Molding production line, high-strength waste heat molding machine and roller sleeve replacement method thereof

Abstract

The present application relates to a kind of forming production line, high-strength waste heat forming machine and its roller sleeve replacement method, the machine includes rack assembly, transmission shaft assembly, flat roller assembly and vertical roller assembly, the flat roller assembly and vertical roller assembly are adjusted by horizontal position through push-pull device, the transmission shaft assembly is adjusted by up and down position through lifting device, the vertical roller assembly also includes vertical roller lifter and is adjusted by vertical position, and the rack assembly is equipped with roller replacement device outside.When there are two forming channels, the vertical roller assembly of two forming channels is symmetric or alternately staggered arrangement, and different forming machine production lines are arranged by multiple methods.The present application can realize the quick, accurate, automatic adjustment of forming roller, and the quick replacement of roller sleeve, improve production efficiency and product quality, and reduce production cost.The present application is suitable for producing open or closed section steel, and the size, shape and position of forming channel can be adjusted by automatic control mode, so that a set of equipment is suitable for different specifications of section steel production.

Description

Technical Field

[0001] This invention belongs to the technical field of profile steel production equipment, and relates to a forming production line, a high-strength waste heat forming machine and its roller sleeve replacement method. Background Technology

[0002] High-strength residual heat forming involves directly utilizing the high-temperature residual heat after slab rolling to roll-form heavy structural steel. Currently, cold forming of structural steel uses a single-strand process to produce small, lightweight products. The forming roll position and pressure adjustment equipment is relatively simple, relying on manual or mechanical adjustments, and cannot be intelligently controlled online, resulting in poor quality and low production efficiency. Existing technologies, whether for cold or hot bending forming equipment, make it difficult to adjust the position of the forming rolls on the roll press, or the structure is relatively complex. For dual-strand roll forming machines, the adjustment difficulty is even greater, and the downtime for changing roll sleeves is long, increasing production costs.

[0003] In addition, because the center line distance between the two forming channels of the dual-flow forming machine is small (minimum about 400mm), when four vertical rollers are arranged on a single drive shaft, the adjacent vertical rollers of the two channels will interfere and affect the strength. The existing solution is to install horizontal roller forming machines and vertical roller forming machines separately at the front and rear. Although this method can solve the interference problem, it has problems such as more roller replacement parts, high equipment cost, long equipment layout distance, and reduced thermoforming temperature affecting forming quality. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to solve the above problems and provide a molding production line, a high-strength waste heat molding machine and a method for replacing the roller sleeve.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A high-strength waste heat forming machine includes a frame assembly and two drive shaft assemblies arranged vertically and parallel within the frame assembly, as well as a flat roller assembly and a vertical roller assembly that cooperate with each other to form a forming channel on the drive shaft assemblies. The two ends of the drive shaft assemblies are fixed to the frame assembly via frame bearing seats, and the frame bearing seats are detachably connected to the frame assembly. The flat roller assembly and the vertical roller assembly are slidable along the axial direction of the drive shaft assembly. Each flat roller assembly and vertical roller assembly is provided with a push-pull device located on the periphery of the frame assembly. One end of the push-pull device is connected to the flat roller assembly or the vertical roller assembly, and the other end is connected to the frame assembly or the frame bearing seat assembly. The horizontal position of each vertical roller assembly and flat roller assembly can be independently adjusted through its respective connected push-pull device.

[0007] Furthermore, the push-pull devices on the flat roller assembly and the vertical roller assembly are arranged in pairs, located at the top and bottom of the frame assembly, or on both sides of the frame assembly, respectively.

[0008] Furthermore, the frame assembly is provided with two forming channels, and the flat roller assembly and vertical roller assembly in each forming channel are independently adjusted by their respective connected push-pull devices.

[0009] Furthermore, the push-pull actuators used to drive and adjust the same molding channel are all located on the same side of the molding channel.

[0010] Furthermore, a lifting device is provided between the frame bearing seat and the frame assembly. The lifting device drives the frame bearing seat to move up and down, thereby driving the transmission shaft assembly to move up and down, and adjusting the vertical distance between the two transmission shaft assemblies and the flat roller assembly.

