KR20030035579A - Apparatus for removing grinding chip - Google Patents

Abstract

PURPOSE: An apparatus for automatically collecting grind chips is provided to prevent the axial wear of a magnetic roll motor and the flooding of the cutting oil at a reservoir due to the axial wear of the magnetic roll motor. CONSTITUTION: An apparatus for automatically collecting grind chips is composed of a guide portion for guiding the cutting oil containing grind chips through a fluid path(17) to a reservoir(70) and a main body for passing the cutting oil and grind chips through a magnetic roll(50) and tension roll(56). The main body(40) comprises a rotation detective sensor, a worm motor(46) controlled by the rotation detecting sensor, a working shaft moving up and down, and a roll bearing box(57-1) connected with the working shaft. The tension roll is automatically controlled with respect to the amount of the grind chips introduced therein. There is a rotation screw(71) having wings and nozzles(79) for injecting the cutting oil to move the grind chips floating on the cutting oil toward the screw, and then to guide the grind chips to the magnetic roll by the wings of the screw. An eccentric shaft(72) is installed at the reservoir to provide the cutting oil containing the grind chips for the main body.

Description

Apparatus for removing grinding chip

The present invention relates to an apparatus for removing the polishing chips generated in the grinding operation of the rolling rolls in the sedimentation basin, and more particularly, to smoothly maintain the flow of the grinding chips in the sedimentation basin, so that the polishing chips do not accumulate in the sedimentation basin. The present invention relates to an automatic polishing chip collection device capable of smoothly collecting abrasive chips by automatically adjusting the separation roll interval according to the amount of chips.

In general, roll grinding of steel mills is to grind the surface of rolls that have been replaced after rolling, and the grinding surface is smoothly processed by continuously supplying grinding oil mixed with cooling water and grinding liquid to the polishing surface during grinding. At the same time, the polishing surface is prevented from being overheated, thereby improving the polishing efficiency.

In such a polishing operation, the polishing chip 10 is mixed with the grinding oil after the polishing operation as a by-product of the friction between the abrasive stone and the roll, and temporarily stays in the habitual sedimentation basin 11 which temporarily accumulates through the water channel 17, and then the motor ( 18 is inserted between the magnetic roll 13 which is rotated by 18) and the rubber roll 12 which is mounted to rotate while lowering the roll 13 so that the metallic polishing chip 10 is attached to the surface of the magnetic roll 13 The chip removal plate 14 was discharged to the chip box 16 installed in the underground pit 15, and the separated grinding oil was re-supplied to the grinding oil tank so that it could be sent back to the grinding machine and reused for roll polishing.

At this time, the grinding chip 10 may remain in the grinding oil to be reused after grinding, thereby lowering the concentration of the grinding oil. , The volume of the reciprocal sedimentation basin 11 continues to decrease, and after a while, the grinding oil overflows from the reciprocal sedimentation basin 11 and contaminates the workplace.

Thus, an operator shovels the polishing chip 10 into the chip box 16 in the underground pit 15 or forcibly floats the polishing chip 10 using a tool, in some cases instantaneously a large amount. Of the polishing chip 10 is inserted into the magnetic roll 13 and the rubber roll 12, the operation of the magnetic roll 13 is lost, and further, the shaft of the motor 18 connected to the magnetic roll 13 is also damaged. It was.

In addition, the abrasive chip 10 is introduced into the grinding oil tank as it is together with the grinding oil, which causes a sharp decrease in the concentration of the grinding oil. When the grinding oil having such a lower concentration is used, the surface of the roll is not beautiful and the surface must be regrind. Of course, the increase of working time caused the delayed roll-out of the rolled stand, which resulted in the stopping of work. In addition, the reduced concentration of the grinding oil is accompanied by odor, which causes worker's respiratory difficulties and work motivation. there was.

