Photovoltaic support pipe production system and process

Abstract

The invention relates to the field of steel pipe machining, in particular to a photovoltaic support pipe production system and process, the system comprises an uncoiling device, a shearing butt welding device, a leveling device, a forming rolling device, a fixed-length cutting device and a pipe collecting device, the fixed-length cutting device comprises a cutting table arranged in a sliding mode, and a cutting frame is arranged on the cutting table; a cutting knife is arranged in the cutting frame and connected with a cutting shaft, the other end of the cutting shaft is connected with a driving assembly, a cutting air cylinder is hinged to the cutting table, a piston rod of the cutting air cylinder is connected with the cutting shaft, and pipe positioning mechanisms are arranged at the positions, located in the cutting holes, of the two sides of the cutting frame. According to the process, accurate cutting of the pipe is achieved through the special equipment, and burrs are avoided.

Description

Technical Field

[0001] The present invention relates to the field of steel pipe processing, and particularly to a production system and process for photovoltaic support pipes. Background Art

[0002] Under the background of the rapid development of the new energy industry, as an important support structure of the photovoltaic power generation system, the production process efficiency and product quality of photovoltaic support directly affect the stability and service life of photovoltaic power stations. At present, the mainstream production process flow of photovoltaic support pipes is as follows: The raw material (steel strip coil) is uncoiled by a hydraulic uncoiler, sheared and butt-welded by a hydraulic shearing machine to realize the continuous processing of the steel strip; then the steel strip is passively leveled by a leveling device and sent into the forming rolling process to be processed into square pipes, round pipes or special-shaped pipes; finally, the fixed-length cutting of the pipe is completed by a cutting device, and the pipe is collected and bundled by a blanking device.

[0003] In the above fixed-length cutting process, usually, the cutting table moves synchronously with the conveyed pipe and cuts the pipe during the movement. However, this process has obvious defects in practical applications: Strip-shaped burrs that are not cut often appear on the end face of the cut pipe. These strip-shaped burrs not only damage the flatness and smoothness of the pipe end face, affect the overall quality of the photovoltaic support pipe, and reduce its assembly accuracy with other components; at the same time, the sharp burrs are extremely easy to scratch the operators during subsequent handling and installation, posing a great potential safety hazard. Summary of the Invention

[0004] The present invention aims to provide a production system and process for photovoltaic support pipes to solve the problem that the end face of the processed pipe in the prior art has strip-shaped burrs.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A production system for photovoltaic support pipes includes an uncoiling device, a shearing and butt-welding device, a leveling device, a forming rolling device, a fixed-length cutting device, and a pipe collecting device. The fixed-length cutting device includes a sliding cutting table, a cutting frame is arranged on the cutting table, a cutting knife is arranged inside the cutting frame, the cutting knife is connected to a cutting shaft, the other end of the cutting shaft is connected to a driving component, a cutting cylinder is also hinged on the cutting table, the piston rod of the cutting cylinder is connected to the cutting shaft, a transmission hole for the pipe fitting to pass through is opened at the bottom of the cutting frame, the cutting knife is arranged above the transmission hole, pipe positioning mechanisms are arranged at the positions of the cutting holes on both sides of the cutting frame, the pipe positioning mechanism includes a bottom plate and a positioning cylinder, the bottom plate is located below the pipe fitting, vertical limiting plates are arranged on both sides of the bottom plate in the width direction of the pipe, a channel for the pipe fitting to pass through is formed between the two limiting plates, a positioning groove is opened in the middle of the two limiting plates, and the piston rod of the positioning cylinder can pass through the positioning grooves on the two limiting plates to tightly press the pipe fitting in the width direction.

[0007] Preferably, as an improvement, a grinding cylinder is arranged between the two positioning cylinders. A grinding block is connected to the piston rod of the grinding cylinder. The grinding cylinder is used to drive the grinding block to move along the width direction of the pipe to grind the cutting end face of the pipe.

