Turnover device

Abstract

The utility model relates to a roll-up device which comprises a roll-up table and a roll-up driving mechanism, the roll-up table is connected with the roll-up driving mechanism so as to have a rolled position and a roll-up position, in the rolled position, the table top of the roll-up table is parallel to the horizontal plane, and in the roll-up position, the table top of the roll-up table is parallel to the vertical direction; an inner hole supporting unit used for supporting an inner hole of a steel coil is arranged on the overturning table, and the axis of the inner hole supporting unit is perpendicular to the table top of the overturning table. According to the roll-over table, the inner hole supporting unit is arranged on the roll-over table, inner hole supporting can be carried out on a steel roll, the situation that the steel roll collapses after being turned into a horizontal roll state can be avoided, the follow-up process treatment quality of the steel roll is guaranteed, and the follow-up process operation difficulty is reduced. A sleeve does not need to be added in the steel coil treatment process, and therefore the situation that the production cost is increased due to the fact that the steel sleeve is stored, transported, installed on a mandrel of a coiling machine, collected in the later period and the like can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel coil production, and particularly relates to a coil turning device. Background Art

[0002] In the production of cold-rolled products in metallurgical enterprises, according to the heat treatment process requirements, the steel coils need to be heat treated in a vertical state (such as annealing, etc.), and then the vertical coils after heat treatment are flipped into horizontal coils for subsequent production processes.

[0003] After the heat treatment process, the steel coils still maintain their original hollow cylindrical state in the vertical coil state because the interlayer pressure and friction force almost completely disappear; however, after the steel coils are turned over to the horizontal coil state, they will be flattened under the action of their own gravity, and the steel coils and coil cores will be severely deformed, commonly known as collapsed coils. Subsequent production of collapsed coils will be very difficult.

[0004] Thin strip steel coils are generally produced by adding sleeves, that is, before coiling, a steel sleeve is first installed on the coiler mandrel, and then the steel strip is wrapped around the sleeve for coiling to avoid the risk of coil collapse. However, the sleeve-adding method makes the heat treatment quality of the strip close to the sleeve unable to meet the use requirements, reducing the yield rate. At the same time, it brings a series of production equipment and operating procedures such as steel sleeve storage, transportation, installation on the coiler mandrel and subsequent collection, which seriously increases production costs. The loss of steel sleeves will also increase production costs. Utility Model Content

[0005] The utility model relates to a rolling device, which can at least solve some defects of the prior art.

[0006] The utility model relates to a rolling device, comprising a turning table and a turning drive mechanism, wherein the turning table is connected to the turning drive mechanism so as to have a rolling position and a rolling position, wherein in the rolling position, the table surface of the turning table is parallel to the horizontal plane, and in the rolling position, the table surface of the turning table is parallel to the vertical plane; an inner hole support unit for inner hole support of the steel coil is provided on the turning table, and the axis of the inner hole support unit is perpendicular to the table surface of the turning table.

[0007] As one of the implementation modes, the inner hole support unit adopts an expansion and contraction reel.

[0008] As one of the implementation modes, the expansion and contraction reel is rotatably mounted on the turning platform, and a rotation driving mechanism for driving the reel to rotate is provided on the turning platform.

[0009] As one of the embodiments, the rotation drive mechanism includes a drive motor, a drive gear and a transmission gear, the drive motor is installed on the flip table, the drive gear is installed on the output shaft of the drive motor, and the transmission gear is installed on the expansion and contraction reel and meshes with the drive gear.

[0010] As one of the implementation manners, the expanding and contracting reel includes a plurality of sector plates and an expanding and contracting driving mechanism for driving each sector plate to move synchronously in the radial direction to achieve expansion and contraction.

