A finishing mill and finishing mill train

Abstract

The application provides a finishing mill and a finishing mill set, and belongs to the technical field of production. The finishing mill comprises a rack, a regulating roller, an adjusting frame, a supporting frame and a finishing roller group. The regulating roller is arranged on the rack, the adjusting frame is hingedly arranged on the rack, the adjusting frame comprises two parallel and spaced adjusting rods, and the two ends of the regulating roller are rotationally connected with the adjusting rods. The supporting frame is fixedly arranged on the adjusting frame, the supporting frame comprises a plurality of parallel and spaced supporting rods, the supporting rods are arranged between the two adjusting rods, an abutting convex part is integrally arranged on one end of the supporting rod away from the regulating roller, the upper end surface of the abutting convex part protrudes from the lower end surface of the abutting convex part along the extension direction of the supporting rod, a supporting plate is detachably arranged on the supporting rod, and the end part of the supporting plate is provided with an abutting concave part for plug-in cooperation with the abutting convex part. The advantage is that the abutting convex part is integrally arranged on the supporting rod, the matching abutting concave part is arranged on the supporting plate, and the plug-in cooperation of the two parts realizes the rapid positioning of the supporting plate.

Description

Technical Field

[0001] This invention belongs to the field of production technology, and in particular relates to a finishing mill and a finishing mill unit. Background Technology

[0002] The finishing mill is a key piece of equipment in a metal rolling production line, used to continuously roll workpieces in multiple passes to obtain finished workpieces with precise dimensions and good surface quality. Finishing mills are typically equipped with adjusting rolls (such as looper rolls), whose function is to dynamically adjust the tension of the workpiece between the stands, preventing defects such as steel piling or pulling caused by tension fluctuations. In existing technologies, the adjusting roll is often mounted on a swinging adjusting frame, which is driven by a drive component (such as a hydraulic cylinder) to swing around a hinge point, thereby changing the relative position between the adjusting roll and the finishing roll group. Support plates are also fixedly installed on the adjusting frame to form a material support plane, preventing the workpiece from sag or vibrating under its own weight and scraping against the stands, affecting rolling stability and surface quality. However, most existing support plates are fixedly connected to the adjusting frame. Once the support plate wears down due to long-term use, or if it needs to accommodate different workpiece specifications (such as changes in width or material), replacing the support plate is extremely inconvenient, usually requiring the entire adjusting frame to be removed, resulting in long downtime and high maintenance costs. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a finishing mill with a support plate that can be quickly disassembled and assembled and operates stably.

[0004] The objective of this invention can be achieved through the following technical solution: a finishing mill, comprising: The frame is equipped with a set of precision rolling rolls; An adjusting roller is mounted on the frame, and an adjusting frame is hinged to the frame. The adjusting frame includes two parallel and spaced adjusting rods, and the two ends of the adjusting roller are rotatably connected to the adjusting rods respectively. A support frame is fixedly mounted on the adjusting frame. The support frame includes multiple parallel and spaced support rods. Each support rod is positioned between two adjusting rods. An abutment protrusion is integrally provided at the end of each support rod away from the adjusting roller. Along the extension direction of the support rod, the upper end face of the abutment protrudes beyond the lower end face of the abutment protrusion. A support plate is detachably mounted on each support rod. An abutment recess is provided at the end of each support plate for insertion and engagement with the abutment protrusion. The upper end faces of all the support plates are coplanar. A drive unit, which is mounted on the frame and is connected to the adjustment frame in a transmission manner, is used to drive the adjustment frame to swing about its hinge point.

[0005] In the aforementioned finishing mill, a mounting rod is rotatably mounted on the frame, the driving component is connected to the mounting rod in a transmission manner, the ends of the two adjusting rods away from the adjusting roller are respectively fixedly connected to the mounting rod, and multiple support rods are fixedly arranged at intervals along the axial direction of the mounting rod.

[0006] In the aforementioned finishing mill, a locking frame is fixedly installed on the frame, and a locking member is fixedly installed on the adjusting frame. The locking member can lock or unlock relative to the locking frame, and the locking member has a first locking position and a second locking position. When the locking element is in the first locking position, the support plate is in a horizontal state; and when the locking element is in the second locking position, the support plate is tilted upward relative to the horizontal surface.

[0007] In the aforementioned finishing mill, the locking member includes a locking rod, and along the length direction of the locking rod, a first locking part and a second locking part are respectively provided at both ends of the locking rod; the first locking part or the second locking part can be selectively locked and connected to the locking frame.

