KR101372592B1 - Retracting and extending apparatus of bucking prevented devide - Google Patents

Abstract

An anti-buckling device and its withdrawal and withdrawal device are disclosed. Anti-buckling device according to an aspect of the present invention is a buckling prevention device inserted into the inner diameter portion of the product wound in a coil shape, a rotation shaft; A moving member spirally coupled to the rotating shaft to move on the rotating shaft in association with the rotation of the rotating shaft; A plurality of contact portions disposed to face each other through the movable member and the link member and to support the inner diameter portion of the product; Guide parts provided on both sides of the contact part to guide movement of the contact part; And a rotation support part provided at one side of the guide part and connected with a rotation means for applying a rotational force to the rotation shaft, wherein the drawing-in and withdrawal device of the buckling prevention device according to an aspect of the present invention is wound in a coil shape. The aforementioned anti-buckling device inserted into the inner diameter of the product to support the inner diameter of the product; And a loader / unloader connected to the rotational support of the buckling prevention device to draw or pull the buckling prevention device into the inner diameter of the product and to provide rotational force to the rotating shaft so that the contact portion expands or contracts.

Description

Anti-buckling device and its retracting and withdrawing device {RETRACTING AND EXTENDING APPARATUS OF BUCKING PREVENTED DEVIDE}

The present invention relates to a draw-in and draw-out device of the buckling prevention device, and more particularly, to the buckling prevention device provided to prevent the buckling of the product wound in the form of a coil in the hot rolling process, etc. into the central portion of the product, and buckling A buckling prevention device and a pulling-in and drawing-out device thereof, wherein the prevention device is inflated in a state of being inserted into a product to provide a supporting force.

In general, it is required to improve the strength of the steel sheet used in accordance with the development of the industry, and accordingly, precipitation hardening or solid solution strengthening methods are used to improve the strength of the steel sheet.

As such, a representative industry using steel sheets is the automotive industry. In order to cope with safety, fuel economy, environmental regulations, and the like, a high strength steel having a high thickness and a thin thickness is required.

Accordingly, in recent years, high-strength steel such as Advanced High Strength Steel (AHSS), which has improved strength by using a transformation structure of steel, for example, Advanced High Strength Steel (AHSS), has been continuously increased.

After the hot rolling, the AHSS runs on a run out table, which is a high-speed cooling section, and undergoes a transformation while being cooled by the amount of water set according to a target coiling temperature.

However, most of the AHSS transformation process is not completed on the run-out table, the transformation process is completed in the state that is wound on the coil strip in the winder and loaded on the cooling yard.

In addition, the coil strip reacts sensitively to temperature and is accompanied by volume expansion during winding or cooling in the cooling yard and in the process of transformation. Accordingly, a gap is generated between the layers on which the strip is wound during the volume expansion process, and thus, the coil strip does not endure the weight of the coil strip, and there is a problem in that deformation (buckling) occurs in the radial direction.

That is, buckling is a phenomenon in which the coil is distorted in the radial direction due to the transformation force of the steel. When the coil is deformed in the radial direction, it becomes a factor that makes it impossible to perform normal work in a post process such as hot rolling and cold rolling. This leads to a lot of losses in terms of productivity and error rate.

Accordingly, conventional cooling is further performed during or after winding of the coil strip. As an example, a method of rotating the idling without supplying the cooling water to the coil strip or pulling the coil strip immediately after winding is utilized, but as the additional cooling proceeds, it becomes a factor that lowers the hot rolling productivity of the coil strip. have.

In addition to such additional cooling, a method of preventing buckling by applying high temperature winding and low temperature winding according to the winding temperature range is also utilized. In other words, steel grades with high coiling temperature increase the coiling temperature more than the design value to delay the transformation point, and steel grades with low coiling temperature lower the coiling temperature than the design value to complete the transformation on the runout table.

However, this method has to derive the exact mechanism for each steel type separately, and it is not easy to work because it needs to reset the winding temperature for each steel type, and the productivity decrease and the production of dummy products in the process of resetting the winding temperature according to the steel type. Unnecessary waste caused by the situation is occurring. In addition, in the past, it was difficult to quickly respond to a new steel grade due to the limitation of the winding temperature according to the steel grade.

Accordingly, the same applies to all steel grades, and development of a buckling prevention device for improving reliability of productivity and quality of a product and development of a technology for drawing or drawing such a buckling prevention device into a product are required. .

An embodiment of the present invention automatically inserts a buckling prevention device for preventing buckling on the conveyor belt or when the coil is withdrawn from the winding machine in the hot rolled winding process, and automatically pulls out the buckling preventing device when the transformation is completed. It is an object of the present invention to provide a buckling preventing device and a drawing and withdrawing device thereof.

