upper roll one-side backup rolls,
An upper roll other side backup roll support portion that rotatably supports the pair of upper rolls and other side backup rolls,
One side that controls the gap between the lower roll one-side backup roll and the upper roll one-side backup roll by relatively moving the lower roll one-side backup roll support portion and the upper roll one-side backup roll support portion. Backup roll adjuster and
The other side that controls the gap between the lower roll other side backup roll and the upper roll other side backup roll by relatively moving the lower roll other side backup roll support portion and the upper roll other side backup roll support portion. Backup roll adjuster and
With
Each of the one-side backup roll adjusting device and the other-side backup roll adjusting device
A screw shaft having an axis, a pair of bearings that rotatably support the screw shaft around the axis, and a screw shaft screwed to the screw shaft via a plurality of rolling elements, and the rotation of the screw shaft causes the screw shaft to rotate. A ball screw having a nut that moves linearly in the axial direction,
The frame that supports the bearing and
An electric motor supported by the frame and having a rotating output shaft,
A rotational force transmission mechanism that transmits the rotational force of the output shaft as the rotational force of the screw shaft,
A first moving body fixed to the nut and provided with a first sliding surface inclined at a predetermined angle with respect to a plane including the axial direction.
The nut and the nut are arranged so as to be linearly movable in a direction perpendicular to the axial direction with respect to the frame, and have a second sliding surface capable of sliding and moving with respect to the first sliding surface. When the first moving body moves linearly in the axial direction, the second moving body linearly moves in the vertical direction due to the sliding movement between the first sliding surface and the second sliding surface.
Have and
The screw shaft penetrates the first moving body in the axial direction.
The pair of bearings are provided on both sides of the first moving body.
On the second moving body, either one of the lower roll one-side backup roll support portion and the upper roll one-side backup roll support portion, or the lower roll other side backup roll support portion and the upper roll other side backup roll. A roll press device characterized in that one of the support portions is supported. The lower roll and the upper roll, which are arranged to consolidate the workpieces,
A lower roll support portion that rotatably supports the lower roll, and a lower roll support portion.
An upper roll support portion that rotatably supports the upper roll and
A moving device that controls the gap between the lower roll and the upper roll by relatively moving the lower roll support portion and the upper roll support portion.
A pair of lower rolls, one-sided backup rolls, which are arranged on the lower surface side of the one-sided region when viewed in the axial direction of the lower rolls and roll with each other with the lower rolls.
A pair of lower roll central backup rolls that are arranged on the lower surface side of the central region when viewed in the axial direction of the lower roll and roll with each other with the lower roll.
A pair of lower rolls and other side backup rolls that are arranged on the lower surface side of the other side region when viewed in the axial direction of the lower roll and roll with each other with the lower roll.
A pair of upper rolls, one side backup rolls, which are arranged on the upper surface side of the one side region when viewed in the axial direction of the upper rolls and roll with each other with the upper rolls.
A pair of upper roll central backup rolls arranged on the upper surface side of the central region when viewed in the axial direction of the upper roll and rolling with each other with the upper roll.
A pair of upper rolls and other side backup rolls that are arranged on the upper surface side of the other side region when viewed in the axial direction of the upper roll and roll with each other with the upper roll.
A lower roll one-side backup roll support portion that rotatably supports the pair of lower roll one-side backup rolls,
A lower roll central backup roll support portion that rotatably supports the pair of lower roll central backup rolls,
A lower roll other side backup roll support portion that rotatably supports the pair of lower roll other side backup rolls,
An upper roll one-side backup roll support portion that rotatably supports the pair of upper roll one-side backup rolls,
An upper roll central backup roll support portion that rotatably supports the pair of upper roll central backup rolls,
An upper roll other side backup roll support portion that rotatably supports the pair of upper rolls and other side backup rolls,
One side that controls the gap between the lower roll one-side backup roll and the upper roll one-side backup roll by relatively moving the lower roll one-side backup roll support portion and the upper roll one-side backup roll support portion. Backup roll adjuster and
A central backup roll adjusting device that controls the gap between the lower roll central backup roll and the upper roll central backup roll by relatively moving the lower roll central backup roll support portion and the upper roll central backup roll support portion. ,
The other side that controls the gap between the lower roll other side backup roll and the upper roll other side backup roll by relatively moving the lower roll other side backup roll support portion and the upper roll other side backup roll support portion. Backup roll adjuster and
A roll press device characterized by being equipped with. The lower roll and the upper roll, which are arranged to consolidate the workpieces,
A lower roll support portion that rotatably supports the lower roll, and a lower roll support portion.
An upper roll support portion that rotatably supports the upper roll and
A moving device that controls the gap between the lower roll and the upper roll by relatively moving the lower roll support portion and the upper roll support portion.
A pair of lower rolls, one-sided backup rolls, which are arranged on the lower surface side of the one-sided region when viewed in the axial direction of the lower rolls and roll with each other with the lower rolls.
A pair of lower rolls and other side backup rolls that are arranged on the lower surface side of the other side region when viewed in the axial direction of the lower roll and roll with each other with the lower roll.
A pair of upper roll unilateral backup rolls that are arranged on the upper surface side of the one side region when viewed in the axial direction of the upper roll and roll with each other with the upper roll.
A pair of upper rolls and other side backup rolls that are arranged on the upper surface side of the other side region when viewed in the axial direction of the upper roll and roll with each other with the upper roll.
A lower roll one-side backup roll support portion that rotatably supports the pair of lower roll one-side backup rolls,
A lower roll other side backup roll support portion that rotatably supports the pair of lower roll other side backup rolls,
An upper roll one-side backup roll support portion that rotatably supports the pair of upper roll one-side backup rolls,
An upper roll other side backup roll support portion that rotatably supports the pair of upper rolls and other side backup rolls,
One side that controls the gap between the lower roll one-side backup roll and the upper roll one-side backup roll by relatively moving the lower roll one-side backup roll support portion and the upper roll one-side backup roll support portion. Backup roll adjuster and
The other side that controls the gap between the lower roll other side backup roll and the upper roll other side backup roll by relatively moving the lower roll other side backup roll support portion and the upper roll other side backup roll support portion. Backup roll adjuster and
A roll press device characterized by being equipped with.

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