[0008] Preferably, as an improvement, an installation frame is fixed on the piston rod of the grinding cylinder. An installation shaft is vertically arranged on the installation frame. The grinding block is fixed on the installation shaft. Chute grooves are arranged at the top and bottom of the installation frame. The two ends of the installation shaft are slidably connected in the chute grooves. Springs are connected between the two ends of the installation shaft and the ends of the chute grooves.

[0009] Preferably, as an improvement, the grinding block includes a rough grinding block and a fine grinding block, and the fine grinding block is arranged away from the pipe.

[0010] Preferably, as an improvement, the driving assembly includes a motor installed on the cutting table. The output shaft of the motor is coaxially connected with a driving wheel. The driving wheel is synchronously connected with a driven wheel through a belt, and the driven wheel is connected with the cutting shaft.

[0011] A production process of a photovoltaic support pipe adopts the above-mentioned production system of a photovoltaic support pipe, and includes the following steps: Step 1: Uncoiling by an uncoiling device; Step 2: Shearing and butt-welding the head and tail of the strip steel by a shearing and butt-welding device; Step 3: Levelling the strip steel by a levelling device; Step 4: Forming and rolling the strip steel into a pipe by a forming and rolling device; Step 5: Cutting the pipe to a fixed length by a fixed-length cutting device; Step 6: Receiving and bundling the pipe. In Step 5, the cutting table moves synchronously with the pipe, cuts the pipe during the movement, and the positioning cylinders on both sides of the cutting frame abut against the pipe during cutting; after cutting, the grinding cylinder drives the grinding block to grind the cutting end face of the pipe, and the grinding block adaptively fits the cutting end face of the pipe through the spring.

[0012] Preferably, as an improvement, in Step 5, the grinding cylinder first drives the rough grinding block to contact the cutting end face of the pipe, and then drives the fine grinding block to contact the cutting end face of the pipe.

[0013] The principle and beneficial effects of the above solution are:

[0014] 1. The production system of photovoltaic support pipes realizes the automatic production of pipes through the collaborative operation of various devices: after the strip coil is unwound by the uncoiling device, the head and tail are sheared and welded by the shearing and butt-welding device to achieve continuous processing; the leveling device levels the strip steel and then sends it into the forming and rolling device to be processed into square pipes, round pipes or special-shaped pipes; after forming, it is cut to a fixed length. In the fixed-length cutting device, the cutting table moves synchronously with the pipe, and the cutting cylinder drives the cutting shaft to drive the cutting knife to fall, and the pipe is dynamically cut at the transmission hole. At the same time, the piston rods of the positioning cylinders on both sides of the cutting frame pass through the positioning grooves and tightly press against both sides of the pipe cutting part from the width direction, ensuring that the pipe is relatively stationary with the cutting table, effectively avoiding the generation of strip burrs due to the speed difference between the pipe and the cutting table, ensuring the cutting accuracy and end face quality, and improving the production efficiency and safety of photovoltaic support pipes.

[0015] 2. On this basis, a grinding cylinder is added between the two positioning cylinders. After the pipe is cut, the positioning cylinders continuously press against the pipe, and the grinding cylinder drives the grinding block to feed towards the cutting end face of the pipe, and the burrs are removed through the contact friction between the grinding block and the cutting end face. Further improve the flatness and smoothness of the pipe end face, reduce the cost of secondary manual processing, and at the same time avoid the safety hazards brought by burrs, significantly improving the production automation level and product quality.