Anti-buckling device according to an aspect of the present invention is a buckling prevention device inserted into the inner diameter portion of the product wound in a coil shape, a rotation shaft; A moving member spirally coupled to the rotating shaft to move on the rotating shaft in association with the rotation of the rotating shaft; A plurality of contact portions disposed to face each other through the movable member and the link member and to support the inner diameter of the product; Guide parts provided on both sides of the contact part to guide movement of the contact part; And a rotation support part provided at one side of the guide part, the rotation support part being connected to a rotation means for applying a rotational force to the rotation shaft, wherein the rotation support part is provided on a center line of the guide part, and in one direction, in the axial direction. It protrudes, and includes a first connection portion provided with at least one first uneven portion, and a second connection portion disposed on the axis of the rotation axis to rotate in connection with the rotation axis.

delete

In addition, the second connecting portion may have a polyhedron with an outer circumferential surface thereof.

In addition, the pull-out and withdrawal device of the buckling preventing device according to an aspect of the present invention is the above-described anti-buckling device inserted into the inner diameter of the product to support the inner diameter of the coiled product; And a loader / unloader connected to the rotational support of the buckling prevention device to draw or pull the buckling prevention device into the inner diameter of the product and to provide rotational force to the rotating shaft so that the contact portion expands or contracts.

Here, the loader / unloader may include a chuck assembly coupled to rotate and rotate the rotation support and a moving unit for moving the chuck assembly.

In addition, the chuck assembly includes a housing, a plurality of clamp jaws provided in the housing to move in a radial direction of the rotational support and bite to the outer circumferential surface of the rotational support, a jaw cylinder for moving the clamp jaw, and the clamp jaw to support the rotational support. It may include a housing rotating part for rotating the housing to correct the bite position of the rotational connection, and a rotational connection provided to be coupled to the rotating shaft in the front of the housing to transmit the rotational force.

In addition, the rotation support portion is a disk rotation portion associated with the rotating shaft, a first connection portion protruding in the axial direction from one side of the disk rotation portion, provided with at least one first uneven portion, and a second connected to the axis of the rotating shaft and provided with a polygon It includes a connecting portion, the housing rotating portion may be provided on the front surface of the housing and provided on the outer peripheral surface of the first concave portion and the second concave portion corresponding to the first concave portion, and a rotation motor for rotating the disc rotating body .

In addition, the rotary connector may include an axial rotary body provided on the axis of the disc rotating body and provided with a groove corresponding to the second connecting unit, and an axial rotating motor connected to rotate the axial rotating body.

In addition, the chuck assembly may further include a proximity sensor for measuring proximity to the rotational support of the buckling prevention device.

The moving unit may include a shaft for guiding the movement of the chuck assembly, a cylinder for moving the chuck assembly along the shaft, and a cam follower for guiding the movement of the chuck assembly.

According to an embodiment of the present invention, the buckling prevention device inserted into the inner diameter portion of the coil wound in the hot rolling process can be easily introduced or drawn out to support the coil, there is an effect that can prevent the buckling of the coil In addition, workability can be improved when the buckling prevention device is pulled in or pulled out.

In addition, the present invention can improve the hot rolling productivity by releasing the set weight due to the buckling in the hot rolling process, it is possible to set the flexible hot rolling operation conditions according to the steel grade can reduce the material deviation for the steel grade. In addition, it is possible to prevent the occurrence of buckling in the future development of new steel grades without resetting the temperature conditions or cooling conditions after winding, it is possible to prevent the occurrence of production constraints due to the development of new steel grades.

In addition, it is possible to reduce the longitudinal and width direction material deviation after the hot rolling during the cold rolling, it is possible to significantly improve the shape quality as well as cold rolling productivity by improving the cold rolling speed.

1 is a perspective view of a buckling prevention apparatus according to an embodiment of the present invention.
Figure 2 is a side view of the buckling preventing apparatus according to an embodiment of the invention.
3 is a cross-sectional view of the buckling preventing apparatus according to an embodiment of the present invention.
Figure 4 is a side view showing a pull-out and withdrawal device of the buckling preventing apparatus according to an embodiment of the present invention.
Figure 5 is an enlarged perspective view of the chuck assembly of the pull-out and withdrawal device of the buckling prevention apparatus according to an embodiment of the present invention.
6 is a partially cutaway perspective view illustrating the chuck assembly of the pull-out and take-out device of the buckling prevention apparatus according to an embodiment of the present invention.
7 is a perspective view showing a state in which the chuck assembly is coupled to the pull-out and withdrawal device of the buckling prevention apparatus according to an embodiment of the present invention.
8 to 11 is an operational state diagram of the draw-in and take-out device of the buckling prevention apparatus according to an embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. The shape and the size of the elements in the drawings may be exaggerated for clarity and the same elements are denoted by the same reference numerals in the drawings.

1 is a perspective view of a buckling prevention apparatus according to an embodiment of the present invention, Figure 2 is a side view of the buckling preventing apparatus according to an embodiment of the invention, Figure 3 is a cross-sectional view of the buckling preventing apparatus according to an embodiment of the invention to be.

1 to 3, the buckling preventing device 100 of the present embodiment is a device for preventing the deformation in the radial direction of the product is inserted into the inner diameter of the coiled product wound. Here, the product wound in a coil form may typically include a hot rolled coil.

The buckling preventing device 100 is provided to support the coil inner diameter in the state inserted into the inner diameter of the hot rolled coil manufactured in the coil form in the hot rolling process, etc., thereby preventing buckling that may occur in the coil.

