An adjustable angle in-situ polymerization thermoplastic composite material injection pultrusion production equipment

Abstract

The application discloses an adjustable-angle in-situ polymerization thermoplastic composite material injection-pulling extrusion production equipment, which comprises a base material part for preparing and supplying a base material, a reinforcing part for supplying a reinforcing material, a forming part for making the base material and the reinforcing material into a composite material, and an adjusting part arranged at the bottom of the forming part and used for angle adjustment, and the base material part and the reinforcing part are connected with the forming part. By adjusting the working angle of the forming part, the base material injected into the injection cavity cannot leak from the preforming device, so that the waste of the base material is reduced, production discontinuity caused by leakage and solidification of the base material is avoided, the utilization rate of the base material and the coverage rate of the reinforcing material are improved, the produced profile has high specific strength, specific modulus, corrosion resistance and electrical insulation, and the production cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of composite material molding technology, and more specifically, to an adjustable-angle in-situ polymerization thermoplastic composite material injection pultrusion production equipment. Background Technology

[0002] In the preparation process of thermoplastic composites through injection molding and pultrusion, high temperature and high pressure are required to reduce the viscosity of the matrix material and improve its fluidity, so as to achieve the purpose of compounding with the reinforcing material. However, at both the macroscopic and microscopic scales, it is difficult for the matrix material to completely wet the reinforcing material, resulting in increased product porosity and even large-scale defects such as missing resin. These defects determine the low performance of thermoplastic composites from the source, limiting their large-scale industrial application. In-situ polymerization of thermoplastic composites is a special method for molding thermoplastic composites. This method can use low-viscosity thermoplastic resin monomers or prepolymers to complete the wetting and compounding of the reinforcing material. Using this method to prepare composite materials can reduce the molding difficulty, improve the molding quality, and increase the fiber content.

[0003] In-situ polymerized thermoplastic composites possess characteristics such as low viscosity, high flowability, and solidification at room temperature. However, in existing in-situ polymerized thermoplastic composite injection pultrusion production equipment, these composites are prone to leakage from the preforming opening on the injection mold, resulting in material waste. Furthermore, the composite material continuously solidifies and accumulates at the preforming opening at room temperature, increasing the resistance of the reinforcing material through the mold and potentially causing production halts on the pultrusion line.

[0004] Therefore, it is necessary to propose an adjustable-angle in-situ polymerized thermoplastic composite injection pultrusion production equipment to at least partially solve the problem that in-situ polymerized thermoplastic composites are prone to leakage from the preforming port on the injection mold, resulting in waste of composite materials. Summary of the Invention

[0005] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. The summary section of this invention is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To at least partially solve the above problems, the present invention provides an adjustable-angle in-situ polymerization thermoplastic composite injection pultrusion production equipment, comprising: a substrate section for preparing and supplying matrix material, a reinforcement section for supplying reinforcement material, a molding section for forming the matrix material and reinforcement material into a composite material, and an adjustment section disposed at the bottom of the molding section for angle adjustment, wherein the substrate section and the reinforcement section are both connected to the molding section.

[0007] Preferably, the substrate section comprises at least two premixing tanks for heating, stirring, and vacuuming, at least two storage tanks for storing different substrate raw materials, and a conveying section connecting the storage tanks to the molding section. The premixing tanks are connected to the storage tanks, and the conveying section is provided with a mixing head. Each storage tank is connected to the molding section through the mixing head.

[0008] Preferably, the reinforcing section consists of a material rack for placing reinforcing material and a guide device disposed between the molding section and the material rack, wherein the reinforcing material enters the molding section via the guide device.

[0009] Preferably, the forming section comprises a forming device disposed at one end of the frame, a traction device disposed between the forming device and the cutting device, and a mixing head disposed on the forming device, the adjusting section being disposed at the bottom of the frame, and the forming device being located on the side of the frame near the reinforcing section.

[0010] Preferably, the molding device comprises a pre-forming device disposed at one end of the injection cavity, and a heating section, a transition section, and a cooling section disposed at the other end of the injection cavity. The mixing head is disposed at the top of the injection cavity. The reinforcing material enters the injection cavity via the pre-forming device, and the matrix material enters the injection cavity via the mixing head. After the matrix material and the reinforcing material are formed in the injection cavity, they pass through the heating section, the transition section, and the cooling section in sequence and then leave the molding device. After being sent to the cutting device by the traction device, they are cut to form the end product.

[0011] Preferably, the adjustment unit consists of a front-end device and a rear-end device disposed on the ground. The front-end device is movably connected to the bottom surface of the frame near the reinforcement section, and the rear-end device is movably connected to the bottom surface of the frame away from the reinforcement section. The drive device is selectively disposed on the front-end device or on the rear-end device.

