KR100737797B1 - Device for connecting key into slot - Google Patents

Abstract

A choke key alignment device for a rolling roll is disclosed. Its construction consists of a choke key alignment device of a rolled roll for aligning the key groove of the rolled roll with the choke key for assembling the rolled roll and the choke of different diameters, the lower surface and the lower reference point of the rolled roll placed on the seating table. A measuring unit including a lower height measuring means for measuring a distance between the upper surface of the rolling roll and an upper height measuring means for measuring the distance between the upper reference point and the position of the key groove formed on the side surface of the rolling roll. Sensing unit for sensing and storing the position of the choke key to be assembled: and adjusting the height of the rolling roll from the lower reference point according to the diameter of the rolling roll measured in the measuring unit, and rolling roll according to the position of the choke key stored in the sensing unit Rotating includes an adjusting unit for matching the position of the choke key and the key groove of the rolling roll.

Choke Key, Keyway, Choke Key Alignment

Description

Choke Key Alignment Device for Rolling Rolls {Device for connecting key into slot}             

1 is a view showing the overall configuration for the choke key alignment device of the rolling roll according to the present invention,

2 is a perspective view and a partially enlarged view of the connecting member and the sensing unit in FIG. 1, FIG.

3A and 3B are enlarged perspective views of the side portions of the rolling rolls for showing the key grooves, and FIG. 3C shows a key inserted into the key grooves of the rolling rolls as a cross section of the choke.

4 is an enlarged view of main parts of the adjustment unit.

The present invention is the center of the choke and the target roll (rolling rolled or roll just finished polishing), which is necessary for the regular replacement of the rolling rolls, such as cold rolling, more precisely the key groove and choke size of the rolling roll It relates to a choke key alignment device for positioning.                         

Rolling rolls, which are used in the hot rolling process or in cold rolling lines that produce cold rolled products, generate fatigue layers on the surface of the rolls as the work progresses, and thus surface defects occur in (cold rolled) products. Rolling roll replacement needs to be done.

In general, the replacement of the rolling rolls is performed by a seating table on which the roll is seated and a choke detacher disposed on both sides of the seating table.

The choke detacher is installed on the rails on both sides of the seat so as to be movable back, front, left, and right, and the choke is assembled on the rolling roll while moving from the old roll (rolled roll finished) to the new roll (roll finished rolled).

However, since the direction of the key grooves of the rolled rolls drawn out and the new rolled rolls ground in the grinding machine are different from each other, it is necessary to make the choke key position match the key groove position of the rolled roll to be assembled.

Conventionally, the custom work of the key groove of the choke key and the rolling roll is to put a large number of rolls on the seating table, and the worker moves the choke detacher and rolls them, first removes the choke from the drawn roll, and then moves to a new rolling roll. After checking the center of the new rolling roll and choke on the neck side, the position of the key groove and the choke key of the rolling roll are rotated using the rotary jig, roughly matched with the experience and skill of the operator, and then the choke is assembled on the rolling roll.

However, the above-mentioned tailoring work by the neck side causes a lot of difference in the degree of matching the key and the key groove by the skill of the operator, and the replacement of the cold rolled roll that requires rapid roll is not performed in time. Supply is not on time and facility utilization is reduced.

In addition, when the choke is assembled, there is a risk that the rolling roll may be pushed over to the seating surface because the choke is not smoothly assembled, and if the key and the key groove are not correctly aligned, the key is frequently dropped due to the breakage of the bolt that fastens the key. Increase time

In addition, there is a risk of a large fire accident and equipment damage due to the friction between the rolling roll and the bearing if the rolling roll is put into the line without recognizing the key falling off.

In addition, when loading the rolling mill for cold rolling work, the upper and lower sets of cold rolling rolls are used, but there is no way for the operator to check the size of the roll. When there are many differences in size of the upper and lower cold rolled rolls, the rolling work is poor, so the quality of the cold rolled products and the replacement of the cold rolled rolls are large, so the number of grinding operations is high, which causes problems such as a cost increase.

The present invention has been made to solve the above problems, the object is to recognize the diameter of the rolling rolls with different diameters to check the center of the roll, the choke key fixed by recognizing the direction of the key grooves processed on the roll In accordance with the position of the present invention to provide a choke key alignment device that can facilitate the assembly of chokes on the rolling roll.

