Universal roll forming device and profile forming production line

Abstract

The present invention belongs to the technical field of steel section production and relates to a universal roll-forming device and a profile forming production line. The device comprises a frame, and a flat roller assembly and a vertical roller assembly arranged within the frame to form a forming channel. Both the vertical roller assembly and the flat roller assembly can achieve online adjustment of the vertical and horizontal positions. Each forming roller can be adjusted individually or in a coordinated manner. The device can be used in both hot forming and cold forming production lines. By replacing and assembling horizontal forming rollers, vertical forming rollers, and inclined passive forming rollers of different shapes, different types of dual-channel or single-channel forming machines or extrusion welding machines can be formed. The position and hole size of each forming roller can be adjusted online to produce various open or closed profiles.

Description

Technical Field

[0001] The invention belongs to the technical field of section steel production, and relates to a universal roll forming device and a section steel forming production line. Background Art

[0002] The cavity of the roll-forming device is constructed by the outer contours of each forming roller. In order to enable the same roll-forming device to process structural steels of different types and specifications, the positions of the forming rollers need to be adjusted online individually so that the size of the cavity changes.

[0003] Forming rollers are typically mounted on a drive shaft. Currently, a screw-nut mechanism is used to adjust the cavity size along the drive shaft's axial direction. This involves a nut for each forming roller, and a screw mounted on the roll-forming device. The screw and nut work in concert, rotating the screw to move the corresponding nut, which in turn moves the forming rollers. This method allows for adjustment of the cavity size along the drive shaft's horizontal and vertical rollers in a synchronous axial direction. However, due to the slender screws, high frictional resistance, and clearance between the nut and screw, adjustments typically require shutdown. In particular, the vertical rollers cannot be individually adjusted online, impacting product quality and production efficiency. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to solve the problem of adjusting the forming rollers of a roll-forming device, and to provide a universal roll-forming device and a profile forming production line, which can be set as a dual-channel or single-channel forming machine to achieve online precise adjustment or intelligent control of the position of each forming roller, thereby improving product quality and production efficiency.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A universal roll forming device comprises a frame, and a flat roller assembly and a vertical roller assembly arranged in the frame and combined to form a forming channel, the flat roller assembly comprising a transmission shaft and a flat roller arranged on the transmission shaft, both ends of the transmission shaft being rotatably arranged on a bearing seat assembly, the bearing seat assembly being connected to the frame; the vertical roller assembly comprising a vertical roller, a vertical roller frame, and a vertical roller lifting mechanism, the vertical roller frame being connected to the bearing seat assembly, the vertical roller and the vertical roller frame being fitted in a vertical sliding manner; the vertical roller lifting mechanism being fixed on the vertical roller frame and connected to the vertical roller, driving the vertical roller to move up and down along the vertical roller frame to achieve vertical position adjustment of the vertical roller.

[0007] Furthermore, the vertical roller assembly also includes a vertical roller push-pull mechanism and a guide rod. The guide rod is fixed on the bearing seat assembly and arranged parallel to the transmission shaft. The vertical roller frame is slidably arranged on the guide rod. One end of the vertical roller push-pull mechanism is connected to the vertical roller frame, and the other end is connected to the bearing seat assembly. The vertical roller frame slides along the guide rod under the drive of the vertical roller push-pull mechanism to achieve horizontal position adjustment of the vertical roller.

[0008] Furthermore, the flat roller assembly also includes a flat roller push-pull mechanism, and the flat roller is slidably arranged on the transmission shaft; each flat roller is connected to a flat roller push-pull mechanism, one end of the flat roller push-pull mechanism is fixedly arranged on the bearing seat assembly, and the other end is connected to the flat roller, driving the flat roller to slide axially along the transmission shaft to achieve horizontal position adjustment of the flat roller.

[0009] Furthermore, the flat roller push-pull mechanism includes a hydraulic cylinder and a connecting sleeve. The hydraulic cylinder includes a cylinder body and a movable piston. The cylinder body and the bearing seat are assembled into an integral structure. The movable piston is mounted on the drive shaft and rotates circumferentially with the cylinder body. The connecting sleeve is slidably mounted on the drive shaft. One end of the connecting sleeve is connected to the flat roller and the other end is connected to the movable piston. The hydraulic cylinder drives the flat roller through the connecting sleeve. When the hydraulic cylinders driving the flat roller are located on the same side of the drive shaft, multiple connecting sleeves are installed on the drive shaft in multiple layers.

