KR100709625B1 - Steel sheet transfer apparatus - Google Patents

Abstract

The present invention relates to a steel sheet conveying apparatus that grips the flat steel sheet and the corrugated steel sheet from a first place where at least one of a flat flat plate and a corrugated steel sheet having a wave shape is loaded, and transfers the grip plate to the second place. At least one first grip portion for sucking and gripping the flat steel plate; At least one second grip portion for gripping the corrugated steel sheet by magnetic force; A grip position for gripping the flat steel plate or the corrugated steel plate loaded in the first place or the first grip part or the second grip part, and at least one of the first grip part and the second grip part is transferred to the second place; An elevating portion for elevating and moving at least one of the first grip portion and the second grip portion between the movement positions thereof; And a moving unit configured to reciprocally move at least one of the first grip unit and the second grip unit between the moving position and the second place. Accordingly, the adsorptive type grips and transfers the flat steel sheet, and the electronic type grips and transfers the corrugated steel sheet manufactured and formed into a corrugated sheet. It can be transported by all the grip, and when the flat steel plate grip to provide a steel sheet conveying apparatus for injecting water to increase the friction force during bending.

Description

Steel Sheet Transfer Device {STEEL SHEET TRANSFER APPARATUS}

1 is a front view of a steel sheet conveying apparatus according to a first embodiment of the present invention,

2 is a side view of the steel sheet conveying apparatus according to the first embodiment of the present invention,

3 is a front view of a state in which the steel sheet conveying apparatus according to the first embodiment of the present invention grips a corrugated steel sheet,

4 is a side view of the steel sheet conveying apparatus according to the first embodiment of the present invention to grip the corrugated steel sheet;

5 is a cross-sectional view showing a portion A of FIG. 1,

6 is a cross-sectional view illustrating a state in which the lifting tube of FIG. 5 is raised and fixed;

7 is a cross-sectional view showing a portion A of the steel plate conveying apparatus according to the second embodiment of the present invention,

8 is a front view of a steel sheet conveying apparatus according to a third embodiment of the present invention,

9 is a side view of the steel plate conveying apparatus according to the third embodiment of the present invention.

<Description of Major Symbols in Drawing>

1: steel plate feeder 2: flat steel sheet

3: corrugated steel sheet 10: first grip part

20: second grip portion 30: main lifting portion

32: sub lifting unit 40: moving unit

50: fixed part 60: watering device

100: first frame 200: second frame

300: moving frame

The present invention relates to a steel plate conveying apparatus, and more particularly, by adsorbing and electronic in parallel, both the flat steel sheet or corrugated steel sheet can be gripped and transported, and when the flat steel sheet is gripped, water for increasing frictional force during bending is provided. It relates to a steel sheet conveying apparatus for spraying.

Conventional steel sheet conveying apparatus was gripped using only electromagnets to transfer both the flat steel plate and the corrugated steel sheet having a bent waveform. That is, by determining whether or not magnetic force is generated by applying or cutting a voltage to the electromagnet, a feeding device equipped with a place where the steel sheet is loaded (hereinafter referred to as a 'loading place') and a chain for transferring or drawing in and out the steel sheet , The steel plate was gripped and transferred between the &quot; feeding device &quot;

Thus, when grip using only electromagnets, it was difficult to control the number of steel sheets to be gripped by the electromagnetic force. That is, it is because a case where two or more sheets of steel sheets gripped by magnetic force often occur. In order to prevent this, a method is used in which a space is formed between the loaded steel sheets by inserting wedges between the stacked steel sheets so that the steel sheet to be gripped is one sheet.

Here, since the corrugated steel sheet bent by the bending process is discharged one by one, it is easy to put the wedge by the conventional method as described above when loading, but the flat steel sheet that starts the process in the already loaded state lifts the steel sheet one by one There was a problem of putting a wedge.

