A precise glue control device for gas cylinder wet winding process
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU AOSHENG COMPOSITE HYDROGEN ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-07-07
Smart Images
Figure CN224465251U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas cylinder production technology, and in particular to a precision adhesive control device for the wet winding process of gas cylinders. Background Technology
[0002] In the context of today's energy transition and sustainable development, hydrogen energy, as a clean and efficient new energy source, has attracted much attention. However, the large-scale application of hydrogen energy faces many challenges, among which the bottleneck of hydrogen energy storage and transportation technology is particularly prominent. Hydrogen energy storage and transportation technology is a crucial link in the hydrogen energy industry chain, directly related to whether hydrogen energy can be safely and efficiently transported and used, thus affecting the development process of the entire hydrogen energy industry.
[0003] Currently, there are four main methods for hydrogen storage: high-pressure gaseous hydrogen storage, cryogenic liquid hydrogen storage, solid-state hydrogen storage, and organic liquid hydrogen storage. Each method has its own characteristics and applicable scenarios. Solid-state hydrogen storage utilizes hydrogen storage alloys or nanomaterials to adsorb and release hydrogen, offering advantages such as high storage density and good safety. However, the technology is not yet fully mature, and the cost is relatively high. Organic liquid hydrogen storage involves chemically reacting hydrogen with organic matter to generate liquid compounds. It can be stored and transported at ambient temperature and pressure, but the storage and release processes require a certain amount of energy input and complex equipment. Cryogenic liquid hydrogen storage requires cooling hydrogen to extremely low temperatures (approximately -253°C) to liquefy it, increasing storage density. This consumes a large amount of energy for refrigeration and places extremely high demands on the insulation performance of the equipment, resulting in high costs.
[0004] In contrast, high-pressure gaseous hydrogen storage technology is relatively mature and widely used. The hydrogen storage devices used in this technology—gas cylinders—are specially designed and manufactured. The production process of composite gas cylinders involves winding resin-impregnated fibers onto an inner lining, followed by curing. This process mainly involves two methods: wet winding and dry winding.
[0005] Wet winding dominates in actual production due to its advantages of high efficiency, low cost, and simple process. However, wet winding also has some obvious drawbacks. For example, the working environment is poor, and glue splattering is common during the winding process, which affects the health of operators and the cleanliness of the work environment. Moreover, the resin content fluctuates greatly during wet winding, which may lead to inconsistent quality of gas cylinders. Glue waste is also quite common, increasing production costs and potentially causing environmental pollution. Furthermore, because the resin content is unstable after winding, manual glue scraping is often required for adjustment, which undoubtedly reduces production efficiency.
[0006] While dry winding avoids the above problems to some extent, it has not yet been widely adopted due to factors such as cost and equipment manufacturing difficulty.
[0007] Precisely controlling the resin content of the fibers during wet winding of gas cylinders is a critical technical challenge. Excessive resin content increases the cylinder's weight, contradicting the design principle of minimizing weight while maintaining performance. Furthermore, excessive resin can interfere with fiber function, reducing cylinder strength and overall mechanical properties. Cured resin nodules not only affect the cylinder's appearance but can also become stress concentration points, shortening its lifespan. Conversely, insufficient resin content can prevent the yarn from fully unwinding, leading to gaps on the cylinder surface and, in severe cases, dry yarn. This compromises the cylinder's sealing performance and structural integrity, affecting its hydrogen storage capacity. Additionally, the inability to expel internal air can result in air bubbles forming inside the cylinder after curing, weakening its structural strength and posing a potential safety hazard.
[0008] Given the current dominance of wet winding as the mainstream process, controlling the adhesive content is crucial. Properly controlling the adhesive content not only significantly improves the performance and appearance of gas cylinders but also effectively prevents adhesive dripping from polluting the working environment and reduces or even eliminates the manual adhesive scraping process, thereby greatly improving production efficiency and lowering costs. This will contribute to the further development of high-pressure gaseous hydrogen storage technology, laying a solid foundation for the large-scale application of hydrogen energy and the prosperity of the entire hydrogen energy industry. Utility Model Content
[0009] To address the aforementioned technical problems, the purpose of this utility model is to provide a precise adhesive control device for the wet winding process of gas cylinders. This device allows for adjustment of the adhesive gap in the scraper, achieving precise adhesive control and effectively managing the adhesive content of the wet-wound gas cylinders. This avoids both excessive and insufficient adhesive, improves fiber utilization, enhances cylinder strength, and prevents issues such as glue nodules and bubbles after curing, thus improving product quality. Simultaneously, it prevents adhesive dripping and environmental pollution, avoids adhesive waste, eliminates the need for manual scraping, improves efficiency, and reduces labor costs.
