KR100711381B1 - Automatic powdering test apparatus - Google Patents

Abstract

An automatic powdering test apparatus is provided that automatically cleans the specimen and forms V-BENDING and UNBENDING sections on the specimen.

The present invention, the frame; Washing section; Specimen loading section; A bending molding part disposed on one side of the test piece loading part and having a top and bottom mold, and having a pressurized cylinder for forming a bend in the test piece by moving the upper mold with respect to the lower mold; A bending spreading part disposed on one side of the bending forming part and having an upper and a lower mold, and having a pressurizing cylinder for spreading the bent test piece by moving the upper mold with respect to the lower mold; And a test piece conveying unit.

According to the present invention, during the powdering test of the steel sheet, the test piece K can be quickly and accurately performed automatically and accurately without washing, bending, and unfolding, thereby greatly improving work productivity, and standardizing the test work so that homogeneity of measurement data can be achieved. The effect of securing is obtained.

 Washing part, test piece loading part, bending forming part, bending spread part, powdering test device

Description

Automatic Powdering Tester {AUTOMATIC POWDERING TEST APPARATUS}

1 is a front view showing an overall automatic powdering test apparatus according to the present invention.

Figure 2 is a plan view of the automatic powdering test apparatus according to the invention as a whole from the upper side.

Figure 3 is a side view showing an automatic powdering test apparatus according to the present invention from one side.

Figure 4 is a detailed view of the washing unit provided in the automatic powdering test apparatus according to the present invention,

      a) Turning positive cross section, b) Turning side cross section.

Figure 5 is an external perspective view of the test piece loading unit provided in the automatic powdering test apparatus according to the present invention.

Figure 6 is a detailed view of the test piece loading portion provided in the automatic powdering test apparatus according to the present invention, a) is a side cross-sectional view, b) is a front sectional view.

Figure 7 is a detailed view of the bending molded part provided in the automatic powdering test apparatus according to the present invention, a) is a front cross-sectional view, b) is a side cross-sectional view. .

Figure 8 is a perspective view showing in detail the structure of the upper, lower molds and the brush portion of the bending molded part provided in the automatic powdering test apparatus according to the present invention. .

9 is a detailed view of the bent spread portion provided in the automatic powdering test apparatus according to the present invention, a) is a front cross-sectional view, b) is a side cross-sectional view.

Figure 10 is a perspective view showing in detail the structure of the upper and lower molds and the brush portion of the bent spread portion provided in the automatic powdering test apparatus according to the present invention.

       * Explanation of symbols for main parts of drawings *

1 .... Automatic powdering test apparatus according to the present invention

5 .... frame 10 .... washing part

12 ... Ultrasonic Oscillator 14 ... Casing

14a ... aquarium 18 .... Cassette

20 .... lifting cylinder 22 ... link

24 .. Support lever 28 .... Circulation pump

30 .... Test piece loading section 32 .... Gripper

34 .... Magazine 38 .... suction tube

40 .... bending molding part 42,72 .... upper mold

44,74 .... lower mold 50 .... brush blowing

52 .... horizontal rail 54 .... crossbar

58 .... Brush 58a ... Air jet nozzle

62a, 62b ... limit switch 64 ... touch bar

70 .... Bend Unfold 76 .... Pressurized Cylinder

78 .... Support 79a, 79b ....

80a, 80b ... spring 85 .... blowing brush

87 .... horizontal rail 88 .... crossbar

89 .. Moving Block 90 .... Brush

90a ... air jet nozzle 90b ... flexible tube

92a, 92b ... limit switch 100 .... Specimen feed section

110 .... The 1st Transfer Station 120 .... The 2nd Transfer Station

130 .... 3rd Carrier 150 .... Control Unit

K .... Test piece K '.... V-Bending

      The present invention relates to a test facility for automatically testing the plated adhesion of the steel sheet, and to measure and control it, and more particularly, to automatically clean the test piece, and to V-BENDING and UNBENDING sites. The present invention relates to an automatic powdering test apparatus for forming a tape on a test piece to attach a tape in a subsequent process and to easily determine the degree of plating adhesion.

       In general, during the production of galvanized steel sheet, some specimens are taken and various tests are performed on the specimens. Among them, reliability of the degree of plating adhesion is one of the most important quality requirements.