In order to solve the above problems, an adsorption type conveying apparatus has been invented by using a suction plate to grip and transport a flat steel plate, but a problem occurs in that the absorption type conveying apparatus cannot grip a corrugated steel sheet. Therefore, whenever the corrugated steel sheet and the flat steel sheet are gripped, a problem arises in that the corrugated steel sheet or the flat steel sheet needs to be gripped while exchanging the electromagnet or the suction plate according to the shape of the steel sheet to be gripped, respectively.

In addition, conventionally, when bending the flat plate, water was sprayed on the surface of the flat plate before the grip to increase the friction force, which also has to be done manually.

In order to solve the above-mentioned problems, the present invention is a device having a different transfer function so that the suction type grips and transfers the flat steel plate and the electronic type grips and transfers the corrugated steel sheet manufactured by wave shape. By being mounted, both the flat steel sheet or the corrugated steel sheet can be gripped and transported, and when the flat steel sheet is gripped, it is an object of the present invention to provide a steel sheet conveying apparatus for injecting water for increasing frictional force during bending.

The above object is at least one first grip portion for sucking and grip the flat plate according to the present invention; At least one second grip portion for gripping the corrugated steel sheet by magnetic force; A grip position for gripping the flat steel plate or the corrugated steel plate loaded in the first place or the first grip part or the second grip part, and at least one of the first grip part and the second grip part is transferred to the second place; An elevating portion for elevating and moving at least one of the first grip portion and the second grip portion between the movement positions thereof; At least one of the flat grip plate and the corrugated steel sheet having a waveform, characterized in that it comprises a moving portion for reciprocating the at least one of the first grip portion and the second grip portion between the moving position and the second location It is achieved by a steel sheet conveying apparatus for gripping the flat steel plate and the corrugated steel sheet from the first place to transfer to the second place.

A lifting frame configured to move up and down by the lifting unit so that the first grip unit and the second grip unit are installed to move up and down between the grip position and the moving position; The moving frame may further include a moving frame connected to the lifting frame to reciprocally move by the moving unit so that the lifting frame moves between the moving position and the second place.

Here, the elevating frame is provided with the first grip portion, the first frame is moved up and down by the elevating unit; A second frame provided with the second grip part and connected to the first frame to move up and down with respect to the first frame; The apparatus may further include a sub-elevating unit configured to move the second frame up and down with respect to the first frame such that the first grip unit and the second grip unit have mutual height differences.

Here, the first grip part is installed to be movable up and down on the first frame such that the first grip part and the second grip part have a mutual height difference; The second grip part may further include a fixing part configured to fix the first grip part in a state in which the second grip part is upwardly moved from the first frame so as to protrude downwardly from the first grip part.

Here, the first grip portion and the suction plate for sucking the flat plate; An air injection unit for removing air in a space formed by the suction plate and the flat steel plate while the suction plate is in close contact with the flat steel plate at the grip position; A single-cylinder cylinder including a hollow piston in communication with the air injection portion and the suction plate, and the fixing portion accommodates the piston to be movable up and down; Interposed between the suction plate and the first frame may include a pressing member for pressing the suction plate in the downward direction of the first frame.

The first grip unit may include: an adsorption plate for adsorbing the flat steel plate; An air injection unit for removing air in a space formed by the suction plate and the flat steel plate while the suction plate is in close contact with the flat steel plate at the grip position; A hollow elevating pipe penetrating the first frame up and down and communicating the air injection portion and the suction plate; The fixing unit has at least one protrusion to prevent the lifting pipe is separated from the lower side of the first frame; A fixing body installed adjacent to the elevating pipe on the upper surface of the first frame and having a second fixing hole penetrating toward the elevating pipe; A first fixing hole formed in the lifting pipe so as to communicate with the second fixing hole of the fixing body in a state in which the first grip part is moved upwardly; A fixing member which is inserted into the first fixing hole of the elevating pipe through the second fixing hole of the fixing body in a state in which the first grip portion is moved upwardly and fixes the first grip part; Interposed between the suction plate and the first frame may include a pressing member for pressing the suction plate in the downward direction of the first frame.

