Intelligent cutting machine tool for steel pipe production

Abstract

This invention relates to the field of steel pipe processing technology and discloses an intelligent cutting machine tool for steel pipe production. The machine tool includes a base, a saw belt drive device on the top of the base, and a lifting platform connected to the top of the base to drive the saw belt drive device to rise and fall. Conveying mechanisms are respectively provided at both ends of the base. A servo motor drives a second helical gear on the outer wall of a rotating rod to rotate, which in turn drives a positioning roller and several conveying rollers to rotate synchronously. This facilitates the feeding of longer square steel pipes. Automatic feeding saves manpower and improves efficiency. Furthermore, movable limiting rings on both sides of the positioning rollers facilitate the limiting of square steel pipes of different widths, ensuring that the steel pipes do not deviate during transport and preventing the cutting quality from being affected by tilted cut surfaces due to improper placement.

Description

Technical Field

[0001] This invention relates to the field of steel pipe processing technology, and specifically to an intelligent cutting machine tool for steel pipe production. Background Technology

[0002] Steel pipe is a long strip of steel with a hollow cross-section. It can be divided into many types according to production process, cross-sectional shape, material and use. Common types include round pipe and square pipe. In building structures such as steel beams, columns and high-rise building frames, or mechanical frames such as industrial equipment supports and agricultural machinery frames, square pipes are usually used for construction. In practical applications, square pipes need to be cut and processed, mainly because their original length specifications often cannot directly meet the needs of specific projects or products.

[0003] Existing technology, such as Chinese patent "CN109663968B", provides a cutting device for steel pipe manufacturing, including a base, a support on the base, a shock-absorbing device at the bottom of the base for absorbing vibrations during steel pipe cutting, a main lifting mechanism on the support, a moving block connected to the main lifting mechanism, a pair of steel pipe clamping mechanisms connected to the moving block, a balancing device on the moving block for maintaining pressure balance between the pair of steel pipe clamping mechanisms, a cutting lifting mechanism connected to the moving block, and a steel pipe cutting device connected to the cutting lifting mechanism. By setting symmetrical connecting pipes and grease-filled cavities communicating with the connecting pipes, the clamping force acting on the steel pipe is made equal on both sides, preventing breakage at the cut point when cutting the steel pipe. The shock-absorbing device at the bottom reduces vibration during cutting, making the cutting process more stable.

[0004] The proposed solution uses a steel pipe clamping mechanism to clamp both ends of the steel pipe, ensuring stability during the cutting process and thus guaranteeing the cutting quality. However, in actual operation, the steel pipe needs to be placed in a designated position before it can be fixed. Since the equipment itself lacks a positioning mechanism, the steel pipe needs to be manually positioned each time it is cut. The efficiency of manual operation is inevitably affected by the worker's skill level, and inaccurate positioning can easily cause the steel pipe to be cut at an angle, affecting the cutting quality.

[0005] Existing technologies, such as Chinese patent "CN118492490A", provide a cutting device for steel pipe production and processing, including: a main housing, a conveyor belt groove on the top of the main housing, a servo motor inside the main housing, and a conveyor belt inside the conveyor belt groove; In this invention, the design of structures such as the first arc plate and the second arc plate allows for the quick fixing of steel pipes of different sizes, simplifying the operation process and reducing the time required for fixing the steel pipes. The design of the atomizing cooling nozzle and water pump cools and cleans the steel pipes and cutting blades during the cutting process, reducing damage and deformation caused by high temperatures and improving cutting quality. At the same time, the design of the perforated drainage plate and water storage tank enables the recycling of water resources and reduces operating costs. The structure of the limiting slide and the first slider makes the entire steel pipe fixing mechanism and most of its internal components detachable, facilitating maintenance and replacement of parts and reducing maintenance costs.

[0006] This solution uses a steel pipe fixing mechanism on the conveyor belt to fix multiple groups of steel pipes, enabling the cutting mechanism to operate continuously during batch processing and improving processing efficiency. However, in practice, due to the steel pipe fixing mechanism, each time a steel pipe is placed, the insert handle needs to be pulled outward to push the second arc plate so that the first and second soft pads are pressed tightly against the steel pipe. Then, the insert handle is released to allow the fixing insert to snap into the corresponding slot. This allows for quick and convenient adaptive fixing of steel pipes of different sizes. Although this design simplifies the operation process and reduces the time required for fixing the steel pipes, it still requires manual assistance. This results in a heavy manual burden when processing large batches of steel pipes, and the length of the steel pipes that can be processed is limited by the conveyor belt's transport range, making it impossible to process some longer steel pipes. Summary of the Invention

[0007] The purpose of this invention is to provide an intelligent cutting machine tool for steel pipe production in order to solve the above-mentioned problems and overcome the defects of the prior art, as detailed below.

