Rolling mill production line inlet device and rolling mill production line

Abstract

A rolling mill production line inlet device and a rolling mill production line relate to the technical field of metal rolling. The rolling mill production line inlet device comprises a discharging mechanism, a straightening mechanism and a loop. The discharging mechanism comprises a material moving machine base and a plurality of trays used for bearing rolling raw materials, the discharging mechanism is provided with a discharging station and a feeding station, and the material moving machine base drives the trays to be movably arranged between the discharging station and the feeding station. Wherein the straightening mechanism and the loop are adjacent to the discharging station, the loop is provided with a discharging port for rolling raw materials to penetrate through, and the discharging port is arranged towards the discharging station; the straightening mechanism is provided with a straightening opening allowing the rolling raw materials to penetrate through, and the straightening opening faces the discharging station; and an included angle alpha between the orientation of the discharge port and the orientation of the straightening port is not less than 30 degrees and not more than 50 degrees. The inlet device of the rolling mill production line is beneficial to improving the feeding efficiency and stability.

Description

Technical Field

[0001] The present disclosure relates to the technical field of metal rolling, and in particular, to an inlet device for a rolling mill production line and a rolling mill production line. Background Art

[0002] As an important piece of equipment in the field of metal processing, a rolling mill production line is widely used in the continuous rolling production of products such as sheets and strips. In a rolling mill production line, the main function of the inlet device is to continuously and stably discharge the rolling raw materials. Therefore, the discharging efficiency, accuracy, and stability of the inlet device of the rolling mill production line directly affect the stability of the subsequent rolling process, and thus affect the production rhythm and product quality. The inlet device of the rolling mill production line in the related art has problems such as low feeding efficiency and unstable speed, which affect the production rhythm. Summary of the Utility Model

[0003] The present disclosure provides an inlet device for a rolling mill production line and a rolling mill production line, which are beneficial to improving the feeding efficiency and stability of the inlet device of the rolling mill production line.

[0004] According to one aspect of the present disclosure, there is provided an inlet device for a rolling mill production line, including:

[0005] A discharging mechanism, a straightening mechanism, and a loop; the discharging mechanism includes a transfer machine base and a plurality of trays for receiving rolling raw materials, the discharging mechanism has a discharging station and a loading station, and the transfer machine base drives the trays to be movably arranged between the discharging station and the loading station;

[0006] Wherein, the straightening mechanism and the loop are adjacent to the discharging station, the loop has a discharging port for the rolling raw materials to pass through, and the discharging port is arranged towards the discharging station; the straightening mechanism has a straightening port for the rolling raw materials to pass through, and the straightening port is arranged towards the discharging station; the included angle α between the orientation of the discharging port and the orientation of the straightening port is not less than 30° and not more than 50°.

[0007] In an exemplary embodiment of the present disclosure, the straightening mechanism includes a pressing block, a first support block, and a second support block. The two side surfaces of the first support block and the two side surfaces of the second support block are coplanar respectively. The pressing block is parallel to one side surface of the first support block and the second support block to form a straightening port between the pressing block and the first support block and the second support block; the pressing block is relatively movable closer to or away from the first support block and the second support block to narrow or widen the straightening port.

[0008] In an exemplary embodiment of the present disclosure, the first support block and the second support block are symmetric with respect to the pressing block along the extending direction of the straightening port; the included angles between the first support block, the second support block and the orientation of the discharging port are smaller than the included angle between the pressing block and the orientation of the discharging port.

[0009] In an exemplary embodiment of the present disclosure, the first support block and the second support block are arranged to be relatively close to or away from each other; the first support block and the second support block are connected by a conjugate motion mechanism, so that when the first support block and the second support block approach or move away from each other, their moving directions are opposite and the moving distances are the same.

[0010] In an exemplary embodiment of the present disclosure, the straightening mechanism includes a straightening machine base and a swing arm; a pressing block, a first support block and a second support block are arranged on the upper surface of the swing arm; the swing arm is rotatably connected to the straightening machine base through a first pin shaft, and the first pin shaft is perpendicular to the upper surface of the swing arm.

[0011] In an exemplary embodiment of the present disclosure, the loop includes a first roller group and a second roller group; the first roller group includes two first rollers with parallel axes, and the second roller group includes two second rollers with parallel axes;

[0012] Wherein, the axes of the first rollers are perpendicular to the axes of the second rollers; a first channel for the rolling raw material to pass through is formed between the two first rollers, a second channel for the rolling raw material to pass through is formed between the two second rollers, and the first channel and the second channel together form a discharge port.

[0013] In an exemplary embodiment of the present disclosure, the first channel is located on the side of the second channel close to the feeding station.

