Head guiding and core rolling device special for steel rolling vertical coil

Abstract

The invention discloses a special head leading and core rolling device for a steel rolling vertical coil, and belongs to the technical field of steel rolling. A circular platform through hole is formed in the platform base; the gear device drives the platform base to rotate; the gear device and the through hole are in a coaxial relationship; the lifting mechanism is positioned below the gear device and drives the spline shaft to vertically move; the coiling assembly is used for coiling the strip steel and is mounted at the upper part of the spline shaft; the lower end of the spline shaft is connected with the lifting mechanism through a bearing, the upper end of the spline shaft penetrates into the platform through hole from bottom to top, and the platform through hole is provided with a vertical key groove matched with the spline shaft. By the adoption of the technical scheme, the technical problems that in the coil tightening process, workers guide and bend the head of a steel belt in a high-temperature environment, labor intensity is high, efficiency is low, and the production rhythm is affected can be solved.

Description

Technical Field

[0001] The invention belongs to the technical field of steel rolling, and in particular relates to a special lead-in coiling device for steel rolling. Background Art

[0002] As an important pillar industry of the national economy, the steel industry has always received much attention for its production efficiency and safety. In the steel production process, the coiling of strip steel is a crucial link, especially the application of vertical coilers, which greatly improves the coiling efficiency. However, the existing vertical coiling technology still has some problems in the process of feeding the head of the steel strip into the coil core.

[0003] At present, many steel companies still rely on manual operation when coiling strip steel. Operators need to hold steel pliers and guide and bend the head of the steel strip in a high temperature environment to feed the head of the steel strip into the coiling core. This operation method is not only labor-intensive, but also has great safety hazards due to the high temperature of the operating environment and the high temperature of the steel strip. Manual operation is also prone to operating errors, affecting production efficiency and product quality.

[0004] In view of the above problems, it is necessary to develop a new type of dedicated lead core device for rolling steel coils, which can replace the fixed narrow slit lead with the automatic opening and closing of the core petals of the coil, and the opening is much larger than the traditional narrow slit, which can guide and bend the head of the steel strip without manual work, ensuring that the steel strip can be accurately and efficiently fed into the coil core, thereby reducing labor intensity and improving operation safety and production efficiency. Through technological innovation, the automation and intelligence of the steel strip coiling process can be further realized, which is of great significance to improving the overall level of steel production.

[0005] The present invention proposes a special lead winding core device for rolling steel coils, aiming to solve the problems existing in the prior art. The special lead winding core device for rolling steel coils is not only simple in structure and low in cost, but also can significantly improve production efficiency and reduce manual labor intensity and operation risks. Its emergence will bring significant economic and social benefits to steel enterprises and promote technological progress and industrial upgrading in the steel industry. Summary of the invention

[0006] In view of the problems existing in the prior art, the present invention provides a special guide and core winding device for steel rolling to solve the technical problems of guiding and bending the head of the steel strip in a high temperature environment during the tight coiling process in the above-mentioned background technology, high labor intensity, low efficiency, and affecting the production rhythm.

[0007] The technical solution adopted by the present invention is:

[0008] A special lead-in coiling device for steel rolling, comprising:

[0009] Platform base; a circular platform through-hole is provided on the platform base;

[0010] A gear device for driving the platform base to rotate; the gear device and the through-hole are coaxial;

[0011] A lifting mechanism located below the gear device and driving the spline shaft to move vertically;

[0012] A coiling assembly for coiling the strip steel, the coiling assembly is installed on the upper part of the spline shaft;

[0013] The lower end of the spline shaft is connected to the lifting mechanism through a bearing, the upper end of the spline shaft penetrates into the platform through-hole from bottom to top, and the platform through-hole is provided with a vertical key groove for cooperating with the spline shaft.

[0014] Preferably, the platform base includes:

[0015] A support disk with an outer diameter of A 1 , and an inner diameter of A 2 ;

[0016] An intermediate pipe with an outer diameter of B 1 , and an inner diameter of B 2 ;

[0017] A lower end pipe with an outer diameter of C 1 , and an inner diameter of C 2 ; where:

[0018] A 1 > B 1 > C 1 ; A 2 = B 2 > C 2 ; A vertical key groove is provided inside the lower end pipe.

