KR20170085249A - Surface processing apparatus - Google Patents

Surface processing apparatus Download PDF

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Publication number
KR20170085249A
KR20170085249A KR1020160004634A KR20160004634A KR20170085249A KR 20170085249 A KR20170085249 A KR 20170085249A KR 1020160004634 A KR1020160004634 A KR 1020160004634A KR 20160004634 A KR20160004634 A KR 20160004634A KR 20170085249 A KR20170085249 A KR 20170085249A
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KR
South Korea
Prior art keywords
ball
shot
blaster
hopper
size
Prior art date
Application number
KR1020160004634A
Other languages
Korean (ko)
Other versions
KR101818321B1 (en
Inventor
이헌욱
황진동
이명규
Original Assignee
현대제철 주식회사
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Priority to KR1020160004634A priority Critical patent/KR101818321B1/en
Publication of KR20170085249A publication Critical patent/KR20170085249A/en
Application granted granted Critical
Publication of KR101818321B1 publication Critical patent/KR101818321B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/08—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces
    • B24C3/10—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces for treating external surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C11/00—Selection of abrasive materials or additives for abrasive blasts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/18—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions
    • B24C3/26—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions the work being supported by barrel cages, i.e. tumblers; Gimbal mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
    • B24C7/0053—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
    • B24C9/006—Treatment of used abrasive material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

An invention relating to a surface machining apparatus is disclosed. A surface machining apparatus of the present invention is characterized by comprising: a cradle on which an object to be machined is placed; a shot blaster for spraying a shot ball onto the object to be machined and for machining the surface of the object; and a shot ball ejected from the shot blaster, And a ball feeder for feeding the short balls collected by the ball collecting apparatus to the shot blaster by classifying the short balls by size.

Description

[0001] SURFACE PROCESSING APPARATUS [0002]

The present invention relates to a surface machining apparatus, and more particularly, to a surface machining apparatus for machining a surface of an object to be machined.

Generally, in order to secure the toughness of the cold-rolled steel sheet, the internal stress is removed by annealing, and then a light cold-rolling process is carried out to finely grain the grain. The surface roughness (surface roughness) necessary for a roll used in a skin pass mill is secured through secondary processing such as shot blasting after grinding.

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Registration No. 2004-0096471 (published on November 16, 2004, entitled "Roll Surface Processing Method").

According to an embodiment of the present invention, there is provided a surface machining apparatus capable of machining an object to be processed to a desired surface roughness.

A surface machining apparatus according to the present invention comprises: a mount on which a workpiece is mounted; A shot blaster for spraying a shot ball onto the object to be processed and processing the surface of the object to be processed; A ball collecting device for collecting the shot ball dropped and dropped from the shot blaster; And a ball dispensing apparatus for sorting the shot balls collected in the ball collecting apparatus into sizes and supplying the shot balls to the shot blaster.

In addition, the cradle may include a moving carriage on which the object to be processed is mounted and moved in a horizontal direction; A roll seat mounted on the moving carriage, on which the object to be processed is mounted, for supporting the object in a rotatable manner; And a guide rail for guiding the movement of the moving carriage.

Further, the present invention further includes a housing for accommodating the cradle and the object to be processed, and forming a box-shaped space portion capable of restraining leakage of the shot ball ejected from the shot blaster, wherein the guide rail includes: It is preferable that it is formed to extend inside and outside.

The shot blaster may further include: a hopper for ball water in which the shot ball is received and accommodated from the ball supply device; A ball injecting device disposed below the hopper for ball water for injecting the shot ball into the roll by rotation of the impeller or air pressure; And a ball supply path connecting the ball-catching means and the ball dispensing device in a communicative manner and forming a path through which the shot ball is moved downward by its own weight.

The shot blaster may further include: a ball measurement device for measuring an amount of the shot ball received in the ball water hopper; An on-off valve installed in the ball supply passage for opening and closing the ball supply passage; And a control unit for controlling the on-off valve according to a value measured by the ball-measuring apparatus.

