Circular air tap welding machine and using method thereof

By using a cylinder-driven rivet positioning mechanism and guide design, the problems of low installation efficiency and poor safety of traditional circular air nozzle welding machines are solved, achieving high-precision positioning and clean production welding quality.

CN121892907APending Publication Date: 2026-04-21上海浦雄实业有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
上海浦雄实业有限公司
Filing Date
2025-12-30
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Traditional circular air nozzle welding methods suffer from low installation efficiency, inaccurate positioning, poor safety, and failure to meet cleanroom production standards.

Method used

The upper and lower pin positioning mechanisms are driven by cylinders, combined with a guide mechanism and a surrounding frame design, to achieve rapid positioning and stable movement of the mold, and the core mechanical structure is protected by insulating pillars for heat insulation.

Benefits of technology

It improves mold installation speed and positioning accuracy, ensures consistent welding quality, enhances equipment safety and cleanliness, and meets the production requirements of cleanrooms.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a circular air tap welding machine and a using method thereof.The circular air tap welding machine is characterized in that a driving device is installed at the upper end of a rack, an output shaft of a driving air cylinder is provided with an air cylinder connecting plate, and the lower end of the air cylinder connecting plate is provided with a leveling plate; the upper leveling plate is mounted on the leveling plate through a plurality of screws, and the upper die driving cylinders are mounted on the upper leveling plate; the heating plate is mounted on the upper leveling plate through the insulating columns, the upper blind rivet positioning mechanisms are movably mounted on the heating plate, and the upper die driving cylinders drive the lower ends of the upper blind rivet positioning mechanisms to extend out of the lower surface of the heating plate; the deck plate is installed on the rack through screws, the lower die connecting plate is installed on the deck plate and right faces the heating plate, the lower die driving air cylinders are installed on the lower die connecting plate, the lower blind rivets are installed on the lower die driving air cylinders, and the lower die driving air cylinders drive the lower blind rivets to stretch out of the upper surface of the lower die connecting plate. The device is accurate in positioning and high in mounting efficiency; operation is stable, and welding quality is improved.
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Description

Technical Field

[0001] This invention relates to the technical field of welding machines and related fields, and in particular to a circular air nozzle welding machine and its usage method. Background Technology

[0002] In the manufacturing process of medical consumables and tubing systems, the connection of air nozzles is a critical step. These nozzles typically require high standards of airtightness and structural stability. This is especially true for medical products used in cleanrooms requiring a Class 100,000 cleanroom environment, where the welding quality directly impacts the product's safety and reliability.

[0003] Traditional circular nozzle welding methods often have certain limitations: First, mold installation and positioning usually rely on manual locking or simple mechanical structures, resulting in low installation efficiency and difficulty in ensuring concentricity and positional accuracy for each installation, which can easily affect welding consistency. Second, in the heating and welding process of existing welding equipment, the fit between the heating plate and the mold is often not compact enough, lacking necessary heat insulation and protection measures, leading to rapid heat loss and low operational safety. Furthermore, for equipment used in cleanrooms, the overall structure's sealing, dustproofing, and ease of movement are often insufficiently considered, making it difficult to meet the cleanliness requirements and flexible layout needs of high-standard production environments.

[0004] Therefore, there is an urgent need for a circular air nozzle welding machine that is structurally stable, precisely positioned, highly safe, and meets the production standards of cleanrooms, in order to improve the welding quality and production efficiency of air nozzle joints. Summary of the Invention

[0005] In view of this, in order to solve the above problems, the object of the present invention is to provide a circular air nozzle welding machine, wherein, it comprises:

[0006] Frame, drive unit, upper adjustment plate, upper mold drive cylinder, upper pull pin positioning mechanism, heating plate, lower mold connecting plate, table panel, lower mold drive cylinder, lower pull pin;

[0007] The drive device is installed on the upper end of the frame, and a cylinder connecting plate is installed on the output shaft of the drive cylinder, and an adjusting plate is installed on the lower end of the cylinder connecting plate.