[0008] To achieve the above objectives, the present invention provides the following technical solution: The present invention provides an intelligent cutting machine tool for steel pipe production, including a base, a saw belt drive device is provided on the top of the base, a lifting platform for driving the saw belt drive device to rise and fall is connected to the top of the base, and a conveying mechanism is provided at both ends of the base for conveying steel pipes. The conveying mechanism includes a first support base, which is fixedly connected to one end of the base. A support frame is provided on the first support base near the saw belt drive device. A positioning roller is rotatably connected to the inner wall of the support frame. A limit component is provided on the outside of the positioning roller. A pressing component is provided on the top of the support frame. The limiting assembly includes two sets of limiting rings, which are movably sleeved on both sides of the outer wall of the positioning roller. Several first balls are rolledly connected to the side of the limiting ring that contacts the square steel tube. The inner wall of the support frame is provided with annular cavities corresponding to the positions of the two sets of limiting rings. Annular pistons are slidably connected to the inner walls of the two annular cavities to push the limiting rings to move on the outer wall of the positioning roller.

[0009] Preferably, the pressing assembly includes a telescopic rod, which is vertically connected to the top of the support frame, and two sets of pressure rollers are rotatably connected to the bottom of the telescopic rod via a connecting frame.

[0010] Preferably, pipelines are provided on both sides of the support frame, a hydraulic pump is installed inside the first support base, and the hydraulic pump is connected to two pipelines through a tee connector. The ends of the two pipelines away from the hydraulic pump are connected to the telescopic rod through a tee connector. The middle sections of the two pipelines are connected to the corresponding annular cavities through branch pipes, and a pressure pipe is provided at the tee connector position of the telescopic rod.

[0011] Preferably, a first sealing plug is slidably connected to the inner wall of the pressure tube, and a spring is fixedly connected between the inner wall of the pressure tube and the bottom of the first sealing plug, with the top of the first sealing plug abutting against the inner wall of the pressure tube.

[0012] Preferably, the inner wall of the first sealing plug is provided with a return channel, and a second sealing plug is provided inside the return channel. A spring is fixedly connected between the top of the second sealing plug and the inner wall of the return channel, and the second sealing plug abuts against the bottom of the inner wall of the return channel.

[0013] Preferably, a linkage component is provided between the two sets of limiting rings. The linkage component includes two sets of connecting rings, which are rotatably connected to the outer walls of the two sets of limiting rings. A rack is fixedly connected to the bottom of each of the two sets of connecting rings. A linkage gear is rotatably connected to the top of the first support base at the position between the two racks, and the linkage gear meshes with the two racks. The racks are slidably connected to the first support base via a slide rail. The connecting rings are fixedly connected to the annular piston at the corresponding positions.

[0014] Preferably, a number of conveying rollers are rotatably connected to the top of the first support base. A first helical gear is fixedly connected to the same end of the positioning roller and the conveying roller. A servo motor is fixedly connected to the top of the first support base. A rotating rod is fixedly connected to the output end of the servo motor. A number of second helical gears are fixedly sleeved on the outer wall of the rotating rod, and each second helical gear meshes with a first helical gear at a corresponding position.

[0015] Preferably, one end of the conveying mechanism is provided with a feeding mechanism, which includes a second support base, the second support base being fixedly connected to one of the first support bases, a feeding platform being provided above the second support base, a first support column being fixedly connected to the top of the second support base, and the rotating shaft of the feeding platform being rotatably connected to the top of the first support column. A torsion spring for resetting is provided at the connection between the rotating shaft and the first support column on the feeding platform, and a plurality of second ball bearings are rollingly connected to the top of the feeding platform.

[0016] Preferably, a second support column is fixedly connected to the top of the second support base. A slide rod is slidably connected to the second support column above the unloading platform. A trigger plate is slidably connected to the outer wall of the slide rod via a sliding sleeve. The trigger plate is located above the unloading platform. A locking nut is provided on the trigger plate at the position of the sliding sleeve. Connecting rods are fixedly connected to both ends of the slide rod. A limit assembly is provided at the bottom of the connecting rod. The limit assembly includes a first end face ratchet. The first end face ratchet is fixedly connected to the bottom of the connecting rod and slidably sleeved on one end of the rotating shaft on the unloading platform. A second end face ratchet that mates with the first end face ratchet is fixedly sleeved on the outer wall of the rotating shaft on the unloading platform. A support ring is fixedly sleeved on the outer wall of the rotating shaft on the unloading platform. A spring is fixedly connected between the support ring and the first end face ratchet.

[0017] Preferably, a slide is fixedly connected to one side of the second support base, a guide roller is fixedly connected to the top of the slide, a limit strip is fixedly connected to the side of the slide near the unloading platform, and a baffle is fixedly connected to one side of the bottom of the slide.

