Pipe tip forming equipment and method

Abstract

The invention discloses a pipe tip forming device and method. The forming device is characterized in that a hot air gun is installed at the top of a sliding table air cylinder, a positioning mark is installed at the top of a linear guide rail, a guide pipe groove is installed at the tops of a lifting table and adjustable supporting legs, and a rotating clamp is installed on a support; the forming method comprises the steps that technological parameters are set, and the hot air gun is preheated; and assembling and loading the to-be-processed pipe, and heating the to-be-processed pipe based on preset process parameters. The hot air gun is used as a heat source, the tip of the pipe is formed through the mandrel and the heat shrink tube, lubricating agents such as silicone oil do not need to be used, the requirement for deviation of the outer diameter of the tip of the pipe is lowered, the machining effect is improved, and meanwhile the production cost and the equipment maintenance frequency are effectively reduced; and the distance between the tip of the pipe and the air nozzle of the hot air gun, the time for heating the pipe, the rotating speed of the pipe and other process parameters can be accurately controlled during forming, the tip of the pipe can be stably formed after being uniformly heated in all directions, and the yield is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a tube tip forming device and method. Background Technology

[0002] After being cut, the tips of tubing in medical devices (such as catheters and cannulas) often have sharp edges, burrs, or irregular shapes. These untreated tips can cause scratches, punctures, and other injuries to human tissues during use, and can also affect the smoothness of device insertion and operational safety. Therefore, it is necessary to shape the tips of the cut tubing. The core objective is to use a specific process to make the tip part smooth and rounded (similar to a chamfer or arc-shaped structure).

[0003] Existing technical solutions include: (1) using a tip forming machine to push the tube into the mold and simultaneously heating it to shape the tip of the tube. This solution requires high precision in the outer diameter of the tip of the tube. When the outer diameter is slightly large or there is a shape deviation, it is difficult to push the tube into the tip forming mold. In addition, it is often necessary to use lubricants such as silicone oil with limited biocompatibility, otherwise it will cause pollution to the tube and the production cost is high; (2) inserting a mandrel into the tube and then covering it with a heat shrink tube. After loading the tube, a laser welding machine is used to heat the tip and use the heat shrink tube to shape the tip of the tube. This solution requires the use of a precision laser generator as a heat source to continuously heat the tip of the tube, and the maintenance and production costs are high. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a pipe tip forming device and method.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a tube tip forming apparatus, comprising:

[0006] A hot air gun is mounted on the top of the slide cylinder and is used to heat the pipe to be processed.

[0007] A positioning mark is installed on the top of the linear guide rail; the positioning mark is used to mark the loading position.

[0008] A guide groove is installed on the top of the lifting platform and adjustable support feet. The guide groove is used to support and position the pipe to be processed.

[0009] A rotating clamp, mounted on a bracket, is used to clamp a mandrel at one end of the pipe to be processed.

[0010] In some embodiments, the hot air gun is disposed on one side of the middle of the base plate, and a first support base is disposed on the outside of the hot air gun. The hot air gun is mounted on the top of the slide cylinder through the first support base. The nozzle is detachably mounted on the air outlet of the hot air gun. The slide cylinder is connected to an external air source through a pipeline. A protective cover is disposed on the top of the hot air gun. A sensing plate is disposed on the protective cover. A connector is disposed on the edge of the protective cover. The protective cover is rotatably connected to the support columns on both sides of the hot air gun through the connector. A photoelectric switch is disposed on the support column.

[0011] In some embodiments, the positioning mark is located on the other side of the center of the base plate, the positioning mark is installed on the top of the linear guide rail, and a locking knob is provided on one side of the linear guide rail.

[0012] In some embodiments, the conduit groove is located on one side of the positioning mark, and a second support seat is provided at the bottom of the conduit groove. The conduit groove is detachably mounted on the top of the lifting platform and the adjustable support foot via the second support seat. A lifting knob is provided on one side of the lifting platform.

[0013] In some embodiments, the rotary clamp is located on the other side of the positioning mark, the bottom of the rotary clamp is provided with a bracket, the rotary clamp is mounted on the base plate through the bracket, and the end of the rotary clamp is rotatably connected to the output end of the drive motor.