In addition, the ball-measuring device measures the height of the top surface of the shot ball received in the ball-hopper hopper, and when the height of the top surface of the shot ball measured by the ball- It is preferable that the supply path is opened and the ball supply path is closed when the height of the shot ball measured by the ball measurement device is less than a set value.

The ball collecting apparatus may further include: a recovery hopper disposed below the cradle, through which the shot ball injected or dropped from the shot blaster flows; And a recovery conveyor configured to extend from the recovery hopper to the ball supply device and supply the short ball introduced into the recovery hopper to the ball supply device.

The ball supply device may further include a ball storage tank for receiving and receiving the shot ball from the ball collection device or another shot ball tank; A sorting screen device for sorting the shot balls discharged from the ball storage tank by size; A first ball supply tank through which the shot ball of the first size classified by the sorting screen device is introduced and accommodated, and discharges the shot ball of the first size to the shot blaster; And a second ball supply tank for introducing and receiving the shot ball of the second size sorted by the sorting screen device and discharging the shot ball of the second size to the shot blaster.

According to the surface machining apparatus of the present invention, a shot ball of a predetermined size can be jetted at a set flow rate using a shot blaster, the surface of the object can be processed to a desired surface roughness, the shot ball can be recovered by the ball recovery device, The shot blasting process can be successively performed using a shot ball of a predetermined amount by supplying the shot blaster by sorting by size using a ball feeder.

Further, according to the present invention, when the height of the top surface of the shot ball measured by the ball-measuring device is equal to or greater than the set value, the on-off valve is opened. When the height is less than the set value, The flow rate of the shot ball injected into the object to be processed can be kept constant, and thus the shot blasting can be uniformly performed over the entire surface of the object with the desired surface roughness.

1 is a conceptual diagram schematically showing a front surface processing apparatus according to an embodiment of the present invention from the front.
Fig. 2 is a conceptual view of a principal part schematically showing a side surface machining apparatus according to an embodiment of the present invention. Fig.
3 is a perspective view schematically showing a shot blaster of a surface finishing apparatus according to an embodiment of the present invention.

Hereinafter, an embodiment of a surface machining apparatus according to the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a conceptual diagram schematically showing a front surface machining apparatus according to an embodiment of the present invention from the front, FIG. 2 is a conceptual diagram showing a principal part schematically showing a surface machining apparatus according to an embodiment of the present invention, 3 is a perspective view schematically showing a shot blaster of a surface finishing apparatus according to an embodiment of the present invention.

1 and 2, a surface processing apparatus 1 according to an embodiment of the present invention includes a cradle 10, a shot blaster 20, a ball collecting device 30, a ball feeder 40, (50).

The holder 10 has a shape capable of placing and mounting the object 2 on its upper portion. The shot blaster 20 is disposed on the upper side of the mount table 10 and the upper portion of the object 2 is exposed to the air toward the shot blaster 20 while the object 2 is placed on the mount 10 .

The shot blaster 20 is used to spray the short ball 3 onto the object 2 placed on the table 10 and more specifically to the upper part of the object 2 not interfering with the table 10, The surface of the object 2 is polished or worked, or the impurities on the surface of the object 2 are shaved off. The surface of the object 2 is processed into a set surface roughness while colliding with a plurality of shot balls 3 having a set size which is set at a set speed in the shot blaster 20. [

The shot ball 3 ejected from the shot blaster 20 is scattered in an arbitrary direction after colliding with the object 2 and falls to the bottom of the housing 50 by gravity. The ball collecting device 30 is installed at a lower portion of the housing 50 to extend toward the ball feeder 40 located at the upper portion of the housing 50 and is connected to the short ball 3 And supplies it to the ball supply device 40. [

The ball supply device 40 divides the shot balls 3 collected by the ball collecting device 30 into sizes and supplies them to the shot blaster 20. The shot ball 3 is reused a plurality of times and repeatedly collided with the object 2 to be partially shaved and gradually reduced in size so that the size of the shot ball 3 is reduced by the degree of collision, There is also a difference.