[0010] Furthermore, the flat roller assembly also includes a flat roller lifting mechanism, the bearing seat assembly is slidably connected to the frame, and the flat roller lifting mechanism is arranged between the frame and the bearing seat assembly, driving the bearing seat assembly to drive the transmission shaft to move up and down, thereby realizing the vertical position adjustment of the flat roller.

[0011] Furthermore, one or more forming channels are provided in the frame, and each forming channel is formed by a combination of two flat roller assemblies arranged vertically and two vertical roller assemblies arranged left and right.

[0012] Furthermore, the vertical roller push-pull mechanism and the flat roller push-pull mechanism for driving and adjusting the same forming channel are both located on the same side of the forming channel or are symmetrically distributed on both sides of the forming channel.

[0013] A profile forming production line comprises the universal roll forming device mentioned above and is used for producing profiles by hot forming or cold forming.

[0014] Optionally, the horizontal forming roller is assembled as an inclined passive roller, and a heating device is arranged in front of the inlet of the universal roll forming device. The heating device and the universal roll forming device together constitute an extrusion welding machine.

[0015] Optionally, during hot forming production, the universal roll forming device is arranged after the hot rolling strip mill and / or the strip slitting unit to produce open or closed profiles using the high-temperature waste heat of hot rolling.

[0016] The vertical roller lifting mechanism, vertical roller push-pull mechanism, flat roller push-pull mechanism, and flat roller lifting mechanism in the present invention can be implemented by telescopic mechanisms such as hydraulic cylinders and electric cylinders, and are all equipped with displacement sensors for precise position control.

[0017] The beneficial effects of the present invention are:

[0018] 1. The universal roll forming device of the present invention has vertical roller assemblies and flat roller assemblies that constitute the forming channel, which can realize online adjustment of the up and down, left and right positions. Each forming roller can be adjusted individually or in a linked manner, making the present invention suitable for both open and closed profiles.

[0019] 2. The vertical roller assembly of the present invention realizes online adjustment of the vertical roller in the vertical and horizontal directions within a limited installation space through the vertical roller lifting mechanism and the vertical roller pushing and pulling mechanism, which solves the problem that it is difficult to arrange the adjustment mechanism of the double-channel forming roller because the vertical roller and the flat roller are arranged in the same plane.

[0020] 3. The flat roller assembly in the present invention utilizes a hydraulic cylinder to drive the corresponding adjustment roller to move along the drive shaft, thereby realizing online adjustment of the size of the forming channel along the axial direction of the drive shaft. Due to the combination of the cylinder and the connecting sleeve, the resistance is smaller during operation and the operation is stable. At the same time, for the double forming channels, the hydraulic cylinder can be arranged on one side of the forming channel, and the connecting sleeve can be installed on the drive shaft in multiple layers. The installation structure is compact and can meet the space limitations of the multi-channel rack.

[0021] 4. The vertical roller assembly and the flat roller assembly in the present invention are an integrated assembly structure, which can be disassembled from the frame as a whole. When changing rollers, they can be pushed and pulled in and out of the frame at one time, and the roller changing efficiency is high.

[0022] 5. The universal roll-forming device of the present invention can be used in both hot and cold forming production lines. By replacing and assembling horizontal forming rollers, vertical forming rollers, and inclined passive forming rollers of different shapes, different types of dual-channel or single-channel forming machines (or extrusion welding machines) can be formed. The position and hole size of each forming roller can be adjusted online to produce a variety of open or closed profiles.

[0023] Other advantages, objects, and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art upon examination of the following description or may be learned from practice of the present invention. The objects and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below with reference to the accompanying drawings, in which:

[0025] Figure 1 It is a structural schematic diagram of the universal roller forming device with double forming channels in the present invention.

[0026] Figure 2 for Figure 1 P-direction side view.

[0027] Figure 3 for Figure 1 QQ view.

[0028] Figure 4 This is the installation diagram of the vertical roller lifting mechanism.

[0029] Figure 5 Installation view of the flat roller push-pull mechanism.

[0030] Figure 6 It is a structural schematic diagram of the universal roll forming device with a single forming channel in the present invention.

[0031] Figure 7 Schematic diagram of the closed profile forming roller arrangement.

[0032] Figure 8 Schematic diagram of installing inclined passive rollers for extrusion welding of closed profiles.

[0033] Figure 9 Schematic diagram of the arrangement of forming rollers for open profiles.