That is, the coil wound in the hot rolling process is transformed by cooling before winding, and cooling is progressing in the state which does not have the required rigidity as it is wound in the state which transformation is not completed. Accordingly, as the hot rolled coil is cooled in a wound state, gaps are generated between strip layers of the coils, and buckling may occur due to such gaps and self-weight.

Therefore, after the hot rolled coil is separated from the winding machine, the buckling preventing device 100 of the present embodiment is inserted at an appropriate position of the coil inner diameter at an appropriate time point, and the elastic pressing unit 130 is provided until the hot rolled coil has sufficient strength by cooling. By the elastic force provided by the plurality of contacts 150 to support the inner diameter of the coil and to provide a brace can prevent buckling.

The anti-buckling device 100 is inserted into the inner diameter of the hot rolled coil, it may include a rotating shaft 110 located in the center thereof. Threads may be formed on the outer circumferential surface of the rotating shaft 110.

In addition, the rotating shaft 110 may be associated with a moving member 132 that is spirally coupled to the rotating shaft 110. The moving member 132 may be provided to move on the rotation shaft 110 in association with the rotation of the rotation shaft 110.

In addition, a plurality of contact portions 150 are disposed to face each other at the inner diameter portion of the hot rolled coil, and the contact portions 150 may be provided to support the inner diameter portion of the hot rolled coil via the link member 130.

For example, the contact portion 150 is connected to the moving member 132 via the link member 135, the link member 135 is expanded as the moving member 132 is moved by the rotation of the rotary shaft 110, the contact portion ( 150) may be in close contact with the inner diameter of the smoke coil and provide a support force.

In addition, the buckling prevention apparatus 100 may include a guide portion 160 for guiding the moving direction of the contact portion 150 in the process of moving the contact portion 150 in close contact with the inner diameter portion.

In addition, the buckling prevention apparatus 100 is supplied with a rotational force for rotating the rotating shaft 110 from the rotating means provided to the outside, for this purpose to apply a rotating force to the rotating shaft 110 on one side of the guide portion 160 Rotational support 170 to which the rotation means is linked may be provided.

Here, the rotation shaft 110 may serve to move the moving member 132 at a predetermined interval by rotation. To this end, a screw thread may be formed on the outer circumferential surface of the rotating shaft 110 for helical coupling with the moving member 132.

In addition, the rotation shaft 110 may be connected to the rotation shaft connecting member 167 of the guide unit 160 to support rotation. In addition, the rotating shaft connecting member 167 may be provided with a bearing for smooth rotation.

In addition, the rotation shaft 110 is provided at one end of the split shafts 110a and 110b so as to be associated with the same number of split shafts 110a and 110b and the respective split shafts 110a and 110b. It may include a joint member (110c) provided.

The rotating shaft 110 is connected to the joint member 110c in a state in which the moving member 132 is coupled to and maintained at equal intervals on each of the split shafts 110a and 110b, thereby maintaining a constant interval of the moving member 132. And it can be coupled to the guide portion 160.

That is, each moving member 132 should be located on the rotating shaft 110 so that the contact portion 150 can be spaced apart from the rotating shaft 110 by the same interval. To this end, it is preferable to adjust the contact portions 150 to be spaced apart at equal intervals from the rotation shaft 110 after each moving member 132 is coupled to each of the divided shafts 110a and 110b. This is because the moving member 132 should be spaced at the same interval, but because the contact portion 150 associated with the moving member 132 through the link member 135 is horizontal and can be moved in close contact with the inner diameter surface of the coil. to be.

In addition, the rotating shaft 110 includes a joint member 110c provided at one end of the split shafts 110a and 110b, thereby connecting the respective split shafts 110a and 110b. As a result, each of the divided shafts 110a and 110b may be coupled after moving the respective moving members 132 on the divided shafts 110a and 110b at a predetermined interval by individual rotation.

In addition, after the split shafts 110a and 110b are coupled, the movable members 132 may be moved at the same interval.

The moving member 132 moves on the rotating shaft 110 to serve to closely contact the contact portion 150 connected through the link member 135 to the inner diameter surface of the coil. To this end, the movable member 132 may be screwed with the rotary shaft 110.

In addition, the moving member 132 may include a moving hole member 133 connected to the link member 135 and a nut hole member 134 provided to the moving hole member 133. The moving hole member 133 may be connected to the link member 135 by a connection member such as a pin.

The moving hole member 133 may freely move on the rotating shaft 110 without being screwed with the rotating shaft 110. The moving hole member 133 is connected to the link member 135 by a pin or the like, and moves up and down according to the movement of the nut hole member 134 and raises and lowers the contact portion 150 connected to the link member 135. The moving hole member 133 may be formed with a support rod coupling hole to which the support rod 115 to be described later can be coupled.

The nut hole member 134 is screwed with the rotation shaft 110, and may move in a predetermined direction along the rotation direction of the rotation shaft 110. As a result, the movable hole member 133 connected to the nut hole member 134 is moved. By separately configuring the nut hole member 134 screwed with the rotating shaft 110 with the movable hole member 133 connected with the link member 135, there is an advantage of facilitating the replacement of the components resulting from wear of the screw coupling. Can provide.

