Paving tool and paving method for assembling glass fiber preform

Abstract

The invention relates to a paving tool and a paving method for assembling a glass fiber prefabricated body. U-shaped grooves are formed in corners, where profiling blocks are arranged, of a tool frame, lamp strips are embedded in the grooves, the lamp strips can form a U-shaped area after being electrified, and glass fiber reinforcing strips are paved to a thickening and reinforcing area; a sewing tool is arranged near the profiling block flange, and the three layers of glass fiber reinforcing strips and the glass fiber preformed body flange are sewn together; and a handheld frame is further arranged, penetrates through the interior of the profiling block and is used for rapidly separating and transferring the assembled glass fiber prefabricated body. And the paving method is simple, the appearance quality of the product is high, and the qualification rate of the assembled product is improved.

Description

Technical Field

[0001] The invention relates to a process for assembling a glass fiber preform in the HP-RTM process field, and in particular to a laying tool and a laying method for assembling a glass fiber preform. Background Art

[0002] In the HP-RTM production process, the glass fiber preform assembly process is involved. The preformed glass fiber body and the multi-layer glass fiber reinforcement strips need to be assembled and formed according to the thickness of the molded product before the next glue injection process can be carried out, that is, the laid glass fiber preform is placed in the molding mold for glue injection operation, so that it can be solidified to form a molded product. Therefore, the laying process of the glass fiber preform is particularly important, and the quality of the glass fiber preform laying directly affects the qualified rate of the molded product after glue injection.

[0003] like Figure 1 As shown, the preformed glass fiber preform 9 needs to be thickened and reinforced with multiple layers of glass fiber reinforcement strips at the positions including the corners 91 and the flange edges 92. Generally, the flange edges 92 are firstly sprayed with glue or stapled or plastic nailed to lay the flange glass fiber reinforcement strips on the flange edges 92 of the glass fiber preform 9 to complete the thickening and reinforcement laying; then the corners 91 are firstly sprayed with glue to lay the corner glass fiber reinforcement blocks on the corners 91 of the glass fiber preform 9 to complete the thickening and reinforcement laying.

[0004] However, there are the following three problems in the existing technology: 1. Since the shape of each glass fiber preform is different, the thickening and reinforcement position and shape will change with the shape of the glass fiber preform, making the thickening and reinforcement position and shape complex and diverse. It becomes more difficult to accurately lay the corner glass fiber reinforcement block in the corner reinforcement area. There will be problems such as the glass fiber reinforcement block being off-center or exceeding the thickening and reinforcement boundary. This may cause insufficient resin filling at the corner 91 of the glass fiber preform, exposed glass fiber inside the product, resulting in the scrapping of the molded product and a reduction in the qualified rate of the produced products.

[0005] 2. Due to the large number of fiberglass reinforcement strips in the flange, there are generally two methods for laying the flange edge of the fiberglass preform and the multi-layer fiberglass reinforcement strips on the flange: one laying method relies on manual glue spraying. The amount of glue sprayed in this way cannot be accurately controlled, and the composition of the glue has poor solubility with the molding resin. A small amount of glue sprayed will cause the fiberglass reinforcement strips to fall off, and an excessive amount of glue sprayed will easily cause large-area marks on the molded product and other poor appearance. Another laying method is to use staples or plastic nails to connect and lay the fiberglass preform and the multi-layer fiberglass reinforcement strips. This method may cause the staples or plastic nails to be loose and not firm, or even fall off to other positions in the fiberglass preform, resulting in poor appearance or even scrap of the product after glue injection, which reduces the product qualification rate.

[0006] 3. When assembling a glass fiber preform with a complex structure and a large size, after the glass fiber preform and the multi-layer glass fiber reinforcement strips are laid, the operator can only pull it out from the tooling along the flange edge of the laid glass fiber preform. During the pulling out process, the laid glass fiber preform is easy to fall off and separate, which greatly reduces the product qualification rate and production efficiency.

