A pre-preg t-piece forming apparatus

Abstract

This utility model relates to the field of composite material molding technology, and in particular to a prepreg T-shaped workpiece molding equipment, comprising: a fixed bracket; lifting brackets, slidably connected to the fixed bracket, with multiple lifting brackets arranged side-by-side along the length of the fixed bracket; lifting drive components, one end connected to the fixed bracket and the other end connected to the corresponding lifting bracket, the multiple lifting drive components being used to independently drive the lifting of each lifting bracket; and clamping modules, disposed on each lifting bracket, including a lower clamping mold and an upper clamping mold opposite to the lower clamping mold; wherein, the lower clamping mold and the upper clamping mold of each clamping module form complementary arc-shaped curved surfaces on their opposing surfaces, and each clamping module is driven to a set height by the lifting drive components, so that adjacent clamping modules form an arc-shaped molding surface connected end to end. Through the above configuration, one-time molding of arc-shaped prepreg workpieces is achieved, improving product consistency and quality.

Description

Technical Field

[0001] This utility model relates to the field of composite material molding technology, and in particular to a prepreg T-shaped workpiece molding equipment. Background Technology

[0002] Carbon fiber prepreg refers to a semi-cured product in which the fibers have been uniformly impregnated with resin during the manufacturing stage. It consists of carbon fiber reinforcement and a resin system. The carbon fiber reinforcement can be unidirectional tape or fabric, and the resin can be epoxy resin, phenolic resin, thermoplastic resin, etc. Because the fiber-to-resin ratio in carbon fiber prepreg is precisely controllable and it has good processability, allowing for cutting, laying, and stacking, it is widely used in aerospace, high-end automobiles, and sporting goods.

[0003] In existing technologies, prepreg molding is mostly carried out using hot pressing. This involves placing the cut prepreg into the cavity of a rigid heated mold, applying pressure through the heated mold and hydraulic press, and curing it under controlled temperature and pressure cycles. However, for some curved T-shaped workpieces, a secondary shaping method is often used in the specific processing. This involves first curing the prepreg into a sheet in a hot press using a flat mold, and then obtaining the curved workpiece through hot pressing or heated bending.

[0004] However, the forming of the aforementioned curved workpiece requires removing the thermoformed sheet from the mold and then transferring it to the curved mold for bending. Since the product needs to be transferred multiple times, quality defects are likely to occur during the product forming process. Utility Model Content

[0005] In view of at least one of the above technical problems, the present invention provides a prepreg T-shaped workpiece forming equipment, which adopts structural improvements to improve the forming quality of arc-shaped prepreg products.

[0006] According to a first aspect of the present invention, a prepreg T-shaped workpiece forming device is provided, comprising: A fixed bracket is installed extending along a straight line. The lifting bracket is slidably connected to the fixed bracket, and multiple lifting brackets are arranged side by side along the length of the fixed bracket; The lifting drive component has a number corresponding to the number of lifting brackets. One end of the lifting drive component is connected to the fixed bracket, and the other end is connected to the corresponding lifting bracket. Multiple lifting drive components are used to independently drive the lifting of each lifting bracket. A clamping module is disposed on each of the lifting brackets, including a lower clamping mold and an upper clamping mold disposed opposite to the lower clamping mold; In each clamping module, the lower clamping mold and the upper clamping mold of each clamping module form complementary arc-shaped surfaces on their opposing surfaces. Each clamping module is driven to a set height by the lifting drive component, so that two adjacent clamping modules form an arc-shaped surface connected end to end.

[0007] Furthermore, the fixed support includes a truss body, a first slide rail vertically fixed on the truss body, and a first slider slidably connected to the first slide rail, the first slider being fixedly connected to the lifting support.

[0008] Furthermore, the lifting drive includes a lead screw vertically rotatably connected to the truss body, a nut seat screwed onto the lead screw, and a rotation drive for driving the lead screw to rotate, wherein the nut seat is fixedly connected to the lifting bracket.

[0009] Furthermore, the lower clamping mold includes a lower base plate, a first heating plate connected to the lower base plate, and a lower mold bonded to the first heating plate, the lower mold being used to bond with the bottom of the prepreg.

[0010] Furthermore, a sliding assembly is provided between the first heating plate and the lower substrate. The sliding assembly is arranged along the length direction of the first heating plate. The sliding assembly includes a second slide rail and a second slider that is slidably connected to the second slide rail. One of the second slider and the second slide rail is fixedly connected to the first heating plate, and the other is connected to the lower substrate.

[0011] Furthermore, an anchor is connected between the first heating plate and the lower substrate. The anchor is located at the center of the first heating plate along its length, and the sliding component is located on both sides of the anchor.