[0008] The upper adjustment plate is mounted on the adjustment plate by a number of screws, and a number of the upper mold drive cylinders are mounted on the upper adjustment plate;

[0009] The heating plate is mounted on the upper adjusting plate by a number of insulating pillars, a number of upper pull pin positioning mechanisms are movably mounted on the heating plate, and a number of upper mold driving cylinders drive the lower ends of the upper pull pin positioning mechanisms to extend out of the lower surface of the heating plate.

[0010] The platform is mounted to the frame with screws. The lower mold connecting plate is mounted on the platform and faces the heating plate. A plurality of lower mold drive cylinders are mounted on the lower mold connecting plate. A plurality of pull pins are mounted on the output shafts of the plurality of lower mold drive cylinders. The plurality of lower mold drive cylinders drive the plurality of pull pins to extend out of the upper surface of the lower mold connecting plate.

[0011] In the aforementioned circular air nozzle welding machine, a fixed plate is installed inside the frame, and several bushings are installed on the fixed plate. Several guide posts are installed at the upper end of the cylinder connecting plate, and the guide posts are slidably disposed within the bushings.

[0012] In the aforementioned circular air nozzle welding machine, each of the upper pull pin positioning mechanisms includes: an upper pull pin, a spring, a nut, and a washer; the heating plate is provided with several through holes, the lower end of the upper pull pin passes through the through holes and extends out of the lower surface of the heating plate, the upper end of the upper pull pin is equipped with the nut and the washer, the spring is sleeved on the upper pull pin, and the two ends of the spring abut against the heating plate and the washer respectively.

[0013] In the aforementioned circular gas nozzle welding machine, a surrounding frame is installed on the lower surface of the upper adjusting plate, and several insulating columns, the upper pull pin positioning mechanism, and the heating plate are all located inside the surrounding frame.

[0014] In the aforementioned circular air nozzle welding machine, the frame is provided with an accommodating space, and the table panel, the lower mold connecting plate, a plurality of lower mold drive cylinders and a plurality of pull studs are all located in the accommodating space.

[0015] In the aforementioned circular air nozzle welding machine, the accommodating space has an opening, and a removable cover plate is installed at the opening.

[0016] The aforementioned circular air nozzle welding machine further includes a control system, which is signal-connected to the drive device, a plurality of upper mold drive cylinders, a plurality of lower mold drive cylinders, and the heating plate.

[0017] The aforementioned circular gas nozzle welding machine further includes: a three-color lamp, which is installed on the upper end of the frame and is connected to the control system signal.

[0018] In the aforementioned circular air nozzle welding machine, the lower end of the frame is equipped with several casters.

[0019] A method of using a circular air nozzle welding machine, comprising the aforementioned circular air nozzle welding machine.

[0020] Step 1: Several upper mold drive cylinders are activated, and the output shafts of several upper mold drive cylinders extend to drive the lower ends of several upper pull pin positioning mechanisms to extend out of the lower surface of the heating plate, and the upper mold is fixed to several upper pull pin positioning mechanisms.

[0021] Step 2: The heating plate is activated, transferring heat to the upper mold;

[0022] Step 3: Several lower mold drive cylinders are activated, and the output shafts of several lower mold drive cylinders extend to drive several pull pins to extend out of the upper surface of the lower mold connecting plate, and the lower mold is fixed to the pull pins;

[0023] Step 4: The driving device is activated, causing the upper mold to gradually approach the lower mold, thereby welding the upper mold and the lower mold together.

[0024] The positive effects of the above technical solution compared with the existing technology are:

[0025] 1. Precise positioning and high installation efficiency: This invention employs an upper pull-pin positioning mechanism and a lower pull-pin driven by cylinders. Through the actions of the upper and lower mold drive cylinders, the pull-pins can be automatically ejected, achieving rapid positioning and installation of the upper and lower molds. Compared to traditional manual alignment, this structure significantly improves the mold installation speed, ensures the concentricity and positional accuracy of the upper and lower molds, thereby ensuring consistent welding quality.

[0026] 2. Stable operation and improved welding quality: A stable guiding mechanism is formed by setting a fixed plate, bushing, and guide pillars connected to the cylinder connecting plate in the frame. When the drive device moves the heating plate, the guide pillars slide in the bushing, effectively restricting the degree of freedom of movement and eliminating shaking. This makes the descent of the heating plate and the upper mold smooth and reliable, ensuring uniform pressure and bonding at the welding interface.

