Manufacturing method and equipment for low-flow-resistance high-efficiency spiral finned tube

Abstract

The invention discloses a method and equipment for manufacturing a low-flow-resistance high-efficiency spiral finned tube, and belongs to the technical field of spiral finned tube production. The horizontal driving assembly is arranged between the two sets of supporting seats, the bottom of the moving seat is fixedly connected with a sliding block of the guide rail assembly, guide rails of the guide rail assembly are fixedly connected with the tops of the supporting seats, and the bottom of the moving seat is in threaded connection with the horizontal driving assembly through a threaded sleeve. The driving end of the first motor penetrates through the moving seat and then is fixedly connected with the electric chuck; a bottom plate is arranged on the other side wall, away from the movable seat, of the supporting seat; the front end and the rear end of the top of the bottom plate are fixedly connected with a guiding assembly used for guiding materials and a rolling assembly used for steel pipe compression joint respectively, and the bottom plate is fixedly connected with an arc-shaped guiding assembly used for arc-shaped guiding and a welding assembly used for laser welding at the left end and the right end of the rolling assembly respectively. Automatic forming of the spiral finned tube is achieved, and the end of a steel belt does not need to be manually welded to the steel tube.

Description

Technical Field

[0001] The invention relates to the technical field of spiral finned tube production, and in particular to a method and equipment for manufacturing low-flow-resistance, high-efficiency spiral finned tubes. Background Art

[0002] As a heat exchange element, spiral finned tubes work under high-temperature flue gas conditions for a long time. Spiral finned tubes are generally manufactured using welding equipment.

[0003] Chinese patent CN112958648A discloses a solid-state spinning spiral fin tube laser welding forming equipment, which includes a structural body, the structural body including a main machine, the main machine being provided with a dual-drive transmission trolley, the dual-drive transmission trolley being provided with a steel pipe clamp for clamping the steel pipe; a 3D speed differential rotary extrusion die for automatically forming three-dimensional spiral fins by extruding a rotating steel strip; a laser welding mechanism for welding the fins to the steel pipe; a fin shaping mechanism for eliminating cracks generated during the forming process and burrs on the fin surface under hot conditions; a tension control mechanism for controlling the reaction tension of the contact between the steel strip and the steel pipe; a starting die mechanism, the starting die mechanism including a steel strip starting die and a steel strip corrector; the fin tubes produced by the solid-state spinning spiral fin tube laser welding forming equipment of the present invention have high corrosion resistance, high wear resistance, very low contact thermal resistance and ultra-high heat exchange efficiency.

[0004] However, the above patent disclosure cannot automatically weld the ends of the steel strips and requires manual processing, which makes continuous production impossible.

[0005] Based on this, the present invention designs a method and equipment for manufacturing a spiral fin tube with low flow resistance and high efficiency to solve the above problems. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a method and equipment for manufacturing a spiral finned tube with low flow resistance and high efficiency.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A low-flow-resistance, high-efficiency spiral fin tube manufacturing device comprises a support base, a horizontal drive assembly, a guide rail assembly, a first motor, a moving base and an electric chuck;

[0009] The horizontal drive assembly is provided between two sets of support seats. The bottom of the moving seat is fixedly connected to the slider of the guide rail assembly. The guide rail of the guide rail assembly is fixedly connected to the top of the support seat. The bottom of the moving seat is threadedly connected to the horizontal drive assembly through a threaded sleeve. The first motor is fixedly installed on a side wall of the moving seat. The driving end of the first motor passes through the moving seat and is fixedly connected to the electric chuck.

[0010] The support base is provided with a bottom plate at the other side wall away from the moving base;

[0011] The front and rear ends of the bottom plate are respectively fixedly connected with a guide assembly for guiding materials and a roller assembly for crimping steel pipes. The left and right ends of the roller assembly are respectively fixedly connected with an arc guide assembly for arc guidance and a welding assembly for laser welding.

[0012] A support roller for supporting the steel pipe is fixedly connected to the right end of the top of the bottom plate;

[0013] The bottom plate is fixedly connected to a clamping cutting assembly for cutting the steel strip at the bottom of the guide end of the guide assembly;

[0014] A feeding assembly for conveying the steel strip is provided below the clamping cutting assembly, and the feeding assembly is fixedly connected to the bottom plate.

[0015] Furthermore, the guide assembly includes a rotating roller, a third connecting seat, a follower wheel and a second horizontal axis. The third connecting seat is fixedly installed at the middle end of the front top of the base plate, and the second horizontal axis is rotatably fixedly installed at the rear end of the third connecting seat. The follower wheel and the rotating roller are fixedly installed at the left and right ends of the second horizontal axis. An annular groove is provided at the outer edge of the follower wheel, and the inner wall of the annular groove is fitted and connected to the outer wall of the steel belt. The rotating roller is in fit contact with the steel pipe. The outer diameter of the rotating roller is one millimeter larger than the outer diameter of the follower wheel. When the annular groove is in fit contact with the steel belt, the steel belt is in fit contact with the steel pipe.

[0016] Furthermore, the rolling assembly includes a second cylinder, a first guide rod, a second connecting plate, a third connecting plate, a ball bearing, a first transverse axis and a first connecting seat. The first connecting seat is fixedly installed at the rear end of the top of the base plate, the second cylinder is fixedly installed on the rear side wall of the first connecting seat, the second cylinder driving end passes through the first connecting seat and is fixedly connected to the second connecting plate, the second connecting plate is fixedly connected to the side wall near the first connecting seat with the first guide rod, the first connecting seat is slidingly connected to the first guide rod through a sliding hole, two groups of third connecting plates are symmetrically fixedly installed on the end of the second connecting plate away from the first connecting seat, the end of the third connecting plate away from the second connecting plate is fixedly connected to the first transverse axis, the inner rings of multiple groups of ball bearings are fixedly connected to the first transverse axis, and the central axis of the second transverse axis and the symmetry line between the central axes of the two groups of first transverse axes are at the same height.