[0010] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:
[0011] A precision adhesive control device for wet winding process of gas cylinders includes a support rod, at least one scraper mounted on the support rod, a first adjustment mechanism, a second adjustment mechanism, and a control mechanism;
[0012] The first adjustment mechanism includes a coarse adjustment groove and a movable fixing member disposed on the support rod. The movable fixing member passes through the coarse adjustment groove and is connected to the scraper for coarse position adjustment of the scraper.
[0013] The second adjustment mechanism includes an adjustment lifting element and an adjustment drive element; the adjustment lifting element is sequentially inserted into the support rod and the scraper, and its end extending into the scraper has two inclined contact portions; the scraper is provided with a constraint portion that matches the contact portion; the contact portion and the constraint portion cooperate to convert the lifting motion of the adjustment lifting element into the horizontal movement of the scraper; wherein, the two contact portions are symmetrically arranged with respect to the axis of the adjustment lifting element so as to synchronously abut against the constraint portion during the lifting process, thereby restricting the deflection degree of freedom of the scraper; the adjustment drive element is used to drive the lifting motion of the adjustment lifting element;
[0014] The control mechanism includes a cantilever and a drive unit connected to the support rod. The drive unit controls the movement of the support rod through the cantilever so that the scraper reaches the glue control position.
[0015] Furthermore, each scraper has two sets of first and second adjustment mechanisms.
[0016] Furthermore, the coarse adjustment groove is an elongated oval groove, and the movable fixing component is a bolt or a pin.
[0017] Furthermore, the lifting and lowering movement of the adjusting lifting element is driven by rotating the adjusting drive element; the adjusting drive element is a nut or a threaded knob.
[0018] Furthermore, one end of the scraper extending into the adjusting lifting element is a rectangular structure, and the contact part is disposed on the rectangular structure and is a semi-conical protrusion; the two contact parts are obliquely symmetrically arranged with respect to the axis of the adjusting lifting element.
[0019] Furthermore, the constraint part of the scraper is an L-shaped groove, and the bending direction of the L-shaped groove is consistent with the width direction of the scraper.
[0020] Furthermore, the drive unit includes an electric cylinder, a geared motor, and a servo motor connected in sequence, with the electric cylinder connected to the support rod.
[0021] Furthermore, bearings are installed at both ends of the support rod.
[0022] Furthermore, a shim is provided between the movable fixing member and the coarse adjustment groove of the support rod.
[0023] The technical effects of this utility model are as follows:
[0024] This invention uses a coarse adjustment groove and a movable fixing part to coarsely adjust the position of the squeegee, thereby coarsely adjusting the glue passage gap between the squeegee and the printing roller. Then, by adjusting the lifting element and the squeegee, the horizontal movement of the squeegee is achieved, further precisely adjusting the squeegee position and calibrating its parallelism. After one adjustment, once the glue control position is determined, the squeegee can be directly driven to the glue control position each time, through the cooperation of the drive unit and the cantilever, without further adjustment.
[0025] The adjusting lifting element of this utility model cooperates with the constraint part of the scraper through its inclined contact part. While realizing the horizontal movement of the scraper through the lifting motion, it can eliminate the deflection and shaking of the scraper, avoid local rich glue / short glue caused by uneven gap, and achieve precise glue control.
[0026] This invention can be applied to various glue tank structures, enabling precise glue control in the glue tank of a multi-station winding machine, ensuring consistent glue content in the multi-station winding of gas cylinders.
[0027] The adhesive control device and method of this invention can adjust the adhesive gap of the scraper, achieving precise adhesive control. This effectively controls the adhesive content of wet-wound gas cylinders, avoiding situations of excessive resin or insufficient adhesive, improving fiber utilization, increasing gas cylinder strength, and preventing problems such as glue nodules and bubbles after gas cylinder curing, thus improving product quality. It can also control the weight of the composite layer wound on the gas cylinder, thereby precisely controlling the weight of the gas cylinder. At the same time, it can prevent adhesive dripping and environmental pollution, avoid adhesive waste, eliminate the need for manual adhesive scraping, improve efficiency, and reduce labor costs. Attached Figure Description
[0028] Figure 1 This is a structural schematic diagram of the precision adhesive control device for wet winding process of gas cylinders according to this utility model.
[0029] Figure 2 This is a partial cross-sectional view of the precision adhesive control device of this utility model.
[0030] Figure 3 This is a schematic diagram of the scraper in the precision adhesive control device of this utility model.
[0031] Figure 4 This is a cross-sectional view of the scraper in the precision adhesive control device of this utility model.