[0011] As one of the implementation manners, the expanding and contracting driving mechanism includes a pyramid sleeve and an expanding and contracting driving structure for driving the pyramid sleeve to move axially along itself. The pyramid sleeve has a plurality of driving inclined plane groups, the number of the driving inclined plane groups is the same as that of the sector plates and they are in one-to-one correspondence and cooperation. Each driving inclined plane group includes a plurality of driving inclined planes distributed in sequence along the axial direction of the pyramid sleeve, and a plurality of driving receiving inclined planes which are wedge-fitted with the driving inclined planes are arranged on the sector plates.

[0012] As one of the implementation manners, the coiling device further includes a fixed base, the fixed base is installed on the workshop foundation, and the turning table is rotatably installed on the fixed base.

[0013] As one of the implementation manners, the driving receiving point of the turning table and the turning point of the turning table are respectively arranged on both sides of the axis of the inner hole supporting unit. Wherein, the driving receiving point is the connection point between the turning driving mechanism and the turning table, and the turning point is the hinge point between the turning table and the fixed base.

[0014] As one of the implementation manners, the turning driving mechanism includes a turning hydraulic cylinder, the cylinder body of the turning hydraulic cylinder is hinge-mounted on the workshop foundation, and the output end of the turning hydraulic cylinder is hinged to the turning table.

[0015] As one of the implementation manners, the turning table is provided with supporting feet, and when the turning table is in the coiling position, the supporting feet just support on the workshop foundation.

[0016] The utility model has at least the following beneficial effects:

[0017] In the utility model, an inner hole supporting unit is arranged on the turning table, which can support the inner hole of the steel coil, avoid the situation of coil collapse after the steel coil is turned into a horizontal coil state, ensure the quality of subsequent process treatment of the steel coil and reduce the difficulty of subsequent process operation. During the steel coil processing, there is no need to add a sleeve, thus the increase in production cost caused by the storage, transportation, installation on the coiling mandrel and later collection of the steel sleeve can be avoided. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0019] Figure 1 Schematic diagram of the rolling and unrolling device provided by an embodiment of the present utility model;

[0020] Figure 2 and Figure 3 Schematic diagrams of the turning table in the coil receiving position and the rolling and unrolling position respectively;

[0021] Figure 4 Schematic diagram of the structure of the reel provided by an embodiment of the present utility model;

[0022] Figure 5 Schematic diagram of lifting the coil onto the reel provided by an embodiment of the present utility model. Specific embodiments

[0023] The technical solutions in the embodiments of the present utility model will be described clearly and completely below. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] As Figures 1-3 , an embodiment of the present utility model provides a rolling and unrolling device 1, including a turning table 101 and a turning drive mechanism 109. The turning table 101 is connected to the turning drive mechanism 109 and thus has a coil receiving position and a rolling and unrolling position. In the coil receiving position, the tabletop of the turning table 101 is parallel to the horizontal plane, and in the rolling and unrolling position, the tabletop of the turning table 101 is parallel to the vertical direction; an inner hole support unit for supporting the inner hole of the steel coil 3 is provided on the turning table 101, and the axis of the inner hole support unit is perpendicular to the tabletop of the turning table 101.

[0025] Among them, as Figure 2 and Figure 3 , the above rolling and unrolling device 1 may further include a fixed base 102, which is used to be installed on the workshop foundation. The above turning table 101 is rotatably installed on the fixed base 102. Driven by the turning drive mechanism 109, the turning table 101 rotates relative to the fixed base 102, so as to realize the switching between the coil receiving position and the rolling and unrolling position.

[0026] Preferably, the turning table 101 is provided with feet. When the turning table 101 is in the rolling and unrolling position, the feet just support on the workshop foundation, which can improve the structural stability and working reliability of the rolling and unrolling device 1.

[0027] The turning drive mechanism 109 includes but is not limited to using a turning hydraulic cylinder. Taking the turning hydraulic cylinder as an example, the cylinder body is hinged and installed on the workshop foundation, and the output end is hinged to the turning table 101.

