A sports building material steel pipe cutting device

Abstract

The present invention belongs to the field of slitting devices, specifically a sports building material steel pipe slitting device, including a bed body, and a cutting assembly, a fixing assembly, a preheating assembly, and a guide assembly are sequentially arranged in the horizontal direction of the top of the bed body; the cutting assembly is used to slitting the steel pipe, and includes a vertical plate; the vertical plate is fixedly installed on the top of the bed body; a cylinder is fixedly connected to the top of the vertical plate; the output end of the cylinder is fixedly connected to a connecting seat, and the connecting seat and the inner wall of the vertical plate are slidably connected; a first motor is fixedly installed on one side of the connecting seat; a tool is fixedly connected to the output end of the first motor; through the cooperation of the heating plate and the hollow tube, the heated air flow can be ejected through the heating plate and preheat the surface of the steel pipe, so that the temperature of the steel pipe material is increased and the plasticity is improved, which is convenient for the tool to cut the steel pipe, reduces the roughness of the cut surface of the steel pipe, and makes the cut surface smoother.

Description

Technical Field

[0001] The invention relates to the field of slitting devices, in particular to a slitting device for sports building materials steel pipes. Background Art

[0002] Steel pipes are pipes made of steel, characterized by high strength, good toughness, and corrosion resistance. Compared to traditional building materials, steel pipes are lighter and easier to transport and install. They are particularly widely used in sports building materials. For example, stadium roof structures utilize extensive steel pipes, meeting the complex structure and extremely high material requirements. Steel pipes possess excellent properties such as high strength, corrosion resistance, and weather resistance, enabling them to withstand heavy loads and provide excellent stability and safety.

[0003] Steel pipes need to be cut during the processing; in steel pipe slitting, metal cutting is the process of using tools to remove excess material from the steel pipe to obtain parts that meet the requirements of shape, dimensional accuracy and surface quality.

[0004] There are technical solutions for steel pipe cutting in the prior art. For example, a Chinese patent with publication number CN118926600A discloses a cutting device for stainless steel pipe production. The automatic loading mechanism can realize automatic loading of stainless steel pipes, thereby increasing the cutting efficiency of stainless steel pipes and saving labor costs.

[0005] In the existing technology, steel pipes are usually transported directly to the cutting tool for slitting. During use and observation, it was found that this cutting method lacks preheating measures. Due to the high surface hardness of the steel pipe, it will increase the difficulty of cutting and increase the roughness of the cut surface, affecting the cutting quality.

[0006] Therefore, in view of the above problems, a sports building material steel pipe slitting device is proposed. Summary of the Invention

[0007] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0008] The technical solution adopted by the present invention to solve its technical problems is: the sports building material steel pipe slitting device described in the present invention includes a bed body, and the top of the bed body is horizontally provided with a cutting assembly, a fixing assembly, a preheating assembly, and a guide assembly in sequence; the cutting assembly is used to cut the steel pipe, and includes a vertical plate; the vertical plate is fixedly installed on the top of the bed body; the top of the vertical plate is fixedly connected to a cylinder; the output end of the cylinder is fixedly connected to a connecting seat, and the connecting seat and the inner wall of the vertical plate are slidably connected; a first motor is fixedly installed on one side of the connecting seat; a tool is fixedly connected to the output end of the first motor; the fixing assembly is used to clamp and fix the steel pipe when cutting; the preheating assembly is used to heat the surface of the steel pipe before cutting, and includes a heating pipe; the The heating tube is fixedly installed on the top of the bed; the top of the heating tube is connected to an air inlet pipe; a plurality of hollow tubes are arranged through the surface of the heating tube and are slidably connected; one end of the hollow tube is fixedly connected to a horizontal plate, and the other end is fixedly connected to a heating plate; the surface of the hollow tube inside the heating tube is porous; the surface of the heating plate is porous; a spring is installed between the inner wall of the horizontal plate and the outer wall of the heating tube; the guide assembly is used to limit and guide the steel pipe during transportation; through the cooperation of the heating plate and the hollow tube, the heated air flow can be ejected through the heating plate and preheat the surface of the steel pipe, so that the temperature of the steel pipe material is increased and the plasticity is improved, which is convenient for the tool to cut the steel pipe, reduces the roughness of the cut surface of the steel pipe, and makes the cut surface smoother.

[0009] Preferably, side plates are symmetrically fixed on both sides of the transverse plate; a plurality of sealing rods are fixed to the surface of the side plates, and the ends of the sealing rods are chamfered; the sealing rods and the heating tubes are through-set and slidably connected; by setting the sealing rods, when the size of the steel tube is large, the sealing rods can slide into the heating tube and increase the airflow outlet area, so as to increase the heated airflow reaching the surface of the steel tube and improve the uniformity of the device when heating the steel tube.