      Therefore, the test and measurement of the degree of plating adhesion of the steel sheet is performed by hand or unit process, such as test piece cleaning, V-bending, spreading, tape attaching and detaching, peel width measurement, and data management.

      Some of these test processes were automated, but the testing and measurement tasks were not objective for each operator. In particular, the process of cleaning, v-bending, and unfolding the test piece is performed by the operator's hand in such a test process, and thus productivity is lowered and standardized test work cannot be realized.

      In particular, since the cleaning of the test piece was performed by the operator's manual work, the same conditions for each test piece could not be maintained, and the influence on the test data could not be kept the same, and the force applied to the test piece could not always be constant, so it could not be standardized. It was difficult to secure the homogeneity of the data.

      The present invention is to solve the conventional problems as described above, when the powdering test of the steel sheet to perform a task such as washing, bending and unfolding of the test piece automatically and automatically without manual work to automatically improve the work productivity significantly It is a first object to provide a powdering test apparatus.

In addition, the present invention provides an automatic powdering test apparatus to maintain the same conditions for each test piece to maintain the same effect on the measurement data, and to maintain the uniformity of the force applied to the test piece at all times to ensure uniformity of the measurement data. There is a second purpose.

The present invention to achieve the above object,

In the automatic powdering test apparatus for testing the plating quality of the steel sheet,

A frame forming a structure having a predetermined size;

A washing unit disposed at a side of the frame, having a plurality of test pieces therein, and washing the test pieces using an ultrasonic oscillator;

A test piece stacking unit having a gripper for loading a plurality of washed test pieces on the frame and sucking and discharging them by pneumatic pressure;

A bending molding part disposed on one side of the test piece loading part and having a top and bottom mold, and having a pressurized cylinder for forming a bend in the test piece by moving the upper mold with respect to the lower mold;

A bending spreading part disposed on one side of the bending forming part and having an upper and a lower mold, and having a pressurizing cylinder for spreading the bent test piece by moving the upper mold with respect to the lower mold; And

The test piece is provided with a plurality of feeders that the gripper is mounted to move in a first direction, in a second direction orthogonal to the first direction, and in a third direction different from the first and second directions. Provides an automatic powdering test apparatus comprising a; conveying the test piece conveying part to achieve the movement and mounting and discharge of the test piece.

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

The automatic powdering test apparatus 1 according to the present invention is an apparatus for cleaning, bending and unfolding the test piece K in order to test the plating quality of the steel sheet.

Automatic powdering test apparatus 1 according to the present invention is provided with a frame 5 to form a structure of a predetermined size.

The frame 5 is made of a conventional steel structure, the upper surface of which is equipped with various mechanisms described later.

The automatic powdering test apparatus 1 according to the present invention is disposed on the side of the frame 5, and incorporates a plurality of test pieces K, and makes the cleaning of the test piece K by using the ultrasonic oscillator 12. It has a washing section 10.

As shown in FIG. 4, the washing unit 10 includes a casing 14 having a water tank 14a formed of a hollow internal space, and the lid 16 is rotatable on an upper portion of the casing 14. It is mounted, the bath (14a) is provided with an ultrasonic oscillator (12).

In addition, the inside of the water tank (14a) contains a washing liquid made by mixing alcohol and water by 50% each. In the water tank 14a, a cassette 18 capable of vertically mounting a plurality of test pieces K is disposed, and the cassette 18 is a lifting cylinder located to the side of the casing 14. It is comprised so that it may be put on the support lever 24 of the link 22 which raises and falls by 20. As shown in FIG.

As shown in FIG. 4B, when the rod 20a of the elevating cylinder 20 is withdrawn from the body, the washing unit 10 is connected to the rod 20a through a link 22. 24 and the cassette 18 are raised, and when the lifting cylinder 20 is lowered, the support lever 24 and the cassette 18 are lowered to the inside of the water tank 14a, so that the upper portion of the ultrasonic oscillator 12 Raised on

The washing unit 10 lowers the cassette 18 in the water tank 14a, soaks the test piece K in the washing liquid, then closes the cover 16 and operates the ultrasonic oscillator 12 by ultrasonic vibration. The cleaning solution causes a slight vibration to clean the surface of the specimen (K).

Therefore, the operator can always clean the surface of the test piece (K) to a certain standard. Then, the cleaned test pieces (K) by opening the cover 16 to operate the lifting cylinder 20 to raise the cassette 18, lift the cassette 18 from the support lever 24, a new test piece (K) ) Is introduced into the water tank 14a.

