A kind of glass steel product rapid forming device based on granular medium compaction

Abstract

The utility model discloses a glass steel product technical field's a kind of glass steel product rapid prototyping device based on granular medium compaction, including forming die, the inner wall of forming die is equipped with forming groove, the top of the groove is equipped with, the bottom of the forming groove is filled with glass steel embryo, the top and bottom of the glass steel embryo are pasted with flexible isolation film, the top of the glass steel embryo is filled with granular medium filler. The pressure of granular medium is much higher than artificial rolling by self-weight and vibration, and it is uniform without dead angle, can greatly exclude air bubble, force resin to fully soak fiber, to greatly improve the compactness of product, interlaminar bond strength and surface finish, reduce subsequent polishing. The granular medium is heated by temperature control system, which can provide the best environmental temperature for the curing reaction, especially in low temperature environment, the curing cycle can be significantly shortened by more than 50%.

Description

Technical Field

[0001] This utility model relates to the field of fiberglass product technology, specifically a rapid prototyping device for fiberglass products based on particulate media compaction. Background Technology

[0002] The traditional hand lay-up molding process for fiberglass products mainly includes: mold preparation, gel coat spraying, manual resin application, manual fiber laying, manual rolling to remove bubbles, stacking multiple layers to the required thickness, long curing time, demolding, and post-processing sanding and finishing. This process has significant drawbacks: 1. High dependence on manpower and low efficiency: Some production steps rely entirely on skilled workers, resulting in high labor intensity, high personnel costs, and production efficiency is limited by the speed of human operation.

[0003] 2. Large quality fluctuations: It is difficult to maintain consistent pressure and uniformity during manual rolling, which can easily lead to defects such as bubbles, resin-rich areas, and uneven wetting, affecting the strength and quality consistency of the final product.

[0004] 3. Long production cycle: The resin curing time is greatly affected by the ambient temperature. Especially in low temperature environments, the curing reaction is slow, which greatly prolongs the time occupied by the mold and limits the production capacity.

[0005] 4. Harsh working environment: Long-term exposure to resin and fiber poses potential health hazards to operators.

[0006] Therefore, there is an urgent need for a new fiberglass molding device that can reduce human intervention, improve production efficiency and quality stability, and regulate the curing process. Utility Model Content

[0007] The purpose of this invention is to provide a rapid prototyping device for fiberglass products based on granular media compaction, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a rapid prototyping device for fiberglass products based on granular media compaction, comprising a molding mold, wherein a molding groove is provided on the inner wall of the molding mold, the top of the molding groove is through-hole, the top of the molding groove is filled with a fiberglass preform, a flexible isolation membrane is attached to the top and bottom of the fiberglass preform, and the top of the fiberglass preform is filled with a granular media filler.

[0009] As a further embodiment of this utility model: a filling groove is provided on the top of the fiberglass preform, the top of the filling groove is through-hole, and the particulate medium filler is filled in the filling groove.

[0010] As a further improvement of this utility model: the bottom middle positions of the forming groove and the filling groove are both arranged in parallel, and the bottoms at both ends of the forming groove and the filling groove are both recessed downwards.

[0011] Compared with existing technologies, the beneficial effects of this invention are as follows: In this invention, the pressure applied by the granular medium through its own weight and vibration is far higher than that of manual rolling, and it is uniform and without dead corners, which can greatly eliminate air bubbles and force the resin to fully impregnate the fibers, thereby significantly improving the density, interlayer bonding strength, and surface smoothness of the product, and reducing subsequent polishing. Heating the granular medium through a temperature control system can provide the optimal ambient temperature for the curing reaction, especially in low-temperature environments, which can significantly shorten the curing cycle by more than 50%. Automated / mechanized granule filling and recycling replace the heavy manual rolling labor, reducing the number of workers and labor intensity. The granular medium can be repeatedly recycled, with extremely low consumable consumption. The flexible isolation membrane isolates resin volatiles from the granular medium, making the medium easy to recycle; at the same time, it reduces the operator's contact with uncured resin, improving the working environment and protecting health. Attached Figure Description

[0012] Figure 1 This is a schematic cross-sectional view of a rapid prototyping device for fiberglass products based on granular media compaction according to this utility model. Figure 2 This utility model relates to a rapid prototyping device for fiberglass products based on granular media compaction. Figure 1 Enlarged structural diagram at point A; Figure 3 This is an exploded structural diagram of a rapid prototyping device for fiberglass products based on granular media compaction, according to this utility model.

