Device for grinding abrasive belt of strip grinder

专利摘要:
An object of the present invention is to install the inside of the grinder equipment to wear out the unused edge portion of the polishing belt to the same extent as the abrasive portion to prevent the damage of the polishing belt and at the same time continuous one polishing belt regardless of the width of the material An object of the present invention is to provide a grinding belt edge grinding device for strip grinder. Accordingly, the present invention, in the strip grinder, the rotating screw is rotatably installed in the bearing block mounted on the front and rear surfaces of the grinder cabin and placed in the width direction from the outside of the polishing belt, and is installed on one side of the cabin and connected to the transfer screw A driving motor for rotating the screw, the moving means including a moving block engaged with the transfer screw and moving along the transfer screw; And a polishing unit including a driving cylinder on the moving block toward the polishing belt, a frame installed at the tip of the piston rod of the driving cylinder, and a dressing roll installed on the frame in the width direction of the polishing belt to polish the polishing belt. An abrasive belt edge grinding device of a strip grinder is provided.
公开号:KR20030049957A
申请号:KR1020010080306
申请日:2001-12-17
公开日:2003-06-25
发明作者:손진관；최문환
申请人:주식회사 포스코；
IPC主号:

专利说明:

Device for grinding abrasive belt of strip grinder
[12] The present invention relates to a strip grinder for polishing a strip that has undergone a stainless annealing pickling process, and to a grinding apparatus for grinding edge edges of a strip grinder to remove a boundary between a wear part and an unwear part of a polishing belt according to a change in a strip width. It is about.
[13] In general, the strip grinder is a facility that removes defects on the surface of the strip subjected to annealing in the stainless strip production process using a polishing belt rotating at high speed, and at the same time polishes the surface of the strip to give roughness and gloss.
[14] FIG. 1 is a view illustrating a general strip grinder, in which a billy roll 102 in which a strip 150 is placed below a cabin 100 is installed, and a drive shaft which is a drive shaft on a strip 150 placed in the billy roll 102 is illustrated. A 104 is provided, and a tension roll 106 is provided on the top thereof, and the polishing belt 108 is rotated over the two rolls 104 and 106.
[15] The strip grinder rotates the polishing belt at a high speed of 1200RPM or more, so that the polishing work is performed in order to periodically reciprocate the polishing belt to prevent the wear of the polishing belt, the strip and the belt edge, and to improve the polishing rate. At the bracket 110 supporting the air sensor 120 is installed.
[16] Therefore, the polishing belt is rotated by the driving of the contact control between the contact control and the tension roll, the strip proceeds between the contact control and the biliroll is to be pressure-polishing on the polishing belt wound around the contact control.
[17] In this grinding process, the grinding belt mounted on the grinder machine should be wider than the width of the strip and can be converted from the wider material of the working strip to the narrower material. none.
[18] This is because when the width of the abrasive belt is worn down during the grinding process is narrower than the width of the strip, severe scratches of the abrasive belt are generated at both edge portions of the strip.
[19] Therefore, the worker always separates and places the polishing belt used for narrow material and the polishing belt used for wide material, and replaces it according to the strip material. There was a problem that the grinding belt is broken at the boundary point of.
[20] Accordingly, the present invention is devised to solve the above problems, and is installed inside the grinder facility to prevent wear of both unused edge portions of the polishing belt to the same extent as the portion to be polished to prevent damage to the polishing belt. It is an object of the present invention to provide an abrasive belt edge grinding device of a strip grinder capable of continuously using one abrasive belt regardless of a material width.
[1] 1 is a perspective view showing a state in which a grinding belt edge grinding device is installed in a grinder according to the present invention,
[2] Figure 2 is a perspective view showing the configuration of the contact control grinding apparatus according to the present invention,
[3] 3 is a partial detailed view of FIG. 2 in accordance with the present invention;
[4] 4 is a perspective view showing a state of grinding the contact control according to the prior art.
[5] Explanation of symbols on the main parts of the drawings
[6] 10: feed screw 11: drive motor
[7] 12: moving block 20: driving cylinder
[8] 21 frame 22 dressing roll
[9] 26: curved portion 27: insertion hole
[10] 28: fixture 30: pin
[11] 31: tension spring 40: guide roll
[21] In order to achieve the above object, the present invention, in the strip grinder, is provided inside the grinder cabin and is selectively adhered to both edge portions of the polishing belt to polish the edge portion of the polishing belt, and the polishing And moving means for changing the polishing position by moving the part along the width direction of the polishing belt.
[22] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[23] 1 is a perspective view showing a state in which a grinding belt edge grinding device is installed in a grinder according to the present invention, Figure 2 is a perspective view showing the configuration of a contact control grinding device according to the present invention, Figure 3 according to the present invention Partial detail view of FIG. 2.
[24] According to the above-described drawings, the strip grinder is provided with a billy roll 102 in which the strip 150 is placed under the cabin 100, and a contact control 104, which is a driving shaft, on the strip 150 placed in the billy roll 102. ) Is installed, and the tension roll 106 is installed on the top, and the polishing belt 108 is rotated across the two rolls (104, 106).
[25] In the present invention, in the strip grinder having the above-described structure, a polishing unit is installed inside the grinder cabin 100 and selectively adheres to both edge portions of the polishing belt 108 to polish the edge portion of the polishing belt 108. And moving means for changing the polishing position by moving the polishing part along the width direction of the polishing belt 108.
[26] First, referring to the moving means, the transfer screw 10 and the cabin 100, which is rotatably installed in the bearing block mounted on the front and rear surfaces of the grinder cabin 100 and placed in the width direction outside the polishing belt 108, Is installed on the drive screw 11 is connected to the transfer screw 10 to rotate the transfer screw 10, the moving block 12 is engaged with the transfer screw 10 and moved along the transfer screw (10) It includes.