The object of the present invention as described above is to measure the diameter of each rolling roll and the position of the key groove formed in the rolling roll even if the rolling rolls having various diameters and fixing the choke key seated on the choke detacher at the position of the measured key groove of the rolling roll. It is achieved by providing a choke key alignment device that can make the choke assembly work on the rolled rolls by matching the positions.

Specifically, the choke key alignment device of the rolled roll according to the present invention for adjusting the position of the key groove and the choke of the rolled roll in order to attach and detach the rolled roll and the choke having different diameters is

Measuring unit including a lower height measuring means for measuring the distance between the upper surface and the lower reference point of the rolling roll placed on the seating table; and an upper height measuring means for measuring the distance between the upper surface and the upper reference point of the rolling roll: And a sensing unit which senses the position of the key groove formed on the side of the rolling roll and stores the chalk key to be assembled: and adjusts the height of the rolling roll from the lower reference point according to the diameter of the rolling roll measured by the measuring unit. On the other hand, the sensing unit is characterized in that it consists of an adjusting unit for rotating the rolling roll in accordance with the position of the choke key stored in memory to match the position of the choke key and the key groove of the rolling roll.

The upper reference point and the lower reference point is a concept for measuring the diameter of the rolling roll to assemble the choke on an absolutely arbitrary basis. In other words, measure the distance (A) from the upper reference point to the upper surface of the rolling roll, and measure the distance (B) from the lower reference point to the lower surface of the rolling roll to determine the distance (C) between the upper reference point and the lower reference point (C). Since the diameter of the rolling roll can be calculated by subtracting the value, the upper reference point and the lower reference point can be arbitrarily determined.

In the choke key alignment device of the rolling roll of the present invention, the upper height measuring means may include a sensor having a horizontal member and moving forward and backward and mounted on a moving frame positioned on an upper portion of the rolling roll so as to be raised and lowered.

That is, when the sensor descends from the upper side of the rolling roll on which the choke is to be assembled and detects the upper surface of the rolling roll, it stops and measures the falling distance (falling distance from the upper reference point, A) until then, and then measures the diameter of the rolling roll. Is used to calculate

The sensor may be configured as a kind of optical sensor (position detection sensor) for detecting the position of the surface (horizontal surface) of the rolling roll while descending while being spaced apart from the side end of the rolling roll at a distance from the side of the rolling roll or the surface of the rolling roll It can be configured to a kind of contact sensor that descends to the surface of the rolling roll to stop the contact and stops the down when contacting to measure the distance to that time. The component having such a function is a conventional technology that can be adopted by any person of ordinary skill in the art of the present invention, and further detailed description thereof will be omitted.

In addition, in the choke key alignment device of the rolling roll of the present invention, the rising and falling of the sensor may cause the sensor to be raised and lowered by the operation of the hydraulic cylinder installed on the horizontal member of the moving frame.                     

In addition, in the choke key alignment device of the rolling roll of the present invention, the sensing unit detects the position of the key groove (one or two or more, usually two) formed on the side of the rolling roll, and detects the position of the choke key groove to be assembled. The sensing part is provided with a horizontal member and moves back and forth, and is mounted to be movable up and down by hanging on a moving frame and an upper horizontal member positioned at the top of the rolling roll, and installed to move left and right in the longitudinal direction of the rolling roll. It consists of a connecting member and a rotating plate provided on the connecting member and having a guide rod on the surface thereof which can be inserted into the key groove of the rolling roll. The guide rod is rotated together with the rolling roll while being inserted into the key groove of the rolling roll. It may be configured to move to a location.

In addition, the connecting member in the choke key alignment device of the rolling roll of the present invention may be to form a screw shaft and a screw pair capable of forward and reverse rotation horizontally installed on the horizontal member of the moving frame.

That is, the connecting member provided with the sensing unit forms a screw shaft and a screw pair capable of forward rotation and reverse rotation installed on the horizontal member of the moving frame. It is to move horizontally on the top of the rolling roll.