[0010] Preferably, a plurality of cavities are provided on the surface of the heating plate; the inner wall of the cavity is rotatably connected to the first guide wheel; the inner wall of the cavity is porous; by arranging the first guide wheel, the first guide wheel can be used to resist the outer wall of the steel pipe when the steel pipe and the heating plate are in contact. On the one hand, the first guide wheel can reduce the sliding friction between the steel pipe and the heating plate and reduce the conveying resistance. On the other hand, the first guide wheel can provide additional support for the steel pipe to ensure that there is a certain space between the holes on the surface of the heating plate and the steel pipe, reducing the obstruction of the holes on the surface of the heating plate by the steel pipe. At the same time, part of the airflow in the heating plate can be ejected from the cavity and guided by the rotating first guide wheel, and can be ejected from one side of the first guide wheel to form a local jet, thereby reducing the obstruction of the first guide wheel on the steel pipe surface when heating, and improving the uniformity of heating on the steel pipe surface.

[0011] Preferably, a plurality of spoilers are symmetrically fixed on both sides of the first guide wheel, and the spoilers are arc-shaped structures; by arranging the spoilers, the airflow ejected from both sides of the first guide wheel is weakly guided by the first guide wheel, and when the first guide wheel rotates, the spoilers can drive the spoilers to rotate together, and the spoilers can disrupt the airflow here, so that the airflow ejected in the cavity can form multiple jets under the disruptive effect of the spoilers and heat the steel pipe from different angles, so as to reduce the cold area on the surface of the steel pipe.

[0012] Preferably, elastic insulation cloth is symmetrically fixed on both sides of the heating tube; elastic rings are fixed on the ends of the elastic insulation cloth; a plurality of elastic sheets are fixed on the outer wall of the elastic insulation cloth; when the elastic sheets are working normally, they will apply pre-pressure to the elastic insulation cloth and cause the elastic insulation cloth and the elastic rings to shrink, so that the steel pipe can be inserted between a pair of elastic rings in advance, and the surface of the elastic ring can be made of smooth material or provided with wear-resistant measures to reduce the resistance between the steel pipe and the steel pipe. When the steel pipe is preheated in the heating tube, the elastic insulation cloth and elastic rings on both sides will seal the heating section of the steel pipe to reduce heat loss, improve the utilization rate of heat energy of the device, and also improve the uniformity of heating the steel pipe.

[0013] 14. The repairing kit for automotive dents, according to claim 13, wherein a bottom of the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The through-hole, the bosses comprise a through-hole, a screw bolt, and a nut. The through-hole, the bosses comprise a through-hole, a screw bolt, and a nut. The through-hole, the bosses comprise a through-hole, a screw bolt, and a nut.

[0014] Preferably, the control component includes multiple racks; the racks are correspondingly arranged and meshing with the first gear; a slide is fixedly connected to the bottom of the rack, and the slide is slidably connected to the top of the bed; a screw is threadedly connected to the inner wall of one of the slides; the screw is rotatably connected to the gantry; a second motor is provided on one side of the screw, and the output end of the second motor is fixedly connected to the screw; a connecting rod is fixed between adjacent slides; when the first gear needs to be rotationally adjusted, the second motor can be started to drive the screw to rotate, and the screw can thread the slide to which it is connected and make it slide along the bed, and the slide can be moved in coordination with the connecting rod, so the slide can move together with the rack and mesh with the rack and the first gear, so as to realize coordinated control of multiple first gears and improve the convenience of operation when controlling all first gears.

[0015] Preferably, a shell is provided on the outer wall of the screw, and the shell is fixedly connected to the inner wall of the gantry; a slide groove is provided at the bottom of the shell, and the slide plate and the shell are penetrated and slidably connected; by setting the shell, the shell can provide closed protection for the screw to reduce debris, dust and other particulate impurities attached to the inner wall screw groove when the screw is in the processing workshop, thereby extending the service life of the screw.

[0016] Preferably, the fixing assembly includes a fixing seat; the fixing seat is fixedly connected to the top of the bed; a third motor is fixedly connected to one side of the fixing seat; the output end of the third motor is fixedly connected to the second gear; a third gear is meshed with one side of the second gear, and the second gear and the third gear are both rotatably connected to the fixing seat; a plurality of wavy grooves are provided on the surface of the third gear, and the wavy grooves are slidably connected to a plurality of second sliders; the end of the second slider is fixedly connected to a pressure plate; the second slider is also slidably connected to the fixing seat; after the steel pipe is slid out of the fixing seat to a suitable length, the second gear can be driven to rotate by starting the third motor, the second gear can be meshed with the third gear and the third gear can be rotated, and the third gear can drive the plurality of second sliders to approach the outer wall of the steel pipe at the same time through the wavy groove and cooperate with the groove on the surface of the fixed seat until the pressure plate and the outer wall of the steel pipe are against each other, thereby realizing rapid fixation of the steel pipe. At the same time, the system assembly composed of the second slider and the pressure plate here can be arranged with the above-mentioned guide assembly, that is, symmetrically staggered to improve the stability when clamping the steel pipe.