[27] The movable block 12 is equipped with a polishing unit on the upper side, so that the guide rod 13 penetrating the moving block 12 on both sides of the transfer screw 10 so as to move the sieve while maintaining the horizontal state of the polishing unit This is installed.
[28] In addition, according to the present embodiment, the transfer screw 10 is formed with threads in opposite directions on both sides of the transfer screw 10, and two moving blocks 12 are also provided, each of which is the same as the start of the transfer screw 10, respectively. The structure is installed with the gap maintained.
[29] Accordingly, when the driving motor 11 is operated, the moving blocks 12 engaged with the transfer screw 10 are gathered inwardly or spread outwardly according to the rotation direction of the transfer screw 10.
[30] On the other hand, the polishing unit is polished to the drive cylinder 20 is installed on the movable block 12 toward the polishing belt 108, the frame 21, the frame 21 is installed at the end of the piston rod of the drive cylinder 20, the frame 21 It is provided in the width direction of the belt 108 and includes a dressing roll 22 for polishing the polishing belt 108.
[31] The surface of the dressing roll 22 is made of the same material as that of the abrasive stone and its hardness is similar to that of the stainless strip.
[32] Therefore, when the driving cylinder 20 is extended, the dressing roll 22 is in close contact with the polishing belt 108 to grind the polishing belt 108.
[33] Here, the frame 21 also has a guide rod 23 on both sides of the piston rod of the driving cylinder 20 to be inserted into the guide holder 24 installed in the moving block 12 to be horizontally guided.
[34] In addition, the dressing roll 22 has a structure in which a semi-circular curved portion 26 is formed at 90-degree intervals as if four rolls are combined as shown in FIG. 25 is axially coupled, and in order to fix the rotating state of the dressing roll 22, an insertion hole 27 is formed at the outer end of each curved portion 26, and the insertion hole 27 in the bracket 25 The fastener 28 having the fixing hole 29 is provided at a position corresponding to the fixing hole 29, and the fixing hole 29 and the insertion hole 27 are penetrated by the fastening pins 30 to fix it.
[35] When the pin 30 is connected to the fixture 28 and the tension spring 31 and releases the pin 30, the pin proceeds to the insertion hole 27 by the elastic force of the spring 31 to form the dressing roll 22. Secure it.
[36] Unexplained reference numeral 32 is a lever for rotating the dressing roll 22 installed at the extended central shaft end of the dressing roll 22.
[37] On the other hand, the polishing unit further includes a pressure increasing means to increase the pressing force when the dressing roll 22 is in close contact with the surface of the polishing belt 108, for this purpose, as shown in Figure 2 polishing belt 108 Two guide rolls 40 are disposed on the base frame in the width direction of the polishing belt 108 and positioned at the upper and lower ends of the dressing roll 22.
[38] When the guide roll 40 is rotated in the idle state, the two guide rolls 40 are spaced enough to support the upper and lower ends of the curved portion 26 of the dressing roll 22.
[39] Hereinafter will be described the operation of the present invention.
[40] The tension belt 106 and the polishing belt 108 mounted to the contact control 104 rotate together with the rotation of the motor connected to the contact control 104. The billy roll 102 is raised to raise the surface of the strip 150. It is in close contact with the polishing belt 108 that rotates at a high speed.
[41] At this time, the edge sensor 50 installed at the mouth of the grinder cabin 100 detects the width of the strip and applies a signal to the control panel. Therefore, the control panel operates the device according to the width of the strip by calculating the detected signal to force wear of the edge portion of the abrasive belt 108 which is not worn.
[42] That is, when the drive motor 11 is operated to rotate the transfer screw 10 according to the signal of the control panel, the moving block 12 engaged with the transfer screw 10 is directed toward the center of the transfer screw 10. Moved inward.
[43] The amount of movement of the movable block 12 is determined according to the width of the strip. When the movable block 12 reaches a suitable position, the driving motor 11 is stopped to stop the movable block 12 at the current position.
[44] In addition, the driving cylinder 20 installed in the moving block 12 is extended to move the frame 21 connected to the tip of the piston rod of the driving cylinder 20 toward the polishing belt 108.
[45] Therefore, the dressing roll 22 installed on the frame 21 is in close contact with the edge portion of the polishing belt 108, and the dressing roll 22 with the edge portion, which is an unweared portion of the polishing belt 108, rotating at a high speed. It can be worn by the surface.
[46] In this case, the driving cylinder 20 maintains a constant pressure at all times, such that the dressing roll 22 and the polishing belt 108 come into contact with the same pressure.
[47] In addition, the dressing roll 22 is installed in the base frame to enter between the guide roll 40 is located inside the polishing belt 108, the curved portion 26 of the dressing roll 22 has two guide rolls 40 The polishing belt 108 is brought into close contact with each other so that the polishing belt 108 is supported by the guide roll 40 and is prevented from being pushed backward.
[48] That is, in the space between the guide rolls 40, the tension due to the elongation of the polishing belt 108 itself is maintained, and only the surface contact of the dressing roll 22 pushed in by the driving cylinder 20 actuates the surface of the polishing belt 108. It is worn the same as direct contact with this strip.
[49] Then, when one side curved portion 26 of the dressing roll 22 is worn to some extent, the pin 30 is pulled outward to release the pin from the insertion hole 27 of the curved portion 26, and then the dressing roll 22 is rotated. When the other bent portion 26 is placed in the working position and the pin is released again, the pin is inserted again by the elastic return force of the spring 31 installed between the pin 30 and the fixture 28. It is fitted into the (27) to fix the dressing roll (22).
[50] According to the grinding belt edge grinding device of the strip grinder according to the present invention as described above, the wear occurs in the same way as the grinding of the strip over the entire surface of the polishing belt, so that the width in a wide material without a separate replacement of the polishing belt In addition to switching to a narrow material, it is possible to switch from a narrow material to a wide material.
[51] In addition, the boundary of the use point of the polishing belt is eliminated, it is possible to prevent fracture of the polishing belt.