[0014] In an exemplary embodiment of the present disclosure, the ratio of the width D1 of the first channel to the width D2 of the second channel satisfies 0.2 ≤ D1 / D2 ≤ 0.3.

[0015] In an exemplary embodiment of the present disclosure, the axes of the first rollers are arranged in the horizontal direction, and the axes of the two first rollers are staggered from each other; the axes of the second rollers are arranged in the vertical direction, and the axes of the first rollers and the plane where the axes of the two second rollers are located are coplanar;

[0016] A plurality of proximity switches are provided on the first roller relatively far from the feeding mechanism in the first roller group, the proximity switches are arranged on the side of the first roller close to the feeding mechanism, the proximity switches are arranged towards the first channel, and the plurality of proximity switches are arranged along the axis of the first roller; the proximity switches at least include a first switch, a second switch and a third switch arranged in sequence, the second switch corresponds to the center of the discharge port, and the first switch is located on the side of the second switch close to the straightening mechanism;

[0017] The feeding speed of the rolling raw material at the feeding station is adjusted according to the detection results of the plurality of proximity switches. Among them, the feeding speed of the rolling raw material slows down in response to the first switch detecting the rolling raw material; the feeding speed of the rolling raw material speeds up in response to the third switch detecting the rolling raw material.

[0018] According to another aspect of the present disclosure, a rolling mill production line is provided, including the rolling mill production line inlet device of any one of the foregoing, and a tandem rolling unit, wherein the discharge port faces the inlet of the tandem rolling unit.

[0019] The rolling mill production line inlet device provided by the present disclosure arranges the straightening mechanism and the loop in a position adjacent to the discharging station of the feeding mechanism. When the tray rotates to the discharging station (for example, the first station) and is ready to discharge, the head of the coil can be discharged towards the straightening mechanism first, so that a section of the head of the coil enters the straightening port for straightening. After straightening, the head of the coil is rewound, and then discharged towards the discharge port of the loop. The rolling mill production line inlet device of the present disclosure designs the orientations of the discharge port and the straightening port so that the included angle between their orientations is between 30° and 50°. After straightening, when the coil on the discharging station rotates and collects the material, after the material rod exits the straightening port, it can align the material rod with the discharge port 301 only after a small-angle rotation, avoiding the large-stroke rewinding of the material rod again after straightening, which affects the straightening effect, and is also beneficial to shortening the preparation time for discharging, starting to discharge as soon as possible after the tray rotates to the discharging station, improving the feeding efficiency, and accelerating the production rhythm.

[0020] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings here are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure. Obviously, the accompanying drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a top view schematic diagram of an exemplary embodiment of the rolling mill production line inlet device of the present disclosure.

[0023] Figure 2 It is a schematic diagram of the rotary discharging device in an exemplary embodiment of the rolling mill production line inlet device of the present disclosure.

[0024] Figure 3 It is a schematic diagram of another perspective of the rotary discharging device in an exemplary embodiment of the rolling mill production line inlet device of the present disclosure.

[0025] Figure 4 It is a schematic diagram of the straightening mechanism in an exemplary embodiment of the rolling mill production line inlet device of the present disclosure.

[0026] Figure 5Schematic diagram of another perspective of the straightening mechanism in an exemplary embodiment of the inlet device of the rolling mill production line disclosed herein.

[0027] Figure 6 Schematic diagram of the loop in an exemplary embodiment of the inlet device of the rolling mill production line disclosed herein.

[0028] Figure 7 Top view schematic diagram of the loop in an exemplary embodiment of the inlet device of the rolling mill production line disclosed herein.

[0029] Figure 8 is Figure 7 Cross-sectional view of section B-B in

[0030] Description of reference numerals:

[0031] 11, material transfer base; 12, tray; 101, first station; 102, second station; 103, third station; 13, rotary feeding device; 131, rotary motor; 132, base of rotary feeding device; 133, rotary disk; 134, central column; 135, tray positioning pin;

[0032] 2, straightening mechanism; 201, straightening opening; 21, pressing block; 22, first support block; 23, second support block; 24, base of straightening machine; 25, swing arm; 26, first pin shaft; 27, adjusting cylinder; 28, adjusting handle;

[0033] 3, loop; 301, discharge port; 302, first channel; 303, second channel; 31, first pressing roller; 32, second pressing roller; 33, proximity switch; 331, first switch; 332, second switch; 333, third switch; 34, limit cylinder. Detailed implementation manners

[0034] Now, the exemplary embodiments will be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the figures denote the same or similar structures, and thus their detailed descriptions will be omitted. In addition, the drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale.