[0027] 3. Excellent protection and high safety factor: A surrounding frame is installed at the lower end of the upper adjustment plate, enclosing the heating plate, insulating pillars, and upper pull-pin positioning mechanism, providing excellent protection. This prevents operators from accidentally touching high-temperature components and protects the core mechanical structure from external interference. Furthermore, the heating plate is mounted via insulating pillars, effectively isolating heat transfer and protecting the drive unit and surrounding components.

[0028] 4. Compact structure and comprehensive protection: The frame has a built-in storage space to house components such as the lower mold and lower mold drive cylinder, which are then sealed with a removable cover. This not only keeps the equipment's appearance clean but also effectively prevents dust from entering critical mechanical parts, meeting the production requirements of a cleanroom. Furthermore, when not in operation, the cover provides excellent protection for the internal precision components. Attached Figure Description

[0029] Figure 1 This is a cross-sectional view of a circular air nozzle welding machine according to the present invention.

[0030] Figure 2 This is a schematic diagram of a circular air nozzle welding machine according to the present invention.

[0031] Figure 3 This is a partial schematic diagram of a circular air nozzle welding machine according to the present invention.

[0032] 1. Frame; 2. Drive unit; 3. Cylinder connecting plate; 4. Adjusting plate; 5. Upper adjusting plate; 6. Heating plate; 7. Upper pull pin positioning mechanism; 8. Upper mold drive cylinder; 9. Table panel; 10. Lower mold connecting plate; 11. Lower mold drive cylinder; 12. Lower pull pin; 13. Bushing; 14. Guide post; 15. Upper pull pin; 16. Spring; 17. Nut; 18. Washer; 19. Enclosing frame; 20. Insulating post; 21. Accommodation space; 22. Cover plate; 23. Casters; 24. Three-color light. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0034] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0035] like Figures 1 to 3 The image shows a preferred embodiment of a circular air nozzle welding machine, which includes: a frame 1, a drive device 2, an upper adjustment plate 5, an upper mold drive cylinder 8, an upper pull pin positioning mechanism 7, a heating plate 6, a lower mold connecting plate 10, a table panel 9, a lower mold drive cylinder 11, and a lower pull pin 12.

[0036] The drive unit 2 is installed on the upper end of the frame 1, and a cylinder connecting plate 3 is installed on the output shaft of the drive cylinder 2. An adjusting plate 4 is installed on the lower end of the cylinder connecting plate 3. The upper adjusting plate 5 is installed on the adjusting plate 4 by several screws, and several upper mold drive cylinders 8 are installed on the upper adjusting plate 5. The heating plate 6 is installed on the upper adjusting plate 5 by several insulating pillars 20, and several upper pull pin positioning mechanisms 7 are movably installed on the heating plate 6. Several upper mold drive cylinders 8 drive the lower ends of several upper pull pin positioning mechanisms 7 to extend out of the lower surface of the heating plate 6. The table panel 9 is installed on the frame 1 by screws, and the lower mold connecting plate 10 is installed on the table panel 9. The lower mold connecting plate 10 faces the heating plate 6. Several lower mold drive cylinders 11 are installed on the lower mold connecting plate 10, and several lower pull pins 12 are installed on the output shaft of several lower mold drive cylinders 11. Several lower mold drive cylinders 11 drive several lower pull pins 12 to extend out of the upper surface of the lower mold connecting plate 10.

[0037] In actual use, the operator sends a signal through the external control system, causing the output shafts of several upper mold drive cylinders 8 to extend, which in turn drives several upper pull pin positioning mechanisms 7 to simultaneously eject the heating plate 6. The upper mold is then aligned with the upper pull pin positioning mechanism 7 for installation. Once the upper mold installation is complete, the heating plate 6 is activated, transferring heat to the upper mold. During the heating process, several lower mold drive cylinders 11 are activated, controlling the lower pull pins 12 to extend from the lower mold connecting plate 10, fixing the lower mold onto the lower pull pins 12. Finally, the drive device 2 is activated, and its output shaft extends, causing the upper mold to move towards the lower mold, thus welding the upper and lower molds together.