[0014] In some embodiments, a control cabinet is also provided, and a start button is provided on the same side of the guide tube groove and the rotary fixture. The control cabinet is electrically connected to the start button, the hot air gun, the solenoid valve of the control slide cylinder, and the drive motor.

[0015] In some embodiments, a mandrel is inserted inside the pipe to be processed, and a heat shrink tubing is fitted on the outside of the pipe to be processed. The mandrel at one end of the pipe to be processed is clamped and fixed by a rotating clamp, and the other end of the pipe to be processed is supported and placed by a guide groove.

[0016] In a second aspect, the present invention also provides a method for forming a pipe tip, performed via a pipe tip forming apparatus as described in the first aspect, the forming method comprising:

[0017] S100, set process parameters, preheat hot air gun;

[0018] S200: Assemble the mandrel and heat shrink tubing, load the tubing to be processed, adjust and align the processing position of the tubing to be processed, and form the tip of the tubing to be processed based on preset process parameters.

[0019] In some embodiments, S100 includes:

[0020] S110, set the process parameters corresponding to temperature, air flow rate, heating time of the pipe and rotation speed of the pipe;

[0021] S120 adjusts the alignment of the tip of the pipe to be processed to the target processing position by moving the positioning mark on the slider on the linear guide rail, adjusts the distance from the hot air gun nozzle to the tip of the pipe to be processed by the limiter on the slide cylinder, and adjusts the height of the guide groove by the lifting platform and adjustable support feet.

[0022] S130, turn on the hot air gun to preheat to the set temperature.

[0023] In some embodiments, S200 includes:

[0024] S210, insert the mandrel to the inside of the pipe to be processed at a predetermined distance, put the heat shrink tubing on the tip of the pipe to be processed, use other hot air guns or hot air desoldering stations to pre-shrink the heat shrink tubing, and fix the heat shrink tubing and mandrel.

[0025] S220, adjust the alignment of the pipe to be processed, clamp and fix the mandrel at one end of the pipe to be processed by the rotating clamp, and the guide groove horizontally supports the other end of the pipe to be processed;

[0026] S230: Lower the protective cover to cover the gap between the nozzle of the hot air gun and the pipe to be processed, and press the two start buttons simultaneously to heat the pipe to be processed based on the preset process parameters.

[0027] S240, lift the protective cover, release the rotating clamp to remove the processed tube, and after cooling, peel off the heat shrink tubing and pull out the mandrel.

[0028] The present invention has the following beneficial effects:

[0029] 1. This invention uses a rotating clamp to fix a mandrel and a tube to be processed fixed on the mandrel. After the tube to be processed is rotated at a constant speed by a drive motor, a hot air gun is used as a heat source to continuously heat the tip of the tube to be processed. The tip of the tube is shaped by the mandrel and heat shrink tubing. There is no need to use lubricants such as silicone oil, which effectively reduces the pollution to the tube and reduces the deviation requirements of the outer diameter of the tube tip. It improves the processing effect while effectively reducing production costs and equipment maintenance frequency.

[0030] 2. In the molding process, the present invention can precisely control process parameters such as the distance between the tip of the tube and the nozzle of the hot air gun, the heating time of the tube, and the rotation speed of the tube. This allows the tip of the tube to be heated evenly in all directions and to be formed stably, thereby solving the problem of poor forming at the tip and effectively improving the yield rate. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the pipe tip forming equipment proposed in this invention. Figure 1;

[0032] Figure 2 This is a front view of the pipe tip forming device proposed in this invention;

[0033] Figure 3 This is a top view of the pipe tip forming device proposed in this invention;

[0034] Figure 4 This is a schematic diagram of the structure of the pipe tip forming equipment proposed in this invention. Figure 2 ;

[0035] Figure 5 This is a flowchart illustrating the pipe tip forming method proposed in this invention. Figure 1 ;

[0036] Figure 6 This is a flowchart illustrating the pipe tip forming method proposed in this invention. Figure 2 ;

[0037] Figure 7 This is a flowchart illustrating the pipe tip forming method proposed in this invention. Figure 3 .

