KR20020044238A - Apparatus for supplying grits to dull machine - Google Patents

Abstract

PURPOSE: A grit inputting feeding apparatus is provided to prevent the feeding error of the grits caused by waste grits by always storing a predetermined amount of grits in a storage tank. CONSTITUTION: A discriminator(20) is provided to classify the grits(10) into a small diameter grit, a middle diameter grit, and a large diameter grit. The classified grits are stored in a main storage tank. An injector(40) is provided to inject the grit(10) from the main storage tank into a surface of rolling roll seated on a rotating roll(42) in a case(46) of a dull machine. A grit feeding machine(1) feeds the grits(10) into the dull machine. The grit feeding machine(1) includes a main hopper(60), multi-step storage tanks and a discharging device. The main hopper(60) is positioned at one side of an elevator(50) for feeding the grits(10) into the discriminator(20).

Description

Grit's Darm Machine Feeder {APPARATUS FOR SUPPLYING GRITS TO DULL MACHINE}

The present invention relates to a darling machine for roughening the surface of the workpiece, and more particularly, by injecting grit into the darling machine used for the surface roughening of the workpiece, such as a cold rolling roll, by smoothly introducing the grit by its size. A month of grit that automatically replenishes the appropriate grit so that the grit sprayed at high pressure to process the surface rolling such as rolling rolls is always put in the appropriate amount into the storage tank to prevent the supply failure caused by the discarded grit. A machine input device.

In general, to form a workpiece, that is, after forming a steel sheet in a cold rolling line, to smoothly coat the surface and produce a product having excellent paintability, it is necessary to roughen the surface of the roll used for cold rolling. An apparatus for processing the surface roughness of such a workpiece is called a DULL MACHINE.

In addition, the grit (GRIT) is essentially used in the surface roughness processing of the workpiece, such a grit has a variety of sizes as a fine grain of steel material. In most cold rolling mills, the size is divided into three stages: large diameter, medium diameter, and small diameter.

On the other hand, FIG. 1 shows the entire equipment for introducing a conventional grit into a dart machine.

That is, as shown in Figure 1, the grit 101 received by the size as a crane 100 is strictly separated by the size in the sorting machine 108 for sorting operation, the separated grit 101 is stored by size For storage tanks 109, 110, and 111, which are manufactured and installed in the facility, are separated and stored in a large diameter, a medium diameter, a small diameter, etc. After the size of the grit 101 is selected according to the characteristics of the rolling roll 113, the grit 101 is sprayed at a high speed on the surface of the rolling roll 113 as an injector 112 of a darling machine rotating at a high speed. It is to process the surface roughness.

On the other hand, as shown in Figure 2 when looking at the conventional grit input operation for the grit processing as described above, the operator frequently stores the consumption of the grit 101 used for roughening the surface of the rolling roll 113 Check the inside of (109) (110) and (111), and when the grit (101) falls below an appropriate level, the medal (refilled) using the crane (100) is replenished from the upper part of the movable hole (102). The lower surface grit 101 is moved down to the distribution plate 106 through the pipe 104, and moves to the distribution screw 107, which is the next work process, through the elevator 105 from the bottom thereof.

That is, in the related art, the operator keeps a certain amount of the grit 101 in the inside of the moving hole 102 having an inclination to inject the grit 101, and uses the blocking plate 103 installed on the upper part of the pipe 104. The forward and backward operations are repeatedly performed to reduce the load on the elevator 105.

However, as shown in FIG. 2, the operator 105 concentrates and supplies only the grit 101 in a state in which a worker is misworked or tired and the barrier plate 103 is completely open, thereby causing the elevator 105 to be overloaded due to the overload of the grit 101. Equipment failure frequently fails to function properly, overflows from the distribution plate 106 installed in the lower portion, there is a problem that a considerable amount of time must be put into handling the grout 101 is accumulated on the floor.

In addition, the storage amount of each grit 101 of the large diameter, the medium diameter, and the small diameter stored in each of the sizes of the grit 101 supplied as the elevator 105, that is, in the three grit storage tanks 109-111 is constant. Since it is impossible to do so, the sorter 108 which performs the sorting operation is severely overloaded, and in particular, the screen (not shown) installed inside the sorter 108 is frequently broken, and thus it is not precisely sorted. If processing, the surface roughness of the cold rolling roll 113 is a problem that the variation in the degree of processing is severe.