[0019] Preferably, the outer wall of the lower end pipe is fixedly connected to the inner wall of the gear device.

[0020] Preferably, the lifting mechanism includes a lifting hydraulic cylinder group and a turntable bracket, and the lower end of the spline shaft is connected to the turntable bracket through a bearing.

[0021] Preferably, the coiling assembly includes a coil core and core petals, the coil core includes a chassis with an outer diameter equal to A 2 , a plurality of arc-shaped coil chips are provided on the same circumference of the upper surface of the chassis, a gap is left between adjacent two coil chips, a plurality of core petals are located inside the plurality of coil chips, the coil chips and the core petals are connected by a rotating shaft, a key groove for connecting the spline shaft is provided on the chassis, and the top side wall of the spline shaft is hinged to the core petals through a ball head link assembly.

[0022] Preferably, the core petal comprises an arc-shaped petal body, a vertical shaft base for mounting a rotating shaft is arranged on one side of the inner wall of the petal body, and an articulated seat hinged to the ball head connecting rod assembly is arranged on the inner wall of the petal body.

[0023] Preferably, the chassis and the coil chip are an integrally formed structure.

[0024] Preferably, the number of the core sheets and the number of the core petals are both four.

[0025] Preferably, a spline bracket is provided above the turntable bracket, a sliding key device is provided above the spline bracket, and the lower end of the spline shaft passes through the sliding key device, the spline bracket and the turntable bracket in sequence, and is connected via a bearing.

[0026] Preferably, a photoelectric switch for detecting the position of the strip is provided on the winding assembly, and the photoelectric switch exchanges data with the PLC via a data line, and the PLC is connected to the driving motor of the gear device via an encoder; the PLC exchanges data with the driving mechanism of the lifting mechanism via the data line.

[0027] The advantages and positive effects of the present invention are:

[0028] The present invention relates to a coiling device for rolled steel. Its core components include a plurality of key devices installed on the base of a rotating platform. These devices obtain rotational power through a speed reducer gear device, enabling the entire rotating platform base to perform rotational motion. When the rotating platform base starts to rotate, the core, core petals, spline shaft, and sliding key device will rotate synchronously, thus realizing the coiling function. In addition, the base of the lifting hydraulic cylinder group is fixed to the equipment foundation. It does not rotate with the rotation of the equipment but specifically provides lifting power. The turntable bracket is connected to the shaft head of the spline shaft through a rolling bearing, ensuring the flexibility and stability of rotation. The lifting hydraulic cylinder group and the turntable bracket together constitute the lifting mechanism of the core device, enabling the core, core petals, spline shaft, and sliding key device to be lifted synchronously, and then completing the functions of coiling and uncoiling. The spline shaft and the sliding key device are jointly sleeved in the spline hole at the axis of the rotating platform base. They can rotate synchronously and also slide independently to complete their respective functions. The spline shaft slides along the spline hole at the axis of the platform base, synchronously driving the core to complete the lifting function, while the sliding key device slides up and down relative to the spline shaft to complete the opening and closing function of the core petals, which is the main component for realizing efficient head leading. The ball head link assembly connects the core petals and the sliding key device at the same time. It converts the sliding displacement of the sliding key device into the opening and closing displacement of the core petals, which is the core component with multi-angle adaptive function in the whole device. The core petal cylinder group and the spline bracket together form the actuator for the sliding key device to slide up and down relative to the spline shaft. The spline bracket is connected to the end of the sliding key device through a rolling bearing, ensuring that it only provides lifting power without rotating with the equipment. The innovation of the present invention lies in being able to effectively solve the technical problems such as difficult head leading and low efficiency in the traditional tight coiling process, thereby improving the efficiency and reliability of the entire coiling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 It is a three-dimensional structure diagram of a preferred embodiment of the present application;

[0031] Figure 2 It is a three-dimensional structure diagram of the platform base in a preferred embodiment of the present application;

[0032] Figure 3 It is a three-dimensional structure diagram of the core in a preferred embodiment of the present application;

[0033] Figure 4 It is a three-dimensional structure diagram of the core petals in a preferred embodiment of the present application;

[0034] Figure 5 This is a three-dimensional structural diagram of the ball head connecting rod assembly in the preferred embodiment of the present application.