That is, the moving hole member 133 connected to the link member 135 should be separated from the link member 135 for replacement, and at this time, the contact portion 150 connected to the link member 135 cannot be supported so that the moving hole member ( 133) is difficult to separate. In addition, in order to reassemble the movable hole member 133 with the link member 135, a structure for supporting the contact part 150 is required, and thus, the reassembly of the movable hole member 133 is difficult. On the other hand, the separation and assembly of the nut hole member 134 is easier than the replacement of the moving hole member 133 is not affected by the contact portion 150. Therefore, by fitting the nut hole member 134 with the rotating shaft 110 in a spiral manner, a part in which wear occurs may be limited to the nut hole member 134, thereby replacing a part due to wear with the rotating shaft 110. It can be done easily.

On the other hand, the shape of the thread formed in the nut hole member 134 may be formed along the direction of movement on the rotation shaft (110). That is, a screw thread is formed in the rotation shaft 110 in a clockwise direction, and when the nut shaft member 134 is advanced on the rotation shaft 110 when the rotation shaft 110 is rotated in the clockwise direction, the nut hole member 134 is connected to the nut hole member 134. In the case of forming the screw thread in the clockwise direction and conversely, when rotating the nut 110 in the clockwise direction, the nut hole member 134 is reversed. It can be formed.

In addition, the buckling preventing apparatus 100 of the present embodiment may further include a support rod 115 associated with the moving hole member 133 to prevent the moving member 132 from rotating to move on the rotation shaft 110. Thereby, the contact part 150 can be prevented from being bent by torsion. That is, the support rod 115 can also prevent the torsion occurs in the contact portion 150, like the guide portion 160.

In addition, since the rotation shaft 110 has a smaller diameter than the contact portion 150, the rotation shaft 110 may be structurally unstable to support the contact portion 150 by only the rotation shaft 110. It is possible to secure the straightness of the rotary shaft 110 by increasing the stability.

To this end, the support rod 115 may pass through the support rod coupling hole of the moving hole member 133. As a result, the moving hole member 133 may move along the supporting rod 115. That is, the moving hole member 133 may move along the support shaft 115 while simultaneously moving along the rotation shaft 110.

The link member 135 connects the moving member 132 and the contact part 150 to serve to close the contact part 150 to the inner diameter surface of the coil or to release the close contact state according to the movement of the moving member 132. . To this end, one end of the link member 135 is coupled to the movable member 132 by a pin, etc., the other end of the contact portion 150 may be coupled by a pin or the like. In addition, in order to improve durability against the force applied to the link member 135, a support plate may be formed on the link member 135. That is, the cross-sectional shape of the link member 135 may be formed in the 'H' shape or the like.

The contact part 150 is inserted into the inner diameter portion of the coil to closely contact the inner diameter surface of the coil and serves to push the inner diameter surface of the coil. As a result, even if a gap occurs due to transformation due to cooling between the strips of the coil, the contact part 150 can prevent the buckling of the coil by pushing the coil inner diameter to suppress the occurrence of the gap.

In addition, the contact portion 150 is preferably provided in a curved shape in order to increase the contact area with the inner diameter surface. For example, the cross section of the contact portion 150 may have an arc shape.

The contact portion 150 may be a combination of divided surfaces having an arc cross section. That is, the contact unit 150 may provide a plurality of divided surfaces as well as three or four divided surfaces in contact with the inner diameter surface of the coil. Accordingly, the link member 135 associated with the divided surface is also preferably provided to correspond to the number of divided surfaces.

The guide part 160 serves to guide the contact part 150 to move in a predetermined direction. As a result, when the contact unit 150 moves in close contact with the coil inner diameter surface in connection with the movement of the moving member 132, the contact unit 150 may be prevented from twisting or the contact unit 150 is rotated.

Here, the moving member 132 linked to the contact portion 150 through the link member 135, when the rotating shaft 110 rotates, must not rotate to move on the rotating shaft 110 according to the rotation of the rotating shaft 110. Can be. By the way, the frictional force may be generated in the screw coupling portion of the rotating shaft 110 and the moving member 132, the frictional force may be further increased by the force to buckling the coil. Therefore, a case in which the moving member 132 rotates along the rotating shaft 110 by the friction force may occur.

In this case, the contact unit 150 may be connected to the moving member 132 through the link member 135 so that the moving member 132 may receive a force to rotate. However, since the force received by the contact portion 150 from the movable member 132 may vary depending on the magnitude of the friction force acting on the movable member 132, the contact portion 150 connected to the link member 135 by a pin or the like may be used. May vary from part to part. Therefore, the contact portion 150 is to be able to receive the twisting force.

However, the buckling preventing device 100 of the present embodiment provides the guide portion 160 on both sides of the contact portion 150, thereby preventing the contact portion 150 from being twisted by a force acting unevenly on the contact portion 150. It will be possible.

To this end, the guide portion 160 of the buckling preventing apparatus 100 for hot rolled coils according to the present embodiment may include a first guide portion 161 and a second guide portion 165.

In addition, the first guide portion 161 may be provided with a support plate 161a for structural stability in response to the torsional force acting on the contact portion 150 through the link member 135.