In addition, a storage tank 26 for storing the washing liquid on the side of the water tank 14a is provided inside the casing 14, and a circulation pump 28 is provided on one side thereof.

In addition, the water tank 14a, the reservoir 26 and the pump 28 are connected to each other through a built-in piping system (not shown), so that when the operator needs to replace the cleaning liquid, from the reservoir 26 The washing liquid can be circulated to the water tank 14a and from the water tank 14a to the storage tank 26, respectively, to surface-treat the test piece K with the fresh washing liquid.

In addition, the present invention has a test piece loading portion 30 having a gripper (32) for loading a plurality of washed test pieces (K) on the frame (5), and suctioned and discharged by pneumatic pressure .

The test piece loading part 30 is a frame of a predetermined size in which a plurality of test pieces (K), for example, 30 to 50 pieces of test pieces (K) are inserted and stored vertically in one side as shown in FIG. 5 as a whole. Test piece magazine (34) is formed to form a, and one side of the gripper (32) for attaching the test piece (K) to the lower portion by the air suction force is disposed.

The gripper 32 is provided with a plurality of suction pipes 38 on the gripper body 36 which is movable on the first carriage 110 of the test piece transfer unit 100 described later, the suction pipes 38 It is connected to a vacuum pressure generating means (not shown) via a conduit 38a to form a vacuum pressure at the end of each suction pipe 38.

The vacuum pressure generating means may be a separate vacuum tank (not shown), or may be a vacuum device (not shown) provided in the field, the suction pipe 38 is provided with an automatic opening and closing valve (not shown) suction pipe 38, the vacuum pressure can be adjusted.

Such a gripper 32 is, as shown in Figure 6, the gripper body 36 is advanced on the first conveyance table 110 is located on the upper part of the test piece magazine 34, the test piece transfer section 100 When the first feeder 110 descends on the second transporter 120 so that the end of the suction pipe 38 is positioned above the test piece K, and generates a vacuum pressure in the suction pipe 38, the test piece K Is attached to the lower ends of the plurality of suction pipes 38, and in this state, the gripper body 36 moves in the opposite direction to the above, and takes out the test piece K from the test piece magazine 34.

Moreover, this invention is equipped with the bending shaping | molding part 40 for bending the test piece K taken out as mentioned above.

The bending part 40 is disposed on one side of the test piece loading part 30 and includes upper and lower molds 42 and 44, and moves the upper mold 42 relative to the lower mold 44 to test the specimen. It is a structure provided with the pressurization cylinder 46 which forms bending in K. As shown in FIG.

As shown in FIG. 7, the bending part 40 includes a support 48 having a substantially “C” shape on the frame 5, and an upper mold 42 on the upper side of the support 48. A pressurized cylinder 46 which operates hydraulically to move up and down is provided, and a lower die 44 is disposed at a position corresponding to the upper die 42 on its lower side.

The upper mold 42 and the lower mold 44 form a V-bend K 'on the test piece K when they are joined together. In other words, the bottom surface of the upper mold 42 is formed with a roughly " Ｖ " shaped protrusion 42a, and the upper surface of the lower mold 44 is formed with a groove " a "

In addition, the inside of the support 48 further includes a brush portion 50 for cleaning the lower surface of the upper mold 42. As illustrated in FIG. 8, the brush part 50 is mounted on a cross bar 54 having a horizontal rail 52 so that the moving block 56 is slidable, and an upper portion of the moving block 56 is provided. The brush 58 is attached to the surface at a position corresponding to the lower surface of the upper mold 42.

The moving block 56 is moved on the crosspiece 54 using a built-in servo motor. Then, the upper mold 42 forms a V-bend K 'on the test piece K, and when raised, the brush 58 is moved to the lower side of the upper mold 42 so that the upper mold 42 The lower surface is cleaned while moving left and right, and the powder of the test piece K, which may be attached during the bending of the test piece K, is removed from the lower face of the upper mold 42.

In addition, an air jet nozzle 58a is disposed at one side of the brush 58 in the moving block 56, and the air jet nozzle 58a is aired through a flexible pipe 58b and an opening / closing means (not shown). It is connected to a supply means (not shown). Therefore, when the moving block 56 cleans the lower surface of the upper mold 42 using the brush 58, the air jet nozzle 58a injects air into the upper mold 42 and blows off foreign matter. send.

