A glue control device for wet winding process of gas cylinders

Abstract

This utility model discloses a glue control device for wet winding of gas cylinders, including a support shaft, at least one scraper, a scraper fixing component, and an adjusting crankshaft. The scraper is locked to the support shaft by the scraper fixing component. The scraper has an adjusting groove, which is an elongated oval groove extending in the left-right direction. The support shaft is provided with a shaft hole. The adjusting crankshaft includes a shaft body that rotatably engages with the shaft hole of the support shaft and a transmission part eccentrically disposed on the shaft body. The transmission part is embedded in the adjusting groove of the scraper. When the adjusting crankshaft rotates, the transmission part can drive the scraper to perform linear motion in the back-and-forth direction to adjust the gap between the scraper and the glue roller. This glue control device can achieve glue gap adjustment with only one continuous adjustment, thereby achieving precise glue control. It can effectively control the glue content of wet-wound gas cylinders, avoid resin excess and glue deficiency, improve fiber utilization, increase gas cylinder strength, avoid problems such as glue nodules and bubbles after gas cylinder curing, and improve product quality.

Description

Technical Field

[0001] This utility model relates to the field of gas cylinder production technology, and in particular to a glue control device for the wet winding process of gas cylinders. Background Technology

[0002] Currently, the development and application of new energy sources has become a global trend in energy development. With the lithium battery and photovoltaic sectors nearing saturation, hydrogen energy is gradually emerging as a new direction for energy development, attracting widespread global attention. While hydrogen energy development has achieved some results, progress has been slow and has encountered many challenges. One key challenge is hydrogen storage and transportation technology.

[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, due to its high efficiency, low cost, and simple process, dominates in actual production. However, a thorny issue in wet winding is controlling the amount of resin impregnated on the fibers. 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 development, 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, compromising sealing and structural integrity, thus affecting hydrogen storage capacity. Additionally, internal air cannot escape properly, leading to air bubbles inside the cylinder after curing. These bubbles weaken the cylinder's structural strength, posing a potential safety hazard.

[0006] To address the issue of controlling the amount of resin wrapped around the blade, the existing technology employs the following method: after loosening the locking bolts of the doctor blade, the adjustable bolts at different positions are rotated to equalize the distance between the doctor blade ends and the rubber roller, and then all locking bolts are tightened. Then, the angle of the doctor blade fixing shaft is rotated to achieve the target distance between the doctor blade tip and the rubber roller surface. However, this method has drawbacks: after adjusting the bolts but before tightening the locking bolts, the doctor blade is in a movable and unstable state due to the gap between it and the doctor blade fixing shaft. Subsequently, when tightening the locking bolts at different positions, the position of the doctor blade may change significantly, causing the final distance between the doctor blade ends and the rubber roller to no longer be unequal. This requires readjustment until the requirements are met. This adjustment method requires repeated adjustments, and the combined action of the locking bolts and adjusting bolts is necessary to determine the final gap between the doctor blade and the rubber roller, making the adjustment cumbersome and resulting in low accuracy. Utility Model Content

[0007] To address the aforementioned technical problems, the purpose of this utility model is to provide a glue control device for the wet winding process of gas cylinders. This glue control device allows for precise glue control by adjusting the glue scraping gap with only one continuous adjustment. It effectively controls the glue content of wet-wound gas cylinders, avoiding both excessive and insufficient glue conditions, improving fiber utilization, increasing cylinder strength, and preventing problems such as glue nodules and bubbles after curing, thereby improving product quality.

[0008] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0009] A glue control device for wet winding process of gas cylinders includes a support shaft, at least one scraper, a scraper fixing component, and an adjusting crankshaft;

[0010] The scraper is locked to the support shaft by a scraper fixing member;

[0011] The scraper has an adjustment groove, which is an elongated oval groove extending in the left-right direction;

[0012] The support shaft is provided with a through shaft hole;

[0013] The adjusting crankshaft includes a shaft body that rotatably engages with the shaft hole of the support shaft and a transmission part eccentrically disposed on the shaft body; the transmission part is embedded in the adjusting groove of the scraper;

[0014] When the adjusting crankshaft rotates around its own axis, the transmission unit can drive the scraper to move linearly in the back-and-forth direction to adjust the gap between the scraper and the rubber roller.

[0015] Furthermore, each scraper is fitted with a scraper retainer and an adjusting crankshaft on its left and right sides respectively.

[0016] Furthermore, the shaft hole is a stepped hole, which includes a small-diameter hole at the top and a large-diameter hole at the bottom.

