A fiber composite material hoop assembly forming device

Abstract

This invention proposes a fiber composite hoop molding device, belonging to the field of fiber composite material design and manufacturing. It solves the problems of low manufacturing quality and efficiency in existing fiber composite hoops. The main shaft of this molding device is a stepped shaft, with a large diameter in the middle and smaller diameters at both ends. Several molding units are installed on the outer periphery of the middle shaft and positioned by left and right positioning blocks. The left and right shaping plates of the molding units are fixed by a fixing device. A shaping platform is provided on either the left or right shaping plate, on which a coil is wound. The inner walls of the rings of the left and right shaping plates have keyways that engage with a key installed on the middle shaft. The hoop directly forms a standard sample within the sample preparation area formed by the left and right shaping plates, avoiding secondary processing of the coil and improving the accuracy of coil performance characterization and the efficiency of sample preparation.

Description

Technical Field

[0001] This utility model belongs to the field of fiber composite material design and manufacturing, and in particular relates to a fiber composite material hoop forming device. Background Technology

[0002] In recent years, fiber composite materials have been widely used in chemical storage tanks, pipelines, shafts, and other fields due to their excellent properties of being lightweight and high-strength. Unlike metallic materials, fiber composite materials are anisotropic materials, and the fiber layup method, orientation, molding process, and processing methods all have a significant impact on the performance of the product. Products such as storage tanks, pipelines, and shafts are manufactured using a continuous fiber winding molding process. During use, they undergo a certain degree of cyclic expansion and contraction deformation due to the influence of the working medium and ambient temperature. To ensure the safety of the products, they often need to be fixed by circumferential clamping.

[0003] Traditional metal hoops are isotropic materials, resulting in poor deformation compatibility with anisotropic composite materials. Furthermore, their coefficients of thermal expansion are mismatched under temperature changes. When the working medium and environment of the product undergo stable changes, the incompatibility between the metal hoop and the composite product often leads to damage to the hoop or the product itself. To ensure the widespread application of lightweight, high-strength composite products and improve their safety, there is a demand for thin-walled fiber composite hoops of various sizes.

[0004] Currently, for fiber-wound composite products, only one hoop can be formed at a time when manufacturing thin-walled fiber-wound composite hoops, resulting in low efficiency. Furthermore, secondary processing is often required, posing a risk of damaging the fibers and affecting the overall performance of the hoop. To meet the demands of the widespread use of fiber-wound composite products in various fields and the need for mass production, further requirements are placed on the quality and efficiency of manufacturing thin-walled fiber-wound composite hoops. Utility Model Content

[0005] In view of this, in order to solve the problems of low manufacturing quality and low manufacturing efficiency of fiber composite hoops mentioned in the background art, this utility model proposes a fiber composite hoop assembly device.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a fiber composite material hoop forming device, comprising a main shaft, a left positioning block, a right positioning block, a key, and several forming units. The main shaft is a stepped shaft with a large diameter in the middle section and the same diameter at both ends, which is smaller than the diameter of the middle section. Several forming units are installed on the outer periphery of the middle section and positioned by the left and right positioning blocks.

[0007] The molding unit includes a left shaping plate, a right shaping plate, and a fixing device. The left and right shaping plates are fixed by the fixing device. A shaping platform is provided on either the left or right shaping plate, and a hoop is wound around the shaping platform.

[0008] The left and right shaping plates are rings, and the inner walls of the rings are provided with shaping plate keyways. A key is installed on the central shaft, and the shaping plate keyways and the key are engaged.

[0009] Furthermore, the spindle includes a left thread, a keyway, connecting threaded holes, a central shaft, two end shafts, and a right thread. The two end shafts are located on both sides of the central shaft, and the left and right threads are symmetrically arranged near the central shaft. The central shaft has a keyway arranged longitudinally, and a plurality of connecting threaded holes are arranged in the keyway.

[0010] Furthermore, the keyway is equipped with several keys, with each molding unit cooperating with one key to prevent the molding unit from moving around.

[0011] Furthermore, the key is a flat key with a connecting hole in the middle, the position of which corresponds to the connecting threaded hole of the central shaft, and it is fixed in the keyway by bolts.

[0012] Furthermore, the left positioning block includes two concentric rings integrally formed and a ring connecting part, which is provided with threads inside and engages with the left thread. The two concentric rings have different diameters, and the smaller diameter ring contacts several forming units. The smaller diameter ring is provided with a fixing surface and a stop surface, and the larger diameter ring is provided with multiple force-applying holes on its ring wall. The left positioning block has the same structure as the right positioning block.

