Automatic production line for injection molding, welding and detection of new energy hydrogen storage liner
By optimizing the process flow of the hydrogen storage liner production line and utilizing equipment such as a six-axis robot and an infrared heating unit, the problem of liner cutting quality caused by unresolved welding stress was solved, thus achieving high-quality liner production.
Patent Information
- Application Number
- CN202520070728.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-13
AI Technical Summary
In existing technologies, the welding and cutting processes in the production line of hydrogen storage tank liners can easily lead to substandard cutting quality of the liners, and unrelieved stress can cause quality problems.
Design an automated production line for injection molding, welding, and inspection of hydrogen storage liners for new energy applications. The line includes injection molding, infrared welding, cutting, weld inspection, and airtightness inspection stations. It utilizes equipment such as a six-axis robot and infrared heating units to perform welding, stress release, cutting, and inspection before ensuring quality.
By optimizing the process flow, the welding quality of the inner liner was improved, the risk of excessive cutting was reduced, and the quality of the finished inner liner was ensured.
Smart Images
Figure CN223918748U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hydrogen storage component production equipment technical field, specifically, relate to a kind of new energy hydrogen storage inner bag injection molding welding detection automatic production line. BACKGROUND
[0002] Hydrogen energy automobile, because of its zero emission characteristics gradually become the development trend of future automobile, and the hydrogen storage bottle for storing high-pressure hydrogen gas also become one of the essential key components. The current hydrogen storage tank adopts the scheme of plastic inner bag. The production process of plastic inner bag adopts injection molding and welding process for production.
[0003] The inner bag production line in prior art is mostly obtained by injection molding, and then butt welding is carried out on the welding equipment to form a complete inner bag. Meanwhile, cutting and shaping are carried out on the welding position. However, the above production process has a problem, that is, the inner bag is directly cut and shaped after welding, and the stress caused by welding has not been eliminated. When the stress is reduced or eliminated with temperature, the inner bag is easily cut and shaped, which causes quality problems. Based on the above problems, a new inner bag production line is needed to solve the above problems. SUMMARY
[0004] The utility model provides a kind of new energy hydrogen storage inner bag injection molding welding detection automatic production line, solve the problem that the hydrogen storage tank inner bag production line welding and cutting process in prior art can cause inner bag cutting quality unqualified.
[0005] The technical scheme of the utility model is as follows:
[0006] A kind of new energy hydrogen storage inner bag injection molding welding detection automatic production line, the production line includes injection molding station, material removing station, conveying station, infrared welding station, cutting station, weld detection station and gas tightness detection station, which are sequentially arranged.The production line further includes a plurality of six-axis manipulators, which are used to convey the inner bag between stations. The infrared welding station is located before the cutting station. The infrared welding station includes a welding machine, a first welding clamp, a second welding clamp, an infrared heating unit and a shaping cutter. The first welding clamp and the second welding clamp are movably arranged on the welding machine and can move towards or away from each other. The first welding clamp and the second welding clamp each hold a half inner bag. The shaping cutter is movably arranged on the welding machine to cut the end face of the half inner bag. The first welding clamp and the second welding clamp each have a roundness detection unit to detect the roundness of the end face of the half inner bag. The infrared heating unit is arranged between the first welding clamp and the second welding clamp. The first welding clamp and the second welding clamp can rotate synchronously.
[0007] The infrared heating unit is movably arranged on the welding machine table, and is used for adjusting the distance between the infrared heating unit and the semi-inner container welding seam.
[0008] The cutting station comprises a cutting machine table, a first cutting clamp, a second cutting clamp, an air charging unit, a cutting tool and a grinding tool.
[0009] The welding seam detection station comprises a welding seam detection machine table, a rotating clamp and a detection probe.
[0010] The air tightness detection station comprises an air tightness detection machine table, a plurality of cylindrical clamps, a pressurizing unit and a leak detection unit.
[0011] The injection molding station comprises a melt unit, an injection unit and a molding mold.
[0012] The material removing station comprises a cutting machine table, a fixing clamp and a cutting tool.
[0013] The conveying station comprises a conveying machine table and a plurality of conveying rollers.