In addition, the grit 101 is performed while roughening the surface of the cold rolled roll 113 without grasping the amount of the grit 101 in the tanks 1090 (110) and 111 for storing the grit 101 on which the sorting operation is completed. The lack of) is easily generated, and in this case, the surface roughness of the rolling roll 113 itself becomes poor, and the cumbersome and additional work of moving the rolling roll 113 to the grinding machine and regrinding occurs, There were several problems, such as the lack of timely roll supply to the rolling line, which could cause the cold rolling line to shut down.

The present invention has been made in order to solve the various problems of the prior art as described above, the object of which is to make a proper grit by making the grit more smoothly by the size of the grit machine used in the surface roughness processing of cold rolling rolls As a result, the present invention provides a grit-drilling machine for carrying out surface roughening such as a rolling roll, and grit is always stored in an appropriate amount in a storage tank so as to prevent supply failure due to discarded grit.

1 is a general configuration diagram showing a typical grit moon machine input device

Figure 2 is a perspective view of the main portion of Figure 1 'A' showing a conventional grit inserting device

Figure 3 is an overall configuration diagram showing a grit Dalmyeon input device according to the present invention

Figure 4 is a perspective view of the grit injector of the inventor grit

Figure 5 (a) and (b) is a schematic plan view and main perspective view showing a screw installed in the grit dalmending machine of the present invention

Figure 6 (a) and (b) is a side structural view and perspective view showing the grit storage tank and the opening, closing plate installed in the grit dalmin input device of the present invention

Explanation of symbols on the main parts of the drawings

1 .... Grit Feeder 20 .... Separator

22 .. Distribution screw 30 .. Main storage tank

40 .... The Sandblast 46 ... The Dazzle Case

50 .... Elevator 60 .... Main Hopper

62 .... sorting network 70 ... sorting storage tank

72 .... drive motor 76 ... screw

80 .... Grit ejection means 82 .... Opening and closing

86 .... Adjustment cylinder 90 .... Level detector

92 .... gate 94 .... working cylinder

In the technical configuration for achieving the above object, the present invention, in the device for injecting a grinder for spraying the surface roughness of the workpiece to be sprayed as an injector of the darling machine through the sorter and the main storage tank, A main hopper installed to one side of an elevator for introducing grit into the sorter;

A multi-stage storage tank installed to selectively store large and medium-sized grit inside the hopper;

By providing a grit Dalmyeon input device consisting of a grit discharge means is installed to adjust the discharge of the grit in the lower portion of the storage tank.

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

Figure 3 is an overall configuration showing the grit of the dart machine input device according to the invention, Figure 4 is a perspective view showing the grit of the grit of the present invention, Figures 5 (a) and (b) Fig. 6 is a schematic plan view and a main perspective view of a screw installed in the grit of the grit of the inventor of the grit, and Figs. 6 (a) and (b) show the grit storage tank, opening and closing plate of the grit of the grit of the grit of the present invention. One side structure diagram and a perspective view.

First, the grit process for surface roughness of the workpiece through the Dharma machine (D) is a sorter 20 for separating the grit 10 into a large diameter, a medium diameter, and a small diameter, and a main storage tank for storing the selected grit, respectively. 30) and the grit 10 supplied from the main storage tank 30, the surface of the work to be seated on the rotary roll 42 in the case (D) case 46, that is, the surface of the rolling roll (R) And an injector 40 to spray at high speed.

Next, FIG. 3 and FIG. 4 show the grit dalmin input device 1 of the present invention for injecting the grit 10 supplied from the outside to the sorter 20 in the grit injection process, this example The apparatus 1 of the present invention can be largely divided into the main hopper 60, the multi-stage storage tanks 70a and 70b, and the discharge means 80.

That is, as shown in Figures 3 and 4, the main hopper 60 is installed to one side of the elevator 50 for injecting the grit into the sorter 20, the storage tank 70 is the hopper Large and medium-sized grit (10a) and (10b) is installed to the inside of the (60), and the discharge means (80) to adjust the discharge of the grit (10) in the lower portion of the storage tank (70). Installed in detail, each of these configurations are as follows.

4 and 6 show the main hopper 60, and the upper part of the main hopper 60 is equipped with a sorting network 62a and 62b for selecting the grit 10 by medium and medium diameters, respectively.

4 and 5, the storage tanks 70a and 70b for selectively storing the large and medium diameter grit 10a and 10b are provided with a drive motor installed outside the hopper 60. 72, each screw 76 is provided in the storage tank so as to be integrally driven on the worm shaft 74b, which is driven as a worm wheel 74a.