[0034] Figure 10 Schematic diagram of the arrangement of the forming rollers for open profiles (without vertical rollers).

[0035] Figure 11 Schematic diagram of the hole pattern adjustment for the offset movement of the flat roller and the vertical roller.

[0036] Figure 12 This is a schematic diagram of the equipment layout of the waste heat forming steel production line of the present invention.

[0037] Figure 13 This is a schematic diagram of the production line for hot rolling steel billets and rolling steel sections according to the present invention.

[0038] Figure 14 for Figure 13 Schematic diagram of the pass profile for medium-rolled steel sections.

[0039] Figure markings: 100-frame; 210-hydraulic cylinder; 211-connecting sleeve; 212-flat roller; 213-vertical roller push-pull mechanism; 214-vertical roller frame; 215-inclined passive roller; 216-drive shaft; 220-bearing seat assembly; 221-frame bearing seat; 222-guide rod; 223-support box; 224-support seat; 225-drive shaft bearing; 300-vertical roller assembly; 310-vertical roller lifting mechanism; 311-cylinder rod; 312-cylinder body; 400-flat roller lifting mechanism; 500-drive shaft positioning device; 600-power unit; 700-drive shaft quick replacement device. DETAILED DESCRIPTION

[0040] The following describes the embodiments of the present invention by means of specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways 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 illustrations of the basic concept of the present invention, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0041] Among them, the accompanying drawings are only for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the dimensions of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the accompanying drawings.

[0042] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc. indicating directions or positional relationships, they are based on the directions or positional relationships 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 direction, be constructed and operate in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0043] See also Figures 1 to 11 , is a universal roll forming device, including a frame 100, the frame 100 includes an operating side frame and a transmission side frame, and one or two forming channels are arranged in the frame 100. Each forming channel is formed by combining two flat roller assemblies arranged in an upper and lower manner and two vertical roller assemblies 300 arranged in a left and right manner.

[0044] Among them, the flat roller assembly includes a transmission shaft 216 and a flat roller 212 installed on the transmission shaft 216. Both ends of the transmission shaft 216 are rotatably mounted on the bearing seat assembly 220, and the bearing seat assembly 220 is connected to the frame 100; the flat roller assembly also includes a flat roller push-pull mechanism, and the flat roller 212 is slidably mounted on the transmission shaft 216; each flat roller 212 is connected to a flat roller push-pull mechanism, one end of the flat roller push-pull mechanism is fixedly mounted on the bearing seat assembly 220, and the other end is connected to the flat roller 212, driving the flat roller 212 to slide axially along the transmission shaft 216 to achieve horizontal position adjustment of the flat roller 212.

[0045] The flat roller push-pull mechanism includes a hydraulic cylinder 210 and a connecting sleeve 211. The hydraulic cylinder 210 includes a cylinder body and a movable piston. The cylinder body and the bearing seat assembly 220 are an integrated structure. The movable piston is sleeved on the transmission shaft 216 and cooperates with the cylinder body in circumferential rotation. The connecting sleeve 211 is slidably sleeved on the transmission shaft 216. One end of the connecting sleeve 211 is connected to the flat roller 212, and the other end is connected to the movable piston. The hydraulic cylinder 210 drives the flat roller 212 to move through the connecting sleeve 211.

[0046] The flat roller assembly also includes a flat roller lifting mechanism 400, the bearing seat assembly 220 is slidably connected to the frame 100, and the flat roller lifting mechanism 400 is installed between the frame 100 and the bearing seat assembly 220, driving the bearing seat assembly 220 to drive the transmission shaft 216 to move up and down, thereby realizing the vertical position adjustment of the flat roller 212.

[0047] Among them, the vertical roller assembly 300 includes a vertical roller, a vertical roller frame 214, a vertical roller lifting mechanism 310, a vertical roller push-pull mechanism 213, and a guide rod 222. The vertical roller frame 214 is connected to the bearing seat assembly 220, and the vertical roller and the vertical roller frame 214 slide together vertically; the vertical roller lifting mechanism 310 is fixedly installed on the vertical roller frame 214 and connected to the vertical roller, driving the vertical roller to move up and down along the vertical roller frame 214 to achieve vertical position adjustment of the vertical roller; the guide rod 222 is fixedly installed on the bearing seat assembly 220 and arranged parallel to the drive shaft 216; the vertical roller frame 214 is slidably installed on the guide rod 222, one end of the vertical roller push-pull mechanism 213 is connected to the vertical roller frame 214, and the other end is connected to the bearing seat assembly 220; the vertical roller frame 214 slides along the guide rod 222 driven by the vertical roller push-pull mechanism 213 to achieve horizontal position adjustment of the vertical roller.