[0011] Furthermore, the vertical roller assembly includes a vertical roller, a vertical roller bearing housing assembly, a vertical roller lifter, and a guide rod;

[0012] The guide rod is fixedly mounted on the frame bearing seat assembly and arranged parallel to the drive shaft assembly; the vertical roller bearing seat assembly is slidably mounted on the guide rod, the vertical roller is mounted on the vertical roller bearing seat assembly, the push-pull device is connected to the vertical roller bearing seat assembly, and the vertical roller bearing seat assembly slides along the guide rod under the drive of the push-pull device to realize the horizontal position adjustment of the vertical roller.

[0013] The vertical roller and the vertical roller bearing seat are assembled in a vertical sliding fit; the vertical roller lifter is fixedly mounted on the vertical roller bearing seat assembly and connected to the vertical roller, driving the vertical roller to move up and down along the vertical roller bearing seat assembly to realize the vertical position adjustment of the vertical roller.

[0014] Furthermore, the vertical rollers are assembled in pairs on both sides of the forming channel, located on the entrance side and / or exit side or in the middle of the forming channel; when there are two forming channels, the vertical roller assemblies of the two forming channels are arranged symmetrically or alternately staggered.

[0015] Furthermore, the external operating side of the frame is equipped with a roller changing device; the pusher-pull mechanism uses automatic control to adjust the size, shape, and position of the forming channel, thus enabling one set of equipment to be used for the production of steel profiles of different specifications. The pusher-pull mechanism and the vertical roller lifter are hydraulic cylinders or electric push rods, and both are equipped with displacement sensors for precise position control.

[0016] A method for replacing the roller sleeve of a high-strength waste heat forming machine as described above: when the pusher is connected to the frame bearing seat assembly, the lifting device is first disengaged from the frame bearing seat assembly, and then the pusher and the upper and lower drive shaft assemblies, the vertical roller assembly, and the horizontal roller assembly are pushed and pulled into and out of the frame assembly as a whole using the roller changing device. The pusher and the upper and lower roller systems are pushed and pulled into and out of the frame assembly as a whole for overall replacement.

[0017] When the push-pull device is connected to the frame assembly, first disconnect the push-pull device from the vertical roller assembly and the horizontal roller assembly respectively, and disconnect the lifting device from the frame bearing seat. Then, use the roller changing device to push and pull the upper and lower drive shaft assemblies with the vertical roller assembly and the horizontal roller assembly into and out of the frame assembly without replacing the push-pull device. After the new upper and lower roller system is installed, it is reconnected to the push-pull device.

[0018] A forming production line includes one or more high-strength waste heat forming machines for producing open or closed steel sections; when there are two forming channels, the multiple high-strength waste heat forming machines are arranged with different vertical roller positions to form a production line suitable for steel sections of different shapes.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. In this invention, the vertical and horizontal roller assemblies forming the forming channel can be adjusted online in both vertical and horizontal directions via push-pull devices. Each forming roller can be adjusted individually or in conjunction with other rollers, laying the foundation for intelligent control. The height adjustability of the forming rollers makes this invention suitable for both open and closed profile forming production.

[0021] 2. This invention achieves complex functions with a simple structure, breaking through the traditional design thinking of achieving complex functions through structural superposition. The push-pull device and the drive shaft are assembled separately and installed independently, making the structure simpler and reducing the difficulty in processing, manufacturing and assembly. At the same time, the push-pull device can be arranged in various ways, and can be replaced as a whole or in parts. The push-pull device can be reused, reducing the number of replacement parts and lowering the cost of use.

[0022] 3. The vertical roller assembly in this invention can be installed on the drive shaft or on both sides of the drive shaft, making full use of the limited frame space without reducing strength. The vertical rollers are arranged in an alternating pattern to form different types of forming machines, and these different forming machines are then arranged in different ways to form a production line, thus producing different products.

[0023] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0024] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein:

[0025] Figure 1 A schematic diagram of a molding production line, a high-strength waste heat molding machine, and its roller sleeve replacement method;

[0026] Figure 2 for Figure 1 The right-side view;

[0027] Figure 3 for Figure 1 PP view (when operating with vertical rollers);

[0028] Figure 4 This is a schematic diagram of the vertical roller assembly.

[0029] Figure 5 This is a schematic diagram of the vertical roller assembly.