[0038] In addition to the above, the present invention also has the following embodiments:

[0039] Furthermore, in a circular gas nozzle welding machine, a fixed plate is installed inside the frame 1, and several bushings 13 are installed on the fixed plate. Several guide posts 14 are installed on the upper end of the cylinder connecting plate 3, and the guide posts 14 are slidably disposed within the bushings 13. Specifically, when the drive device 2 moves, the guide posts 14 move within the bushings 13, making the movement of the adjusting plate 4 more stable, thereby making the movement of the heating plate 6 more stable.

[0040] Furthermore, in a circular air nozzle welding machine, each pull pin positioning mechanism 7 includes: a pull pin 15, a spring 16, a nut 17, and a washer 18. The heating plate 6 has several through holes. The lower end of the pull pin 15 passes through the through holes and extends out of the lower surface of the heating plate 6. The upper end of the pull pin 15 is fitted with a nut 17 and a washer 18. The spring 16 is sleeved on the pull pin 15, and both ends of the spring 16 abut against the heating plate 6 and the washer 18, respectively. Specifically, when the upper mold needs to be fixed, the output shaft of the drive device 2 presses against the pull pin 15, causing the pull pin 15 to extend out of the lower surface of the heating plate 6 under pressure. When the upper mold no longer needs to be fixed, the output shaft of the drive device 2 retracts, the spring 16 recovers its deformation, and the pull pin 15 is driven back to its initial position.

[0041] Furthermore, in a circular gas nozzle welding machine, a surrounding frame 19 is installed on the lower surface of the upper adjustment plate 5. Several insulating posts 20, an upper pull pin positioning mechanism 7, and a heating plate 6 are all located inside the surrounding frame 19. Specifically, the surrounding frame 19 surrounds the heating plate 6 and insulating posts 20, providing protection.

[0042] Furthermore, in a circular air nozzle welding machine, the frame 1 is provided with a receiving space 21, in which the table panel 9, the lower mold connecting plate 10, a plurality of lower mold drive cylinders 11, and a plurality of pull pins 12 are all located. Specifically, the receiving space 21 is provided to accommodate the table panel 9, the lower mold connecting plate 10, the plurality of lower mold drive cylinders 11, and the plurality of pull pins 12 that fix the lower mold.

[0043] Furthermore, a circular air nozzle welding machine is provided, wherein the accommodating space 21 has an opening, and a removable cover plate 22 is installed at the opening. Specifically, when the device is not in use, the cover plate 22 is installed at the opening to protect the table panel 9, the lower mold connecting plate 10, a plurality of lower mold drive cylinders 11, and a plurality of pull pins 12.

[0044] Furthermore, a circular air nozzle welding machine further includes a control system, which is signal-connected to the drive unit 2, a plurality of upper mold drive cylinders 8, a plurality of lower mold drive cylinders 11, and the heating plate 6. The control system starts or stops the drive unit 2, the plurality of upper mold drive cylinders 8, the plurality of lower mold drive cylinders 11, and the heating plate 6.

[0045] Furthermore, a circular gas nozzle welding machine further includes a tri-color lamp 24, which is mounted on the upper end of the frame 1 and is connected to the control system signal. Specifically, the tri-color lamp 24 is used to display the working status of the device.

[0046] Furthermore, a circular air nozzle welding machine is provided, wherein a plurality of casters 23 are mounted on the lower end of the frame 1. Specifically, the casters 23 facilitate the movement of the device.

[0047] A method of using a circular air nozzle welding machine, comprising the aforementioned circular air nozzle welding machine.

[0048] Step 1: Several upper mold drive cylinders 8 are started, and the output shafts of several upper mold drive cylinders 8 extend to drive the lower ends of several upper pull pin positioning mechanisms 7 to extend out of the lower surface of the heating plate 6, and the upper mold is fixed to several upper pull pin positioning mechanisms 7.

[0049] Step 2: The heating plate 6 is activated, transferring heat to the upper mold;

[0050] Step 3: Several lower mold drive cylinders 11 are started, and the output shafts of several lower mold drive cylinders 11 extend to drive several pull pins 12 to extend out of the upper surface of the lower mold connecting plate 10, and the lower mold is fixed to the pull pins 12.

