Multi-layer composite pipeline production equipment

Abstract

The utility model relates to the field of glass fiber pipes, in particular to multi-layer composite pipeline production equipment which comprises a core mold and an outer weaving mechanism arranged on the outer side of the core mold, the outer weaving mechanism is used for machining an outer weaving layer, a winding mechanism is arranged on the inner side of the outer weaving mechanism and used for machining a winding layer, and a resin groove used for containing resin is arranged below the winding mechanism. The winding mechanism is partially immersed in the resin tank; the winding mechanism is arranged inside the outer knitting mechanism, the inner space of the outer knitting mechanism is effectively utilized, and the length of a production line is shortened; the resin tank is arranged below the winding mechanism and used for immersing the glass fibers on the winding mechanism, the immersed glass fibers are directly wound, and resin dripping in the winding process directly enters the resin tank, so that the production line is further shortened, meanwhile, the resin dripping waste can be effectively avoided, the resin utilization rate is improved, and the cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of glass fiber pipes, specifically to multi-layer composite pipe production equipment. Background Technology

[0002] Composite pipes are pipes made of multiple material layers through a specific process. They have excellent performance and broad application prospects. Fiberglass is a common material for making composite pipes. Typically, composite pipes are made using non-metallic pipes with high molecular weight components such as unsaturated polyester resin and epoxy resin as the base material, and then fiberglass is added as a reinforcing material through processes such as winding and braiding. Fiberglass composite pipes not only combine the high strength, high temperature resistance and corrosion resistance of fiberglass, but also have good flexibility and designability.

[0003] Pipe production involves multiple processes such as resin impregnation, winding, and braiding, requiring multiple pieces of equipment. However, the existing production equipment is arranged in a row outside the core mold, which results in an excessively long production line. After the glass fiber is impregnated, it needs to be transported a certain distance before winding, which can easily cause the impregnated resin to drip and be wasted before winding. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, one of the objectives of this utility model is to provide multi-layer composite pipe production equipment to solve the problems of low internal pressure resistance and leakage risk when the water pressure is high in existing pipe production.

[0005] To achieve the above objectives, this utility model provides a multi-layer composite pipe production equipment, including a core mold and an outer braiding mechanism disposed on the outside of the core mold for processing the outer braided layer. A winding mechanism is disposed on the inner side of the outer braiding mechanism for processing the winding layer. A resin tank for holding resin is disposed below the winding mechanism, and the winding mechanism is partially immersed in the resin tank.

[0006] The principle of the technical solution: The mandrel is used to determine the size of the composite tube. The production equipment processes the outer side of the mandrel. The winding mechanism is used to process the winding layer. Then, the outer braiding mechanism braids an outer braided layer on the basis of the winding layer. When the outer braiding mechanism is braiding, it stretches the glass fiber, making it braid in a conical shape with the mandrel as the axis. The winding mechanism is located inside the outer braiding mechanism and winds at the bottom of the cone, effectively utilizing the inner space of the outer braiding mechanism and shortening the production line length. A resin tank is set below the winding mechanism. The resin tank contains resin and is used to immerse the glass fiber on the winding mechanism. The immersed glass fiber is directly wound. The resin dripping during the winding process directly enters the resin tank, further shortening the production line while effectively avoiding resin dripping and waste, improving resin utilization, and saving costs. The resin used is a low-shrinkage thermosetting resin, such as polyester resin, epoxy resin, polyurethane resin, etc. The resin adheres to the glass fiber and fills the gaps between the glass fibers during winding. It can also fill the gaps between the winding layer and the outer braided layer, and tightly bond the two after solidification.

[0007] In a preferred embodiment of the present invention, an extrusion mechanism is further provided on the rear side of the outer braiding mechanism, the extrusion mechanism being used to extrude polyolefin; an inner braiding mechanism is provided on the front side of the outer braiding mechanism for processing the inner braided layer.

[0008] Principle and beneficial effects: The extrusion mechanism is used to coat the outer braided layer with polyolefin. Polyolefin has good corrosion resistance and water resistance, which further enhances the performance of the pipe and prevents leakage. The inner braiding mechanism is used to process an inner braided layer on the mandrel before winding, which improves the composite pipe's resistance to internal extrusion.

[0009] In a preferred embodiment of the present invention, an inclined slide is provided on one side of the resin tank, and a scraper is fixed at the end of the inclined slide for scraping off excess resin.

[0010] Purpose and beneficial effects: The scraper is used to scrape off the resin liquid suspended on the intermediate braided layer, and the inclined slide is used to receive the resin liquid dripping from the intermediate braided layer and reintroduce the collected resin liquid into the resin tank to achieve the purpose of recycling.