[0007] Through searching, it is found that there are patents related to the present invention in the prior art, for example: a Chinese utility model patent with authorization announcement number "CN220272675U" and name "A composite material battery box upper cover preform", which discloses a composite material battery box upper cover preform, which relates to the technical field of composite material battery boxes, including a preform body, a first flange reinforcement component, a second flange reinforcement component and a locking component, the preform body includes a main fiber layer and a flange edge arranged at the edge of the main fiber layer, the first flange reinforcement component and the second flange reinforcement component are both locked on the flange edge by a locking component, the first flange reinforcement component and the second flange reinforcement component are both multi-layer structures fixed together, and the first flange reinforcement component and the second flange reinforcement component are in opposite states of stepped layered structures at the joint. The utility model has a reasonable design. The first flange reinforcement component and the second flange reinforcement component are cut by a multi-layer integrated cutting method. The few types of shapes are easy to classify and distinguish, which can achieve a simple and efficient effect of flange reinforcement classification and a neat reinforcement fiber effect. A stapler is used to bind the first flange reinforcement component and the second flange reinforcement component to the preformed body, replacing the traditional spray glue bonding structure, solving the problems of glue spraying out of range, uneven spraying, and difficulty in controlling the amount of glue spraying during operation. The flange reinforcement optimizes the traditional layer-by-layer bonding structure into an overall cutting and binding structure, effectively saving the cost of glue spraying materials and the operation rhythm.

[0008] The above-mentioned Chinese utility model patent relates to the field of preforms for composite material battery upper shells, and a stapler is used to staple the first flange reinforcement component and the second flange reinforcement component to the preform body. However, the second problem in the background technology may exist, namely, the plastic nails may become loose and not firm, or even fall off to other parts of the glass fiber preform, causing the molded product after injection to be scrapped, thereby reducing the product qualification rate.

[0009] In summary, how to design a laying tool and laying method for assembling glass fiber preforms that can accurately locate the reinforcement area, improve the appearance of the assembled products and improve the qualified rate of the assembled products is a primary technical problem that needs to be solved urgently. Summary of the invention

[0010] The technical problem to be solved by the present invention is to provide a laying tool and a laying method for assembling a glass fiber preform in view of the defects existing in the prior art, which can accurately locate the reinforcement area, improve the appearance of the assembled product and increase the qualified rate of the assembled product.

[0011] In order to solve the above technical problems, the technical solution adopted by the present invention is: a laying tool for assembling a glass fiber preform, including a tool frame, a profiling block, and a light strip. The profiling block is connected to the upper end of the tool frame and distributed on the periphery of the tool frame to form a profiling block frame. The inner cavity of the profiling block frame is adapted to the shape of the glass fiber preform. The light strip is connected to the corner of the profiling block frame and is used to divide the pre-designed corner glass fiber reinforcement strip pasting area.

[0012] Furthermore, the profiling block has an arched portion and a horizontal portion; the profiling block is adapted to the shape of the glass fiber preform.

[0013] The arched portion includes a first corner portion, a second corner portion and a straight portion, one end of the straight portion is connected to the first corner portion, and the other end is connected to the second corner portion, there are two arched portions, and the two arched portions are symmetrically fixed to the periphery of the upper end surface of the tooling frame by bolts; the two first corner portions and the two second corner portions of the arched portion are just fixed to the upper portions of the four corners of the upper end surface of the tooling frame, and the two straight portions of the arched portion are fixed to a set of symmetrical opposite sides of the upper end surface of the tooling frame.

[0014] The horizontal parts have two portions and are fixed on another set of opposite sides of the upper end surface of the tooling frame and are symmetrical along the axis of the tooling frame.

[0015] Furthermore, the first corner portion is provided with a first groove, the second corner portion is provided with a second groove, and the first groove and the second groove are both U-shaped grooves with openings facing upwards; The light strip is embedded in both the first groove and the second groove; the first groove and the inner side of the first corner portion form a first U-shaped area, and the second groove and the inner side of the second corner portion form a second U-shaped area.