[0017] Preferably, a groove is provided on one side of the connecting seat; a plurality of counterweights are provided inside the groove; by providing the groove and the counterweights, the weight on one side of the connecting seat can be compensated so that the center of mass of the connecting seat surface is coaxial with the output end of the cylinder, thereby reducing the lateral force on the shaft end of the cylinder when it is working, thereby improving the stability and service life of the cylinder when it is working.

[0018] The present invention is beneficial in that:

[0019] 1. The sports building material steel pipe slitting device described in the present invention, through the cooperation of the heating plate and the hollow tube, allows the heated air flow to be ejected through the heating plate and preheat the surface of the steel pipe, so as to increase the temperature of the steel pipe material and improve the plasticity, facilitate the cutting work of the steel pipe by the tool, reduce the roughness of the cut surface of the steel pipe, and make the cut surface smoother.

[0020] 2. The sports building material steel pipe slitting device described in the present invention is equipped with a sealing rod. When the steel pipe is large in size, the sealing rod can slide into the heating pipe and increase the air flow outlet area to increase the heated air flow reaching the surface of the steel pipe and improve the uniformity of the device when heating the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of the main body of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the bed body in the present invention;

[0024] Figure 3 It is a structural schematic diagram of the neutral plate of the present invention;

[0025] Figure 4 Schematic diagram of the structure of the heating tube in the present invention;

[0026] Figure 5 Schematic diagram of the structure of the horizontal plate in the present invention;

[0027] Figure 6 Schematic diagram of the structure of the heating plate in the present invention;

[0028] Figure 7 Schematic diagram of the structure of the cavity in the present invention;

[0029] Figure 8 Schematic diagram of the structure of the fixed plate in the present invention;

[0030] Figure 9 Schematic diagram of the structure of the first gear in the present invention;

[0031] Figure 10 It is a structural schematic diagram of the fixing seat in the present invention.

[0032] In the figure: 1. bed; 12. vertical plate; 13. cylinder; 14. connecting seat; 15. first motor; 16. tool; 17. heating pipe; 18. air intake pipe; 19. hollow tube; 110. cross plate; 111. heating plate; 2. side plate; 22. sealing rod; 3. cavity; 32. first guide wheel; 4. spoiler; 5. elastic insulation cloth; 52. elastic ring; 53. elastic sheet; 6. gantry; 62. fixing plate; 63. first slider; 64. second guide wheel; 7. first gear; 72. rack; 73. slide plate; 74. screw; 75. second motor; 76. connecting rod; 8. housing; 9. third motor; 91. second gear; 92. third gear; 93. second slider; 94. pressure plate; 95. fixing seat; 1000. groove; 1001. counterweight. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Specific examples are given below.

[0035] See also Figures 1 to 10 As shown, a sports building material steel pipe slitting device according to an embodiment of the present invention comprises a bed 1, wherein a cutting assembly, a fixing assembly, a preheating assembly, and a guide assembly are sequentially arranged in a horizontal direction on the top of the bed 1; the cutting assembly is used to slit the steel pipe, and comprises a vertical plate 12; the vertical plate 12 is fixedly mounted on the top of the bed 1; a cylinder 13 is fixedly connected to the top of the vertical plate 12; a connecting seat 14 is fixedly connected to the output end of the cylinder 13, and the connecting seat 14 and the inner wall of the vertical plate 12 are slidably connected; a first motor 15 is fixedly mounted on one side of the connecting seat 14; a tool 16 is fixedly connected to the output end of the first motor 15; the fixing assembly is used to cut the steel pipe when cutting. Clamped and fixed; the preheating assembly is used to heat the surface of the steel pipe before cutting, and includes a heating pipe 17; the heating pipe 17 is fixedly installed on the top of the bed 1; the top of the heating pipe 17 is connected to an air inlet pipe 18; a plurality of hollow tubes 19 are set through the surface of the heating pipe 17 and are slidably connected; one end of the hollow tube 19 is fixedly connected to a horizontal plate 110, and the other end is fixedly connected to a heating plate 111; the surface of the hollow tube 19 located inside the heating pipe 17 is porous; the surface of the heating plate 111 is porous; a spring is installed between the inner wall of the horizontal plate 110 and the outer wall of the heating pipe 17; the guide assembly is used to limit and guide the steel pipe during transportation;