[0038] Legend:

[0039] 1. Hot air gun; 2. Slide cylinder; 3. Tube to be processed; 4. Positioning mark; 5. Linear guide rail; 6. Guide groove; 7. Lifting platform; 8. Rotary clamp; 9. Adjustable support foot; 10. Base plate; 11. First support seat; 12. Protective cover; 13. Induction plate; 14. Connector; 15. Support column; 16. Photoelectric switch; 17. Locking knob; 18. Second support seat; 19. Lifting knob; 20. Bracket; 21. Drive motor; 22. Control cabinet; 23. Start button; 24. Mandrel; 25. Heat shrink tubing; 26. Linear module. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] This application provides a tube tip forming device and method, solving the problems of high precision requirements for the outer diameter of the tube tip in existing tip forming machines, the need for biocompatible silicone oil and other lubricants, and high production costs; and high maintenance and production costs in laser welding machine forming methods. This application uses a rotating clamp to fix the mandrel and the tube to be processed on the mandrel. After the tube is rotated at a constant speed by a drive motor, a hot air gun is used as a heat source to continuously heat the tip of the tube. The mandrel and heat shrink tubing are used to form the tube tip, eliminating the need for silicone oil and other lubricants, effectively reducing contamination of the tube and lowering the requirements for the outer diameter deviation of the tube tip. This improves the processing effect while effectively reducing production costs and equipment maintenance frequency. During the forming process, the distance between the tube tip and the hot air gun nozzle, the heating time, and the rotation speed of the tube can be precisely controlled, ensuring that the tube tip is uniformly heated in all directions and forms stably, thus solving the problem of poor tip forming and effectively improving the yield rate.

[0042] Please refer to the following examples for details:

[0043] Reference Figures 1-4 The present invention provides an embodiment of a pipe tip forming device, the specific structure of which includes: a hot air gun 1, a positioning mark 4, a guide groove 6 and a rotating clamp 8.

[0044] Furthermore, the hot air gun 1 is located on one side of the middle of the base plate 10, and the hot air gun 1 is installed on the top of the slide cylinder 2 for heating the pipe 3 to be processed.

[0045] It should be explained in detail that before forming the tip, the hot air gun 1 should be turned on for preheating. The tip of the pipe can only be processed when the hot air gun 1 is preheated to the set temperature. Furthermore, when processing the tip continuously, the hot air gun 1 should not be turned off, so that the temperature of the hot air gun 1 remains constant, eliminating the need for preheating before each processing and thus saving processing time.

[0046] Specifically, a first support base 11 is provided on the outside of the hot air gun 1. The hot air gun 1 is mounted on the top of the slide cylinder 2 through the first support base 11, which can provide reliable support for the hot air gun 1. The nozzle is detachably installed on the air outlet of the hot air gun 1, so that the nozzle can be quickly replaced according to the material, size and target size of the pipe 3 to be processed. The slide cylinder 2 is connected to an external air source through a pipeline. The external air source can provide stable air pressure to drive the slide cylinder 2 to move the hot air gun 1 closer to or away from the pipe 3 to be processed.

[0047] In addition, to ensure the safety of operators, a protective cover 12 is provided on the top of the hot air gun 1, and a sensor plate 13 is provided on one or both sides of the protective cover 12. A connector 14 (which can be a hinge or hinge, etc.) is provided on the edge of the protective cover 12, so that the protective cover 12 can be rotatably connected to the support columns 15 on both sides of the hot air gun 1 through the connector 14. A photoelectric switch 16 is provided on one or both sides of the support column 15.

[0048] Understandably, operators can flexibly open and close the protective cover 12 and load and unload the pipes 3 to be processed according to actual work needs; and during actual processing, the sensor 13 can be used in conjunction with the photoelectric switch 16 to detect whether the protective cover is completely placed in the preset position.