[0016] Furthermore, the laying tooling for assembling the glass fiber preform also includes a sewing tooling, and the flange glass fiber reinforcement strips are sewn on opposite sides by using the sewing tooling.

[0017] Furthermore, the laying tool for assembling the glass fiber preform also includes a handheld frame, which is placed on the tool frame and passes through the profiling block frame.

[0018] Further, the handheld frame includes a lifting rod and a supporting block, and the lifting rod is in a rectangular parallelepiped shape; The support block is provided with a third groove, which is at the lower end of the support block. The depth of the third groove is consistent with the height of the lifting rod, and the width of the third groove is consistent with the width of the lifting rod. The lifting rod and the support block are connected together by bolts.

[0019] Furthermore, the support block is also provided with a blind hole, a first boss and a second boss; The blind hole is formed on the outer surface of the support block, one side of the first boss is connected to one side of the horizontal portion, and the other side of the first boss is connected to one side of the first corner portion; the second boss is an arc portion and extends toward the inside of the profiling block.

[0020] Furthermore, a paving method using the above-mentioned paving tool is provided, wherein the specific paving method is as follows: S1: First, the colored light strip of the laying tool for assembling the glass fiber preform is powered on; then at least two glass fiber preforms are placed on the tooling frame, and the flange edges of the glass fiber preforms are just placed on the imitation block frame; S2: Then assemble two adjacent glass fiber preforms on the fixture frame, the overlap width between the two adjacent glass fiber preforms should be no less than 25 mm, and lay them at the overlap position; S3: Then, the flange edge of the glass fiber preform is laid, and the three-layer glass fiber flange reinforcement strip is placed in the specified position of the glass fiber preform flange in sequence, and then the three-layer glass fiber reinforcement strip and the glass fiber preform flange are sewn into one with a sewing tool; S4: Finally, the corners are laid, and the two layers of glass fiber reinforcement strips are precisely positioned and laid according to the thickening and reinforcement area of ​​the colored light strips; Furthermore, the specific paving method includes the following steps: S5: After paving is completed, two employees stand at both ends of the tooling to grab the handheld lifting rods and lift the laid fiberglass preform upwards, thereby separating the laid fiberglass preform from the paving tooling and transporting the laid fiberglass preform.

[0021] Furthermore, when the colored light strip is powered on, the colored light strip forms a thickened and reinforced paving area of ​​the glass fiber reinforcement block at the corner of the glass fiber preform corresponding to the first U-shaped area and the second U-shaped area.

[0022] The beneficial effects of the present invention are: (1) The present invention provides a U-shaped groove at the corner of the profiling block on the tooling frame, so that the light strip is embedded in the groove. When the light strip is powered on, it has color, and the colored light strip forms a U-shaped area. When the glass fiber preform is placed on the paving tool, a U-shaped area is formed on the glass fiber preform through which light can pass. The U-shaped area is the thickened and reinforced paving area of ​​the glass fiber reinforcement block at the corner of the glass fiber preform. The glass fiber reinforcement strip can be accurately paved to the thickened and reinforced paving area, which improves the problem of glue spraying exceeding the range that is easy to occur during the operation in the prior art. This arrangement makes the operation process efficient and improves the appearance of the paving.

[0023] (2) In the laying process of the flange edge of the glass fiber preform, compared with the heating laying and spraying laying in the prior art, the present invention is to set a sewing tool near the flange of the imitation block, and set a glass fiber braided wire consistent with the material of the glass fiber preform in the sewing tool, and lay the glass fiber reinforcement strips in order and sew them together with the glass fiber braided wire of the sewing tool and the flange edge of the glass fiber preform, so as to lay the glass fiber reinforcement strips on the flange edge of the glass fiber preform. This sewing tool is easy to operate, the laying method is simple, the appearance quality is high, the cost is saved, and the qualified rate of the assembled products is improved.