[0012] Furthermore, the upper clamping mold includes an upper base plate, a second heating plate connected to the upper base plate, and an upper mold that is attached to and connected to the second heating plate. The upper mold and the lower mold are in opposite positions during molding.

[0013] Furthermore, a pressure driving component is also fixed on the upper substrate. The driving end of the pressure driving component passes through the upper substrate and is connected to the second heating plate to drive the second heating plate to apply pressure to the upper mold toward the lower clamping mold.

[0014] Furthermore, the clamping module also includes a flipping drive mechanism, which includes a flipping drive member connected to the lower substrate and connected to the upper substrate for driving the upper substrate to open or close relative to the lower clamping mold.

[0015] Furthermore, the clamping module also includes a lateral drive component fixed on the lifting bracket, the lower base plate and the lifting bracket are slidably disposed relative to each other, and the drive end of the lateral drive component is fixedly connected to the lower base plate.

[0016] The beneficial effects of this utility model are as follows: This utility model uses a lifting drive component set on a fixed bracket to adjust the height of the lifting bracket that can slide relatively in the vertical direction, so that the clamping module set on multiple lifting brackets can form a complete arc forming surface with the ends connected. Compared with the prior art, there is no need to transfer the prepreg, and the arc workpiece can be formed in one step on the forming equipment, thereby improving the consistency and quality of the product. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the prepreg T-shaped workpiece forming equipment in an embodiment of this utility model; Figure 2 As an embodiment of this utility model Figure 1 Schematic diagram of the AA-direction cross-section structure; Figure 3 As an embodiment of this utility model Figure 2 A magnified schematic diagram of the structure at point B in the diagram; Figure 4 This is a partial structural diagram of the fixing bracket in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the connection structure between the lifting bracket and the clamping module in an embodiment of this utility model; Figure 6 This is a schematic diagram of the exploded disassembly structure of the clamping module in an embodiment of this utility model; Figure 7 As an embodiment of this utility model Figure 6 A magnified schematic diagram of the structure at point C.

[0019] Explanation of reference numerals in the attached drawings: 1. Fixed bracket; 11. Truss body; 12. First slide rail; 13. First slider; 2. Lifting bracket; 21. Lead screw; 22. Nut seat; 23. Rotation drive component; 3. Lifting drive component; 4. Clamping module; 41. Lower clamping mold; 411. Lower base plate; 412. First heating plate; 413. Lower mold; 414. Sliding assembly; 415. Anchor; 42. Upper clamping mold; 421. Upper base plate; 422. Second heating plate; 423. Upper mold; 424. Pressurizing drive component; 43. Tilting drive mechanism; 431. Tilting drive component; 44. Lateral drive component. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] like Figures 1 to 7 The prepreg T-shaped workpiece forming equipment shown includes a fixed bracket 1, a lifting bracket 2, a lifting drive component 3, and a clamping module 4, as detailed below. Figure 1 and Figure 2 As shown in the embodiment of this utility model, the fixed bracket 1 extends along a straight line; it should be noted that the fixed bracket 1 has various structural forms, such as being formed by welding profiles or being connected by bolt fastening.

[0024] The lifting bracket 2 is slidably connected to the fixed bracket 1, and multiple lifting brackets 2 are arranged side by side along the length of the fixed bracket 1. In this embodiment of the present invention, the lifting bracket 2 is used to fix the clamping module 4. In this embodiment of the present invention, the number of lifting drive components 3 corresponds to the number of lifting brackets 2. One end of the lifting drive component 3 is connected to the fixed bracket 1, and the other end is connected to the corresponding lifting bracket 2. Multiple lifting drive components 3 are used to independently drive the lifting of each lifting bracket 2. The specific structural forms of the lifting drive component 3 are varied, and its function is to adjust and fix the height position of the lifting bracket 2.

[0025] In an embodiment of this utility model, the clamping module 4 is disposed on each lifting bracket 2, including a lower clamping mold 41 and an upper clamping mold 42 disposed opposite to the lower clamping mold 41; as Figure 2 As shown in some embodiments of this utility model, four lifting brackets 2 are provided on the fixed bracket 1, and four corresponding lifting drive components 3 are used for driving; specifically as follows... Figure 3 As shown in the embodiment of this utility model, complementary arc-shaped surfaces are formed on the opposing surfaces of the lower clamping mold 41 and the upper clamping mold 42 of each clamping module 4. Each clamping module 4 is driven to a set height by the lifting drive 3, so that adjacent clamping modules 4 form an arc-shaped profile connected end to end. In the specific molding process, the height of multiple lifting brackets 2 is first adjusted by the lifting drive 3 so that the clamping modules 4 on them are connected end to end in the length direction to form a complete arc-shaped profile that matches the prepreg. After the prepreg is placed in the lower clamping mold 41, the upper clamping mold 42 presses down to press the prepreg onto the lower clamping mold 41. The prepreg is cured into an arc-shaped workpiece by heating and pressurizing.