[0028] Preferably, the driving point 104 of the turning table 101 and the rotating point 103 of the turning table 101 are respectively arranged on both sides of the axis of the inner hole supporting unit, where the driving point 104 is the connection point between the turning driving mechanism 109 and the turning table 101, and the rotating point 103 is the hinge point between the turning table 101 and the fixed base 102. This can improve the stability and safety of the turning of the turning table 101 and the steel coil 3.

[0029] In the coil receiving position, the operation of loading the steel coil 3 can be carried out; in the coil turning position, operations such as removing the bundling tape and uncoiling can be carried out. Among them, as Figure 5 , the hoisting of the steel coil 3 can be realized by using a traveling crane to mount an electromagnetic chuck 4. By the energization and de-energization of the electromagnetic chuck 4, the steel coil 3 can be conveniently lifted and released, that is, the coil loading device includes a traveling crane and an electromagnetic chuck 4 mounted on the traveling crane. Optionally, a plurality of lifting lugs (usually three, but other numbers are also possible) are arranged on the electromagnetic chuck 4, and the electromagnetic chuck 4 is mounted on the traveling crane by using a chain or the like. The above-mentioned traveling crane can be an operator-operated traveling crane or an unmanned automatic traveling crane.

[0030] In one embodiment, as Figures 1-3 , the above-mentioned inner hole supporting unit adopts a telescopic drum 2, and the drum 6 can be telescoped to change the diameter, so as to facilitate coil receiving and coil turning and avoid damaging the steel coil 3.

[0031] In one embodiment, the telescopic drum 2 is rotatably installed on the turning table 101, and correspondingly, a rotating driving mechanism for driving the telescopic drum 2 to rotate is arranged on the turning table 101. By driving the telescopic drum 2 to rotate, the telescopic drum 2 can drive the steel coil 3 to rotate, which is convenient for subsequent process operations, such as facilitating the robot to remove the bundling tape or uncoil the coil.

[0032] Optionally, as Figure 2 , the rotating driving mechanism includes a driving motor 106, a driving gear 107 and a transmission gear 108. The driving motor 106 is installed on the turning table 101, the driving gear 107 is installed on the output shaft of the driving motor 106, the transmission gear 108 is installed on the telescopic drum 2, and the transmission gear 108 meshes with the driving gear 107; among them, the axis of the transmission gear 108 is parallel to the axis of the drum, and further preferably coaxially arranged. The above-mentioned driving motor 106, driving gear 107 and transmission gear 108 are all preferably arranged inside the turning table 101 (taking the coil receiving position as an example, the above-mentioned driving motor 106, driving gear 107 and transmission gear 108 are all located below the table top of the turning table 101) to avoid interfering with the steel coil 3 placed on the table top; in addition, a support bearing 105 can be arranged on the turning table 101 to ensure the installation stability and application reliability of the telescopic drum 2.

[0033] The existing expanding and contracting drum 2 is applicable to this embodiment. Among them, the above-mentioned expanding and contracting drum 2 includes a plurality of sector plates 201 and an expanding and contracting driving mechanism for driving each sector plate 201 to move synchronously in the radial direction to achieve expansion and contraction. In the reduced diameter state, each sector plate 201 is distributed in a common small circle (the diameter of this small circle is R1), and in the expanded diameter state, each sector plate 201 is distributed in a common large circle (the diameter of this large circle is R2).

[0034] In one embodiment, as Figure 4 , the above-mentioned expanding and contracting driving mechanism includes a pyramid sleeve 202 and an expanding and contracting driving structure for driving the pyramid sleeve 202 to move axially along itself. The pyramid sleeve 202 has a plurality of driving inclined plane groups, and the number of driving inclined plane groups is the same as that of the sector plates 201 and they are in one-to-one correspondence and cooperation. Each driving inclined plane group includes a plurality of driving inclined planes 207 distributed in sequence along the axial direction of the pyramid sleeve 202. A plurality of driving receiving inclined planes that are wedge-fitted with each driving inclined plane 207 are provided on the sector plate 201. When the pyramid sleeve 202 moves axially along itself, based on the wedge-fitting relationship between each driving inclined plane 207 and each driving receiving inclined plane, each sector plate 201 can be made to move synchronously in the radial direction, achieving the purpose of expanding and contracting the drum 6.