[0008] In the aforementioned finishing mill, when the support plate is in a horizontal direction, the upper surface of the support plate is lower than the top of the adjusting roller.

[0009] In the aforementioned finishing mill, a cooling section is provided on the frame. The cooling section includes a hollow cooling rod. Along the axial direction of the cooling rod, multiple spray sections are spaced apart on the cooling rod, and the spray direction of each spray section points to the axis of the corresponding finishing roll.

[0010] In the aforementioned finishing mill, an adjustment frame is hinged to the frame. The adjustment frame includes a connecting plate, and the end of the connecting plate is bent to form a water guide section. The water guide section faces the finishing roll and is spaced apart from the corresponding finishing roll. The cooling section is fixedly mounted on the connecting plate.

[0011] In the aforementioned finishing mill, in the horizontal direction, the width of the water guide section is greater than the width of the material guide channel on the stand.

[0012] In the aforementioned finishing mill, a water-blocking part is provided on the water guide section. The water-blocking part protrudes from the water guide section, thereby forming a step between the water-blocking part and the water guide section. There are multiple cooling rods, and the projections of the multiple cooling rods in the direction of gravity do not overlap. The water-blocking part is configured such that when water flows through the water guide section and reaches the step, the step causes the water to flow out along the lateral edge of the step.

[0013] A finishing mill unit, comprising the aforementioned finishing mill.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: by integrally setting an abutting protrusion on the support rod and setting a matching abutting recess on the support plate, the two are interlocked to achieve rapid positioning of the support plate; and the upper end face of the abutting protrusion protrudes beyond its lower end face, so that the abutting protrusion forms an inclined abutting surface in the vertical direction. When the support plate is subjected to the frictional force of the workpiece moving forward (rolling direction), the abutting recess and the abutting protrusion are pressed tighter and tighter, forming a self-locking tendency, effectively preventing the support plate from accidentally coming off or shifting during use, and ensuring the long-term stability of the support plane. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a finishing mill; Figure 2 yes Figure 1 Enlarged structural diagram at point A; Figure 3 yes Figure 1 Assembly diagram of the middle regulating roller and support frame; Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure; Figure 5 This is a schematic diagram of the three-dimensional structure of the support plate; Figure 6 This is a partial internal diagram of the rack; Figure 7 yes Figure 6 A schematic diagram of a partial cross-sectional structure; Figure 8 This is a schematic diagram of the assembly of the cooling unit and the adjustment frame.

[0016] In the diagram, 100 is the frame; 101 is the finishing roll; 102 is the mounting rod; 103 is the locking frame; 200 is the adjusting roll; 201 is the adjusting rod; 202 is the support rod; 203 is the abutting protrusion; 204 is the support plate; 205 is the abutting recess; 300 is the driving component; 400 is the locking rod; 401 is the first locking part; 402 is the second locking part; 500 is the cooling part; 501 is the spraying part; 502 is the adjusting frame; 503 is the connecting plate; 504 is the guard plate; 505 is the water guiding section; and 506 is the water blocking part. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0019] like Figures 1-8 As shown in the figure, this embodiment provides a finishing mill, including a frame 100, which is the main support structure of the finishing mill. A finishing roll group is installed on the frame 100 for finishing the workpiece. An adjusting roll 200 is installed on the frame 100. The adjusting roll 200 can support the workpiece and maintain it with appropriate tension, preventing the workpiece from piling up or pulling due to uneven tension.

[0020] To achieve position adjustment of the adjusting roller 200, an adjusting frame is hinged to the frame 100. Specifically, the adjusting frame includes two parallel and spaced-apart adjusting rods 201, one end of which is hinged to the frame 100, and the other end is a free end. Both ends of the adjusting roller 200 are rotatably connected to the free ends of the two adjusting rods 201, respectively. Thus, the adjusting roller 200 can swing up and down with the adjusting frame, thereby changing its relative height to the finishing roll group and achieving dynamic adjustment.

[0021] The support frame is fixedly mounted on the adjusting frame and is used to provide auxiliary support for the rolled piece during the finishing rolling process, preventing the rolled piece from sagging or shaking. For example... Figure 3 As shown, the support frame includes multiple parallel and spaced support rods 202. All support rods 202 are located between two adjusting rods 201 and are arranged in a linear interval.