[0012] Preferably, the front-end device comprises a front-end fixed frame connected to the ground, at least one lifting device disposed on the front-end fixed frame, and a front-end support member disposed on the bottom surface of the frame. Both the front-end fixed frame and the front-end support member are movably connected to the lifting device. The driving device is disposed on the front-end fixed frame and connected to the lifting device. The rear-end device comprises a rear-end fixed frame connected to the ground and a rear-end support member disposed on the bottom surface of the frame. The rear-end support member is movably connected to the rear-end fixed frame.

[0013] Preferably, when the frame is placed horizontally, the frame rests on at least four auxiliary support members set on the top of the front fixed frame. The lifting device consists of an adjusting rod with one end movably connected to the front support member and the other end axially connected to the front fixed frame, and a lifting block located inside the front fixed frame and connected to the driving device through a transmission device. The top of the lifting block abuts against the adjusting rod.

[0014] Preferably, the end of the adjusting rod is provided with a roller that is movably connected to the front support member. The roller is connected to the adjusting rod shaft. When the frame is adjusted at an angle, the roller at the end of the adjusting rod abuts against the front support member. When the frame is placed horizontally, the roller at the end of the adjusting rod separates from the front support member. The front support member consists of two U-shaped clamps arranged opposite each other and a limiting block movably connected to the U-shaped clamps through a rotating shaft. The opening direction of the U-shaped clamps is away from the bottom surface of the frame, and the two U-shaped clamps are connected by a connecting plate.

[0015] Preferably, the rear support consists of a mounting block connected to the bottom surface of the frame and side wheels disposed at both ends of the mounting block. The rear fixed frame is provided with at least four auxiliary wheels, which are arranged in pairs. Each pair of auxiliary wheels is movably connected to a side wheel. One of the side wheels is provided with a gear disk, which is connected to a drive device disposed on the rear fixed frame.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] This invention ensures that the matrix material injected into the injection cavity does not leak out from the preforming device by adjusting the working angle of the molding part, thereby reducing the waste of matrix material, avoiding production discontinuity caused by matrix material leakage and solidification, improving the utilization rate of matrix material and the coverage of reinforcing material, so that the produced profile has high specific strength, specific modulus, corrosion resistance and electrical insulation, and reducing production costs.

[0018] The adjustable-angle in-situ polymerization thermoplastic composite injection pultrusion production equipment of the present invention, other advantages, objectives and features of the present invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of the present invention. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0020] Figure 1This is a schematic diagram of the adjustable-angle in-situ polymerization thermoplastic composite material injection pultrusion production equipment described in this invention.

[0021] Figure 2 This is a schematic diagram of the molding section in the adjustable-angle in-situ polymerization thermoplastic composite material injection pultrusion production equipment described in this invention.

[0022] Figure 3 This is a cross-sectional view of the injection cavity in this invention.

[0023] Figure 4 This is a schematic diagram of the injection cavity angle adjustment in this invention.

[0024] Figure 5 This is a schematic diagram of the structure of the first embodiment of the front-end device of the adjustment section of the present invention.

[0025] Figure 6 This is a schematic diagram (left view) showing the position of the front-end device in the first embodiment of the adjustment unit front-end device of the present invention.

[0026] Figure 7 This is a schematic diagram showing the position of the front-end device of the adjustment section of the present invention in a second embodiment.

[0027] Figure 8 This is a partial structural schematic diagram of the second embodiment of the front-end device of the adjustment section of the present invention.

[0028] Figure 9 This is a cross-sectional schematic diagram of the second embodiment of the front end device of the adjustment section of the present invention.

[0029] Figure 10 This is a cross-sectional schematic diagram of the fourth embodiment of the front end device of the adjustment section of the present invention.

[0030] Figure 11 for Figure 10 A schematic diagram of the front-end fixing frame and lifting device.

[0031] Figure 12 for Figure 10 A schematic diagram of the front-end support component.

[0032] Figure 13 for Figure 12 A partial structural decomposition diagram.

[0033] Figure 14 This is a schematic diagram of the front-end support member being clamped and limited in the horizontal direction in the fourth embodiment of the front-end device of the adjustment section of the present invention.

[0034] Figure 15 This is a schematic diagram of the structure of the second embodiment of the back-end device of the adjustment section of the present invention.