[0030] Figure 6 for Figure 1 PP view (without vertical rollers operating);

[0031] Figure 7 for Figure 1 Top view (arrangement of guide rods, arrangement of upper and lower push-pull devices);

[0032] Figure 8 for Figure 1 Top view (push-pull assembly connected to bearing housing + frame (working state));

[0033] Figure 9 for Figure 1 Top view (push-pull device connected to bearing housing + frame (roller changer open));

[0034] Figure 10 This is a schematic diagram of a continuous forming unit.

[0035] Figure 11 This is a schematic diagram showing the various arrangement positions of the vertical rollers in the high-strength waste heat forming machine of the present invention.

[0036] Reference numerals: 110-Drive shaft assembly; 120-Frame bearing housing assembly; 130-Vertical roller bearing housing assembly; 140-Horizontal roller assembly; 150-Push-pull device; 160-Guide rod; 170-Balancing device; 200-Vertical roller assembly; 210-Vertical roller lifter; 211-Cylinder rod; 212-Cylinder body; 300-Lifting device; 400-Axial positioning device; 500-Frame assembly; 600-Transmission device; 700-Roll changing device. Detailed Implementation

[0037] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0038] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0039] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0040] Please see Figures 1-9 This is a high-strength waste heat forming machine, comprising a frame assembly 500 and two drive shaft assemblies 110 arranged vertically and parallel within the frame assembly 500, and a flat roller assembly 140 and a vertical roller assembly 200 arranged on the drive shaft assemblies 110 to cooperate with each other to form a forming channel. The two ends of the drive shaft assemblies 110 are fixed to the frame assembly 500 through frame bearing seat assemblies 120, and the frame bearing seat is detachably connected to the frame assembly 500. The flat roller assembly 140 and the vertical roller assembly 200 can slide along the axial direction of the drive shaft assembly 110. Each of the flat roller assembly 140 and the vertical roller assembly 200 is provided with a pusher / puller 150 located on the periphery of the frame assembly 500. One end of the pusher / puller 150 is connected to the flat roller assembly 140 or the vertical roller assembly 200, and the other end is connected to the frame assembly 500 or the frame bearing seat assemblies 120. The horizontal position of each vertical roller assembly 200 and the flat roller assembly 140 can be independently adjusted by their respective connected pusher / pullers 150.

[0041] The frame assembly 500 has two forming channels. The flat roller assembly 140 and the vertical roller assembly 200 in each forming channel are independently adjusted by their respective push-pull devices 150. The push-pull devices 150 used to drive and adjust the same forming channel are all located on the same side of the forming channel.

[0042] A lifting device 300 is provided between the frame bearing housing and the frame assembly 500. The lifting device 300 adopts a hydraulic cylinder. The lifting device 300 drives the frame bearing housing to move up and down, thereby driving the transmission shaft assembly 110 to move up and down, and adjusting the vertical distance between the flat roller assemblies 140 on the two transmission shaft assemblies 110.

[0043] The vertical roller assembly 200 includes a vertical roller, a vertical roller bearing housing assembly 130, a vertical roller lifter 210, and a guide rod 160. The guide rod 160 is fixedly mounted on the frame bearing housing assembly 120 and arranged parallel to the drive shaft assembly 110. The vertical roller bearing housing assembly 130 is slidably mounted on the guide rod 160, the vertical roller is mounted on the vertical roller bearing housing assembly 130, and a push-pull device 150 is connected to the vertical roller bearing housing assembly 130. The vertical roller bearing housing assembly 130 slides along the guide rod 160 under the drive of the push-pull device 150 to achieve horizontal position adjustment of the vertical roller.

[0044] The vertical roller bearing housing assembly 130 is provided with vertical mounting holes. The vertical roller is installed in the mounting holes and slides vertically with the vertical roller bearing housing assembly 130. The vertical roller lifting device 210 adopts a hydraulic cylinder. The cylinder body 212 is fixedly installed on the vertical roller bearing housing assembly 130, and the cylinder rod 211 is connected to the vertical roller, driving the vertical roller to move up and down along the vertical roller bearing housing assembly 130 to realize the vertical position adjustment of the vertical roller.

[0045] There are two assembly methods for vertical rollers: one is to assemble the vertical roller with a bearing sleeve and the vertical roller shaft, with both ends of the vertical roller shaft assembled with bearing seats (see...). Figure 4 Secondly, the two ends of the integral vertical roller are respectively assembled with bearings, and the two end bearings are then respectively assembled with bearing seats (see...). Figure 5 ).