[0024] (3) The present invention provides two hand-held racks which penetrate the profiling block and are used to quickly separate and transfer the laid fiberglass preforms. The hand-held racks are easy to operate, thereby improving the assembly efficiency and the qualified rate of the products. This arrangement can improve the prior art in which the operator can only pull the laid fiberglass preforms out of the tooling, and the risk of the laid fiberglass preforms falling off and separating during the pulling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a glass fiber preform in the prior art; Figure 2 It is a schematic diagram of the three-dimensional structure of the laying tool for assembling the glass fiber preform without the sewing tool according to the embodiment of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the paving tool after the handheld frame is removed according to an embodiment of the present invention; Figure 4 for Figure 3 A is a partial enlarged schematic diagram; Figure 5 It is a top view schematic diagram of a laying tool for assembling a glass fiber preform without the sewing tool according to an embodiment of the present invention; Figure 6 is a schematic diagram of the three-dimensional structure of a handheld stand according to an embodiment of the present invention; Figure 7 A schematic structural diagram of a support block according to an embodiment of the present invention; Figure 8A schematic diagram of the three-dimensional structure of a sewing tool according to an embodiment of the present invention; Fig. 9 It is a schematic diagram of the separation of the glass fiber preform after laying and the laying tooling according to an embodiment of the present invention.

[0026] In the figure: 1. tooling frame, 11. upper end surface, 2. profiling block, 21. arched portion, 211. first corner portion, 2111. first groove, 2112. first U-shaped area, 212. second corner portion, 2121. second groove, 2122. second U-shaped area, 213. straight portion 22. horizontal portion, 23. opening portion, 3. hand-held frame, 31. lifting rod, 32. support block, 321. third groove, 322. blind hole, 323. first boss, 324. second boss, 4. light strip, 5. sewing tooling, 6. corner glass fiber reinforcement block, 7. glass fiber preform after laying, 8. flange glass fiber reinforcement strip, 9. glass fiber preform, 91. corner, 92. flange edge, 10. profiling block frame. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", "fixed", and "installed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] To make the purpose, technical solution and advantages of the embodiments of the invention more clear, the following will be combined with the appended drawings of the embodiments of the invention to Figure 1-9 , clearly and completely describe the technical solutions of the embodiments of the invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention. Example

[0031] like Figure 1 and Figure 2 As shown, a paving tool for assembling a glass fiber preform is provided with a tool frame 1, a profiling block 2, and a light strip 4. The profiling block 2 is connected to the upper end surface 11 of the tool frame 1 and is distributed on the periphery of the tool frame 1 to form a profiling block frame 10. The inner cavity of the profiling block frame 10 is adapted to the shape of the glass fiber preform 9. The light strip 4 is connected to the corner of the profiling block frame and is used to divide the paving area of ​​the pre-designed corner glass fiber reinforcement strip 6.

[0032] In order to facilitate observation, the light strip 4 is a colored light strip. When the colored light strip 4 is powered on and lights up, four U-shaped areas will be formed on the inner side of the four corners of the imitation block frame. The glass fiber preform 9 is generally two layers of glass fiber with a certain degree of light transmittance. When the glass fiber preform 9 that needs to be thickened and reinforced is placed on this paving tool, four corresponding U-shaped areas will be formed at the four corners 91. The four U-shaped areas are the paving areas of the glass fiber reinforcement blocks 6 at the corners of the glass fiber preform 9 that need to be thickened and reinforced. The problem that the corner glass fiber reinforcement block 6 cannot be laid in the thickened and reinforced area in the first background technology, and the glass fiber reinforcement strip 8 will be offset or exceed the thickened and reinforced boundary, thereby accurately positioning the paving area of ​​the corner 91 that needs to be thickened and reinforced, reducing the number of scrapped products and improving the product qualification rate.