[0016] 3. Further, an installation frame is fixedly installed on the piston rod of the grinding cylinder to install the grinding block, and the two ends of the installation shaft of the grinding block are slidably connected to the top and bottom chutes, and springs are connected between the two ends of the installation shaft and the ends of the chutes to construct a floating grinding structure. When the grinding cylinder drives the installation frame to drive the grinding block to feed towards the cutting end face of the pipe, if the end face is uneven, the installation shaft can slide in the chute, and the position of the grinding block is adaptively adjusted by the elastic deformation of the spring: when encountering a convex end face, the spring compresses and the grinding block retreats; when encountering a concave end face, the spring elongates and pushes the grinding block to follow up to ensure close contact. This solution utilizes the buffering and adjustment characteristics of the spring to effectively compensate for the shape error of the pipe cutting end face, achieve uniform grinding, significantly improve the grinding quality and efficiency, and at the same time reduce the risk of equipment wear and pipe damage caused by rigid contact, enhancing the stability and reliability of the production system. In addition, it can continuously make the grinding block contact with the pipe cutting end face, avoiding the inability to remove the pipe cutting end face due to the wear of the grinding block, ensuring an effective grinding block.

[0017] 4. On this basis, the grinding blocks are divided into rough grinding blocks and fine grinding blocks, and the fine grinding blocks are arranged away from the pipe. When the grinding cylinder drives the grinding blocks to approach the cutting end face of the pipe, the rough grinding blocks come into contact with the end face first. With a large contact pressure and coarse-grained abrasives, they quickly remove large protrusions and efficiently complete the preliminary grinding. As the grinding cylinder continues to feed, the fine grinding blocks follow up and contact the surface that has been roughly ground. Using a small pressure and fine-grained abrasives, they finely polish the end face of the pipe. Through the sequential relay of rough grinding and fine grinding, this solution realizes hierarchical grinding of the cutting end face of the pipe, ensuring both the grinding efficiency and significantly improving the surface finish and flatness of the end face, enabling the product quality to reach a higher standard.

[0018] In summary, the production process of the photovoltaic support pipe in this solution combines a dedicated production system. Through the coordinated cooperation of each step, it realizes efficient, stable, and high-precision pipe production. Steps such as uncoiling, shearing and butt welding, leveling, and forming rolling are completed in an orderly manner to convert the strip steel into a pipe, laying a foundation for subsequent processes. In the fixed-length cutting link, the cutting table moves synchronously with the pipe and cooperates with the positioning cylinder to tightly press against the pipe, effectively avoiding the shaking of the pipe during cutting and ensuring the cutting accuracy. After cutting, the grinding cylinder drives the grinding blocks that adaptively fit the end face through springs to perform grinding, which can automatically compensate for the unevenness of the end face and ensure comprehensive and uniform grinding. Especially the grinding method of preferentially driving the rough grinding blocks to contact the end face to remove burrs, protrusions and other large defects, and then driving the fine grinding blocks to perform fine polishing realizes hierarchical grinding, which not only improves the grinding efficiency but also significantly improves the flatness and surface finish of the cutting end face of the pipe. The entire solution significantly improves the production quality and production efficiency of the photovoltaic support pipe, reduces the defective rate, while reducing manual intervention, improving the degree of production automation, reducing production costs, and enhancing the market competitiveness of the product. Brief Description of the Drawings

[0019] Figure 1 It is a structural block diagram of Embodiment 1 of the present invention.

[0020] Figure 2 It is a side view of the fixed-length cutting device in Embodiment 1 of the present invention.

[0021] Figure 3 It is a partial top view of the pipe positioning mechanism in the fixed-length cutting device in Embodiment 1 of the present invention.

[0022] Figure 4 It is a partial side sectional view of the mounting bracket in Embodiment 1 of the present invention.

[0023] Figure 5 It is a structural schematic diagram of the grinding block in Embodiment 2 of the present invention.

