JPH0531842U - Roll attachment / detachment device for roll grinders that is easy to automate - Google Patents

Abstract

(57) [Summary] [Purpose] A roll attachment / detachment device is configured so that the roll attachment / detachment can be easily automated. [Structure] An upper frame 9, a shift frame 10, and an elevating frame 11 that are movable in the front-rear, left-right, and up-down directions, respectively, are provided on a lower frame 7 that serves as a base that does not move relative to the roll attachment / detachment position on the roll grinder. A roll gripping and releasing device 12 equipped with a roll gripping tool 12a having a configuration in which, when properly combined, the roll is gripped at the lower end of the elevating frame 11 regardless of the size of the roll diameter, the position of the axis is always constant , The frames 9, 10, 11 and the roll gripping tool 12a are moved by the moving means 9e, 10e, 11f,
By 12e, each movement can be stopped at a predetermined position. [Effect] There is no need for humans to be directly involved in the roll attachment / detachment work, and there is no danger, and a series of roll grinding processes can be automated in combination with a roll transport robot or an NC roll grinder.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a roll attachment / detachment device for a roll grinder that is easy to automate for attaching / detaching a roll to be ground to a roll grinder that grinds rolls used in a rolling mill.

[0002]

[Prior Art]

 Since various rolls used for rolling are reused repeatedly, after use, they are used for the purpose of removing defects on the roll surface, metal oxides adhered to the roll surface, metal fatigue layer on the roll surface, etc. generated during rolling. It is necessary to grind the roll surface each time.

A roll grinder is generally used for grinding the roll surface. The outline of roll grinding by this roll grinder will be described with reference to FIG. The roll grinder 1 is provided with a drive-side fixed frame 3 fixed on the base 2 for maintaining grinding accuracy, and a sliding frame 4, and the rotation centers 3a and 4a face each other. Attached and configured with high accuracy. In order to mount the roll 6, which is the object to be ground, on such a roll grinder 1, first, the sliding frame 4 is first separated from the fixed frame 3 by a length equal to or more than the length of the roll 6, and then normally provided in advance horizontally. The rotation center 3a and 4a are provided such that the roll 6 is fed so that the center positions of the center holes of both end faces of the roll 6 are located on the line connecting the centers of the rotation centers 3a and 4a, and then the roll 6 is moved to the fixed frame 3 side. The center hole of one end face of the roll 6 is externally fitted to the rotation center 3a, and then the sliding frame 4 is slid toward the fixed frame 3 side so that the rotation center 4a is attached to the other end face of the roll 6. It fits in a center hole. The position where the roll 6 is mounted on the roll grinder 1 at this time is also the position where the roll 6 that has finished grinding is removed, as will be described later. Therefore, in the following description, it will be referred to as the roll attachment / detachment position of the roll grinder 1. ..

However, in such a roll grinder 1, the fixed frame 3 is not an immovable one but a sliding type, and the roll 6 mounted between the fixed frame 3 and the sliding type frame 4 is mounted on the roll shaft. Grinding while moving (feeding) in the direction of the core line, while the position of the grinder 5 is immovable, or grinding while moving (feeding) in the axial direction of the grinder 5 are various combinations of grinding methods. Therefore, the roll attachment / detachment position of the roll grinder 1 is completely the same as the grinding position of the roll 6 actually ground by the grinder 5, at least on the roll axis line. It may not be directly related.

When the roll 6 is mounted on the roll grinder 1 in this manner, the fixed frame 3 is attached to the roll 6 at the roll attaching / detaching position, that is, the grinding position shown in FIG. A tool called a kelet (not shown) connected to a drive source provided is attached to one end of the roll 6 to drive the roll 6 in rotation, and the grinder 5 is moved in the axial direction of the roll 6. While moving (feeding) in parallel, while being rotationally driven, it is pressed against the surface of the roll 6 for grinding. On the contrary, as an example of the case where the roll 6 is ground while moving in the axial direction, and the roll attachment / detachment position is not necessarily the same as the roll grinding position, the fixedly arranged grinder 5 is rotated. In addition to driving, the roll 6 to which the kelet is attached is also moved (sending) in parallel to the axial direction of the roll 6 while being rotationally driven while pressing the rotating grinder 5 against the surface of the roll 6 for grinding. Can be done. In any case, in order to remove the roll 6 mounted at the roll attachment / detachment position and move it to the outside of the roll grinder 1 after such grinding, a procedure reverse to the above-mentioned procedure may be performed. Of.