The spraying apparatus may further include a sprinkling apparatus installed on the first frame to spray water onto the flat steel plate or the corrugated steel plate loaded in the first place on a path of the moving frame moving from the moving position to the second place. can do.

Hereinafter, embodiments of the steel sheet conveying apparatus according to the present invention will be described in detail with reference to the drawings.

Here, in describing the embodiments according to the present invention, the same reference numerals are used for the same configuration, and description thereof may be omitted as necessary.

As shown in FIGS. 1 to 4, the steel sheet conveying apparatus 1 according to the first embodiment of the present invention has a first grip part 10, a second grip part 20, elevating parts 30, 32, and moving parts. And 40.

The first grip part 10 is provided to suck and grip the flat steel plate 2 loaded in the first place. Here, the flat steel plate 2 means a flat steel sheet before molding, and is usually stored and transported in a state where a plurality of sheets are stacked and stacked. Here, the first place is a place where the flat steel plate 2 is loaded, and refers to a common warehouse or an arbitrary place loaded for forming the flat steel plate 2.

The first grip part 10 in this embodiment is provided with the suction plate 11, the air injection part 12, and the elevating pipe 52. Here, the suction plate 11 is provided in the shape of a trumpet, and there is formed at least one hole (not shown) through which the air is injected or sucked from the air injection unit 12. The air injection unit 12 is connected to the suction plate 11 to inject or suck air in the space formed by the suction plate 11 and the flat steel plate 2 to be in close contact with each other through the holes of the suction plate 11.

The air injection unit 12 in this embodiment is provided in the form of a hose. Here, the hose-type air injection unit 12 is a path through which air moves when air is injected or sucked by an air injection device (not shown). Here, as shown in Figure 1, the air injection portion 12 is an example that is provided with a hose formed in a coil shape of a material having elasticity. Accordingly, as the first grip part 10 moves up and down by the lifting parts 30 and 32 to be described later, it is possible to prevent the trouble of adjusting the length of the air injection part 12.

In addition, the elevating pipe 52 is provided with a hollow inside such that the suction plate 11 and the air injection unit 12 communicate with each other. Detailed description of the lifting pipe 52 will be described in detail in the fixing part (50).

The second grip portion 20 is provided to grip the corrugated steel sheet 3 by magnetic force. Here, the corrugated steel sheet 3 is a steel sheet formed by forming the flat steel sheet 2 to have a constant corrugation, and is generally used as a building material or the like. The second grip part 20 according to the present embodiment is provided as a magnetic force generating unit having a shape corresponding to the bone shape of the corrugated steel sheet 3. Here, the magnetic force generating unit refers to a known device that generates magnetic force when power is supplied from a power supply device (not shown), and does not generate magnetic force when the power is cut off. Is omitted.

On the other hand, it is preferable that the first grip part 10 and the second grip part 20 are provided in plural numbers. Accordingly, since the first grip part 10 and the second grip part 20 are preferably lifted at the same time, the first grip part 10 and the second grip part 20 are moved up and down at the same time between the grip position and the moving position. As an example, the lifting frames 100 and 200 to be installed are provided.

Here, the lifting frame (100,200) in the present embodiment, each first grip portion 10 is predetermined with respect to the flat plate 2 so that the first grip portion 10 is simultaneously lifted by the main lifting portion 30 to be described later As an example, the method further includes a first frame 100 to be aligned and spaced apart from each other.

In addition, it is taken as an example that two second grip parts 20 are provided. Therefore, in order to grip the corrugated steel sheet 3, each 2nd grip part 20 is arrange | positioned at the valley of the corrugated steel sheet 3 mounted in the 1st space at a predetermined space | interval, and arrange | positions the corrugated steel sheet 3 by it. You need to get on and off as you grip. Accordingly, as shown in FIGS. 1 and 2, the elevating frames 100 and 200 in the present exemplary embodiment are positioned above the second grip part 20 to support each second grip part 20 with a chain or the like. As an example, two frames 200 are provided. Therefore, as the second frame 200 is lifted by the sub-elevation unit 32, which will be described later, the second grip unit 20 is lifted and lifted as an example.