[0022] In this embodiment, each support rod 202 has an integrally formed abutment protrusion 203 at one end away from the adjusting roller 200. Along the extending direction of the support rod 202, the upper end face of the abutment protrusion 203 protrudes beyond its lower end face. That is, the abutment protrusion 203 has an inclined abutment surface in the vertical direction. Each support rod 202 is detachably provided with a support plate 204, which is used to directly contact the rolled piece and provide support and guidance. Specifically, the end of the support plate 204 is provided with an abutment recess 205, the shape of which matches the abutment protrusion 203 for insertion and engagement with it. When the abutment recess 205 is fitted onto the abutment protrusion 203, the support plate 204 is precisely positioned on the support rod 202. Since the upper end face of the abutment protrusion 203 protrudes beyond its lower end face, the two parts, once inserted, form a self-locking tendency, preventing the support plate 204 from dislodging forward under the friction of the rolled piece. Simultaneously, the upper end faces of all support plates 204 are coplanar, collectively forming a flat support plane to ensure the smooth passage of the rolled piece.

[0023] The drive component 300 is mounted on the frame 100 and is connected to the adjusting frame via a transmission mechanism. The drive component 300 can be a hydraulic cylinder, a pneumatic cylinder, or an electric push rod, etc. It drives the adjusting frame to swing up and down around an axis, thereby causing the adjusting roller 200 and the support frame to move together.

[0024] Furthermore, in order to ensure reliable fixation and easy replacement of the support plate 204, the support rod 202 is connected to the support plate 204 by screws.

[0025] like Figure 3 As shown, a mounting rod 102 is rotatably mounted on the frame 100, and the mounting rod 102 can rotate around its own axis. A drive unit 300 is connected to the mounting rod 102. The ends of two adjusting rods 201 away from the adjusting roller 200 are respectively fixedly connected to the mounting rod 102. When the mounting rod 102 rotates, the adjusting rods 201 swing synchronously, thereby causing the adjusting roller 200 to swing up and down. Multiple support rods 202 are fixedly arranged at intervals along the axial direction of the mounting rod 102. That is, the ends of the support rods 202 are fixed to the mounting rod 102 and are arranged at equal intervals along the length direction of the mounting rod 102 (i.e., the width direction of the frame 100).

[0026] like Figure 2 , Figure 3 As shown, a locking frame 103 is fixedly mounted on the frame 100. A locking element is fixedly mounted on the adjusting frame, which can lock or unlock relative to the locking frame 103. The locking element has a first locking position and a second locking position. It should be noted that during the normal operation of the finishing mill, the locking element is always in the unlocked state to ensure that the drive component 300 can freely drive the adjusting frame to swing.

[0027] When the locking element is in the first locked position, the support plate 204 is horizontal. This position corresponds to the locked state when the finishing mill is shut down or undergoing maintenance. The operator adjusts the adjusting frame to a horizontal position using the drive component 300, and then operates the locking element to lock it with the locking frame 103, fixing the adjusting frame in this horizontal position. This prevents the adjusting frame from accidentally swinging due to its own weight or external forces after shutdown, and also facilitates maintenance of the finishing mill roll group 101 or other components.

[0028] When the locking element is in the second locking position, the support plate 204 is tilted upward relative to the horizontal surface. Specifically, the adjusting frame swings upward at an angle around the hinge mounting rod 102. The purpose of setting the second locking position is to facilitate the replacement of the support plate 204 and the adjusting roller 200. In this tilted posture, the operator can easily approach the connecting screw between the support plate 204 and the support rod 202 from above. On the other hand, after the adjusting frame tilts upward, the adjusting roller 200 also rises and moves accordingly, leaving more operating space below and around the adjusting roller 200. The operator can more easily disassemble the bearing seats or connecting parts at both ends of the adjusting roller 200 and remove the adjusting roller 200 from the adjusting rod 201 for replacement or maintenance.

[0029] As one specific embodiment of the locking component, the locking component includes a locking lever 400. Along the length direction of the locking lever 400, a first locking part 401 and a second locking part 402 are respectively provided at both ends of the locking lever 400. Two locking frames 103 are fixedly provided on the frame 100 and distributed at intervals in the vertical direction. The first locking part 401 or the second locking part 402 can selectively lock and connect with the corresponding locking frame 103.

[0030] In this embodiment, the locking lever 400 is hinged to the adjusting frame at its middle, allowing the locking lever 400 to swing around the hinge point. The upper locking frame 103 corresponds to the first locking position, and the lower locking frame 103 corresponds to the second locking position. By placing the two locking parts at both ends of the locking lever 400, and cooperating with the two vertically distributed locking frames 103, the operator can quickly switch between the two locking positions by simply making a small movement of the locking lever 400.