Conventionally, the work of grinding a roll using a roll grinder as described above is performed according to the type of roll to be ground (presence or absence of roll chock, roll material, shape size, roll weight, etc.), roll Grinding method (Roll grinder type, rotating grindstone method or endless belt method, roll supply / removal mechanism, roll rotation drive mechanism, roll feed drive mechanism, rotation grindstone rotation / pressing on the roll surface・ Feeding drive mechanism, whether or not grinding water or grinding oil is used and its supply mechanism, etc., roll grinding conditions (each rotation speed, each feed amount and feed speed, pressing force, supply method and feed amount, rotary whetstone surface) Dressing, etc.), grinding control method and control mechanism (various sensors and their arrangements, various computers, etc.), etc. Also try to grind as many kinds of rolls as possible with a single roll grinder under a wide range of conditions, and this work itself has to be performed with high accuracy, smoothness and efficiency, which makes automation very difficult. It was a thing. Therefore, although such a roll grinding operation itself was performed manually by using a roll grinder, the roll supply to the roll attachment / detachment position on the roll grinder accompanying this roll grinding operation was performed. Alternatively, it was inevitable that the work of detaching the roll that was placed at this attachment / detachment position and moved to the outside of the roll grinder was also done manually.

That is, such a roll attaching / detaching operation is usually performed only by human power in the case of a light roll, whereas in the case of a heavy roll, the work is carried or carried by using a crane and an appropriate roll lifting device. Human beings mainly operated and worked in some way, such as carrying and operating by using a free balancer, etc., which enables lightweight operation. Moreover, the work of attaching and detaching this roll has a considerable effect on the grinding work that requires highly accurate grinding and finishing of the target roll, so it must be carefully and precisely performed, and it is not very good work. Since the work is close to heavy objects such as rolls in the environment, it puts a heavy burden on the worker, and the workability is poor and dangerous in a bad environment. Therefore, in recent years, not only the above-mentioned roll grinding work that is difficult to automate, but also the work of attaching and detaching the rolls to and from a series of roll grinders has been automated to improve workability and safety. Without any effort, it is promoted with the aim of reducing the burden on workers, saving labor, and improving productivity.

[0008]

[Problems to be solved by the device]

 An object of the present invention is to solve the above-mentioned problems of the prior art and to construct a roll attaching / detaching device for a roll grinder that is easy to automate for attaching / detaching a roll to / from a roll grinder.

[0009]

[Means for Solving the Problems]

 As a result of various studies by the present inventors, although the roll attachment / detachment position on the roll grinder is not necessarily the roll grinding position by the grinder, at least the roll grinding position on the roll shaft core at the roll attachment / detachment position is present. Or, paying attention to the fact that the roll grinding position is provided, a base that is facing the roll attaching / detaching position on such a roll grinder and has a fixed positional relationship with respect to the roll attaching / detaching position is provided. It is movable in at least the front-back and up-down directions (the direction toward the roll grinder is the front and the opposite direction is the rear, and the vertical direction perpendicular to the front-back direction is the up-down direction) on the base. The three types of frames are preferably movable in the left and right directions by adding the right and left directions (the horizontal direction orthogonal to the front-back direction is defined as the left and right directions). In addition to combining them individually, when the roll is held or released at a fixed height position, the height of the roll axis is always constant regardless of the size of the roll diameter. The present invention has been completed by clarifying that the above problems can be achieved by combining roll gripping members regardless of various roll grinding modes by a roll grinder.

A roll attaching / detaching device for a roll grinder according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view showing one embodiment of a roll attaching / detaching device for a roll grinder according to the present invention, FIG. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is an overall perspective view.

The device of the present invention supplies the roll 6 to the roll attachment / detachment position of the roll grinder 1 or removes the roll 6 mounted at the roll attachment / detachment position of the roll grinder 1 to remove the roll 6 from the roll grinder 1. It is a roll attachment / detachment device for a roll grinder that is easy to automate and is equipped with the following parts. And, as described above, the device of the present invention is, when the roll 6 mounted on the roll grinder 1 is ground, the roll attachment / detachment in the case of the grinding mode in which the roll 6 is ground without being moved in the axial direction. The configuration changes depending on whether the position is the roll grinding position or when the roll attachment / detachment position is not necessarily the roll grinding position in the case of the grinding mode in which the roll 6 is ground while moving in the axial direction. .. In the following description, first, the configuration of the device of the present invention including the minimum necessary parts for allowing the use in any case will be described, and then the present invention also including the necessary parts for the former case. The configuration of the device will be described.

Base (base or frame): Corresponding to the roll grinder 1 installed at a predetermined position, the whole base of the roll attaching / detaching device for the roll grinder according to the present invention, which is easy to automate, must be provided. .. The base, which is provided as a base of the entire apparatus, faces a substantially horizontal roll attachment / detachment position on the roll grinder 1 and is fixed in a fixed position relative to the roll attachment / detachment position. Such a base is related to other parts (other frames and members) described later, but if it is configured so that the functions of the other parts concerned are smoothly and sufficiently exhibited. Well, specifically, various configurations are possible. As this base, the structure of the lower frame 7 described later is preferable.