[0013] Furthermore, the left shaping plate is a ring, with a keyway on the inner wall of the ring and a boss on the outer periphery of the back side of the inner wall. The ring is evenly provided with threaded holes for the left shaping plate in the circumferential direction, and a shaping platform is provided on the outer periphery of the front side of the ring, with a hoop wrapped around the outer periphery of the shaping platform.

[0014] Furthermore, the right shaping plate is a ring of the same size as the left shaping plate, and a right shaping plate boss is provided on the outer periphery of the back side of the inner wall of the right shaping plate. The ring is provided with right shaping plate connecting holes evenly distributed circumferentially.

[0015] Furthermore, the front of the right shaping plate faces the front of the left shaping plate.

[0016] Furthermore, the fixing surface is a convex ring, the fixing surface of the left positioning block mates with the left shaping plate boss of the molding unit at the left end, and the fixing surface of the right positioning block mates with the right shaping plate boss of the molding unit at the left end.

[0017] Furthermore, the fixing device is a bolt, which passes through the connecting hole of the right shaping plate in sequence and is screwed into the connecting threaded hole of the left shaping plate to fix the left and right shaping plates.

[0018] Compared with the prior art, the beneficial effects of the fiber composite hoop forming device of this utility model are:

[0019] 1. The fiber composite hoop molding device of this utility model forms a molding unit through left and right shaping plates and connecting structure (bolts). Each molding unit can mold one hoop, and multiple molding units can mold multiple hoops at the same time. Moreover, the hoop is directly molded into a standard sample within the sample preparation area formed by the left and right shaping plates, avoiding secondary processing of the hoop, improving the accuracy of hoop performance characterization, and increasing the efficiency of sample preparation.

[0020] 2. This utility model consists of multiple sets of identical shaping plates connected in series, offering strong replaceability and allowing for the molding of different quantities of products according to actual needs. Each set of shaping plates is fixedly assembled with the main shaft via a split key, preventing relative rotation between the shaping plates and the main shaft in the circumferential direction during the winding process. The split key assembly within the keyway is simple, flexible, and highly maintainable, avoiding the assembly difficulties and overall replacement costs associated with integrated keys.

[0021] 3. The molding device described in this utility model is simple to install and easy to disassemble. The molding method is convenient and accurate to implement, which improves the quality of the hoop, saves production time, equipment occupation time and labor costs, and has high production efficiency. Attached Figure Description

[0022] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0023] Figure 1 This is a perspective view of a fiber composite hoop forming device according to the present invention;

[0024] Figure 2 This is a perspective view of the main shaft of a fiber composite hoop forming device according to the present invention;

[0025] Figure 3 The three-dimensional positioning block of the fiber composite hoop forming device described in this utility model Figure 1 ;

[0026] Figure 4 The three-dimensional positioning block of the fiber composite hoop forming device described in this utility model Figure 2 ;

[0027] Figure 5 A perspective view of the key of a fiber composite hoop forming device according to this utility model;

[0028] Figure 6 This is a front perspective view of the left shaping plate of the fiber composite hoop forming device of the present invention;

[0029] Figure 7 This is a perspective view of the back of the left shaping plate of the fiber composite hoop forming device of this utility model;

[0030] Figure 8 This is a front perspective view of the right shaping plate of the fiber composite hoop forming device of the present invention;

[0031] Figure 9 This is a perspective view of the back of the right shaping plate of the fiber composite hoop forming device of this utility model;

[0032] Figure 10 This is a perspective view of the hoop of the fiber composite hoop assembly device described in this utility model;

[0033] Among them, 1-main spindle, 2-left positioning block, 3-left shaping plate, 4-hoop, 5-right shaping plate, 6-bolt, 7-right positioning block, 8-left thread, 9-keyway, 10-key, 11-connecting threaded hole, 12-connecting hole, 13-right thread, 14-middle shaft, 15-shaping platform, 16-left shaping plate connecting threaded hole, 17-left shaping plate boss, 18-left shaping plate keyway, 19-right shaping plate keyway, 20-right shaping plate connecting hole, 21-right shaping plate boss, 22-thread, 23-force-applying hole, 24-fixed surface, 25-stop surface. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present utility model can be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0035] See Figures 1-10 This embodiment describes a fiber composite hoop forming device, comprising a main shaft 1, a left positioning block 2, a right positioning block 7, a key 10, and several forming units. The main shaft 1 is a stepped shaft, with a larger diameter in the middle shaft body 14, and the two end shaft bodies having the same diameter but smaller than the diameter of the middle shaft body 14. Several forming units are installed on the outer periphery of the middle shaft body 14 and are positioned by the left positioning block 2 and the right positioning block 7.

[0036] The forming unit includes a left shaping plate 3, a right shaping plate 5 and a fixing device. The left shaping plate 3 and the right shaping plate 5 are fixed by the fixing device. A shaping platform 15 is provided on the left shaping plate 3 or the right shaping plate 5, and a hoop 4 is wound on the shaping platform 15.