[0048] In this embodiment, the vertical roller lifting mechanism 310 is a hydraulic cylinder. There is a vertical roller frame 214 at each end of the vertical roller. The hydraulic cylinder is installed on the vertical roller frame 214 below. The roller shaft of the vertical roller is slidably installed in the mounting hole of the vertical roller frame 214. The cylinder body 312 of the hydraulic cylinder is connected to one end of the roller shaft, and the cylinder rod 311 is installed at the bottom of the mounting hole. The vertical roller is driven up and down by the extension and contraction of the hydraulic cylinder.

[0049] The bearing seat assembly 220 includes a frame bearing seat 221, a support housing 223, a support seat 224, and a drive shaft bearing 225. The frame bearing seat 221 is slidably connected to the frame 100. The flat roller lifting mechanism 400 drives the frame bearing seat 221, which in turn moves the drive shaft 216 up and down. The cylinder of the flat roller push-pull mechanism is integrally formed with the support housing 223. The movable piston slides within the support housing 223, forming two oil chambers between the piston and the support housing 223. Hydraulic oil drives the movable piston, which in turn moves the connecting sleeve 211.

[0050] Transmission shaft bearings 225 are installed at both ends of the transmission shaft bearing 225 , the transmission shaft bearing 225 is installed on the support seat 224 , the support seat 224 is installed on the support box 223 , and the support box 223 is installed on the frame bearing seat 221 .

[0051] like Figure 5 、 6 As shown, the vertical roller push-pull mechanism 213 and the flat roller push-pull mechanism used to drive and adjust the same forming channel can be arranged in two ways: one is located on the same side of the forming channel, and the other is symmetrically distributed on both sides of the forming channel. When the hydraulic cylinder 210 driving the flat roller 212 is located on the same side of the drive shaft 216, the multiple connecting sleeves 211 are installed on the drive shaft 216 in a multi-layered manner.

[0052] One end of the transmission shaft 216 is connected to a power device 600 , which includes a motor, a reducer, a coupling, a connecting piece, etc., and is used to drive the upper and lower transmission shafts 216 to rotate, and can also drive the upper and lower transmission shafts 216 separately.

[0053] A transmission shaft quick-change device 700 is installed on the bearing seat assembly 220 and is located outside the operating side frame. When replacing the forming roller, the upper and lower transmission shafts 216 are quickly pushed and pulled in and out through the transmission shaft quick-change device 700, thereby realizing overall disassembly from the frame 100, and realizing simultaneous replacement of the vertical roller and the flat roller 212 in one disassembly, thereby improving the efficiency of roller replacement.

[0054] The frame 100 is also mounted with a drive shaft positioning device 500, which includes a push-pull mechanism and a baffle. The push-pull mechanism is fixedly mounted on the frame 100, and the baffle is connected to the push-pull mechanism and slidably mounted on the frame 100, perpendicular to the drive shaft 216. The drive shaft positioning device 500 is used to axially position the drive shaft 216 during installation. The baffle extends into the positioning slot on the drive shaft 216 to ensure that the drive shaft 216 is installed in place, thereby locking the position.

[0055] The vertical roller lifting mechanism 310, vertical roller push-pull mechanism 213, flat roller push-pull mechanism, and flat roller lifting mechanism 400 in the present invention can be implemented by telescopic mechanisms such as hydraulic cylinders and electric push rods, and are all equipped with displacement sensors to accurately control the position.

[0056] The universal roll forming device in this embodiment can realize the production of profiles of various shapes by adjusting the movement of the vertical roller and the flat roller 212, among which: Figure 7 、 8 , 9, 11, and 14 are only partial displays of the profile structure.

[0057] A profile forming production line includes the universal roll forming device of this embodiment, and is used for producing profiles by hot forming or cold forming.

[0058] As an application of the universal roll forming device in this embodiment, please refer to Figure 12 , 1 to 20 universal roll forming devices are composed of a forming unit and arranged behind the plate and strip slitting unit of the waste heat forming steel production line, and open or closed profiles are produced using the high temperature waste heat of hot rolling.