In the present embodiment, for example, the first frame 100 is provided in a quadrangular shape in which the central station is penetrated so that the second grip part 20 supported by the second frame 200 is located in the central region. In this case, since the second frame 200 is positioned above the center region of the first frame 100, the first frame 100 may be configured to cover the second frame 200 as illustrated in FIGS. 1 and 2. At least one support shaft 110 for supporting is provided as an example.

The lifting parts 30 and 32 may be formed by the first grip part 10 or the second grip part so that the flat plate 2 or the corrugated steel plate 3 can be gripped by the first grip part 10 or the second grip part 20. Move 20) up and down from the initial position to the grip position. In addition, the elevating parts 30 and 32 may be formed of the first grip part 10 and the second grip part when the flat plate 2 and the corrugated steel plate 3 are gripped by the first grip part 10 and the second grip part 20. At least one of the grip portions 20 is moved up and down from the grip position to the movement position.

Here, the grip position is a position to grip the flat steel plate 2 or corrugated steel plate 3 loaded in the first place by suction or magnetic force when the first grip unit 10 or the second grip unit 20 is located. Means. In addition, an initial position means the position before the 1st grip part 10 and the 2nd grip part 20 move by the elevating parts 30 and 32 to a grip position. In addition, the moving position is a position where the flat steel plate 2 or the corrugated steel plate 3 gripped by the first grip part 10 or the second grip part 20 can be moved to the second place at the grip position of the first place. Means. In the present embodiment, the moving position is one example in which the predetermined position is raised from the grip position.

In addition, the lifting units 30 and 32 of the present exemplary embodiment may move the first frame 100 so that at least one of the first grip unit 10 and the second grip unit 20 moves up and down between the initial position and the grip position. The support shaft for lifting up and down the second frame 200 such that the main lifting part 32 and the second grip part 20 for lifting up and down are located at the grip position or are separated by a predetermined interval from the valley of the corrugated steel plate 3. As an example, the sub lifting unit 30 installed in the 110 is provided.

In the present embodiment, the main lifting unit 30 moves up and down the first frame 100 by vertically moving two first shafts 33 supporting the first frame 100 using gears. Yes. Accordingly, the main lifting unit 30 is a pinion gear (not shown) and a pinion gear having a motor (not shown), a chain (not shown) for transmitting the rotational motion of the motor, and a sprocket rotating along the rotational motion of the chain. For example, a rack gear (not shown) for converting a rotational motion into a vertical motion is formed and provided as a first shaft 33 supporting and fixing the first frame 100. In addition, the present invention is not limited thereto, and thus, it is well known to convert the rotational motion of the motor to the vertical motion by using various kinds of gears such as barbell gears.

In addition, in the present exemplary embodiment, the main lifting unit 30 and the moving unit 40, which will be described later, are installed and supported to move up and down the first frame 100.

In addition, the sub-elevation unit 30 according to the present embodiment is installed on the support shaft 110 and the second grip unit 20 is the first grip unit based on the first grip unit 10 installed on the first frame 100. As an example, raising and lowering the second frame 200 so as to be lower or higher than 10 is positioned.

Here, the sub-elevation unit 30 according to the present embodiment lifts the two second shaft 31 and the second shaft 31 supporting and fixing the second frame 200 to lift the second frame 200. 2 grip part 20 is provided with the hydraulic cylinder for lowering or raising position than the first grip part (10). Here, the hydraulic cylinder is an example that is provided with a double-acting cylinder, the structure and operation principle of the double-acting cylinder will be omitted since it will be apparent to those skilled in the art. In addition, the sub lifting section 30 can be replaced with a pneumatic cylinder, of course.