[0037] The main shaft 1 includes a left thread 8, a keyway 9, a connecting threaded hole 11, a central shaft body 14, two end shaft bodies, and a right thread 13. The two end shaft bodies are located on both sides of the central shaft body 14, and the left thread 8 and the right thread 13 are symmetrically arranged near the central shaft body 14. The central shaft body 14 is longitudinally provided with a keyway 9, and a plurality of connecting threaded holes 11 are provided in the keyway 9.

[0038] The left shaping plate 3 and the right shaping plate 5 are ring bodies, and the inner wall of the ring body is provided with shaping plate keyways. A key 10 is installed on the middle shaft 14. The key 10 is a flat key with a connecting hole 12 in the middle, which corresponds to the connecting threaded hole 11 of the middle shaft 14 and is fixed in the keyway 9 by bolts.

[0039] The key 10 can be a number or a single long strip. The keyway of the left shaping plate 3 and the right shaping plate 5 of each forming unit cooperates with the key 10 to prevent the forming unit from moving around.

[0040] The left positioning block 2 includes two concentric rings integrally formed and a ring connecting part. It has a thread 22 inside, which cooperates with the left thread 8. The two concentric rings have different diameters, and the smaller diameter ring contacts several forming units. The smaller diameter ring has a fixing surface 24 and a stop surface 25. The larger diameter ring has multiple force-applying holes 23 on its ring wall. The left positioning block 2 has the same structure as the right positioning block 7.

[0041] The fixing surface 24 is a convex ring. The fixing surface 24 of the left positioning block 2 cooperates with the left shaping plate boss 17 of the molding unit at the left end, and the fixing surface 24 of the right positioning block 7 cooperates with the right shaping plate boss 21 of the molding unit at the left end.

[0042] The stop surface 25 of the left positioning block 2 contacts the left end face of the middle shaft 14, and the left end face of the middle shaft 14 protrudes from the forming unit. Then, the fixing surface 24 of the left positioning block 2 covers the left shaping plate boss 17 of the left end forming unit to fix the forming unit. The fixing surface 24 of the right positioning block 7 covers the right shaping plate boss 21 of the right end forming unit to fix the forming unit. At this time, the stop surface 25 of the right positioning block 7 may not contact the right end face of the middle shaft 14, with the aim of clamping multiple shaping units. There are generally three force holes 23 evenly arranged circumferentially. The positioning blocks are moved and positioned by rotating the lever in the force holes 23.

[0043] The left shaping plate 3 is a ring body. The inner wall of the ring body has a left shaping plate keyway 18. The outer periphery of the back side of the inner wall is provided with a left shaping plate boss 17. The ring body is evenly provided with left shaping plate threaded holes 16 in the circumferential direction. The outer periphery of the front side of the ring body is provided with a shaping platform 15.

[0044] The right shaping plate 5 is a ring of the same size as the left shaping plate 3. The outer periphery of the back side of the inner wall of the right shaping plate 5 is provided with a right shaping plate boss 21, and the ring is provided with right shaping plate connecting holes 20 evenly arranged circumferentially.

[0045] The front of the right shaping plate 5 faces the front of the left shaping plate 3.

[0046] The fixing device is a bolt 6, which passes through the connecting hole 20 of the right shaping plate and is screwed into the connecting threaded hole 16 of the left shaping plate to fix the left shaping plate 3 and the right shaping plate 5.

[0047] The molding method for the above-mentioned fiber composite hoop molding device specifically includes the following steps:

[0048] Step 1: Clean the spindle 1, left positioning block 2, right positioning block 7, key 10, left shaping plate 3, right shaping plate 5 and bolt 6, and apply a layer of release agent;

[0049] Step 2: Assemble the thread 22 of the left positioning block 2 to the left thread 8 of the spindle 1, and tighten it until the stop surface 25 contacts the left end of the middle shaft 14.

[0050] Step 3: Pass the screw through the connecting hole 12 of the key 10 and screw it into the connecting threaded hole 11 to tighten it;

[0051] Step 4: Insert the left shaping plate 3 onto the middle shaft 14 with its back facing the left positioning block 2, and assemble the keyway 18 of the left shaping plate onto the key 10.

[0052] Step 5: Insert the right shaping plate 5 onto the middle shaft 14, with the front of the right shaping plate 5 facing the front of the left shaping plate 3. Assemble the keyway 19 of the right shaping plate onto the key 10. The front of the right shaping plate 5 should contact the shaping table 15. Use bolts 6 to pass through the connecting holes 20 of the right shaping plate in sequence and screw them into the connecting threaded holes 16 of the left shaping plate. Tighten them.