[0035] Unless otherwise specified or stated, the technical terms or scientific terms used in this disclosure shall have the ordinary meanings understood by those of ordinary skill in the field to which this disclosure pertains. The terms "a", "one", "the", "said" and "at least one" are used to indicate the existence of one or more elements / components / etc.; the terms "comprising" and "having" are used to mean an open inclusion and mean that there may be additional elements / components / etc. in addition to the listed elements / components / etc.; the terms "first" and "second" are used only as labels and do not limit the quantity, importance or order of their objects.

[0036] Terms such as "connection", "fixation", etc. shall all be understood in a broad sense. For example, "connection" can be a fixed connection, a movably connection, an integral connection, a detachable connection, can be directly connected, or can be indirectly connected through an intermediate medium.

[0037] In this disclosure, when it is stated that "Part A is provided on Part B", it can be that Part A is directly in contact and connected to Part B, or Part A is provided on Part C and Part C is provided on Part B.

[0038] "Communication connection" can be a wired communication connection or a wireless communication connection, can be direct communication, or can indirectly achieve signal connection through an intermediate medium.

[0039] In addition, in this application, orientation terms such as "upper" and "lower" are only used to represent relative position relationships. For example, for convenience, they are defined according to the position and state of the inlet device of the rolling mill production line and the actual working state of the rolling mill production line, or the orientation of the components shown in the drawings. It should be understood that these directional terms are relative concepts and can change correspondingly according to the change of the orientation in which the components are placed in the drawings.

[0040] According to one aspect of the present disclosure, there is provided an inlet device for a rolling mill production line, and the inlet device for the rolling mill production line includes a feeding mechanism, a straightening mechanism 2 and a loop 3. The feeding mechanism includes a transfer machine base 11 and a plurality of trays 12 for receiving rolling raw materials. The feeding mechanism has a feeding station and a loading station, and the transfer machine base 11 drives the trays 12 to be movably arranged between the feeding station and the loading station.

[0041] Among them, the straightening mechanism 2 and the loop 3 are adjacent to the feeding station. The loop 3 has a discharge port 301 for the rolling raw material to pass through, and the discharge port 301 is arranged facing the feeding station; the straightening mechanism 2 has a straightening port 201 for the rolling raw material to pass through, and the straightening port 201 faces the feeding station. The included angle α between the orientation of the discharge port 301 and the orientation of the straightening port 201 is not less than 30° and not greater than 50°.

[0042] Specifically, the feeding mechanism may have one feeding station and multiple loading stations. Refer to Figure 1 As shown, the feeding mechanism may have one feeding station and two loading stations. Among them, the rolling raw material can be fed in the tray 12 at the feeding station and enter the continuous rolling mill at the rear end. The rolling raw material can be loaded at one or more of the loading stations to ensure that the tray 12 carrying the rolling raw material can be fed once it rotates to the feeding station, saving time and accelerating the production rhythm.

[0043] Refer to Figure 1 As shown, the feeding mechanism may have a first station 101, a second station 102, and a third station 103. The transfer machine base 11 has a transfer disk, and the positions of the first station 101, the second station 102, and the third station 103 are evenly distributed on the transfer disk, that is, the included angle between two adjacent stations is 120°. Among them, the first station 101 is the feeding station, and the second station 102 and the third station 103 are the loading stations. A tray 12 can be placed correspondingly above each station. For example, Figure 1 the tray 12 on the first station 101 is shown in

[0044] For example, in an embodiment of the present disclosure, the rolling raw material may be a copper-aluminum alloy composite material, the core may be Al1070 aluminum or 8030 aluminum alloy, and the cladding material may be T2 copper, hereinafter referred to as a copper-aluminum composite rod. Its material properties include: density of 4250 kg / m 3 , Poisson's ratio of 0.32, elastic modulus of 81 GPa, yield strength of 250 MPa, tensile strength of 350 MPa, and the material model is elastoplastic. Exemplarily, the specification of the rolling raw material is 40 mm × 32 mm, and the fillet R = 4 mm. Another example, the specification of the rolling raw material is 30 mm × 30 mm, and the fillet R4 = 4 mm. The incoming material length is 90 m, coiled into a roll and placed on the tray 12. In the following description, the rolling raw material is taken as an example of a copper-aluminum composite rod for illustration.