In addition, in the choke key alignment device of the rolling roll of the present invention, the height of the rolling roll is adjusted from the lower reference point according to the diameter of the rolling roll measured by the measuring unit, and the rolling roll is rotated according to the position of the choke key groove which the sensing unit stores. Adjusting unit to match the position of the keyway to the lower seating table: and the upper seating table located above the lower seating table: and the distance adjusting means for adjusting the separation distance between the lower seating board and the upper seating table: It may be a configuration including a pair of rotary rolls installed and supporting the rolling rolls.

Here, the distance adjusting means is to adjust the separation distance between the lower seating board and the upper seating to place the key groove of the rolling roll to the position of the choke key seated on the fixed choke remover horizontal axis umbar installed in the lower seating It may include a gear: and a vertical shaft gear gear that is vertically meshed with the horizontal shaft gear and one end is in contact with the upper seat plate and the motor for forward and reverse rotation of the horizontal shaft gear.

In addition, the lower height measuring means for measuring the distance between the lower surface and the lower reference point of the rolling roll placed on the seating table when the distance adjusting means of the choke key alignment device of the rolling roll of the present invention is configured as described above, The upper plate located between the rotating rolls and the lower part of the rolling roll; and the rack gear fixed to the upper plate; and the motor fixed to the upper seating plate and capable of forward and reverse rotation, and the rack gear. It may be configured to include a pinion that rotates with the motor shaft to measure the distance between the lower surface of the rolling roll and the lower reference point according to the resistance change of the motor when the upper plate is raised to contact the lower surface of the rolling roll.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the choke key alignment device of the rolling roll of the present invention based on the technical spirit as described above will be described.

In the following description, description through drawings is added for a more thorough understanding of the present invention, but it is apparent to those skilled in the art that the present invention may be practiced without these drawings and detailed description. In some cases, addition of symbols and descriptions thereof are omitted for known features that may unnecessarily obscure the subject matter of the present invention and well known systems are shown in block form. This is to avoid unnecessarily obscuring the disclosure of the present invention.

1 is a view showing the overall configuration for the choke key alignment device of the rolling roll according to the present invention, Figure 2 is a perspective view and a partially enlarged view of the connecting member and the sensing portion in Figure 1, Figures 3a and 3b is a roll It is an enlarged perspective view of a side part of a roll, and is a figure for showing a key groove, FIG. 3C is sectional drawing of a chalk, FIG. 4 is an enlarged view of the principal part of an adjustment part.

Referring to Figure 1, the reference numeral 200 is a movable frame located in the upper portion of the rolling roll 10, the horizontal member 201 is installed in the horizontal direction at the top. The hydraulic cylinder 202 is installed on the horizontal member to serve to raise and lower the upper height measuring means for measuring the distance between the upper surface of the rolling roll 10 and the upper reference point. In Figure 1, the upper height measuring means is composed of a support plate 301 and the position detection sensor 300 installed on the support plate, the support plate is installed to be moved to the left and right by forming a screw shaft 320 and a screw treatment. . Reference numeral 330 denotes a motor for rotating the screw shaft 320.

Movement of the moving frame 200 is possible by the assembly of the wheel 203, the motor 204 and the chain 205 provided on both sides.                     

The sensing unit which senses the position of the key groove 5 (see FIGS. 3A and 3B) formed on the side cross-section of the rolling roll 10 and stores the position of the chalk key 15 (see FIG. 3C) to be assembled is the upper height measuring means. As shown in FIG. 1, the connecting member 310 is connected to the horizontal member 201 and the hydraulic cylinder 202, and the rotary plate 313 is installed to the connecting member. The surface of the rotating plate is provided with a guide rod 311 is provided with a key groove sensor 312, which is a means for detecting the position of the key groove 5 formed on the rolling roll (10).

In FIG. 2, an enlarged view of the sensing part is shown. In this embodiment, two key grooves 5 formed on the rolling roll 10 are formed on the side surface, and the guide rod 311 is formed on the rotating plate 313. Dogs are formed.

In the guide bar 311, two sensors 312 are installed to detect the key groove 5 of the rolling roll, and the motor 330 stops when the two sensors detect both the key grooves.

When the sensing unit detects the key groove 5 of the rolling roll, the connection member 310 moves inward with the rotation of the screw shaft 320 to insert the guide rod 311 into the key groove 5.