[0053] Step 6: Repeat steps 3-5 to assemble all the shaping units onto the central shaft 14 in sequence;

[0054] Step 7: Assemble the thread 22 of the right positioning block 7 to the right thread 13 of the spindle 1, so that the fixing surface 24 and the end right shaping plate boss 21 are in contact and tighten.

[0055] Step 8: Wrap the hoop sample sequentially within the area formed by the left shaping plate 3, the shaping platform 15 and the right shaping plate 5, until the standard thickness is reached, and then rotate to cure.

[0056] Step 9: Unscrew the right positioning block 7, remove each set of shaping units in sequence, unscrew the bolt 6, demold the hoop 4, and complete the production of multiple hoop samples.

[0057] The embodiments of the present invention disclosed above are merely illustrative of the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.

Claims

1. A fiber composite hoop forming device, characterized in that: It includes a main shaft (1), a left positioning block (2), a right positioning block (7), a key (10), and several forming units. The main shaft (1) is a stepped shaft with a large diameter in the middle shaft body (14) and the same diameter at both ends of the shaft body (14) which is smaller than the diameter of the middle shaft body (14). Several forming units are installed on the outer periphery of the middle shaft body (14) and are positioned by the left positioning block (2) and the right positioning block (7). The molding unit includes a left shaping plate (3), a right shaping plate (5), and a fixing device. The left shaping plate (3) and the right shaping plate (5) are fixed by the fixing device. A shaping platform (15) is provided on the left shaping plate (3) or the right shaping plate (5), and a hoop (4) is wound on the shaping platform (15). The left shaping plate (3) and the right shaping plate (5) are rings, and the inner wall of the ring is provided with shaping plate keyways. A key (10) is installed on the central shaft (14), and the shaping plate keyways cooperate with the key (10).

2. The fiber composite hoop forming device according to claim 1, characterized in that: The main shaft (1) includes a left thread (8), a keyway (9), a connecting threaded hole (11), a central shaft body (14), two end shaft bodies, and a right thread (13). The two end shaft bodies are located on both sides of the central shaft body (14), and the left thread (8) and right thread (13) are symmetrically arranged near the central shaft body (14). The central shaft body (14) is longitudinally provided with a keyway (9), and a plurality of connecting threaded holes (11) are provided in the keyway (9).

3. The fiber composite hoop forming device according to claim 2, characterized in that: A key (10) is installed in the keyway (9).

4. The fiber composite hoop forming device according to claim 3, characterized in that: The key (10) is a flat key with a connecting hole (12) in the middle, which corresponds to the connecting thread hole (11) of the central shaft (14). The key (10) is fixed in the keyway (9) by bolts.

5. The fiber composite hoop forming device according to claim 2, characterized in that: The left positioning block (2) includes two concentric rings integrally formed and a ring connecting part. It has a thread (22) inside, which cooperates with the left thread (8). The two concentric rings have different diameters, and the smaller diameter ring contacts several forming units. The smaller diameter ring has a fixed surface (24) and a stop surface (25). The stop surface (25) contacts the left end of the central shaft (14). The larger diameter ring has several force-applying holes (23) on its ring wall. The left positioning block (2) has the same structure as the right positioning block (7).

6. The fiber composite hoop forming device according to claim 5, characterized in that: The left shaping plate (3) has a left shaping plate boss (17) on the outer periphery of the back side of the inner wall of the ring, and the ring body is uniformly provided with left shaping plate connecting threaded holes (16) on the circumferential direction, and the ring body is provided with a shaping platform (15) on the outer periphery of the front side.

7. The fiber composite hoop forming device according to claim 6, characterized in that: The right shaping plate (5) is a ring of the same size as the left shaping plate (3). The outer periphery of the back side of the inner wall is provided with a right shaping plate boss (21), and the ring is provided with right shaping plate connecting holes (20) evenly arranged in the circumferential direction.

8. The fiber composite hoop forming device according to claim 7, characterized in that: The front of the right shaping plate (5) faces the front of the left shaping plate (3).

9. The fiber composite hoop forming device according to claim 7, characterized in that: The fixing surface (24) is a convex ring. The fixing surface (24) of the left positioning block (2) is engaged with the left shaping plate boss (17) of the molding unit at the left end. The fixing surface (24) of the right positioning block (7) is engaged with the right shaping plate boss (21) of the molding unit at the left end.

10. The fiber composite hoop forming device according to claim 6, characterized in that: The fixing device is a bolt (6), which passes through the connecting hole (20) of the right shaping plate in sequence and is screwed into the connecting threaded hole (16) of the left shaping plate to fix the left shaping plate (3) and the right shaping plate (5).

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