[0045] The loop 3 has a discharge port 301 for the rolling raw material to pass through. Refer to Figure 1An overall schematic diagram of the entrance device of the rolling mill production line is shown. The rolling raw material released from the pallet 12 at the loading station can enter the subsequent tandem rolling mill set only after passing through the discharge port 301. For example, the cross-section of the copper-aluminum composite rod is approximately rectangular or square. After uncoiling, under the action of gravity and pre-deformation force, the released copper-aluminum composite rod may deviate from the entrance horizontal line of the subsequent tandem rolling mill set during loading. This exemplary embodiment can limit the position and posture of the rolling raw material through the discharge port 301 of the loop 3, ensuring that the rolling raw material released at the loading station can enter the subsequent tandem rolling mill set at a fixed angle, reducing the processes and time of manual adjustment.

[0046] The straightening mechanism 2 has a straightening port 201 for the rolling raw material to pass through. Refer to Figure 1 An overall schematic diagram of the entrance device of the rolling mill production line is shown. Before the material is fed into the tandem rolling mill set, the head of the coil can be first fed into the straightening port 201 of the straightening mechanism 2 for straightening correction, and then the material is fed to ensure the stability of subsequent continuous feeding.

[0047] In an exemplary embodiment, the third station 103 can be a stock preparation station for reserving adjustment processes in the production process to ensure accurate production rhythm. Specifically, in a process of feeding materials through the feeding mechanism of the present disclosure, the coil of the copper-aluminum composite rod is placed on the pallet 12 at the top of the second station 102 at the second station 102, waits at the third station 103 after one rotation, and rotates to the first station 101 after the next rotation. After the pallet 12 placed with the coil of the copper-aluminum composite rod rotates to the first station 101, the head of the coil can be first fed towards the straightening mechanism 2 for feeding, so that a section of the head of the coil enters the straightening port 201 for straightening, and then the coil is partially wound up to retract the head of the coil, and rotates towards the discharge port 301 of the loop 3 to continuously feed the tandem rolling mill set.

[0048] The entry device of the rolling mill production line provided by the present disclosure arranges the straightening mechanism 2 and the loop 3 at positions adjacent to the feeding station of the feeding mechanism. When the tray 12 rotates to the feeding station (such as the first station 101) and is ready for feeding, the head of the coil can be fed towards the straightening mechanism 2 first, so that a section of the head of the coil enters the straightening port 201 for straightening. After straightening, the head of the coil is rewound, and then fed towards the discharge port 301 of the loop 3. The entry device of the rolling mill production line of the present disclosure designs the orientation of the discharge port 301 and the straightening port 201 so that the included angle between their orientations is between 30° and 50°. After straightening, when the coil on the feeding station rotates to collect the material, after the material rod exits the straightening port 201, it can be aligned with the discharge port 301 and fed into the discharge port 301 only after a small-angle rotation, avoiding the large-stroke rewinding of the material rod again after straightening, which affects the straightening effect, and is also beneficial to shortening the preparation time for feeding, starting feeding as soon as possible after the tray 12 rotates to the feeding station, improving the feeding efficiency, and accelerating the production rhythm.

[0049] Exemplarily, a rotary feeding device 13 can be provided at the feeding station. Specifically, through holes can be provided below each tray 12 on the transfer disk, and the rotary feeding device 13 is arranged below the through holes corresponding to the feeding station. Refer to Figure 1 As shown, in order to clearly show the relative positional relationship between the rotary feeding device 13, the through holes of the feeding station, and the tray 12 of the feeding station, Figure 1 it is not drawn according to the view relationship where the tray 12 blocks the rotary feeding device 13 in the top view, but the tray 12 and the rotary feeding device 13 below the tray 12 are shown simultaneously. The rotary feeding device 13 can lift the tray 12 at the feeding station so that it is separated from the transfer disk. Further, the rotary feeding device 13 can also drive the tray 12 to rotate to drive the coil in the tray 12 to rotate for winding and unwinding.

[0050] Refer to Figure 2 、 Figure 3 , which shows a schematic diagram of a rotary feeding device 13. The rotary feeding device 13 can include a rotary motor 131, a rotary feeding device base 132, and a rotary disk 133. Among them, the rotary disk 133 is arranged on the top of the rotary feeding device base 132. The rotary disk 133 can rotate relative to the rotary feeding device base 132 around its own axis, and the rotary disk 133 can move up and down relative to the rotary feeding device base 132 along its own axis. The rotary motor 131 is drivingly connected to the rotary disk 133 to drive the rotary disk 133 to rotate, and the linear movement of the rotary disk 133 can be realized by a pneumatic cylinder or a hydraulic cylinder. Alternatively, the rotary feeding device 13 can also include a lifting motor, and the lifting motor is drivingly connected to the rotary disk 133 to drive the rotary disk 133 to move up and down along the axis to lift or lower the tray 12 in forms of movement such as worm and gear, rack and pinion, push rod and nut.