[0049] For example, in actual processing, to achieve a more precise heating effect, a hot air gun 1 with appropriate power (rated power range of 0.1kW to 50kW) and air flow rate (maximum air flow rate range of 20L / min to 600L / min) can be selected based on factors such as the material (e.g., medical-grade TPU, PA12, and other polymer materials), size, and target size of the pipe 3 to be processed. A suitable shape and size (internal hole area range of 3mm) can also be selected from various nozzle specifications. 2 ~9000mm 2 This product limits the area for forming the pipe tip, preventing heat deformation of non-processed areas; simultaneously, the temperature and airflow of the hot air gun 1 also need to be adjusted accordingly. During the tip forming process, the nozzle of the hot air gun 1 is always aimed at the uniformly rotating pipe tip, continuously outputting hot air to ensure that the pipe tip is evenly heated and melted around its perimeter; in addition, the stroke range of the slide cylinder 2 can be finely adjusted by the limiter (the distance between the nozzle and the pipe tip ranges from 1mm to 80mm), thereby adjusting the distance between the nozzle of the hot air gun 1 and the pipe tip.

[0050] It should be noted that, to further expand the applicability of the equipment and meet the processing needs of different types of pipes, a linear module 26 (such as...) can be additionally installed between the slide cylinder 2 and the base plate 10. Figure 4 As shown, the linear module 26 has the characteristics of high precision and high load capacity. When in use, it can drive the slide cylinder 2 and the hot air gun 1 to move in a high-precision linear manner. In this way, the air nozzle can be moved synchronously when the tip forming is performed. It is suitable for pipes with long tip forming areas, complex tip forming areas, or multiple materials connected axially in the tip forming area.

[0051] Understandably, by using a drive motor 21 to rotate the tube 3 to be processed at a uniform speed, and using a hot air gun 1 as a heat source for continuous heating, the tip of the tube can be heated evenly in all directions and then stably formed, thereby effectively improving the consistency and reliability of the processing effect. Compared with traditional laser heating, mold heating and other methods, the hot air gun 1 has a relatively simple equipment structure and is easy to maintain and operate. It does not require the use of expensive laser generators or tip forming molds, which effectively reduces production costs and maintenance frequency. It is especially suitable for the small-batch, multi-variety tube tip forming processing needs in the medical device industry.

[0052] Furthermore, the positioning mark 4 is set on the other side of the middle of the base plate 10, and the positioning mark 4 is installed on the top of the linear guide rail 5. The position of the mark is adjusted by the linear movement of the slider on the linear guide rail 5, providing a precise position reference for pipe loading.

[0053] Specifically, a locking knob 17 is provided on one side of the linear guide 5. When it is necessary to adjust the position of the positioning mark 4, simply loosen the locking knob 17 to push the linear guide 5 to slide. After the position is determined, tightening the locking knob 17 will securely lock the linear guide 5, ensuring that the positioning mark 4 remains stable during the processing and will not be displaced due to vibration or other factors.

[0054] It is understandable that using the positioning mark 4 as a position reference can ensure that the tip of the pipe is in the right position each time it is loaded. During the actual processing, the position of the positioning mark 4 can be adjusted by the slider on the linear guide 5 according to the material and size of the pipe 3 to be processed, as well as the inner diameter and shape of the nozzle, so that the tip of the pipe is in the corresponding processing position.

[0055] Furthermore, the guide groove 6 is located on one side of the positioning mark 4. The guide groove 6 is installed on the top of the lifting platform 7 and the adjustable support foot 9 to support and position the pipe 3 to be processed.

[0056] Specifically, a second support base 18 is provided at the bottom of the guide tube groove 6. The guide tube groove 6 is detachably installed on the top of the lifting platform 7 and the adjustable support foot 9 via the second support base 18. The second support base 18 is fixed to the top of the lifting platform 7 and the adjustable support foot 9 by bolts. This not only facilitates the quick replacement and maintenance of the guide tube groove 6, but also allows for flexible adaptation to various specifications of guide tube groove 6 according to different processing requirements. Correspondingly, a lifting knob 19 is provided on one side of the lifting platform 7. The operator can adjust the height of the guide tube groove 6 on the lifting platform 7 by manually rotating the lifting knob 19.

[0057] Understandably, before processing, a conduit groove 6 of appropriate length and depth can be selected according to the length and outer diameter of the pipe 3 to be processed. The height of the lifting platform 7 can be adjusted by manually rotating the lifting knob 19 according to the outer diameter of the pipe 3 to be processed, so that the pipe is always horizontal in the conduit groove 6 during the processing, avoiding damage such as bending and scratches.