[0046] In this embodiment, both the push-pull device 150 and the vertical roller lifter 210 are equipped with displacement sensors to accurately control their positions.

[0047] A transmission device 600 is connected to the drive shaft assembly 110. The transmission device 600 includes a motor, a reducer, a universal joint, a universal joint positioning device, connecting parts, etc., and serves as a power source.

[0048] A balancing device 170 is installed between the upper and lower frame bearing housing assemblies 120. One end of the balancing device 170 is slidably connected to the upper frame bearing housing assembly 120, and the other end is fixedly connected to the upper frame bearing housing assembly 120.

[0049] The machine frame assembly 500 is equipped with a roller changing device 700 on the external operating side. The roller changing device 700 is an existing mature equipment, including an internal roller changing track, an external pusher / puller 150, a roller changing platform, a transverse platform, connecting parts, etc.

[0050] An axial positioning device 400 is also installed on the frame assembly 500. The axial positioning device 400 includes a push-pull member 150 and a baffle. The push-pull member 150 is fixedly installed on the frame assembly 500, and the baffle is connected to the push-pull member 150 and slidably installed on the frame assembly 500, perpendicular to the drive shaft assembly 110. The axial positioning device 400 is used for axial positioning during the installation of the drive shaft assembly 110. By extending the baffle into the positioning groove on the drive shaft, it ensures that the drive shaft is installed in place, thereby locking the position.

[0051] The high-strength waste heat forming machine is used to produce open or closed steel profiles. The pusher-pull device 150 uses an automatic control method to adjust the size, shape and position of the forming channel, so that one set of equipment can be used to produce steel profiles of different specifications.

[0052] Please see Figure 6 , 7 The push-pull devices 150 on the flat roller assembly 140 and the vertical roller assembly 200 are arranged in pairs, located at the top and bottom of the frame assembly 500, or on both sides of the frame assembly 500, respectively. When the push-pull devices 150 are located on both sides of the frame assembly 500, the push-pull devices 150 are installed in a hinged manner, allowing for angular swinging, thus facilitating assembly and disassembly.

[0053] The roller sleeve replacement method for the high-strength waste heat forming machine in this embodiment allows for the selection of two replacement options as needed:

[0054] When the push-pull device 150 is connected to the frame bearing housing assembly 120, first disconnect the lifting device 300 from the frame bearing housing assembly 120, and then use the roller changing device 700 to push and pull the push-pull device 150, the upper and lower drive shaft assemblies 110, the vertical roller assembly 200, and the horizontal roller assembly 140 into and out of the frame assembly 500 as a whole. The push-pull device 150 and the upper and lower roller systems are pushed and pulled into and out of the frame assembly 500 as a whole for replacement. The overall replacement of the push-pull device 150 can realize quick entry and exit replacement and reduce downtime.

[0055] When the push-pull device 150 is connected to the frame assembly 500, it is first disengaged from the vertical roller assembly 200 and the horizontal roller assembly 140, and the lifting device 300 is disengaged from the frame bearing seat. Then, the roller changing device 700 is used to push and pull the upper and lower drive shaft assemblies 110, vertical roller assembly 200, and horizontal roller assembly 140 into and out of the frame assembly 500 without replacing the push-pull device 150. After the new upper and lower roller system is installed, it is reconnected to the push-pull device 150. The push-pull device 150 can be disengaged from the upper and lower roller system bearing seat assemblies for replacement without disassembling the connection lines or pipes of the push-pull device 150. The adjustment device requires fewer spare parts, resulting in lower costs.

[0056] Please see Figure 10 This is a forming production line, comprising multiple high-strength waste heat forming machines arranged sequentially in this embodiment. It utilizes the high-temperature waste heat from hot rolling to produce open or closed profiles.