The present invention was devised to solve the above problems, and when the grinding oil introduced through the channel after the roll polishing and the abrasive chips included in the sedimentation basin, the high pressure grinding oil is sprayed to float the abrasive chips, Using the rotary screw and the eccentric shaft to guide the separation roll to prevent the accumulation of abrasive chips in the sedimentation basin, and to automatically adjust the roll gap according to the amount of the abrasive chips. The purpose is to provide.

Other objects and advantages of the invention will be described below and will be appreciated by the practice of the invention. In addition, the objects and advantages of the invention may be realized by the means and combinations indicated in the appended claims.

1 is a view showing a situation of a conventional polishing chip collection device.

2 is a block diagram of an automatic polishing chip collection device according to the present invention.

Figure 3 is an exploded perspective view of the main part of the automatic polishing chip collection device according to the present invention.

Figure 4 is a side cross-sectional view of the A-A portion of FIG.

5 is an operational state diagram of the automatic polishing chip collection device according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: chip 11: habitual precipitation basin

14 chip removal plate 15 pit

16: chipbox 17: waterway

40: body 41: body cover

42-1, 2: working shaft 43-1, 2: worm wheel

44: worm 46: worm motor

50: magnetic roll 55: roll motor

56: tension roll 58: rotation detection sensor

59-1, 2: limit switch 70: settling basin

71: screw 79: grinding oil spray nozzle (nozzle)

72: eccentric shaft

The polishing chip automatic collection device of the present invention for achieving the above object,

After the grinding operation by the operation of the grinding machine, the grinding oil containing the grinding chip 10 is introduced into the settling basin 70 through the water channel 17, and the grinding oil and the grinding chips introduced after staying in the settling basin 70 ( 10) separated by passing through the magnetic roll 50 and the tension roll 50, and consists of a body portion for supporting various parts for this,

The body portion,

Rotation sensor 58 for determining whether the tension roll 50 is rotated, a worm motor 46 controlled by PLC connected to the rotation sensor 58, and the worm motor 46 The upper and lower working shafts 42-1 and 2 which operate vertically in two grooves penetrating the body 40 by the upper and lower ends of the operating shafts 42-1 and 2, together with the body 40 Roll bearing boxes 57-1 and 2, which are operated up and down along the grooves of the support legs, are provided.

The tension roll 56 whose shaft is supported by the roll bearing boxes 57-1 and 2 is automatically adjusted up and down with respect to the magnetic roll 50 in response to a change in the amount of the abrasive chip 10 flowing therein.

In the sedimentation basin 70 of the induction part,

A folding corrugated plate 70a is attached to the middle point in the longitudinal direction, and the front part of the body side is movable, and a rotating screw 71 having a plurality of wings is installed at a certain distance behind the corrugated plate 70a. In the bottom of the settling basin 70, a plurality of grinding oil injection nozzles 79 for injecting grinding oil at high pressure are provided at a predetermined injection angle,

The grinding chips 10 collected in the settling basin 70 by the grinding oil injected from the grinding oil spray nozzle 79 are suspended and moved along the settling basin 70 along the longitudinal direction toward the screw 71. Subsequently, the blade plate of the rotating screw 71 is guided to the magnetic roll 50 of the body 40.

The eccentric shaft 72 is connected to the shaft motor 74 in the lower portion of the front of the settling basin 70 of the induction part,

By rotating the eccentric shaft 72, the eccentric portion of the eccentric shaft 72 and the other portion contact the lower surface of the upper clarifier 70 so that the front part of the clarifier 70 is operated up and down, and the screw ( It is characterized in that the supply of grinding oil and the grinding chip 10 guided by the 71) to the body 40 at a predetermined interval.

Preferably, the screw sprocket 75 provided on one side of the screw 71 is connected to the roll sprocket 53 provided at one end of the magnetic roll 50 by a chain 80, the magnetic roll 50 The other end of the rotating operation by the connected roll motor 55,

The roll motor 55 is automatically operated when the power supply for the polishing machine for the polishing operation.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 shows an automatic polishing chip collection device according to the present invention, Figure 3 is an exploded perspective view of the main part of the device, Figure 4 shows a side cross-sectional view of the A-A portion of FIG.