[0011] In a preferred embodiment of this utility model, a support block is provided on the side of the resin tank near the inclined slide, an adjusting plate is rotatably provided on the support block, the other end of the adjusting plate is fixedly connected to the inclined slide, and the adjusting plate and the support block are fixed together by a fastener.

[0012] Principle and beneficial effects: The adjusting plate is used to adjust the angle between the inclined slide and the resin tank, thereby controlling the distance between the scraper at the end of the inclined slide and the middle braided layer. It can be flexibly adjusted according to the diameter of the glass fiber. The adjusting plate and the support block are quickly fixed together by the fixing component, and the adjustment is simple and convenient.

[0013] In a preferred embodiment of this utility model, both sides of the scraper are provided with arc-shaped scraping rings, which are hinged to the scraper; after the two arc-shaped scraping rings rotate and come into contact, they are fixed by a connector and combined with the scraper to form a complete ring; a brush is fixed to the inner side of the arc-shaped scraping ring.

[0014] Principle and beneficial effects: When the arc-shaped scraper rings are separated, the inclined slide is not in contact with the core mold, which allows for easy angle adjustment and avoids interference with the formation of the intermediate winding layer; when the arc-shaped scraper rings are connected and fixed by the connector, the two arc-shaped scraper rings and the scraper plate combine to form a complete ring, which wraps around the outside of the core mold. The inner side of the arc-shaped scraper ring is provided with a brush, which allows the resin to be applied more evenly and scrapes off excess resin; moreover, after the ring is formed, the inclined slide can be suspended on the core mold, sharing part of the weight of the inclined slide and improving the resin bearing capacity. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a structural schematic diagram of an embodiment of the multi-layer composite pipe production equipment of this utility model.

[0017] Figure 2 This is an embodiment of the multi-layer composite pipe production equipment of this utility model. Figure 1 A magnified view of detail A.

[0018] Figure 3 This is a front view of an embodiment of the multi-layer composite pipe production equipment of this utility model.

[0019] Figure 4 This is an embodiment of the multi-layer composite pipe production equipment of this utility model. Figure 3 A magnified view of detail B.

[0020] The reference numerals in the accompanying drawings include: 1 inner braiding mechanism, 2 core mold, 3 inner braiding layer, 4 winding mechanism, 5 winding layer, 6 outer braiding mechanism, 7 outer braiding layer, 8 extrusion mechanism, 9 polyolefin tube, 10 resin tank, 11 inclined slide, 12 scraper, 13 support block, 14 adjusting plate, 15 fixing part, 16 arc-shaped scraper ring, 17 connecting part, and 18 brush. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0022] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] In this utility model, "front side" refers to the front end of the production line, and "rear side" refers to the rear end of the production line.

[0026] As attached Figure 1 and attached Figure 2As shown, this utility model provides a multi-layer composite pipe production equipment: from left to right, the mandrel 2 is sequentially equipped with the inner braiding mechanism 1, the outer braiding mechanism 6, and the extrusion mechanism 8. The winding mechanism 4 is arranged inside the outer braiding mechanism 6. A resin tank 10 is arranged below the winding mechanism 4. The resin tank 10 stores resin for soaking glass fibers in resin before winding. Compared with the traditional method of soaking first and then transporting to the winding mechanism 4 for winding, in this utility model, the resin tank 10 is located below the winding mechanism 4. The resin can soak the glass fibers through the rotation of the winding mechanism 4 itself, eliminating the need for a soaking and transportation structure. Winding can start directly after soaking, which can reduce resin dripping during transportation. At the same time, the winding position is located above the resin tank 10, and the resin squeezed and dripping during winding falls directly into the resin tank 10, which can play a role in recycling and reducing waste.