[0035] Among them: 1. Platform base; 2. Winding core; 3. Core petal; 4. Ball head connecting rod assembly; 5. Spline shaft; 6. Lifting hydraulic cylinder group; 7. Turntable bracket; 8. Core petal cylinder group; 9. Spline bracket; 10. Sliding key device; 11. Gear device. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0037] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0038] See also Figures 1 to 5 , a special lead-in coiling device for steel rolling, comprising:

[0039] The platform base 1 is provided with a circular platform through hole; see Figure 2 The platform base 1 in this embodiment includes three parts from top to bottom, specifically:

[0040] The outer diameter is A 1 , inner diameter is A 2 Support plate;

[0041] The outer diameter is B 1 , inner diameter is B 2 The intermediate tube;

[0042] The outer diameter is C 1 , inner diameter is C 2 The lower end tube of

[0043] A 1 >B 1 >C 1 ; A 2 =B 2 >C 2 ; There is a vertical keyway starting inside the lower end tube.

[0044] To ensure the structural stability, the platform base 1 is an integrally formed structure.

[0045] The gear device 11 that drives the rotation of the platform base 1; the gear device 11 and the platform through-hole are coaxial, ensuring the accuracy and synchronism of rotation;

[0046] The lifting mechanism located below the gear device 11 that drives the vertical movement of the spline shaft 5; the design of this lifting mechanism enables the spline shaft 5 to move up and down smoothly and precisely;

[0047] The coiling assembly for coiling the strip steel, and the coiling assembly is installed on the upper part of the spline shaft 5; the setting of the coiling assembly makes the coiling process of the strip steel more efficient and stable;

[0048] The lower end of the spline shaft 5 is connected to the lifting mechanism through a bearing, and the upper end of the spline shaft 5 penetrates the platform through-hole from bottom to top. The platform through-hole is provided with a vertical keyway that cooperates with the spline shaft 5. Such a structural design not only ensures the stability and durability of the spline shaft 5, but also makes the operation of the entire device more flexible and convenient.

[0049] In the above embodiment, the outer wall of the lower end tube is fixedly connected to the inner wall of the gear device 11. In this way, when the gear device 11 rotates, it can drive the lower end tube to move synchronously, that is, the gear device 11 drives the platform base 1 to move synchronously.

[0050] The lifting mechanism includes a lifting hydraulic cylinder group 6 and a turntable bracket 7. The lower end of the spline shaft 5 is connected to the turntable bracket 7 through a bearing. To ensure the smoothness of the lifting process, the turntable bracket 7 is rectangular or oblong, and the lifting hydraulic cylinder group 6 is two, respectively located on both sides of the turntable bracket 7.

[0051] In the present invention, the described coiling assembly is composed of multiple parts, including a core 2 and core petals 3. The core 2 has an outer diameter equal to A 2The chassis 2-1, on the upper surface of this chassis 2-1, several arc-shaped coiling chips 2-2 are evenly arranged on the same circumference. These coiling chips 2-2 are designed with an appropriate gap between adjacent ones to ensure that they can perform the coiling operation flexibly. Inside these coiling chips 2-2 are several core petals 3, which are arranged at appropriate positions to cooperate with the coiling function of the core 2. The coiling chips 2-2 and the core petals 3 are connected by a rotating shaft, so as to ensure that the core petals 3 can rotate flexibly during the coiling process. In addition, a special keyway 2-4 is opened on the chassis 2-1, and this keyway 2-4 is designed to connect with the spline shaft 5. The top side wall of the spline shaft 5 is hinged to the core petals 3 through a ball head link assembly 4, and such a design enables the core petals 3 to operate more stably and precisely when coiling materials.