[0035] In the diagram: 100 Matrix material, 200 Reinforcing material, 1 Substrate section, 11 Premix tank, 12 Storage tank, 2 Reinforcing section, 21 Material rack, 22 Guiding device, 3 Molding section, 31 Frame, 32 Molding device, 321 Preforming device, 322 Injection cavity, 3221 Impregnation tank, 3222 Reinforcing material after molding, 323 Heating section, 324 Transition section, 325 Cooling section, 33 Traction device, 34 Cutting device, 4 Adjustment section, 5 Conveying section, 51 Mixing head, 6, 7, 8 Front-end equipment, 61, 71, 81 Front-end fixing frame, 62, 72, 82 Lifting device, 63, 73, 83 Front-end support component, a, b, c Drive device, 831 U-shaped clamp, 832 Rotating shaft, 833 Limiting block, 834 Connecting plate, 84 Adjusting rod, 85 Lifting block, 86 Roller, 9 Rear-end equipment, 91a, 91b Rear-end fixing frame, 92a, 92b Rear-end support component, 93 Mounting block, 94 Side wheel, 95 Auxiliary wheel, 96 Gear disk. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0037] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0038] like Figures 1-15 As shown, the present invention provides an adjustable angle in-situ polymerization thermoplastic composite injection pultrusion production equipment, comprising: a substrate part 1 for preparing and supplying matrix material, a reinforcing part 2 for supplying reinforcing material, a molding part 3 for forming the matrix material and reinforcing material into a composite material, and an adjustment part 4 disposed at the bottom of the molding part 3 for angle adjustment, wherein the substrate part 1 and the reinforcing part 2 are both connected to the molding part 3.

[0039] The substrate section 1 consists of at least two premixing tanks 11 for heating, stirring and vacuuming, at least two storage tanks 12 for storing different substrate raw materials, and a conveying section 5 connecting the storage tanks 12 to the molding section 3. The premixing tanks 11 are connected to the storage tanks 12. The conveying section 5 is provided with a mixing head 51. Each storage tank 12 is connected to the molding section 3 through the mixing head 51.

[0040] The reinforcing section 2 consists of a material rack 21 for placing reinforcing material and a guide device 22 disposed between the molding section 3 and the material rack 21. The reinforcing material enters the molding section 3 via the guide device 22.

[0041] The forming part 3 consists of a forming device 32 disposed at one end of the frame 31, a traction device 33 disposed between the forming device 32 and the cutting device 34, and a mixing head 51 disposed on the forming device 32. The adjusting part 4 is disposed at the bottom of the frame 31, and the forming device 32 is located on the side of the frame 31 near the reinforcing part 2.

[0042] The molding device 32 consists of a pre-forming device 321 disposed at one end of the injection cavity 322, and a heating section 323, a transition section 324, and a cooling section 325 disposed at the other end of the injection cavity 322. The mixing head 51 is disposed at the top of the injection cavity 322. The reinforcing material enters the injection cavity 322 via the pre-forming device 321, and the matrix material enters the injection cavity 322 via the mixing head 51. After the matrix material and the reinforcing material are formed in the injection cavity 322, they pass through the heating section 323, the transition section 324, and the cooling section 325 in sequence and then leave the molding device 32. After being sent to the cutting device 34 by the traction device 33 for cutting, the final product is formed.

[0043] Here we use linear reinforcing material wound on yarn bobbins as an example to illustrate the specific processing steps. It should be noted that the linear reinforcing material is only an example and does not limit the shape of the reinforcing material. Depending on the production content, the reinforcing material can also be rolled or bundled, as long as it is convenient to transport the reinforcing material. Similarly, the reinforcing material can be linear, sheet-like, or a composite shape woven together.

[0044] S1: Angle Adjustment; Based on different raw materials and finished product shapes, the appropriate angle of the molding section 3 is determined through theoretical calculations and experimental data. This mainly involves determining the product height (opening height of the injection cavity 322), the opening position of the mixing head 51 on the injection cavity 322, and coordinating with the raw material injection speed and product traction speed. This determines the angle between the molding section 3 and the horizontal plane (tanα = h / H, where h is the thickness of the inner mold cavity of the molding section 3; H is the distance from the injection port to the preforming port; when other conditions remain unchanged, measuring h and H is a simplified method to calculate α) and the angle between the pultrusion line and the ground. By determining the appropriate angle of the molding section 3, the working angle of the equipment is finally adjusted through the adjusting section 4 to align the pultrusion line with this angle. After both angles are aligned, the height of the preforming device 321 is higher than the height of the injection cavity 322. This ensures that the matrix material injected into the injection cavity 322 will not leak out from the preforming device 321 (leaving a certain margin).

[0045] S2: Yarn arrangement; The reinforcing material on the yarn frame is drawn out from the yarn bobbin and arranged neatly and evenly through the guide device 22. The guide device 22 can be used as follows: Figure 1The dual roller assembly shown can also be any commercially available product or existing technology that can adjust the entry position of the reinforcing material into the preforming device 321 without affecting the conveying of the reinforcing material.