[0051] In an exemplary embodiment of the present disclosure, a central column 134 is provided at the center of the rotating disk 133. A centering hole may be provided at the center of the bottom of the tray 12. When the tray 12 rotates to the feeding station and the rotating disk 133 rises to lift the tray 12, the central column 134 can be matched with the centering hole at the bottom of the tray 12 to achieve centering of the tray 12 and the rotating disk 133, and prevent the tray 12 from tilting. Exemplarily, the diameter of the central column 134 gradually decreases from the bottom to the top, so as to improve the centering effect on the tray 12.

[0052] The upper surface of the rotating disk 133 may be provided with a tray positioning pin 135. Refer to Figure 3 As shown, the tray positioning pin 135 deviates from the center of the rotating disk 133. A tray positioning hole corresponding to the tray positioning pin 135 may be provided at the bottom of the tray 12. When the rotating disk 133 rises to lift the tray 12, the central column 134 is matched with the centering hole at the bottom of the tray 12, and the tray positioning pin 135 extends into the tray positioning hole, so that the tray 12 can rotate synchronously with the rotating disk 133. After the feeding is completed, the rotating disk 133 can be lowered to be lower than the transfer disk, and the tray 12 is lowered to the surface of the transfer disk. The central column 134 is disengaged from the centering hole, and the tray positioning pin 135 is disengaged from the tray positioning hole, so that the tray 12 can move to the next station with the rotation of the transfer disk, for example, move to the second station 102 for feeding.

[0053] In an exemplary embodiment of the present disclosure, the straightening mechanism 2 includes a pressing block 21, a first support block 22 and a second support block 23. Refer to Figure 4 、 Figure 5 As shown in the schematic diagram of the straightening mechanism 2, the two side surfaces of the first support block 22 and the two side surfaces of the second support block 23 are coplanar respectively, and the pressing block 21 is parallel to one side surface of the first support block 22 and the second support block 23 to form a straightening opening 201 between the pressing block 21, the first support block 22 and the second support block 23. The pressing block 21 is arranged to be relatively close to or far from the first support block 22 and the second support block 23 to narrow or widen the straightening opening 201. For example, the pressing block 21 is connected to an adjusting cylinder 27, and the push rod of the adjusting cylinder 27 can push the pressing block 21 to move relative to the first support block 22 and the second support block 23, so as to change the width of the straightening opening 201.

[0054] Exemplarily, after placing a copper-aluminum composite rod with a certain curvature into the straightening opening 201, the copper-aluminum composite rod can be supported by the first support block 22 and the second support block 23 respectively. The fulcrums of the first support block 22 and the second support block 23 with the copper-aluminum composite rod can be a chord of the bent section of the copper-aluminum composite rod. The copper-aluminum composite rod bulges towards the pressing block 21. By moving the pressing block 21 towards the first support block 22 and the second support block 23, a bending moment opposite to the bending direction can be applied to the copper-aluminum composite rod, thereby straightening the copper-aluminum composite rod. For example, the pressing block 21 moves towards the first support block 22 and the second support block 23 until the side of the pressing block 21 enters between the first support block 22 and the second support block 23, causing the copper-aluminum composite rod to bend in the direction opposite to the original bending direction under the action of an external force, so that the bending is basically eliminated after exiting the straightening opening 201, achieving a good straightening effect.

[0055] In an exemplary embodiment of the present disclosure, the first support block 22 and the second support block 23 are symmetric with respect to the pressing block 21 along the extending direction of the straightening opening 201. The included angles between the first support block 22, the second support block 23 and the direction towards the discharge opening 301 are smaller than the included angle between the pressing block 21 and the direction towards the discharge opening 301. Refer to Figure 1 And Figure 4 As shown, the distances from the first support block 22 and the second support block 23 to the discharge opening 301 are relatively closer than the distance from the pressing block 21 to the discharge opening 301. After uncoiling, the head of the material can be directly placed towards the straightening opening 201 for feeding, and the head of the material coil is sent into the straightening opening 201. The bending direction of the head of the material coil is towards the direction away from the discharge opening 301, which exactly matches the relative positions of the pressing block 21, the first support block 22 and the second support block 23, so that the straightening mechanism 2 can be conveniently used to straighten the copper-aluminum composite rod.