[0017] Furthermore, the arc guide assembly includes a first cylinder, a first connecting plate, an arc sleeve and an arc guide plate. The first cylinder is fixedly installed on the rear side of the top of the base plate and is located on the left side of the first connecting seat. The first connecting plate is fixedly installed on the output end of the first cylinder. The top of the first connecting plate is fixedly connected to the arc sleeve. The end of the arc sleeve away from the first connecting plate is fixedly connected to the arc guide plate. When the arc sleeve is located above the pipeline, the arc guide plate is in a vertical state, and the end of the arc guide plate away from the arc sleeve is fitted and slidably connected with the inner end of the annular groove. When the arc sleeve is located above the pipeline and the steel belt is in fit contact with the arc guide plate, the bottom of the steel belt is in fit contact with the pipeline. The distance between the arc part of the arc sleeve close to the pipeline and the pipeline is two centimeters. When the arc sleeve is located above the pipeline, the arc sleeve and the pipeline are concentrically arranged.

[0018] Furthermore, the clamping cutting assembly includes a clamping assembly and a cutting assembly. The clamping assembly is fixedly installed on the top of the base plate, and the clamping assembly is located below the follower wheel. The cutting assembly is fixedly installed on a group of clamping ends of the clamping assembly. The cutting assembly and the two groups of clamping ends of the clamping assembly cooperate to achieve cutting.

[0019] Furthermore, the clamping assembly includes a pressure plate and a second symmetrical linear module, the second symmetrical linear module is fixedly installed on the top of the base plate, both end driving ends of the second symmetrical linear module are fixedly connected to the pressure plate, and the pressure plate is located on both sides of the steel belt, and one group of pressure plates is fixedly connected to the cutting assembly.

[0020] Furthermore, the cutting assembly includes a fifth connecting plate, a fourth cylinder and a cutter. The fifth connecting plate is fixedly mounted on the outer wall of a group of pressure plates, the fourth cylinder is fixedly mounted on the outer wall of the fifth connecting plate, and the cutter is fixedly mounted on the driving end of the fourth cylinder. Both groups of pressure plates are provided with horizontal holes for providing space for the cutter to move.

[0021] Furthermore, the feeding assembly includes a guide wheel, a fourth connecting plate, a clamping drive assembly and a movable material guide assembly. The clamping drive assembly is fixedly installed at the bottom of the base plate, the movable material guide assembly and the base plate are fixedly connected, and the guide end of the movable material guide assembly is located below the follower wheel and the pressure plate, and the guide end of the movable material guide assembly is located above the clamping drive assembly. The fourth connecting plate is fixedly installed on the clamping drive assembly, and the guide wheel is rotatably installed at the lower end of the side wall of the fourth connecting plate. The steel belt is slidably connected to the outer side of the fourth connecting plate, the clamping end of the clamping drive assembly and the inner wall of the guide end of the movable material guide assembly.

[0022] A method for manufacturing a low-flow-resistance, high-efficiency spiral finned tube manufacturing device comprises the following steps:

[0023] Step 1: When a group of spiral finned tubes is quickly finished, the horizontal drive assembly and the first motor are paused, the feeding assembly clamps the steel strip, the clamping cutting assembly cuts it, and the steel tube continues to rotate and move to continue forming;

[0024] Step 2: After the steel pipe passes through the support roller, it is connected to the electric chuck. The electric chuck clamps the pipe, and the roller pressing assembly and guide assembly limit the side wall of the pipe;

[0025] Step 3: The arc guide assembly rotates to the top of the steel pipe, the feeding assembly drives the steel belt to move upward into the guide assembly, the feeding assembly drives the steel belt to move, the steel belt moves through the guide assembly into the arc guide assembly, the end of the steel belt moves to the top of the steel pipe, and the welding assembly performs laser welding on the contact between the steel belt and the steel pipe;

[0026] Step 4: The first motor drives the electric chuck to rotate, and the electric chuck drives the steel pipe to rotate. The feeding assembly drives the steel belt to move at the same time, and the welding assembly welds the steel belt synchronously. After the steel belt is wrapped around the steel pipe for three-quarters of a circle, the arc guide assembly rotates outward and separates from the steel belt;

[0027] Step 5: While the first motor continues to rotate, the horizontal drive assembly drives the first motor to move along the guide rail assembly, so that the electric chuck rotates and moves at the same time, and the welding assembly performs laser spiral welding. After three spiral welds are made on the steel pipe, the feeding assembly stops driving the steel belt, and the horizontal drive assembly, the first motor, the rolling assembly and the guide assembly cooperate with the rotating steel pipe to drive the steel belt to move automatically. The rolling assembly, the welding assembly and the guide assembly cooperate to continue spiral welding.

[0028] Step 6: Repeat steps 1-5.

[0029] The present invention has the following technical effects:

[0030] The present invention waits for a group of spiral finned tubes to finish quickly, the horizontal drive assembly and the first motor are paused, the feeding assembly clamps the steel strip, the clamping cutting assembly cuts it, the steel pipe continues to rotate and move to continue forming, and the spiral finned tube is taken away after forming, and the steel pipe is connected with the electric chuck after passing the supporting roller, the electric chuck clamps the pipe, the rolling assembly and the guide assembly limit the side wall of the pipe, the arc guide assembly rotates to above the steel pipe, the feeding assembly drives the steel strip to move upward into the guide assembly, the feeding assembly rolls and drives the steel strip to move, the steel strip moves into the arc guide assembly through the guide assembly, the end of the steel strip moves to the top of the steel pipe, and the welding assembly laser welds the contact between the steel strip and the steel pipe, the first motor drives the electric chuck to rotate, the electric chuck drives the steel pipe to rotate, the feeding assembly drives the steel strip to move at the same time, the welding assembly synchronously welds the steel strip, and the steel strip is wrapped around the steel pipe. After three-quarters of a circle, the arc guide assembly rotates outward and separates from the steel belt. While the first motor continues to rotate, the horizontal drive assembly drives the first motor to move along the guide rail assembly, so that the electric chuck rotates and moves at the same time, and the welding assembly performs laser spiral welding. After three circles of spiral welding on the steel pipe, the feeding assembly stops driving the steel belt, and the horizontal drive assembly, the first motor, the rolling assembly and the guide assembly cooperate with the rotating steel pipe to drive the steel belt to move automatically. The rolling assembly, the welding assembly and the guide assembly cooperate to continue spiral welding to realize automatic forming of the spiral finned tube. There is no need to manually weld the end of the steel belt to the steel pipe. The spiral finned tube produced by welding has high heat exchange efficiency, and the spiral arc on the outside of the spiral finned tube helps to reduce fluid impact resistance. After three circles of spiral welding on the steel pipe, the feeding assembly stops driving the steel belt, which ensures the stability of the connection between the steel belt and the steel pipe, which is conducive to the steel belt following movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0032] Figure 1 A three-dimensional diagram of a low-flow-resistance, high-efficiency spiral fin tube manufacturing device according to the present invention;

[0033] Figure 2 The bottom plate and its connection structure when the pipeline is installed are three-dimensional. Figure 1 ;

[0034] Figure 3 This is a front view of the base plate and its connection structure when the pipeline is installed in the present invention;

[0035] Figure 4 The bottom plate and its connection structure when the pipeline is installed are three-dimensional. Figure 2 ;

[0036] Figure 5 The bottom plate and its connection structure when the pipeline is installed are three-dimensional. Figure 3 ;

[0037] Figure 6 The bottom plate and its connection structure when the pipeline is installed are three-dimensional. Figure 4 ;

[0038] Figure 7 The bottom plate and its connection structure when the pipeline is installed are three-dimensional. Figure 5 ;

[0039] Figure 8 To follow Figure 3 AA direction cross-sectional view;

[0040] Figure 9 This is a three-dimensional diagram of the base plate and its connection structure when the pipeline of the present invention is not installed;

[0041] Figure 10 for Figure 4 Enlarged view of point B in the middle.

[0042] The numbers in the figure represent:

[0043] 1. Support Base 2. Horizontal Drive Assembly 3. Guide Rail Assembly 4. First Motor 5. Moving Base 6. Electric Chuck 7. Arc Guide Assembly 71. First Cylinder 72. First Connecting Plate 73. Arc Sleeve 74. Arc Guide Plate 8. Roller Assembly 81. Second Cylinder 82. First Guide Rod 83. Second Connecting Plate 84. Third Connecting Plate 85. Ball Bearing 86. First Transverse Axis 87. First Connecting Base 9. Welding Assembly 91. Second Connecting Base 92. Linear Module 93. Laser Welding Gun 10. Base Plate 11. Guide Assembly 111. Rotating Roller 112. Annular Groove 113. Third Connecting Base 114. Driving wheel 115. Second horizontal axis 12. Feeding assembly 121. Guide wheel 122. Fourth connecting plate 123. Mounting plate 124. First symmetrical linear module 125. Slider 126. Guide rail 127. Rotating wheel 128. Second motor 129. Third cylinder 1210. Guide sleeve 1211. Arc groove 1212. Guide straight plate 1213. Horizontal connecting plate 1214. First straight groove 1215. Second straight groove 13. Clamping cutting assembly 131. Horizontal hole 132. Pressing plate 133. Second symmetrical linear module 134. Fifth connecting plate 135. Fourth cylinder 136. Cutter 14. Support roller. DETAILED DESCRIPTION

[0044] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. 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 any creative efforts shall fall within the scope of protection of the present invention.

[0045] The present invention will be further described below with reference to the embodiments.

[0046] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0047] Example 1: Please refer to Figures 1-10 , a low flow resistance and high efficiency spiral fin tube manufacturing equipment, including a support base 1, a horizontal drive assembly 2, a guide rail assembly 3, a first motor 4, a moving base 5 and an electric chuck 6;

[0048] The horizontal drive assembly 2 is provided between two groups of support seats 1. The bottom of the movable seat 5 is fixedly connected to the slider of the guide rail assembly 3. The guide rail of the guide rail assembly 3 is fixedly connected to the top of the support seat 1. The bottom of the movable seat 5 is threadedly connected to the horizontal drive assembly 2 through a threaded sleeve. The first motor 4 is fixedly mounted on a side wall of the movable seat 5. The driving end of the first motor 4 passes through the movable seat 5 and is fixedly connected to the electric chuck 6.

[0049] The horizontal drive assembly 2 includes a motor and a threaded rod, and the threaded rod is fixedly connected to the output end of the motor, and the bottom of the movable seat 5 is threadedly connected to the threaded rod through a threaded sleeve;

[0050] The support base 1 is provided with a bottom plate 10 at the other side wall away from the movable base 5;

[0051] The front and rear ends of the top of the bottom plate 10 are respectively fixedly connected with a guide assembly 11 for guiding materials and a roller pressing assembly 8 for steel pipe crimping. The left and right ends of the roller pressing assembly 8 of the bottom plate 10 are respectively fixedly connected with an arc guide assembly 7 for arc guidance and a welding assembly 9 for laser welding.