[0013] In the diagram: 1. Molding mold; 2. Fiberglass preform; 3. Flexible isolation membrane; 4. Particulate medium filler; 5. Molding groove; 6. Filling groove. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0016] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Please see Figures 1-3 In this embodiment of the invention, a rapid prototyping device for fiberglass products based on granular media compaction includes a molding mold 1. A molding groove 5 is formed on the inner wall of the molding mold 1, with a through-hole opening at the top. A fiberglass preform 2 is filled in the top of the molding groove 5. Flexible release films 3 are attached to both the top and bottom of the fiberglass preform 2. A granular media filler 4 is filled in the top of the fiberglass preform 2. A filling groove 6 is formed in the top of the fiberglass preform 2, with a through-hole opening at the top. The granular media filler 4 is filled in the filling groove 6. The bottom of the molding groove 5 and the filling groove 6 are parallel at their midpoints, and the bottoms at both ends of the molding groove 5 and the filling groove 6 are recessed downwards.

[0019] When in use, this device includes the following structure: Molding mold 1: Used to support the surface of fiberglass products.

[0020] Flexible separating membrane 3: This membrane is laid on the preform after fiber layup and resin coating, and its edges are equipped with sealing mechanisms to form a seal with the mold edges. This membrane is used to isolate the resin fiber preform below from the particulate medium above.

[0021] Particulate medium 4: High specific gravity, good flowability, and chemical inert fine particles (such as quartz sand, metal sand, ceramic microspheres, etc.) are used as pressure transmission medium and heat conduction medium.

[0022] Media filling and recovery system (external equipment used in production): includes a storage hopper and conveying pipes located above the mold, and a negative pressure suction port and recovery pipe located at the bottom of the mold. It is used to quickly fill the mold cavity with particulate media to cover the preform, and to quickly extract and recover the particulate media after curing.

[0023] Vibration system (external equipment used in production): Integrated into the bottom or side of the mold, it can be a vibration motor or a pneumatic vibrator. After operation, it applies micro-amplitude high-frequency vibration to the mold, causing the particulate medium to flow and fully fill every corner of the mold surface, ensuring uniform pressure is applied to the blank.

[0024] Temperature control system (external equipment used in production): includes heating / cooling unit, temperature sensor and circulation pipeline. The temperature control system can heat or cool the particulate medium in the storage silo or circulation pipeline, so that the particulate medium covers the green body at the optimal temperature, thereby precisely controlling the curing reaction temperature of the fiberglass resin.

[0025] The working principle of this utility model is as follows: Preliminary preparation: Complete the mold treatment and gel coat spraying on the molding mold 1.

[0026] Manual lay-up: This involves applying resin and laying fibers, and multiple layers can be laid up to achieve the designed thickness.

[0027] Covering and Isolation: A large flexible isolation film 3 is covered on the fiberglass preform 2, and its edge sealing mechanism is pressed and sealed with the mold to form a closed space.

[0028] Particle filling: Turn on the media filling system and fill the sealed space with the granular media filler 4, which has been heated to a predetermined temperature (such as 25°C-50°C) by the temperature control system, from the storage silo through the conveying pipeline, until it covers the highest point of the product and reaches the required pressure height.

[0029] Vibration compaction: Start the vibration system and continue for a period of time (e.g., 1-3 minutes) to allow the granular medium filler 4 to flow and compact the preform, ensuring uniform resin impregnation and air bubble removal.

[0030] Curing: Maintain the particulate medium filler 4 in a covered state, and the resin cures rapidly at the optimal temperature.

[0031] Particle recovery: After solidification, the recovery system is turned on, and all the granular media filler 4 is pumped back to the storage silo for later use through the negative pressure suction port and recovery pipeline.

[0032] Demolding: Remove the flexible release film 3. At this point, the product has been cured and the surface is smooth. You can directly demold the product, which greatly reduces the amount of work required for polishing.

[0033] For large products, storage silos, conveying pipelines, and recycling pipelines can be used in conjunction with robotic arms or overhead cranes to achieve automated operation.

[0034] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0035] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A rapid prototyping device for fiberglass products based on particulate media compaction, comprising a molding die (1), characterized in that: The inner wall of the molding mold (1) is provided with a molding groove (5), the top of the molding groove (5) is through, the top of the molding groove (5) is filled with a fiberglass preform (2), the top and bottom of the fiberglass preform (2) are both attached with a flexible isolation film (3), and the top of the fiberglass preform (2) is filled with a particulate medium filler (4).

2. The rapid prototyping device for fiberglass products based on particulate media compaction according to claim 1, characterized in that: The top of the fiberglass preform (2) is provided with a filling groove (6), the top of the filling groove (6) is through, and the particulate medium filler (4) is filled in the filling groove (6).

3. The rapid prototyping device for fiberglass products based on particulate media compaction according to claim 1, characterized in that: The bottom middle positions of the forming groove (5) and the filling groove (6) are both parallel, and the bottoms at both ends of the forming groove (5) and the filling groove (6) are both recessed downwards.

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