[0014] The working principle and beneficial effects of the utility model are as follows:
[0015] The utility model discloses a new energy hydrogen storage inner bag injection molding welding detection automatic production line, more specifically, through injection molding station first injection molding half inner bag product of one end opening, then through six -axis mechanical hand transfer to the material removal and put the position, cut the excess material of half inner bag product, then transfer to the conveying station and convey one by one, through six -axis mechanical hand take two half inner bag products and place to infrared welding station, and the first welding clamp and second welding clamp on the welding machine table respectively clamps a half inner bag, and the first welding clamp and second welding clamp can be annular structure through radial dog clamping, and the shaping cutter on the welding machine table can be shaped to the end surface of half inner bag under the drive of mechanical hand, and the shaping process can detect the shaping effect through roundness detection unit, then is that the first welding clamp and second welding clamp are close to each other until two half inner bag ends abut, and the first welding clamp and second welding clamp movement can be realized through motor cooperation rack and pinion structure, of course, it is more than this way, then infrared heating unit is opposite half inner bag abutment gap and carries out heating welding, simultaneously, the first welding clamp and second welding clamp synchronous rotation, thereby making half inner bag end portion realize welding. After welding, through transfer, after releasing welding stress, again through cutting station and cut, after cutting, again enter weld detection station and carry out weld quality detection, finally in airtightness detection station and carry out airtightness detection, after passing, mark and obtain finished product. BRIEF DESCRIPTION OF DRAWINGS
[0016] The utility model will be further explained in detail in connection with the drawings and specific embodiment.
[0017] Fig. 1 It is whole structure schematic diagram of production line in the utility model,
[0018] Fig. 2 It is infrared welding station structure schematic diagram in the utility model,
[0019] Fig. 3 It is cutting station structure schematic diagram in the utility model,
[0020] Fig. 4 It is welding detection station structure schematic diagram in the utility model,
[0021] Fig. 5 It is airtightness detection station structure schematic diagram in the utility model,
[0022] Fig. 6 It is injection molding station structure schematic diagram in the utility model,
[0023] In the diagram: 1. Injection molding station; 2. Material removal station; 3. Conveying station; 4. Infrared welding station; 5. Cutting station; 6. Weld inspection station; 7. Air tightness inspection station; 8. Six-axis robot; 9. Welding machine; 10. First welding fixture; 11. Second welding fixture; 12. Infrared heating unit; 13. Shaping knife; 14. Roundness inspection unit; 15. Cutting machine; 16. First cutting fixture; 17. Second cutting fixture. 18. Cutting fixture, 19. Inflation unit, 20. Cutting blade, 21. Grinding wheel, 22. Weld inspection machine, 23. Rotary fixture, 24. Inspection probe, 25. Air tightness inspection machine, 26. Cylindrical fixture, 27. Pressurization unit, 28. Leak detection unit, 29. Melting unit, 30. Injection molding unit, 31. Molding mold, 32. Cutting machine, 33. Fixing fixture, 34. Cutting blade, 35. Conveyor, 36. Conveyor roller. Detailed Implementation
[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0025] like Figs. 1-6 As shown in the figure, this embodiment proposes an automated production line for injection molding, welding, and inspection of hydrogen storage liners for new energy applications. The production line includes, in sequence, an injection molding station 1, a material removal station 2, a conveying station 3, an infrared welding station 4, a cutting station 5, a weld inspection station 6, and an airtightness inspection station 7. The production line also includes multiple six-axis robotic arms 8, which are used for conveying the liners through the welding stations. The infrared welding station 4 is located before the cutting station 5. The infrared welding station 4 includes a welding machine 9, a first welding fixture 10, a second welding fixture 11, an infrared heating unit 12, and a shaping knife 13. A welding fixture 10 and a second welding fixture 11 are both movably mounted on the welding machine 9 and can move towards or away from each other. Both the first welding fixture 10 and the second welding fixture 11 hold a half-inner liner. The shaping knife 13 is movably mounted on the welding machine 9 for cutting the end face of the half-inner liner. Both the first welding fixture 10 and the second welding fixture 11 are equipped with a roundness detection unit 14 for detecting the roundness of the end face of the half-inner liner. The infrared heating unit 12 is located between the first welding fixture 10 and the second welding fixture 11. The first welding fixture 10 and the second welding fixture 11 can rotate synchronously.
[0026] In this embodiment, a new energy hydrogen storage inner container injection molding welding detection automatic production line is disclosed. Specifically, the injection molding station 1 first injection molds a half inner container product with one end open, then the six-axis manipulator 8 transfers it to the material removal station 2, cuts off the excess material of the half inner container product, and then transfers it to the conveying station 3 for conveying one by one. The six-axis manipulator 8 places two half inner container products on the infrared welding station 4. The first welding clamp 10 and the second welding clamp 11 on the welding machine table 9 clamp one half inner container respectively. The first welding clamp 10 and the second welding clamp 11 can be clamped by radial clamps in a ring structure. The shaping knife 13 on the welding machine table 9 can be driven by the manipulator to shape the end face of the half inner container. The shaping process can be detected by the roundness detection unit 14 to detect the shaping effect. Then the first welding clamp 10 and the second welding clamp 11 move closer to each other until the two half inner container ends abut. The movement of the first welding clamp 10 and the second welding clamp 11 can be achieved by a motor cooperating with a gear and rack structure. Of course, there are more than one way. Then the infrared heating unit 12 heats and welds the abutment gap of the half inner container. At the same time, the first welding clamp 10 and the second welding clamp 11 rotate synchronously, so that the end of the half inner container is welded. After welding, the welding stress is released, and then the cutting station 5 is used for cutting. After cutting, the weld quality detection station 6 is used for weld quality detection. Finally, the air tightness detection station 7 is used for air tightness detection. After passing the detection, the product is marked and obtained.