The ball supply device 40 divides the shot ball 3 into sizes and supplies the shot ball 3 of the set size range to the shot blaster 20 or the shot ball 3 of different sizes at a set ratio And the mixture is supplied to the shot blaster 20. This makes it possible to prevent unevenness in the surface roughness of the object 2 due to the size difference of the shot ball 3.

The housing 50 forms a box-like space portion capable of restraining the leakage of the shot ball 3 injected from the shot blaster 20. [ The housing 50 according to an embodiment of the present invention has a size capable of accommodating the cradle 10 and the object 2 to be processed. The upper portion of the housing 50 may be open toward the shot blaster 20 or may be connected to the shot blaster 20 in a communicative manner.

The shot ball 3 injected from the shot blaster 20 collides with the object to be processed 2 placed inside the housing 50 and then is scattered in an arbitrary direction and falls to the lower side of the cradle 10, (50) is prevented from being leaked to the outside of the housing (50) in a process of being scattered after being collided with the housing (2).

The total amount of the shot ball 3 injected from the shot blaster 20 is present only on a limited space portion corresponding to the inside of the housing 50 and finally falls and seats on the bottom of the housing 50. [ Therefore, it is possible to prevent the risk of accidents or equipment damage caused by the short ball 3 jumping out to the operator or other nearby equipment. In addition, it is possible to prevent the short ball 3 from being lost, and the whole amount of the shot ball 3 can be easily recovered and collected without loss using the ball recovery device 30 provided at the lower portion of the housing 50.

The housing 50 according to an embodiment of the present invention has a rectangular box shape, but the housing 50 according to the present invention is not limited thereto. The housing 50 according to the present invention is not limited to a particular structure and shape as long as it has a structure capable of restraining the leakage of the shot ball 3.

Referring to FIG. 1, a cradle 10 according to an embodiment of the present invention includes a moving carriage 11, a roll seat 12, and a guide rail 13.

The moving carriage 11 has a structure capable of horizontally moving along the guide rail 13 with the object 2 mounted thereon. The moving carriage 11 includes a pedestal to which the roll seating base 12 can be mounted and a plurality of wheel members for movably supporting the pedestal. The wheel members provided on the moving truck 11 are moved along the guide rails 13 while being rotated in the state of being engaged with the guide rails 13 so that the moving truck 11, the roll seating table 12, 2) are moved together with the same displacement.

The roll seat 12 is a device for rotatably supporting the object 2 and has a shape corresponding to the lower portion of the object 2 so that the object 2 can be seated, As shown in Fig. 2, the object to be processed 2 according to an embodiment of the present invention has a roller shape, and the upper part of the roll seating table 12 on which the object 2 is placed is a concave arc corresponding to the lower portion of the roll. Shape.

The roll seat 12 according to an embodiment of the present invention includes a plurality of roller members arranged in a shape corresponding to the lower portion of the object 2 to be processed. The object to be processed 2 is rotated at a predetermined position interlocked with the rotation of the roller member in a state of being placed on top of a plurality of roller members. When the roller 2 is rotationally driven clockwise by rotating the roller member in the counterclockwise direction using a motor, the object 2 to be seated on the roller 2 is rotated clockwise, Direction.

The object 2 is moved in the axial direction while moving the moving carriage 11 along the guide rails 13 extending in the axial direction of the object 2 in the case where the object 2 has a roller shape, And the object to be processed 2 can be rotated about the axis in the positive direction by rotating the roller member provided on the roll seating base 12. [ Further, the linear moving speed of the object 2 can be adjusted by adjusting the running speed of the moving truck 11, and the rotational speed of the object 2 can be adjusted by adjusting the rotational speed of the roller member have.

While the short blast 20 is fixed at the set position and the object 2 is linearly moved and rotated at the set speed by using the moving carriage 11 and the roll seat 12 as described above, The shot blasting using the shot ball 3 can be applied over the entire surface of the substrate.