[0051] Step 4: Start the drive device 2, which drives the upper mold to gradually approach the lower mold, and weld the upper mold and the lower mold together.

[0052] The above description is merely a preferred embodiment of the present invention and does not limit the implementation and protection scope of the present invention. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A circular air nozzle welding machine, characterized in that, include: Frame, drive unit, upper adjustment plate, upper mold drive cylinder, upper pull pin positioning mechanism, heating plate, lower mold connecting plate, table panel, lower mold drive cylinder, lower pull pin; The drive device is installed on the upper end of the frame, and a cylinder connecting plate is installed on the output shaft of the drive cylinder, and an adjusting plate is installed on the lower end of the cylinder connecting plate. The upper adjustment plate is mounted on the adjustment plate by a number of screws, and a number of the upper mold drive cylinders are mounted on the upper adjustment plate; The heating plate is mounted on the upper adjusting plate by a number of insulating pillars, and a number of upper pull pin positioning mechanisms are movably mounted on the heating plate. A number of upper mold driving cylinders drive the lower ends of the upper pull pin positioning mechanisms to extend out of the lower surface of the heating plate. The platform is mounted to the frame with screws. The lower mold connecting plate is mounted on the platform and faces the heating plate. A plurality of lower mold drive cylinders are mounted on the lower mold connecting plate. A plurality of pull pins are mounted on the output shafts of the plurality of lower mold drive cylinders. The plurality of lower mold drive cylinders drive the plurality of pull pins to extend out of the upper surface of the lower mold connecting plate.

2. The circular air nozzle welding machine according to claim 1, characterized in that, A fixing plate is installed inside the frame, and several bushings are installed on the fixing plate. Several guide posts are installed on the upper end of the cylinder connecting plate, and the guide posts are slidably disposed within the bushings.

3. A circular air nozzle welding machine according to claim 1, characterized in that, Each of the aforementioned pull-up pin positioning mechanisms includes: a pull-up pin, a spring, a nut, and a washer; the heating plate is provided with several through holes, the lower end of the pull-up pin passes through the through holes and extends out of the lower surface of the heating plate, the upper end of the pull-up pin is fitted with the nut and the washer, the spring is sleeved on the pull-up pin, and the two ends of the spring abut against the heating plate and the washer respectively.

4. A circular air nozzle welding machine according to claim 1, characterized in that, A surrounding frame is installed on the lower surface of the upper adjustment plate, and the insulating posts, the upper pull pin positioning mechanism and the heating plate are all located inside the surrounding frame.

5. A circular air nozzle welding machine according to claim 1, characterized in that, The frame is provided with an accommodating space, and the table panel, the lower mold connecting plate, a plurality of lower mold drive cylinders and a plurality of pull pins are all located in the accommodating space.

6. A circular air nozzle welding machine according to claim 5, characterized in that, The accommodating space has an opening, and a removable cover plate is installed at the opening.

7. A circular air nozzle welding machine according to claim 1, characterized in that, Also includes: The control system is signal-connected to the drive device, a plurality of upper mold drive cylinders, a plurality of lower mold drive cylinders, and the heating plate.

8. A circular air nozzle welding machine according to claim 7, characterized in that, Also includes: The tri-color light is installed on the upper end of the frame and is connected to the control system signal.

9. A circular air nozzle welding machine according to claim 1, characterized in that, The lower end of the frame is equipped with several casters.

10. A method of using a circular air nozzle welding machine, characterized in that, Including a circular air nozzle welding machine as described in any one of claims 1-9, Step 1: Several upper mold drive cylinders are activated, and the output shafts of several upper mold drive cylinders extend to drive the lower ends of several upper pull pin positioning mechanisms to extend out of the lower surface of the heating plate, and the upper mold is fixed to several upper pull pin positioning mechanisms. Step 2: The heating plate is activated, transferring heat to the upper mold; Step 3: Several lower mold drive cylinders are activated, and the output shafts of several lower mold drive cylinders extend to drive several pull pins to extend out of the upper surface of the lower mold connecting plate, and the lower mold is fixed to the pull pins; Step 4: The driving device is activated, causing the upper mold to gradually approach the lower mold, thereby welding the upper mold and the lower mold together.