KR100798059B1 - Upright-type switching roller for preventing wear and trouble - Google Patents

Abstract

The present invention relates to an upright type switching roller which absorbs the impact and fluctuation caused by the contact between the cast and the roller to prevent the malfunction and at the same time prevents the contact with the cast just after the passage of the cast to prevent wear and malfunction to prevent wear. .

To this end, the present invention is the slab sensing unit 11 and the operating lever 13 in contact with the slab when the slab inlet, the slab sensing unit 10 consisting of a tension bar 16 capable of vertical flow, and the slab sensing unit 10 And a piston capable of tension adjustment under the shock absorbing part 20 and a shock buffer 20 having a shock absorbing spring 22 which is fastened to the tension bar 16 and absorbs the shock generated when the slab is inserted. It is fastened by the rod 31 provides an upright type switching roller which is prevented from wear and malfunction, characterized in that consisting of the air cylinder portion 30 to lower the slab detection unit 10 downward.

As described above, the present invention absorbs the impact and fluctuations generated when the slab is retracted when the slab is introduced into the feed roller, and prevents the wear of the sensing roller by lowering it so that the sensing roller does not come into contact with the slab during the slab transfer. There is an effect that can be extended.

Cast steel, feed roller, switching roller, cast steel detecting part, shock absorber, air cylinder

Description

UPRIGHT-TYPE SWITCHING ROLLER FOR PREVENTING WEAR AND TROUBLE}

1 is a partial perspective view of a feed roller showing a state in which a conventional switching roller is mounted,

Figure 2 is an exploded perspective view showing the configuration of a conventional switching roller,

3 is an exploded perspective view of an upright type switching roller to prevent wear and malfunction according to the present invention;

Figure 4 is a perspective view of the combination of the upright switching roller to prevent wear and malfunction according to the present invention,

5 is a cross-sectional view of the upright switching roller to prevent wear and malfunction according to the present invention;

Figure 6 is a perspective view showing a state in which the upright type switching roller is mounted on the transfer roller to prevent wear and malfunction according to the present invention,

7 is a schematic view showing the operation and circuit diagram of the upright switching roller to prevent wear and malfunction according to the present invention.

♣ Explanation of symbols for main part of drawing ♣

DESCRIPTION OF SYMBOLS 1 Casting part 2: Feed roller 5: Limit switch 10: Casting part detection part 11: Detection roller                 

13: Operation lever 16: Tension bar 17: Guide 20: Shock absorber 21: Fixing bolt

22: buffer spring 30: air cylinder part 31: piston rod 32: piston

The present invention relates to an upright type switching roller which is prevented from abrasion and malfunction, and more particularly, in a switching roller used to control the transfer of cast steel in a steel mill, it absorbs shock and fluctuations caused by contact between the cast steel and the roller. The present invention relates to an upright type switching roller which prevents abrasion and malfunction by preventing contact with the cast steel immediately after passing of the cast steel while preventing malfunction.

In general, the conventional switching roller used to control the transfer of the cast steel, as shown in Figure 1, the switching roller in which the cast (1) to be transported by the feed roller 2 is located at a predetermined portion on the feed path ( 3) is rotated in contact with the lower part of the cast so as not to interfere with the transfer of the cast (1), and when the cast (1) passes through the position of the switching roller (3) the switching roller was pressed downward by the cast ( 3) will return to the top. That is, when the switching roller 3 is pressed downward, the limit switch 5 fixed to the table frame 4 detects the movement of the cast steel.

As shown in FIG. 2, the conventional switching roller includes a roller lever 6 supporting the switching roller 3, a shaft 7 connected to the feed roller frame, and a weight piece downwardly thereof. By fixing the weight bar 8 'to which the weight 8 is fixed, the switching roller 3 is located above the feed roller by the weight of the weight piece 8, and the cast piece is conveyed to contact the switching roller 3 In this case, the switching roller 3 is operated downward by the weight of the cast steel, and at the same time, the shaft 7 rotates to contact the lever 5 'of the limit switch 5 to detect the cast steel.

At this time, when the geared motor (not shown) of the feed roller rotates, the sprocket gear (not shown) rotates so that the chain rotates so that the feed rollers of one section connected to the chain rotate simultaneously. Will be.