[0018] The beneficial effects are: I. This invention uses a servo motor to drive the second helical gear on the outer wall of the rotating rod to rotate, and the meshing first helical gear to drive the positioning roller and several conveying rollers to rotate synchronously. This facilitates the feeding of longer square steel pipes. Automatic feeding saves manpower and improves efficiency. Furthermore, by setting movable limit rings on both sides of the positioning roller, it is possible to limit the square steel pipes of different widths, ensuring that the steel pipes do not deviate during the conveying process. This avoids the problem of the cut surface being tilted due to improper placement of the square steel pipes during cutting, which affects the cutting quality of the steel pipes.

[0019] Second, by setting a downward pressure component above the positioning roller, the present invention can apply downward pressure to the square steel pipe during transportation, making it more stable during transportation and preventing it from shaking or tilting. Moreover, with the downward pressure of the pressure roller, the steel pipe is not easy to shift during cutting, ensuring the quality of cutting. Furthermore, when part of the square steel pipe is cut, its position remains stable due to the action of the pressure roller, preventing the square steel pipe from losing balance and tilting due to changes in the center of gravity, which would affect subsequent cutting or transportation.

[0020] Thirdly, this invention, by setting a spring-supported first sealing plug inside the pressure pipe to press against the inner wall of the pressure pipe, ensures a sequential injection of hydraulic oil into the annular cavity and telescopic rod when the hydraulic pump pressurizes. Due to the spring tension, the first sealing plug pushes against the top of the pressure pipe, blocking it. This allows the hydraulic oil to be preferentially injected into the annular cavity when the hydraulic pump pressurizes, causing the annular piston to extend and drive the limiting ring to push the square steel pipe for alignment. When the limiting ring pushes the square steel pipe until it is completely parallel to the contact surface of the limiting ring, the square steel pipe is in a straightened state, and the limiting ring cannot move further, resulting in increased pressure in the pressure pipe. When the pressure pushing the first sealing plug overcomes the spring tension, the hydraulic oil pushes open the first sealing plug and injects into the telescopic rod, causing the telescopic rod to extend and drive the pressure roller to press down for fixation. This avoids the situation where the telescopic rod drives the pressure roller to press down on the top of the square steel pipe before the limiting rings on both sides have aligned it, leading to increased friction between the square steel pipe and the positioning roller, making it more difficult for the limiting ring to correct the square steel pipe.

[0021] Fourth, this invention, through the linkage component, causes the limit ring to move along with the rack below the connecting ring. Since the racks connected to the limit rings on both sides mesh with the same linkage gear, the limit rings on both sides move synchronously and symmetrically on the positioning roller. This ensures that when the limit rings on both sides push the square steel pipe for positioning, they are always at the center of the positioning roller, which is exactly at the center of the cutting area of ​​the saw belt drive device. This avoids uneven force during saw belt cutting, which can lead to local wear of the device over time and affect the service life of the equipment.

[0022] V. In this invention, when the square steel pipe is conveyed to the top of the unloading platform, one end of the square steel pipe abuts against the trigger plate, causing the slide rod connected to the trigger plate to shift. This causes the first end face ratchet below the connecting rods at both ends of the slide rod to move, separating the first end face ratchet from the second end face ratchet and releasing the limiting position of the rotating shaft of the trigger plate. At this time, the weight of the steel pipe above the unloading platform will overcome the torsion spring force at the rotating shaft of the trigger plate, causing the unloading platform to rotate and tilt. The square steel pipe slides down the inclined surface of the unloading platform, falls back onto the slide, and slides down the inclined surface of the slide to the plane area of ​​the slide for placement. Furthermore, when the steel pipe slides out from the unloading platform... The rear slide automatically resets under the force of the torsion spring. When the trigger plate disengages from the square steel tube, the tension of the spring between the support ring and the first end face ratchet pushes the first end face ratchet to re-lock the second end face ratchet, limiting the downward rotation of the unloading table. This facilitates the continued transport of subsequent square steel tubes to the top of the unloading table, thereby achieving continuous automatic unloading, reducing manpower input, and improving processing efficiency. Furthermore, the position of the sliding sleeve on the trigger plate on the sliding rod can be adjusted by loosening and tightening the locking nut, making it convenient to adjust according to different cutting lengths, thus adapting to the unloading of square steel tubes of different cutting lengths. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a structural diagram showing the overall appearance of the invention; Figure 2 This is a schematic diagram of the saw belt drive device in this invention; Figure 3 This is a schematic diagram of the conveying mechanism in this invention; Figure 4 This is a partial sectional view of the support frame in this invention; Figure 5 This is a schematic diagram of the linkage component in this invention; Figure 6 This is a schematic diagram of the downward pressing component in this invention; Figure 7 This is a partial cross-sectional view of the pressure tube in this invention; Figure 8 This is a partial cross-sectional view of the first sealing plug in this invention; Figure 9 This is a diagram showing the connection relationship between the limiting ring and each component in this invention; Figure 10 This is a schematic diagram of the feeding mechanism in this invention; Figure 11 In this invention Figure 10 Enlarged view of the middle limit component area.