[0058] Furthermore, a rotating clamp 8 is located on the other side of the positioning mark 4 and is mounted on the base plate 10 to clamp the mandrel 24 at one end of the pipe 3 to be processed.

[0059] Specifically, the bottom of the rotary clamp 8 is provided with a bracket 20. The rotary clamp 8 can be detachably installed on the base plate 10 through the bracket 20. It can be quickly assembled with the bracket 20 through standardized bolt holes. The appropriate clamp module can be quickly replaced according to the processing requirements of different specifications of pipes. Correspondingly, the end of the rotary clamp 8 is rotatably connected to the output end of the drive motor 21, so that the drive motor 21 can drive the rotary clamp 8 and the clamped mandrel 24 to rotate synchronously.

[0060] Understandably, the mandrel 24 and the tube 3 to be processed are fixed on the mandrel 24 by the rotating clamp 8. After the tube 3 is rotated at a constant speed by the drive motor 21, the tip of the tube 3 is continuously heated by the hot air gun 1 as a heat source. The tip of the tube 3 is then shaped by the mandrel 24 and the heat shrink tubing 25. This eliminates the need for lubricants such as silicone oil, effectively reducing contamination of the tube and lowering the tolerance for the outer diameter of the tube tip. This improves the processing effect while effectively reducing production costs and equipment maintenance frequency. During the shaping process, the drive motor... The rotating fixture 21 drives the mandrel 24 on the rotating fixture 8 at a constant speed (the speed range of the rotating fixture 8 and the drive motor 21 is 0.1r / s-20r / s), which in turn drives the tube 3 to be processed and the heat shrink tubing 25 to rotate synchronously. By adjusting the speed of the drive motor 21, the tip of the tube is heated evenly, and the tube is prevented from being damaged by excessive speed. With the help of the slide cylinder 2, the distance between the tip of the tube and the nozzle of the hot air gun 1 and the heating time of the tube can be precisely controlled, so that the tip of the tube can be heated evenly in all directions and then stably formed, thereby solving the problem of poor forming at the tip and effectively improving the yield.

[0061] It should be explained in detail that a control cabinet 22 is also provided, and the control cabinet 22 is equipped with a PLC controller and a touch screen human-machine interface. The operator can intuitively set the processing parameters through the touch screen, such as the power of the hot air gun 1, the stroke of the slide cylinder 2, and the speed of the drive motor 21. Correspondingly, the guide tube groove 6 and the rotary fixture 8 are provided with a start button 23 on the same side. The control cabinet 22 is electrically connected to the start button 23, the hot air gun 1, the solenoid valve of the control slide cylinder 2, and the drive motor 21. The start button 23 adopts a two-hand operation design. Both hands must be pressed at the same time to trigger the operation of the equipment, which effectively avoids the safety hazards caused by the operator's single-handed operation.

[0062] Understandably, before processing, it is necessary to select a matching mandrel 24 and heat shrink tubing 25 according to the specific dimensions of the tube 3 to be processed. First, the mandrel 24 is inserted to the inside of the tube 3 to be processed at a preset distance. Then, the heat shrink tubing 25 is fitted to the tip of the tube 3 to be processed. Then, the mandrel 24 at one end of the tube 3 to be processed is clamped and fixed by the rotating clamp 8. Finally, the other end of the tube 3 to be processed is supported by the guide groove 6 and placed so that it is in a horizontal state.

[0063] In addition, before processing the tip of the pipe, the protective cover 12 needs to be lowered, and the photoelectric switch 16 is symmetrically arranged to detect whether there is a sensor 13 blocking it. Then, it is determined whether the protective cover 12 is completely closed to cover the gap between the nozzle of the hot air gun 1 and the pipe 3 to be processed before the slide cylinder 2 can be operated. When processing the tip of the pipe, the start button 23 on the same side of the rotating clamp 8 and the lifting platform 7 needs to be pressed with both hands at the same time before the slide cylinder 2 can be operated. Through the above two safety confirmation measures, the operator can be effectively prevented from being pinched when the slide cylinder 2 is operated.