[0017] Furthermore, the crankshaft body includes a small-diameter shaft portion at the top and a large-diameter shaft portion at the bottom. The small-diameter shaft portion mates with a small-diameter hole in the support shaft, and the large-diameter shaft portion mates with a large-diameter hole in the support shaft.

[0018] Furthermore, the depth of the adjustment groove is 1 / 3 to 2 / 3 of the thickness of the scraper, and a hardened treatment layer is provided on the bottom surface of the groove.

[0019] Furthermore, the upper end of the adjusting crankshaft is a hexagonal head.

[0020] Furthermore, the scraper fixing component is a fixing bolt.

[0021] The technical effects of this utility model are as follows:

[0022] This invention, by adjusting the crankshaft and the adjusting groove of the scraper, can precisely control the gap between the scraper and the rubber roller with only one continuous adjustment, solving the problem of low precision caused by the instability of the scraper and the need for repeated adjustments in the traditional adjustment method.

[0023] This invention can effectively control the amount of adhesive in wet-wound gas cylinders, prevent resin overload and insufficient adhesive, fully release fiber properties, improve cylinder strength, reduce glue nodules and bubbles, and enhance the hydrogen storage performance and safety of the gas cylinders.

[0024] This invention allows for one-time adjustment without the need for repeated adjustments, saving adjustment time and labor costs, and improving the production efficiency of gas cylinders.

[0025] In this invention, the crankshaft and the support shaft rotate together, allowing the crankshaft's rotational motion to be directly converted into precise forward and backward linear displacement of the scraper. During adjustment, the scraper is confined to a forward and backward linear motion trajectory that requires a drive, unlike traditional bolt solutions which allow free wobbling. This eliminates any intermediate loosening points, ensuring the scraper remains stable during and after adjustment, reducing gap deviations caused by scraper displacement, and improving adjustment accuracy. Attached Figure Description

[0026] Figure 1 This is a cross-sectional view of the adhesive control device of this utility model.

[0027] Figure 2 for Figure 1 An enlarged schematic diagram of part A in the structure shown.

[0028] Figure 3 This is a front view of the adhesive control device of this utility model in conjunction with the adhesive roller.

[0029] Figure 4 This is a top view of the adhesive control device of this utility model in conjunction with the adhesive roller.

[0030] Figure 5 This is a schematic diagram of the adjusting crankshaft in the adhesive control device of this utility model.

[0031] Figure 6 This is a schematic diagram of the scraper in the adhesive control device of this utility model.

[0032] In the figure, 1: support shaft; 2: scraper; 21: adjustment groove; 3: scraper fixing part; 4: adjustment crankshaft; 41: shaft body part; 411: small diameter shaft part; 412: large diameter shaft part; 42: transmission part; 5: rubber roller. Detailed Implementation

[0033] 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.

[0034] like Figures 1 to 6 A preferred embodiment of a glue control device for wet winding process of gas cylinders is shown, which includes a support shaft 1, at least one scraper 2, a scraper fixing member 3, and an adjusting crankshaft 4.

[0035] The scraper 2 is locked to the support shaft 1 by a scraper fixing member 3, which is a fixing bolt. The scraper 2 has an adjustment groove 21, which is an elongated oval groove extending in the left-right direction. The depth of the adjustment groove 21 is 1 / 3 to 2 / 3 of the scraper thickness, and the bottom surface of the groove is provided with a hardened treatment layer.

[0036] The support shaft 1 is provided with a through shaft hole; the shaft hole is a stepped hole, which includes a small diameter hole at the top and a large diameter hole at the bottom.

[0037] The adjusting crankshaft 4 includes a shaft body portion 41 that rotatably engages with a shaft hole of the support shaft 1, and a transmission portion 42 eccentrically mounted on the shaft body portion 41; the transmission portion 42 is embedded in the adjusting groove 21 of the scraper. The shaft body portion 41 of the adjusting crankshaft 4 includes a small-diameter shaft portion 411 located at the upper part and a large-diameter shaft portion 412 located at the lower part. The small-diameter shaft portion 411 engages with the small-diameter hole of the support shaft 1, and the large-diameter shaft portion 412 engages with the large-diameter hole of the support shaft 1. The upper end of the adjusting crankshaft 4 is a hexagonal head, which can be used with a hexagonal wrench.

[0038] When the crankshaft 4 rotates around its own axis, the transmission unit 42 can drive the scraper 2 to make linear motion in the back and forth direction, so as to adjust the gap between the scraper 2 and the rubber roller 5.