In addition, the first guide part 161 may be provided at both sides of the contact part 150, and the guide groove 162 may be formed in the first guide part 161 in a direction in which the contact part 150 moves, that is, in a radial direction. have.

Accordingly, the contact unit 150 may move in the radial direction of the rotation shaft 110 at the shortest distance to the inner diameter surface of the coil during expansion and movement, and at the same time, to prevent the occurrence of the torsion in the contact unit 150 as described above. There is an advantage.

For example, in the present embodiment, the guide groove 162 is described as being provided as one, but the shape and number of the guide groove 162 is not limited to the present embodiment and may be modified in various forms, for example, the guide groove 162 It is also possible to provide a plurality in the radial direction.

In addition, the second guide part 165 may be connected to both sides of the rotation shaft 110. A guide tab 166 is formed in the second guide part 165 to be inserted into the guide groove 162, and the first guide part 162 is moved as the guide tab 166 moves in the inserted state in the guide groove 162. ) And the second guide portion 165 is guided and the length may be adjusted.

In addition, since the second guide part 165 may have a guide tab 166 in a shape that can be guided in the guide groove 162, the cross-sectional shape of the guide tab 166 may be a guide groove 162. It is preferable to make the shape corresponding to the shape of the cross section of (). In addition, the guide tab 166 may have a shape corresponding to the reverse rotation preventing groove 164 in order to be inserted into the reverse rotation preventing groove 164 described later.

One end of the guide groove 162 in the buckling preventing device 100 of the present embodiment may be linked to the reverse rotation preventing groove 164 formed in the circumferential direction of the rotation shaft 110.

The guide tab 166 inserted into the guide groove 162 moves in the radial direction according to the expansion movement of the contact portion 150 and the guide portion 160, and the reverse rotation is connected to one end of the guide groove 162 in the expanded state. As the insertion groove 164 is inserted, the contact state of the contact portion 150 in close contact with the inner diameter surface of the coil may be prevented from being unexpectedly released by the reverse rotation of the rotation shaft 110.

The guide groove 162 guides the contact part 150 connected to the arm guide part 160 material in a predetermined direction and serves to closely contact the inner diameter surface of the coil.

In addition, since the guide groove 162 is preferably formed in the direction in which the contact portion 150 moves, it is preferable that the guide groove 162 is formed in the direction of the rotation shaft 110. As a result, the contact unit 150 may move at the shortest distance for contacting the inner diameter surface of the coil.

On the other hand, the reverse rotation prevention groove 164 serves to prevent the rotation shaft 110 is unexpectedly rotated. That is, the rotating shaft 110 is in close contact with the inner surface of the coil contact portion 150 associated with the moving member 132 and the link member 135 by the rotation, by the force acting on the contact surface, the contact portion ( 150 is pushed in the direction opposite to the direction in close contact with the inner diameter surface of the coil. At this time, the rotating shaft 110 is also affected via the link member 135 and the moving member 132 to be reversely rotated. That is, the contact state between the contact portion 150 and the coil inner diameter surface can be released unexpectedly. However, in the present invention, it is possible to prevent the reverse rotation of the rotation shaft 110 by providing a reverse rotation prevention groove 164 formed in the circumferential direction of the rotation shaft 110.

The reverse rotation preventing groove 164 is connected to the guide groove 162 in the circumferential direction of the rotation shaft 110, a plurality may be formed. This is because the position of the reverse rotation preventing groove 164 into which the guide tab 166 can be inserted varies according to the inner diameter of the coil.

In addition, the reverse rotation preventing groove 164 is preferably formed of a reverse rotation prevention groove 164 in an arc shape, accordingly, the guide tab 166 smoothly rotates in conjunction with the rotation of the second guide portion 165. And can be inserted.

Meanwhile, the rotation support unit 170 may include a disc bleeding unit 172 provided on the center line of the guide unit 160. In addition, one side of the disc bleeding portion 172 may be provided with a first connecting portion 174 protruding in the axial direction. Preferably, the first connector 174 may protrude axially from the circumference of the outer surface of the disc bleeding portion 172. In addition, the first connector 174 may be provided with at least one first uneven portion 175.

When the first uneven portion 175 is coupled to the rotating means for applying the rotational force to the rotating shaft 110, which will be described later, it is provided to determine the engagement direction and position as engaged with the second uneven portion provided in the rotating means Can be.

In addition, on the axis of the rotary shaft 110 may be provided with a second connecting portion 176 that rotates in connection with the rotary shaft 110. Here, the rotating shaft 110 extends through the guide portion 160 and the disc bleeding portion 172, the second connecting portion 176 is provided at the end of the extended rotating shaft 110 to rotate together with the rotating shaft 110 can do.

Here, the second connection portion 176 is provided to transmit the rotational force to the rotating shaft 110 in connection with the rotation means, the outer peripheral surface may be provided as a polygon to facilitate the transmission of the rotational force.