[0064] Reference Figures 5-7 The present invention also provides an embodiment of a pipe tip forming method, performed via the pipe tip forming equipment as described in the above embodiments, the forming method comprising:

[0065] S100, set process parameters, preheat hot air gun 1;

[0066] S200, assemble mandrel 24 and heat shrink tubing 25, load the tube to be processed 3, adjust and align the processing position of the tube to be processed 3, and form the tip of the tube to be processed 3 based on preset process parameters.

[0067] Please continue reading. Figure 6 In this embodiment, S100 includes:

[0068] S110, set the process parameters corresponding to temperature, air flow rate, heating time of the pipe and rotation speed of the pipe;

[0069] S120, the positioning mark 4 is moved by the slider on the linear guide rail 5 to adjust the alignment of the tip of the pipe to be processed 3 to the target processing position, the distance from the nozzle of the hot air gun 1 to the tip of the pipe to be processed 3 is adjusted by the limiter on the slide cylinder 2, and the height of the guide groove 6 is adjusted by the lifting platform 7 and the adjustable support foot 9.

[0070] S130, turn on the hot air gun 1 to preheat to the set temperature.

[0071] Please continue reading. Figure 7 In this embodiment, S200 includes:

[0072] S210, insert the mandrel 24 to the inside of the tube 3 to be processed at a preset distance, put the heat shrink tubing 25 on the tip of the tube 3 to be processed, use another hot air gun 1 or hot air desoldering station to pre-shrink the heat shrink tubing 25, and fix the heat shrink tubing 25 and the mandrel 24.

[0073] S220, adjust the alignment of the processing position of the pipe 3 to be processed, and clamp and fix the mandrel 24 at one end of the pipe 3 to be processed by the rotating clamp 8, while the guide groove 6 horizontally supports the other end of the pipe 3 to be processed.

[0074] S230, lower the protective cover 12 to cover the gap between the nozzle of the hot air gun 1 and the pipe 3 to be processed, and press the two start buttons 23 simultaneously to heat the pipe 3 to be processed based on the preset process parameters;

[0075] S240, lift the protective cover 12, release the rotating clamp 8 to remove the processed tube, and after cooling, peel off the heat shrink tubing 25 and pull out the mandrel 24.

[0076] Working principle:

[0077] Select a matching mandrel 24 and heat shrink tubing 25 according to the specific dimensions of the tube 3 to be processed. First, insert the mandrel 24 to the inside of the tube 3 to be processed at a preset distance. Then, put the heat shrink tubing 25 on the tip of the tube 3 to be processed. Then, use a hot air gun 1 to heat and pre-shrink the tube, so that the heat shrink tubing 25 is tightly attached to the tip of the tube 3 to be processed, thus fixing the relative position between the tube 3 to be processed and the mandrel 24.

[0078] Then, the mandrel 24 at one end of the pipe 3 to be processed is clamped and fixed by the rotating clamp 8. Finally, the other end of the pipe 3 to be processed is supported by the guide groove 6 and placed so that it is in a horizontal state. The position of the mandrel 24 is adjusted with reference to the positioning mark 4 so that the tip of the pipe 3 to be processed is aligned with the positioning mark 4. Then, the rotating clamp 8 is locked to fix the mandrel 24.

[0079] After lowering the protective cover 12, press both start buttons 23 simultaneously to run the tip forming equipment. The tip of the tube 3 to be processed is formed according to the preset processing parameters (temperature range is 80℃~800℃, air flow range is 20L / min~600L / min, distance between the nozzle and the tip of the tube is 1mm~80mm, and rotation speed of the rotary fixture 8 and the drive motor 21 is 0.1r / s~20r / s) and the preset processing parameters (temperature range is 80℃~800℃, air flow range is 20L / min~600L / min, distance between the nozzle and the tip of the tube is 1mm~80mm, and rotation speed of the rotary fixture 8 and the drive motor 21 is 0.1r / s~20r / s).

[0080] After the tip of the pipe to be processed is formed, lift the protective cover 12 and loosen the rotating clamp 8 to take out the processed pipe; after it has completely cooled, peel off the heat shrink tubing 25 and pull out the mandrel 24.