[0052] In the present invention, the design of the core petals 3 is crucial. It includes a petal body 3-1 with an arc shape. In order to ensure that the petal body 3-1 can be stably installed and perform the necessary rotational movements, a vertical shaft base 3-2 for installing the rotating shaft is specially designed on one side of its inner side wall. Such a design enables the core petals 3 to rotate flexibly around the rotating shaft, thereby realizing its predetermined function. In addition, a hinge seat 3-3 is arranged on the inner wall of the petal body 3-1, and this hinge seat 3-3 is designed to be hinged to the ball head link assembly 4. Through this hinged structure, the ball head link assembly 4 can cooperate closely with the core petals 3 to jointly complete the predetermined actions. The entire design not only considers the stability of the structure but also takes into account the flexibility of movement, ensuring the high-efficiency performance of the core petals 3 in practical applications.

[0053] The chassis 2-1 and the coiling chips 2-2 are of an integrally formed structure.

[0054] The number of both the coiling chips 2-2 and the core petals 3 is four.

[0055] Above the turntable bracket 7, there is a spline bracket 9. Above the spline bracket 9, there is a sliding key device 10. The lower end of the spline shaft 5 sequentially passes through the sliding key device 10, the spline bracket 9 and is connected to the turntable bracket 7 through a bearing.

[0056] On the coiling assembly, there is an optoelectronic switch for detecting the position of the strip steel. The optoelectronic switch conducts data interaction with the PLC through a data line. The PLC is connected to the drive motor of the gear device 11 through an encoder; the PLC conducts data interaction with the drive mechanism of the lifting mechanism through a data line.

[0057] The present invention mainly includes a rotating platform base installed on a steel rolling coiling device, which is provided with rotational power by a speed reducer gear device; when the rotating platform base rotates, the core, core segments, spline shaft, and sliding key device rotate synchronously to complete the coiling function; the base of the lifting hydraulic cylinder group is fixed on the equipment foundation and only provides lifting power without rotating with the equipment, and the turntable bracket and the spline shaft end are connected by a rolling bearing; the lifting hydraulic cylinder group and the turntable bracket form a lifting mechanism for the core device, and the core, core segments, spline shaft, and sliding key device are lifted synchronously to complete the functions of coiling and uncoiling; the spline shaft and the sliding key device are jointly sleeved in the spline hole at the axis of the rotating platform base, which can not only rotate synchronously but also slide independently to complete their respective functions; the spline shaft slides along the spline hole at the axis of the platform base to synchronously drive the core to complete the lifting function, and the sliding key device slides up and down relative to the spline shaft to complete the opening and closing function of the core segments, which is the main component for realizing efficient head leading; the ball head link assembly is simultaneously connected to the core segments and the sliding key device, which is the core component for converting the sliding displacement of the sliding key device into the opening and closing displacement of the core segments and has a multi-angle adaptive function at the same time; the core segment cylinder group and the spline bracket form an actuator for the sliding key device to slide up and down relative to the spline shaft, and the spline bracket and the end of the sliding key device are connected by a rolling bearing, so that it only provides lifting power without rotating with the equipment; the present invention can solve the technical problems such as difficult head leading and low efficiency in the traditional tight coiling process.

[0058] The process of realizing full-automatic coiling of the present invention includes:

[0059] 1. Initialization: The lifting cylinder group moves upward to lift the core to the working position;

[0060] 2. The rotating speed reducer rotates forward at a low speed. When the spline shaft triggers the position photoelectric switch during rotation, the rotation will stop running according to the set time. At this time, the core segment position is in the position to receive the head of the steel coil, completing the automatic positioning function of the core;

[0061] 3. The core segment cylinder group acts to open the core segments so that the head of the steel coil can enter;

[0062] 4. The guide plates on both sides of the steel strip channel close to play a guiding role in the entry of the head of the steel coil.

[0063] Working process:

[0064] 1. When the strip steel is fed into the channel by the pinch rolls and triggers the channel photoelectric position switch, the encoder on the pinch rolls will convert the rotation data into the position distance of the head of the strip steel reaching the core segments, and the core segments will close according to the PLC instruction to clamp the head of the strip steel;

[0065] 2. The coiling platform and the core rotate synchronously according to the set speed curve. At the same time, the pinch rolls are released, the guide plates on both sides are released, and the five-roll straightening system is retracted to carry out the coiling work;

[0066] 3. During the rewinding process, the five-roll straightening system automatically adjusts the rewinding tension according to the coiling load;

[0067] 4. When the photoelectric switch in the steel strip channel detects the signal of the steel strip tail, the rewinding platform immediately executes the deceleration and stop commands to complete the rewinding work;

[0068] 5. The core petals open, the core barrel descends, and the uncoiling process is completed;

[0069] 6. The lower limit signal of the core barrel triggers the steel coil pushing-away process, and the steel coil is pushed out;

[0070] 7. The rewinding system is initialized to complete a cycle.