[0025] The reference numerals in the attached drawings are explained as follows: 1. Base; 2. Lifting platform; 3. Saw belt transmission device; 4. First support seat; 5. Conveying roller; 51. First helical gear; 52. Servo motor; 53. Rotating rod; 54. Second helical gear; 6. Support frame; 7. Positioning roller; 8. Limiting ring; 81. Annular cavity; 82. Annular piston; 83. Pipeline; 84. Connecting ring; 841. Linkage gear; 842. Rack; 85. First ball bearing; 9. Pressure roller; 91. Telescopic rod; 92. Pressure pipe ; 93. First sealing plug; 931. Return channel; 932. Second sealing plug; 10. Second support seat; 11. Unloading platform; 110. First support column; 111. Second ball bearing; 112. Slide rod; 113. Second support column; 114. Trigger plate; 115. Locking nut; 116. Connecting rod; 117. First end face ratchet; 118. Second end face ratchet; 119. Support ring; 12. Slide table; 121. Guide roller; 122. Limiting strip; 123. Baffle. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0027] See Figures 1-11As shown, this invention provides an intelligent cutting machine tool for steel pipe production, including a base 1. A saw belt drive device 3 is installed on the top of the base 1. A lifting platform 2 for driving the saw belt drive device 3 to rise and fall is connected to the top of the base 1. Conveying mechanisms are respectively installed at both ends of the base 1 for conveying steel pipes. The conveying mechanism includes a first support seat 4, which is fixedly connected to one end of the base 1. A support frame 6 is installed on the first support seat 4 near the saw belt drive device 3. A positioning roller 7 is rotatably connected to the inner wall of the support frame 6. A limit component is installed on the outside of the positioning roller 7. A pressing component is installed on the top of the support frame 6. The limit component includes two sets of limit rings 8, which are movably sleeved on both sides of the outer wall of the positioning roller 7. Annular cavities 81 are respectively opened on the inner wall of the support frame 6 at the positions corresponding to the two sets of limit rings 8. The inner walls of the two annular cavities 81 are slidably connected. An annular piston 82 is connected to push the limiting ring 8 to move on the outer wall of the positioning roller 7. By setting the limiting rings 8 on both sides of the outer wall of the positioning roller 7, when the conveying mechanism conveys the square steel pipe to the cutting position below the saw belt drive device 3, hydraulic oil can be injected into the annular cavity 81 on the two sets of support frames 6 to push the annular piston 82 out. The extended annular piston 82 pushes the limiting ring 8 to clamp and correct the square steel pipe at both ends of the cutting position. This avoids the problem of the cutting cross-section being tilted due to improper placement of the square steel pipe during cutting, which affects the cutting quality of the steel pipe. Several first balls 85 are rolled on the side of the limiting ring 8 that contacts the square steel pipe. By setting the first balls 85 to roll and contact the limiting ring 8 on the side that contacts the square steel pipe, the friction between the limiting ring 8 and the square steel pipe is reduced, so as to avoid excessive wear of the limiting ring 8.

[0028] In this embodiment, please refer to Figure 3 , Figure 6 The pressing component includes a telescopic rod 91, which is vertically connected to the top of the support frame 6. Two sets of pressure rollers 9 are rotatably connected to the bottom of the telescopic rod 91 through a connecting frame. By setting up the pressing component, when conveying the square steel pipe, hydraulic oil can be injected into the telescopic rod 91 to extend the telescopic rod 91, so as to facilitate driving the two sets of pressure rollers 9 to press down and press the top of the steel pipe. This avoids the situation where the material of the square steel pipe is cut off during the conveying process, which changes the distribution of mass and affects the position of the center of gravity, which may cause the square steel pipe to lose balance and tilt, affecting subsequent cutting or transportation.

[0029] Furthermore, please refer to Figure 4 , Figure 6Pipelines 83 are provided on both sides of the support frame 6. A hydraulic pump is installed inside the first support base 4. The hydraulic pump is connected to the two pipelines 83 through a three-way connector. The ends of the two pipelines 83 away from the hydraulic pump are connected to the telescopic rod 91 through a three-way connector. The middle sections of the two pipelines 83 are connected to the corresponding annular cavities 81 through branch pipes. A pressure pipe 92 is provided at the three-way connector of the telescopic rod 91. The hydraulic pump pressurizes the hydraulic oil and injects it into the corresponding annular cavity 81 and telescopic rod 91 through the pipelines 83. This facilitates the extension and retraction of the pressure roller 9 and the limiting ring 8 to the square steel pipe for positioning and fixing, so as to achieve the purpose of fixing square steel pipes of different models.