[0052] A support roller 14 for supporting the steel pipe is fixedly connected to the right end of the top of the bottom plate 10;

[0053] The bottom plate 10 is fixedly connected to a clamping cutting assembly 13 for cutting the steel strip at the bottom of the guide end of the guide assembly 11;

[0054] A feeding assembly 12 for conveying the steel strip is provided below the clamping cutting assembly 13, and the feeding assembly 12 is fixedly connected to the bottom plate 10;

[0055] After the spiral fin tubes are formed, the horizontal drive assembly 2 and the first motor 4 are suspended, the feeding assembly 12 clamps the steel strip, the clamping cutting assembly 13 cuts it, and the steel pipe continues to rotate and move to continue forming. After forming, the spiral fin tube is taken away, and the steel pipe is connected with the electric chuck 6 after passing the support roller 14. The electric chuck 6 clamps the pipe, and the rolling assembly 8 and the guide assembly 11 limit the side wall of the pipe. The arc guide assembly 7 rotates to the top of the steel pipe, and the feeding assembly 12 drives the steel strip to move upward into the guide assembly 11. The feeding assembly 12 rolls and drives the steel strip to move. The steel strip moves into the arc guide assembly 7 through the guide assembly 11, and the end of the steel strip moves to the top of the steel pipe. The welding assembly 9 laser welds the contact between the steel strip and the steel pipe. The first motor 4 drives the electric chuck 6 to rotate, and the electric chuck 6 drives the steel pipe to rotate. The feeding assembly 12 drives the steel strip to move at the same time, and the welding assembly 9 welds the steel strips synchronously. After the steel belt has made three-quarters of a circle, the arc-shaped guide assembly 7 rotates outward and separates from the steel belt. While the first motor 4 continues to rotate, the horizontal drive assembly 2 drives the first motor 4 to move along the guide rail assembly 3, so that the electric chuck 6 rotates and moves at the same time, and the welding assembly 9 performs laser spiral welding. After three circles of spiral welding on the steel pipe, the feeding assembly 12 stops driving the steel belt, and the horizontal drive assembly 2, the first motor 4, the rolling assembly 8 and the guide assembly 11 cooperate with the rotating steel pipe to drive the steel belt to move automatically. The rolling assembly 8, the welding assembly 9 and the guide assembly 11 cooperate to continue spiral welding to realize automatic forming of the spiral finned tube. There is no need to manually weld the end of the steel belt to the steel pipe. The spiral finned tube produced by welding has high heat exchange efficiency, and the spiral arc at the outer side of the spiral finned tube helps to reduce fluid impact resistance. At the same time, after three circles of spiral welding on the steel pipe, the feeding assembly 12 stops driving the steel belt, which ensures the stability of the connection between the steel belt and the steel pipe, which is conducive to the following movement of the steel belt.

[0056] The guide assembly 11 includes a rotating roller 111, a third connecting seat 113, a follower wheel 114 and a second horizontal axis 115. The third connecting seat 113 is fixedly installed at the middle end of the top front side of the base plate 10, and the second horizontal axis 115 is rotatably fixedly installed at the rear end of the third connecting seat 113. The follower wheel 114 and the rotating roller 111 are fixedly installed at the left and right ends of the second horizontal axis 115. An annular groove 112 is provided at the outer edge of the follower wheel 114, and the inner wall of the annular groove 112 is in close contact with the outer wall of the steel belt. The rotating roller 111 is in close contact with the steel pipe. The outer diameter of the rotating roller 111 is one millimeter larger than the outer diameter of the follower wheel 114. When the annular groove 112 is in close contact with the steel belt, the steel belt is in close contact with the steel pipe.

[0057] When the steel pipe rotates, the steel pipe drives the rotating roller 111 to rotate, the rotating roller 111 drives the second horizontal shaft 115 to rotate, the second horizontal shaft 115 drives the follower wheel 114 to rotate, the follower wheel 114 drives the annular groove 112 to rotate, and the annular groove 112 and the follower wheel 114 rotate in coordination to guide the steel belt.

[0058] The rolling assembly 8 includes a second cylinder 81, a first guide rod 82, a second connecting plate 83, a third connecting plate 84, a ball bearing 85, a first transverse shaft 86 and a first connecting seat 87. The first connecting seat 87 is fixedly mounted on the rear end of the top of the base plate 10, and the second cylinder 81 is fixedly mounted on the rear side wall of the first connecting seat 87. The driving end of the second cylinder 81 passes through the first connecting seat 87 and is fixedly connected to the second connecting plate 83. The second connecting plate 83 is fixedly connected to the first guide rod 82 near the side wall of the first connecting seat 87. The first connecting seat 87 is slidably connected to the first guide rod 82 through a sliding hole. Two groups of third connecting plates 84 are symmetrically fixedly mounted on the end of the second connecting plate 83 away from the first connecting seat 87. The end of the third connecting plate 84 away from the second connecting plate 83 is fixedly connected to the first transverse shaft 86. The inner rings of multiple groups of ball bearings 85 are fixedly connected to the first transverse shaft 86. The central axis of the second transverse shaft 115 and the symmetry line between the central axes of the two groups of first transverse shafts 86 are at the same height.

[0059] The pipeline moves on the supporting roller 14, and the second cylinder 81 of the rolling assembly 8 drives the second connecting plate 83 to move toward the steel pipe. The first guide rod 82 guides the second connecting plate 83, and the second connecting plate 83 drives the third connecting plate 84 to move. The third connecting plate 84 drives the first horizontal axis 86 to move, and the first horizontal axis 86 drives the ball bearing 85 to move until it contacts the pipeline. The two groups of ball bearings 85 connected to the first horizontal axis 86 and the rotating roller 111 cooperate to make three-point contact with the pipeline to limit the side wall of the pipeline and prevent the pipeline from jumping at the welding position.