Upper frame 9: The upper frame 9 is mounted on a base that is immovable relative to the roll attachment / detachment position in the horizontal direction perpendicular to the axis of the roll 6 at the roll attachment / detachment position. The moving means 9e is configured to be movable so as to be stopped at a predetermined position. Therefore, the upper frame 9 will be described in more detail below by adding a lower frame 7 and a roll mounting table 8 which will be described later, and the upper frame 9 preferably has a width larger than that of the roll mounting table 8. It is laid over the frame 7 and is configured to be movable by a moving means 9e on the lower frame 7 in a direction vertical and horizontal to the roll shaft core line direction at the roll attachment / detachment position. In the upper frame 9 shown in the figure, the side frames 9a on both sides which are vertically and parallelly arranged at the same intervals as the width of the lower frame 7 are located on the roll grinder 1 side. The slider 9d is fixed to both ends of the frame 9c and integrally formed, and the sliders 9d attached to the lower surfaces of the side frames 9a on both sides are attached to the slide beds 7e attached to the upper surfaces of the horizontal beams 7a on both sides of the lower frame 7. It is held slidably. As shown in FIG. 2, as the moving means 9e, for example, the end of the piston rod of the hydraulic double-acting cylinder is on the rear cross beam 7b of the lower frame 7, and the cylinder outer cylinder is on the upper frame 9. Are fixed so that they can be moved along the slide bed 7e mounted on the horizontal beam 7a of the lower frame 7, that is, in the horizontal direction perpendicular to the axial center line direction of the roll 6 at the roll attaching / detaching position.

Elevating frame 11: The elevating frame 11 is a frame attached to the roll grinder 1 side portion of the upper frame 9 so as to be movable only up and down. The two roll gripping and releasing device mounting portions 11a for the device 12 are provided in parallel with the axial center line direction of the roll 6 at the roll attaching / detaching position and at a distance substantially equal to or less than the length of the roll 6, and both rolls are provided. The grip release device mounting portion 11a is configured to be movable vertically by the moving means 11f so that it can be stopped at a predetermined position. The elevating frame 11 is not only attached to the upper frame 9 so as to be vertically movable as described above, but also has a function different from that of the upper frame 9 as shown in FIGS. 1 to 3 and described later. Similarly, it can be mounted on the shift frame 10 so that only vertical movement is possible. Therefore, the lift frame 11 will be described in more detail when the shift frame 10 is described later.

Roll gripping release device 12: The roll gripping release device 12 is attached to the lower part of each roll gripping release device mounting portion 11a of the elevating frame 11 at the same height, and is in a predetermined position. It is a device for gripping or releasing the and has the following configuration. That is, the roll gripping tool 12a is provided with two roll gripping tools 12a for gripping the roll 6 from both sides. As shown in FIG. 2, the roll gripping tool 12a has a recess 12aa that is opened vertically. 12aa is formed in a shape in which the top and bottom are substantially evenly converged from the opening end to the deepest point 12ab. In the illustrated example, the concave portion 12aa of the roll gripping tool 12a is linearly converged, but it is not always necessary and may be curved. Such a pair of roll grippers 12a are attached with their open ends opposed to each other in a direction perpendicular to the roll shaft core line direction at the roll attachment / detachment position, and are moved by a moving means 12e (for example, a rotation driving means such as a hydraulic motor). The rolls 6 are gripped or released by moving the rolls 6 toward or away from each other.

The overall structure of the roll gripping and releasing device 12 of the illustrated example is as follows. As shown in each of FIGS. 1, 2 and 3, two roll grippers 12a have upper recesses 12aa facing each other and an upper base 12ac opposite to the recesses 12aa. It is slidable by penetrating through two guide bars 12c fixed to the lower surface of the base plate 12b fixed to the lower part of the opening device mounting portion 11a in a direction vertical and horizontal to the roll axis direction of the roll attachment / detachment position. Both sides of the guide rod 12c are rotatably mounted between the two guide rods 12c and are screwed into the threaded portions on both sides of the threaded rod 12d having reverse screws. One end is connected to, for example, a hydraulic motor as a rotary drive source that constitutes the moving means 12e. In such a configuration, the distance between the roll gripping tools 12a of the roll gripping and releasing devices 12 on both sides is designed to be different from the distance between the roll supporting portions 8a of the roll mounting table 8. In this configuration, if the screw rod 12d is rotationally driven in a certain direction by, for example, a hydraulic motor as the moving means 12e, the two roll gripping tools 12a can approach each other and can be rotationally driven in the opposite directions to be separated from each other.

By the way, as long as the above-described base (base or pedestal), the upper frame 9, the elevating frame 11, and the roll gripping and releasing device 12 are provided as a minimum, in any case as described above. However, in the former case where the roll attachment / detachment position of the roll grinder is almost the roll grinding position as described above, it is very desirable to have the necessary and necessary parts. I will explain.