The abrasive chip automatic collection device of the present invention is largely composed of a body portion for supporting and operating various components and an induction portion for smooth flow of grinding oil.

Body 40 of the body portion is composed of a plurality of stages, the two cylindrical grooves are machined through the operating shaft bearing (47-1, 2) for supporting the operating shaft (42-1, 2) and The working shafts 42-1 and 2 are assembled in sequence.

At the first end of the cylindrical hole of the body 40, the worm wheels 43-1 and 2 are seated and properly machined to rotate. As shown in Fig. 2, the worm wheels 43-1 and 2 are penetrated to the side of the cylinder on which the worm wheels 43 and 2 are inserted. The outer surface of the upper surface is processed a plurality of bolt holes, the protruding base is provided integrally, the worm motor 46 is seated by the fixing means, the lower portion of the body 40 forms one end in the inner side and "B" and Support legs having the same groove are provided, and some of the support legs are provided with two upper and lower limit switches 59-1 and 2 at a predetermined distance, and a lower end of the support legs has protrusions to fix them to the floor by fixing means. do.

Both ends of the worm 44 are inserted into the worm bearings 45-1 and 2, and the worm bearings 45-1 and 2 are inserted into and fixed to the processed portions of the body 40, and the worm 44 One end of the worm is connected to the worm motor 46 through which the reverse rotation is possible through the worm bearing 45-2.

The rectangular plate-shaped body cover 41 has grooves machined to be assembled on a straight line corresponding to the operation shafts 42-1 and 2 assembled to the body 40, so that the operation shafts 42-1 and 2 are provided in the grooves. ) Are assembled together with the bearings 47-3 and 4, and holes are formed on the outer surface of the cover 41 to coincide with the centers of the holes machined on the upper surface of the body 40. Assembly is fixed.

Both ends of the tension roll 56 processed with an elastic material are assembled with the roll bearing boxes 57-1 and 2, and the protrusions above the roll bearing boxes 57-1 and 2 are assembled with the body 40. Holes into which one end of the protruding working shafts 42-1 and 2 can be inserted are machined to a certain depth so that they are assembled to both working shafts 42-1 and 2 at the same time. "B" is inserted into the roll bearing boxes (57-1, 2) up and down along the groove of the support leg by the action of the operating shaft (42-1, 2), one end of the tension roll 56 It is assembled to the rotation detection sensor 58 through the roll bearing box 57-2, and the rotation detection sensor 58 is connected to a worm motor 46 and a programmable logic controller (PLC) (not shown). do.

At one end of the support leg of the body 40, bearing boxes 51-1 and 2 assembled at both ends of the magnetic roll 50 are inserted to separate the roll bearing boxes 57-1 and 2 assembled at the upper end thereof. prevent.

One end of the magnetic roll 50 is assembled to the roll motor 55 through the bearing box 51-2, the roll motor 55 is automatically operated when the power supply of the grinder (not shown), the magnetic roll The other end of the 50 is machined as shown by "C" in the drawing to fasten the roll sprocket 53 through the bearing box 51-1 and assemble by the lock nut 54. Dropping is prevented.

On the other hand, the sedimentation basin 70 of the induction part is open at one side of the upper surface and in the longitudinal direction, and the corrugated plate 70a is attached to the folding fan shape at the intermediate point in the longitudinal direction, so that the front part of the body 40 moves. The hole is machined a certain distance behind the corrugated plate 70a so that the screw bearings 76-1 and 2 are inserted and fixed, and the screw 71 is assembled to enable smooth operation. At the projected end of the screw 1 assembled with 76, a screw sprocket 75 is assembled.

As shown, the screw sprocket 75 is connected to the roll sprocket 53 which is driven and rotated by the aforementioned roll motor 55 through the chain 80 to rotate.