The signal sensed by this operation relationship controls the feed rollers of each feed roller section by PLC control or timer control to control the feed of the cast steel.

However, in the conventional switching roller configured as described above, the shock generated when contacting the cast steel is transmitted to the stopper and the weight bar as it is, causing severe fluctuations, which causes a malfunction of the limit switch, and the roller lever or the weight when used for a long time. The bar is deformed or broken, and furthermore, since the switching roller is always in contact with the cast steel, the wear of the roller is severely generated, and thus the operating range of the switching roller is narrowed, thereby failing to press the lever of the limit switch.

The present invention derived in order to solve the above problems, the slab detection unit for detecting the slab, the impact buffer for absorbing the impact when the slab is introduced, and the detection roller downward to prevent wear by the slab contact after sensing the slab. It is an object of the present invention to provide an upright switching roller which is prevented from abrasion and malfunction with an air cylinder portion drawn down.

In order to achieve the above object, the present invention provides a slab detection unit comprising a sensing roller in contact with the slab when the slab is drawn in, an operating lever installed below the limit switch, and a tension bar capable of vertical flow, and the slab sensing unit. It is fastened to the negative tension bar by a shock absorbing part having a shock absorbing spring absorbing the shock generated when the cast is introduced and the driving force that can be lowered by the piston rod which can be adjusted by tension adjustment downward to the impact buffer. Provided is an upright type switching roller which is prevented from abrasion and malfunction, characterized by comprising an air cylinder portion to be provided.

On the other hand, the present invention is the rod bracket and the adjustment screw rod is fastened so that the upper and lower adjustment of the detection position with the limit switch is coupled to the roller bracket and the operating lever is coupled to the roller detecting the rotation of the sensing roller rotatable and the It provides an upright type switching roller which is prevented from wear and malfunction, characterized in that it comprises a sensing guide provided with a tension bar,

In addition, the present invention is the shock-absorbing unit is fixed to the tension bar is fastened to the tension bar, and the wear and malfunction is characterized in that it comprises a spring housing and housing cap for fixing by inserting a buffer spring in the lower portion thereof Upright switching rollers,

The air cylinder according to the present invention is fixed to the lower part of the spring housing of the shock absorber and the piston rod is formed with a tension adjustment thread at the bottom, the piston is nut-coupled to the thread of the tension adjustment is possible, the coil spring is inserted into the lower portion And a cylinder tube having an air line installed at a side thereof while the piston is fixed to flow upward and downward, thereby providing an upright switching roller which is prevented from abrasion and malfunction.

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

Figure 3 is an exploded perspective view of the upright switching roller to prevent wear and malfunction according to the present invention, Figure 4 is a combined perspective view of the upright switching roller to prevent wear and malfunction according to the present invention, Figure 5 is a wear according to the present invention And a sectional view of an upright switching roller in which a malfunction is prevented.

The upright switching roller according to the present invention is largely composed of a slab sensing unit 10, an impact buffer 20, and an air cylinder 30.

The slab detection unit 10 is a roller bracket 12, which the sensing roller 11 is rotatably fastened, and an operating lever 13 contacting the sensing lever of the limit switch are coupled with a nut 13 'to limit the switch. The adjustment screw rod 14 is composed of a rod bracket 15 to which the nut 14 'is fastened and a guide 17 having a connecting tension bar 16 at the center thereof so as to enable the up and down adjustment of the detection position of the center. .

That is, while the detection roller 11 is fastened to the roller bracket 12 of the guide 17 so as to be rotatable by the roller fixing pin 18, the stopper 19 is fastened to the fixing bolt 19 ′ to prevent separation. ,                     

An adjustment rod 14 having a thread is formed on the rod bracket 15 of the guide 17, and the nut 14 ′ is fixed to upper and lower portions of the rod bracket 15, and the operating lever 13 is attached to the adjustment rod 14. ) Is inserted and then fixed with a nut 13 '. Therefore, it is possible to adjust the vertical position of the operation lever 13 in contact with the detection lever of the limit switch.