[0027] As attached Figure 3 and attached Figure 4 As shown, in this embodiment, an inclined slide 11 is provided on one side of the resin tank 10. The inclined slide 11 is placed on the resin tank 10, and a scraper 12 is fixed to the end of the inclined slide 11. The scraper 12 is arc-shaped and surrounds the lower part of the core mold 2. A support block 13 is provided below the inclined slide 11. The support block 13 is fixedly connected to the resin tank 10. An adjusting plate 14 is rotatably mounted on the support block 13. The other end of the adjusting plate 14 is fixedly connected to the inclined slide 11. The inclined slide 11 is rotatably connected to the resin tank 10. The adjusting plate 14 and the support block 13 are fixed together by a fastener 15. In this embodiment, the fastener 15 is a combination of bolts and nuts. The scraper 12 is located on the side of the core mold 2 near the outer braided layer 7, and the distance between the scraper 12 and the core mold 2 is between 2 and 5 glass fiber thicknesses. The inclined slide 11 is used to scrape off the resin liquid suspended on the intermediate braided layer. It is used to receive the resin liquid dripping from the intermediate braided layer and reintroduce the collected resin liquid into the resin tank 10 to achieve the purpose of recycling. The scraper 12 is located on the side of the core mold 2 near the outer braided layer 7, which lengthens the distance between it and the resin tank 10. This allows for a certain length of resin to slide down and drip from the winding layer 5, increasing the amount of resin recovered. The distance between the scraper 12 and the intermediate braided layer can be adjusted by the adjusting plate 14, so that the distance between the scraper 12 and the core mold 2 is between 2 and 5 glass fiber thicknesses. This can avoid squeezing the winding layer 5 and scrape off the suspended dripping resin as much as possible. By setting the adjustable scraper 12 and the inclined slide 11, the resin that gradually drips from the intermediate braided layer due to gravity can be recovered, further reducing resin waste, improving resin utilization, and saving costs.

[0028] As attached Figure 4 As shown, in this embodiment, arc-shaped scraping rings 16 are provided on both sides of the scraper 12, and the arc-shaped scraping rings 16 are hinged to the scraper 12; after the two arc-shaped scraping rings 16 rotate and come into contact, they are fixed by the connector 17 and combined with the scraper 12 to form a complete ring; a brush 18 is fixed to the inner side of the arc-shaped scraping ring 16; in this embodiment, the connector 17 adopts a bolt and nut structure, and when the arc-shaped scraping rings 16 are separated, the inclined slide 11 does not contact the core mold 2, which allows for easy adjustment of the angle. This also avoids interfering with the formation of the intermediate winding layer 5. After the arc-shaped scraper ring 16 is connected and fixed by the connector 17, the two arc-shaped scraper rings 16 and the scraper 12 combine to form a complete ring, which wraps around the outside of the core mold 2. The inner side of the arc-shaped scraper ring 16 is provided with a brush 18, which can make the resin application more even and scrape off excess resin. Moreover, after the ring is formed, the inclined slide 11 can be suspended on the core mold 2, sharing part of the weight of the inclined slide 11 and improving the resin bearing capacity.

[0029] The preferred embodiments of this application have been described in detail above with reference to the accompanying drawings. Typical known structures and common knowledge techniques in the preferred embodiments have not been described in detail here. Those skilled in the art can improve and implement the technical solution of this utility model based on the inspiration given in these embodiments and their own capabilities. Some typical known structures, known methods or common knowledge techniques should not be obstacles for those skilled in the art to implement this application.

[0030] The scope of protection claimed in this application shall be determined by the contents of its claims. The contents of the utility model description, specific embodiments, and drawings are used to interpret the claims.

[0031] Within the scope of the technical concept of this application, several modifications can be made to the specific implementation of this application, and these modified implementations should also be considered within the protection scope of this application.

Claims

1. Multi-layer composite pipe production equipment, including a core mold, characterized in that: It also includes an outer braiding mechanism disposed on the outside of the core mold for processing the outer braided layer, a winding mechanism disposed on the inside of the outer braiding mechanism for processing the winding layer, and a resin tank for holding resin disposed below the winding mechanism, with the winding mechanism partially immersed in the resin tank.

2. The multi-layer composite pipe production equipment according to claim 1, characterized in that: It also includes an extrusion mechanism located behind the outer braiding mechanism, the extrusion mechanism being used to extrude polyolefin; and an inner braiding mechanism located in front of the outer braiding mechanism for processing the inner braided layer.

3. The multi-layer composite pipe production equipment according to claim 1, characterized in that: An inclined slide is provided on one side of the resin tank, and a scraper is fixed at the end of the inclined slide to scrape off excess resin.

4. The multi-layer composite pipe production equipment according to claim 3, characterized in that: A support block is provided on the side of the resin tank near the inclined slide. An adjustment plate is rotatably mounted on the support block. The other end of the adjustment plate is fixedly connected to the inclined slide. The adjustment plate and the support block are fixed together by a fastener.

5. The multi-layer composite pipe production equipment according to claim 3, characterized in that: Both sides of the scraper are provided with arc-shaped scraping rings, which are hinged to the scraper. After the two arc-shaped scraping rings rotate and come into contact, they are fixed by a connector and combined with the scraper to form a complete ring. A brush is fixed to the inner side of the arc-shaped scraping ring.

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