[0024] The reference numerals in the accompanying drawings of the specification include: cutting table 1, cutting frame 2, cutting knife 3, transmission hole 4, cutting cylinder 5, motor 6, belt 7, cutting shaft 8, positioning cylinder 9, pipe 10, bottom plate 11, limiting plate 12, positioning groove 13, mounting frame 14, grinding block 15, grinding cylinder 16, sliding groove 17, spring 18, mounting shaft 19, rough grinding block 21, fine grinding block 22, cutting end face A. Detailed implementation manners

[0025] The following is a further detailed description through specific implementation manners:

[0026] Embodiment 1:

[0027] As Figure 1 shown, a production system for photovoltaic support pipes includes an uncoiler, a shearing and butt welding device, a leveling device, a forming and rolling device, a length cutting device, and a pipe receiving device arranged in sequence. The uncoiler adopts a hydraulic uncoiler of the prior art. When in use, the coil is sleeved on the coil head of the uncoiler, the coil head is tensioned, and the strip steel is dragged into the equipment passively for production. The shearing and butt welding device adopts a hydraulic shearing machine in the prior art. This equipment is located behind the hydraulic uncoiler and is used for shearing the head and tail of the strip steel and then performing butt welding to meet the continuous production of the equipment. The leveling device adopts a roll-type leveling device in the prior art and is used for leveling the strip steel. The forming and rolling device adopts a steel pipe forming and rolling device in the prior art and is used for forming square pipes, round pipes, or special-shaped pipes. The pipe receiving device is arranged behind the length cutting device and is used for conveying the cut pipes 10 backward and aggregating them to achieve pipe receiving.

[0028] Combined with Figure 2 shown, the length cutting device includes a cutting table 1 slidably arranged. The cutting table 1 is slidably arranged on the conveying channel of the pipe 10, and the cutting table 1 is driven to move synchronously with the pipe 10 through the prior art. A cutting frame 2 is welded and fixed on the cutting table 1. A cutting knife 3 is arranged inside the cutting frame 2. A transmission hole 4 for the pipe fitting to pass through is opened at the bottom of the cutting frame 2, and the cutting knife 3 is arranged above the transmission hole 4. The cutting knife 3 is connected to a cutting shaft 8. A cutting cylinder 5 is hinged on the cutting table 1, and the free end of the piston rod of the cutting cylinder 5 is connected to the cutting shaft 8. By lifting or lowering the cutting shaft 8 by the cutting cylinder 5, the cutting knife 3 can be driven to approach or move away from the pipe 10. The other end of the cutting shaft 8 is connected to a driving assembly. The driving assembly includes a motor 6 installed on the cutting table 1. The output shaft of the motor 6 is coaxially connected with a driving wheel. The driving wheel is synchronously connected with a driven wheel through a belt 7, and the driven wheel is coaxially connected with the cutting shaft 8.

[0029] Combined with Figure 3As shown in the figure, pipe positioning mechanisms are provided on both sides of the cutting frame 2 at the positions of the cutting holes. The pipe positioning mechanisms include a bottom plate 11 and a positioning cylinder 9. The bottom plate 11 is located below the pipe fitting. Vertical limiting plates 12 are bolted and fixed on both sides of the bottom plate 11 in the width direction of the pipe 10. A channel for the pipe fitting to pass through is formed between the two limiting plates 12. Positioning grooves 13 are opened in the middle of the two limiting plates 12. The piston rod of the positioning cylinder 9 can pass through the positioning grooves 13 on the two limiting plates 12 to press the pipe fitting tightly from the width direction.

[0030] A grinding cylinder 16 is also provided between the two positioning cylinders 9. The grinding cylinder 16 is arranged on the left side of the cutting knife 3. A grinding block 15 is connected to the piston rod of the grinding cylinder 16. The grinding cylinder 16 is used to drive the grinding block 15 to move along the width direction of the pipe 10 to grind the cutting end face of the pipe 10. Specifically, as shown in Figure 4 the figure, an installation frame 14 is fixed on the piston rod of the grinding cylinder 16. An installation shaft 19 is vertically installed on the installation frame 14. The grinding block 15 is bolted and fixed on the installation shaft 19 for easy disassembly and replacement. Slide grooves 17 are opened at the top and bottom of the installation frame 14 along the conveying direction of the pipe 10. The slide grooves 17 are dovetail grooves. Both ends of the installation shaft 19 are slidably connected in the slide grooves 17, and compression springs 18 are connected between both ends of the installation shaft 19 and the ends of the slide grooves 17.