The moving unit 40 removes the first frame 100 and the second frame 200 when the first frame 100 and the second frame 200 are raised to the moving position by the main lifting unit 32. It is provided to move the moving frame 300 to the second place to move from one place to the second place. Here, the second place refers to a device for bending the flat steel plate 2 to be conveyed, a feeding device for supplying the flat steel plate 2, and another loading place.

The moving part 40 in this embodiment is installed in the main frame, the guide 41 formed between the first place and the second place, the drive unit 42 and the drive unit 42 rolling along the guide 41. One example is provided with a drive motor (not shown) for driving the.

In this embodiment, two guides 41 are provided, and four driving units 42 are provided, and two guides 41 are positioned at each guide 41.

Accordingly, when the first frame 100 and the second frame 200 lifting up and down along the first frame 100 are lifted by the main lifting unit 32 and positioned at the moving position, the driving unit 40 is driven. The motor rotates the drive unit 42, and the drive unit 42 moves along the guide 41. Accordingly, the moving frame 300 moves to the second place by the moving unit 40 to move the first frame 100 and the second frame 200 to the second place.

Here, the guide 41 may be provided in the form of a rack gear having a tooth, and the driving unit 42 may be provided in the form of a gear having a tooth corresponding to the guide 41 of the rack gear shape.

Hereinafter, the operation principle of the steel sheet conveying apparatus 1 according to the first embodiment of the present invention by the above-described configuration.

 First, referring to Figures 1 and 2 will be described with respect to the transfer of the flat steel plate 2 through the steel sheet conveying apparatus 1 according to the first embodiment of the present invention. The first shaft is lowered to the moving frame 300 through the main lifting part 32 so that the first grip part 10 of the first frame 100 is positioned at an initial position in the first place where the flat plate 2 is loaded. Let's do it. At this time, the second frame 200 is raised by raising the second shaft 31 through the sub lifting unit 30 so that the second grip part 20 is positioned above the first grip part 10.

Therefore, when the suction plate 11 of the first grip part 10 provided on the first frame 100 comes into close contact with the upper surface of the flat steel plate 2 on which the suction plate 11 is mounted, the air in the space formed by the suction plate 11 and the flat steel plate 2 is formed. By suctioning the air through the air injection unit 12, the space formed by the suction plate 11 and the flat steel plate 2 is in a vacuum state.

Accordingly, the suction plates 11 of the first grip portions 10 press-fix the upper surface of the flat steel plate 2. In addition, the main lifting unit 32 raises the first frame 100 from the grip position to the moving position as the first shaft 33 is raised. Here, the flat steel plate 2 pressed and fixed by the first grip part 10 of the first frame 100 also rises to the moving position. In addition, when the first frame 100 is raised to the moving position, the driving motor of the moving unit 40 rotates to drive the driving unit 42, and thus the moving frame 300 is guided along the guide 41. While moving to the second place, the first frame 100 also moves to the second place along the moving frame 300.

Then, after arriving at the second place, the first frame 100 is lowered as the first shaft 33 is lowered by the main elevating part 32, and the first grip part (eg, through the air injection part 12). The grip of the flat steel plate 2 is released by injecting air into the space which the adsorption plate 11 and the flat steel plate 2 of 10) make.

When the grip is released, the first frame 100 is raised as the first shaft 33 is lifted by the main lifting unit 32, and the raised first frame 100 passes through the above-described moving position. Return to the initial position.

The transfer of the flat plate 2 from the first place to the second place is completed according to the above-described process, and the plurality of flat plate 2 can be transferred from the first place to the second place by repeating the above process. Can be.

3 and 4, the transfer of the corrugated steel sheet 3 through the steel sheet conveying apparatus 1 according to the first embodiment of the present invention will be described.