[0057] Please see Figure 11 In a dual-forming-channel continuous forming machine, the vertical rollers of the two forming channels are arranged symmetrically or alternately. The staggered arrangement of the vertical rollers forms different forming machines, and the different forming machines are further arranged in different ways to form a production line, which can produce different products.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A high-strength waste heat forming machine, comprising a frame assembly and two drive shaft assemblies arranged vertically and parallel within the frame assembly, and a flat roller assembly and a vertical roller assembly disposed on the drive shaft assemblies and cooperating to form a forming channel, wherein both ends of the drive shaft assemblies are fixed to the frame assembly via frame bearing seats, and the frame bearing seats are detachably connected to the frame assembly, characterized in that: The flat roller assembly and the vertical roller assembly can slide upward along the axial direction of the drive shaft assembly; both the flat roller assembly and the vertical roller assembly are provided with push-pull devices located on the periphery of the frame assembly. One end of the push-pull device is connected to the flat roller assembly or the vertical roller assembly, and the other end is connected to the frame assembly or the frame bearing seat assembly. The horizontal position of each vertical roller assembly and the flat roller assembly can be independently adjusted by their respective connected push-pull devices. A lifting device is provided between the frame bearing seat and the frame assembly. The lifting device drives the frame bearing seat to move up and down, thereby driving the transmission shaft assembly to move up and down and adjusting the vertical distance between the two transmission shaft assemblies and the flat roller assembly. The vertical roller assembly includes a vertical roller, a vertical roller bearing housing assembly, a vertical roller lifter, and a guide rod; The guide rod is fixedly mounted on the frame bearing seat assembly and arranged parallel to the drive shaft assembly; the vertical roller bearing seat assembly is slidably mounted on the guide rod, the vertical roller is mounted on the vertical roller bearing seat assembly, the push-pull device is connected to the vertical roller bearing seat assembly, and the vertical roller bearing seat assembly slides along the guide rod under the drive of the push-pull device to realize the horizontal position adjustment of the vertical roller. The vertical roller and the vertical roller bearing seat are slidably fitted vertically; the vertical roller lifter is fixedly mounted on the vertical roller bearing seat assembly and connected to the vertical roller, driving the vertical roller to move up and down along the vertical roller bearing seat assembly to achieve vertical position adjustment of the vertical roller. The machine frame is equipped with a roller changing device on the external operating side; the pusher and puller adopt an automatic control method to adjust the size, shape and position of the forming channel, so that one set of equipment can be used for the production of steel profiles of different specifications; the pusher and puller and the vertical roller lifter are hydraulic cylinders or electric push rods, and both are equipped with displacement sensors.

2. The high-strength waste heat forming machine according to claim 1, characterized in that: The push-pull devices on the flat roller assembly and the vertical roller assembly are arranged in pairs, located at the top and bottom of the frame assembly, or on both sides of the frame assembly.

3. The high-strength waste heat forming machine according to claim 1, characterized in that: The frame assembly has two forming channels, and the flat roller assembly and vertical roller assembly in each forming channel can be adjusted independently through their respective push-pull devices.

4. The high-strength waste heat forming machine according to claim 3, characterized in that: The push-pull actuators used to drive and adjust the same molding channel are all located on the same side of the molding channel.

5. The high-strength waste heat forming machine according to claim 1, characterized in that: The vertical rollers are assembled in pairs on both sides of the forming channel, located on the entrance side and / or exit side or in the middle of the forming channel; when there are two forming channels, the vertical rollers of the two forming channels are arranged symmetrically or alternately.

6. A method for replacing the roller sleeve of a high-strength waste heat forming machine as described in any one of claims 1 to 5, characterized in that: When the push-pull device is connected to the frame bearing seat assembly, first disconnect the lifting device from the frame bearing seat assembly, and then use the roller changing device to push and pull the push-pull device, the upper and lower drive shaft assemblies, the vertical roller assembly, and the horizontal roller assembly as a whole into and out of the frame assembly. The push-pull device and the upper and lower roller systems are pushed and pulled into and out of the frame assembly as a whole for overall replacement. When the push-pull device is connected to the frame assembly, first disconnect the push-pull device from the vertical roller assembly and the horizontal roller assembly respectively, and disconnect the lifting device from the frame bearing seat. Then, use the roller changing device to push and pull the upper and lower drive shaft assemblies with the vertical roller assembly and the horizontal roller assembly into and out of the frame assembly without replacing the push-pull device. After the new upper and lower roller system is installed, it is reconnected to the push-pull device.

7. A molding production line, characterized in that: Includes one or more high-strength waste heat forming machines as described in any one of claims 1 to 5, used for producing open or closed steel sections; when there are two forming channels, multiple high-strength waste heat forming machines are arranged with different vertical roller positions to form a production line suitable for steel sections of different shapes.

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