[0031] A production process for photovoltaic support pipes adopts the above-mentioned production system for photovoltaic support pipes.

[0032] It includes the following steps:

[0033] Step 1: The uncoiling device uncoils.

[0034] Step 2: The shearing and butt welding device shears and butt welds the head and tail of the strip steel.

[0035] Step 3: The leveling device levels the strip steel.

[0036] Step 4: The forming and rolling device forms and rolls the strip steel into the pipe 10.

[0037] Step 5: The length-cutting device cuts the pipe 10 to a fixed length.

[0038] Step 6: Collect and bundle the pipes.

[0039] Specifically, first, the coil is sleeved on the coil head of the uncoiler. After the coil head tensions the strip steel, the strip steel is passively dragged into the production line and enters the shearing and butt welding device. The shearing and butt welding device shears the head and tail of the strip steel, and then completes the butt welding to ensure that the strip steel can be continuously supplied to the subsequent equipment. Then, the strip steel enters the leveling device, where it is extruded and corrected by multiple groups of rollers to eliminate defects such as waviness and bending, and becomes a flat plate. The leveled strip steel then enters the forming rolling device, where it is rolled and formed through multiple passes of rollers to be processed into pipes 10 required for photovoltaic brackets, such as square pipes, round pipes, or special-shaped pipes.

[0040] The formed pipe 10 continues to be conveyed to the fixed-length cutting device. The cutting table 1 moves synchronously with the pipe 10 under the action of the driving mechanism. The pipe 10 passes through the transmission hole 4 at the bottom of the cutting frame 2. When the pipe 10 is conveyed to the set length, the pipe positioning mechanism on both sides of the cutting frame 2 is activated. The piston rod of the positioning cylinder 9 passes through the positioning groove 13 of the limiting plate 12 and presses and fixes the pipe 10 from the width direction. At this time, the cutting cylinder 5 pulls down the cutting shaft 8 to drive the cutting knife 3 to descend. At the same time, the motor 6 drives the cutting shaft 8 to rotate at high speed through the driving assembly composed of the driving wheel, belt 7, and driven wheel, driving the cutting knife 3 to complete the dynamic cutting of the pipe 10.

[0041] After cutting is completed, the grinding cylinder 16 operates, driving the grinding block 15 connected to the piston rod mounting frame 14 to move along the width direction of the pipe 10. Since a compression spring 18 is provided between the mounting shaft 19 of the grinding block 15 and the chute 17 of the mounting frame 14, when the grinding block 15 contacts the cutting end face A of the pipe 10, the spring 18 is compressed to generate an elastic deformation (the deformation amount is tiny), enabling the grinding block 15 to adaptively fit (fine-tune) the contour of the cutting end face A of the pipe 10 for grinding. After grinding is completed, the grinding cylinder 16 retracts, the cutting table 1 resets, the positioning cylinder 9 releases, and the cut pipe 10 continues to be conveyed backward to the pipe collecting device. The pipe collecting device collects and aggregates the pipes 10 to complete the entire production process of the photovoltaic bracket pipes.

[0042] Embodiment 2:

[0043] Combined with Figure 5 As shown, the difference between this embodiment and Embodiment 1 is that the grinding block 15 includes a rough grinding block 21 and a fine grinding block 22, and the fine grinding block 22 is arranged away from the pipe 10. In this embodiment, when cutting, the grinding cylinder 16 first pushes the rough grinding block 21 to contact the cutting end face A of the pipe 10 to quickly remove burrs, oxide scales, etc.; then continue to feed, and the fine grinding block 22 follows up to finely polish the surface after rough grinding.