Lower frame 7: The lower frame 7, which is the base of the entire apparatus, has been touched a little in the description of each part of the base (base or pedestal) and the upper frame 9, but it is a substantially horizontal roll of the roll grinder 1. The positional relationship is fixedly fixed to the attachment / detachment position. The structure is sufficient if the functions of other frames and members are sufficiently exerted, and specifically, various structures are possible. In the example shown in the figure, the horizontal beams 7a on both sides which are vertical and horizontal to the roll axis when the roll 6 is placed at the roll attaching / detaching position, the central and rear transverse beams 7b perpendicular to the horizontal beam 7a, A front horizontal beam 7d is provided between the four columns 7c and the column 7c on the side of the roll grinder 1 in parallel with the roll attachment / detachment position and at the same low position as the horizontal beam 7b.

Roll mounting table 8: The roll mounting table 8 is provided on a portion of the lower frame 7 on the side of the roll grinder 1, that is, on the front cross beam 7d in the illustrated example, and is substantially parallel to the roll attaching / detaching position. Roll support portions 8a for supporting both ends of the roll 6 at the above positions are provided at both ends thereof. It is preferable that the roll mounting table 8 is provided at a low position, that is, at least lower than the roll attaching / detaching position. The reason is that it does not interfere with the movement of the roll gripping and releasing device 12, the lifting frame 11 and the shift frame 10 to which the roll gripping and releasing device 12 is attached when the roll 6 is conveyed to the roll attaching / detaching position, as will be described later. This is because. As shown in the drawing, the shape of the roll supporting portion 8a is inclined substantially uniformly from both sides toward the central portion, and when the roll 6 is stabilized at the lowest position, the horizontal projection plane is maintained regardless of the roll diameter. It is preferable that the distance between the roll axis and the roll axis at the roll attachment / detachment position is always constant. As a temporary roll storage space, if a required number of spare roll mounting bases 8'are provided on the center cross beam 7b as shown in FIG. Since it is equipped with a place for the roll 6 to be mounted on the roll grinder 1 after being conveyed from the roll place by an appropriate conveyer device, the operation rate can be increased without restraining this conveyer device as much as possible. Therefore, it is preferable.

Shift frame 10: The shift frame 10 is a frame required when the roll attachment / detachment position is the roll grinding position in the grinding mode for grinding the roll 6 without moving the roll 6 in the axial direction as described above, The upper frame 9 is fixed to a portion of the upper frame 9 on the roll grinder 1 side, and is predetermined by a moving means 10e (for example, a hydraulic cylinder) so as to be movable in a direction parallel to the roll axis at the roll attaching / detaching position. It is configured to stop at the position. As shown in FIGS. 2 and 3, the shift frame 10 of the illustrated example includes a horizontal upper horizontal frame 10a, a vertical frame 10b vertically fixed to the lower surface of the edge of the roll grinder 1 side, and the vertical frame 10b. A lower horizontal frame 10c whose both ends are fixed to the frame 10b is formed into a mouth shape in which the lower portions of both vertical frames 10b are projected, and the vertical frame 10b is used as the roll grinder 1 side to form the upper horizontal frame 10a. Place it on the upper horizontal frame 9b of the upper frame 9 and place the sliders 10d attached to the lower surface of the upper horizontal frame 10a and the lower side surface of the vertical frame 10b, respectively, as shown in FIG. Securing the slide beds 9f attached to the upper horizontal frame 9b of the upper frame 9 and the side surfaces of the lower horizontal frame 9c, respectively, so that they cannot be separated. And it has a configuration. As shown in FIGS. 1 and 3, for example, the end portion of the cylinder outer cylinder of the hydraulic cylinder and the tip of the cylinder rod as the moving means 10e actuate the shift frame 10 to move the shift frame 10 to the upper horizontal frame 9b and the upper horizontal frame 9b. It is attached to the upper frame 9 and the shift frame 10, respectively, so that the lower frame 9c can move to a predetermined position along the lower horizontal frame 9c, that is, in a direction parallel to the roll axis of the roll attaching / detaching position. ing.