[0026] In the above embodiment, the height of the lifting bracket 2, which can slide relative to each other in the vertical direction, is adjusted by the lifting drive 3 provided on the fixed bracket 1, so that the clamping module 4 provided on multiple lifting brackets 2 can form a complete arc forming surface connected end to end. Compared with the prior art, there is no need to transfer the prepreg, and the arc workpiece can be formed in one step on the forming equipment, thereby improving the consistency and quality of the product.

[0027] In some embodiments of this utility model, the specific structure of the fixing bracket 1 is as follows: Figure 4As shown, the fixed support 1 includes a truss body 11, a first slide rail 12 vertically fixed to the truss body 11, and a first slider 13 slidably connected to the first slide rail 12. The first slider 13 is fixedly connected to the lifting support 2. The first slide rail 12 and the first slider 13 improve the stability of the lifting support 2 during lifting. Furthermore, in this embodiment, the lifting drive 3 includes a lead screw 21 vertically rotatably connected to the truss body 11, a nut seat 22 screwed onto the lead screw 21, and a rotation drive 23 for driving the lead screw 21 to rotate. The nut seat 22 is fixedly connected to the lifting support 2. Here, the rotation drive 23 can be a motor working with a reducer to drive the lead screw 21. The cooperation between the lead screw 21 and the nut seat 22 improves the accuracy of driving the height position of the lifting support 2.

[0028] like Figure 5 As shown in the embodiment of this utility model, the lower clamping mold 41 includes a lower base plate 411, a first heating plate 412 connected to the lower base plate 411, and a lower mold 413 bonded to the first heating plate 412. The lower mold 413 is used to bond with the bottom of the prepreg. It should be noted that in the embodiment of this utility model, the function of the first heating plate 412 is to heat the lower mold 413, thereby transferring heat to the prepreg on the lower mold 413 to achieve curing.

[0029] Please continue to refer to Figure 6 and Figure 7 In an embodiment of this invention, a sliding assembly 414 is further provided between the first heating plate 412 and the lower substrate 411. The sliding assembly 414 is arranged along the length direction of the first heating plate 412. The sliding assembly 414 includes a second slide rail and a second slider that is slidably connected to the second slide rail. One of the second slider and the second slide rail is fixedly connected to the first heating plate 412, and the other is connected to the lower substrate 411. By providing the sliding assembly 414, bending deformation of the first heating plate 412 due to thermal expansion during the heating process can be avoided.

[0030] In the embodiments of this utility model, please continue to refer to... Figure 7 To ensure the stability of the heating plate position while allowing for deformation, an anchor 415 is connected between the first heating plate 412 and the lower substrate 411. The anchor 415 is located at the center of the first heating plate 412 along its length, and sliding components 414 are located on both sides of the anchor 415. With this arrangement, as... Figure 7 As shown, the first heating plate 412 and the lower substrate 411 are reliably fixed by the middle anchor 415. When the first heating plate 412 is heated, it is allowed to elongate in the length direction by means of the structure of the sliding component 414, thereby ensuring the stability of the forming surface.

[0031] Please continue to refer to Figure 6 In an embodiment of this utility model, the upper clamping mold 42 includes an upper base plate 421, a second heating plate 422 connected to the upper base plate 421, and an upper mold 423 fitted and connected to the second heating plate 422. The upper mold 423 and the lower mold 413 are in relative positions during molding. It should be noted that the relative positions are with the upper mold 423 facing downwards and the lower mold 413 facing upwards, which together clamp the prepreg. The function of the second heating plate 422 is also to heat the upper surface of the prepreg. There are various specific heating structures. In some embodiments of this utility model, electric heating can be used, or a water channel can be opened inside the heating plate to heat the heating plate through a high-temperature flowing medium.

[0032] Furthermore, in the embodiments of this utility model, please continue to refer to... Figure 6 A pressure-applying drive component 424 is also fixed on the upper substrate 421. The drive end of the pressure-applying drive component 424 passes through the upper substrate and is connected to the second heating plate 422 to drive the second heating plate 422 to move the upper mold 423 towards the lower clamping mold and apply pressure. The pressure-applying drive component 424 can be in the form of a cylinder or a hydraulic cylinder. By applying force to the second heating plate 422 to move the upper mold 423 towards the lower mold 413, the magnitude of the pressure applied by the upper mold 423 towards the lower mold 413 can be controlled.