The guide rail (13) has a rail structure for guiding the movement of the moving carriage (11). The guide rail 13 according to an embodiment of the present invention is formed to extend to the inside and the outside of the housing 50. This makes it possible to easily mount the object 2 to the moving carriage 11 from the outside of the housing 50 without interference with the housing 50 and to move the moving carriage 11 to the inside of the housing 50 The object to be processed 2 can be easily arranged at the setting position inside the housing 50. [

3, the shot blaster 20 according to one embodiment of the present invention includes a hopper for ball water 21, a ball injector 22, a ball feed path 23, a ball measurement device 24, (25), a control unit (26), and a sensor mounting table (27).

The ball hopper 21 is a device part from which the ball 3 is drawn and received from the ball feeder 40. The hopper 21 for ball water has a narrowed width toward the lower side and an upper opened shape. The upper part of the hopper 21 for ball water is supplied from the first ball supply tank 44, the second ball supply tank 45 and the third ball supply tank 46 provided in the ball supply device 40 to the short ball 3, The first ball supply tank 44, the second ball supply tank 45, and the third ball supply tank 46 so that the first ball supply tank 45 and the third ball supply tank 46 can be smoothly supplied. The shot ball 3 introduced into the hopper 21 for ball water flows to the lower portion of the ball hopper 21 by its own weight.

The ball dispensing device 22 is disposed below the ball hopper 21 and ejects the shot ball 3 to the object 2 by rotation of the impeller 221 or high pressure air pressure. The configuration of the ball dispensing apparatus 22 is well known in the art, and a detailed description thereof will be omitted. The ball feed path 23 is a portion forming a passage through which the shot ball 3 can flow, and connects the lower portion of the ball hopper 21 and the ball ejector 22 in a communicative manner. The shot ball 3 inside the hopper 21 for ball water flows into the ball feeder 23 by its own weight and flows downward through the ball feeder 23 and into the ball injector 22.

The ball measuring device 24 measures the amount of the shot ball 3 accommodated in the ball hopper 21. The ball measurement device 24 according to the embodiment of the present invention is provided with a shot ball 3 accommodated in the ball hopper 21 at a position corresponding to the ball water hopper 21 not interfering with the ball supply device 40, (Water level) of the upper surface portion of the tank. The ball measurement device 24 may be fixedly mounted on the sensor mount 27, including a non-contact type sensor such as a laser distance sensor.

The on / off valve 25 is provided on the ball supply path 23 so as to open and close the ball supply path 23. The control unit 26 controls the on-off valve 25 in accordance with the value measured by the ball-amount measuring device 24. The control unit 26 according to the embodiment of the present invention opens the ball supply path 23 when the height of the top surface of the shot ball 3 measured by the ball measurement device 24 is equal to or greater than the set value, ), The ball supply path 23 is closed if the height of the shot ball 3 measured by the ball 3 is less than the set value.

Thus, when the shot ball 3 of less than the set value is received in the ball hopper 21, the time required for the shot ball 3 in the ball hopper 21 to be supplied to the ball injector 22 So that the flow rate of the shot ball 3 can not be uniformly maintained during the set time. If the flow rate of the shot ball 3 is varied and can not be uniformly changed in the shot blasting of the entire surface of the object 2 during the time exceeding the set time, It is difficult to process with a surface roughness.

When the height of the top surface of the shot ball 3 measured by the ball measurement device 24 is equal to or larger than the set value, the open / close valve 25 is opened to supply the shot ball 3 to the ball dispensing device 22 The entire surface of the object 2 can be processed with a uniform surface roughness.

When the height of the upper surface of the shot ball 3 measured by the ball measurement device 24 is less than the set value, the supply of the shot ball 3 to the ball injection device 22 side is completed by closing the on- The short blasting process of the object 2 can be stopped. At this time, it is preferable that the control unit 26 performs control for stopping the linear movement and rotation of the cradle 10 together.