Elevating frame 11 attached to shift frame 10: The elevating frame 11 is attached not only to the upper frame 9 but also to the shift frame 10 as described above so that only the vertical movement is possible. The frame is attached to the part on the side of the grinder 1, and two roll gripping and releasing device attachment parts 11a are provided on both sides of the lower end thereof in parallel with the roll axis direction of the roll attachment / detachment position and substantially the length of the roll 6. Equipped at equal or less intervals. It is configured to be movable up and down by the moving means 11f so that it can be stopped at a predetermined position. In the elevating frame 11 of the illustrated example, the upper ends of the rods 11b arranged vertically with a distance substantially equal to or less than the length of the roll 6 are integrally connected by a connecting frame 11c, and each rod 11b is vertically connected to the shift frame 10. A vertical guide 11d fixed to the side surface of the frame 10b on the side of the roll grinder 1 is movable only in the vertical direction. In this case, the lower end of the rod 11b serves as the roll gripping release device mounting portion 11a. As the moving means 11f, for example, a hydraulic cylinder is fixed to the side surface of the lower horizontal frame 10c whose both ends are fixed to the vertical frame 10b of the shift frame 10, and the tip of the cylinder rod is connected to the connecting frame 11c. It is connected to the lower surface of the central part.

Each of the moving means 9e, 10e, 11f, 12e (specifically, for example, a hydraulic cylinder or a hydraulic motor as a rotation driving means) used in each of the above-mentioned parts has its own frame or roll holding member in advance. By stopping the operation when the robot moves to the arbitrarily defined position, it is possible to stop at that position. The device of the present invention is configured as described above. Then, as described in the section of the next operation, the roll 6 is driven to move to the roll attachment / detachment position of the roll grinder 1 and supplied, or detached from this attachment / detachment position for attachment / detachment. This roll attachment / detachment is automated in that each movement of the upper frame 9, the shift frame 10, the elevating frame 11, and the roll gripping tool 12a of the roll gripping and releasing device 12 is performed from a certain position described in the section of the next action. The proximity sensor 13 is installed at a necessary position, for example, at a position illustrated in each drawing, and each control mechanism is arranged, though not illustrated and described, so that the pressure is changed from a certain pressed state to another fixed position at an appropriate timing. The moving order of each moving means 9e, 10e, 11f, 12e that is provided and moves each frame or member can be easily realized by incorporating a program.

[0023]

[Action]

 The operation of the device of the present invention will be described by taking the device of the above-mentioned example as an example together with an example of its usage. In order to mount the roll 6 which is the object to be ground on the roll grinder 1 by the device of the present invention, first, the moving means (hydraulic cylinder) 9e is operated to operate the upper frame 9 which is laid over the lower frame 7 as a base. Is retracted to a position sufficiently distant from the roll mounting table 8 (hereinafter, this position is referred to as the upper frame first fixed position), and a roll 6 such as a roll rack, which is arbitrarily determined in advance, is rolled. It is transported from the storage place by an appropriate transfer device and placed on the roll mounting table 8. At this time, when the roll attaching / detaching position of the roll grinder 1 is substantially the roll grinding position, the position of the center hole at the end of the roll 6 facing the fixed frame 3 side of the roll grinder 1 is the rotation of the fixed frame 3. The position should be slightly displaced from the tip of the center 3a toward the sliding frame 4 side. Although the explanation of automating such placement is omitted, it may be performed by the carrier device side.

Next, the shift frame 10 is operated by the moving means (hydraulic cylinder) 10e so that the roll gripping tool 12a of the roll gripping and releasing device 12 can grip the roll 6 as a position in the roll axis direction (this position). Can be used as a fixed position (hereinafter referred to as the first fixed position of the shift frame). Then, the elevating frame 11 is moved to a sufficiently high position (hereinafter referred to as the first elevating frame first fixed position) by operating the moving means (hydraulic cylinder) 11f, and the upper frame 9 is moved to the moving means (hydraulic cylinder). Cylinder) 9e is operated to advance to the side of the roll grinder 1 and the center point of the two roll gripping tools 12a of the roll gripping and releasing device 12 facing each other is the lowest position of the inclination of both roll supporting parts 8a of the roll mounting table 8. The vehicle is stopped at a position just above the connecting line (this position is also a fixed position; hereinafter, referred to as a second fixed position of the upper frame). Since the roll supporting portion 8a of the roll mounting table 8 generally forms a recess having the lowest position as shown in the figure, the roll axis of the mounted roll 6 has a horizontal projection plane regardless of the roll diameter. Above this lowest position, therefore, substantially coincides with the line connecting the center points of the facing roll gripping tools 12a of each roll gripping opening device 12 when the upper frame 9 is in the upper frame second fixed position. This match does not have to be exact.

Next, the two opposing roll gripping tools 12a of each roll gripping and releasing device 12 are sufficiently separated by the operation of the moving means (hydraulic motor) 12e (hereinafter referred to as the roll gripping tool fixed position). ), The elevating frame 11 is moved down by operating the moving means (hydraulic cylinder) 11f, and the innermost points 12ab of the recesses 12aa of the two roll gripping tools 12a of the roll gripping and releasing device 12 are respectively rolled. The roll 6 placed on the mounting table 8 is stopped at a position at the same height as the roll shaft center line (determined by the diameter of the roll; hereinafter referred to as the second position of the elevating frame). The heights of the two do not have to be exactly the same.