First, the moving frame 300 moves the first shaft through the main lifting part 32 so that the second grip part 20 of the second frame 200 is located at the grip position in the first place where the corrugated steel sheet 3 is loaded. To lower. At this time, the second frame 200 is lowered by lowering the second shaft 31 through the sub lifting unit 30 so that the second grip part 20 is positioned below the first grip part 10. Accordingly, as shown in FIG. 4, the second grip part 20 is positioned at the valley of the corrugated steel sheet 3.

Then, the second grip portion generates a magnetic force to grip the corrugated steel sheet 3 loaded in the first place. After that, the transfer of the corrugated steel sheet 3 gripped to the second position and gripped at the second place is the same process as the transfer of the flat steel plate 2, and will be omitted.

Accordingly, the steel sheet conveying apparatus 1 according to the present invention can selectively transfer to the second place even if the shape of the steel plate loaded in the first place is changed to the corrugated steel sheet 3 or the flat steel plate 2. .

Here, in the present embodiment, the steel sheet conveying apparatus 1 includes the first grip part 10 so that the first grip part 10 may be spaced apart from the flat steel plate 2 by a predetermined interval so as to have a mutual height difference with respect to the second grip part 20. The fixing unit 50 may further include a fixing unit 50 for fixing the grip unit 10 in a state in which the grip unit 10 is moved upwardly from the first frame 100.

5 and 6, the elevating pipe 52 of the first grip part 10 penetrates the first frame 100 up and down. Therefore, the air injection unit 12 connected to one side of the elevating pipe 52 is positioned on the upper portion of the first frame 100 so as to be connected to the air injection device, and the adsorption plate connected to the other side of the elevating pipe 52 is a flat plate 2. ) To be located under the first frame 100.

In addition, a first fixing hole 53 is formed at an upper portion of the elevating pipe 52. In addition, the upper surface of the first frame 100 is provided adjacent to the elevating pipe 52, the fixing body 57 is formed with a second fixing hole 54 penetrated toward the elevating pipe (52). Then, the fixing member 55 is inserted into the second fixing hole 54 through the first fixing hole 53 to fix the elevating pipe 52. Here, the first fixing hole 53 corresponds to the second fixing hole 54 when the lifting pipe 52 is moved upward, and in this case, the fixing member 55 is formed through the second fixing hole 54. 1 As the fixing pipe 53 is inserted into the fixing hole 53 to fix the elevating pipe 52, the first grip part 10 is raised and fixed. Therefore, in order to grip the corrugated steel sheet 3 with the steel plate conveying apparatus 1 according to the present embodiment, the second grip portion 20 is lowered than the first grip portion 10, and the first grip portion 10 is lowered. By raising and fixing, it is possible to prevent the first grip part 10 from being disturbed when the corrugated steel sheet 3 is gripped.

In this embodiment, a screw line is formed in the first fixing hole 53 and the second fixing hole 54, and the fixing member 55 is formed in the first fixing hole 53 and the second fixing hole 54. A screw line corresponding to the formed screw line is formed, and by rotating it with a hexagon wrench, for example, the fixing member 55 is inserted into the first fixing hole 53. On the other hand, the fixing member is provided with a slide bar, etc., the first fixing hole 53 and the second fixing hole 54 may be formed as a hole into which the fixing member which is a sliding bar is inserted.

In addition, when the first grip part 10 is not fixed to the pressing member 51 by the fixing part 50, the fixing member 50 moves the suction plate 11 of the first grip part 10 to the first frame 100. It may further include a pressing member 51 for pressing downward in the). Here, the pressing member 51 may be provided with a spring or the like. Here, the lifting pipe 52 is formed with a projection 56 formed to be caught on the upper portion of the fixing body 57, so that the lifting pipe 52 is lowered by the elasticity of the pressing member 51 in the lower portion of the first frame 100. To prevent them from leaving. This prevents the lifting pipe 52 from being separated from the first frame 100.