[0035] Optionally, the number of sector plates 201 is four, and the pyramid sleeve 202 correspondingly has four driving inclined plane groups.

[0036] As a preferred solution, as Figure 4 , the above-mentioned expanding and contracting driving structure includes a hollow main shaft 203, a pull rod 204, and an expanding and contracting power unit 205. The above-mentioned pyramid sleeve 202 is sleeved on the hollow main shaft 203 and can move axially along the hollow main shaft 203. The pull rod 204 is movably arranged in the axial cavity of the hollow main shaft 203. One end of the pull rod 204 extends out of the hollow main shaft 203 and is connected to the expanding and contracting power unit 205, so that it can move axially in the hollow main shaft 203. The pyramid sleeve 202 is fixedly connected to the pull rod 204, so that the pull rod 204 can drive the pyramid sleeve 202 to move axially.

[0037] The above-mentioned hollow main shaft 203 is the main load-bearing member of the expanding and contracting drum 2, and it can cooperate with the support bearing 105 on the turning table 101.

[0038] Preferably, a limiting structure is provided on the hollow main shaft 203 for restricting the relative rotation between the pyramid sleeve 202 and the hollow main shaft 203, including but not limited to adopting the following structure: at least one sliding key is provided between the pyramid sleeve 202 and the hollow main shaft 203.

[0039] Optionally, the pyramid sleeve 202 and the pull rod 204 are connected by a taper pin 206. An activity window can be correspondingly opened on the hollow main shaft 203, and the taper pin 206 passes through the activity window and is respectively connected to the pyramid sleeve 202 and the pull rod 204. Wherein, the length of the activity window in the axial direction of the hollow main shaft 203 should not be less than the activity stroke of the pull rod 204.

[0040] The above-mentioned expansion and contraction power unit 205 can adopt linear drive devices such as hydraulic cylinders and air cylinders. Optionally, a detachable connection form such as a flange connection structure 210 can be adopted between the above-mentioned hollow main shaft 203 and the expansion and contraction power unit 205; the output shaft of the expansion and contraction power unit 205 can be connected to the above-mentioned pull rod 204 through a coupling 211.

[0041] In the structure where the above-mentioned expansion and contraction reel 2 is rotatably installed on the turntable 101, the rotation drive mechanism can be connected to the above-mentioned hollow main shaft 203. For example, a transmission gear 108 is installed on the hollow main shaft 203.

[0042] A relief hole is correspondingly opened on the turntable 101 for the sector plate 201 to pass through and extend. In one embodiment, the two ends of the sector plate 201 are respectively located on both sides of the tabletop of the turntable 101, that is, the sector plate 201 partially extends outside the tabletop of the turntable 101 and partially lies inside the turntable 101; the diameter of the above-mentioned relief hole is preferably the same as the above-mentioned large circle diameter R2. In this way, in the state where the reel 6 is in the expanded diameter state, the sector plate 201 contacts the turntable 101, and the force received by the sector plate 201 can be more reliably transmitted to the turntable 101, ensuring the application reliability of the above-mentioned rolling device 1.