[0060] The arc guide assembly 7 includes a first cylinder 71, a first connecting plate 72, an arc sleeve 73 and an arc guide plate 74. The first cylinder 71 is fixedly mounted on the rear side of the top of the base plate 10 and is located on the left side of the first connecting seat 87. The first connecting plate 72 is fixedly mounted on the output end of the first cylinder 71. The top of the first connecting plate 72 is fixedly connected to the arc sleeve 73. The end of the arc sleeve 73 away from the first connecting plate 72 is fixedly connected to the arc guide plate 74. When the arc sleeve 73 is located above the pipeline, the arc guide plate 74 is in a vertical state, and the end of the arc guide plate 74 away from the arc sleeve 73 is fitted and slidably connected to the inner end of the annular groove 112. When the arc sleeve 73 is located above the pipeline and the steel belt is in contact with the arc guide plate 74, the bottom of the steel belt is in contact with the pipeline. The distance between the arc part of the arc sleeve 73 close to the pipeline and the pipeline is two centimeters. When the arc sleeve 73 is located above the pipeline, the arc sleeve 73 and the pipeline are concentrically arranged.

[0061] The ball bearing 85 and the rotating roller 111 limit the side wall of the pipe, the first cylinder 71 of the arc guide assembly 7 drives the first connecting plate 72 to rotate, the first connecting plate 72 drives the arc sleeve 73 to rotate above the steel pipe, and the arc guide plate 74 is in contact with the annular groove 112, the feeding assembly 12 drives the steel belt to move upward into the annular groove 112, the feeding assembly 12 drives the steel belt to move, and the steel belt moves into the arc sleeve 73 under the guidance of the annular groove 112 and the arc guide plate 74, and the end of the steel belt moves to the top of the steel pipe. The welding assembly 9 is connected to the steel belt. The belt and the steel pipe are laser welded at their contact point, the first motor 4 drives the electric chuck 6 to rotate, the electric chuck 6 drives the steel pipe to rotate, the feeding assembly 12 drives the steel belt to move at the same time, and the welding assembly 9 welds the steel belts synchronously. After the steel belt is wrapped around the steel pipe for three-quarters of a circle, the first cylinder 71 of the arc guide assembly 7 drives the first connecting plate 72 to rotate outward, and the first connecting plate 72 drives the arc sleeve 73 to rotate outward and separate from the steel belt, making it convenient to guide the steel belt in an annular shape to the outer wall of the steel pipe, and making it convenient for the welding assembly 9 to weld the end of the steel belt in an annular shape to the steel pipe, without the need for manual welding of the end.

[0062] The welding assembly 9 includes a second connecting seat 91, a linear module 92 and a laser welding gun 93. The second connecting seat 91 is fixedly installed on the top rear side of the base plate 10, and the second connecting seat 91 is located on the right side of the first connecting seat 87. The linear module 92 is fixedly installed on the front side wall of the second connecting seat 91. The laser welding gun 93 is fixedly installed on the second connecting seat 91, and the laser irradiation end of the second connecting seat 91 is aligned with the required welding position of the pipe and the steel belt.

[0063] After a group of spiral finned tubes are formed, the linear module 92 of the welding assembly 9 drives the laser welding gun 93 to move upward. After the steel pipe is loaded, the linear module 92 drives the laser welding gun 93 to move downward to a set height, and the laser welding gun 93 then performs welding.

[0064] The clamping cutting assembly 13 includes a clamping assembly and a cutting assembly. The clamping assembly is fixedly mounted on the top of the base plate 10 and is located below the follower wheel 114. The cutting assembly is fixedly mounted on a set of clamping ends of the clamping assembly. The cutting assembly and the two sets of clamping ends of the clamping assembly cooperate to achieve cutting.

[0065] The clamping assembly includes a pressure plate 132 and a second symmetrical linear module 133. The second symmetrical linear module 133 is fixedly installed on the top of the base plate 10. The driving ends of both ends of the second symmetrical linear module 133 are fixedly connected to the pressure plate 132, and the pressure plate 132 is located on both sides of the steel belt. A group of pressure plates 132 is fixedly connected to the cutting assembly.

[0066] The cutting assembly includes a fifth connecting plate 134, a fourth cylinder 135 and a cutter 136. The fifth connecting plate 134 is fixedly mounted on the outer wall of a group of pressure plates 132. The fourth cylinder 135 is fixedly mounted on the outer wall of the fifth connecting plate 134. The cutter 136 is fixedly mounted on the driving end of the fourth cylinder 135. Both groups of pressure plates 132 are provided with a horizontal hole 131 for providing space for the cutter 136 to move.

[0067] When a group of spiral finned tubes is quickly finished, the horizontal drive assembly 2 and the first motor 4 are paused, the feeding assembly 12 clamps the steel strip, and the second symmetrical linear module 133 of the clamping assembly of the clamping cutting assembly 13 drives the pressure plate 132 to move toward each other, and the pressure plate 132 moves to contact with the steel strip to clamp the steel strip, and the fourth cylinder 135 of the cutting assembly drives the cutter 136 to move, and the cutter 136 cuts the steel strip after passing through the two groups of horizontal holes 131, and the horizontal drive assembly 2 and the first motor 4 continue to drive the steel pipe to continue rotating and moving to continue forming.

[0068] After cutting, the fourth cylinder 135 drives the cutter 136 outward, and the second symmetrical linear module 133 drives the pressing plate 132 to move outward, and the pressing plate 132 is separated from the steel strip.

[0069] The feeding assembly 12 includes a guide wheel 121, a fourth connecting plate 122, a clamping drive assembly and a movable material guiding assembly. The clamping drive assembly is fixedly installed at the bottom of the base plate 10, the movable material guiding assembly and the base plate 10 are fixedly connected, and the guiding end of the movable material guiding assembly is located below the follower wheel 114 and the pressure plate 132, and the guiding end of the movable material guiding assembly is located above the clamping drive assembly. The fourth connecting plate 122 is fixedly installed on the clamping drive assembly, and the guide wheel 121 is rotatably installed at the lower end of the side wall of the fourth connecting plate 122. The steel belt is slidably connected to the outer side of the fourth connecting plate 122, the clamping end of the clamping drive assembly and the inner wall of the guiding end of the movable material guiding assembly.