In the lower part of the settling basin 70, there are a plurality of supporting legs for the bottom, and in the lower part of the front of the settling basin 70, an eccentric shaft 72 is installed while being supported by the shaft bearings 73-1 and 2. One end of the eccentric shaft 72 is assembled to the shaft motor 74 through the shaft bearing 73-2, and the shaft motor 74 is automatically operated when the power of the grinding machine (not shown) is turned on.

The eccentric shaft 72 is the shaft is eccentrically processed so that the eccentric portion and the other portion in contact with the lower surface of the upper settling basin 70 by the rotation to operate the front portion of the settling basin 70 up and down.

In order to prevent the grinding chip 10 from accumulating on the inner bottom of the settling basin 70, a grinding oil spray nozzle 79 for spraying grinding oil at a high pressure is installed at a predetermined spraying angle to float the grinding chip 10 to prevent precipitation. do.

Such an induction part is set at an appropriate distance from the magnetic roll 50 part of the body part.

In addition, the power supply of the apparatus is connected to the driving switch of the polishing machine so that it is simultaneously driven during the operation of the polishing machine, and the worm motor 46 and the rotation detection sensor 58 of the apparatus are controlled by a PLC (not shown).

The automatic polishing chip collection device according to the present invention having the above configuration works as follows.

5 shows the operating state of the automatic polishing chip collection device according to the present invention.

The grinding oil containing the abrasive chips 10 introduced through the water channel 17 after the grinding operation by the operation of the grinding machine (not shown) is transferred to the grinding oil sprayed at a high pressure from the grinding oil spray nozzle 79 of the sedimentation basin 70. A screw sprocket 75, which is connected by a chain 80 to a roll sprocket 53 which is rotated by a roll motor 55, reaches the screw 71 along a longitudinal sedimentation basin 70 by the screw 71. The grinding oil containing the abrasive chips 10 is guided to the magnetic roll 50 by the wing plate of the rotating screw 71.

At the same time, the eccentric shaft 72 rotated by the shaft motor 74 operates the front part of the settling basin 70 up and down to supply the inflow amount of the grinding oil and the polishing chip 10 to the body part at regular intervals, and the supplied polishing Grinding oil containing the chip 10 is introduced between the magnetic roll 50 and the tension roll 56 rotated by the friction force to separate the grinding chip 10 and the grinding oil, the grinding oil is a grinding oil tank (not shown) And the metallic polishing chip 10 is attached to the magnetic roll 50 and rotated and collected by the chip removing plate 14 to the chip box 16 of the underground pit 15.

At this time, when a large amount of the polishing chip 10 flows between the magnetic roll 50 and the tension roll 56 which are mutually rotated by the frictional force, the magnetic roll 50 and the tension roll 56 stop the operation of the tension roll. Since no signal is transmitted from the rotation sensor 58 connected to the 56, the PLC (not shown) drives the worm motor 46, and the worm motor 46 rotates the worm 44 to prevent the worm 44. The worm wheels 43-1 and 2 engaged with the thread and the operating shafts 42-1 and 2 assembled thereto rotate while being supported by the operating shaft bearings 47-1, 2, 3 and 4, and the operating shaft ( The roll bearing boxes 57-1 and 2 assembled with the threads of 42-1 and 2 are simultaneously lowered left and right by the rotation of the operation shafts 42-1 and 2 so that the magnetic roll 50 and the tension roll ( 56) Close the gap between them.

In addition, when the tension roll 56 is so lowered that the roll bearing boxes 57-1 and 2 and the magnetic roll bearing boxes 51-1 and 2 collide with each other, the limit switch 59-1 provided on the body support leg is provided. As a result, the PLC reversely rotates the worm motor 46 to raise the roll bearing boxes 57-1 and 2 to widen the gap between the magnetic roll 50 and the tension roll 56.