[0036] During operation, the steel pipe can be sequentially passed through the guide assembly, preheating assembly, and fixed assembly and transported. The steel pipe transporting power can be transported by radial power, specifically by manual pushing or conveying by friction of conveying rollers. It is not specifically limited here. After the steel pipe slides out of the fixed assembly to a certain length, the steel pipe can be fixed by the fixed assembly, and the cutting assembly can be started to cut it. Specifically, the cylinder 13 is started and pushes the connecting seat 14 to make it move vertically along the vertical plate 12. A guide rod is provided between the connecting seat 14 and the vertical plate 12. The connecting seat 14 can bring the first motor 15 and the cutter 16 on one side to approach the steel pipe. During the process, the first motor 15 will start and drive the cutter 16 to rotate, and the steel pipe is cut by the rotating cutter 16. The cut steel pipe can fall into the relevant collection device through the chute on one side of the bed 1. The above is a mature existing technology, so the specific structure and principle involved will not be repeated here. Before the steel pipe is cut, the cut section of the steel pipe will pass through the heating pipe 17. The air inlet pipe 18 at the top of the heating pipe 17 can be connected to the hot air flow supply equipment to pass the heated air flow through The heat is ejected from the holes on the surface of the heating plate 111 after passing through the holes on the surface of the air inlet pipe 18, the heating pipe 17 and the hollow pipe 19, so as to dry-heat the surface of the steel pipe and increase the surface temperature of the steel pipe before cutting. At the same time, for steel pipes of different sizes, the heating plate 111 can expand along with the hollow pipe 19 and the cross plate 110 under the extrusion of the steel pipe and make the spring in a stretched state, thereby adapting it. It is also worth mentioning that the heating pipe 17 should be made of a low thermal conductivity material to reduce the impact of heat overflow on the spring. At the same time, sports building materials are involved The steel pipe is generally Q235B steel, so the preheating temperature here can be specifically about 100°C, which is within the working temperature range of the spring. Therefore, combined with the above description, the service life of the spring here can be regardless of the temperature influence; through the cooperation of the heating plate 111 and the hollow tube 19, the heated air flow can be ejected through the heating plate 111 and preheated on the surface of the steel pipe, so that the temperature of the steel pipe material is increased and the plasticity is improved, which is convenient for the tool 16 to cut the steel pipe, reduce the roughness of the cut surface of the steel pipe, and make the cut surface smoother.

[0037] See also Figures 3 to 6 As shown, the side plates 2 are symmetrically fixed on both sides of the horizontal plate 110; a plurality of sealing rods 22 are fixed on the surface of the side plates 2, and the ends of the sealing rods 22 are chamfered; the sealing rods 22 and the heating tubes 17 are penetrated and slidably connected;

[0038] When the size of the steel pipe is large, the system components composed of the heating plate 111, the hollow tube 19, and the cross plate 110 will expand outward adaptively. When the cross plate 110 moves, it can move with the side plate 2 and the sealing rod 22, and the end of the sealing rod 22 will slide into the interior of the heating tube 17. As the moving stroke of the sealing rod 22 increases, the gap between the end of the sealing rod 22 and the inner wall of the heating tube 17 will also increase, so that the gap between the sealing rod 22 and the heating tube 17 can also discharge the heated airflow, so as to expand the flow range of the airflow and the heating area of ​​the steel pipe. Through the above settings, When the size of the steel pipe is small, the airflow can only be ejected from the surface of the heating plate 111. Since the total air pressure in the heating tube 17 remains unchanged, the airflow velocity can be accelerated and the heat exchange between the airflow and the steel tube can be enhanced. In addition, since the end of the sealing rod 22 is chamfered, the gap here will slowly increase linearly, thereby slowly reducing the airflow velocity at the heating plate 111. By setting the sealing rod 22, when the size of the steel tube is large, the sealing rod 22 can slide into the heating tube 17 and increase the airflow outlet area to increase the heated airflow reaching the surface of the steel tube and improve the uniformity of the device when heating the steel tube.

[0039] See also Figure 6 and Figure 7 As shown, the surface of the heating plate 111 is provided with a plurality of cavities 3; the inner wall of the cavity 3 is rotatably connected to a first guide wheel 32; the inner wall of the cavity 3 is porous;

[0040] By setting the first guide wheel 32, the first guide wheel 32 can be used to resist the outer wall of the steel pipe when the steel pipe and the heating plate 111 are in contact. On the one hand, the first guide wheel 32 can reduce the sliding friction between the steel pipe and the heating plate 111 and reduce the conveying resistance. On the other hand, the first guide wheel 32 can provide additional support for the steel pipe to ensure that there is a certain space between the holes on the surface of the heating plate 111 and the steel pipe, reducing the obstruction of the steel pipe on the holes on the surface of the heating plate 111. At the same time, part of the airflow in the heating plate 111 can be ejected from the cavity 3 and guided by the rotating first guide wheel 32. It can be ejected from one side of the first guide wheel 32 to form a local jet, thereby reducing the obstruction of the first guide wheel 32 on the steel pipe surface when heating the steel pipe surface, and improving the uniformity of heating on the steel pipe surface.