[0033] For a more intuitive display, Figure 3 As shown, the profiling block 2 includes an arched portion 21, a horizontal portion 22 and an opening portion 23, wherein the arched portion 21, the horizontal portion 22 and the opening portion 23 form a profiling block frame 10 around the tooling frame, and the shape of the profiling block frame 10 is adapted to the shape of the glass fiber preform 9 that needs to be thickened and reinforced, so that the glass fiber preform 9 fits with the laying tooling, thereby making the process of laying the corner glass fiber reinforcement block 6 and the flange glass fiber reinforcement strip 8 of the glass fiber preform 9 on the laying tooling more stable, and avoiding relative sliding between the glass fiber preform 9 and the laying tooling during the laying process, which may cause product laying defects.

[0034] like Figure 3 and Figure 4As shown, the first corner portion 211 is provided with a first groove 2111, and the second corner portion 212 is provided with a second groove 2121. The first groove 211 and the second groove 2121 are both U-shaped grooves with the opening facing upward; the first groove 2111 and the inner side of the first corner portion 211 form a first U-shaped area 2112, and the second groove 2121 and the inner side of the second corner portion 212 form a second U-shaped area 2122; the first groove 2111 and the second groove 2121 are provided in the first corner portion 211 and the second corner portion 212 for installing the light strip 4.

[0035] like Fig. 9 As shown, since the glass fiber preform 9 to be thickened and reinforced has a certain shape, in order to achieve a better paving effect, the glass fiber preform 9 needs to be fitted as closely as possible with the paving tooling, so the profiling block frame 10 needs to be compatible with the shape of the glass fiber preform 9 to be thickened and reinforced.

[0036] like Figure 8 As shown, the device is a sewing tool 5, in which a glass fiber braided wire is installed, and the sewing tool 5 is placed next to the imitation block frame 10. When laying the flange of the glass fiber preform 9, the three-layer flange glass fiber reinforcement strips 8 can be laid in order, and then the three-layer flange glass fiber reinforcement strips 8 and the flange edge 92 of the glass fiber preform 9 are sewn into one with the glass fiber braided wire provided in the sewing tool 5, so as to achieve the reinforcement of the flange edge 92 of the glass fiber preform 9.

[0037] like Figure 3 As shown, the arched portion 21 of the profiling block frame 10 of the paving tool of the present application has a first corner portion 211, a second corner portion 212 and a straight portion 213, one end of the straight portion 213 is connected to the first corner portion 211, and the other end of the straight portion 213 is connected to the second corner portion 212. There are two arched portions 21 of this paving tool, and the two arched portions 21 are fixed to the two edges of the upper end surface of the tool frame 1 by bolts, and are symmetrically fixed to the tool frame 1 along the axis of the tool frame 1; the two first corner portions 211 and the two second corner portions 212 of the arched portion 21 are just fixed to the upper four corners of the upper end surface of the tool frame 1, and the two straight portions 213 of the arched portion 21 of the profiling block 2 are fixed to a symmetrical set of opposite sides of the upper end surface of the tool frame; there are also two horizontal portions 22 of the profiling block frame 10 and they are also fixed to another set of opposite sides of the upper end surface of the tool frame 1 and are arranged relatively. Thus, two pairs of openings 23 facing each other are formed between the arched portion 21 and the horizontal portion 22 . The openings 23 are used to place the hand-held frame 3 , so that the hand-held frame 3 is fixed to the lower end of the glass fiber preform 9 .

[0038] like Figure 6As shown, the handheld frame 3 includes a lifting rod 31 and a support block 32. The lifting rod 31 is a rectangular parallelepiped. The support block 32 is provided with a third groove 321. The third groove 321 is at the lower end of the support block. The depth of the third groove 321 is consistent with the height of the lifting rod 31. The width of the third groove 321 is consistent with the width of the lifting rod 31. The lifting rod 31 and the support block 32 are connected together by bolts. Fig. 9 As shown, when the laying is completed, two employees stand at both ends of the tooling to grab the lifting rod 31 of the handheld frame 3 and lift up the laid fiberglass preform 7, thereby separating the laid fiberglass preform 7 from the laying tooling and transporting the laid fiberglass preform 7.