[0027] The infrared heating unit 12 is movably arranged on the welding machine table 9, used for adjusting the distance between the infrared heating unit 12 and the welding joint of the half inner container.
[0028] In this embodiment, the infrared heating unit 12 can move on the welding machine table 9, which can be achieved by a telescopic device such as a lead screw. The distance between the infrared heating unit 12 and the welding joint can be determined according to the thickness, material and required welding speed of the inner container.
[0029] The cutting station 5 includes a cutting machine table 15, a first cutting clamp 16, a second cutting clamp 17, an inflation unit 18, a cutting knife 19 and a grinding tool 20. The first cutting clamp 16 and the second cutting clamp 17 can move towards or away from each other and are arranged on the cutting machine table 15. The cutting knife 19 and the grinding tool 20 are movably arranged on the cutting machine table 15. The inflation unit 18 is arranged on the cutting machine table 15 and is used for inflating and pressurizing the inner container. The cutting knife 19 and the grinding tool 20 alternately process the welding position of the inner container. The first cutting clamp 16 and the second cutting clamp 17 can rotate synchronously.
[0030] In the cutting station 5, the first cutting clamp 16 and the second cutting clamp 17 clamp the inner container whose welding is completed, and then the inner container is inflated and pressure-kept by the inflation unit 18. The first cutting clamp 16 and the second cutting clamp 17 rotate to drive the inner container to rotate, and then the cutting tool 19 approaches the surface of the welding seam of the inner container. With the rotation of the inner container, the excess material at the welding seam is cut off, and then the cutting position is polished by the grinding tool 20 to make the surface more complete.
[0031] The welding seam detection station 6 comprises a welding seam detection machine table 21, a rotating clamp 22 and a detection probe 23. The detection probe 23 is movably arranged on the welding seam detection machine table 21 and is aligned with the welding seam of the half inner container. The rotating clamp 22 is arranged on the welding seam detection machine table 21.
[0032] In the embodiment, the inner container is clamped by the rotating clamp 22 on the welding seam detection machine table 21, and then the detection probe 23 is driven by the mechanical arm to adhere to the welding seam. The welding quality is detected by ultrasonic.
[0033] The air tightness detection station 7 comprises an air tightness detection machine table 24, a plurality of cylindrical clamps 25, a pressurizing unit 26 and a leak detection unit 27. The plurality of cylindrical clamps 25 are arranged at equal intervals along a straight line on the air tightness detection machine table 24. The pressurizing unit 26 is arranged at the inflation end of the inner container. The leak detection unit 27 is arranged on the air tightness detection machine table 24 and located at one side of the welding seam of the half inner container.
[0034] In the embodiment, a plurality of cylindrical clamps 25 are arranged on the air tightness detection machine table 24. The cylindrical clamps 25 can be two half-circular clamps that can be opened to clamp the inner container. The inner container is inflated and pressurized by the pressurizing unit 26. The leak detection unit 27 is arranged beside the inner container to detect whether the air tightness meets the requirements. The cylindrical clamps 25 can avoid excessive deformation of the inner container under pressure, which affects the quality.
[0035] The injection molding station 1 comprises a melting unit 28, an injection unit 29 and a molding mold 30. One end of the injection unit 29 communicates with the melting unit 28. The other end of the injection unit 29 communicates with the molding mold 30.
[0036] In the embodiment, the raw materials are melted by the melting unit 28. The melted molding raw materials are injected into the molding mold 30 by the injection unit 29 to form the half inner container product.
[0037] The material removing station comprises a cutting machine table 31, a fixed clamp 32 arranged on the cutting machine table 31 and a cutting tool 33 movably arranged on the cutting machine table 31 for cutting the excess material of the half inner container.
[0038] In the embodiment, the half inner liner product molded by injection is fixed by the fixed clamp 32 on the cutting machine 31, and the excess material of the half inner liner is cut by the cutting knife 33 to perform preliminary shaping.