The buckling preventing device 100 configured as described above may provide a support force in the process of cooling the hot rolled coil in a state of being inserted into a coil unit such as a hot rolled coil. On the other hand, when the cooling of the hot rolled coil is completed, the buckling preventing device 100 must be separated for the post-process, and the separated buckling preventing device 100 is inserted into another hot rolled coil to prevent buckling in the cooling process. Will be performed repeatedly.

To this end, the present embodiment may include a draw-in and take-out device of the buckling preventing device 100 for inserting or separating the buckling preventing device 100 in the hot rolled coil to recycle.

4 is a side view illustrating a drawing-in and drawing-out device of the buckling preventing apparatus according to an embodiment of the present invention. 5 is an enlarged perspective view of the chuck assembly of the pull-in and pull-out device of the buckling prevention apparatus according to an embodiment of the present invention, Figure 6 is a pull-in and withdrawal of the buckling prevention apparatus according to an embodiment of the present invention A partially cutaway perspective view of the chuck assembly of the device. In addition, Figure 7 is a perspective view showing a state in which the chuck assembly is coupled to the pull-out and withdrawal device of the buckling prevention apparatus according to an embodiment of the present invention.

4 to 7, the drawing-out and withdrawal device 10 of the buckling prevention device includes the aforementioned buckling prevention device 100 inserted into the inner diameter part of the hot rolled coil and the buckling preventing jig into the inner diameter of the connecting coil. Alternatively, the loader may include a loader / unloader 200 that expands or contracts the contact unit 150 by providing rotational force to the rotating shaft 110.

Here, the loader / unloader 200 may be linked to the rotation support unit 170 of the buckling prevention apparatus 100.

To this end, the loader / unloader 200 bites and fixes the rotational support 170 and the chuck assembly 210 which is associated to rotate the rotary shaft 110, and the moving unit 250 which moves the chuck assembly 210. It may include.

In this embodiment, the moving part 250 may include a shaft 252 for guiding the movement of the chuck assembly 210. In addition, the moving unit 250 may include a cylinder 254 that provides a moving force for the chuck assembly 210 to move along the shaft 252.

As the cylinder 254 is stretched in a fixed state on one side of the shaft 252, the chuck assembly 210 may be linked to move along the shaft 252.

In addition, the moving unit 250 may include a cam follower 256 for guiding the movement of the chuck assembly 210. The cam follower 256 is provided with a bearing to smoothly guide the movement of the chuck assembly 210.

In this embodiment, the chuck assembly 210 may include a housing 212 forming an appearance. In addition, the housing 212 may be provided with a plurality of clamp jaws 220 moving in the radial direction of the rotation support 170. The clamp jaw 220 is bitten and fixed to the outer circumferential surface of the rotation support part 170, thereby fixing and moving the buckling preventing device 100 to the chuck assembly 210.

In addition, the jaw cylinder 222 is coupled to the chuck assembly 210 to clamp the jaw 220 bites the outer circumferential surface of the rotary support 170, and moves the clamp jaw 220 to release the fixing force when necessary. Can be provided.

Although the clamp jaw 220 is described as being moved by the jaw cylinder 222 in this embodiment, the means for providing the movement and fixing force of the clamp jaw 220 is not limited thereto and may be modified in various embodiments. .

On the other hand, the buckling prevention device 100 may move the position in the waiting process before being inserted into the hot rolled coil, accordingly, the chuck assembly 210, the clamp jaw 220 corrects the bite position of the rotation support portion 170 Housing rotation (not shown) may be associated to rotate the housing 212 to prevent it. Although the housing rotating part is not shown in the present embodiment, it may of course include driving means for rotating the housing as a whole by a motor or the like.

In addition, the front surface of the housing 212 may be provided with a rotary connecting portion 230 that is coupled to the transmission shaft when the clamp jaw 220 is engaged with the rotating shaft 110 when fixing the rotation support 170.

The rotary connection 230 may include a disk rotating body 232 provided on the front of the housing 212. In addition, a second uneven portion 233 may be provided on an outer circumferential surface of the disc rotating body 232.

The second concave-convex portion 233 corresponds to the first concave-convex portion 175 of the first connection portion 174 provided in the disc bleed portion 172 in the process of coupling the buckling preventing device 100 to the chuck assembly 210. In this case, the first concave-convex portion 175 and the second concave-convex portion 233 may be engaged with each other and the coupling position may be corrected.

To this end, the housing rotating unit may include a rotating motor for rotating the disc rotating body (232).

That is, the housing rotating part rotates the disc rotating body 232 as power is applied to the rotating motor, and in this process, the second uneven part 233 of the disc rotating body 232 is the disc bleeding part 172. The engagement position of the buckling preventing device 100 can be adjusted by clamping the clamp jaw 220 to the outer circumferential surface of the disc rotating body 232 in a state of being engaged with the first uneven portion 175 of FIG.

In addition, the rotary motor may be directly connected on the central axis of the disc rotating body 232, and may be preferably connected to transmit the rotational force through another rotational transmission member or the like.

For example, in the present embodiment, the rotation motor may be provided such that the gear coupled to the rotating shaft 110 of the motor and the gear coupled to the disc rotating body 232 are engaged with each other and transmit a driving force. At this time, the worm screw is coupled to the rotating shaft 110 of the motor, the gear coupled to the disc rotating body 232 may be provided as a worm gear.