[0039] like Figure 6 As shown, the support block is provided with a blind hole 322, and the blind hole 322 is opened on the outer surface of the support block 32. The size of the blind hole 322 can fit four fingers of an adult. After the paving is completed, when the hand-held frame 3 is used to lift the lifting rod 31 to lift the laid glass fiber preform 9 and encounter greater resistance, the blind hole 322 can be lifted up by hand to loosen it, and then the hand-held frame 3 is used to lift the lifting rod 31 to separate the laid glass fiber preform 7 from the paving tooling and transport the laid glass fiber preform 7.

[0040] like Figure 7 As shown, the support block 31 is also provided with a first boss 323 and a second boss 324; one side of the first boss 323 is connected to one side of the horizontal portion 22, and the other side of the first boss 323 is connected to one side of the first corner portion 211; thereby, the first protrusion 323 of the support block 3 is clamped between the horizontal portion 22 and the first corner portion 211, thereby fixing the hand-held frame 3 on the tooling frame 1 and the profiling block 2, and the second boss 324 is an arc portion and extends toward the inner side of the profiling block 2, and is flush with the inner side of the profiling block 2, thereby being more closely fitted to the glass fiber preform 9 placed on this paving tooling, and the glass fiber preform 9 will not be damaged due to unevenness.

[0041] The present invention also relates to a paving method using the above-mentioned paving tool, and the specific paving method is: S1: First, the colored light strip 4 of the paving tool for assembling the glass fiber preform 9 is powered on; then at least two two-layer glass fiber preforms 9 are placed on the tooling frame 1, and the flanges of the glass fiber preforms 9 are just placed on the imitation block 2; S2: Then assemble two adjacent layers of glass fiber preforms 9 on the fixture frame 2, the overlap width D between each two layers of glass fiber preforms 9 should be more than 25mm, and glue is sprayed and laid at the overlap position; S3: Then, the flange of the glass fiber preform is laid, and the three-layer glass fiber flange reinforcement strip 8 is placed in the specified position of the glass fiber preform flange in sequence, and then the three-layer glass fiber reinforcement strip and the glass fiber preform flange are sewn into one with a sewing tool; S4: Finally, the corner position of the paving, the two layers of glass fiber reinforcement strips 8 in accordance with the thickening reinforcement area of ​​the colored light strips are precisely positioned and glued and paved; S5: After the paving is completed, the operator stands at both ends of the tooling to grab the lifting rod 31 of the handheld frame 3, and lifts up the paved glass fiber preform 7, thereby separating the paved glass fiber preform 7 from the paving tooling, and transporting the paved glass fiber preform 7.

[0042] When the colored light strip is powered on, the colored light strip forms a thickened and reinforced paving area of ​​the glass fiber reinforcement block 6 corresponding to the corner 91 of the glass fiber preform 9 with the first U-shaped area 2112 and the second U-shaped area 2122, so that the operator can quickly and accurately lock the position where paving is required, saving time while ensuring the appearance quality, and effectively improving the production efficiency and product qualification rate.

[0043] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0044] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Technicians in the relevant technical field may make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the protection scope of the present invention, and the protection scope of the present invention should be defined by the claims.

Claims

1. A laying tool for assembling a glass fiber preform, comprising a tool frame, characterized in that: It also includes a profiling block and a light strip. The profiling block is connected to the upper end of the tooling frame and is distributed on the periphery of the tooling frame to form a profiling block frame. The inner cavity of the profiling block frame is adapted to the shape of the glass fiber preform. The light strip is connected to the corner of the profiling block frame and is used to divide the pre-designed corner glass fiber reinforcement strip pasting area.