[0059] As another application, see Figures 13-14 The universal roll forming device in this embodiment is installed behind the hot rolling medium and thick plate mill or hot rolling strip (coil) mill of the hot rolling billet rolling steel production line, which can produce plates and strips with a thickness of 2 to 60 mm and a width of 400 to 5500 mm; dual-stream or single-stream production of heavy-duty steel sections is beneficial to improving production efficiency and product quality.

[0060] In some embodiments, the horizontal forming roller can also be assembled as an inclined passive roller 215, and a heating device can be configured before the entrance of the universal roll forming device. The heating device and the universal roll forming device together constitute an extrusion welding machine.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions, which should all be included in the scope of the claims of the present invention.

Claims

1. A universal roll forming device, comprising a frame, and a flat roller assembly and a vertical roller assembly arranged in the frame and combined to form a forming channel, the flat roller assembly comprising a drive shaft and flat rollers mounted on the drive shaft, the drive shaft being rotatably mounted on a bearing seat assembly at both ends, the bearing seat assembly being connected to the frame, characterized in that: The vertical roller assembly includes a vertical roller, a vertical roller frame, and a vertical roller lifting mechanism. The vertical roller frame is assembled and connected with the bearing seat. The vertical roller and the vertical roller frame are vertically slidably matched. The vertical roller lifting mechanism is fixed on the vertical roller frame and connected to the vertical roller, driving the vertical roller to move up and down along the vertical roller frame to achieve vertical position adjustment of the vertical roller; The vertical roller assembly also includes a vertical roller push-pull mechanism and a guide rod. The guide rod is fixed on the bearing seat assembly and arranged parallel to the transmission shaft. The vertical roller frame is slidably arranged on the guide rod. One end of the vertical roller push-pull mechanism is connected to the vertical roller frame, and the other end is connected to the bearing seat assembly. The vertical roller frame slides along the guide rod under the drive of the vertical roller push-pull mechanism to achieve horizontal position adjustment of the vertical roller.

2. The universal roll forming device according to claim 1, characterized in that: The flat roller assembly also includes a flat roller push-pull mechanism, and the flat roller is slidably arranged on the transmission shaft; each flat roller is connected to a flat roller push-pull mechanism, one end of the flat roller push-pull mechanism is fixedly arranged on the bearing seat assembly, and the other end is connected to the flat roller, driving the flat roller to slide axially along the transmission shaft to achieve horizontal position adjustment of the flat roller.

3. The universal roll forming device according to claim 2, characterized in that: The flat roller push-pull mechanism includes a hydraulic cylinder and a connecting sleeve. The hydraulic cylinder includes a cylinder body and a movable piston. The cylinder body and the bearing seat are assembled into an integral structure. The movable piston is sleeved on the transmission shaft and rotates in circumferential direction with the cylinder body. The connecting sleeve is slidably sleeved on the transmission shaft, one end of the connecting sleeve is connected to the flat roller, and the other end is connected to the moving piston, and the hydraulic cylinder drives the flat roller to move through the connecting sleeve.

4. The universal roll forming device according to claim 1, characterized in that: The flat roller assembly also includes a flat roller lifting mechanism. The bearing seat assembly is slidably connected to the frame. The flat roller lifting mechanism is arranged between the frame and the bearing seat assembly, driving the bearing seat assembly to drive the transmission shaft to move up and down to achieve vertical position adjustment of the flat roller.

5. The universal roll forming device according to claim 2, characterized in that: One or more forming channels are arranged in the frame, and each forming channel is formed by assembling two flat rollers arranged up and down and two vertical rollers arranged left and right.

6. The universal roll forming device according to claim 5, characterized in that: The vertical roller push-pull mechanism and the flat roller push-pull mechanism used for driving and adjusting the same forming channel are both located on the same side of the forming channel or are symmetrically distributed on both sides of the forming channel.

7. A profile forming production line, characterized by: The universal roll forming device comprises the universal roll forming device according to any one of claims 1 to 6, and is used for producing profiles by hot forming or cold forming.

8. The profile forming production line according to claim 7, characterized in that: A supplementary heating device is arranged before the entrance of the universal roll forming device, and the supplementary heating device and the universal roll forming device together constitute an extrusion welding machine.

9. The profile forming production line according to claim 7, characterized in that: During hot forming production, the universal roll forming device is arranged after the hot strip rolling mill and / or the strip slitting unit to produce open or closed profiles using the high temperature waste heat of hot rolling.

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