[0070] The clamping drive assembly includes a mounting plate 123, a first symmetrical linear module 124, a slider 125, a guide rail 126, a rotating wheel 127 and a second motor 128. The mounting plate 123 is fixedly mounted on the bottom of the base plate 10, the first symmetrical linear module 124 is fixedly mounted on the inner bottom of the mounting plate 123, the side walls of the mounting frame of the two groups of rotating wheels 127 are respectively fixedly connected to the two groups of driving ends of the first symmetrical linear module 124, the bottom of the mounting frame of the rotating wheel 127 is fixedly connected to the slider 125, the slider 125 is limitedly slidably connected to the guide rail 126, and the guide rail 126 is fixedly connected to the inner bottom of the mounting plate 123, the second motor 128 is fixedly mounted on the mounting frame of a group of rotating wheels 127, and the driving end of the second motor 128 is fixedly connected to the roller of a group of rotating wheels 127, and the mounting plate 123 is fixedly connected to the movable material guiding assembly.

[0071] The fourth connecting plate 122 is fixedly mounted on the bottom of the mounting plate 123. A second straight groove 1215 is formed in the bottom of the mounting plate 123. The steel belt guided by the fourth connecting plate 122 moves in the second straight groove 1215.

[0072] The movable material guiding assembly includes a third cylinder 129, a guide sleeve 1210, a guide straight plate 1212 and a transverse connecting plate 1213. The third cylinder 129 is fixedly mounted on the bottom of the base plate 10. The transverse connecting plate 1213 is fixedly mounted on the driving end of the third cylinder 129. The guide sleeve 1210 is fixedly mounted on the side wall of the transverse connecting plate 1213. An arcuate groove 1211 is provided on the upper end of the guide sleeve 1210, and the end of the arcuate groove 1211 close to the third connecting seat 113 is fixedly connected to the guide straight plate 1212. The base plate 10 is provided with a first straight groove 1214. When the guide sleeve 1210 is at the uppermost end, the guide straight plate 1212 is in contact with the bottom of the follower wheel 114, the top of the guide straight plate 1212 is in contact with the inner end of the annular groove 112, and the top of the steel belt end connected to the rotating wheel 127 is higher than the bottom of the guide sleeve 1210.

[0073] After a group of spiral finned tubes are quickly finished, the horizontal drive assembly 2 and the first motor 4 are paused, and the third cylinder 129 of the movable guide assembly of the feeding assembly 12 drives the horizontal connecting plate 1213 to move downward, and the horizontal connecting plate 1213 drives the guide sleeve 1210 to move downward, and the top of the guide sleeve 1210 and the guide straight plate 1212 are lower than the bottom of the pressure plate 132, and the first symmetrical linear module 124 of the clamping drive assembly drives the rotating wheel 127 to move toward each other, and the slider 125 and the guide rail 126 cooperate to guide the rotating wheel 127, and the roller of the rotating wheel 127 contacts the steel belt, and the rollers of the two groups of rotating wheels 127 clamp the steel belt; the clamping cutting assembly 13 cuts, and then the fourth cylinder 135 drives the cutter 136 to the outer end, and the second symmetrical straight The line module 133 drives the pressure plate 132 to move outward, and the pressure plate 132 is separated from the steel belt. The horizontal drive component 2, the first motor 4, the rolling component 8, the welding component 9 and the guide component 11 cooperate to drive the steel pipe to continue to rotate and move to continue forming. After forming, the spiral finned tube is taken away, and the steel pipe is connected to the electric chuck 6 after passing through the support roller 14. The electric chuck 6 clamps the pipe, and the rolling component 8 and the guide component 11 limit the side wall of the pipe. The arc sleeve 73 rotates to the top of the steel pipe, and the third cylinder 129 of the movable guide assembly of the feeding assembly 12 drives the horizontal connecting plate 1213 to move upward. The horizontal connecting plate 1213 drives the guide straight plate 1212 to move upward, and the arc groove 1211 is in contact with the follower wheel 114. The second motor 128 drives The rollers of one set of rotating wheels 127 are driven to rotate, and the rollers of another set of rotating wheels 127 cooperate to drive the steel belt to move upward. The steel belt moves along the guide sleeve 1210 and the guide straight plate 1212 to the follower wheel 114, and the steel belt moves to the arc guide plate 74 and the arc sleeve 73 through the follower wheel 114 and the annular groove 112. The end of the steel belt moves to the top of the steel pipe through the arc sleeve 73, and the welding assembly 9 laser welds the contact between the steel belt and the steel pipe. The first motor 4 drives the electric chuck 6 to rotate, and the electric chuck 6 drives the steel pipe to rotate. At the same time, the second motor 128 drives the rollers of one set of rotating wheels 127 to rotate, and the rollers of another set of rotating wheels 127 cooperate to drive the steel belt to move upward. After the steel belt is wrapped around the steel pipe for three-quarters of a circle, the arc guide assembly 7 rotates outward to contact the steel pipe. The belt is separated, and the first motor 4 continues to rotate while the horizontal drive assembly 2 drives the first motor 4 to move along the guide rail assembly 3, so that the electric chuck 6 rotates and moves at the same time, and the welding assembly 9 performs laser spiral welding. After three circles of spiral welding on the steel pipe, the third cylinder 129 pauses, and the first symmetrical linear module 124 drives the rotating wheel 127 to move outward. With the cooperation of the slider 125 and the guide rail 126, the roller of the rotating wheel 127 moves outward until it is separated from the steel, and the roller of the rotating wheel 127 stops driving the steel belt. The horizontal drive assembly 2, the first motor 4, the rolling assembly 8 and the guide assembly 11 cooperate with the rotating steel pipe to drive the steel belt to move automatically, and the welding assembly 9 continues spiral welding to realize automatic forming of the spiral finned tube, without the need to manually weld the end of the steel belt to the steel pipe.