2. The laying tool for assembling a glass fiber preform according to claim 1, characterized in that: The profiled block frame has an arched portion, a horizontal portion and an opening portion; The arched portion includes a first corner portion, a second corner portion and a straight portion, one end of the straight portion is connected to the first corner portion, and the other end is connected to the second corner portion, there are two arched portions, and the two arched portions are symmetrically fixed to the periphery of the upper end surface of the tooling frame by bolts; the two first corner portions and the two second corner portions of the arched portion are just fixed to the upper portions of the four corners of the upper end surface of the tooling frame, and the two straight portions of the arched portion are fixed to a set of symmetrical opposite sides of the upper end surface of the tooling frame; The horizontal parts have two portions and are fixed on another set of opposite sides of the upper end surface of the tooling frame and are symmetrical along the axis of the tooling frame.

3. The laying tool for assembling a glass fiber preform according to claim 2, characterized in that: The first corner portion is provided with a first groove, and the second corner portion is provided with a second groove, and the first groove and the second groove are both U-shaped grooves with openings facing upwards; The light strip is embedded in both the first groove and the second groove; the first groove and the inner side of the first corner portion form a first U-shaped area, and the second groove and the inner side of the second corner portion form a second U-shaped area.

4. The laying tool for assembling a glass fiber preform according to claim 1, characterized in that: It also includes sewing tools, which are used to sew glass fiber reinforcement strips on opposite sides.

5. The laying tool for assembling a glass fiber preform according to claim 1, characterized in that: It also includes a handheld frame, which is placed on the tooling frame and penetrates the profiling block frame.

6. The laying tool for assembling a glass fiber preform according to claim 5, characterized in that: The handheld frame comprises a lifting rod and a supporting block, wherein the lifting rod is in a rectangular parallelepiped shape; The support block is provided with a third groove, which is at the lower end of the support block. The depth of the third groove is consistent with the height of the lifting rod, and the width of the third groove is consistent with the width of the lifting rod. The lifting rod and the support block are connected together by bolts.

7. The laying tool for assembling a glass fiber preform according to claim 6, characterized in that: The support block is also provided with a blind hole, a first boss and a second boss; The blind hole is formed on the outer surface of the support block, one side of the first boss is connected to one side of the horizontal portion, and the other side of the first boss is connected to one side of the first corner portion; the second boss is an arc portion and extends toward the inside of the profiling block.

8. A paving method using the paving tool described in any one of 1 to 7 above, characterized in that: The specific paving method is: S1: First, the colored light strip of the laying tool for assembling the glass fiber preform is powered on; then at least two two-layer glass fiber preforms are placed on the tooling frame, and the flanges of the glass fiber preforms are just placed on the imitation blocks; S2: Then assemble two adjacent layers of glass fiber preforms on the fixture frame, the overlap width D between each two layers of glass fiber preforms should be more than 25mm, and lay them at the overlap position; S3: Then, the flange of the glass fiber preform is laid, and three layers of glass fiber flange reinforcement strips are placed in sequence at designated positions on the flange edge of the glass fiber preform, and then the three layers of glass fiber reinforcement strips and the flange edge of the glass fiber preform are sewn together with a sewing tool; S4: Finally, the corners are laid, and the two layers of glass fiber reinforcement strips are precisely positioned and laid according to the thickened reinforcement area of ​​the colored light strips.

9. The laying method for assembling a glass fiber preform according to claim 8, characterized in that: The specific paving steps also include: S5: After the paving is completed, the operator stands at both ends of the tooling to grab the handheld frame lifting rods and lift the laid fiberglass preform upwards, thereby separating the laid fiberglass preform from the paving tooling and transporting the laid fiberglass preform.

10. The laying method for assembling a glass fiber preform according to claim 8, characterized in that: When the colored light strip is powered on, the colored light strip forms a thickened and reinforced paving area of ​​the glass fiber reinforcement block at the corner of the glass fiber preform corresponding to the first U-shaped area and the second U-shaped area.

Images