[0046] S3: Preforming; The reinforcing material (such as glass fiber roving, continuous strand mat, etc.) is continuously transported. The reinforcing material is first pre-shaped by the preforming device 321 through the traction device 33, and then the formed reinforcing material 3222 is transported into the injection cavity 322.

[0047] S4: Impregnation; soluble prepolymer and catalyst, soluble prepolymer and curing agent are added to two premixing tanks 11 respectively, and after heating, stirring and vacuuming, they are transferred to the two storage tanks 12 as needed. After heating, stirring and vacuuming in the two storage tanks 12, the raw materials in the two storage tanks 12 become raw material a and raw material b for forming the matrix material, respectively. In the working state, under the intelligent control of the control system, raw material a and raw material b are quantitatively transported to the mixing head 51 through the conveying unit 5. Raw materials a and b are mixed at the mixing head 51. The mixed raw materials a and b become the matrix material and are injected into the injection chamber 322. The matrix material and the reinforcing material are impregnated and compounded in the impregnation tank 3221 located inside the injection chamber 322. In the non-working state, under the intelligent control of the control system, raw materials a and b are returned to the two storage tanks 12 through dedicated pipelines. The mixing head 51 is cleaned regularly through the air purification and liquid purification interfaces set at the mixing head 51 to prevent the mixing head 51 from becoming blocked.

[0048] S5: Forming; The reinforcing material impregnated with the matrix material is heated, cooled and cured in heating section 323, transition section 324 and cooling section 325 in sequence to form a finished profile.

[0049] S6: Traction and cutting; The finished profile is continuously pulled out from the forming device 32 by the reciprocating traction device 33. After a certain length is determined, it is cut by the cutting device 34 to become a batch of finished products.

[0050] The working principle and beneficial effects of the above technical solution are as follows: By adjusting the working angle of the molding part 3, the present invention ensures that the matrix material injected into the injection cavity 322 will not leak out from the preforming device 321, thereby reducing the waste of matrix material and avoiding production discontinuity caused by matrix material leakage and solidification; by setting the impregnation pool 3221, the matrix material can be well impregnated and compounded with the reinforcing material, improving the molding quality and fiber content of the material; by adjusting the adjustment part 4, the working angle of the molding part 3 can be flexibly adjusted according to different product shapes and matrix material injection rates, making production more flexible; by setting the preforming device 321, the reinforcing material can be pre-shaped before entering the injection cavity 322, and with different models of injection cavities 322, profiles with more complex cross-sectional shapes can be produced; by adjusting the angle, the overflow of matrix material can be avoided, improving the utilization rate of matrix material and the coverage rate of reinforcing material, so that the produced profiles have high specific strength, specific modulus, corrosion resistance and electrical insulation, and reducing production costs.

[0051] To allow for angle adjustment of the molding part 3, we have implemented a very basic design for the adjustment part 4, aiming to achieve angle adjustment of the molding part 3 using the simplest structure and method. Therefore, we provide a first implementation of the adjustment part 4, such as... Figure 5 , 6 As shown, where the drive device is not shown, the adjustment unit 4 consists of a front-end device 6 and a rear-end device 9 set on the ground. The front-end device 6 is movably connected to the bottom surface of the frame 31 near the reinforcement 2, and the rear-end device 9 is movably connected to the bottom surface of the frame 31 away from the reinforcement 2. The drive device is set on the front-end device 6.

[0052] The front-end device 6 consists of a front-end fixed frame 61 connected to the ground, at least one lifting device 62 disposed on the front-end fixed frame 61, and a front-end support member 63 disposed on the bottom surface of the frame 31. The front-end fixed frame 61 and the front-end support member 63 are both movably connected to the lifting device 62. The driving device is disposed on the front-end fixed frame 61 and connected to the lifting device 62. The rear-end device 9 consists of a rear-end fixed frame 91a connected to the ground and a rear-end support member 92a disposed on the bottom surface of the frame 31. The rear-end support member 92a is movably connected to the rear-end fixed frame 91a.

[0053] In this embodiment, we provide a simple way to achieve angle adjustment. The following description uses two hydraulic devices as the lifting device 62 as an example. It should be noted that the hydraulic device is used as the lifting device 62 in this embodiment for illustrative purposes only. Commercially available equipment or existing technology that can achieve lifting and lowering, such as manual jacks or rockers, can be used. The driving device can also be a commercially available product or existing technology that can drive the lifting device.