[0074] Example 2: Please refer to Figures 1-10 As a preferred embodiment of the present invention, in order to better achieve the purpose of the present invention, the present invention also provides a method for manufacturing a low flow resistance and high efficiency spiral finned tube manufacturing device, comprising the following steps:

[0075] Step 1: When a group of spiral finned tubes is quickly finished, the horizontal drive assembly 2 and the first motor 4 are paused, the feeding assembly 12 clamps the steel strip, the clamping cutting assembly 13 cuts it, and the steel tube continues to rotate and move to continue forming;

[0076] Step 2: The steel pipe passes through the support roller 14 and is connected to the electric chuck 6. The electric chuck 6 clamps the pipe, and the rolling assembly 8 and the guide assembly 11 limit the side wall of the pipe;

[0077] Step 3: The arc guide assembly 7 rotates to the top of the steel pipe, and the feeding assembly 12 drives the steel belt to move upward into the guide assembly 11. The feeding assembly 12 drives the steel belt to move by rolling. The steel belt moves through the guide assembly 11 into the arc guide assembly 7. The end of the steel belt moves to the top of the steel pipe, and the welding assembly 9 performs laser welding on the contact point between the steel belt and the steel pipe;

[0078] Step 4: The first motor 4 drives the electric chuck 6 to rotate, and the electric chuck 6 drives the steel pipe to rotate. The feeding assembly 12 drives the steel belt to move with it, and the welding assembly 9 welds the steel belt synchronously. After the steel belt is wrapped around the steel pipe for three-quarters of a circle, the arc guide assembly 7 rotates outward and separates from the steel belt;

[0079] Step 5: While the first motor 4 continues to rotate, the horizontal drive assembly 2 drives the first motor 4 to move along the guide rail assembly 3, so that the electric chuck 6 rotates and moves at the same time, and the welding assembly 9 performs laser spiral welding. After three spiral welds are made on the steel pipe, the feeding assembly 12 stops driving the steel strip, and the horizontal drive assembly 2, the first motor 4, the rolling assembly 8 and the guide assembly 11 cooperate with the rotating steel pipe to drive the steel strip to move automatically, and the rolling assembly 8, the welding assembly 9 and the guide assembly 11 cooperate to continue spiral welding;

[0080] Step 6: Repeat steps 1-5.

[0081] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A low-flow-resistance, high-efficiency spiral fin tube manufacturing device, comprising a support base (1), a horizontal drive assembly (2), a guide rail assembly (3), a first motor (4), a moving base (5) and an electric chuck (6), characterized in that: The horizontal drive assembly (2) is provided between two groups of support seats (1), the bottom of the moving seat (5) is fixedly connected to the slider of the guide rail assembly (3), the guide rail of the guide rail assembly (3) is fixedly connected to the top of the support seat (1), the bottom of the moving seat (5) is threadedly connected to the horizontal drive assembly (2) through a threaded sleeve, the first motor (4) is fixedly installed on a side wall of the moving seat (5), and the driving end of the first motor (4) passes through the moving seat (5) and is fixedly connected to the electric chuck (6); The support seat (1) is provided with a bottom plate (10) at the other side wall away from the movable seat (5); A guide assembly (11) for guiding materials and a roller pressing assembly (8) for crimping steel pipes are fixedly connected at the front and rear ends of the top of the bottom plate (10), and an arc guide assembly (7) for arc guidance and a welding assembly (9) for laser welding are fixedly connected at the left and right ends of the roller pressing assembly (8). A support roller (14) for supporting the steel pipe is fixedly connected to the right end of the top of the bottom plate (10); The bottom plate (10) is fixedly connected to a clamping cutting assembly (13) for cutting the steel strip at the bottom of the guide end of the guide assembly (11); A feeding assembly (12) for conveying the steel strip is provided below the clamping cutting assembly (13), and the feeding assembly (12) is fixedly connected to the bottom plate (10).

2. The low flow resistance and high efficiency spiral fin tube manufacturing equipment according to claim 1 is characterized in that: The guide assembly (11) comprises a rotating roller (111), a third connecting seat (113), a follower wheel (114) and a second transverse axis (115). The third connecting seat (113) is fixedly mounted at the middle end of the front side of the top of the bottom plate (10). The second transverse axis (115) is rotatably fixedly mounted at the rear end of the third connecting seat (113). The follower wheel (114) and the rotating roller (111) are fixedly mounted at the left and right ends of the second transverse axis (115). An annular groove (112) is provided at the outer edge of the follower wheel (114), and the inner wall of the annular groove (112) is in close contact with the outer wall of the steel belt. The rotating roller (111) is in close contact with the steel pipe. The outer diameter of the rotating roller (111) is one millimeter larger than the outer diameter of the follower wheel (114). When the annular groove (112) is in close contact with the steel belt, the steel belt is in close contact with the steel pipe.

3. The low flow resistance and high efficiency spiral fin tube manufacturing equipment according to claim 2, characterized in that: The rolling assembly (8) includes a second cylinder (81), a first guide rod (82), a second connecting plate (83), a third connecting plate (84), a ball bearing (85), a first transverse axis (86) and a first connecting seat (87). The first connecting seat (87) is fixedly mounted on the top rear end of the bottom plate (10). The second cylinder (81) is fixedly mounted on the rear side wall of the first connecting seat (87). The driving end of the second cylinder (81) passes through the first connecting seat (87) and is fixedly connected to the second connecting plate (83). The second connecting plate (83) is fixed near the side wall of the first connecting seat (87). A first guide rod (82) is connected, a first connecting seat (87) is slidably connected to the first guide rod (82) through a sliding hole, two groups of third connecting plates (84) are fixedly installed on the end of the second connecting plate (83) away from the first connecting seat (87) symmetrically, the end of the third connecting plate (84) away from the second connecting plate (83) is fixedly connected to the first transverse axis (86), the inner rings of the multiple groups of ball bearings (85) are fixedly connected to the first transverse axis (86), and the symmetry line between the central axis of the second transverse axis (115) and the central axis of the two groups of first transverse axes (86) is at the same height.