In addition, as shown in Figure 4 and 6, the grit discharge means 80 is installed in the lower portion of the storage tank 70 to adjust the discharge of the grit 10, the lower end of the storage tank 70 An end portion of the rod 86a is connected to the opening and closing plate 82 mounted on the pivot 82a and the connection block 84 installed on the opening and closing plate 82, and is installed outside the hopper 60 to discharge grit discharge. The adjustment cylinder 86 to adjust is provided.

The adjustment cylinder 86 is connected to upper and lower level sensors 90a and 90b respectively installed at upper and lower sides of the storage tanks 70a and 70b, respectively, through a control unit. The input amount of the separator 20 of the large and medium diameter grit 10a and 10b stored in the control cylinder 86 is configured to be adjusted as the adjustment cylinder 86, and the adjustment cylinder 86 performs a continuous double-acting motion to discharge the grit tank. It is composed.

In addition, a gate 92 is inserted into each of the storage tanks 70a and 70b for storing the large and medium diameter grit 10a and 10b on the outer side of the main hopper 60 to block the input of the grit 10. ) Is connected to the operation cylinder 94 is made of a configuration that is additionally installed horizontally.

Referring to the operation and effects of the present invention made in the above configuration in more detail as follows.

3 to 6, the grit 10 used to roughen the surface of the rolling roll (R) used in the cold rolling mill has two types of large diameter and medium diameter (10a) at the time of initial (new) wearing. ), Which is worn as a large diameter grit (10a) is composed of a large grit (L) of 80% and a medium grit (M) of 20%, the medium grit (10b) is a medium grit (M) ) Is composed of 60% and small grit (S) of 40%, respectively, the large- and medium-sized grit (10a) (10b) described above are actually large, medium and twenty grit separated through the separator 20 (L) (M) (S) is included in a certain ratio, and for the sake of understanding, reference numeral 10 denotes large and medium diameters, and symbols L, M, and S denote large, medium, and small grit, respectively.

However, the reason for this configuration is that the production of grit 10 with perfect size increases the amount of grit 10 discarded and the cost is high, resulting in a decrease in productivity. Thus, the moon machine (D) installed in a cold rolling mill has two types of grit ( 10) is used to sort the roughness of the rolling roll (R) to be processed while matching the roughness of the product desired by the sorter in the sorting machine (20) that sorts by size using The grit 10 is continuously circulated and reused.

On the other hand, as described above, when the grit is actually put into the injector 40 of the Dharma machine (D), depending on the processing roughness is input into large (L), medium (M) and small (S), but when the initial Since only the large diameter and medium diameter is in stock, the operation of the present invention for putting grit into the sorter 20 will be described by dividing the grid of large, medium and small.

First, when the large grit L is introduced, the rolling roll R, which is moved to the inside of the darling machine by moving the trolley 44 of the darling machine D, is rotated as a roller 42 through the injector 40. When roughness processing is carried out as a large grit (L) spraying at a high pressure, the grit (L) stored in the inside of the main storage large tank (30a) that stores the large grit moves to the bottom and consumes a large amount of the large tank (L). It is sensed by the level detector 96a installed inside 30a).

When the grit level detected by the level detector is 50% or less, the motor to which the screw bar 76 of the storage tank 70a introduced through the main hopper 60 sorting network 62a of the input device 1 of the present invention is connected is connected. (72) While driving the worm 74 is driven to drive the lumps of large diameter grit (10a) stored in the storage tank (70a) evenly to make a single piece.

At this time, when the cylinder 94 connected to the gate 92 through the storage tank 70a is operated, when the large diameter grit 10a in the storage tank 70a moves to the lower part of the tank, the lower portion of the storage tank 70a If the opening and closing plate 82 of the pivot discharging means 80 is repeatedly moved forward and backward by the adjustment cylinder 86, when the grit 10a forms a layer and discharges a certain amount to the bottom of the main hopper 60. Injected into the elevator 50 is put into the dispensing screw 22 of the sorter 20, the repetitive double-acting operation of the cylinder does not discharge the grease (10a) at once to reduce the operating load of the elevator (50) will be.

Therefore, while reducing the load of the elevator 105, it is possible to maximize the grit sorting operation in the next sorting machine 20, the important thing here is the repetition of the opening and closing plate 82 by the cylinder 86 as described above When the opening and closing operation is performed at intervals of 5 seconds and performed for about 2 minutes, the input amount of the grit 10a is maintained at approximately 25 kg, which is an amount suitable for processing about 2 copies of the cold rolled roll R.