In addition, a pulley or a sprocket may be provided on an axis of the rotating shaft 110 and the disc rotating body 232 of the rotating motor, respectively, and may be provided so that rotational force is transmitted by a belt or chain connected between the pulleys or sprockets. Do.

In addition, in the present embodiment, the rotary connector 230 may be provided on the axis of the disc rotating body 232. In addition, the rotary connector 230 may include a shaft rotating body 234 having a groove 235 corresponding to the second connector 176 associated with the rotary shaft 110.

That is, while the chuck assembly 210 is coupled with the buckling preventing device 100, the second connecting portion 176 may be inserted into and coupled to the groove 235 of the shaft rotating body 234. At this time, the groove portion 235 of the shaft rotating body 234 is made of a polygonal groove corresponding to the second connecting portion 176, the rotating shaft 110 associated with the second connecting portion 176 as the shaft rotating body 234 is rotated. ) Can be rotated.

To this end, the rotary connector 230 may be provided with an axial rotation motor that is linked to rotate the axial rotation body 234.

For example, in the present embodiment, the axial rotation motor may include a hydraulic motor, and the rotation shaft 110 of the axial rotation motor may be directly connected to the axial rotation body 234 to transmit a rotational force.

On the other hand, in this embodiment, the connecting structure of the axial rotation body 234 and the axial rotation motor is not limited, and may be provided to transmit the rotational force by various embodiments, the axial rotation body 234 and the axial rotation motor is a rotary connection ( 230) it is also possible to be provided to be connected to transmit the rotational force via the material or the like.

In addition, the loader / unloader 200 may further include a proximity sensor 240 for measuring whether the chuck assembly 210 is close when coupled to the rotation support 170 of the buckling preventing device 100.

The proximity sensor 240 determines whether the rotation support unit 170, that is, the disc bleeding unit 172 is close, and rotates the rotating motor according to the recognition of the proximity signal, the first uneven portion 175 and the second unevenness The portion 233 may be engaged to be positioned at the correct coupling position.

For example, the proximity sensor 240 may be provided on one side of the chuck assembly 210, and preferably, the proximity sensor 240 may be provided in plurality on one side of the rotating disc body and the second uneven portion 233. At least these proximity sensors 240 may be provided symmetrically about the central axis.

That is, in the present embodiment, four proximity sensors 240: 240a, 240b, 240c, and 240d may be provided, and two of the two proximity sensors 240a and 240c are symmetrically positioned with respect to the central axis. The other two proximity sensors 240b and 240d may be provided to the disc rotator 232 symmetrically positioned about the central axis.

At this time, when the rotation support portion 170 of the buckling preventing device 100 and the chuck assembly 210 of the loader / unloader 200 are close to each other, only two proximity sensors 240a, which are provided to the second uneven portion 233, When 240c detects the proximity and the other two proximity sensors 240b and 240d do not sense the proximity, the disc rotator 172 of the buckling prevention device 100 and the disc rotating body of the chuck assembly 210. It can be determined that 232 is not located at the correct position.

Accordingly, the chuck assembly 210 rotates the disc rotating body 232 by operating the rotary motor, and measures proximity from all proximity sensors 240a, 240b, 240c, and 240d. When the proximity recognition is made to all proximity sensors, the first uneven portion 175 of the disc chuck 172 and the second uneven portion 233 of the disc rotating body 232 are moved by moving the chuck assembly 210. In close contact with each other, the jaw cylinder 222 may be operated to allow the clamp jaw 220 to fix the disc grip portion 172 of the rotary support 170.

Therefore, in the present embodiment, the chuck assembly 210 of the loader / unloader 200 may be coupled to the rotation support portion 170 of the buckling prevention apparatus 100 at the correct position, thereby providing the buckling prevention apparatus 100. It can be inserted at the correct position of the inner diameter of the hot rolled coil.

8 to 11 are operation state diagrams of the draw-in and take-out device of the buckling preventing apparatus according to an embodiment of the present invention.

Referring to FIG. 8, in the pull-out and withdrawal device 10, the buckling prevention device 100 may be bitten fixed to the chuck assembly 210.

In addition, the loader / unloader 200 moves the chuck assembly 210 as shown in FIG. 9 while the buckling prevention device 100 is coupled to the chuck assembly 210 to move the buckling prevention device 100. It can be inserted into the inner diameter part 1a of the hot rolled coil 1.

At this time, the hot rolled coil 1 is separated from the winding machine 2, and at the same time, the buckling preventing device 100 is connected to the inner diameter portion 1a of the hot rolled coil 1 by the drawing-in and drawing-out device 10 of the present embodiment. ) Can be inserted.

To this end, the axial rotation motor of the chuck assembly 210 is slowly rotated in one direction, so that the rotation shaft 110 is one direction through the second connecting portion 176 coupled to the groove portion 235 of the axial rotation body 234. Will rotate.

In addition, the movable member 132 moves along the rotating shaft 110 and causes the contact portion 150 connected to the link member 135 to contract, so that the buckling preventing device 100 is the inner diameter portion 1a of the hot rolled coil 1. Makes it easier to insert into.