[0054] The working angle of the equipment can be precisely adjusted in real time using two hydraulic devices (i.e., lifting devices 62). One end of the hydraulic device is hinged to the front fixed frame 61 (relevant limiting components need to be set so that the hydraulic device can be fixed at a certain angle relative to the front fixed frame 61, and the angle of the hydraulic device relative to the front fixed frame 61 is adjusted according to the maximum lifting stroke of the hydraulic device based on the required lifting height of the frame 31). Figure 5 As shown), the front-end fixed frame 61 is fixed to the ground to complete the limit, and the other end of the hydraulic device is hinged to the front-end support 63 on the frame 31 through the hydraulic cylinder; the other end of the frame 31 is hinged to the two rear-end fixed frames 91a through the two rear-end support frames 92a. The two rear-end fixed frames 91a are fixed to the ground, and the frame 31 can be raised and lowered by the hydraulic device, so that the frame 31 can be angled with the rear-end equipment 9 as the axis. The measured height of the frame 31 is converted into the angle between the forming device 32 and the ground, and compared and adjusted with the known angle (tanα=h / H).

[0055] Therefore, the angle adjustment of the molding device 32 can be achieved in the simplest way. It should be noted that because the molding device 32, traction device 33, and cutting device 34 need to be kept in a straight line, these devices need to be mounted on the frame 31, and the overall angle is adjusted through the frame 31. This raises a problem: if the injection rate or the base material is changed, the angle needs to be readjusted again. Furthermore, if the shape of the finished profile needs to be changed, the entire molding unit 3 may need to be replaced. Replacing only the molding device 32 is also possible, but the traction device 33, cutting device 34, and molding device 32 need to be readjusted to be in a straight line. Since the traction device 33 requires a slide rail and other devices mounted on the frame 31, it is usually used one-to-one, with one molding unit 3 suitable for one type of finished profile. Each frame 31 will have different slide rails for mounting the traction device 33. Before the first use, the position between the molding device 32 and the slide rail should be adjusted. Afterwards, when changing the molding unit 3, only the traction device 33 and the cutting device 34 need to be replaced.

[0056] In the first implementation, we provide a basic design scheme. Although repeated adjustments are required after replacing the finished profile (mainly for customers with limited equipment purchase costs), it is still usable, albeit time-consuming and labor-intensive. Furthermore, in the first implementation, the lifting device is supported by a single hydraulic cylinder, resulting in inconvenience, a short lifespan, and high power consumption of the drive unit due to the inclined support. Therefore, to optimize the force distribution on the front-end equipment, increase its lifespan, and reduce power consumption of the drive unit, we provide a second implementation scheme, such as... Figure 7-9 As shown, the adjustment unit 4 consists of a front-end device 7 and a rear-end device 9 installed on the ground. The front-end device 7 is movably connected to the bottom surface of the frame 31 near the reinforcement part 2, and the rear-end device 9 is movably connected to the bottom surface of the frame 31 away from the reinforcement part 2. The drive device a is installed on the front-end device 7.

[0057] The front-end device 7 consists of a front-end fixed frame 71 connected to the ground, at least one lifting device 72 disposed on the front-end fixed frame 71, and a front-end support member 73 disposed on the bottom surface of the frame 31. The front-end fixed frame 71 and the front-end support member 73 are both movably connected to the lifting device 72. The driving device a is disposed on the front-end fixed frame 71 and connected to the lifting device 72.

[0058] In this embodiment, a torsion motor is used as the drive device a, replacing the single hydraulic cylinder force-bearing mode in the first embodiment. In the second embodiment, a double-link method is used for lifting. The lifting device 72 consists of a first rotating rod and a second rotating rod forming a double-link. One end of the first rotating rod is connected to the drive shaft of the torsion motor (drive device a), and the other end is connected to one end of the front support member 73. The front support member 73 is a support rod parallel to the bottom surface of the frame 31. Figure 9 As shown, the other end of the front support 73 is axially connected to one end of the second rotating rod, and the other end of the second rotating rod is axially connected to the front fixing frame 71 (also equipped with related limiting components, so that the end of the second rotating rod connected to the front support 73 is higher than the end of the second rotating rod connected to the front fixing frame 71). When the angle is adjusted, the drive device a drives the first rotating rod to rotate, and the first rotating rod drives the second rotating rod to rotate through the front support 73. The length of the second rotating rod is greater than the length of the first rotating rod, so that when the second rotating rod and the first rotating rod rotate at the same time, there will be an angle between the front support 73 and the ground, thereby playing the role of adjusting the angle of the frame 31.