[0056] In an exemplary embodiment of the present disclosure, the first support block 22 and the second support block 23 can be arranged to be relatively close to or far from each other; the first support block 22 and the second support block 23 can be connected by a conjugate motion mechanism so that the moving directions of the first support block 22 and the second support block 23 are opposite and the moving distances are the same when they approach or move away from each other. For example, the first support block 22 and the second support block 23 are respectively engaged with one of a set of parallel racks, and the two parallel racks are engaged by a common gear. When the gear rotates, the two racks move in opposite directions, thereby realizing the synchronous relative approach or separation of the first support block 22 and the second support block 23. In other embodiments, the first support block 22 and the second support block 23 can also be synchronously moved by means of a double lead screw mechanism, a symmetric crank-slider mechanism or a parallelogram link mechanism, etc., which will not be elaborated here one by one. The distance between the first support block 22 and the second support block 23 in this exemplary embodiment can be adjusted, so as to adapt to the straightening of rod materials with different bending curvatures, which is beneficial to improving the straightening effect.

[0057] In an exemplary embodiment of the present disclosure, referring to Figure 4 , Figure 5 as shown, the straightening mechanism 2 includes a straightening machine base 24 and a swing arm 25. The pressing block 21, the first support block 22 and the second support block 23 are movably provided on the upper surface of the swing arm 25; the swing arm 25 is rotatably connected to the straightening machine base 24 through a first pin shaft 26, and the first pin shaft 26 is perpendicular to the upper surface of the swing arm 25. The swing arm 25 is rotatably connected to the straightening machine base 24. When the first pin shaft 26 is in an active state, the inclination angle of the swing arm 25 is adjustable, so that the orientation of the straightening port 201 can be adjusted. Thus, when the sizes of the material coils are different, the angular relationship between the straightening port 201 and the discharge port 301 can be adaptively adjusted, enabling the straightening process and the feeding process to be better matched and improving production efficiency. When the first pin shaft 26 is in a fixed state, the inclination angle of the swing arm 25 can be locked.

[0058] Referring to Figure 4 , Figure 5 as shown, the swing arm 25 can be connected to an adjusting handle 28, and by rotating the adjusting handle 28, the inclination angle of the swing arm 25 can be changed.

[0059] In an exemplary embodiment of the present disclosure, referring to Figure 6 , Figure 7 , Figure 8 as shown, Figure 6 shows the front view of an exemplary embodiment of the loop 3, Figure 7 shows the top view of an exemplary embodiment of the loop 3, Figure 8 shows Figure 7 the cross-sectional schematic view of the B-B section in

[0060] Referring to Figure 8 , a first channel 302 for the rolling raw material to pass through is formed between the two first pressure rollers 31. Referring to Figure 7 , a second channel 303 for the rolling raw material to pass through is formed between the two second pressure rollers 32. Referring to Figure 6 , the first channel 302 and the second channel 303 together form the discharge port 301.

[0061] Exemplarily, the first channel 302 is located on one side of the second channel 303 close to the feeding station. The rolled raw material discharged from the pallet 12 at the feeding station first passes through the first channel 302 and then through the second channel 303 before entering the continuous rolling mill at the rear end. The first channel 302 and the second channel 303 can limit the rolled raw material in two directions, which is beneficial to ensuring that the rolled raw material discharged at the feeding station can enter the continuous rolling mill at the rear end at a fixed angle, reducing the manual adjustment process and time.

[0062] In an exemplary embodiment of the present disclosure, the ratio of the width D1 of the first channel 302 to the width D2 of the second channel 303 satisfies 0.2 ≤ D1 / D2 ≤ 0.3. Refer to Figure 1 , Figure 7 , Figure 8 As shown, the first channel 302 can limit the position of the copper-aluminum alloy rod in the height direction, and the second channel 303 can limit the position of the copper-aluminum alloy rod in the left-right direction. The width D1 of the first channel 302 is relatively narrow, which can accurately adjust the height of the copper-aluminum alloy rod when it leaves the discharge port 301 and enters the continuous rolling mill at the rear end, ensuring that it matches the height of the rolling center line of the continuous rolling mill. The width D2 of the second channel 303 is relatively wide, which allows the copper-aluminum alloy rod to have a large range of bending curvature when it leaves the discharge port 301 and enters the rolling equipment at the rear end. Exemplarily, the angle between the orientation of the discharge port 301 and the rolling center line of the continuous rolling mill in the horizontal plane is about 150° - 160°. There is a bend between the discharge port 301 and the rolling equipment for the copper-aluminum alloy rod, and the second channel 303 can limit the copper-aluminum alloy rod while not interfering with the normal feeding.

[0063] In an exemplary embodiment of the present disclosure, refer to Figures 6 to 8 , the axis of the first pressing roller 31 is arranged horizontally, and the axes of the two first pressing rollers 31 are staggered from each other; the axis of the second pressing roller 32 is arranged vertically, and the axis of the first pressing roller 31 and the plane where the axes of the two second pressing rollers 32 are located are coplanar.