Next, when the buckling prevention device 100 is inserted into the inner diameter portion 1a of the hot rolled coil 1 and rotates the shaft rotation motor in the reverse direction, as shown in FIG. 10, the rotation shaft 110 rotates in the reverse direction and the link member ( The contact portion 150 mediated by 135 is in close contact with the inner diameter portion 1a of the hot rolled coil 1 and expands to support it.

When the expansion of the contact portion 150 is completed as described above, the jaw cylinder 222 operates in the reverse direction to relax the clamp jaw 220, and in this state, the chuck assembly 210 comes out as shown in FIG. 11, thereby preventing buckling. The device 100 remains in the coil and the chuck assembly 210 exits out of the coil.

In the present embodiment, the moving unit 250 for moving the chuck assembly 210 may position the chuck assembly 210 in a work standby position while the hot rolled coil is mounted on the winder, and moves the chuck assembly 210. By combining the buckling preventing device 100 can be moved to be inserted or removed.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents. It will be clear to those who have knowledge.

1: hot rolled coil 2: winding machine
10: drawing-in and drawing-out device 100: buckling prevention device
110: rotating shaft 110a, 110b: split shaft
110c: joint member 115: support rod
130: elastic pressing unit 132: moving member
133: moving hole member 134: nut hole member
135: link member 150: contact portion
160: guide portion 167: rotary shaft connecting member
161: first guide portion 161a: support plate
162: guide groove 165: second guide portion
166: guide tab 170: rotary support
172: disc grip portion 174: first connection portion
175: first uneven portion 176: second connection portion
200: loader / unloader 210: chuck assembly
212 housing 220: clamp jaw
222: jaw cylinder 230: rotary connection
232: disc rotating body 233: second uneven portion
234: shaft rotating body 235: groove
240, 240a, 240b, 240c, 240d: proximity sensor
250: moving part 252: shaft
254: cylinder 256: cam follower

Claims (10)

A buckling preventing device inserted into an inner diameter portion of a product wound in a coil shape,
A rotating shaft; A moving member spirally coupled to the rotating shaft to move on the rotating shaft in association with the rotation of the rotating shaft; A plurality of contact portions disposed to face each other through the movable member and the link member and to support the inner diameter portion of the product;
Guide parts provided on both sides of the contact part to guide movement of the contact part; And a rotation support part provided at one side of the guide part and connected with rotation means for applying a rotation force to the rotation shaft.
The rotation support part is disposed on the axis of the rotary shaft and the disc rim portion provided on the center line of the guide portion, the first connection portion protruding in the axial direction from one side of the disc bleed portion, provided with at least one first uneven portion, A buckling preventing device including a second connecting portion that rotates in conjunction with the rotation axis.
delete The method according to claim 1,
The second connecting portion is a buckling preventing device, characterized in that the outer peripheral surface is provided as a polygon.
Anti-buckling device according to claim 1 or 3 inserted into the inner diameter of the product to support the inner diameter of the coiled product; And
A loader / unloader connected to the rotational support of the buckling prevention device to draw or pull the buckling prevention device into the inner diameter of the product and to provide rotational force to the rotating shaft so that the contact portion expands or contracts;
In and out of the buckling prevention device comprising a.
The method of claim 4 wherein the loader / unloader is
A chuck assembly which is engaged to bite and fix the rotary support and rotates the rotary shaft;
And a moving unit for moving the chuck assembly.
The chuck assembly of claim 5, wherein the chuck assembly is
A housing,
A plurality of clamp jaws provided in the housing and provided to move in a radial direction of the rotatable support and to be bitten to the outer circumferential surface of the rotatable support;
Jaw cylinder for moving the clamp jaw,
A housing rotating part for rotating the housing such that the clamp jaw corrects the bite position of the rotating support part;
In and out of the buckling device, characterized in that it comprises a rotary connection to be engaged to the rotating shaft in the front of the housing to transmit the rotational force.
The method of claim 6,
The rotation support portion
A disc bleeding portion provided on the center line of the guide portion;
A first connection part protruding in an axial direction from one side of the disc fold part and provided with at least one first uneven part;
A second connection part disposed on an axis of the rotation shaft and rotated in association with the rotation shaft,
The housing rotating portion
A disc rotating body provided on a front surface of the housing and provided with a second uneven portion corresponding to a first uneven portion of the first connection portion on an outer circumferential surface thereof;
In and out of the buckling preventing device comprising a rotating motor for rotating the disc rotating body.
The method of claim 7, wherein the rotary connection portion
An axial rotating body provided on the axis of the disc rotating body and provided with a groove corresponding to the second connecting portion;
In and out of the buckling prevention device comprising a shaft rotation motor connected to rotate the shaft rotating body.
The method according to claim 5,
The chuck assembly further includes a proximity sensor for measuring the proximity to the rotational support of the buckling preventing device, the buckling apparatus for retracting and withdrawing device.
The method of claim 5, wherein the moving unit
A shaft for guiding movement of the chuck assembly;
A cylinder for moving the chuck assembly along the shaft;
And a cam follower for guiding the movement of the chuck assembly.

Images