As such, when the distance between the tension roll 56 and the magnetic roll 50 is wide enough to allow a large amount of the polishing chip 10 to pass therethrough, the polishing chip 10 is formed between the magnetic roll 50 and the tension roll 56. The tension roll 56 rotates, and the rotation detection sensor 58 that senses the rotation sends a signal to the PLC to stop the operation of the worm motor 46 to stop the rise of the tension roll 56. .

When a large amount of the polishing chip 10 passes in this way and a small amount of the polishing chip 10 flows in, the magnetic roll 50 and the tension roll 56 are already separated by a constant distance, and thus the tension roll 56 ) Will not rotate. Therefore, when no signal is transmitted from the rotation sensor 58 connected to the tension roll 56, the PLC (not shown) drives the worm motor 46 to contact the tension roll 56 with the magnetic roll 50. To lower the roll bearing boxes 57-1, 2 so that the rolls rotate.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

According to the present invention, it is possible to prevent the shaft break of the magnetic roll motor, to prevent the overflow of the grinding oil in the sedimentation basin due to the shaft loss, there is no need for the operator to remove the grinding chips of the sedimentation basin, Roll waiting can be prevented by regular operation of the rolls, which can prevent the rolling stop, and prevent the inflow of the grinding chips into the grinding oil tank and maintain the concentration of the grinding oil. Of course, this also has a beneficial effect on reducing workload and worker safety.

Claims (2)

After the grinding operation by the operation of the grinding machine, the grinding oil containing the grinding chip 10 is introduced into the settling basin 70 through the water channel 17, and the grinding oil and the grinding chips introduced after staying in the settling basin 70 ( 10) separated by passing through the magnetic roll 50 and the tension roll 50, and consists of a body portion for supporting various parts for this, The body portion, Rotation sensor 58 for determining whether the tension roll 50 is rotated, a worm motor 46 controlled by PLC connected to the rotation sensor 58, and the worm motor 46 The upper and lower working shafts 42-1 and 2 which operate vertically in two grooves penetrating the body 40 by the upper and lower ends of the operating shafts 42-1 and 2, together with the body 40 Roll bearing boxes 57-1 and 2, which are operated up and down along the grooves of the support legs, are provided. The tension roll 56 whose shaft is supported by the roll bearing boxes 57-1 and 2 is automatically adjusted up and down with respect to the magnetic roll 50 in response to a change in the amount of the abrasive chip 10 flowing therein. In the sedimentation basin 70 of the induction part, A folding corrugated plate 70a is attached to the middle point in the longitudinal direction, and the front part of the body side is movable, and a rotating screw 71 having a plurality of wings is installed at a certain distance behind the corrugated plate 70a. In the bottom of the settling basin 70, a plurality of grinding oil injection nozzles 79 for injecting grinding oil at high pressure are provided at a predetermined injection angle, The grinding chips 10 collected in the settling basin 70 by the grinding oil injected from the grinding oil spray nozzle 79 are suspended and moved along the settling basin 70 along the longitudinal direction toward the screw 71. Subsequently, the blade plate of the rotating screw 71 is guided to the magnetic roll 50 of the body 40. The eccentric shaft 72 is connected to the shaft motor 74 in the lower portion of the front of the settling basin 70 of the induction part, By rotating the eccentric shaft 72, the eccentric portion of the eccentric shaft 72 and the other portion contact the lower surface of the upper clarifier 70 so that the front part of the clarifier 70 is operated up and down, and the screw ( 71) Automatic grinding device, characterized in that for supplying the grinding oil and the induction amount of the abrasive chip 10 guided by the predetermined interval to the body (40). The method of claim 1, The screw sprocket 75 provided at one side of the screw 71 is connected to a roll sprocket 53 provided at one end of the magnetic roll 50 by a chain 80, and the other end of the magnetic roll 50 is Rotational operation by a connected roll motor 55, The roll motor (55) is an automatic polishing chip collection device, characterized in that automatically operated when the power supply for the polishing machine for the polishing operation.