Thereafter, the moving means (hydraulic motor) 12 e is operated for each roll gripping and releasing device 12 to bring the roll gripping tools 12 a closer to each other, and the roll gripping tools 12 a are mounted on the roll mounting table 8 between the recesses 12 aa. Hold the rolling roll 6. At this time, since the upper and lower shapes of the concave portions 12aa are formed to converge substantially evenly, the positions of the roll shaft core lines are accurately set to the middle position between the concave portions 12aa of the two roll gripping tools 12a facing each other. Even if they do not match, the roll 6 can be held between the recesses 12aa, and finally the position of the roll axis is in the middle between the two opposing grippers 12a, and the height is the deepest of the recesses 12aa. Exactly coincides with point 12ab. That is, the position of the axis of the roll 6 held by the roll gripping and releasing device 12 is constant on the roll gripping and opening device 12 parallel to the roll axis of the roll attaching / detaching position regardless of the size of the roll diameter. It is located at the position (this is called the roll gripper axis position). The parallelism between the two does not necessarily have to be accurate.

Then, the elevating frame 11 is moved up by operating the moving means (hydraulic cylinder) 11f, and the roll gripper axis center position is at the same height as the position of the roll axis line at the roll attaching / detaching position (this is the lift frame third position). Stop at the fixed position. Then, the moving means (hydraulic cylinder) 9e is operated to move the upper frame 9 forward toward the roll grinder 1 on the lower frame 7, and the axis position of the roll gripping tool corresponds to the position of the roll axis center line at the roll attaching / detaching position. Stop at a position that matches the height and the front-rear position (this matching and overlapping position is called the upper frame third position) (fix the sliding frame 4 of the roll grinder 1 before this forward movement. Of course, it should be sufficiently separated from frame 3).

In this state, the moving means (hydraulic cylinder) 10e is operated to move the shift frame 10 of the device of the present invention to the fixed frame 3 side of the roll grinder 1, and the rotation center 3a thereof is provided with the center of the end surface of the roll 6. The hole is externally fitted (the position of the shift frame 10 at this time is referred to as the shift frame second fixed position). Then, the sliding frame 4 is slid toward the fixed frame 3 side, and the rotation center 4a thereof is fitted into the center hole of the end face of the roll 6. The automation of the operation of the sliding frame 4 can be performed on the roll grinder 1 side.

The operation of the device of the present invention described above is the operation content required when the roll attaching / detaching position of the roll grinder 1 is substantially the roll grinding position. As described above, the fixing of the roll grinder 1 is performed. In some cases, the frame 3 does not move but slides similarly to the sliding frame 4, and the roll 6 mounted between the frames 3 and 4 is ground in the direction of the roll axis while the roll 6 is moved. .. In that case, the shift frame 10 itself and the operation of the shift frame 10 are not necessary in the operation contents of the device of the present invention described above, and the operation of the shift frame 10 is slidably moved in the roll axis direction. It may be performed on the side of the roll grinder 1 having the frames 3 and 4. And, in actuality, the automation of the operations of the fixed frame 3 and the sliding frame 4 which slide can be performed on the roll grinder 1 side.

Since the mounting of the roll 6 on the roll grinder 1 is completed as described above, the roll gripping device 12a of the roll gripping releasing device 12 is separated to the roll gripping tool fixed position to open the roll 6 (but The roll 6 is still attached to the roll grinder 1), and the upper frame 9 is returned to the upper frame first fixed position while the lifting frame 11 is raised to the first upper frame fixed position. It should be noted that the order of operation of each frame or member does not necessarily have to be the procedure described above. For example, after the elevating frame 11 is first moved to the elevating frame first fixed position, the upper frame 9 is moved to the upper frame second fixed position. It may be advanced to a position and then the shift frame 10 may be moved to the first shift frame home position.

In order to remove the roll 6 mounted on the roll grinder 1 and finished grinding, and move it to the outside of the roll grinder 1, basically, the reverse procedure described above may be performed. For example, first, the elevating frame 11 is raised to the first elevating frame first fixed position, then the upper frame 9 is advanced to the third upper frame upper fixed position, and the shift frame 10 is moved to the second shift frame second fixed position. Each roll gripping tool 12a of the roll gripping and releasing device 12 is moved to the roll gripping tool fixed position, and then the lifting frame is lowered to the lifting frame third fixed position, and then the two opposing roll gripping tools 12a are brought close to each other. After holding the roll 6 between the gripping tools 12e, the sliding frame 4 of the roll grinder 1 is slid to be pulled away from the roll 6 so that its rotation center 4a is disengaged from the center hole of the end face of the roll 6, and then the shift frame. 10 is moved to the first fixed position of the shift frame, and then the lifting frame 11 is moved to the first fixed position of the lifting frame. Then, the upper frame 9 is retracted to the upper frame second fixed position, and then the elevating frame 11 is lowered to the elevating frame second fixed position to place the roll 6 on the roll mounting table 8 and then the roll. The roll gripping device 12a of the gripping and releasing device 12 is separated to the roll gripping tool fixed position to open the roll 6, and then the ascending / descending frame 11 is lifted to the elevating frame first fixed position to lift the upper frame. Retract the frame to the first fixed position.