[0039] In this invention, each scraper 2 is fitted with a scraper fixing part 3 and an adjusting crankshaft 4 on its left and right sides, so that the gap between the two ends of the scraper 2 and the rubber roller 5 can be adjusted consistently during adjustment.

[0040] During operation, when adjusting the gap between the scraper 2 and the rubber roller 5, slightly loosen all the scraper fixing parts 3. Then, use a hex wrench to rotate the adjusting crankshaft 4, causing its transmission part 42 to rotate eccentrically within the adjusting groove 21 (elongated oval groove) of the scraper 2. Under the action of the elongated oval groove, the eccentric rotation of the transmission part 42 is converted into linear motion of the scraper 2. By adjusting the direction and speed of the adjusting crankshaft 4, the forward and backward movement direction and speed of the scraper 2 can be achieved, thereby enabling precise adjustment of the gap between the scraper 2 and the rubber roller 5. After adjustment, tighten the scraper fixing parts 3.

[0041] Compared with the prior art, the present invention has the following technical effects:

[0042] This invention, by adjusting the crankshaft 4 and the adjustment groove 21 of the scraper 2, can precisely control the gap between the scraper 2 and the rubber roller 5 with only one continuous adjustment, thus solving the problem of low precision caused by the instability of the scraper and the need for repeated adjustments in the traditional adjustment method.

[0043] This invention can effectively control the amount of adhesive in wet-wound gas cylinders, prevent resin overload and insufficient adhesive, fully release fiber properties, improve cylinder strength, reduce glue nodules and bubbles, and enhance the hydrogen storage performance and safety of the gas cylinders.

[0044] This invention allows for one-time adjustment without the need for repeated adjustments, saving adjustment time and labor costs, and improving the production efficiency of gas cylinders.

[0045] In this invention, the adjusting crankshaft 4 and the support shaft 1 are rotated together. The rotational motion of the adjusting crankshaft 4 can be directly converted into the precise forward and backward linear displacement of the scraper. During the adjustment process, the scraper 2 is restricted to the forward and backward linear motion trajectory that requires driving, and will not wobble freely like in the traditional bolt solution. Therefore, there is no intermediate loosening link, which makes the position of the scraper 2 stable during and after the adjustment process, reduces the gap deviation caused by the scraper displacement, and improves the adjustment accuracy.

[0046] 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.

[0047] 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 glue control device for use in a wet filament winding process for gas cylinders, characterized in that, Includes a support shaft, at least one scraper, a scraper holder, and an adjusting crankshaft; The scraper is locked to the support shaft by a scraper fixing member; The scraper has an adjustment groove, which is an elongated oval groove extending in the left-right direction; The support shaft is provided with a through shaft hole; The adjusting crankshaft includes a shaft body that rotatably engages with the shaft hole of the support shaft and a transmission part eccentrically disposed on the shaft body; the transmission part is embedded in the adjusting groove of the scraper; When the adjusting crankshaft rotates around its own axis, the transmission unit can drive the scraper to move linearly in the back-and-forth direction to adjust the gap between the scraper and the rubber roller.

2. A glue controlling device for use in a wet filament winding process of a gas cylinder as claimed in claim 1, wherein Each scraper is fitted with a scraper retainer and an adjusting crankshaft on its left and right sides, respectively.

3. A glue controlling device for use in a wet filament winding process of gas cylinders as claimed in claim 1, wherein, The shaft hole is a stepped hole, which includes a small-diameter hole at the top and a large-diameter hole at the bottom.

4. A glue controlling device for use in a wet filament winding process of gas cylinders as claimed in claim 3, wherein The crankshaft includes a small-diameter shaft portion at the top and a large-diameter shaft portion at the bottom. The small-diameter shaft portion mates with a small-diameter hole in the support shaft, and the large-diameter shaft portion mates with a large-diameter hole in the support shaft.

5. A glue controlling device for use in a wet filament winding process of gas cylinders as claimed in claim 1, wherein, The depth of the adjustment groove is 1 / 3 to 2 / 3 of the thickness of the scraper, and the bottom surface of the groove is provided with a hardened treatment layer.

6. A glue controlling device for use in a wet filament winding process of gas cylinders as claimed in claim 1, wherein, The upper end of the adjusting crankshaft is a hexagonal head.

7. A glue controlling device for use in a wet filament winding process of gas cylinders as claimed in claim 1, wherein, The scraper fixing component is a fixing bolt.

Images