On the other hand, a plurality of limit switches 62a and 62b are disposed on one side of the pressurizing cylinder 46, and the touch bar 64 is configured to generate a touch signal in proximity to the limit switches 62a and 62b. Is moved up and down in conjunction with the rod 46a of the pressure cylinder 46.

Therefore, when the upper mold 42 is lowered to form the V-bending K ', the touch bar 64 contacts the lower limit switch 62a to prevent excessive lowering of the upper mold 42, When the upper mold 42 rises, it contacts the upper side limit switch 62b to prevent excessive rise of the upper mold 42.

Through this process, the V-bend (K ') generated test piece (K) is flattened in the next bent spread portion (70).

According to the present invention, the bending spreading part 70 is disposed on one side of the bending forming part 40. The bending spreading portion 70 includes upper and lower molds 72 and 74, and moves the upper mold 72 to the lower mold 74 to open the pressurized cylinder 76 to spread the bent test piece K. It is equipped structure.

As shown in FIG. 9, the bent unfold portion 70 includes a support 78 having a substantially “C” shape on the frame 5, and an upper mold 72 on the upper side of the support 78. A pressurized cylinder 76 operating by hydraulic pressure to move up and down is provided, and a lower die 74 is disposed at a position corresponding to the upper die 72 on its lower side.

The upper mold 72 and the lower mold 74 spread the V-bending K 'flat on the test piece K when they are joined together. That is, the bottom surface of the upper mold 72 is flat and the top shaving flat of the lower mold 74 is flat.

In addition, the lower mold 74 is provided with support protrusions 79a and 79b for horizontally mounting the test piece K on which the V-bending K 'is formed. The support protrusions 79a and 79b are provided. As shown in FIG. 10, the plurality of protrusions are raised to protrude from the lower mold 74.

The supporting protrusions 79a and 79b are inserted into the lower mold 74 when the upper mold 72 is pressed toward the lower mold 74, and the supporting protrusions 79a and 79b are formed inside the lower mold 74. Spaces into which 79a and 79b can flow are provided, respectively, and springs 80a and 80b are built in the space to support the lower surfaces of the support protrusions 79a and 79b to the upper side.

Through the above structure, the support protrusions 79a and 79b are supported to the upper side, and the V-bending K 'portion of the test piece K is positioned between the support protrusions 79a and 79b, and FIG. 9B. As shown in Fig. 2), the test piece K can be placed horizontally on the lower mold 74 by supporting the horizontal portions of the test piece K, respectively, with the supporting protrusions 79a and 79b.

In this state, when the upper mold 72 is lowered to the lower mold 74 side, the supporting protrusions 79a and 79b are lowered to the inside of the lower mold 74 while supporting the test piece K. As a result, The test piece K is compressed by the upper mold 72 and the lower mold 74 and flattened.

In addition, the inside of the support 78 further includes a brush portion 85 for cleaning the lower surface of the upper mold (72). The brush portion 85 is mounted so that the movable block 89 is slidably movable on the crosspiece 88 having the horizontal rail 87, and the upper mold 72 is mounted on the upper surface of the movable block 89. The brush 90, the air injection nozzle 90a and the flexible pipe 90b built in the inside are mounted at a position corresponding to the lower surface of the.

Since the structure and the effect of the brush portion 85 is approximately the same as the brush portion 50 provided in the bending portion 40 will not be described any more for the sake of brevity of description.

On the other hand, a plurality of limit switches 92a and 92b are disposed on one side of the pressurizing cylinder 76 vertically, and the touch bar 94 generating a touch signal in proximity to the limit switches 92a and 92b. Is moved up and down in conjunction with the rod 76a of the pressure cylinder 76.

Since the limit switches 92a and 92b and the touch bar 94 are substantially the same as the limit switches 92a and 92b and the touch bar 94 provided in the bending part 40, the descriptions thereof will be described. For the sake of brevity, no further explanation will be given.

Through this process, the V-bend (K ') generated test piece (K) is flattened.

In the present invention, the test piece K is sequentially moved to the test piece stacking part 30, the bending forming part 40, and the bending spreading part 70 side as described above, so that the test piece K is processed. And a specimen transfer part 100 for mounting and discharging.