[0044] The above are only embodiments of the present invention, and common general technical solutions and / or characteristics in the solution are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, and these should also be regarded as the protection scope of the present invention, which will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope claimed in this application shall be subject to the content of its claims, and the specific implementation manners and the like described in the specification can be used to interpret the content of the claims.

Claims

1. A production system for photovoltaic support pipes, comprising an uncoiling device, a shearing and butt-welding device, a leveling device, a forming and rolling device, a fixed-length cutting device, and a pipe collecting device, characterized in that: The fixed-length cutting device includes a cutting table arranged to slide, a cutting frame is arranged on the cutting table, a cutting knife is arranged inside the cutting frame, the cutting knife is connected to a cutting shaft, the other end of the cutting shaft is connected to a driving component, a cutting cylinder is also hinged on the cutting table, and the piston rod of the cutting cylinder is connected to the cutting shaft. A transmission hole for the pipe fitting to pass through is opened at the bottom of the cutting frame, the cutting knife is arranged above the transmission hole, and pipe material positioning mechanisms are arranged at the positions of the cutting holes on both sides of the cutting frame. The pipe material positioning mechanism includes a bottom plate and a positioning cylinder. The bottom plate is located below the pipe fitting. Vertical limiting plates are arranged on both sides of the bottom plate in the width direction of the pipe material. A channel for the pipe fitting to pass through is formed between the two limiting plates. A positioning groove is opened in the middle of the two limiting plates, and the piston rod of the positioning cylinder can pass through the positioning grooves on the two limiting plates to press the pipe fitting tightly from the width direction.

2. The production system of a photovoltaic support pipe according to claim 1, characterized in that: A grinding cylinder is arranged between the two positioning cylinders. A grinding block is connected to the piston rod of the grinding cylinder. The grinding cylinder is used to drive the grinding block to move along the width direction of the pipe material to grind the cutting end face of the pipe material.

3. The production system of a photovoltaic support pipe according to claim 2, characterized in that: An installation frame is fixed on the piston rod of the grinding cylinder. An installation shaft is vertically arranged on the installation frame. The grinding block is fixed on the installation shaft. Chute grooves are arranged at the top and bottom of the installation frame. Both ends of the installation shaft are slidably connected in the chute grooves, and springs are connected between both ends of the installation shaft and the ends of the chute grooves.

4. The production system of a photovoltaic support pipe according to claim 3, characterized in that: The grinding block includes a rough grinding block and a fine grinding block, and the fine grinding block is arranged away from the pipe material.

5. A production system for a photovoltaic support tube according to claim 4, characterized in that: The driving component includes a motor installed on the cutting table. The output shaft of the motor is coaxially connected with a driving wheel. The driving wheel is synchronously connected with a driven wheel through a belt, and the driven wheel is connected to the cutting shaft.

6. A production process for a photovoltaic support pipe, using a photovoltaic support pipe production system as described in claim 5, includes the following steps: Step 1: The uncoiling device uncoils. Step 2: The shearing and butt-welding device shears and butt-welds the head and tail of the strip steel. Step 3: The leveling device levels the strip steel. Step 4: The forming and rolling device forms and rolls the strip steel into a pipe. Step 5: The fixed-length cutting device performs fixed-length cutting on the pipe. Step 6: Receiving and bundling the pipes. It is characterized in that: In step 5, the cutting table moves synchronously with the pipe, cuts the pipe during the movement, and the positioning cylinders on both sides of the cutting frame press the pipe tightly during cutting; after cutting, the grinding cylinder drives the grinding block to grind the cutting end face of the pipe, and the grinding block adaptively fits the cutting end face of the pipe through the spring.

7. A production process of a photovoltaic support pipe according to claim 6, characterized in that: In step 5, the grinding cylinder first drives the rough grinding block to contact the cutting end face of the pipe, and then drives the fine grinding block to contact the cutting end face of the pipe.

Images