[0032] Figure 5 This is a schematic diagram of the adjusting lifting element in the precision adhesive control device of this utility model.
[0033] Figure 6 This is a schematic diagram of the support rod in the precision adhesive control device of this utility model.
[0034] In the figure, 1: support rod, 101: coarse adjustment groove; 2: scraper, 201: constraint part; 3: movable fixing part; 4: adjustment lifting element, 401: contact part; 5: adjustment drive element; 6: cantilever; 7: electric cylinder; 8: geared motor; 9: servo motor; 10: shim; 11: bearing. Detailed Implementation
[0035] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0036] This utility model provides a precision adhesive control device for wet winding process of gas cylinders, which includes a support rod 1, at least one scraper 2 installed on the support rod 1, a first adjustment mechanism, a second adjustment mechanism and a control mechanism.
[0037] The first adjustment mechanism includes a coarse adjustment groove 101 and a movable fixing member 3 disposed on the support rod 1. The movable fixing member 3 passes through the coarse adjustment groove 101 and is connected to the scraper 2 for coarse position adjustment of the scraper 2. The coarse adjustment groove 101 is an elongated groove, and the movable fixing member 3 is a bolt or pin. A shim 10 is provided between the movable fixing member 3 and the coarse adjustment groove 101 of the support rod 1 to improve the reliability of the scraper during fixing.
[0038] The second adjustment mechanism includes an adjusting lifting element 4 and an adjusting drive element 5. The adjusting lifting element 4 is sequentially inserted into the support rod 1 and the scraper 2, and its end extending into the scraper 2 has two inclined contact portions 401. The scraper 2 is provided with a constraint portion 201 that matches the contact portion 401. The contact portion 401 cooperates with the constraint portion 201 to convert the lifting motion of the adjusting lifting element into the horizontal movement of the scraper 2. The two contact portions 401 are symmetrically arranged with respect to the axis of the adjusting lifting element 4 so as to synchronously abut against the constraint portion 201 during the lifting process, thereby restricting the deflection degree of freedom of the scraper 2. The lifting motion of the adjusting lifting element 4 is driven by the rotary adjusting drive element 5. The adjusting drive element 5 is a nut or a threaded knob.
[0039] Furthermore, one end of the adjusting lifting element 4 that extends into the scraper 2 has a rectangular structure, and the contact part 401 is disposed on this rectangular structure and is a semi-conical protrusion; the two contact parts 401 are obliquely symmetrically arranged with respect to the axis of the adjusting lifting element 4. The constraint part 201 of the scraper 2 is an L-shaped groove, and the bending direction of the L-shaped groove is consistent with the width direction of the scraper 2.
[0040] Each scraper 2 has two sets of adjustment mechanisms, namely the first adjustment mechanism and the second adjustment mechanism, which are respectively set at both ends of the scraper. Through the cooperation of the first adjustment mechanism and the second adjustment mechanism, the parallelism of the scraper 2 can be calibrated more effectively.
[0041] Bearings 11 are also installed at both ends of the support rod 1. The control mechanism includes a cantilever 6 connected to one end of the support rod 1 and a drive unit. The drive unit controls the movement of the support rod 1 through the cantilever 6 to bring the scraper 2 to the glue control position. Specifically, the drive unit includes an electric cylinder 7, a geared motor 8, and a servo motor 9 connected in sequence. The electric cylinder 7 is connected to the support rod 1. The electric cylinder 7 is controlled by the geared motor 8 and the servo motor 9 to generate displacement, driving the cantilever 6 to move. The geared motor 8 controls the speed to ensure that the electric cylinder accurately transmits the displacement. The servo motor 9 is controlled by a PLC program and linked with the host machine to achieve precise control.
[0042] The precise adhesive control method for wet winding of gas cylinders based on the above-mentioned precise adhesive control device includes the following steps:
[0043] S1, the fixed position of the scraper 2 on the support rod 1 is coarsely adjusted by the cooperation of the movable fixing part 3 and the coarse adjustment groove 101;
[0044] S2, Twist the adjusting drive element 5 to make the adjusting lifting element 4 move up and down. By adjusting the contact part 401 of the lifting element 4 and the constraint part 201 of the scraper 2, the scraper 2 moves horizontally to further adjust the position of the scraper 2 and calibrate the parallelism of the scraper 2.
[0045] S3, the cantilever 6 is driven by the drive unit to move so that the scraper 2 is placed in the glue control position by the support rod 1.
[0046] When performing repetitive work with the same process requirements, the drive unit can be directly controlled through the PLC system, thereby using the cantilever to drive the support rod to move, so as to directly control the scraper to the predetermined glue control position, without the need to adjust steps S1 and S2 again.