4. The low flow resistance and high efficiency spiral fin tube manufacturing equipment according to claim 3 is characterized in that: The arc guide assembly (7) comprises a first cylinder (71), a first connecting plate (72), an arc sleeve (73) and an arc guide plate (74). The first cylinder (71) is fixedly mounted on the top rear side of the bottom plate (10) and is located on the left side of the first connecting seat (87). The first connecting plate (72) is fixedly mounted on the output end of the first cylinder (71). The top of the first connecting plate (72) is fixedly connected to the arc sleeve (73). The end of the arc sleeve (73) away from the first connecting plate (72) is fixedly connected to the arc guide plate (74). When the arc sleeve (73) is located above the pipeline, the arc guide plate (74) is in a vertical state, and the end of the arc guide plate (74) away from the arc sleeve (73) is in contact with the inner end of the annular groove (112) in a sliding manner. When the arc sleeve (73) is located above the pipeline and the steel belt is in contact with the arc guide plate (74), the bottom of the steel belt is in contact with the pipeline. The distance between the arc portion of the arc sleeve (73) close to the pipeline and the pipeline is two centimeters. When the arc sleeve (73) is located above the pipeline, the arc sleeve (73) and the pipeline are concentrically arranged.

5. The low flow resistance and high efficiency spiral fin tube manufacturing equipment according to claim 3 is characterized in that: The clamping type cutting assembly (13) comprises a clamping assembly and a cutting assembly. The clamping assembly is fixedly mounted on the top of the base plate (10) and is located below the follower wheel (114). The cutting assembly is fixedly mounted on a group of clamping ends of the clamping assembly. The cutting assembly cooperates with the two groups of clamping ends of the clamping assembly to achieve cutting.

6. The low flow resistance and high efficiency spiral fin tube manufacturing equipment according to claim 5, characterized in that: The clamping assembly includes a pressing plate (132) and a second symmetrical linear module (133). The second symmetrical linear module (133) is fixedly installed on the top of the base plate (10). Both driving ends of the second symmetrical linear module (133) are fixedly connected to the pressing plate (132). The pressing plates (132) are located on both sides of the steel strip. One group of pressing plates (132) is fixedly connected to the cutting assembly.

7. The low flow resistance and high efficiency spiral fin tube manufacturing equipment according to claim 6, characterized in that: The cutting assembly includes a fifth connecting plate (134), a fourth cylinder (135) and a cutter (136). The fifth connecting plate (134) is fixedly mounted on the outer wall of a group of pressure plates (132). The fourth cylinder (135) is fixedly mounted on the outer wall of the fifth connecting plate (134). The cutter (136) is fixedly mounted on the driving end of the fourth cylinder (135). Both groups of pressure plates (132) are provided with a transverse hole (131) for providing a movable space for the cutter (136).

8. The low flow resistance and high efficiency spiral fin tube manufacturing equipment according to claim 7, characterized in that: The feeding assembly (12) includes a guide wheel (121), a fourth connecting plate (122), a clamping drive assembly and a movable material guide assembly. The clamping drive assembly is fixedly mounted on the bottom of the base plate (10). The movable material guide assembly is fixedly connected to the base plate (10), and the guide end of the movable material guide assembly is located below the follower wheel (114) and the pressure plate (132). The guide end of the movable material guide assembly is located above the clamping drive assembly. The fourth connecting plate (122) is fixedly mounted on the clamping drive assembly. The guide wheel (121) is rotatably mounted on the lower end of the side wall of the fourth connecting plate (122). The steel belt is slidably connected to the outer side of the fourth connecting plate (122), the clamping end of the clamping drive assembly and the inner wall of the guide end of the movable material guide assembly.

9. A method for manufacturing a low flow resistance and high efficiency spiral finned tube manufacturing device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: When a group of spiral finned tubes is quickly finished, the horizontal drive assembly (2) and the first motor (4) are suspended, the feeding assembly (12) clamps the steel strip, the clamping cutting assembly (13) cuts it, and the steel tube continues to rotate and move to continue forming; Step 2: The steel pipe passes through the support roller (14) and is connected to the electric chuck (6). The electric chuck (6) clamps the pipe, and the roller pressing component (8) and the guide component (11) limit the side wall of the pipe; Step 3: The arc guide assembly (7) rotates to the top of the steel pipe, the feeding assembly (12) drives the steel belt to move upward into the guide assembly (11), the feeding assembly (12) drives the steel belt to move by rolling, and the steel belt moves into the arc guide assembly (7) through the guide assembly (11), and the end of the steel belt moves to the top of the steel pipe, and the welding assembly (9) laser welds the contact point between the steel belt and the steel pipe; Step 4: The first motor (4) drives the electric chuck (6) to rotate, and the electric chuck (6) drives the steel pipe to rotate. The feeding assembly (12) drives the steel belt to move simultaneously, and the welding assembly (9) welds the steel belt synchronously. After the steel belt is wrapped around the steel pipe for three-quarters of a circle, the arc guide assembly (7) rotates outward and separates from the steel belt; Step 5: While the first motor (4) continues to rotate, the horizontal drive assembly (2) drives the first motor (4) to move along the guide rail assembly (3), so that the electric chuck (6) rotates and moves at the same time, and the welding assembly (9) performs laser spiral welding. After three turns of spiral welding on the steel pipe, the feeding assembly (12) stops driving the steel strip, and the horizontal drive assembly (2), the first motor (4), the rolling assembly (8) and the guide assembly (11) cooperate with the rotating steel pipe to drive the steel strip to move automatically, and the rolling assembly (8), the welding assembly (9) and the guide assembly (11) cooperate to continue spiral welding; Step 6: Repeat steps 1-5.

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