An impact buffer 20 is positioned below the slab sensing unit 10 configured as described above, and the tension bar is fixed to the thread 16 'formed on the tension bar 16 for connection of the slab sensing unit 10. A fixing nut (21) is provided, and a buffer spring (22) for imparting a cushioning force is positioned at a lower portion of the tension bar fixing nut (21), and the tension bar fixing nut (21) and the buffer spring (22) are fixed. While accommodating at the same time it is composed of a spring housing 23 and a spring housing cap 24 formed with a rod through hole 23 ′.

The lower portion of the shock absorber 20 configured as described above is located in the air cylinder unit 30 for imparting a driving force to lower the slab detection unit 10 and the impact buffer unit 20, the air cylinder unit ( 30 is a piston rod 31 having a tension adjusting thread 31 'formed at a lower portion thereof while being fastened to a lower portion of the spring housing 23 of the shock absorber 20, and a piston which is nut-coupled to a thread thereof to enable tension adjustment. The 32 and the coil spring 33 inserted into the lower portion thereof and the copper piston 32 are fixed to flow upward and downward, while the air line 34 is installed at the side, and the through hole 35 'of the piston rod is provided at the lower bottom thereof. It consists of a formed cylinder tube 35.

That is, fixing larger than the diameter of the rod through hole 23 'in the upper portion of the piston rod 31, the thread formed in the rod through hole 23' formed in the lower portion of the spring housing 23 of the impact buffer 20 The nut 25 is fastened to support the spring housing 23. After the fixing nut 25 is fastened, the cylinder cover 24 is inserted into the piston rod 31, and then the piston rod 31 is closed. The piston 32 in which the nut part 32 'is formed is fastened to the thread 31' formed in the lower part, and the height of the piston 32 is adjustable.

The piston rod 31 configured as described above is accommodated in the cylinder tube 35 for fixing the coil spring 33 is inserted into the lower portion of the rod, and then the cylinder cover 37 is fastened with a nut 37 '. It is fixed.

In addition, the outer circumferential surface of the piston 32 is inserted into the rubber sealing ring 38 in order to prevent the leakage of air can be moved downwards when the air supply is made, when the air discharge the inserted coil spring 33 The piston 32 is to move upward.

Each device portion of the switching roller according to the present invention having the configuration as described above is accommodated and fixed in the case 40 arranged in an upright manner, the case 40 is the upper end of the guide 17 of the slab detection unit 10 and A fixed flange 41 fixed in contact, a coupling flange 42 coupled to the fixed flange 41 and a nut 41 ', an operating lever 13 and an operating lever 13 of the slab sensing unit 10; 13 is provided with an oval through hole 43 protruding through the rod bracket 15 coupled thereto, and a cylinder tube of the air cylinder unit 30 at the bottom bottom of the case 40. The through hole 44 through which the piston rod 31 penetrates the lower through hole 35 'of the lower hole 35' and the mounting portion 36 of the cylinder tube 35 are fixed to the bolt 36 '. The nut sphere 45 is formed.

In addition, on one side of the elliptical through-hole 43 through which the rod bracket 15 of the case 40 protrudes, a scale plate 46 is formed in which the adjustment amount can be determined when the operating lever 13 is adjusted up and down. The piston rod 31 passing through the through hole 440 formed in the lower bottom portion of the case 40 is fixed by the fixing nut 47.

Hereinafter, the operation of the upright switching roller which prevents abrasion and malfunction according to the present invention configured as described above will be described in detail.

Figure 6 is a perspective view showing a state in which the upright switching roller to prevent wear and malfunction according to the present invention is mounted on the feed roller, Figure 7 is a view of the operation and circuit diagram of the upright switching roller to prevent wear and malfunction in accordance with the present invention It is a schematic diagram showing.

As shown in Figure 6, the upright type switching roller to prevent wear and malfunction in accordance with the present invention is installed in one section of the feed roller portion is to detect the slab (1) is introduced. The coupling between the upright type switching roller and the transfer roller unit according to the present invention includes a fastener and a frame part of the transfer roller unit formed on both sides of the coupling flange 41 and the fixed flange 42 formed on the case 40 of the switching roller. 4) is coupled to the nut to detect the inserted cast.