[0041] See also Figure 7 As shown, a plurality of spoilers 4 are symmetrically fixed on both sides of the first guide wheel 32, and the spoilers 4 are arc-shaped structures;

[0042] By setting the spoiler 4, the airflow ejected from both sides of the first guide wheel 32 is less guided by the first guide wheel 32, and when the first guide wheel 32 rotates, it can drive the spoiler 4 to rotate together, and the spoiler 4 can disrupt the airflow here, so that the airflow ejected in the cavity 3 can form multiple jets under the disruptive effect of the spoiler 4 and heat the steel pipe from different angles, so as to reduce the cold area on the surface of the steel pipe.

[0043] See also Figure 4 As shown, the heating tube 17 is symmetrically fixed with elastic insulation cloth 5 on both sides; the ends of the elastic insulation cloth 5 are fixed with elastic rings 52; the outer wall of the elastic insulation cloth 5 is fixed with multiple elastic sheets 53;

[0044] When the elastic sheet 53 is working normally, it will apply pre-pressure to the elastic insulation cloth 5 and cause the elastic insulation cloth 5 and the elastic ring 52 to shrink. Therefore, the steel pipe can be inserted between a pair of elastic rings 52 in advance. The surface of the elastic ring 52 can be made of smooth material or provided with wear-resistant measures to reduce the resistance between the steel pipe and the elastic ring 52. When the steel pipe is preheated in the heating pipe 17, the elastic insulation cloth 5 and the elastic ring 52 on both sides will seal the heating section of the steel pipe to reduce heat loss, improve the utilization rate of heat energy of the device, and also improve the uniformity of heating the steel pipe.

[0045] See also Figure 1 、 Figure 8 and Figure 9 As shown, the guide assembly includes a plurality of gantries 6; a pair of fixed plates 62 are fixedly connected to the bottom of the gantries 6; a first gear 7 is rotatably connected between the pair of fixed plates 62; a plurality of wave-shaped grooves are provided on the surface of the first gear 7; a plurality of first sliders 63 are slidably connected to the surface of the fixed plates 62; the first sliders 63 are slidably connected to the wave-shaped grooves on the surface of the first gear 7; a second guide wheel 64 is fixedly mounted on the end of the first slider 63; a control assembly for cooperatively controlling the first gear 7 is provided at the bottom of the gantry 6;

[0046] Before the steel pipe is transported, the control component drives multiple first gears 7 to rotate, so that the first slider 63 slides along the first gear 7 and the fixed plate 62, so that the circumferential contour formed by the multiple second guide wheels 64 can adapt to the size of the steel pipe. Since an even number of wavy grooves are provided on the surface of the first gear 7, and the system components composed of the first slider 63 and the second guide wheels 64 are evenly staggered on both sides of the first gear 7, the steel pipe can be guided and supported evenly by the second guide wheels 64 during transportation, thereby reducing the size of the suspended section during steel pipe transportation and improving the stability and accuracy of steel pipe transportation.

[0047] See also Figure 8 and Figure 9 As shown, the control assembly includes a plurality of racks 72; the racks 72 are correspondingly arranged with the first gear 7 and are in meshing relationship; a slide 73 is fixedly connected to the bottom of the rack 72, and the slide 73 is slidably connected to the top of the bed 1; a screw 74 is threadedly connected to the inner wall of one of the slides 73; the screw 74 is rotatably connected to the gantry 6; a second motor 75 is provided on one side of the screw 74, and the output end of the second motor 75 is fixedly connected to the screw 74; a connecting rod 76 is fixedly connected between adjacent slides 73;

[0048] When the first gear 7 needs to be rotated and adjusted, the second motor 75 can be started to drive the screw 74 to rotate. The screw 74 can thread the slide 73 connected to it and make it slide along the bed 1. The slide 73 can be moved in coordination with the connecting rod 76, so the slide 73 can be linked to the rack 72 to move together and make the rack 72 and the first gear 7 engage, so as to realize the coordinated control of multiple first gears 7 and improve the convenience of operation when controlling all first gears 7.

[0049] See also Figure 8 As shown, the outer wall of the screw 74 is provided with a housing 8, and the housing 8 is fixedly connected to the inner wall of the gantry 6; a sliding groove is provided at the bottom of the housing 8, and the slide 73 is penetrated and slidably connected to the housing 8;

[0050] By providing the housing 8 , the housing 8 can provide closed protection for the screw 74 , thereby reducing debris, dust and other particulate impurities adhering to the inner wall groove of the screw 74 when the screw 74 is in the processing workshop, thereby extending the service life of the screw 74 .