[0059] Compared to the first embodiment, in this embodiment, the force exerted by the frame 31 is distributed to the first and second rotating rods via the front support 73. Because the first rotating rod is shorter than the second rotating rod, after angle adjustment, the connection point between the second rotating rod and the front support 73 is higher than the connection point between the first rotating rod and the front support 73. This allows most of the force exerted by the frame 31 to be transmitted to the ground via the second rotating rod and the front fixing frame 71, while a portion of the force can be borne by the drive device a. This invention converts the force exerted on the frame 31 into the torque of the drive device a, and decomposes the force through a double-linkage mechanism, reducing the power consumption of the drive device a. Similarly, the drive device a can also use a handwheel in conjunction with gears and clamps to achieve manual angle adjustment and angle fixation.

[0060] In the first embodiment, we introduced a method where the drive device directly lifts the machine via a hydraulic system. In the second embodiment, we introduced a method where force is decomposed and lifted via torque transmission. In the third embodiment, we provide a horizontal transmission lifting method. When the frame 31 is placed horizontally, it rests on at least four auxiliary support members (which can provide support when the frame 31 is placed horizontally, facilitating daily maintenance and repair) located on the top of the front-end fixed frame 81. The lifting device 82 consists of an adjusting rod 84, one end of which is movably connected to the front-end support member 83 and the other end of which is axially connected to the front-end fixed frame 81, and a lifting block 85 located inside the front-end fixed frame 81 and connected to the drive device b via a transmission device. The top of the lifting block 85 abuts against the adjusting rod 84.

[0061] In this embodiment, a screw is used as an example of the transmission device. The drive device b can drive the screw to rotate, thereby causing the lifting block 85 to slide relative to the adjusting rod 84. A sliding groove for the lifting block 85 to slide can be provided on the front fixing frame 81. The top surface of the lifting block 85 is hemispherical. When the lifting block 85 moves, it will push the adjusting rod 84 to rotate around its shaft connection with the front fixing frame 81 as the center of rotation, thereby allowing the adjusting rod 84 to push the frame 31 to rise. Similarly, the drive device b and the screw are only illustrative examples. Any prior art or commercially available equipment that can realize the translation of the lifting block 85 should be included within the protection scope of this invention.

[0062] All three implementation methods are integrated implementation methods, and all three are the most basic implementation methods for angle adjustment. The first implementation method is suitable for ordinary users or users with low purchase costs. Its advantages are simple structure and cheap equipment, but it has disadvantages such as short service life of the lifting device and inconvenience in changing equipment models (see the above content for details).

[0063] The second implementation method is suitable for users who do not require a high lifting angle and whose equipment is relatively heavy. Its advantage is that it is the type of equipment with the highest load-bearing capacity among the three implementation methods. For users who need to modify or upgrade the equipment later, the greater the load-bearing capacity, the more modular equipment can be stacked, which is more suitable for equipment iteration, updates, and new product experiments. However, because the lifting angle is the lowest among the three, it is not suitable for production modes with large injection volumes.

[0064] The third implementation method is suitable for production modes with large injection volumes. Its lifting angle is the largest among the three, so it can handle larger injection volumes. However, because its lifting angle is the largest and the adjusting rod 84 is easily bent by the lifting block 85, its inspection and maintenance frequency is the highest among the three.

[0065] The specific implementation method needs to be selected by the user based on their investment funds and R&D and production model.

[0066] We have introduced the integrated implementation above. Similarly, the front-end device can also be implemented in a split configuration. Here, we take the improvement of the third implementation into a split configuration as an example, so that the front-end support and the lifting device can be separated. Therefore, during equipment maintenance, it is no longer necessary to remove the front-end support from the frame 31. Thus, we provide a fourth implementation, such as... Figure 10 , 11 The adjustment unit 4 consists of a front-end device 8 and a rear-end device 9 installed on the ground. The front-end device 8 is movably connected to the bottom surface of the frame 31 near the reinforcement part 2, and the rear-end device 9 is movably connected to the bottom surface of the frame 31 away from the reinforcement part 2. The drive device b is installed on the front-end device 8.

[0067] The front-end device 8 consists of a front-end fixed frame 81 connected to the ground, at least one lifting device 82 disposed on the front-end fixed frame 81, and a front-end support member 83 disposed on the bottom surface of the frame 31. The front-end fixed frame 81 and the front-end support member 83 are both movably connected to the lifting device 82. The drive device b is disposed on the front-end fixed frame 81 and connected to the lifting device 82.

[0068] The end of the adjusting rod 84 is provided with a roller 86 that is movably connected to the front support member 83. The roller 86 is axially connected to the adjusting rod 84. When the frame 31 adjusts its angle, the roller 86 at the end of the adjusting rod 84 abuts against the front support member 83. After abutting, the roller 86 acts as a rotation axis, so that the adjusting rod 84 and the front support member 83 can rotate relative to each other through the roller 86 when the angle is adjusted. When the frame 31 is placed horizontally, the roller 86 at the end of the adjusting rod 84 separates from the front support member 83. At this time, the equipment can be maintained. During maintenance, it is only necessary to manually lift the frame 31. Usually, after lifting, check whether the adjusting rod 84 is bent and whether the lifting block 85 moves smoothly.