As shown in FIG. 7, when the sensing roller 11 protruding upward from the feed roller 2 is pressed by the introduced cast steel 1, the guide 17 connected to the roller bracket 12 is lowered. . Accordingly, the tension bar 16 formed integrally with the center portion is lowered, and the shock springs 22 provided at the lower portion of the tension bar 17 are absorbed by the shock bar and the vibration generated therein.

At this time, the signal detected by the lever 5 'of the limit switch 5 pressed by the operating lever 13 is geared by the control unit 50 connected thereto and the geared motor 51 of the feed roller 2. When the motor rotates, the sprocket gear 52 rotates and the chain 53 rotates so that the feed rollers 2 of one section connected to the chain 53 rotate at the same time. The feed roller unit is driven.

At the same time, as the air solenoid valve 54 is opened to the air cylinder 35 embedded in the lower portion of the switching roller, air is supplied to the piston 32 to move downward, thereby pulling the piston rod 31 downward.

Therefore, the tension bar 16 of the slab sensing unit 10 which was lowered by the weight of the slab is pulled downward, and as a result, the sensing roller 11 is lowered downward so as not to come into contact with the slab. The life of the sensing roller can be extended by preventing wear due to contact with the product.

After that, when the cast is completed, the sensing roller 11 returns to the upper position, and the operating lever 13 of the slab sensing unit 10 is raised to release the signal of the limit switch 5, and when the signal is released, the sensing signal. The air solenoid valve 54 is closed by the signal of the control unit 50 connected to the air and the air is not supplied, but the air in the cylinder 35 is exhausted, and the piston 32 returns the force of the return coil spring 33. When the upward rise by the piston rod 31 and the spring housing 23 connected to the piston 32, the tension bar 16 of the slab detection unit 10 is pushed up, and eventually the detection roller 11 is raised to the top. It will return to the ready state to detect the incoming of the next cast.

Detecting the entry of the cast roller portion using the upright switching roller to prevent wear and malfunction according to the present invention to absorb the impact and fluctuations generated during the introduction of the cast member to prevent the malfunction of the switching roller and at the same time the detection roller The downward movement of the roller does not come into contact with the cast steel, thereby preventing wear due to contact with the cast steel, thereby extending the life of the sensing roller.

Claims (4)

In the switching roller used to control the feed roller for conveying the cast steel, The sensing roller 11 in contact with the cast steel when the cast steel is drawn in, the roller bracket 12 in which the sensing roller 11 is rotatably fastened, and the operating lever 13 in contact with the sensing lever of the limit switch are nuts 13 '. ) Is installed under the rod bracket 15 and the roller bracket 12 to which the adjusting screw rod 14 is fastened to the nut 14 'so that the detection position with the limit switch can be adjusted upward and downward. Cast slab detecting portion 10 consisting of a guide 17 having a tension bar 16 , An impact buffer unit 20 coupled to the tension bar 16 of the slab sensing unit 10 and having a shock absorbing spring 22 absorbing the shock generated when the slab is retracted; It is composed of an air cylinder portion 30 which is fastened by the piston rod 31 which can be adjusted in the downward direction of the impact buffer 20 to impart a driving force to lower the slab detection unit 10 downward. Upright switching roller that is characterized by wear and malfunction prevention. delete The method of claim 1, The shock absorber 20 includes a housing cap 24 into which the tension bar 16 of the slab sensing unit 10 is inserted and a tension bar fixing nut 21 fastened to a lower end of the tension bar 16; The spring housing 23 is secured by the housing cap 24 by the tension bar fixing nut 21 and the buffer spring 22 supported by the lower surface of the tension bar fixing nut 21. Upright type switching rollers, characterized in that configured to include wear and malfunction. The method of claim 1, The air cylinder portion 30 is fixed to the lower portion of the spring housing 23 of the impact buffer 20, the piston rod 31 is formed with a tension adjustment thread in the lower portion, and the nut is coupled to the thread of the tension adjustment is possible The piston 32, the coil spring 33 is inserted into the lower portion thereof and the piston 32 is fixed to flow up and down while the air line 34 is installed on the side, characterized in that it comprises a cylinder tube 35 Upright switching roller to prevent wear and malfunction.

Images