权利要求:
Claims (3)
[1" claim-type="Currently amended] In strip grinders,
A transfer screw rotatably installed in the bearing blocks mounted on the front and rear surfaces of the grinder cabin and placed in the width direction from the outside of the polishing belt, and a drive motor installed on one side of the cabin and connected to the transfer screw to rotate the transfer screw, the transfer Moving means including a moving block engaged with the screw and moving along the transfer screw;
A polishing part including a driving cylinder on the moving block toward the polishing belt, a frame installed at the tip of the piston rod of the driving cylinder, and a dressing roll installed on the frame in the width direction of the polishing belt to polish the polishing belt;
Grinding belt edge grinding device of the strip grinder comprising a.
[2" claim-type="Currently amended] According to claim 1, wherein the dressing roll has a semi-circular curved portion formed in a 90-degree intervals, such as four rolls combined, the central axis is coupled to the bracket extending from the frame, the insertion hole at the outer end of each curved portion Is formed, the bracket is provided with a fixing hole formed with a fixing hole in a position coinciding with the insertion hole, the fixing of the strip grinder, characterized in that through the fixing hole and the insertion hole with a fastening pin to fix the position Grinding belt edge grinding device.
[3" claim-type="Currently amended] The polishing roll according to claim 1 or 2, wherein two guide rolls are disposed on the base frame located inside the polishing belt in the width direction of the polishing belt and are positioned at upper and lower ends of the dressing roll, so that the dressing roll adheres closely to the surface of the polishing belt. Edge grinding device for the grinding belt edge of the strip grinder, characterized in that to increase the pressing force.

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同族专利:

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公开号 | 公开日

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KR100778741B1|2007-11-23|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2001-12-17|Application filed by 주식회사 포스코

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2001-12-17|Priority to KR1020010080306A

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2003-06-25|Publication of KR20030049957A

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2007-11-23|Application granted

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2007-11-23|Publication of KR100778741B1

优先权:

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申请号 | 申请日 | 专利标题

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KR1020010080306A|KR100778741B1|2001-12-17|2001-12-17|Device for grinding abrasive belt of strip grinder|