Next, when the gate 92 is operated in reverse and the movement of the grit 10a is blocked, the driving of the motor 72 is stopped to stop the discharge operation, and a predetermined amount of the grit 10a is injected into the elevator 50 and the distribution screw. Through the 22 and the separator 20, the large tank 30a and the medium tank 30b are replenished with large and medium grits L and M, respectively, as described above.

At this time, only when the level sensor 96a installed inside the large tank 30a detects the grit at 80% or more, the roughness of the rolling roll R is processed, and the amount detected by the level sensor 96a is 80. If less than% is to continuously carry out the injection operation of the inventors grit.

Next, look at the input of the medium grit (M), check the amount of grit (M) of the medium tank (30b) with a level gauge (96b) when there is more than 50% and less than 80% is carried out as a large grit (L) To compensate for the lack of grit (M), the medium grit (M) is 20% and 60% contained in the large diameter and medium diameter grit (10a) (10b) to be received, respectively, so a small amount of medium at the time of large diameter grit In the case where the grit is added and the medium-sized grit is added, a large amount of medium grit can be added.

Therefore, since the storage amount is larger than the large, the total input amount is at least large, and when the level detected by the level detector is 50% or less, the sorting operation of the grit may be performed in the same manner as described above, and the medium tank 30b may be When the amount of sensing grease M by the level gauge 96b becomes 80% or more, the operation ends.

Next, in the case of the small grit S, when the amount of grit by the grit level sensor 96c of the small tank 30c is 50% or less, similar to the medium, the amount of grit is 50% or less, similarly to the input of the medium grit M. Supplement the grit (S), and the work ends when 80% or more.

As described above, according to the grit of the grit of the present invention, a predetermined amount is added to the elevator several times while grasping and replenishing the remaining amount of the tank for storing the grit used for the surface roughness processing of the rolling roll. The load of the sorting machine is reduced, so that the quick grit sorting operation can be performed, and in particular, a constant grit storage state is always maintained, thereby having an excellent effect of smoothly performing the processing of the entire workpiece.

While the invention has been shown and described with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit or scope of the invention as set forth in the claims below. I would like to know that those who have knowledge of this can easily know.

Claims (5)

Apparatus for injecting the grit 10 into the sorter 20, which is sprayed as the injector 40 of the darling machine D through the sorter 20 and the main storage tank 30 to process the surface roughness of the workpiece ( In 1), A main hopper 60 installed at one side of the elevator 50 for injecting grit into the sorter 20; and A multi-stage storage tank (70) installed to selectively store large-sized grit (10a) (10b) inside the hopper (60); and, Grit Dalmyeon input device, characterized in that consisting of the grit discharge means 80 is installed to adjust the discharge of the grit 10 in the lower portion of the storage tank (70) The top of the hopper 60 is equipped with a sorting net (62a, 62b) for sorting the grit (10) with a large diameter, respectively, and the large, medium diameter grit (10a) (10b) The storage tanks 70a and 70b for selective storage are integrally driven on the worm shaft 74b which is driven as a worm wheel 74a which is installed to be driven as a drive motor 72 provided outside the hopper 60 inside thereof. Grit Dalmuck input device, characterized in that each provided with a screw 76 installed in the storage tank The method according to claim 1, wherein the grit discharge means 80 is installed in the lower portion of the storage tank 70 to adjust the discharge of the grit 10, An opening and closing plate 82 mounted with a pivot 82a at a lower end of the storage tank 70; An end portion of the rod 86a is connected to the connection block 84 installed at the opening and closing plate 82, and an adjustment cylinder 86 is installed outside the hopper 60 to adjust grit discharge amount. Grit's Darm Machine Feeder The storage cylinder of claim 3, wherein the adjustment cylinder 86 is connected to upper and lower level sensors 90a and 90b respectively installed on the upper and lower sides of the storage tanks 70a and 70b through a control unit. The input amount of the separator 20 of the large and medium diameter grit 10a, 10b stored in the tank 70 is configured to be adjusted as the adjustment cylinder 86, and the adjustment cylinder 86 performs a continuous double-acting motion to generate the grit. Grit Dalmyeon input device, characterized in that the tank discharge According to claim 1, Outside the main hopper 60 is inserted into each of the storage tanks (70a, 70b) for storing the large, medium diameter grit (10a, 10b) to block the input of the grit (10) Grit's darling machine input device, characterized in that the operation cylinder 94 to which the gate 92 is connected is further installed horizontally