Thereafter, when the height of the top surface of the shot ball 3 measured by the ball measurement device 24 becomes equal to or larger than the set value, the open ball valve 25 is opened again to move the shot ball 3 to the ball dispensing device 22 by the set flow rate. The shot blasting process can be continuously performed on the surface of the object 2 to be processed. Through this process, the shot ball 3 ejected from the shot blaster 20 to the object 2 keeps the predetermined flow rate constant, and accordingly, the target surface roughness Short blasting can be performed.

The sensor mounting table 27 is a structure for supporting the ball measurement device 24 so that the ball measurement device 24 can be disposed above the ball hopper 21. [ The sensor mount 27 according to the embodiment of the present invention is installed to extend upward from the bowl hopper 21 while avoiding interference with the ball feeder 40 in the casing constituting the outer surface of the ball injector 22 , And the ball measurement device 24 is fixed to the upper part of the sensor mount 27.

Referring to FIGS. 1 and 2, a ball collecting apparatus 30 according to an embodiment of the present invention includes a collecting hopper 31 and a collecting conveyor 32.

The recovery hopper 31 is disposed at the lower portion of the housing 50 so that the shot ball 3 injected from the shot blaster 20 can be introduced. The recovery hopper 31 is disposed at a position where the shot ball 3 dropped at an arbitrary position on the bottom of the housing 50 can be easily introduced while being rolled by its own weight or pushed by another apparatus. The recovery hopper 31 itself may be installed to form the bottom of the inclined housing 50 and may be disposed below the outlet of the shot ball formed in the lower portion of the housing 50 with a hopper shape.

The recovery conveyor 32 is a device for supplying the short ball 3 introduced into the recovery hopper 31 to the ball supply device 40 and is formed to extend from the recovery hopper 31 to the ball supply device 40. The shot ball 3 that has flowed into the recovery hopper 31 is dropped and seated on a recovery conveyor 32 provided outside the housing 50. The shot ball 3 is conveyed by the recovery conveyor 32 to the ball storage tank (42).

1, a ball supply device 40 according to an embodiment of the present invention includes a ball storage tank 42, a sorting screen device 43, a first ball supply tank 44, a second ball supply tank 45, a third ball supply tank 46, and a ball supply line 47.

The ball storage tank 42 receives the shot ball 3 from a collection conveyor 32 of the ball collection device 30 or a separate shot ball tank 41 containing a large volume of the shot ball 3 of a predetermined size, do. The sorting screen device 43 sorts the shot ball 3 discharged from the ball storage tank 42 into sizes. The sorting screen device 43 according to an embodiment of the present invention includes a sorting case 431, a first screen 432, and a second screen 433.

The sorting case 431 is connected to the ball storage tank 42 so as to have an internal space portion capable of accommodating the shot ball 3. The first screen 432 is provided with a hole portion having a width smaller than the first size and larger than the second size and crossing the middle portion of the sorting case 431. The second screen 433 is provided on the lower side of the first screen 432 with a hole portion having a width smaller than the second size.

The shot ball 3 having a size larger than the first size among the shot balls 3 introduced into the upper portion of the sorting case 431 is positioned on the upper side of the first screen 432. [ The short ball 3 having a size smaller than the first size and larger than the second size passes through the first screen 432 and is positioned between the first screen 432 and the second screen 433. The short ball 3 having a size smaller than the second size passes through the first screen 432 and the second screen 433 and is positioned below the second screen 433. According to the sorting screen device 43 according to the embodiment of the present invention, the shot ball 3 is naturally classified in size within the sorting case 431 by its own weight as described above.

The first ball supply tank 44 is connected to the upper part of the sorting case 431 by a device unit into which the shot ball 3 having a size equal to or larger than the first size classified by the sorting screen device 43 is introduced and accommodated do. The second ball supply tank 45 is a device portion in which the shot ball 3 having a size smaller than the first size and larger than the second size is inflow and accommodated by the sorting screen device 43, And is connected to the intermediate portion. The third ball supply tank 46 is connected to the lower portion of the sorting case 431 by a device portion into which the shot ball 3 having a size smaller than the second size sorted by the sorting screen device 43 is introduced and accommodated .