[0047] Example
[0048] The precision adhesive control device for wet winding process of gas cylinders in this embodiment includes a support rod 1 and three scrapers 2 mounted on the support rod 1. Each scraper 2 has a first adjustment mechanism and a second adjustment mechanism at both ends. The support rod 1 is connected to the control mechanism.
[0049] In this embodiment, the support rod 1 is integrally machined from alloy steel to ensure its straightness. The front end of the scraper 2 has a cutting edge for scraping adhesive.
[0050] The first adjustment mechanism includes a coarse adjustment groove 101 and a movable fixing member 3 disposed on the support rod 1. The movable fixing member 3 passes through the coarse adjustment groove 101 and is connected to the threaded hole of the scraper 2 for coarse position adjustment of the scraper 2. In this embodiment, the coarse adjustment groove 101 is an elongated groove extending in a direction perpendicular to the axial direction of the support rod, and the movable fixing member 3 is a bolt. A shim 10 is also provided between the movable fixing member 3 and the coarse adjustment groove 101 of the support rod 1 to improve the reliability of the scraper during fixing.
[0051] The second adjustment mechanism includes an adjustment lifting element 4 and an adjustment drive element 5. The adjustment lifting element 4 is sequentially inserted into the support rod 1 and the scraper 2, and its end extending into the scraper 2 has two inclined contact portions 401. In this embodiment, the end of the adjustment lifting element 4 extending into the scraper 2 is a rectangular structure, and the contact portions 401 are disposed on the rectangular structure and are semi-conical protrusions; the two contact portions 401 are obliquely symmetrical with respect to the axis of the adjustment lifting element 4.
[0052] Each scraper 2 has two sets of first and second adjustment mechanisms, forming two adjustment points. This not only enables the parallelism calibration of the scraper at a single station, but also solves the problem of inconsistent glue gap adjustment at the three scraper stations due to insufficient processing accuracy of the glue tank. This allows for calibration and more effective coarse adjustment of the glue gap.
[0053] The scraper 2 is provided with a constraint part 201 that matches the contact part 401. In this embodiment, the constraint part 201 of the scraper 2 is an L-shaped groove, and the bending direction of the L-shaped groove is consistent with the width direction of the scraper 2. The contact part 401 of the adjusting lifting element 4 cooperates with the constraint part 201 of the scraper 2, so that the lifting motion of the adjusting lifting element 4 is converted into the horizontal movement of the scraper (horizontal movement perpendicular to the axial direction of the support rod). Since the two contact parts 401 are obliquely symmetrical with respect to the axis of the adjusting lifting element 4, they can simultaneously abut against the constraint part 201 during the lifting process, restricting the deflection degree of freedom of the scraper 2.
[0054] In this embodiment, the adjusting drive element 5 is a nut, which is connected to the upper end of the adjusting lifting element 4 via a thread. The lifting movement of the adjusting lifting element 4 is driven by the rotary adjusting drive element 5.
[0055] Bearings 11 are also installed at both ends of the support rod 1. The control mechanism includes a cantilever 6 connected to one end of the support rod 1 and a drive unit. The drive unit controls the movement of the support rod 1 through the cantilever 6 to bring the scraper 2 to the glue control position. Specifically, the drive unit includes an electric cylinder 7, a geared motor 8, and a servo motor 9 connected in sequence. The electric cylinder 7 is connected to the support rod 1. The electric cylinder 7 is controlled by the geared motor 8 and the servo motor 9 to drive the cantilever 6. The geared motor 8 controls the speed. The servo motor 9 is controlled by a PLC program and linked with the host machine to achieve precise control.
[0056] The precise adhesive control method for wet winding process of gas cylinders based on the precise adhesive control device of this embodiment includes the following steps:
[0057] S1, the fixed position of the scraper 2 on the support rod 1 is coarsely adjusted by the cooperation of the movable fixing part 3 and the coarse adjustment groove 101;
[0058] S2, turn the adjustment drive element 5 to make the adjustment lifting element 4 move up and down. By adjusting the cooperation between the conical surface of the contact part 401 of the lifting element 4 and the constraint part 201 of the scraper 2, the scraper 2 is moved horizontally to further adjust the position of the scraper 2 and calibrate the parallelism of the scraper 2 relative to the printing roller and the consistency of the glue gap of the three scrapers 2.
[0059] S3. After the scraper position (adhesive control position) is determined, the cantilever 6 is driven by the drive unit to move so that the scraper 2 is placed in the adhesive control position through the support rod 1, and then the adhesive scraping work is carried out in accordance with the process requirements in the winding process.