[0030] Furthermore, please refer to Figure 4 , Figure 6 , Figure 7 A first sealing plug 93 is slidably connected to the inner wall of the pressure pipe 92. A spring is fixedly connected between the inner wall of the pressure pipe 92 and the bottom of the first sealing plug 93. The top of the first sealing plug 93 abuts against the inner wall of the pressure pipe 92. By setting a spring inside the pressure pipe 92 to support the first sealing plug 93 against the inner wall of the pressure pipe 92, there is a sequence when the hydraulic pump pressurizes and injects hydraulic oil into the annular cavity 81 and the telescopic rod 91. Due to the tension of the spring, the first sealing plug 93 will push against the top of the pressure pipe 92, blocking the pressure pipe 92. This allows the hydraulic oil to be injected into the annular cavity 81 first when the hydraulic pump pressurizes, causing the annular piston 82 to extend and drive the limiting ring 8 to push the square steel pipe into the annular cavity 81. During the straightening process, when the limiting ring 8 pushes the square steel tube to be completely parallel to the contact surface of the limiting ring 8, the square steel tube is in a straightened state. The limiting ring 8 cannot move further, causing the pressure tube 92 to be under increased pressure. When the pressure pushing the first sealing plug 93 overcomes the tension of the spring, the hydraulic oil will push open the first sealing plug 93 and inject into the telescopic rod 91, causing the telescopic rod 91 to extend and drive the pressure roller 9 to press down for fixation. This avoids the situation where the limiting rings 8 on both sides have not yet straightened the square steel tube, and the telescopic rod 91 has already driven the pressure roller 9 to press down on the top of the square steel tube. The downward pressure causes the friction between the square steel tube and the positioning roller 7 to increase, making it more difficult for the limiting ring 8 to straighten the square steel tube.

[0031] In addition, please see Figure 6 , Figure 7 , Figure 8The inner wall of the first sealing plug 93 has a return channel 931, and a second sealing plug 932 is installed inside the return channel 931. A spring is fixedly connected between the top of the second sealing plug 932 and the inner wall of the return channel 931, and the second sealing plug 932 abuts against the bottom of the inner wall of the return channel 931. By setting a spring in the return channel 931 on the first sealing plug 93 to support the second sealing plug 932 against the bottom of the return channel 931, it can act as a one-way valve. It can ensure that when the hydraulic oil is about to enter the pressure pipe 92, it will not affect the sealing performance of the first sealing plug 93 against the inner wall of the pressure pipe 92. When the hydraulic oil returns, the negative pressure generated by the return of the hydraulic oil overcomes the tension of the spring, causing the second sealing plug 932 to disengage from the state of abutting against the inner wall of the return channel 931, so that the hydraulic oil can flow, causing the telescopic rod 91 to retract and drive the pressure roller 9 to lift.

[0032] In addition, please see Figure 1 , Figure 5 , Figure 9 A linkage assembly is provided between the two sets of limiting rings 8. The linkage assembly includes two sets of connecting rings 84, which are rotatably connected to the outer walls of the two sets of limiting rings 8. A rack 842 is fixedly connected to the bottom of each of the two sets of connecting rings 84. A linkage gear 841 is rotatably connected to the top of the first support base 4, positioned between the two racks 842, and meshes with the two racks 842. The racks 842 are slidably connected to the first support base 4 via a slide rail. The connecting rings 84 are fixedly connected to the corresponding annular pistons 82. This linkage assembly is used to achieve this linkage. This causes the limiting ring 8 to move along with the rack 842 below the connecting ring 84 when it moves. Since the racks 842 connected to the limiting rings 8 on both sides mesh with the same linkage gear 841, the limiting rings 8 on both sides move in a synchronous and symmetrical state when they move on the positioning roller 7. This ensures that the limiting rings 8 on both sides are always in the center position of the positioning roller 7 when they push the square steel pipe for positioning, which is exactly in the center position of the cutting area of ​​the saw belt drive device 3. This avoids uneven force during saw belt cutting, which can lead to local wear of the device over time and affect the service life of the equipment.

[0033] It is worth noting that, please refer to Figure 1 , Figure 3The top of the first support base 4 is rotatably connected to several sets of conveying rollers 5. The conveying rollers 5 and the positioning rollers 7 are arranged at the same height. The same end of the positioning rollers 7 and the conveying rollers 5 is fixedly connected to a first helical gear 51. The top of the first support base 4 is fixedly connected to a servo motor 52. The output end of the servo motor 52 is fixedly connected to a rotating rod 53. Several second helical gears 54 are fixedly sleeved on the outer wall of the rotating rod 53. Each second helical gear 54 meshes with the first helical gear 51 at the corresponding position. The servo motor 52 drives the second helical gears 54 on the outer wall of the rotating rod 53 to rotate. The meshing first helical gears 51 drive the positioning rollers 7 and several conveying rollers 5 to rotate synchronously. This facilitates the conveying of some long square steel pipes and enables automatic feeding, thereby improving the efficiency of pipe processing.