Accordingly, when the corrugated steel sheet 3 is gripped, the first grip portion 10 is raised by a predetermined interval, and then the fixing member 55 is inserted into the first fixing hole 53 to fix the flat steel sheet 2. In the case of grip, when the fixing member 55 is separated from the first fixing hole 53, the pressing member 51 presses the first grip part 10 downward of the first frame 100 by the above-described process. The flat plate 2 can be gripped.

On the other hand, the fixing part 50a of the steel plate conveying apparatus 1 according to the second embodiment of the present invention may be provided as a hydraulic cylinder as shown in FIG.

Here, the first grip part 10 includes a suction plate 11, an air injection part 12, and a piston 52a. Here, the adsorption plate 11 and the air injection unit 12 is the same as the first embodiment, so description thereof will be omitted. In addition, one side of the piston 52a is connected to the air injection part 12 of the first grip part 10, and air is injected, and the other side is connected to the adsorption plate 11 of the first grip part 10, and the injected air is It includes a piston (52a) hollow inside to be injected into the suction plate (11).

In addition, the fixing part 50a provided with the hydraulic cylinder for raising and lowering the piston 52a is installed in the first frame 100. And the fixing part 50a is provided with the valve 54a which injects hydraulic oil so that it may be fixed by oil pressure after the piston 52a raises. Therefore, when the hydraulic pressure is injected into the space formed by the piston protrusion 53a by opening the valve 54a, the piston 52a rises as the piston protrusion 53a rises by hydraulic pressure, and the piston raised by closing the valve. 52a can be fixed. As a result, the suction plate 11 of the first grip part 10 also rises and is fixed along the rising piston 52a. Thus, when the corrugated steel sheet 3 is gripped in the first embodiment of the present invention, the same effect as that of the fixing part 50 can be obtained.

In addition, the fixing part 50a in this embodiment is provided with a single-acting cylinder which presses upwards to raise the piston 52a, and presses downwards so that the piston descends between the piston 52a and the suction plate 11. For example, it is provided that the pressing member for. Here, the single-acting cylinder is a well-known technique known to those skilled in the art, and since the pressing member 51 is the same as the first embodiment of the present invention, description thereof will be omitted.

Therefore, when the hydraulic oil in the inside of the fixing portion 50a is discharged through the valve 54a, the suction plate 11 of the first grip portion 10 is lower than the second grip portion 20 by the pressing member 51. Will be located. In addition, of course, the fixing unit 50 can be replaced by a pneumatic cylinder. Here, the pneumatic cylinder is the same as the hydraulic cylinder, but the difference between injecting air to pressurize, there is a difference, this is a known technique, detailed description thereof will be omitted.

On the other hand, the steel sheet conveying apparatus (1a) according to a third embodiment of the present invention further includes a watering device (60) as shown in Figs. The watering device 60 is a water supply device (not shown) for supplying water and a plurality of nozzles for spraying the water supplied from the water supply device to the surface of the flat plate (2) to be loaded in a first place to be gripped later (61). Here, the nozzle 61 is loaded at the first place when the first grip part 10 of the first frame 100 is moved to the second place after the flat plate 2 is lifted up to the moving position and then moved to the second place. As an example, it is installed in the first frame 100 to spray water on the surface of the flat steel plate (2). Here, the place where the nozzle 61 is installed is opposite to the direction in which the first frame 100 moves from the moving position to the second place on the left side, and is installed on the left side of the first frame 100 in FIG. 9. . In addition, it is preferable that the direction of the nozzle 61 faces the loaded flat steel plate 2. Accordingly, it is possible to solve the inconvenience of having to spray water manually by hand after gripping the flat steel plate 2 in the related art, thereby improving work efficiency.

On the other hand, as described above, the second and third embodiments according to the present invention replace the fixing parts 50 and 50a with hydraulic cylinders based on the first embodiment, or the watering device 60 is further described. It was. In addition, the present invention is not limited to the above-described embodiment, because mutual coupling between the additional components of the embodiments of the present invention is possible, such as adding a watering device 60 to the second embodiment of the present invention.

