KR20030006143A - Tongs equipped with sensing apparatus of slab bending - Google Patents

Abstract

PURPOSE: Tongs having a slab bending detector are provided to prevent accidents from fall of a slab in gripping the slab wrong and breakage of equipments by displaying the bending direction and the bending clearance of a gripping slab in placing a supporting block on the slab. CONSTITUTION: Tongs transports a slab by gripping both sides of the slab with a tongs arm including a tongs protrusion, sets the number of slabs with placing on the slab, and has a supporting block(5) lifting up and down in rotating a screw. A slab bending detecting device has a holder part lifting up and down with the supporting block, an operating unit moving up and down the holder part, a detecting unit detecting bending of the slab according to electric resistance, and a PLC unit controlling calculation by receiving information and displaying. Breakage and accidents are prevented by detecting bending direction and clearance of the slab.

Description

TONGS EQUIPPED WITH SENSING APPARATUS OF SLAB BENDING}

The present invention relates to a cylinder having a slab bending sensing device, and more particularly, when the supporting block is seated on the top of the slab by recommending the cylinder to grip the slabs accumulated in the yard, the bending state (direction) of the slab and the bending The slab bending sensing device detects the play by the sensor and shows it on the display panel to prevent the safety accidents such as the slab from slipping and the slab slipping from the barrel and falling down. It's about a bucket.

FIG. 9 is a side view showing an operating state of a general barrel, and FIG. 10 is a schematic diagram showing a state when gripping a slab in which bending occurs.

In general, the tongs (T) is a facility that can hold 1 to 4 pieces of slabs (S) automatically by the supporting block (5), the supporting block (5) is installed in the tongs, the stroke is adjusted by the gear, The synchro detector 3 on the opposite side of the shaft senses the rotational speed of the motor 2 to set the number of slabs to be gripped.

When the tongs (T) are recommended and the supporting block (5) is seated on the top of the slab, the tong key inserted into the tongki groove base (4) is rotated and the locked state is released to grip the slab. It is inserted and rotated in the groove base 4 so that the tub can be removed from the slab, and the following operations can be performed.

When the hoist is recommended, the tongs arm (A) with the tongs jaw contracts and the slab is gripped to transport, distribute and charge the slabs.

However, slabs accumulated in the yard may bend upward or downward in accordance with ambient temperature changes and environmental changes occurring in the cooling process, and bending may also occur when depositing slabs having different lengths. Therefore, when transporting slabs, be sure to check the bulk and bending conditions of the slabs to be grasped visually and work safely.

However, when carrying and conveying the bending slab accumulated on a blind spot such as a bed under the cab, the transfer slab, the tongs jaw (J) is located and gripped on the top of the slab, In this case, there is a problem that a safety accident may occur when the slab gripped when the hoisting the slab is hoisted and moved out of the tongs jaw slips out.

The present invention has been made in order to solve the above problems, when the support block is seated on the top of the slab to recommend the tongs to hold the slab, automatically detects the bending direction and bending play of the slab to be held, display It is an object of the present invention to provide a canister with a slab bend sensing device that, by means of the panel, may incorrectly grip a bending slab to prevent a safety accident from falling of the slab from the canister.

1 is a partial perspective view of a cylinder having a slab bending detection device of the present invention,

Figure 2 is an exploded perspective view of the slab bending detection device of the present invention,

3 is a perspective view of the coupling of the slab bending detection device of the present invention,

4 is a cross-sectional view of the slab bending detection device of the present invention,

5a and 5b is a view showing a detection sensor used in the slab bending detection device of the present invention, Figure 5a is a perspective view, Figure 5b is an internal configuration,

6 is a side view showing an operating state of the barrel according to the present invention;

7 is a perspective view of the configuration of the slab bending detection device of the present invention,

8 is a front view showing an operating state of the barrel according to the present invention;

9 is a side view showing an operating state of a general container,

10 is a schematic view showing a state when gripping through a slab in which bending occurs.

<Description of Symbols for Major Parts of Drawings>

1: link 2: motor

3: Synchro Detector 4: Tonky Home Base

5: supporting block 6: shaft

7,7a: bevel gear 8,8a: bevel gear

10: screw 11: bevel gear

12: bearing 13: bevel gear

14: shaft 15: bevel gear

30: holder 31: casing

50: PIEL panel 51: display panel

52: warning light 60: detection sensor

61: spring 62: sensing rod

64: striker 65: roller

200,200a: Jaw holding position A: Tons arm

J: Tons Jaw S: Slavic

T: Tons

In order to achieve the above object, the present invention is to grip and transport both sides of the slab (S) by the tongs arm (A) provided with the tongs (J), and to set the number of the held slabs (S) In the tongs device having a supporting block (5) seated on the upper end surface of the slab (S), which is raised and lowered by the rotation of the screw driven by the upper bevel gear (8),