As a result, the roll 6 is moved from the roll grinder 1 to the roll mounting table 8 of the device of the present invention, and thereafter, the roll 6 is transported to a roll storage place by an appropriate transport device. If the preliminary roll mounting table 8'is provided, the roll mounting table 8'is carried by the transport device while the roll grinding machine 1 grinds the roll 6 to carry the next predetermined roll 6. After being mounted on the roll mounting table 8, the device of the present invention can temporarily transfer the roll 6 mounted on the roll mounting table 8 to the preliminary roll mounting table 8'and move the ground roll 6 to the roll mounting table 8 at any time. If it is not possible to immediately convey the roll 6 that has been ground by the conveying device, the next roll 6 placed on the preliminary roll placing table 8 ′ should be mounted on the roll grinder 1. Or, the roll 6 that has been ground is suddenly moved from the roll grinder 1 to the preliminary roll mounting table 8 ′, and the next roll 6 that has been previously conveyed and placed on the mounting table 8 is continuously subjected to roll grinding. Like to attach it to panel 1 Further, it may be possible to selectively move the ground rolls 6 to the empty mounting table of both mounting tables 8 and 8 '. By doing so, it is possible to improve the grinding operation rate of the roll grinder 1 as much as possible, and it is not necessary to restrict the carrying device for carrying the rolls 6 to the roll grinder 1 for loading and unloading the rolls. At the same time, a large amount of other transportation can be performed with a margin. In other words, in the case where the preliminary roll mounting table 8'is provided, in any case, it suffices to operate each part including each frame and member described above according to the work content described above. It should be automated corresponding to.

In order to stop the movements of the respective portions including the above-mentioned frames and members at the respective fixed positions, the movement means 9e, 10e, 11f, 12e (for example, hydraulic cylinders or hydraulic motors as rotation driving means). ) Is used effectively, and the proximity sensor 13 is installed at each fixed position necessary for confirming whether or not it has stopped without fail, and each control mechanism is installed. Then, if the switch is operated to start the movement, the work of attaching and detaching the roll 6 can be automated without avoiding the roll grinder 1 and the device of the present invention.

[0034]

[Effect of the device]

 As described above in detail, the roll attachment / detachment device for the grinding machine according to the present invention, which is easy to automate, faces the roll attachment / detachment position on the roll grinder, and serves as an immovable base for the roll attachment / detachment position. A base is provided, and the lower frame as such a base is movable in two directions in the front-back and up-down directions, or in the left-right direction. Not only by combining three types of free frames, but also when the roll is gripped or released at a certain height position corresponding to the attachment / detachment position of the roll, regardless of the roll diameter, the roll axis By combining the roll grippers configured so that the line height is always constant and operating them appropriately, the roll can be reliably positioned at the roll attachment / detachment position on the roll grinder. The center holes on both end surfaces of the roll can be accurately aligned with the rotation center of the roll grinder, and the necessary parts and the operation of each part can be set appropriately according to the roll grinding mode of the roll grinder. It can be kept to a minimum.

Therefore, the automation of the entire apparatus is easy, and the automation eliminates the work of attaching and detaching the roll to and from the roll grinder, which was mainly operated by human beings in some way, and the heavy burden on the operator is eliminated. This eliminates the danger associated with this work, and automates a series of roll grinding processes by robotizing the transfer device such as rolls and combining it with an automated NC roll grinder. It is possible to secure not only safety but also high productivity at the same time, and the industrial value of the device of the present invention is very great.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a roll attaching / detaching device for a roll grinder according to the present invention, which is easy to automate.

FIG. 2 is a sectional view taken along the line AA in FIG.

FIG. 3 is an overall perspective view of an embodiment of a roll attaching / detaching device for a roll grinder according to the present invention, which is easy to automate.

FIG. 4 is a schematic explanatory view showing an outline of roll grinding by a roll grinder.