In FIG. 2, reference numeral 315 denotes a touch bye and 325 denotes a touch sensor, which is a means for storing a fixed choke key position mounted on a fixed choke detacher. That is, the touch bar 315 and the touch sensor 325 are installed in contact with the position of the chalk key and the touch bar 315 and the touch sensor 325 with the guide rod 311 inserted therein. ), The rolling roll 10 is rotated by the adjustment unit described later until the contact is made to coincide with the position of the choke key 15 (see FIG. 3C) and the key groove 5.

Next, adjust the height of the rolling roll from the lower reference point according to the diameter of the rolling roll measured by the measuring unit, and rotate the rolling roll according to the position of the choke key memorized by the sensing unit to match the position of the choke key and the key groove of the rolling roll. The control unit to be described.

As shown in FIGS. 1 and 4, the adjusting part is disposed between the lower seating table 403 and the upper seating table 402 on the upper seating table 402 located above the lower seating table. It is composed of a pair of rotary rolls 400 installed on the distance adjusting means and the upper seating table 402 for supporting the separation distance and supporting the rolling roll 10.

In FIG. 4, the distance adjusting means is vertically engaged with the horizontal axial gear 410 installed in the lower seat 403 and the horizontal axial gear 410, and the vertical axis worm gear 420 having one end in contact with the upper seat 402. ) And a motor (not shown) that rotates the horizontal axial gear 410 forward and reverse, thereby controlling the separation distance between the lower seat 403 and the upper seat 402.

Of course, this controlled separation distance is to compensate for the position (height) of the key groove 5 according to the rolling roll 10 having a different diameter.

On the other hand, there is shown a lower height measuring means for measuring the distance between the lower surface and the lower reference point of the rolling roll 10, the bar is installed on the upper seat 402 and supporting the rolling roll 10 The upper plate 440 positioned between the pair of rotary rolls 400 and the lower portion of the rolling roll 10 and the rack gear 422 fixed to the upper plate and fixed to the upper seat 402. On the other hand, it consists of a pinion 432 that is engaged with the motor 450 and the rack gear 422 capable of forward and reverse rotation and rotates with the rotation of the motor shaft, the upper plate 440 is raised to the lower portion of the rolling roll 10 The distance between the lower surface of the rolling roll 10 and the lower reference point is measured according to the resistance change of the motor 450 upon contact with the surface.

In FIG. 4, reference numeral 411 is a guide guide and is inserted into a guide hole 412 formed in the lower seating table 403 to ascend and descend. In addition, 460 is a guide hole is inserted into the guide guide 470 is raised and lowered.

Referring to the operation relationship by the configuration of the embodiment of the present invention as described above are as follows.

The device of the invention is preferably implemented by suitable control means. These control means, of course, are accompanied by control commands programmed into the components of the present invention as components apparent to those skilled in the art.

Although not shown in FIG. 1, the operation relationship will be described under the premise that there is a controller. First, the moving frame 200 moves to the position where the rolling roll 10 to be assembled at the command of the controller is located, and the hydraulic cylinder 202 is provided. Is lowered until the sensor 300 detects the upper surface of the rolling roll 10, and the lowering distance A from the upper reference point is stored by the controller.

Of course, the upper reference point may be the home position of the sensor before the hydraulic cylinder is operated.

Next, the upper plate 440 is raised to the lower surface of the rolling roll 10 by the operation of the rack gear 422 and the pinion 432 connected to the motor 450 to adjust the distance B from the lower reference point. Measure and it is memorized by the controller.

Of course, the lower reference point may be the home position of the upper plate 440 before the motor 450 operates.

In this operation, the diameter of the rolling roll 10 (= distance between the upper reference point and the lower reference point (C)-B-A) is calculated and according to the calculated diameter, the upper seating table 402 by the distance previously stored in the controller. ) Is raised by the horizontal axial gear 410, the vertical axial gear 420 and the motor so that the rolling roll 10 is in a horizontal position with the choke.

Next, the connecting member 310 of the sensing unit is lowered by the lowering of the hydraulic cylinder 202 by a predetermined distance according to the command of the controller, and the sensor 312 installed on the guide rod 311 coincides with the key groove 5 of the rolling roll. After the guide rod 311 is inserted into the key groove 5 by the rotation of the screw shaft (320).