A vertical holder 30 installed in the frame of the tongs body on which the supporting block 5 is mounted, a casing 31 inserted into the holder 30 and having a heat-resistant cable 70 embedded therein, and the casing ( A holder part including a screw 10 fasteningly inserted into a nut part formed on an inner circumferential surface of the 31 and having a bevel gear 11 installed thereon;

A shaft having a bevel gear 15 meshing with the bevel gear 11 of the holder part, and a bevel gear 13 meshing with a bevel gear 8 for driving the supporting block 5 on the other side ( An operating unit configured to include 14);

The resistors are connected in series, and are inserted into grooves at the lower end of the casing 31 to be connected to the heat resistant cable 70 and inserted through the lower end of the casing 31 and the spring 61. Is provided with a restoring force, and has a striker 64 for changing the contact point of the resistance terminal of the sensing sensor 60, and in contact with the upper surface of the slab S by the roller 65 provided at the bottom. A sensing unit including a sensing rod 62 which is moved up and down;

The working condition is set, and connected to the heat-resistant cable 70 of the sensor 60 to calculate the current value according to the change of the resistance value, compare and analyze the information of the inputted program, and then compare the comparison value with the slab By having a Pelsi (PLC) panel 50 for converting to a bending value of a Pelsi portion comprising a display panel 51 connected to the Pelsi panel 50 and showing the set value and the output value , It is possible to detect the bending state of the slab to be gripped.

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

1 is a partial perspective view of a cylinder having a slab bending detection device of the present invention, Figure 2 is an exploded perspective view of the slab bending detection device of the present invention, Figure 3 is a perspective view of the slab bending detection device of the present invention, Figure 4 5A and 5B are cross-sectional views of the slab bending sensing device of the present invention, which illustrate a sensing sensor used in the slab bending sensing device of the present invention, FIG. 5A is a perspective view, FIG. 5B is an internal configuration diagram, and FIG. Fig. 7 is a perspective view showing the slab bending sensing device of the present invention, and Fig. 8 is a front view showing the operation state of the cylinder according to the present invention.

According to the present invention, a holder part having a built-in sensing device and being raised or lowered in the same way as the supporting block 5, an operating part for operating the holder part, a sensing part for sensing a bending state of the slab, and the detected information It is composed of a Pelci unit that receives the input, operation control and display.

The slab bending detection device of the present invention, the both sides of the slab (S) gripping with the tongs arm (A) provided with the barrel jaw (J) and transported, the slab (S) to set the number of slabs (S) to be gripped While seated on the upper end surface of the), it is installed in the tongs device provided with a supporting block (5) which is raised and lowered by the rotation of the screw driven by the upper bevel gear (8).

Of the main components of the present invention, the holder portion is a vertical holder 30 installed in the frame of the tongs body on which the supporting block 5 is mounted, and the heat-resistant cable 70 is inserted through the holder 30. It includes a built-in casing 31, and a screw 10 is fastened and inserted into the nut formed on the inner peripheral surface of the casing 31, the bevel gear 11 is installed on the upper portion. At this time, the casing 31 has a circular groove and a square groove formed at the lower end thereof, so that the sensing sensor 60 and the sensing rod 62 are installed at the lower portion thereof, and the bearing 16 and the bevel gear 11 are at the upper end thereof. It is provided so as to be smoothly driven to rotate.

The operation part includes a bevel gear 15 that meshes with the bevel gear 11 of the holder part on one side, and a bevel gear 13 that meshes with the bevel gear 8 for driving the supporting block 5 on the other side. It comprises a shaft 14 provided.

The sensing unit has a form in which resistors are connected in series, and is inserted into a square groove at the bottom of the casing 31 to be connected to the heat resistant cable 70 and a circular shape at the bottom of the casing 31. Is inserted into the groove is provided with a restoring force by the spring 61, and provided with a striker 64 for changing the contact of the resistance terminal of the sensor 60, the slab by the roller 65 provided at the bottom ( It is configured to include a sensing rod 62 is moved up and down when in contact with the upper surface of S). At this time, the roller 65 is fastened to the base by the bolt 66 and the nut 68 is installed on the lower end of the sensing rod (62).

The PLC unit, the work condition is set, is connected to the heat-resistant cable 70 of the sensor 60, calculates the current value according to the change in the resistance value and compare and analyze the information of the inputted program Then, the PSI panel 50 converts the comparison value into the bending value of the slab (the bending amount is converted into units of length), and the PSI panel 50 is connected to show the set value and the output value. It is configured to include a display panel (51).

The present invention is provided with a slab bending detection device having such a main component, it is possible to detect the bending state of the slab held in the thong device.

On the other hand, the present invention shows a configuration of a bending sensing device that is interlocked with one supporting block, but in the configuration of a general Tongs device, since two supporting blocks are configured to interoperate with each other, the two bending sensing devices are also It is preferably provided to be configured to interlock with each supporting block. In addition, since the two supporting blocks are each composed of a gear and a screw rotated in opposite directions because the driving force is transmitted from one driving source, the screw and the bevel gear constituting the bending sensing device of the present invention also rotate in each supporting block. It is preferable that the gears and the screws on both sides are configured to rotate in opposite directions to correspond to.