[0043] In one embodiment, as Figure 4, a positioning plate 208 is provided at the cantilever end of the hollow main shaft 203. The plate surface of the positioning plate 208 is perpendicular to the axis of the hollow main shaft 203. A plurality of positioning blocks are protruded from the periphery of the positioning plate 208. Positioning holes are correspondingly provided on the sector plate 201. The number of the positioning blocks is the same as that of the sector plates 201 and they are arranged in one-to-one correspondence. Each positioning block is inserted into the corresponding positioning hole and the two are in guiding cooperation (the guiding direction is obviously parallel to the radial movement direction of the sector plate 201). Among them, the protruding length of the positioning block ensures that it is still in guiding cooperation with the positioning hole under the diameter expansion state of the winding drum 6. Based on the above design, the movement of the sector plate 201 can be limited to the radial direction, ensuring the reliability of the expansion and contraction of the winding drum 6. Particularly, the positioning plate 208 is detachably fixed on the hollow main shaft 203. When the connection between the positioning plate 208 and the hollow main shaft 203 is released, the positioning plate 208 and each sector plate 201 can be removed from the hollow main shaft 203, thus facilitating the disassembly, assembly and maintenance of the sector plate 201 and the winding drum 6. The positioning plate 208 is preferably installed on the hollow main shaft 203 through fastening screws 209, etc.; since the positioning plate 208 is fixed on the hollow main shaft 203, the fastening screw 209 will not bear axial tension during the expansion and contraction of the winding drum 6, so reliable structural stability of the positioning plate 208 and guiding effect on the sector plate 201 can be obtained.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rolling device, characterized in that: It includes a turning table and a turning drive mechanism. The turning table is connected to the turning drive mechanism so as to have a coil receiving position and a coil turning position. In the coil receiving position, the table surface of the turning table is parallel to the horizontal plane, and in the coil turning position, the table surface of the turning table is parallel to the vertical plane. The turning table is provided with an inner hole support unit for inner hole support of the steel coil, and the axis of the inner hole support unit is perpendicular to the table surface of the turning table.

2. The rolling device according to claim 1, characterized in that: The inner hole support unit adopts an expansion and contraction reel.

3. The rolling device according to claim 2, characterized in that: The expansion and contraction reel is rotatably mounted on the turning platform, and a rotation driving mechanism for driving the reel to rotate is provided on the turning platform.

4. The rolling device according to claim 3, characterized in that: The rotation driving mechanism comprises a driving motor, a driving gear and a transmission gear. The driving motor is mounted on the turning table. The driving gear is mounted on the output shaft of the driving motor. The transmission gear is mounted on the expansion and contraction reel and meshes with the driving gear.

5. The rolling device according to claim 2, characterized in that: The expansion and contraction reel comprises a plurality of sector plates and an expansion and contraction driving mechanism for driving the sector plates to move synchronously in the radial direction to achieve expansion and contraction.

6. The rolling device according to claim 5, characterized in that: The expansion and contraction driving mechanism includes a pyramid sleeve and an expansion and contraction driving structure for driving the pyramid sleeve to move along its own axial direction. The pyramid sleeve has a plurality of driving bevel groups. The number of the driving bevel groups is the same as that of the fan-shaped plates and they are matched one by one. Each driving bevel group includes a plurality of driving bevels distributed in sequence along the axial direction of the pyramid sleeve. The fan-shaped plate is provided with a plurality of bearing drive bevels that match the wedge surfaces of each driving bevel.

7. The rolling device according to claim 1, characterized in that: The rolling device also includes a fixed base, which is installed on the workshop foundation, and the turning table is rotatably installed on the fixed base.

8. The rolling device according to claim 7, characterized in that: The bearing-driving point and the rotation point of the flip table are relatively arranged on both sides of the axis of the inner hole support unit, wherein the bearing-driving point is the connection point between the flip drive mechanism and the flip table, and the rotation point is the hinge point between the flip table and the fixed base.

9. The rolling device according to claim 1, characterized in that: The turning drive mechanism comprises a turning hydraulic cylinder, a cylinder body of the turning hydraulic cylinder is hingedly installed on the workshop foundation, and an output end of the turning hydraulic cylinder is hingedly connected to the turning platform.

10. The rolling device according to claim 1, characterized in that: The turning table is provided with supporting feet, and when the turning table is in the rolling position, the supporting feet are just supported on the workshop foundation.

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