[0051] See also Figure 1 and Figure 10 As shown, the fixing assembly includes a fixing base 95; the fixing base 95 is fixedly connected to the top of the bed body 1; a third motor 9 is fixedly connected to one side of the fixing base 95; the output end of the third motor 9 is fixedly connected to a second gear 91; a third gear 92 is meshed with one side of the second gear 91, and the second gear 91 and the third gear 92 are both rotatably connected to the fixing base 95; a plurality of wavy grooves are provided on the surface of the third gear 92, and the wavy grooves are slidably connected to a plurality of second sliders 93; a pressure plate 94 is fixedly connected to the end of the second slider 93; the second slider 93 is slidably connected to the fixing base 95;

[0052] After the steel pipe is slid out of the fixing seat 95 to a suitable length, the second gear 91 can be driven to rotate by starting the third motor 9, and the second gear 91 can mesh with the third gear 92 to rotate the third gear 92. The third gear 92 can drive multiple second sliders 93 to approach the outer wall of the steel pipe at the same time through the wavy groove and cooperate with the groove on the surface of the fixing seat 95 until the pressure plate 94 and the outer wall of the steel pipe are against each other, thereby achieving rapid fixation of the steel pipe. At the same time, the system components composed of the second sliders 93 and the pressure plate 94 here can be arranged with the above-mentioned guide components, that is, symmetrically staggered, to improve the stability when clamping the steel pipe.

[0053] See also Figure 3 As shown, a groove 1000 is formed on one side of the connecting seat 14; a plurality of counterweights 1001 are provided inside the groove 1000;

[0054] By providing the groove 1000 and the counterweight 1001, the weight on one side of the connecting seat 14 can be compensated so that the center of mass of the surface of the connecting seat 14 is coaxial with the output end of the cylinder 13, thereby reducing the lateral force on the axial end of the cylinder 13 when it is working, thereby improving the stability and service life of the cylinder 13 when it is working.