The discharge portions of the first ball supply tank 44, the second ball supply tank 45 and the third ball supply tank 46 are correspondingly located on the upper portion of the ball water hopper 21 of the shot blaster 20 A short ball 3 having a size equal to or larger than the first size, a short ball 3 having a size smaller than the first size and a size equal to or larger than the second size, and a shot ball 3 having a size smaller than the second size, The short ball 3 having a large, medium, and small size is selectively discharged.

The ball supply line 47 includes a ball storage tank 42, a sorting screen device 43, a first ball supply tank 44, a second ball supply tank 45, a third ball supply tank 46, (20) and the ball hopper (21) of the ball joint (20).

The ball supply line 47 according to the embodiment of the present invention includes a first supply line 471 for connecting the lower portion of the ball storage tank 42 and the upper portion of the sorting screen device 43 in a communicative manner, And a seventh feed line 477 for connecting the ball hopper 21 and the ball hopper 21 in a communicative manner. The short ball 3 inside the ball storage tank 42 is supplied to the sorting screen device 43 or directly to the ball water hopper 21 by using the first supply line 471 and the seventh supply line 477 .

The ball supply line 47 according to an embodiment of the present invention includes a second supply line 472 for communicably connecting the upper portion of the sorting screen device 43 and the first ball supply tank 44, And a third supply line 473 for connecting the upper portion of the apparatus 43 and the hopper 21 for ball water in a communicative manner. The shot ball 3 having a size equal to or larger than the first size can be supplied to the first ball supply tank 44 or directly to the ball water hopper 21 by using the second supply line 472 and the third supply line 473, Can supply.

The ball supply line 47 includes a fourth supply line 474 for connecting the middle portion of the sorting screen device 43 and the second ball supply tank 45 in a communicative manner, And a fifth supply line 475 connecting the ball hopper 21 in a communicative manner. It is possible to supply the shot ball 3 having a size smaller than the first size and larger than the second size to the second ball supply tank 45 by using the fourth supply line 474 and the fifth supply line 475, (21).

The ball supply line 47 also includes a sixth supply line 476 for connecting the lower portion of the sorting screen device 43 and the third ball supply tank 46 in a communicative manner, And an eighth supply line for connecting the bottom and the hopper for ball water 21 in a communicative manner. The shot ball 3 having a size smaller than the second size can be supplied to the third ball supply tank 46 or directly to the ball water hopper 21 using the sixth supply line 476 and the eighth supply line .

According to the surface processing apparatus 1 of the present invention having the above-described configuration, the shot ball 3 of a predetermined size is jetted at a set flow rate using the shot blaster 20, and the surface of the object 2 The shot ball is collected by a ball collecting device and classified by size using a ball feeder 40 and supplied to the shot blaster 20 to perform a shot blasting process using a shot ball 3 of a predetermined amount Can be continuously performed.

According to the present invention, the open / close valve 25 is opened when the height of the top surface of the shot ball 3 measured by the ball measurement device 24 is equal to or greater than the set value, The flow rate of the shot ball 3 injected from the shot blaster 20 to the object 2 can be kept constant so that the flow rate of the shot ball 3 can be maintained over the entire surface of the object 2. [ Shot brassing can be performed uniformly with a desired surface roughness.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Accordingly, the technical scope of the present invention should be defined by the following claims.

1: surface machining device 2: object to be processed
3: Short ball 10: Cradle
11: moving truck 12: roll seat
13: guide rail 20: short blaster
21: hopper for ball water 22: ball injection device
23: ball feed path 24: ball measuring device
25: opening / closing valve 26:
27: sensor mounting base 30: ball collecting device
31: recovery hopper 32: recovery conveyor
40: ball feeder 41: short ball tank
42: ball storage tank 43: sorting screen device
44: first ball supply tank 45: second ball supply tank
46: third ball supply tank 47: ball supply line
50: Housing

Claims (8)