[0071] The above are only the preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A special lead-in coiling device for steel rolling, characterized in that: include: A platform base (1); a circular platform through hole is provided on the platform base (1); A gear device (11) drives the platform base (1) to rotate; the gear device (11) and the through hole are in a coaxial relationship; A lifting mechanism located below the gear device (11) and driving the spline shaft (5) to move vertically; A coiling assembly for coiling the strip steel, wherein the coiling assembly is mounted on the upper part of the spline shaft (5); The lower end of the spline shaft (5) is connected to the lifting mechanism via a bearing, and the upper end of the spline shaft (5) penetrates the platform through hole from bottom to top, and the platform through hole is provided with a vertical keyway that matches the spline shaft (5).

2. The dedicated lead winding core device for steel rolling coiling according to claim 1 is characterized in that: The platform base (1) comprises: A support plate with an outer diameter of A1 and an inner diameter of A2; An intermediate tube with an outer diameter of B1 and an inner diameter of B2; The lower end tube has an outer diameter of C1 and an inner diameter of C2; wherein: A1>B1>C1; A2=B2>C2; A vertical keyway begins to be formed inside the lower end tube.

3. The dedicated lead winding core device for steel rolling coiling according to claim 1 is characterized in that: The outer wall of the lower end tube is fixedly connected to the inner wall of the gear device (11).

4. The dedicated lead winding core device for steel rolling coiling according to claim 1, characterized in that: The lifting mechanism comprises a lifting hydraulic cylinder group (6) and a turntable bracket (7), and the lower end of the spline shaft (5) is connected to the turntable bracket (7) via a bearing.

5. The dedicated lead winding core device for steel rolling coiling according to claim 2 is characterized in that: The winding assembly comprises a winding core (2) and core petals (3), the winding core (2) comprises a chassis (2-1) with an outer diameter equal to A2, a plurality of arc-shaped winding core plates (2-2) are arranged on the same circumference of the upper surface of the chassis (2-1), a gap is left between two adjacent winding core plates (2-2), a plurality of core petals (3) are located on the inner side of the plurality of winding core plates (2-2), the winding core plates (2-2) and the core petals (3) are connected by a rotating shaft, a keyway (2-4) connected to a spline shaft (5) is provided on the chassis (2-1), and the top side wall of the spline shaft (5) is hinged to the core petals (3) through a ball head connecting rod assembly (4).

6. The dedicated lead winding core device for steel rolling coiling according to claim 5, characterized in that: The core petal (3) comprises an arc-shaped petal body (3-1), a vertical shaft base (3-2) for mounting a rotating shaft is arranged on one side of the inner wall of the petal body (3-1), and an articulated seat (3-2) articulated to a ball head connecting rod assembly (4) is arranged on the inner wall of the petal body (3-1).

7. The dedicated lead winding core device for steel rolling coiling according to claim 5, characterized in that: The chassis (2-1) and the winding core sheet (2-2) are an integrally formed structure.

8. The dedicated lead winding core device for steel rolling coiling according to claim 5, characterized in that: The number of the core sheets (2-2) and the number of the core petals (3) are both four.

9. The dedicated lead winding core device for steel rolling coiling according to claim 4, characterized in that: A spline bracket (9) is provided above the turntable bracket (7), a sliding key device (10) is provided above the spline bracket (9), and the lower end of the spline shaft (5) passes through the sliding key device (10), the spline bracket (9) and the turntable bracket (7) in sequence and is connected via a bearing.

10. The dedicated lead winding core device for steel rolling coiling according to claim 1, characterized in that: A photoelectric switch for detecting the position of the strip is arranged on the winding assembly, and the photoelectric switch exchanges data with a PLC via a data line. The PLC is connected to a driving motor of a gear device (11) via an encoder; and the PLC exchanges data with a driving mechanism of a lifting mechanism via a data line.

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