[0055] Working principle: The steel pipe is passed through the guide assembly, preheating assembly, and fixed assembly in sequence and transported. The steel pipe transportation power can be transported by radial power, which can be manual pushing or conveying by conveying rollers through friction. It is not specifically limited here. After the steel pipe slides out of the fixed assembly for a certain length, it can be fixed by the fixed assembly, and the cutting assembly is started to cut it. Specifically, the cylinder 13 starts and pushes the connecting seat 14 to make it move vertically along the vertical plate 12. A guide rod is provided between the connecting seat 14 and the vertical plate 12. The connecting seat 14 can bring the first motor 15 and the tool 16 on one side close to the steel pipe. During the process, the first motor 15 will start and drive the tool 16 to rotate, through The rotating cutter 16 cuts the steel pipe, and the cut steel pipe can fall into the relevant collection device through the chute on one side of the bed 1. The above is a mature existing technology, so the specific structure and principle involved are not repeated here. Before the steel pipe is cut, the cut section of the steel pipe will pass through the heating pipe 17. The air inlet pipe 18 on the top of the heating pipe 17 can be connected to the hot air flow supply equipment to pass the heated air flow through the air inlet pipe 18, the heating pipe 17, and the holes on the surface of the hollow tube 19 and then ejected from the holes on the surface of the heating plate 111 to dry heat the surface of the steel pipe and increase the temperature of the surface of the steel pipe before cutting. At the same time, for steel pipes of different sizes, the heating plate 111 can be squeezed by the hollow tube 19 under the extrusion of the steel pipe. And the cross plate 110 is expanded and the spring is in a stretched state, so that it can be adapted. It is also worth mentioning that the heating tube 17 should be made of low thermal conductivity material to reduce the impact of heat overflow on the spring. At the same time, the steel pipes involved in sports building materials are generally Q235B steel, so the preheating temperature here can be specifically around 100°C, which is within the working temperature range of the spring. Therefore, combined with the above description, the service life of the spring here does not need to consider the temperature effect; when the steel pipe size is large, the system components composed of the heating plate 111, the hollow tube 19, and the cross plate 110 will adaptively expand outward, and when the cross plate 110 moves, it can move with the side plate 2 and the sealing rod 22, and the end of the sealing rod 22 The end of the sealing rod 22 will slide into the interior of the heating tube 17. As the moving stroke of the sealing rod 22 increases, the gap between the end of the sealing rod 22 and the inner wall of the heating tube 17 will also increase, so that the gap between the sealing rod 22 and the heating tube 17 can also discharge the heated airflow, thereby expanding the flow range of the airflow and the heating area of ​​the steel tube. Through the above arrangement, when the steel tube size is small, the airflow can only be ejected from the surface of the heating plate 111. Since the total air pressure in the heating tube 17 remains unchanged, the airflow velocity can be accelerated, and the heat exchange between the airflow and the steel tube can be enhanced. In addition, since the end of the sealing rod 22 is chamfered, the gap here will slowly increase linearly, thereby slowly reducing the airflow velocity at the heating plate 111.By setting the first guide wheel 32, the first guide wheel 32 can be used to resist the outer wall of the steel pipe when the steel pipe and the heating plate 111 are in contact. On the one hand, the first guide wheel 32 can reduce the sliding friction between the steel pipe and the heating plate 111, thereby reducing the conveying resistance. On the other hand, the first guide wheel 32 can provide additional support for the steel pipe to ensure that there is a certain space between the holes on the surface of the heating plate 111 and the steel pipe, thereby reducing the obstruction of the steel pipe on the holes on the surface of the heating plate 111. At the same time, part of the airflow in the heating plate 111 can be ejected from the cavity 3 and guided by the rotating first guide wheel 32, and can be ejected from one side of the first guide wheel 32 to form a local jet, thereby reducing the obstruction of the first guide wheel 32 on the steel pipe surface when heating, thereby improving the uniformity of heating on the steel pipe surface. By setting the turbulent The airflow ejected from both sides of the first guide wheel 32 is weakly guided by the first guide wheel 32, and when the first guide wheel 32 rotates, it can drive the spoiler 4 to rotate together, and the spoiler 4 can disrupt the airflow here, so that the airflow ejected from the cavity 3 can form multiple jets under the disruptive effect of the spoiler 4 and heat the steel pipe from different angles to reduce the cold area on the surface of the steel pipe; when the elastic sheet 53 is working normally, it will apply pre-pressure to the elastic insulation cloth 5 and cause the elastic insulation cloth 5 and the elastic ring 52 to shrink, so the steel pipe can be pre-inserted between a pair of elastic rings 52, and the surface of the elastic ring 52 can be made of smooth material or provided with wear-resistant measures to reduce the resistance between the steel pipe and the elastic insulation cloth 5 and the elastic ring 52. The cloth 5 and the elastic ring 52 will seal the heating section of the steel pipe to reduce heat loss, improve the utilization rate of thermal energy of the device, and also improve the uniformity of heating the steel pipe; before the steel pipe is transported, the control component drives the multiple first gears 7 to rotate, so that the first slider 63 slides along the first gear 7 and the fixed plate 62, so that the circumferential profile formed by the multiple second guide wheels 64 can adapt to the size of the steel pipe. Since an even number of wavy grooves are provided on the surface of the first gear 7, and the system components composed of the first slider 63 and the second guide wheels 64 are evenly staggered on both sides of the first gear 7, the steel pipe can be uniformly guided and supported by the second guide wheels 64 during transportation, thereby reducing the size of the suspended section during transportation of the steel pipe and improving the transportation of the steel pipe. When the first gear 7 needs to be rotated and adjusted, the second motor 75 can be started to drive the screw 74 to rotate. The screw 74 can perform threaded transmission on the slide 73 connected to it and make it slide along the bed 1. The slide 73 can be moved in coordination with the connecting rod 76, so the slide 73 can be linked to the rack 72 to move together and make the rack 72 and the first gear 7 mesh, so as to achieve coordinated control of multiple first gears 7 and improve the convenience of operation when controlling all first gears 7; by providing a shell 8, the shell 8 can provide closed protection for the screw 74 to reduce the debris, dust and other particulate impurities attached to the inner wall groove of the screw 74 when the screw 74 is in the processing workshop, thereby extending the service life of the screw 74;After the steel pipe is slid out of the fixing seat 95 to a suitable length, the third motor 9 can be started to drive the second gear 91 to rotate. The second gear 91 can mesh with the third gear 92 to rotate the third gear 92. The third gear 92 can drive multiple second sliders 93 to approach the outer wall of the steel pipe at the same time through the wavy groove and cooperate with the groove on the surface of the fixing seat 95 until the pressure plate 94 and the outer wall of the steel pipe are abutted, thereby achieving rapid fixation of the steel pipe. At the same time, the system components composed of the second sliders 93 and the pressure plate 94 here can be arranged in the same way as the above-mentioned guide components, that is, symmetrically and staggeredly distributed to improve the stability when clamping the steel pipe; by providing the groove 1000 and the counterweight 1001, the weight on one side of the connecting seat 14 can be compensated so that the center of mass of the surface of the connecting seat 14 is coaxial with the output end of the cylinder 13. This can reduce the lateral force on the shaft end of the cylinder 13 when it is working, thereby improving the stability and service life of the cylinder 13 during operation.