[0064] A plurality of proximity switches 33 are provided on the first pressing roller 31 that is relatively far from the feeding mechanism in the first pressing roller group. The proximity switches 33 are arranged on the side of the first pressing roller 31 close to the feeding mechanism, and the proximity switches 33 are arranged facing the first channel 302. The plurality of proximity switches 33 are arranged along the axis of the first pressing roller 31. Refer to Figure 6 , Figure 7 As shown, the proximity switch 33 at least includes a first switch 331, a second switch 332, and a third switch 333 arranged in sequence. The second switch 332 corresponds to the center of the discharge port 301, and the first switch 331 is located on the side of the second switch 332 close to the straightening mechanism 2.

[0065] The feeding speed of the rolling raw material at the feeding station is adjusted according to the detection results of multiple proximity switches 33. Among them, the feeding speed of the rolling raw material slows down in response to the first switch 331 detecting the rolling raw material; the feeding speed of the rolling raw material speeds up in response to the third switch 333 detecting the rolling raw material.

[0066] Exemplarily, the proximity switch 33 can be a position sensor, such as a photoelectric detection switch. The proximity switch 33 can detect the position and attitude of the rolling raw material. For example, when the feeding speed of the inlet device matches the rolling speed of the rear mill, the rolling raw material is exactly detected at the center position of the discharge port 301, that is, the position of the second switch 332. When the feeding speed of the inlet device is relatively fast and the rolling speed of the rear mill is relatively slow, the rolling raw material accumulates between the discharge port 301 and the mill inlet, resulting in arching, so that the rolling raw material is detected at the position of the first switch 331, which is on the side close to the straightening mechanism 2. When the feeding speed of the inlet device is relatively slow and the rolling speed of the rear mill is relatively fast, the rolling raw material is tightened between the discharge port 301 and the mill inlet, so that the rolling raw material is detected at the position of the third switch 333, which is on the side far from the straightening mechanism 2.

[0067] In this exemplary embodiment, by arranging the proximity switch 33 on the side of the first roller 31 and adjusting the feeding speed of the rolling raw material at the feeding station according to the detection results of the proximity switch 33, the feeding speed of the inlet device can be automatically matched with the rolling speed of the mill, which is beneficial to improving the intelligence level of the production line and reducing the time of manual adjustment, and is beneficial to accelerating the production efficiency.

[0068] Exemplarily, there can be more proximity switches 33, such as Figure 6 、 Figure 7 As shown in, there are 5 proximity switches 33 arranged along the axis of the first roller 31, or there are more proximity switches 33 arranged along the axis of the first roller 31, so that the position and attitude of the rolling raw material can be obtained more accurately, and the feeding speed of the inlet device can be accurately adjusted, and the adjustment response is faster and more accurate.

[0069] Exemplarily, refer to Figures 6 to 8As shown, the loop 3 includes a limit cylinder 34. One end of the cylinder body of the limit cylinder 34 is hinged to the base of the loop 3, and one end of the push rod is hinged to the upper first pressure roller 31. The upper first pressure roller 31 can be swung open relative to the lower first pressure roller 31 through the limit cylinder 34. At the beginning of the equipment operation or during the process of adjusting the equipment, the first channel 302 can be opened to adjust the position and posture of the rolling raw material therein, or the rolling raw material can be inserted into the discharge port 301. The first pressure roller 31 can be opened through the limit cylinder 34, which can make the dimensional accuracy of the first channel 302 and the discharge port 301 higher. For example, the width D1 in the vertical plane of the first channel 302 can be 140 - 160 mm. For example, the width D1 in the vertical plane of the first channel 302 can be 150 mm.

[0070] According to another aspect of the present disclosure, there is provided a rolling mill production line, including the rolling mill production line inlet device of any one of the foregoing, and a tandem rolling mill set, wherein the discharge port 301 faces the inlet of the tandem rolling mill set. In the rolling mill production line of the present disclosure, the feeding preparation time of the inlet device can be shortened, which is beneficial to improving the overall rolling efficiency and accelerating the production rhythm.

[0071] Those skilled in the art will readily conceive of other embodiments of the present disclosure after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure, which follow the general principles of the present disclosure and include known common knowledge or conventional technical means in the technical field not disclosed by the present disclosure. The specification and examples are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the appended claims.

Claims

1. An entrance device for a rolling mill production line, characterized in that, It includes a feeding mechanism, a straightening mechanism (2) and a loop (3); the feeding mechanism includes a transfer machine base (11) and a plurality of trays (12) for receiving rolling raw materials, the feeding mechanism has a feeding station and a loading station, and the transfer machine base (11) drives the tray (12) to be movably arranged between the feeding station and the loading station; Wherein, the straightening mechanism (2) and the loop (3) are adjacent to the feeding station, the loop (3) has a discharge port (301) for the rolling raw material to pass through, and the discharge port (301) is arranged towards the feeding station; the straightening mechanism (2) has a straightening port (201) for the rolling raw material to pass through, and the straightening port (201) is arranged towards the feeding station; the included angle α between the orientation of the discharge port (301) and the orientation of the straightening port (201) is not less than 30° and not more than 50°.