[0069] Because this embodiment uses a split connection method, there is no positional limitation on the side of the frame 31 after lifting. Furthermore, due to the high lifting angle in the third implementation, lateral deformation is easily caused if the frame 31 is hit. Therefore, some improvements need to be made to the front support member 83. The front support member 83 consists of two opposing U-shaped clamps 831 and a limiting block 833 movably connected within the U-shaped clamps 831 via a rotating shaft 832. The limiting block 833 can be... Figure 12 As shown, an opening slot is provided at the bottom, and the inner top wall of the opening slot is arc-shaped, with the center of the arc being the rotation axis 832. The size of the opening slot is adapted to the distance between the two ends of the roller 86. When the roller 86 of the adjusting rod 84 abuts against the front support 83, the outer wall of the roller 86 will first abut against the arc-shaped inner top wall of the opening slot. As the adjusting rod 84 is raised, the roller 86 will drive the limiting block 833 to rotate around the rotation axis 832 through the arc-shaped inner top wall of the opening slot until the outer wall of the roller 86 is completely abutting against the arc-shaped inner top walls of the two opening slots. At this time, the side wall of the opening slot blocks the two ends of the roller 86, thereby completing the limiting of the adjusting rod 84. Figure 14 As shown in Figures A and B, when the frame 31 descends to overlap with the auxiliary support, the roller 86 separates from the front support 83, as... Figure 14 As shown in C. The top of the limit block 833 is usually equipped with a cylindrical brake lever, such as... Figure 13 As shown, the brake lever is located on the side away from the opening slot. When the roller 86 gets stuck in the front support member 83 due to prolonged use, the roller 86 can be manually separated by the brake lever. The opening direction of the U-shaped clamp 831 is away from the bottom surface of the frame 31, and the two U-shaped clamps 831 are connected by a connecting plate 834.

[0070] In addition to improving the front-end device, we also provide an implementation method that elevates the back-end device. Unlike the semi-separated implementation method of the front-end device, the back-end device adopts a fully separated implementation method, such as... Figure 15 As shown, in the second embodiment of the back-end device, the back-end support 92b consists of a mounting block 93 connected to the bottom surface of the frame 31 and side wheels 94 disposed at both ends of the mounting block 93. The back-end fixed frame 91b is provided with at least four auxiliary wheels 95. The auxiliary wheels 95 are arranged in pairs, and each pair of auxiliary wheels 95 is movably connected to one side wheel 94. The two auxiliary wheels 95 in each pair are located on both sides of the side wheel 94, and the circumferential surface of the auxiliary wheel 95 abuts against the circumferential surface of the side wheel 94. The four auxiliary wheels 95 realize the split support and relative rotation of the back-end support 92b. One of the side wheels 94 is provided with a gear disk 96, and the gear disk 96 is connected to the drive device c disposed on the back-end fixed frame 91b. Because this embodiment uses a rear-end device for angle adjustment of the frame 31, the rear-end device is positioned closer to the center of the frame 31. The front-end device can be supported by a separate unit. For example, a pad with a convex top and a slot at the bottom can be used as a separate support for the front-end device. A fixed object matching the slot is placed on the ground as a front-end fixing frame. The pads, vertically interlocked, serve as a lifting device (providing support only after the angle is adjusted and not participating in the lifting of the frame 31). A plate is provided on the frame 31 for the convex-shaped pads to be inserted as a front-end support. Any commercially available product or existing technology that can provide support and is easily detachable from the frame 31 can be used as the supporting front-end device. During equipment maintenance, only the gear disk 96 and the drive device c need to be checked. The rear-end device as an angle adjustment implementation is suitable for users with production needs that are intermittent. Both the front-end and rear-end devices are separate structures that can be quickly disassembled and assembled.

[0071] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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 invention.