[Explanation of symbols]

 1 Roll Grinder 2 Base 3 Fixed Frame 3a Rotation Center 4 Sliding Frame 4a Rotation Center 5 Grinder 6 Roll 7 Lower Frame 7a Horizontal Beam 7b Center and Rear Horizontal Beams 7c Support 7d Front Horizontal Beam 7e Sliding Bed 8 Roll Loading Table 8a Roll Support section 8'Spare roll mounting table 9 Upper frame 9a Side frame 9b Upper horizontal frame 9c Lower horizontal frame 9d Slider 9e Moving means (hydraulic double acting cylinder) 9f Sliding bed 10 Shift frame 10a Upper horizontal frame 10b Vertical frame 10c Lower horizontal frame 10d Slider 10e Moving means (hydraulic cylinder) 11 Lifting frame 11a Roll gripping and releasing device mounting portion 11b Rod 11c Connecting frame 11d Vertical guide 11f Moving means (hydraulic cylinder) 12 Roll Lifting opening device 12a roll gripper 12aa recess 12ab upper base 12b substrate deepest point 12ac roll gripper recesses 12c guide rod 12d threaded rod 12e moving means (hydraulic motor) 13 proximity sensor

Claims (5)

[Scope of utility model registration request] 1. A roll (6) is supplied to a roll attachment / detachment position of a roll grinder (1), or the roll (6) attached to a roll attachment / detachment position of the roll grinder (1) is removed to remove the roll. A roll attachment / detachment device for a roll grinder, which is easy to automate and is equipped with the following parts for moving the grinder (1) to the outside. On a substantially stationary roll attaching / detaching position on the roll grinder (1) and having an immovable positional relationship with respect to the roll attaching / detaching position, with respect to the axis of the roll (6) at the roll attaching / detaching position. An upper frame (9) which can be moved in a vertical horizontal direction by a moving means (9e) and can be stopped at a predetermined position, and a part of the upper frame (9) on the roll grinder (1) side which can be moved only vertically. A roll attached to both sides of the lower end of the frame, the two roll gripper opening device attachment parts (11a) being parallel to the roll axis of the roll attachment / detachment position and of the roll (6). An elevating frame (11), which is provided with a space substantially equal to or less than the length, is movable up and down by a moving means (11f) and can be stopped at a predetermined position, and both roll gripping releases of the elevating frame (11) At the bottom of the device mounting part (11a) A device mounted at the same height, having a vertically open recess (12aa) for gripping and gripping the roll (6) from both sides, and this recess (12aa) extends from its open end. Innermost point
A pair of roll grippers (12a) formed in a shape in which the upper and lower sides are substantially evenly converged up to (12ab), are provided in the recess (1) in a direction perpendicular to the roll axis at the roll attaching / detaching position.
A roll gripping and releasing device (12) which is mounted such that the open ends of 2aa) face each other and which grips or releases the rolls (6) by approaching or separating from each other by the moving means (12e). 2. A lower frame (7) is a base that faces a substantially horizontal roll attachment / detachment position on the roll grinder (1) and is in a positional relationship with respect to the roll attachment / detachment position.
A roll having a pair of roll supporting portions (8a) for supporting both end portions of the roll (6) in parallel with the roll axis at the roll attachment / detachment position in the vicinity of the roll grinder (1) side of (7). The roll attaching / detaching device for a roll grinder according to claim 1, wherein a mounting table (8) is provided. 3. A base, which faces a substantially horizontal roll attachment / detachment position on the roll grinder (1) and is in a positional relationship with respect to the roll attachment / detachment position, has a width larger than that of the roll mounting table (8). The lower frame (7), wherein an upper frame (9) is laid over the lower frame (7).
Alternatively, the roll attachment / detachment device for a roll grinder as described in 2 is easy to automate. 4. The movable member (10e) is movable in a direction parallel to the roll axis at the roll attachment / detachment position while being retained by the portion of the upper frame (9) on the roll grinder (1) side. Shift frame (10) that can be stopped at a predetermined position
Is provided on the roll grinder (1) side portion of the shift frame (10), and an elevating frame (11) capable of stopping vertically at a predetermined position is provided, and Both roll gripping open mounting part of the lifting frame (11)
The roll attaching / detaching device for a roll grinder according to any one of claims 1 to 3, characterized in that a roll gripping / releasing device (12) is provided at each of the lower ends of the (11a). 5. A base, which faces a substantially horizontal roll attaching / detaching position on the roll grinder (1) and has a fixed positional relationship with respect to the roll attaching / detaching position, has a width larger than that of the roll mounting table (8). A lower frame (7) having, wherein the lower frame (7) is
Horizontal beams (7a) on both sides of the roll grinder (1), which are perpendicular to the roll axis at a substantially horizontal roll attachment / detachment position and are horizontal, and central and rear transverse beams (7b) perpendicular to the horizontal beams (7a). ), Four columns (7c) and a front cross beam (7d) provided at a lower position in parallel with the roll attaching / detaching position between the columns (7c) on the side of the roll grinder (1). 5. A mounting table (8) is provided on the front transverse beam (7d), and a spare roll mounting table (8 ') is provided on the central transverse beam (7b). The roll attachment / detachment device for a roll grinder according to any one of items 1 to 6, which is easy to automate.