The test piece conveying unit 100 extends in a three-dimensional direction in which the directions of the first carrier 110, the second carrier 120, and the third carrier 130 are perpendicular to each other. . That is, the test piece conveying unit 100 is equipped with a gripper 32 is movable in the first direction 110 and the second direction orthogonal to the first carrier 110 and the first direction A second carriage 120 capable of moving in the first direction and a third carriage 130 capable of moving the second carriage 120 in a third direction different from the first and second directions. Consists of Cartesian coordinate robots.

As shown in FIGS. 1 to 3, the test piece conveying part 100 is disposed in front of the test piece stacking part 30, the bending forming part 40, and the bending spreading part 70 on the frame 5. It is.

That is, the test piece conveying part 100 is left and right in the horizontal direction (for example, X axis direction) in front of the test piece stacking part 30, the bending molding part 40, and the bending spreading part 70 side. The second carriage 120 is slidable on the arranged third carriage 130, and the second carriage 120 is vertically orthogonal to the third carriage 130 (for example, Y-axis direction), the first carriage 110 is slideable on the second carriage 120, the first carriage 110 is the second carriage 120 and the third carriage It is possible to slide in the horizontal direction (for example, Z-axis direction) before and after each orthogonal to (130).

In addition, the first carriage 110 may be moved using an internally operated servo motor (not shown) on the second carriage 120, and the second carriage 120 may be a third carriage ( It is possible to slide by using the built-in servo motor.

In addition, the gripper body 36 is movable in the longitudinal direction on the first conveyance table (110).

Since the test piece transfer unit 100 is made of a three-dimensional rectangular coordinate robot that is commonly used in the art, more detailed description thereof will be omitted, but those skilled in the art will fully understand the structure and the structure through FIGS. You can see the effect.

In addition, the present invention through the test piece loading unit 30, the bending molding unit 40, the bending spreading unit 70, the test piece conveying unit 100, and the like by moving the test piece (K) in advance set in advance The control unit 150 which automatically implements processing such as V-bending K 'and spreading of the test piece K is provided.

The control unit 150 may be a conventional programmable logic controller (PLG) or a computer.

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

      In the automatic powdering test apparatus 1 of the present invention, as shown in FIG. 4, first, a plurality of test pieces K are sequentially stacked at regular intervals in the cassette 18, and then, the tank of the washing unit 10 ( The ultrasonic oscillator 12 is operated by being precipitated in 14a). Therefore, the test piece (K) is cleaned for a standard time by ultrasonic waves, thereby removing foreign substances and oil (Gil) and grease (Grease) on the surface of the test piece (K). In this process, the ultrasonic vibration occurs minutely, so the cleaning process of the test piece K is made quietly and also very clean.

      Therefore, it is possible to maintain the same conditions of each test piece (K) through the cleaning by the standard time which is a feature of the present invention.

      In addition, the test piece K, which has been cleaned in this manner, is loaded in the loading part 30, and then moved to the bending molding part 40 by using the gripper 32 and the test piece conveying part 100.

In this case, the present invention moves the gripper 32 to the upper side of the test piece magazine 34 as shown in FIG. 6 to attach the test piece K to the bottom of the suction tube 38 at a vacuum pressure.

      In this case, the second carriage 120 is located on the front side of the test piece loading portion 30 on the third carriage 130, the gripper body 36 is moved to the front side of the first carriage 110. And the test piece K is fixed to the suction pipe 38.

      Then, the test piece K is lifted up, and then the second transfer table 120 is moved on the third transfer table 130 to move toward the bend forming portion 40.

      Next, the test piece K attached to the gripper 32 is advanced between the upper and lower molds 42 and 44 of the bend-shaped part 40, and the test piece K is lowered on the lower mold 44. . When the test piece K is put down in this manner, the test piece K is placed on the lower mold 44 by its own weight by releasing the vacuum pressure applied to the suction pipe 38. In this state, the bending molded part 40 operates the pressure cylinder 46 so that the upper mold 42 presses the test piece K against the lower mold 44 so that the protrusion 42a provided on the upper mold 42 is provided. ) Interacts with the groove 44a of the lower mold 44 to form a V-bend K 'on the test piece K.

      As such, when the V-bending K 'is formed on the test piece K, the upper mold 42 is raised, and the brush part 50 provided in the bending molding part 40 is operated to lower the upper mold 42. The face is cleaned as a brush 58.