[0081] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pipe tip forming device, characterized in that, include: A hot air gun is mounted on the top of the slide cylinder and is used to heat the pipe to be processed. A positioning mark is installed on the top of the linear guide rail. The positioning mark is used to mark the loading position of the pipe to be processed. A guide groove is installed on the top of the lifting platform and adjustable support feet. The guide groove is used to support and position the pipe to be processed. A rotating clamp, mounted on a bracket, is used to clamp a mandrel at one end of the pipe to be processed.

2. The molding equipment according to claim 1, characterized in that, The hot air gun is located on one side of the center of the base plate. A first support base is provided on the outside of the hot air gun. The hot air gun is mounted on the top of the slide cylinder through the first support base. The nozzle is detachably installed on the air outlet of the hot air gun. The slide cylinder is connected to an external air source through a pipeline. A protective cover is provided on the top of the hot air gun. A sensor is provided on the protective cover. A connector is provided on the edge of the protective cover. The protective cover is rotatably connected to the support columns on both sides of the hot air gun through the connector. A photoelectric switch is provided on the support column.

3. The molding equipment according to claim 1, characterized in that, The positioning mark is located on the other side of the center of the base plate. The positioning mark is installed on the top of the linear guide rail. A locking knob is provided on one side of the linear guide rail.

4. The molding equipment according to claim 1, characterized in that, The guide channel is located on one side of the positioning mark. A second support base is provided at the bottom of the guide channel. The guide channel is detachably installed on the top of the lifting platform and the adjustable support foot via the second support base. A lifting knob is provided on one side of the lifting platform.

5. The molding equipment according to claim 1, characterized in that, The rotating clamp is located on the other side of the positioning mark. A bracket is provided at the bottom of the rotating clamp. The rotating clamp is mounted on the base plate through the bracket. The end of the rotating clamp is connected to the output end of the drive motor.

6. The molding equipment according to claim 5, characterized in that, A control cabinet is also provided. A start button is provided on the same side of the guide tube groove and the rotary fixture. The control cabinet is electrically connected to the start button, the hot air gun, the solenoid valve of the control slide cylinder, and the drive motor.

7. The molding equipment according to claim 1, characterized in that, The mandrel is inserted inside the pipe to be processed, and a heat shrink tubing is fitted on the outside of the pipe to be processed. The mandrel at one end of the pipe to be processed is clamped and fixed by a rotating clamp, and the other end of the pipe to be processed is supported and placed by a guide groove.

8. A method for forming the tip of a pipe, characterized in that, The molding method is performed via a molding apparatus as described in any one of claims 1 to 7, the molding method comprising: S100, set process parameters, preheat hot air gun; S200: Assemble the mandrel and heat shrink tubing, load the tubing to be processed, adjust and align the processing position of the tubing to be processed, and form the tip of the tubing to be processed based on preset process parameters.

9. The method for forming the tip of a pipe according to claim 8, characterized in that, S100 includes: S110, set the process parameters corresponding to temperature, air flow rate, heating time of the pipe and rotation speed of the pipe; S120 adjusts the alignment of the tip of the pipe to be processed to the target processing position by moving the positioning mark on the slider on the linear guide rail, adjusts the distance from the hot air gun nozzle to the tip of the pipe to be processed by the limiter on the slide cylinder, and adjusts the height of the guide groove by the lifting platform and adjustable support feet. S130, turn on the hot air gun to preheat to the set temperature.

10. The method for forming the tip of a pipe according to claim 8, characterized in that, S200 includes: S210, insert the mandrel to the inside of the pipe to be processed at a predetermined distance, put the heat shrink tubing on the tip of the pipe to be processed, use other hot air guns or hot air desoldering stations to pre-shrink the heat shrink tubing, and fix the heat shrink tubing and mandrel. S220, adjust the alignment of the pipe to be processed, clamp and fix the mandrel at one end of the pipe to be processed by the rotating clamp, and the guide groove horizontally supports the other end of the pipe to be processed; S230: Lower the protective cover to cover the gap between the nozzle of the hot air gun and the pipe to be processed, and press the two start buttons simultaneously to heat the pipe to be processed based on the preset process parameters. S240, lift the protective cover, release the rotating clamp to remove the processed tube, and after cooling, peel off the heat shrink tubing and pull out the mandrel.

Images