2. The inlet device of the rolling mill production line according to claim 1, characterized in that, The straightening mechanism (2) includes a pressing block (21), a first support block (22) and a second support block (23), the two side surfaces of the first support block (22) and the two side surfaces of the second support block (23) are coplanar respectively, and the pressing block (21) is parallel to one side surface of the first support block (22) and the second support block (23) to form the straightening port (201) between the pressing block (21), the first support block (22) and the second support block (23); the pressing block (21) is arranged to be relatively close to or far from the first support block (22) and the second support block (23) to narrow or widen the straightening port (201).

3. The entrance device of the rolling mill production line according to claim 2, characterized in that, The first support block (22) and the second support block (23) are symmetric with respect to the pressing block (21) along the extension direction of the straightening port (201); the included angles between the first support block (22), the second support block (23) and the orientation of the discharge port (301) are smaller than the included angle between the pressing block (21) and the orientation of the discharge port (301).

4. The entrance device of the rolling mill production line according to claim 3, characterized in that, The first support block (22) and the second support block (23) are arranged to be relatively close to or far from each other; the first support block (22) and the second support block (23) are connected by a conjugate motion mechanism so that when the first support block (22) and the second support block (23) approach or separate from each other, their moving directions are opposite and the moving distances are the same.

5. The inlet device of the rolling mill production line according to claim 2, characterized in that, The straightening mechanism (2) includes a straightening machine base (24) and a swing arm (25), and the pressing block (21), the first support block (22) and the second support block (23) are arranged on the upper surface of the swing arm (25); the swing arm (25) is rotatably connected to the straightening machine base (24) through a first pin shaft (26), and the first pin shaft (26) is perpendicular to the upper surface of the swing arm (25).

6. The entrance device of the rolling mill production line according to claim 1, characterized in that, The loop (3) includes a first pressing roller group and a second pressing roller group; the first pressing roller group includes two first pressing rollers (31) with parallel axes, and the second pressing roller group includes two second pressing rollers (32) with parallel axes; Wherein, the axis of the first pressing roller (31) is perpendicular to the axis of the second pressing roller (32); a first channel (302) for the rolling raw material to pass through is formed between the two first pressing rollers (31), and a second channel (303) for the rolling raw material to pass through is formed between the two second pressing rollers (32), and the first channel (302) and the second channel (303) together form the discharge port (301).

7. The entrance device of the rolling mill production line according to claim 6, characterized in that, The first channel (302) is located on the side of the second channel (303) close to the feeding station.

8. The inlet device of the rolling mill production line according to claim 6, characterized in that, The ratio of the width D1 of the first channel (302) to the width D2 of the second channel (303) satisfies 0.2 ≤ D1 / D2 ≤ 0.

3.

9. The entrance device of the rolling mill production line according to any one of claims 6 to 8, characterized in that, The axis of the first pressing roller (31) is arranged in the horizontal direction, and the axes of the two first pressing rollers (31) are staggered from each other; the axis of the second pressing roller (32) is arranged in the vertical direction, and the axis of the first pressing roller (31) is coplanar with the plane where the axes of the two second pressing rollers (32) are located; A plurality of proximity switches (33) are provided on the first pressing roller (31) that is relatively far from the feeding mechanism in the first pressing roller group. The proximity switches (33) are arranged on the side of the first pressing roller (31) close to the feeding mechanism, and the proximity switches (33) are arranged towards the first channel (302). The plurality of proximity switches (33) are arranged along the axis of the first pressing roller (31); the proximity switches (33) at least include a first switch (331), a second switch (332) and a third switch (333) arranged in sequence. The second switch (332) corresponds to the center of the discharge port (301), and the first switch (331) is located on the side of the second switch (332) close to the straightening mechanism (2); The feeding speed of the rolling raw material at the feeding station is adjusted according to the detection results of the plurality of proximity switches (33). Among them, the feeding speed of the rolling raw material slows down in response to the first switch (331) detecting the rolling raw material; the feeding speed of the rolling raw material speeds up in response to the third switch (333) detecting the rolling raw material.

10. A rolling mill production line, characterized in that, It includes the mill production line inlet device according to any one of claims 1 to 9, and a continuous rolling mill unit, wherein the discharge port (301) faces the inlet of the continuous rolling mill unit.

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