      Also, in this state, the test piece transfer part 100 includes a test piece in which a gripper body 36 on the first conveyance table 110 is advanced and a vacuum pressure is formed in the suction pipe 38 to form a V-bend K '( K) is attached and lifted from the lower mold 44 of the bending part 40. Then, the gripper body 36 is reversed on the first conveyance table (110).

      Next, the second carrier 120 is moved from the bend forming part 40 to the bend spreading part 70 side, and at the bend spreading part 70 side, the gripper main body 36 is again on the first conveyance plate 110. It moves forward and moves between the upper and lower molds 72 and 74 of the bending spreading part 70, and the V-bending of the test piece K between the supporting protrusions 79a and 79b of the lower mold 74. Place the specimen (K) so that K ') is located.

      In addition, when the gripper 32 exits from this state, the upper mold 72 of the bending spreading portion 70 descends to unfold the test piece K, and the supporting protrusions 79a and 79b are lower molds ( 74) is inserted into the test piece (K) is gradually flattened.

      Then, when the test piece K is completely unfolded, the upper mold 72 is raised, and the test piece K is unfolded in a flat plate shape and lifted on the supporting protrusions 79a and 79b of the lower mold 74 to gripper 32. After advancing again, the test piece K is drawn out from between the upper and lower molds 72 and 74 of the bending spreading part 70.

      As described above, when the test piece K is removed from the supporting protrusions 79a and 79b of the lower mold 74, the bending spreading portion 70 operates the brush portion 85 to clean the lower surface of the upper mold 72. As a result, foreign matter or powder is removed from the upper mold 72.

      Through the above process, the test piece K is bent at the standard pressure, standard time, and standard speed on the bend forming part 40, and also at the bent unfolding part 70 at standard pressure, standard time, and standard speed. Unfolding will be performed. In addition, the bend forming part 40 and the bent spreading part 70 keep the upper molds 42 and 72 clean by using the air and the brush 58 after the operation, so that they can be more perfectly prepared for the next test. It is.

In this way, the V-bend K 'and the test piece K which have undergone the unfolding process are drawn out from the bent unfolding part 70 in a state of being attached to the suction pipe 38 of the gripper 32, and disposed laterally. It is transferred to the powder peeling unit 140. In this case, the transfer of the test piece K is performed by additionally transferring the third transfer table 130 of the test piece transfer unit 100 to the second transfer table 120, and thus, in the powder peeling unit 140. By attaching the tape to the test piece K, which is bent and unrolled, and detecting the powder attached to the tape, the quality of the steel sheet to which the test piece K belongs.

In addition, when the test piece (K) is subjected to the bending and spreading process from the loaded state and is conveyed to the powder peeling unit 140, the test piece conveying unit 100 is a second conveying table on the third conveying table 130 Left and right horizontal movement and stop of the 120 is made, the vertical movement and stop of the second carrier 120 is made on the second carrier 120, the gripper body (1) on the first carrier (110) 36) move forward and stop respectively.

By operating as described above, the test piece K can achieve a desired feed. As such, the matters related to driving and stopping of various position detection sensors and servomotors related to the feeding and stopping of the test piece K are known in the art. Since the conventional technology can be implemented, a detailed description thereof will be omitted.

      According to the present invention as described above, when the powdering test of the steel sheet, the test piece (K) to perform operations such as washing, bending and unfolding automatically and automatically without manual work is obtained an effect that can greatly improve the work productivity.

In addition, the present invention maintains the same conditions for each test piece (K), so that surface cleaning, V-bending and unfolding can be achieved, thus maintaining the same effect on the measurement data, and the force applied to the test piece (K) is always constant. By maintaining and standardizing it, the effect of securing the homogeneity of the measurement data is obtained.

Therefore, the effect of improving the test reliability of the steel sheet more quickly and accurately without the operator's manual operation is obtained.

      While the invention has been shown and described with respect to specific embodiments thereof, those of ordinary skill in the art may vary the invention without departing from the spirit and scope of the invention as set forth in the claims below. It will be appreciated that modifications and changes can be made. Nevertheless, it will be clearly understood that all such modifications and variations are included within the scope of the present invention.