[0060] This invention uses the coarse adjustment groove 101 and the movable fixing part 3 to coarsely adjust the position of the scraper, thereby coarsely adjusting the glue passage gap between the scraper 2 and the printing roller. Then, by adjusting the lifting element 4 and the scraper 2, the horizontal movement of the scraper 2 is achieved, further precisely adjusting the scraper position and calibrating the parallelism of the scraper. After one adjustment, once the glue control position is determined, the scraper 2 can be directly driven to the glue control position in each operation through the cooperation of the drive unit and the cantilever 6, without the need for further adjustment.
[0061] The adjusting lifting element 4 of this utility model cooperates with the constraint part 201 of the scraper 2 through its inclined contact part 401. While realizing the horizontal movement of the scraper through the lifting motion, it can eliminate the deflection and shaking of the scraper 2, avoid local glue richness / gap caused by uneven gap, and achieve precise glue control.
[0062] This invention can be applied to various glue tank structures, enabling precise glue control in the glue tank of a multi-station winding machine, ensuring consistent glue content in the multi-station winding of gas cylinders.
[0063] The adhesive control device and method of this invention can adjust the adhesive gap of the scraper, achieving precise adhesive control. This effectively controls the adhesive content of wet-wound gas cylinders, avoiding situations of excessive resin or insufficient adhesive, improving fiber utilization, increasing gas cylinder strength, and preventing problems such as glue nodules and bubbles after gas cylinder curing, thus improving product quality. It can also control the weight of the composite layer wound on the gas cylinder, thereby precisely controlling the weight of the gas cylinder. At the same time, it can prevent adhesive dripping and environmental pollution, avoid adhesive waste, eliminate the need for manual adhesive scraping, improve efficiency, and reduce labor costs.
[0064] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.
[0065] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A precision adhesive control device for wet winding process of gas cylinders, characterized in that, It includes a support rod, at least one scraper mounted on the support rod, a first adjustment mechanism, a second adjustment mechanism, and a control mechanism; The first adjustment mechanism includes a coarse adjustment groove and a movable fixing member disposed on the support rod. The movable fixing member passes through the coarse adjustment groove and is connected to the scraper for coarse position adjustment of the scraper. The second adjustment mechanism includes an adjustment lifting element and an adjustment drive element; the adjustment lifting element is sequentially inserted into the support rod and the scraper, and its end extending into the scraper has two inclined contact portions; the scraper is provided with a constraint portion that matches the contact portion; the contact portion and the constraint portion cooperate to convert the lifting motion of the adjustment lifting element into the horizontal movement of the scraper; wherein, the two contact portions are symmetrically arranged with respect to the axis of the adjustment lifting element so as to synchronously abut against the constraint portion during the lifting process, thereby restricting the deflection degree of freedom of the scraper; the adjustment drive element is used to drive the lifting motion of the adjustment lifting element; The control mechanism includes a cantilever and a drive unit connected to the support rod. The drive unit controls the movement of the support rod through the cantilever so that the scraper reaches the glue control position.
2. The precision adhesive control device for wet winding process of gas cylinders according to claim 1, characterized in that, Each scraper has two sets of first and second adjustment mechanisms.
3. The precision adhesive control device for wet winding process of gas cylinders according to claim 1, characterized in that, The coarse adjustment groove is an elongated oval groove, and the movable fixing component is a bolt or a pin.
4. The precision adhesive control device for wet winding process of gas cylinders according to claim 1, characterized in that, The lifting and lowering movement of the adjusting lifting element is driven by rotating the adjusting drive element; the adjusting drive element is a nut or a threaded knob.
5. The precision adhesive control device for wet winding process of gas cylinders according to claim 1, characterized in that, The end of the scraper of the adjusting lifting element is a rectangular structure, and the contact part is provided on the rectangular structure and is a semi-conical protrusion; the two contact parts are obliquely symmetrical with respect to the axis of the adjusting lifting element.
6. The precision adhesive control device for wet winding process of gas cylinders according to claim 1, characterized in that, The constraint part of the scraper is an L-shaped groove, and the bending direction of the L-shaped groove is consistent with the width direction of the scraper.
7. A precision adhesive control device for wet winding process of gas cylinders according to claim 1, characterized in that, The drive unit includes an electric cylinder, a geared motor, and a servo motor connected in sequence, with the electric cylinder connected to the support rod.
8. The precision adhesive control device for wet winding process of gas cylinders according to claim 1, characterized in that, Bearings are also installed at both ends of the support rod.
9. A precision adhesive control device for wet winding process of gas cylinders according to claim 1, characterized in that, A shim is provided between the movable fixing member and the coarse adjustment groove of the support rod.