[0039] The conveying station 3 comprises a conveyor table 34 and conveying rollers 35, and the conveying rollers 35 are rotationally arranged on the conveyor table 34 for conveying the half inner liner.
[0040] In the embodiment, the half inner liner after preliminary shaping and material removal is placed on the conveying rollers 35 on the conveyor table 34 for transportation, and a certain number of half inner liner products can be temporarily stored in the conveying station 3 to adjust the rhythm between the stations.
[0041] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. An automated production line for injection molding and welding inspection of hydrogen storage inner liner for new energy applications, characterized in that, The production line includes, in sequence, an injection molding station (1), a material unloading station (2), a conveying station (3), an infrared welding station (4), a cutting station (5), a weld inspection station (6), and an airtightness inspection station (7). The production line also includes multiple six-axis robotic arms (8) used for conveying the inner liner via a station shearing mechanism. The infrared welding station (4) is located before the cutting station (5). The infrared welding station (4) includes a welding machine (9), a first welding fixture (10), a second welding fixture (11), an infrared heating unit (12), and a shaping knife (13). The first welding fixture (10) and the second welding fixture (11) are... The clamps (11) are all movable on the welding machine (9) and can move towards or away from each other. The first welding clamp (10) and the second welding clamp (11) each hold a half inner liner. The shaping knife (13) is movable on the welding machine (9) for cutting the end face of the half inner liner. The first welding clamp (10) and the second welding clamp (11) are each provided with a roundness detection unit (14) for detecting the roundness of the end face of the half inner liner. The infrared heating unit (12) is located between the first welding clamp (10) and the second welding clamp (11). The first welding clamp (10) and the second welding clamp (11) can rotate synchronously.
2. The automated production line for injection molding and welding inspection of new energy hydrogen storage liner according to claim 1, characterized in that, The infrared heating unit (12) is movably mounted on the welding machine (9) to adjust the distance between the infrared heating unit (12) and the welding seam of the semi-inner liner.
3. The automated production line for injection molding and welding inspection of new energy hydrogen storage liner according to claim 1, characterized in that, The cutting station (5) includes a cutting machine (15), a first cutting fixture (16), a second cutting fixture (17), an inflation unit (18), a cutting tool (19), and a grinding wheel (20). The first cutting fixture (16) and the second cutting fixture (17) can be moved towards or away from each other on the cutting machine (15). The cutting tool (19) and the grinding wheel (20) can be moved on the cutting machine (15). The inflation unit (18) is set on the cutting machine (15) and is used to inflate and pressurize the inner liner. The cutting tool (19) and the grinding wheel (20) alternately process the welded joints of the inner liner. The first cutting fixture (16) and the second cutting fixture (17) can rotate synchronously.
4. The automated production line for injection molding and welding inspection of new energy hydrogen storage liner according to claim 1, characterized in that, The weld inspection station (6) includes a weld inspection machine (21), a rotating fixture (22) and an inspection probe (23). The inspection probe (23) is movably mounted on the weld inspection machine (21) and aligned with the weld joint of the semi-inner liner. The rotating fixture (22) is mounted on the weld inspection machine (21).
5. The automated production line for injection molding and welding inspection of new energy hydrogen storage liner according to claim 1, characterized in that, The airtightness testing station (7) includes an airtightness testing machine (24), multiple cylindrical clamps (25), a pressurizing unit (26), and a leak detection unit (27). The multiple cylindrical clamps (25) are arranged at equal intervals along a straight line on the airtightness testing machine (24). The pressurizing unit (26) is located at the inflation end of the inner liner. The leak detection unit (27) is located on the airtightness testing machine (24) and is located on one side of the weld seam of the semi-inner liner.
6. The automated production line for injection molding and welding inspection of new energy hydrogen storage liner according to claim 1, characterized in that, The injection molding station (1) includes a melting unit (28), an injection unit (29), and a molding die (30). One end of the injection unit (29) is connected to the melting unit (28), and the other end of the injection unit (29) is connected to the molding die (30).
7. The automated production line for injection molding and welding inspection of new energy hydrogen storage liner according to claim 1, characterized in that, The material removal station includes a cutting machine table (31), a fixing clamp (32) and a cutting blade (33) set on the cutting machine table (31). The fixing clamp (32) is used to fix the half inner liner, and the cutting blade (33) is movably set on the cutting machine table (31) to cut the remaining material of the half inner liner.
8. The automated production line for injection molding and welding inspection of new energy hydrogen storage liner according to claim 1, characterized in that, The conveying station (3) includes a conveyor platform (34) and conveying rollers (35), and a plurality of the conveying rollers (35) are rotatably mounted on the conveyor platform (34) for conveying the semi-inner liner.