Pipe high-frequency welding device

Abstract

The utility model discloses a pipe high-frequency welding device which comprises a machine frame, a forming roller assembly, a high-frequency welding machine, a deslagging assembly and a water cooling assembly, the forming roller assembly, the high-frequency welding machine, the deslagging assembly and the water cooling assembly are sequentially arranged on the machine frame from left to right, and an induction coil is electrically connected to the high-frequency welding machine. The deslagging assembly comprises a frame, a supporting roller and a deslagging cutter, the frame is installed on the machine frame, the supporting roller is movably installed in the frame and located in the lower half space of the frame, and the deslagging cutter is installed in the frame and located in the upper half space of the frame. According to the high-frequency welding device for the pipe, the frame is arranged, the slag removal cutter is installed in the frame, when the welded pipe passes through the slag removal cutter, the slag removal cutter can scrape welding slag on the surface of the welded pipe, and the quality of the welded pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe processing, in particular to a high-frequency welding device for pipes. Background Art

[0002] Metal pipes are generally formed by roller dies and continuously produced into pipes of certain specifications through high-frequency welding. The heating method adopts induction welding or contact welding, that is, the moving steel strip is fed into the unit, and the steel strip is curled into a tube blank through the forming roller, and then the opening surface is welded using a high-frequency welding device.

[0003] In actual use, welding slag will be formed at the welding point after the pipe is welded, and the welding slag will affect the quality of the pipe. In addition, the pipe will be cooled after welding. In the prior art, coolant (water) is often sprayed onto the outer wall of the pipe with the help of a nozzle to achieve the effect of water cooling. However, the coolant splashed everywhere is not easy to collect and process. Utility Model Content

[0004] The utility model aims to solve at least one problem existing in the prior art. To this end, the purpose of the utility model is to provide a high-frequency welding device for pipes.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-frequency welding device for pipes comprises a frame, a forming roller assembly, a high-frequency welding machine, a slag removal assembly and a water-cooling cooling assembly, wherein the forming roller assembly, the high-frequency welding machine, the slag removal assembly and the water-cooling cooling assembly are sequentially arranged on the frame from left to right, the high-frequency welding machine is electrically connected to an induction coil, the slag removal assembly comprises a frame, a supporting roller and a slag removal knife, the frame is mounted on the frame, the supporting roller is movably mounted in the frame and is located in the lower half space of the frame, and the slag removal knife is mounted in the frame and is located in the upper half space of the frame.

[0007] Preferably, guide rods are provided on both sides of the top of the slag removing knife, the guide rods pass through the frame, and a limit plate is provided at one end of the guide rod passing through the frame, and a spring is installed between the slag removing knife and the upper inner wall of the frame, one end of the spring abuts against the slag removing knife, and the other end abuts against the frame.

[0008] Preferably, the water-cooling cooling component includes a lifting platform, a cooling pipe, a support plate and a plurality of cooling nozzles. The lifting platform is installed on the frame and the upper surface is an inclined surface. One end of the cooling pipe is installed on the lifting platform and the other end is installed on the frame, so that the cooling pipe is in an inclined state. The support plate is installed inside the cooling pipe and is located in the upper half space of the cooling pipe. The cooling nozzle is installed on the support plate.

[0009] Preferably, a liquid storage tank is arranged on the right side of the cooling pipe, and one end of the cooling pipe close to the liquid storage tank is lower than the other end of the cooling pipe.

[0010] Preferably, it also includes a guide assembly, which is arranged between the forming roller assembly and the high-frequency welding machine. The guide assembly includes a vertical plate and a plurality of pulleys. The vertical plate is installed on the frame. Through holes are arranged inside the vertical plate. The pulleys are installed in the through holes at equal intervals.

[0011] Preferably, it further comprises a plurality of conveying roller assemblies, wherein the conveying roller assemblies are installed between the high-frequency welding machine and the slag removal assembly, and between the slag removal assembly and the water cooling assembly.

[0012] Beneficial effects of the utility model:

[0013] 1. The high-frequency pipe welding device proposed in the utility model is provided with a frame, and a slag removal knife is installed inside the frame. When the welded pipe passes through the slag removal knife, the slag removal knife will scrape off the welding slag on the surface of the welded pipe, thereby improving the quality of the welded pipe.

[0014] 2. The high-frequency pipe welding device proposed by the utility model is provided with a cooling pipe, and a cooling nozzle is installed inside the cooling pipe. The coolant sprayed by the cooling nozzle cools the pipe in the cooling pipe, and the used coolant flows into the liquid storage tank along the inclination direction of the cooling pipe, thereby avoiding splashing of the coolant and facilitating the collection and treatment of the coolant.