[0031] Specifically, the locking part includes locking holes at both ends of the locking rod 400, and a pin hole on the locking frame 103. When the adjusting frame swings to the first locking position or the second locking position, the corresponding locking hole aligns with the pin hole, and the adjusting frame can be locked by inserting the pin.

[0032] Furthermore, when the support plate 204 is in a horizontal state, its upper surface is lower than the top of the adjusting roller 200. Specifically, in a horizontal working posture, the highest point of the adjusting roller 200 is higher than the support plane formed by all the support plates 204. This ensures that the adjusting roller 200 is always in a dominant position, while the support plates 204 only serve as auxiliary supports, preventing the rolled piece from directly rubbing against the edges of the support plates 204 or causing jamming. Simultaneously, when the adjusting roller 200 drives the rolled piece to swing up and down, the upper surface of the support plate 204 is lower than the top of the adjusting roller 200, ensuring that the rolled piece will not be scratched or accumulate at the leading edge of the support plate 204, thereby guaranteeing the surface quality and stable tension control of the rolled piece.

[0033] In addition, to reduce the temperature of the finishing rolls during the finishing rolling process and prevent overheating from affecting rolling quality and roll life, a cooling section 500 is installed on the stand 100. For example... Figure 8 As shown, the cooling section 500 includes a hollow cooling rod. The cooling rod is arranged parallel to the axis of the finishing roll 101. A coolant inlet is provided at one end or in the middle of the cooling rod for introducing cooling water or other cooling media. Multiple spray sections 501 are spaced apart along the axial direction of the cooling rod. Each spray section 501 can be a nozzle or spray hole structure, with its spray direction pointing towards the axis of the corresponding finishing roll 101. Specifically, the outlet centerline of each spray section 501 intersects the axis of the corresponding finishing roll 101, ensuring that the cooling medium can be directly sprayed onto the working surface of the finishing roll 101.

[0034] An adjusting frame 502 is hinged to the frame 100. The adjusting frame 502 includes a connecting plate 503, the end of which is bent to form a water guide section 505. Specifically, the water guide section 505 is formed by bending the bottom end of the connecting plate 503 upwards or towards the finishing roll 101, facing the finishing roll 101, and is spaced apart from the corresponding finishing roll 101. This gap (as small as possible) is used to ensure that the water guide section 505 does not interfere with the rotation of the finishing roll 101, while effectively collecting and guiding the cooling water flowing down after being sprayed from the spray section 501, preventing the cooling water from splashing everywhere or flowing into non-target areas. The cooling sections 500 are all fixedly mounted on the connecting plate 503. That is, the cooling rod is fixed to the side of the connecting plate 503 and swings together with the adjusting frame 502.

[0035] Furthermore, such as Figure 6 As shown, in the horizontal direction, the width of the water guide section 505 is greater than the width of the material guide channel (the channel through which the rolled piece passes) on the stand 100. This ensures that all the cooling water sprayed from the spray section 501 and the cooling water flowing down from the finishing roll 101 are received by the water guide section 505 and guided to both sides, preventing the cooling water from dripping directly onto the surface of the rolled piece.

[0036] Of course, the frame 100 is also equipped with a drive unit that is connected to the adjustment frame 502. When it is necessary to adjust the spray angle or maintain the finishing roll 101, the drive unit drives the adjustment frame 502 to swing.

[0037] Furthermore, such as Figure 8As shown, protective plates 504 are also provided on both sides of the connecting plate 503. The protective plates 504 are used to prevent cooling water from splashing out from both sides of the connecting plate 503. At the same time, the length of the protective plates 504 is less than the length of the connecting plate 503, meaning that the protective plates 504 do not extend along the entire side of the connecting plate 503. The protective plates 504 can effectively block and guide the cooling water in the spray area, preventing it from splashing outwards and providing protection; while the gaps left at the ends of the protective plates 504 allow the collected cooling water to flow smoothly to both sides, without obstructing the water flow due to the excessive length of the protective plates 504.

[0038] Furthermore, a water-blocking part 506 is provided on the water-guiding section 505. The water-blocking part 506 protrudes from the water-guiding section 505, forming a step between the water-blocking part 506 and the water-guiding section 505. Specifically, the water-blocking part 506 can be a protrusion extending along the width direction of the water-guiding section 505, with its height higher than the surface of the water-guiding section 505, thus forming a vertical or inclined step structure at the junction of the two. There are multiple cooling rods, and the projections of the multiple cooling rods in the direction of gravity do not overlap. That is, the cooling rods are staggered in the vertical direction, so that the cooling water flowing down after spraying from the upper cooling rod will not drip directly onto the lower cooling rod, avoiding mutual interference and ensuring that each spray section 501 can independently and uniformly cool its corresponding finishing roll 101.