Hereinafter, the operation of the present invention configured as described above will be described.

When the work order is transmitted to the computer screen of the cab, the number of slabs to be gripped is displayed on the barrel control panel, and the difference between the current number of sheets and the number of slabs to be set is automatically recognized. ) Start in the forward or reverse direction.

The shaft 6 rotates through the sprocket coupled to the shaft of the motor 2 and the sprocket connected to the shaft, and the bevel gear and the bevel gear engaged with the tooth surface rotate differently. That is, the bevel gear 7 on one side (left) rotates in the same direction as the rotation direction of the shaft 6 and the bevel gear 7a on the other side (right) rotates in the opposite direction.

The bevel gears 8 and 8a coupled to the screw on which the supporting block 5 is installed are engaged with the tooth surfaces of the corresponding bevel gears 7 and 7a and rotated under rotational force. In this case, the number of slabs to be gripped is set while the screw is rotated and the supporting block 5 fastened thereto is raised or lowered.

By the above operation, the screw on the left side rotates in the right direction and the screw on the right side rotates in the left direction. The bevel gear 13 of the operating part of the present invention is engaged with the tooth surface of the bevel gear coupled to the screw fastening the supporting block 5, so that the opposite gear 15 also rotates at the same speed.

When the bevel gear 11 installed on the screw 10 on the left with the spiral machined to the right and the screw 10 on the right machined to the left rotate, the casing 31 moves up or down in the holder 30 and is supported. It operates in the same direction as the block 5.

When the barrel T is pushed down so that the barrel arm A is inserted into the slab S and the supporting block 5 rests on the upper end of the slab, the roller 65 of the sensing rod 62 moves to the supporting block 5. ) Is placed on the upper end of the slab, at which time the sensing rod 62 is contracted, and the contact of the resistance terminal of the sensing sensor 60, which is an insulator built into the groove of the casing 31, to the sensing rod 62. The striker 64 provided is to be changed.

Thereafter, the PSI panel 50 recognizes a change value of the resistance value of the sensing sensor 60 to obtain a current value, converts the value into a length value, and displays the number of holdings on the screen of the display panel 51. The number of set, the sensing distance of the sensor when holding the standard slab (the slab without bending) and the bending detection result (bending state, clearance) of the slab to be gripped are shown.

As a result, if the detected result is within the tolerance range, normal work is possible, so the work of transferring, distributing and charging the slab is continued. If it is out of the range, the warning lamp 52 is cleared and the circuit of the hist panel is removed. An interlock is set to control the hoisting speed to 1 notch. After that, the hoist is recommended to release the set interlock.

Such a cylinder provided with the slab bending sensing device of the present invention, when the supporting block is seated on the top of the slab by holding the tub to hold the slab, automatically detects the bending direction and the bending play of the slab to be held, the display panel As shown in FIG. 6, it is possible to prevent a safety accident in which a slab falls from a barrel by incorrectly holding a bending slab, and also provides an effect of preventing damage to a facility.

Claims (1)

Both sides of the slab S are gripped and transported by the tongs arm A having the tongs jaws J, and are mounted on the top surface of the slabs S to set the number of the held slabs S, but A tongs device comprising a supporting block (5) that rises and falls by a rotation of a screw driven by a bevel gear (8) of A vertical holder 30 installed in the frame of the tongs body on which the supporting block 5 is mounted, a casing 31 inserted into the holder 30 and having a heat-resistant cable 70 embedded therein, and the casing ( A holder part including a screw 10 fasteningly inserted into a nut part formed on an inner circumferential surface of the 31 and having a bevel gear 11 installed thereon; A shaft having a bevel gear 15 meshing with the bevel gear 11 of the holder part, and a bevel gear 13 meshing with a bevel gear 8 for driving the supporting block 5 on the other side ( An operating unit configured to include 14); The resistors are connected in series, and are inserted into grooves at the lower end of the casing 31 to be connected to the heat resistant cable 70 and inserted through the lower end of the casing 31 and the spring 61. Is provided with a restoring force, and has a striker 64 for changing the contact point of the resistance terminal of the sensing sensor 60, and in contact with the upper surface of the slab S by the roller 65 provided at the bottom. A sensing unit including a sensing rod 62 which is moved up and down; The working condition is set, and connected to the heat-resistant cable 70 of the sensor 60 to calculate the current value according to the change in the resistance value, compare and analyze the information of the inputted program, and then compare the comparison value with the slab It is gripped by having a PEL panel configured to include a PEL panel 50 for converting a bending value of the PEL panel and a display panel 51 connected to the P panel panel 50 to show the set value and the output value. A cylinder having a slab bending detection device, characterized in that the sensing state of the slab bending.