[0034] It is worth noting that, please refer to Figure 1 , Figure 10 , Figure 11One end of the conveying mechanism is equipped with a feeding mechanism, which includes a second support base 10. The second support base 10 is fixedly connected to one of the first support bases 4. A feeding platform 11 is provided above the second support base 10. A first support column 110 is fixedly connected to the top of the second support base 10, and the rotating shaft of the feeding platform 11 is rotatably connected to the top of the first support column 110. A torsion spring for resetting is provided at the connection between the rotating shaft and the first support column 110 on the feeding platform 11. Several second ball bearings 111 are rolledly connected to the top of the feeding platform 11. By setting a rotatable feeding platform 11, when the cut square steel pipe is conveyed to the feeding platform 11, the feeding platform 11 can be tilted by rotation, causing the square steel pipe to slide down the feeding platform 11 due to the change in the center of gravity. The second ball bearing 111 installed on the top of the platform 11 reduces the resistance when the square steel tube slides down the inclined surface, making the slide smoother. A second support column 113 is fixedly connected to the top of the second support base 10. The second support column 113 is slidably connected to a slide rod 112 above the unloading platform 11. A trigger plate 114 is slidably connected to the outer wall of the slide rod 112 via a sliding sleeve. The trigger plate 114 is located above the unloading platform 11, and a locking nut 115 is installed at the position of the sliding sleeve on the trigger plate 114. Connecting rods 116 are fixedly connected to both ends of the slide rod 112. A limit assembly is provided at the bottom of the connecting rod 116, including a first end face ratchet 117 fixedly connected to the bottom of the connecting rod 116. The first end face ratchet 117 is slidably sleeved on one end of the rotating shaft on the unloading platform 11. The outer wall of the rotating shaft on the unloading platform 11 is fixedly sleeved with a second end face ratchet 118 that mates with the first end face ratchet 117. The outer wall of the rotating shaft on the unloading platform 11 is fixedly sleeved with a support ring 119. A spring is fixedly connected between the support ring 119 and the first end face ratchet 117. A slide table 12 is fixedly connected to one side of the second support seat 10. A guide roller 121 is fixedly connected to the top of the slide table 12. When the square steel tube is conveyed above the unloading platform 11, one end of the square steel tube hits the trigger plate 114, causing the slide rod 112 connected to the trigger plate 114 to move, thereby driving the first end face ratchet 117 below the connecting rods 116 at both ends of the slide rod 112 to move, so that the first end face ratchet 117 and the second end face ratchet 118 mate with the first end face ratchet 117. The second end ratchet 118 separates, releasing the limiting position of the rotating shaft of the trigger plate 114. At this time, the weight of the steel pipe above the unloading platform 11 overcomes the torsion spring force at the rotating shaft of the trigger plate 114, causing the unloading platform 11 to rotate and tilt. This causes the square steel pipe to slide down the inclined surface of the unloading platform 11. The slid-down square steel pipe falls back onto the slide table 12 and slides down the inclined surface of the slide table 12 to the plane area of ​​the slide table 12 for placement. After the steel pipe slides out from the unloading platform 11, the slide table 12 automatically resets under the action of the torsion spring force. When the trigger plate 114 disengages from the square steel pipe, the tension of the spring between the support ring 119 and the first end ratchet 117 will push the first end ratchet 117 to re-lock the second end ratchet 118, limiting the downward rotation direction of the unloading platform 11.To facilitate the continued transport of square steel pipes to the unloading platform 11, thus achieving continuous automatic unloading, reducing manpower input and improving processing efficiency, the guide rollers 121 on the surface of the slide table 12 can reduce the deviation caused by uneven friction between the two ends of the square steel pipe and the slide table 12 when the square steel pipe slides on the slide table 12. A limit strip 122 is fixedly connected to the side of the slide table 12 near the unloading platform 11 to limit the unloading platform 11, preventing excessive tilting angle and ensuring smooth unloading of the square steel pipes on the unloading platform 11. The square steel pipe slides onto the slide table 12. A baffle 123 is fixedly connected to one side of the bottom of the slide table 12 to prevent the square steel pipe from sliding off the slide table 12. The position of the sliding sleeve on the trigger plate 114 on the slide rod 112 can be adjusted by tightening or loosening the locking nut 115, so as to facilitate adjustment according to different cutting lengths and thus adapt to the cutting of square steel pipes of different cutting lengths.