Although embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that the present invention may be modified without departing from the principles or spirit of the invention. . It is intended that the scope of the invention be defined by the claims appended hereto and their equivalents.

As described above, the suction type grips and transfers the flat steel plate, and the electronic type grips and transfers the corrugated steel sheet manufactured by wave shape so that the devices having different transfer functions are mounted on one moving part. All of the corrugated steel sheet can be gripped and transported, and when the flat steel sheet is gripped, there is an effect of providing a steel sheet conveying apparatus for injecting water to increase frictional force during bending.

Claims (7)

In the steel sheet conveying apparatus for transporting the flat steel plate and the corrugated steel sheet to the second place from the first place where at least one of the flat plate and the corrugated steel sheet having a waveform is loaded, At least one first grip portion for sucking and gripping the flat steel plate; At least one second grip portion for gripping the corrugated steel sheet by magnetic force; A grip position for gripping the flat steel plate or the corrugated steel plate loaded in the first place or the first grip part or the second grip part, and at least one of the first grip part and the second grip part is transferred to the second place; An elevating portion for elevating and moving at least one of the first grip portion and the second grip portion between the movement positions thereof; And a moving part for reciprocating between at least one of the first grip part and the second grip part between the moving position and the second place. The method of claim 1, A lifting frame provided with the first grip part and the second grip part to move up and down by the lifting part to move up and down between the grip position and the moving position; And a moving frame connected to the elevating frame and reciprocating by the moving unit to move the elevating frame between the moving position and the second place. The method of claim 2, The lifting frame may include a first frame having the first grip part installed and moving up and down by the lifting part; A second frame provided with the second grip part and connected to the first frame to move up and down with respect to the first frame; And a sub-elevating portion for elevating and moving the second frame with respect to the first frame such that the first grip portion and the second grip portion have mutual height differences. The method of claim 3, The first grip part is installed to be movable up and down in the first frame such that the first grip part and the second grip part have a mutual height difference; And a fixing part for fixing the first grip part in a state in which the second grip part is protruded downwardly from the first grip part in a state in which the second grip part is upwardly moved from the first frame. The method of claim 4, wherein The first grip part An adsorption plate for adsorbing the flat steel plate; An air injection unit for removing air in a space formed by the suction plate and the flat steel plate while the suction plate is in close contact with the flat steel plate at the grip position; It includes a hollow piston in communication with the air injection portion and the suction plate, The fixing part A single-acting cylinder accommodating the piston so as to be movable up and down; And a pressing member interposed between the suction plate and the first frame to press the suction plate downward of the first frame. The method of claim 4, wherein The first grip part An adsorption plate for adsorbing the flat steel plate; An air injection unit for removing air in a space formed by the suction plate and the flat steel plate while the suction plate is in close contact with the flat steel plate at the grip position; A hollow elevating pipe penetrating the first frame up and down and communicating the air injection portion and the suction plate; The fixing part At least one protrusion preventing the lifting pipe from being separated below the first frame; A fixing body installed adjacent to the elevating pipe on the upper surface of the first frame and having a second fixing hole penetrating toward the elevating pipe; A first fixing hole formed in the lifting pipe so as to communicate with the second fixing hole of the fixing body in a state in which the first grip part is moved upwardly; A fixing member which is inserted into the first fixing hole of the elevating pipe through the second fixing hole of the fixing body in a state in which the first grip portion is moved upwardly and fixes the first grip part; And a pressing member interposed between the suction plate and the first frame to press the suction plate downward of the first frame. The method according to any one of claims 2 to 6, And a sprinkling apparatus installed on the first frame to spray water onto the flat steel plate or the corrugated steel plate loaded in the first place on a path of the moving frame moving from the moving position to the second place. Steel sheet feeder characterized in that.

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