[0033] Please continue to refer to Figure 5 In an embodiment of this utility model, the clamping module 4 further includes a flipping drive mechanism 43. The flipping drive mechanism 43 includes a flipping drive member 431 connected to the lower substrate 411. The flipping drive member 431 is connected to the upper substrate 421 and is used to drive the upper substrate 421 to open or close relative to the lower clamping mold 41. It should be noted that the flipping drive member 431 can be a flipping method achieved by a motor driving a reducer, or it can be as follows: Figure 5 As shown, the flipping drive 431 is rotatably connected to the lower substrate 411 by means of a connecting rod and a drive member, so as to realize the extension and retraction of the flipping drive 431 to drive the upper substrate 421 to flip. Of course, in this case, the upper substrate 421 is rotatably connected to the pivot seat on the lower substrate 411.

[0034] Furthermore, in embodiments of this utility model, such as Figure 5As shown, the clamping module 4 also includes a transverse drive member 44 fixed on the lifting bracket 2. The lower base plate 411 and the lifting bracket 2 are slidably disposed relative to each other, and the driving end of the transverse drive member 44 is fixedly connected to the lower base plate 411. The transverse drive member 44 enables the entire clamping module 4 to move laterally. In this embodiment of the invention, two fixed brackets 1 are provided in the width direction, and the clamping module 4 is also symmetrically disposed in the width direction. This structural form enables the prepreg to be molded before heating and pressurizing for curing. For example, two L-shaped structures can be formed first, and then the transverse drive member 44 drives the two L-shaped structures to dock, forming a T-shaped structure, etc.

[0035] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A prepreg T-shaped workpiece forming device, characterized in that, include: A fixed bracket is installed extending along a straight line. The lifting bracket is slidably connected to the fixed bracket, and multiple lifting brackets are arranged side by side along the length of the fixed bracket; The lifting drive component has a number corresponding to the number of lifting brackets. One end of the lifting drive component is connected to the fixed bracket, and the other end is connected to the corresponding lifting bracket. Multiple lifting drive components are used to independently drive the lifting of each lifting bracket. A clamping module is disposed on each of the lifting brackets, including a lower clamping mold and an upper clamping mold disposed opposite to the lower clamping mold; In each clamping module, the lower clamping mold and the upper clamping mold of each clamping module form complementary arc-shaped surfaces on their opposing surfaces. Each clamping module is driven to a set height by the lifting drive component, so that two adjacent clamping modules form an arc-shaped surface connected end to end.

2. The prepreg T-shaped workpiece forming equipment according to claim 1, characterized in that, The fixed support includes a truss body, a first slide rail vertically fixed on the truss body, and a first slider slidably connected to the first slide rail. The first slider is fixedly connected to the lifting support.

3. The prepreg T-shaped workpiece forming equipment according to claim 2, characterized in that, The lifting drive includes a lead screw vertically rotatably connected to the truss body, a nut seat screwed onto the lead screw, and a rotation drive for driving the lead screw to rotate. The nut seat is fixedly connected to the lifting bracket.

4. The prepreg T-shaped workpiece forming equipment according to claim 1, characterized in that, The lower clamping mold includes a lower base plate, a first heating plate connected to the lower base plate, and a lower mold that is attached to and connected to the first heating plate. The lower mold is used to attach to the bottom of the prepreg.

5. The prepreg T-shaped workpiece forming equipment according to claim 4, characterized in that, A sliding assembly is also provided between the first heating plate and the lower substrate. The sliding assembly is arranged along the length direction of the first heating plate. The sliding assembly includes a second slide rail and a second slider that can be slidably connected to the second slide rail. One of the second slider and the second slide rail is fixedly connected to the first heating plate, and the other is connected to the lower substrate.

6. The prepreg T-shaped workpiece forming equipment according to claim 5, characterized in that, An anchor is also connected between the first heating plate and the lower substrate. The anchor is located at the center of the first heating plate along its length, and the sliding component is located on both sides of the anchor.

7. The prepreg T-shaped workpiece forming equipment according to claim 4, characterized in that, The upper clamping mold includes an upper base plate, a second heating plate connected to the upper base plate, and an upper mold that is attached to and connected to the second heating plate. The upper mold and the lower mold are in opposite positions during molding.

8. The prepreg T-shaped workpiece forming equipment according to claim 7, characterized in that, A pressure driving component is also fixed on the upper substrate. The driving end of the pressure driving component passes through the upper substrate and is connected to the second heating plate to drive the second heating plate to apply pressure to the upper mold toward the lower clamping mold.

9. The prepreg T-shaped workpiece forming equipment according to claim 8, characterized in that, The clamping module further includes a flipping drive mechanism, which includes a flipping drive member connected to the lower substrate and connected to the upper substrate for driving the upper substrate to open or close relative to the lower clamping mold.

10. The prepreg T-shaped workpiece forming equipment according to claim 9, characterized in that, The clamping module also includes a lateral drive component fixed on the lifting bracket. The lower base plate and the lifting bracket are slidably disposed relative to each other, and the drive end of the lateral drive component is fixedly connected to the lower base plate.

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