[0072] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0073] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. Other modifications can be easily made by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. An adjustable-angle in-situ polymerization thermoplastic composite material injection pultrusion production equipment, characterized in that, include: The substrate part (1) for preparing and supplying matrix material, the reinforcing part (2) for supplying reinforcing material, the molding part (3) for forming a composite material from matrix material and reinforcing material, and the adjusting part (4) provided at the bottom of the molding part (3) for angle adjustment, wherein the substrate part (1) and the reinforcing part (2) are both connected to the molding part (3); The substrate section (1) consists of at least two premixing tanks (11) for heating, stirring and vacuuming, at least two storage tanks (12) for storing different substrate raw materials, and a conveying section (5) connecting the storage tanks (12) and the molding section (3). The premixing tanks (11) are connected to the storage tanks (12), and a mixing head (51) is provided in the conveying section (5). Each storage tank (12) is connected to the molding section (3) through the mixing head (51). The forming part (3) consists of a forming device (32) disposed at one end of the frame (31), a traction device (33) disposed between the forming device (32) and the cutting device (34), and a mixing head (51) disposed on the forming device (32). The adjusting part (4) is disposed at the bottom of the frame (31), and the forming device (32) is located on the side of the frame (31) near the reinforcing part (2). The adjustment unit (4) consists of a front-end device (6, 7, 8) and a rear-end device (9) set on the ground. The front-end device (6, 7, 8) is movably connected to the bottom surface of the frame (31) near the reinforcement part (2), and the rear-end device (9) is movably connected to the bottom surface of the frame (31) away from the reinforcement part (2). The drive device (a, b, c) is selectively set on the front-end device (6, 7, 8) or on the rear-end device (9). The front-end equipment (6, 7, 8) consists of a front-end mounting frame (61, 71, 81) connected to the ground, at least one lifting device (62, 72, 82) mounted on the front-end mounting frame (61, 71, 81), and a front-end support member (63, 73, 83) mounted on the bottom surface of the frame (31). Both the front-end mounting frame (61, 71, 81) and the front-end support member (63, 73, 83) are connected to the lifting device (62, 72, 83). 2) Movable connection, the drive device (a, b) is set on the front end fixed frame (61, 71, 81) and connected to the lifting device (62, 72, 82), the rear end device (9) is composed of a rear end fixed frame (91a, 91b) connected to the ground, and a rear end support (92a, 92b) set on the bottom surface of the frame (31), the rear end support (92a, 92b) is movably connected to the rear end fixed frame (91a, 91b); When the frame (31) is placed horizontally, the frame (31) rests on at least four auxiliary support members set on the top of the front fixed frame (81). The lifting device (82) consists of an adjusting rod (84) with one end movably connected to the front support member (83) and the other end connected to the shaft of the front fixed frame (81), and a lifting block (85) located inside the front fixed frame (81) and connected to the drive device (b) through a transmission device. The top of the lifting block (85) abuts against the adjusting rod (84). The end of the adjusting rod (84) is provided with a roller (86) that is movably connected to the front support member (83). The roller (86) is axially connected to the adjusting rod (84). When the frame (31) is adjusted, the roller (86) at the end of the adjusting rod (84) abuts against the front support member (83). When the frame (31) is placed horizontally, the roller (86) at the end of the adjusting rod (84) separates from the front support member (83). The front support member (83) consists of two U-shaped clamps (831) arranged opposite to each other, and a limiting block (833) movably connected to the U-shaped clamps (831) through a rotating shaft (832). The opening direction of the U-shaped clamps (831) is away from the bottom surface of the frame (31), and the two U-shaped clamps (831) are connected by a connecting plate (834).

2. The adjustable-angle in-situ polymerization thermoplastic composite material injection pultrusion production equipment according to claim 1, characterized in that, The reinforcing section (2) consists of a material rack (21) for placing reinforcing material and a guide device (22) disposed between the molding section (3) and the material rack (21), wherein the reinforcing material enters the molding section (3) via the guide device (22).

3. The adjustable-angle in-situ polymerization thermoplastic composite material injection pultrusion production equipment according to claim 1, characterized in that, The molding device (32) consists of a pre-forming device (321) disposed at one end of the injection cavity (322), and a heating section (323), a transition section (324), and a cooling section (325) disposed at the other end of the injection cavity (322). The mixing head (51) is disposed at the top of the injection cavity (322). The reinforcing material enters the injection cavity (322) through the pre-forming device (321), and the matrix material enters the injection cavity (322) through the mixing head (51). After the matrix material and the reinforcing material are formed in the injection cavity (322), they pass through the heating section (323), the transition section (324), and the cooling section (325) in sequence and leave the molding device (32). After being sent to the cutting device (34) by the traction device (33) for cutting, the final product is formed.

4. The adjustable-angle in-situ polymerization thermoplastic composite material injection pultrusion production equipment according to claim 1, characterized in that, The rear support (92b) consists of a mounting block (93) connected to the bottom surface of the frame (31) and side wheels (94) set at both ends of the mounting block (93). The rear fixed frame (91b) is provided with at least four auxiliary wheels (95). The auxiliary wheels (95) are in pairs, and each pair of auxiliary wheels (95) is movably connected to a side wheel (94). One of the side wheels (94) is provided with a gear disk (96), and the gear disk (96) is connected to a drive device (c) set on the rear fixed frame (91b).

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