[0015] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of the utility model high-frequency welding device for pipes;

[0017] Figure 2 This is a top view of the high-frequency pipe welding device of the utility model;

[0018] Figure 3 It is a three-dimensional diagram of the slag removal component of the utility model;

[0019] Figure 4 This is a cross-sectional view of the cooling pipe of the utility model;

[0020] Figure 5 It is a stereogram of the guide assembly of the utility model.

[0021] In the figure: 1. frame, 2. forming roller assembly, 3. high frequency welding machine, 31. induction coil, 4. slag removal assembly, 41. frame, 42. support roller, 43. slag removal knife, 44. guide rod, 45. limit plate, 46. spring, 5. water cooling assembly, 51. lifting platform, 52. cooling pipe, 53. support plate, 54. cooling nozzle, 6. liquid storage tank, 7. guide assembly, 71. vertical plate, 72. pulley, 8. conveying roller assembly. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0024] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which the utility model belongs. The words "one" or "one" and the like used in the specification and claims of this application do not indicate a quantitative limitation, but indicate the existence of at least one. "Multiple" includes two, which is equivalent to at least two. "Including" or "including" and the like mean that the elements or objects appearing in front of "including" or "including" include the elements or objects listed after "including" or "including" and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and the like are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect. The singular forms of "one", "said" and "the" used in the specification and the appended claims of this application are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0025] Please refer to Figure 1 , 2A high-frequency welding device for pipes includes a frame 1, a forming roller assembly 2, a high-frequency welding machine 3, a slag removal assembly 4 and a water-cooling assembly 5. The forming roller assembly 2, the high-frequency welding machine 3, the slag removal assembly 4 and the water-cooling assembly 5 are arranged on the frame 1 from left to right. Specifically, the forming roller assembly 2 is connected to the driving box mechanism through a universal shaft, and the steel strip passes through the forming roller assembly 2 to form a cylindrical open tube, that is, the pipe to be welded. The high-frequency welding machine 3 is electrically connected to an induction coil 31, and the induction coil 31 is in the shape of a cylindrical spring 46. The working induction coil 31 of the high-frequency welding machine 3 generates a high-frequency current, and the high-frequency current is concentrated on the opening surface of the pipe to heat and weld the opening surface of the pipe.

[0026] Please refer to Figure 1 , 2 3. The slag removal assembly 4 includes a frame 41, a support roller 42 and a slag removal knife 43. The frame 41 is installed on the frame 1. The support roller 42 is movably installed in the frame 41 and is located in the lower half space of the frame 41. The slag removal knife 43 is installed in the frame 41 and is located in the upper half space of the frame 41. When the pipe passes through the slag removal knife 43, the slag removal knife 43 will scrape off the welding slag on the surface of the pipe, so that the quality of the pipe is better. Guide rods 44 are arranged on both sides of the top of the slag removal knife 43. The guide rods 44 pass through the frame 41 and the guide rods 44 are arranged on the upper side of the frame 41. A limit plate 45 is provided at one end of the rod 44 that passes through the frame 41, and a spring 46 is installed between the slag removing knife 43 and the inner wall of the frame 41. One end of the spring 46 abuts against the slag removing knife 43, and the other end abuts against the frame 41. When the pipe passes through the slag removing knife 43, the slag removing knife 43 will be slightly pushed upward. At this time, the spring 46 will be compressed, and the spring 46 will give the slag removing knife 43 a force to press the slag removing knife 43 downward so that the blade of the slag removing knife 43 is close to the pipe, thereby making the slag removing effect of the slag removing knife 43 better.

[0027] In order to prevent the spring 46 from deviating from the predetermined track, sleeves are provided on the slag removal knife 43 and the frame 41, and the spring 46 is sleeved on the sleeves.

[0028] Please refer to Figure 1 , 2 4. The water-cooling cooling component 5 includes a lifting platform 51, a cooling pipe 52, a support plate 53 and a plurality of cooling nozzles 54. The lifting platform 51 is installed on the frame 1 and the upper surface is an inclined surface. One end of the cooling pipe 52 is installed on the lifting platform 51, and the other end is installed on the frame 1, so that the cooling pipe 52 is in an inclined state. The support plate 53 is installed inside the cooling pipe 52 and is located in the upper half space of the cooling pipe 52. The cooling nozzle 54 is installed on the support plate 53. A liquid storage tank 6 is arranged on the right side of the cooling pipe 52. One end of the cooling pipe 52 close to the liquid storage tank 6 is lower than the other end of the cooling pipe 52. The coolant sprayed by the cooling nozzle 54 cools the pipe in the cooling pipe 52. The used coolant will flow into the liquid storage tank 6 along the inclined direction of the cooling pipe 52, thereby avoiding the splashing of the coolant and facilitating the collection and treatment of the coolant.