Claims (10)

In the automatic powdering test apparatus for testing the plating quality of the steel sheet, A frame forming a structure having a predetermined size; A washing unit disposed at a side of the frame, having a plurality of test pieces therein, and washing the test pieces using an ultrasonic oscillator; A test piece stacking unit having a gripper for loading a plurality of washed test pieces on the frame and sucking and discharging them by pneumatic pressure; A bending molding part disposed on one side of the test piece loading part and having a top and bottom mold, and having a pressurized cylinder for forming a bend in the test piece by moving the upper mold with respect to the lower mold; A bending spreading part disposed on one side of the bending forming part and having an upper and a lower mold, and having a pressurizing cylinder for spreading the bent test piece by moving the upper mold with respect to the lower mold; And       The test piece is provided with a plurality of feeders that the gripper is mounted to move in a first direction, in a second direction orthogonal to the first direction, and in a third direction different from the first and second directions. Automatic powdering test apparatus comprising a; conveying the specimen conveying portion to achieve the movement and mounting of the specimen.       According to claim 1, wherein the cleaning unit has a casing having a water tank made of a hollow inner space, the upper portion of the casing is mounted so as to be rotatable, the water tank is provided with an ultrasonic oscillator, a plurality of in the water tank A cassette for placing the test piece vertically mounted is arranged, the cassette is placed on the support lever of the link operated by the lifting cylinder located on the side of the casing to enter into the tank Powdering test device.       The test piece stacking unit of claim 1, wherein the test piece stacking unit includes a test piece magazine in which a plurality of test pieces are inserted in a vertical direction and stored therein, and a gripper for attaching the test piece to the lower part by air suction force is disposed on one side thereof. Is provided with a plurality of suction pipes in the gripper body movable in the test piece transfer floating, the vacuum powder is connected to the vacuum pressure generating means is a test piece is attached to the lower end of the plurality of suction pipes by vacuum pressure is formed.       According to claim 1, wherein the bending portion is provided with a support on the frame, the upper side of the support is equipped with a hydraulic cylinder for operating the hydraulic pressure for raising and lowering the upper mold up and down, the lower side corresponding to the upper mold A lower mold is disposed at a position, a lower surface of the upper mold is formed with a protrusion, a groove is formed on the upper surface of the lower mold, and the support further includes a brush portion for cleaning the lower surface of the upper mold. Automatic powdering tester.       The method of claim 4, wherein the brush portion is mounted so that the movable block is slidable on the crosspiece having a horizontal rail, the upper surface of the movable block is mounted on the brush corresponding to the lower surface of the upper mold, The moving block is an air injection nozzle is disposed on one side of the brush, the air injection nozzle is connected to the air supply means for injecting air to the upper mold and cleaning the foreign powder, characterized in that for cleaning the foreign matter.       According to claim 1, wherein the lower mold of the bent spread portion is provided with supporting protrusions for horizontally placing the V-bend formed test piece, the supporting protrusions protrude from the lower mold, the interior of the lower mold Automatic powdering test apparatus, characterized in that the projections are provided in each space, the springs are built in the space to support the lower surface of the support projections to the upper side by the support projections to maintain the test piece horizontally on the lower mold .       The method of claim 6, wherein the bent spread portion further comprises a brush portion for cleaning the lower surface of the upper mold inside the support, the brush portion is capable of sliding the movable block on the horizontal object having a horizontal rail from the support object And a brush, an air spray nozzle, and a flexible tube at a position corresponding to a lower surface of the upper mold on an upper surface of the movable block.       According to claim 1, wherein the test piece conveying unit is a first conveyance is mounted to the gripper is movable in the first direction and a second conveyance capable of moving the first conveyance in a second direction orthogonal to the first direction And a third carriage for moving the second carriage in a third direction different from the first and second directions to move the test piece to the test piece loading portion, the bending forming portion, and the bending spreading portion. Automatic powdering test device, characterized in that to achieve the mounting and discharge of the test piece.       9. The automatic powdering test of claim 8, wherein the test piece conveying portion extends in a three-dimensional direction orthogonal to each other with respect to the directions of the first conveyance carrier, the second conveyance carrier, and the third conveyance carrier. Device.       10. The method according to any one of claims 1 to 9, wherein the test piece loading portion, the bending forming portion, the bending spreading portion, and the test piece conveying portion are moved by the test piece, and the V-bending and unfolding of the test piece is performed through a preset automatic control program. Automatic powdering test apparatus, characterized in that it further comprises a control unit for automatically implementing such processing.

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