[0035] Working principle In use, the square steel pipe to be cut is placed above the conveying roller 5. The servo motor 52 is started, driving the second helical gear 54 on the outer wall of the rotating rod 53 to rotate. This, in turn, drives the positioning roller 7 and several conveying rollers 5 to rotate synchronously via the meshing first helical gear 51, facilitating the conveying of the square steel pipe. When the square steel pipe reaches the support frame 6, hydraulic oil is pressurized by the hydraulic pump and injected through the pipeline 83 into the corresponding annular cavity 81 and telescopic rod 91. This facilitates the extension and retraction of the pressure roller 9 and the limiting ring 8 to position and fix the square steel pipe. By setting a spring-supported first sealing plug 93 inside the pressure pipe 92 to pressurize and inject hydraulic oil into the annular cavity 81 and telescopic rod 91 in a sequential manner, the spring... The tension of the spring pushes the first sealing plug 93 against the top of the pressure pipe 92, blocking the pressure pipe 92. This causes the hydraulic oil to be preferentially injected into the annular cavity 81 when the hydraulic pump pressurizes, causing the annular piston 82 to extend and drive the limiting ring 8 to push the square steel tube for alignment. When the limiting ring 8 pushes the square steel tube to be completely parallel with the contact surface of the limiting ring 8, the square steel tube is in a straightened state. When the limiting ring 8 moves, it will drive the rack 842 below the connecting ring 84 to move together. Since the racks 842 connected to the two limiting rings 8 mesh with the same linkage gear 841, the two limiting rings 8 are in a state of synchronous and symmetrical movement when they move on the positioning roller 7. This ensures that the two limiting rings 8 are always in the center position of the positioning roller 7 when pushing the square steel tube for positioning. That is, it is exactly in the center of the cutting area of ​​the saw belt drive device 3, so as to avoid uneven force during saw belt cutting. When the limit ring 8 can no longer move, the pressure pipe 92 is under increased pressure. When the pressure pushing the first sealing plug 93 overcomes the tension of the spring, the hydraulic oil will push open the first sealing plug 93 and inject into the telescopic rod 91, so that the telescopic rod 91 extends and drives the pressure roller 9 to press down for fixation, thereby avoiding the situation where the limit rings 8 extending on both sides have not yet aligned the square steel pipe. When the square steel pipe is transported to the top of the unloading table 11, one end of the square steel pipe hits the trigger plate 114, causing the slide rod 112 connected to the trigger plate 114 to move, thereby driving the first end face ratchet 117 under the connecting rod 116 at both ends of the slide rod 112 to move, so that the first end face ratchet 117 and the trigger plate 114 are in contact with the trigger plate 114. The second end ratchet 118 separates, releasing the limiting position of the rotating shaft of the trigger plate 114. At this time, the weight of the steel pipe above the unloading platform 11 overcomes the torsion spring force at the rotating shaft of the trigger plate 114, causing the unloading platform 11 to rotate and tilt. This causes the square steel pipe to slide down the inclined surface of the unloading platform 11. The slid-down square steel pipe falls back onto the slide table 12 and slides down the inclined surface of the slide table 12 to the plane area of ​​the slide table 12 for placement. After the steel pipe slides out from the unloading platform 11, the slide table 12 automatically resets under the action of the torsion spring force. When the trigger plate 114 disengages from the square steel pipe, the tension of the spring between the support ring 119 and the first end ratchet 117 will push the first end ratchet 117 to re-lock the second end ratchet 118, limiting the downward rotation direction of the unloading platform 11.This facilitates the continued transport of square steel pipes to the unloading platform 11, enabling continuous automatic unloading. The position of the sliding sleeve on the trigger plate 114 on the slide rod 112 can be adjusted by tightening and loosening the locking nut 115, allowing for adjustments based on different cutting lengths and accommodating the unloading of square steel pipes of varying lengths.