[0029] In order to facilitate the installation and fixation of the cooling nozzle 54, through holes are opened on the cooling pipe 52 and the support plate 53 for installing the cooling nozzle 54. The cooling nozzle 54 is connected to the water tank through a pipeline and a water pump.

[0030] Please refer to Figure 1 , 2 , 5, and also includes a guide assembly 7, which is arranged between the forming roller assembly 2 and the high-frequency welding machine 3. The guide assembly 7 includes a vertical plate 71 and a plurality of pulleys 72. The vertical plate 71 is installed on the frame 1. A through hole is arranged inside the vertical plate 71. The through hole and the center of the induction coil 31 are on the same straight line. The pulleys 72 are installed in the through hole at equal intervals. Specifically, the number of pulleys 72 is 3 and distributed on the two side walls and the bottom wall of the through hole. The guide assembly 7 plays a guiding role to guide the pipe straight into the induction coil 31.

[0031] Please refer to Figure 1 , 2 , and also includes two conveying roller assemblies 8, which are installed between the high-frequency welding machine 3 and the slag removal assembly 4, and between the slag removal assembly 4 and the water cooling assembly 5. The conveying roller assembly 8 is connected to the driving mechanism and is used for conveying pipes.

[0032] The utility model is a high frequency welding device for pipes, and its working principle is explained in conjunction with the accompanying drawings:

[0033] On the high-frequency welding device for pipes, the forming roller assembly 2 is used to form the steel strip into a cylindrical open pipe, i.e., the pipe to be welded; the formed pipe passes through the through hole of the vertical plate 71 and enters the induction coil 31, and the high-frequency current is concentrated on the open surface of the pipe to heat the open surface of the pipe for welding the pipe; the welded pipe continues to move under the action of the conveying roller assembly 8 and enters the slag removal assembly 4, and the slag is removed from the pipe under the action of the slag removal knife 43; the pipe after slag removal continues to move under the action of the conveying roller assembly 8 and enters the water cooling assembly 5, and the cooling nozzle 54 sprays coolant to cool the pipe by water.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high frequency welding device for pipes, characterized in that: It includes a frame, a forming roller assembly, a high-frequency welding machine, a slag removal assembly and a water-cooling cooling assembly, wherein the forming roller assembly, the high-frequency welding machine, the slag removal assembly and the water-cooling cooling assembly are sequentially arranged on the frame from left to right, the high-frequency welding machine is electrically connected with an induction coil, the slag removal assembly includes a frame, a supporting roller and a slag removal knife, the frame is installed on the frame, the supporting roller is movably installed in the frame and is located in the lower half space of the frame, and the slag removal knife is installed in the frame and is located in the upper half space of the frame.

2. A high frequency pipe welding device according to claim 1, characterized in that: Guide rods are arranged on both sides of the top of the slag removing knife, the guide rods pass through the frame, and a limit plate is arranged at one end of the guide rods passing through the frame, a spring is installed between the slag removing knife and the inner wall of the frame, one end of the spring abuts against the slag removing knife, and the other end abuts against the frame.

3. A high frequency pipe welding device according to claim 1, characterized in that: The water-cooling cooling component includes a lifting platform, a cooling pipe, a support plate and a plurality of cooling nozzles. The lifting platform is installed on the frame and the upper surface is an inclined surface. One end of the cooling pipe is installed on the lifting platform and the other end is installed on the frame, so that the cooling pipe is in an inclined state. The support plate is installed inside the cooling pipe and is located in the upper half space of the cooling pipe. The cooling nozzle is installed on the support plate.

4. A high frequency pipe welding device according to claim 3, characterized in that: A liquid storage tank is arranged on the right side of the cooling pipe, and one end of the cooling pipe close to the liquid storage tank is lower than the other end of the cooling pipe.

5. A high frequency pipe welding device according to claim 1, characterized in that: It also includes a guide assembly, which is arranged between the forming roller assembly and the high-frequency welding machine. The guide assembly includes a vertical plate and a plurality of pulleys. The vertical plate is installed on the frame. Through holes are arranged inside the vertical plate. The pulleys are installed in the through holes at equal intervals.

6. A high frequency pipe welding device according to claim 1, characterized in that: It also includes a plurality of conveying roller assemblies, which are installed between the high-frequency welding machine and the slag removal assembly, and between the slag removal assembly and the water cooling assembly.

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