[0039] The water-blocking section 506 is configured such that when water flows through the water-guiding section 505 and reaches the step, the step causes the water to flow out along the lateral edge of the step. Specifically, after the cooling water sprayed from the spray section 501 is sprayed onto the finishing roll 101, it flows downward along the surface of the finishing roll 101 and finally converges onto the water-guiding section 505. The water flows downward along the surface of the water-guiding section 505. When it encounters the step formed by the water-blocking section 506, due to the obstruction of the step, the water flow cannot continue to advance along the extension direction of the water-guiding section 505 (i.e., towards the finishing roll 101), but is forced to turn and flow out along the lateral edge of the step (i.e., both sides in the width direction of the water-guiding section 505).

[0040] A finishing mill unit includes the aforementioned finishing mills, wherein there are multiple finishing mills arranged in a linear distribution.

[0041] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0043] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A finishing mill, characterized in that, include: The frame is equipped with a set of precision rolling rolls; An adjusting roller is mounted on the frame, and an adjusting frame is hinged to the frame. The adjusting frame includes two parallel and spaced adjusting rods, and the two ends of the adjusting roller are rotatably connected to the adjusting rods respectively. A support frame is fixedly mounted on the adjusting frame. The support frame includes multiple parallel and spaced support rods. Each support rod is positioned between two adjusting rods. An abutment protrusion is integrally provided at the end of each support rod away from the adjusting roller. Along the extension direction of the support rod, the upper end face of the abutment protrudes beyond the lower end face of the abutment protrusion. A support plate is detachably mounted on each support rod. An abutment recess is provided at the end of each support plate for insertion and engagement with the abutment protrusion. The upper end faces of all the support plates are coplanar. A drive unit, which is mounted on the frame and is connected to the adjustment frame in a transmission manner, is used to drive the adjustment frame to swing about its hinge point.

2. A finishing mill according to claim 1, characterized in that, A mounting rod is rotatably mounted on the frame. The driving component is connected to the mounting rod in a transmission manner. The ends of the two adjusting rods away from the adjusting roller are respectively fixedly connected to the mounting rod. Multiple support rods are fixedly arranged at intervals along the axial direction of the mounting rod.

3. A finishing mill according to claim 1, characterized in that, A locking frame is fixedly installed on the frame, and a locking member is fixedly installed on the adjusting frame. The locking member can lock or unlock relative to the locking frame, and the locking member has a first locking position and a second locking position. When the locking element is in the first locking position, the support plate is in a horizontal state; and when the locking element is in the second locking position, the support plate is tilted upward relative to the horizontal surface.

4. A finishing mill according to claim 3, characterized in that, The locking component includes a locking rod, and a first locking part and a second locking part are respectively provided at both ends of the locking rod along its length direction; the first locking part or the second locking part can be selectively locked to the locking frame.

5. A finishing mill according to claim 1, characterized in that, When the support plate is in a horizontal position, the upper surface of the support plate is lower than the top of the adjusting roller.

6. A finishing mill according to claim 1, characterized in that, The frame is provided with a cooling section, which includes a hollow cooling rod. Along the axial direction of the cooling rod, multiple spray sections are spaced apart on the cooling rod, and the spray direction of each spray section is directed towards the axis of the corresponding finishing roll.

7. A finishing mill according to claim 6, characterized in that, An adjustment frame is hinged to the frame. The adjustment frame includes a connecting plate. The end of the connecting plate is bent to form a water guide section. The water guide section faces the finishing roll and is spaced apart from the corresponding finishing roll. The cooling parts are all fixedly mounted on the connecting plate.

8. A finishing mill according to claim 7, characterized in that, In the horizontal direction, the width of the water guide section is greater than the width of the material guide channel on the frame.

9. A finishing mill according to claim 7, characterized in that, The water guide section is provided with a water blocking part, which protrudes from the water guide section, thereby forming a step between the water blocking part and the water guide section. There are multiple cooling rods, and the projections of the multiple cooling rods in the direction of gravity do not overlap. The water blocking part is configured such that when water flows through the water guide section and reaches the step, the step causes the water to flow out along the lateral edge of the step.

10. A finishing mill unit, characterized in that, The finishing mill includes any one of claims 1-9.

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