[0036] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An intelligent cutting machine for steel pipe production, characterized in that, Includes a base (1), the top of which is provided with a saw belt drive device (3), the top of which is connected to a lifting platform (2) that drives the saw belt drive device (3) to rise and fall, and the two ends of the base (1) are respectively provided with a conveying mechanism for conveying steel pipes. The conveying mechanism includes a first support base (4), which is fixedly connected to one end of the base (1). A support frame (6) is provided on the first support base (4) near the saw belt transmission device (3). A positioning roller (7) is rotatably connected to the inner wall of the support frame (6). A limit component is provided on the outside of the positioning roller (7). A pressing component is provided on the top of the support frame (6). The limiting assembly includes two sets of limiting rings (8). The limiting rings (8) are movably sleeved on both sides of the outer wall of the positioning roller (7). The side of the limiting ring (8) that contacts the square steel tube is rolled with a number of first balls (85). The inner wall of the support frame (6) is provided with annular cavities (81) corresponding to the positions of the two sets of limiting rings (8). The inner walls of the two annular cavities (81) are slidably connected with annular pistons (82) for pushing the limiting rings (8) to move on the outer wall of the positioning roller (7). The pressing assembly includes a telescopic rod (91), which is vertically connected to the top of the support frame (6), and the bottom of the telescopic rod (91) is rotatably connected to two sets of pressure rollers (9) through a connecting frame. A linkage component is provided between the two sets of limiting rings (8). The linkage component includes two sets of connecting rings (84). The two sets of connecting rings (84) are rotatably connected to the outer walls of the two sets of limiting rings (8). The bottom of the two sets of connecting rings (84) is fixedly connected to racks (842). The top of the first support base (4) is rotatably connected to a linkage gear (841) between the two racks (842). The linkage gear (841) meshes with the two racks (842). The racks (842) are slidably connected to the first support base (4) through a slide rail. The connecting rings (84) are fixedly connected to the annular piston (82) at the corresponding position. One end of the conveying mechanism is provided with a feeding mechanism, which includes a second support base (10). The second support base (10) is fixedly connected to one of the first support bases (4). A feeding platform (11) is provided above the second support base (10). A first support column (110) is fixedly connected to the top of the second support base (10). The rotating shaft of the feeding platform (11) is rotatably connected to the top of the first support column (110). A torsion spring for resetting is provided at the connection between the rotating shaft on the feeding platform (11) and the first support column (110). Several second balls (111) are tumbledly connected to the top of the feeding platform (11). A second support column (113) is fixedly connected to the top of the second support base (10). A slide rod (112) is slidably connected to the second support column (113) above the unloading platform (11). A trigger plate (114) is slidably connected to the outer wall of the slide rod (112) through a sliding sleeve. The trigger plate (114) is located above the unloading platform (11). A locking nut (115) is provided on the trigger plate (114) at the position of the sliding sleeve. Connecting rods (116) are fixedly connected to both ends of the slide rod (112). A bottom of the connecting rod (116) is provided with a The limiting component includes a first end face ratchet (117), which is fixedly connected to the bottom of the connecting rod (116). The first end face ratchet (117) is slidably sleeved on one end of the rotating shaft on the unloading platform (11). The outer wall of the rotating shaft on the unloading platform (11) is fixedly sleeved with a second end face ratchet (118) that cooperates with the first end face ratchet (117). The outer wall of the rotating shaft on the unloading platform (11) is fixedly sleeved with a support ring (119). A spring is fixedly connected between the support ring (119) and the first end face ratchet (117).

2. The intelligent cutting machine for steel pipe production according to claim 1, characterized in that: Pipelines (83) are provided on both sides of the support frame (6). A hydraulic pump is installed inside the first support base (4), and the hydraulic pump is connected to the two pipelines (83) through a three-way connector. The ends of the two pipelines (83) away from the hydraulic pump are connected to the telescopic rod (91) through a three-way connector. The middle sections of the two pipelines (83) are connected to the corresponding annular cavity (81) through branch pipes. A pressure pipe (92) is provided at the position of the three-way connector at the telescopic rod (91).

3. The intelligent cutting machine for steel pipe production according to claim 2, characterized in that: The inner wall of the pressure tube (92) is slidably connected to a first sealing plug (93), and a spring is fixedly connected between the inner wall of the pressure tube (92) and the bottom of the first sealing plug (93), with the top of the first sealing plug (93) abutting against the inner wall of the pressure tube (92).

4. The intelligent cutting machine for steel pipe production according to claim 3, characterized in that: The inner wall of the first sealing plug (93) is provided with a return channel (931), and a second sealing plug (932) is provided inside the return channel (931). A spring is fixedly connected between the top of the second sealing plug (932) and the inner wall of the return channel (931), and the second sealing plug (932) abuts against the bottom of the inner wall of the return channel (931).

5. The intelligent cutting machine for steel pipe production according to claim 1, characterized in that: The top of the first support base (4) is rotatably connected to several sets of conveying rollers (5). The positioning roller (7) and the same end of the conveying roller (5) are fixedly connected to a first helical gear (51). The top of the first support base (4) is fixedly connected to a servo motor (52). The output end of the servo motor (52) is fixedly connected to a rotating rod (53). The outer wall of the rotating rod (53) is fixedly fitted with several second helical gears (54), and each second helical gear (54) meshes with the first helical gear (51) at the corresponding position.

6. The intelligent cutting machine for steel pipe production according to claim 1, characterized in that: A slide (12) is fixedly connected to one side of the second support base (10), a guide roller (121) is fixedly connected to the top of the slide (12), a limit strip (122) is fixedly connected to the side of the slide (12) near the unloading platform (11), and a baffle (123) is fixedly connected to the bottom side of the slide (12).

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