[0056] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A sports building material steel pipe slitting device, comprising a bed (1), characterized in that: The top of the bed (1) is provided with a cutting assembly, a fixing assembly, a preheating assembly, and a guide assembly in sequence in the horizontal direction; The cutting assembly is used for cutting steel pipes and includes a vertical plate (12); the vertical plate (12) is fixedly mounted on the top of the bed (1); a cylinder (13) is fixedly connected to the top of the vertical plate (12); an output end of the cylinder (13) is fixedly connected to a connecting seat (14), and the connecting seat (14) and the inner wall of the vertical plate (12) are in sliding connection; a first motor (15) is fixedly mounted on one side of the connecting seat (14); a cutter (16) is fixedly connected to the output end of the first motor (15); The fixing assembly is used to clamp and fix the steel pipe when it is cut; The preheating assembly is used to heat the surface of the steel pipe before cutting, and includes a heating pipe (17); the heating pipe (17) is fixedly installed on the top of the bed (1); the top of the heating pipe (17) is connected to an air inlet pipe (18); a plurality of hollow pipes (19) are arranged through the surface of the heating pipe (17) and are slidably connected; one end of the hollow pipe (19) is fixedly connected to a transverse plate (110), and the other end is fixedly connected to a heating plate (111); the surface of the hollow pipe (19) located inside the heating pipe (17) is porous; the surface of the heating plate (111) is porous; a spring is installed between the inner wall of the transverse plate (110) and the outer wall of the heating pipe (17); The guide assembly is used to limit and guide the steel pipe during transportation; Side plates (2) are symmetrically fixed to both sides of the transverse plate (110); a plurality of sealing rods (22) are fixed to the surface of the side plates (2), and the ends of the sealing rods (22) are chamfered; the sealing rods (22) and the heating tubes (17) are interpenetrating and slidably connected; The surface of the heating plate (111) is provided with a plurality of cavities (3); the inner wall of the cavity (3) is rotatably connected to a first guide wheel (32); the inner wall of the cavity (3) is porous; A plurality of spoilers (4) are symmetrically fixedly connected to both sides of the first guide wheel (32), and the spoilers (4) are of an arc-shaped structure; Elastic heat-insulating cloths (5) are symmetrically fixed to both sides of the heating tube (17); elastic rings (52) are fixed to the ends of the elastic heat-insulating cloth (5); and a plurality of elastic sheets (53) are fixed to the outer wall of the elastic heat-insulating cloth (5).

2. The sports building material steel pipe slitting device according to claim 1, characterized in that: The guide assembly includes a plurality of gantries (6); a pair of fixed plates (62) are fixedly connected to the bottom of the gantry (6); a first gear (7) is rotatably connected between the pair of fixed plates (62); a plurality of wave-shaped sliding grooves are provided on the surface of the first gear (7); a plurality of first sliders (63) are slidably connected to the surface of the fixed plate (62); the first slider (63) and the wave-shaped sliding grooves on the surface of the first gear (7) are both slidably connected; a second guide wheel (64) is fixedly installed at the end of the first slider (63); and a control assembly for cooperatively controlling the first gear (7) is provided at the bottom of the gantry (6).

3. The sports building material steel pipe slitting device according to claim 2, characterized in that: The control assembly includes a plurality of racks (72); the racks (72) and the first gear (7) are correspondingly arranged and meshed with each other; a slide plate (73) is fixedly connected to the bottom of the rack (72), and the slide plate (73) is slidably connected to the top of the bed (1); a screw rod (74) is threadedly connected to the inner wall of one of the slide plates (73); the screw rod (74) is rotationally connected to the gantry (6); a second motor (75) is provided on one side of the screw rod (74), and the output end of the second motor (75) is fixedly connected to the screw rod (74); a connecting rod (76) is fixedly connected between adjacent slide plates (73).

4. The sports building material steel pipe slitting device according to claim 3, characterized in that: The outer wall of the screw rod (74) is provided with a housing (8), and the housing (8) is fixedly connected to the inner wall of the gantry (6); a sliding groove is provided at the bottom of the housing (8), and the slide plate (73) and the housing (8) are penetrated and slidably connected.

5. The sports building material steel pipe slitting device according to claim 4, characterized in that: The fixing assembly includes a fixing seat (95); the fixing seat (95) is fixedly connected to the top of the bed (1); a third motor (9) is fixedly connected to one side of the fixing seat (95); the output end of the third motor (9) is fixedly connected to a second gear (91); a third gear (92) is meshed with one side of the second gear (91), and the second gear (91) and the third gear (92) are both rotatably connected to the fixing seat (95); a plurality of wavy grooves are provided on the surface of the third gear (92), and the wavy grooves are slidably connected to a plurality of second sliders (93); a pressure plate (94) is fixedly connected to the end of the second slider (93); the second slider (93) and the fixing seat (95) are both slidably connected.

6. The sports building material steel pipe slitting device according to claim 5, characterized in that: A groove (1000) is provided on one side of the connecting seat (14); a plurality of counterweights (1001) are provided inside the groove (1000).

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