A cradle on which the object to be processed is mounted;
A shot blaster for spraying a shot ball onto the object to be processed and processing the surface of the object to be processed;
A ball collecting device for collecting the shot ball dropped and dropped from the shot blaster; And
And a ball supply device for supplying the shot blaster to the shot blaster by sorting the shot balls recovered in the ball recovery device by size.
The method according to claim 1,
The cradle,
A moving truck on which the object to be processed is mounted and which is moved in a horizontal direction;
A roll seat mounted on the moving carriage, on which the object to be processed is mounted, for supporting the object in a rotatable manner; And
And a guide rail for guiding the movement of the moving carriage.
3. The method of claim 2,
And a housing which houses the cradle and the object to be processed, and forms a box-shaped space part capable of restraining leakage of the shot ball ejected from the shot blaster,
Wherein the guide rails are formed so as to extend to the inside and the outside of the housing.
The method according to claim 1,
In the shot blaster,
A hopper for ball water in which the shot ball is received and accommodated from the ball supply device;
A ball injecting device disposed below the hopper for ball water and injecting the shot ball into the roll by rotation of the impeller or air pressure; And
And a ball supply path connecting the ball-and-pinion fulcrum and the ball injection device in a communicative manner and forming a path through which the shot ball is moved downward by its own weight.
5. The method of claim 4,
In the shot blaster,
A ball measurement device for measuring the amount of the shot ball received in the ball hopper;
An on-off valve installed in the ball supply passage for opening and closing the ball supply passage; And
And a controller for controlling the on-off valve according to a value measured by the ball-measurement device.
6. The method of claim 5,
Wherein the ball-measuring device measures a height of a top surface of the shot ball accommodated in the ball water hopper,
Wherein the control unit opens the ball supply path when the height of the top surface of the shot ball measured by the ball measurement device is equal to or greater than a set value, and when the height of the shot ball measured by the ball measurement device is less than a set value, The control unit performs control to close the surface processing apparatus.
The method according to claim 1,
The ball collecting apparatus includes:
A recovery hopper which is disposed on the lower side of the stand and into which the shot ball injected and dropped by the shot blaster flows; And
And a recovery conveyor configured to extend from the recovery hopper to the ball supply device and supply the shot ball introduced into the recovery hopper to the ball supply device.
The method according to claim 1,
The ball supply device includes:
A ball storage tank for receiving and receiving the shot ball from the ball collection device or a separate shot ball tank;
A sorting screen device for sorting the shot balls discharged from the ball storage tank by size;
A first ball supply tank through which the shot ball of the first size classified by the sorting screen device is introduced and accommodated, and discharges the shot ball of the first size to the shot blaster; And
And a second ball supply tank for introducing and receiving the shot ball of the second size sorted by the sorting screen device and discharging the shot ball of the second size to the shot blaster, Device.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114193336A (en) * 2020-09-02 2022-03-18 杉野机械股份有限公司 Abrasive blasting device and abrasive blasting method
CN116572162A (en) * 2023-07-10 2023-08-11 成都大学 Dust protected surface treatment shot-blasting machine
KR102580081B1 (en) * 2023-02-06 2023-09-19 주식회사 금강테크원 Nozzle type shot blast apparatus

Family Cites Families (1)

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Publication number Priority date Publication date Assignee Title
KR101085972B1 (en) * 2011-04-29 2011-11-22 신광기계기술 주식회사 A shot blaster

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114193336A (en) * 2020-09-02 2022-03-18 杉野机械股份有限公司 Abrasive blasting device and abrasive blasting method
CN114193336B (en) * 2020-09-02 2024-02-20 杉野机械股份有限公司 Grinding and shot blasting device and grinding and shot blasting method
KR102580081B1 (en) * 2023-02-06 2023-09-19 주식회사 금강테크원 Nozzle type shot blast apparatus
CN116572162A (en) * 2023-07-10 2023-08-11 成都大学 Dust protected surface treatment shot-blasting machine
CN116572162B (en) * 2023-07-10 2023-09-12 成都大学 Dust protected surface treatment shot-blasting machine

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