In this state, the pair of rotary rolls 400 installed on the upper seat 402 by the command of the controller rotates and stops until the touch bar 315 and the touch sensor 325 of the sensing unit come into contact with each other.

By this operation, the position of the key groove 5 of the rolling roll 10 is aligned with the position of the choke key 15, and the choke detacher is advanced inward to finish the work of assembling the choke on the rolling roll.

It will be apparent to those skilled in the art that the present invention described above may be embodied in other forms without departing from the spirit and essential characteristics thereof. Accordingly, the specific embodiments disclosed in conjunction with the drawings herein are exemplary in all respects and should not be construed as limiting. The scope of the invention is indicated by the appended claims rather than the foregoing, and includes all modifications falling within the scope and equivalents thereof.

According to the apparatus of the present invention as described above to recognize the diameter of the rolling rolls with different diameters to confirm the center of the roll, and to recognize the direction of the key groove grooved on the roll to match the position of the fixed choke key to the rolling roll Assembling the choke can be performed smoothly to solve all the problems caused by the conventional manual operation to significantly improve the product quality and productivity in the rolling process.

Claims (8)

In the choke key alignment device of the rolling roll to match the position of the key groove and the choke key formed in the rolling roll for assembling the rolling roll and the choke having a different diameter, A lower height measuring means for measuring the distance between the lower surface and the lower reference point of the rolling roll to assemble the choke; and a measurement including an upper height measuring means for measuring the distance between the upper surface and the upper reference point of the rolling roll part: Sensing unit for detecting the position of the choke key to be assembled while detecting the position of the key groove of the rolling roll: And The height of the rolling roll is adjusted from the lower reference point according to the diameter of the rolling roll measured by the measuring unit, and the rolling roll is rotated according to the position of the choke key stored by the sensing unit. Chock key alignment device of a rolling roll, characterized in that it comprises an adjustment unit for matching the position. The choke of the rolling roll according to claim 1, wherein the upper height measuring means includes a sensor having a horizontal member and moving back and forth and mounted on a moving frame positioned on an upper portion of the rolling roll to raise and lower the roll. Key Alignment. The choke key fitting device of claim 2, wherein the sensor is raised and lowered by a hydraulic cylinder installed on the horizontal member of the moving frame. The moving frame according to claim 1, wherein the sensing unit includes a horizontal member and moves back and forth and is positioned on an upper portion of the rolling roll: Connecting member mounted to the horizontal member to be moved up and down and movable left and right in the longitudinal direction of the rolling roll: It is composed of a rotating plate provided on the connecting member and provided with a guide rod that can be inserted into the key groove of the rolling roll on the surface, the guide rod is rotated with the rolling roll while being inserted into the key groove of the rolling roll of the choke key already stored Choke key alignment device of a rolling roll, characterized in that moved to a position. The choke key alignment device of claim 4, wherein the connection member forms a screw shaft and a screw treatment capable of forward rotation and reverse rotation installed on the horizontal member of the movable frame. The method of claim 1, wherein the adjustment unit Lower Seat: An upper seating plate located above the lower seating seat: Distance adjusting means for adjusting the separation distance between the lower seating and the upper seating: Choke key alignment device of the rolling roll, characterized in that it comprises a pair of rotary rolls which are installed on the upper seat and support the rolling roll. The method of claim 6, wherein the distance adjusting means Horizontal shaft gear installed in the lower seat: A vertical shaft gear which is vertically engaged with the horizontal shaft gear and whose one end is in contact with the upper seat plate; and Choke key alignment device of a rolling roll, characterized in that it comprises a motor for forward and reverse rotation of the horizontal axial gear. The method of claim 6, wherein the lower height measuring means An upper plate positioned between the rotary rolls and below the rolling rolls: Rack gear fixed to the top plate: The motor fixedly coupled to the upper seat while capable of forward and reverse rotation: And A distance between the lower surface of the rolling roll and the lower reference point according to the resistance change of the motor when the upper plate is raised to contact the lower surface of the rolling roll by including the pinion meshing with the rack gear and rotating with the rotation of the motor shaft. Choke key alignment device of a rolling roll, characterized in that for measuring.

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