Multi-layer vibration compression molding machine

Abstract

The invention provides a multi-layer vibration compression molding machine, and relates to the technical field of material molding equipment. The multi-layer vibration compression molding machine comprises a base; each mold vibration assembly comprises a vibration plate, a fixing plate, a pressing plate and a mold, the fixing plate is located above the vibration plate, the pressing plate is elastically connected to the side, facing the vibration plate, of the fixing plate, and the mold is clamped between the vibration plate and the pressing plate; the vibrating plate is elastically connected with the base or the lower-layer fixing plate; the fixing plate is fixedly connected with the base; the vibration motor is installed on the base and transmits vibration energy to the vibration plate on the bottom layer. According to the multi-layer vibration compression molding machine, the compactness of materials can be effectively improved, uniform distribution of material components is ensured, and internal defects are reduced. Therefore, the overall performance of the material is optimized, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of material forming equipment, and in particular to a multi-layer vibration compression molding machine. Background Art

[0002] The molding process involves converting raw materials (such as plastics, metals, ceramics, etc.) into finished products with specific shapes, sizes and properties through specific technical means. This process is often accompanied by a change in the state of the material, such as from liquid to solid, or from powder to compact form.

[0003] Currently, the commonly used molding processes include vibration molding and compression molding. The vibration molding method uses vibration energy to densify the material in the mold, which helps to reduce the porosity inside the material, improve uniformity, and has good compatibility with materials of different systems. However, the use of vibration molding alone can easily lead to uneven dispersion of lightweight fillers in the mixed material, with low density in the upper part and high density in the lower part. Compression molding can produce products with precise dimensions and complex shapes, and has high production efficiency. However, compression molding may cause the lightweight material in the material to be extruded, resulting in uneven density and defects inside the material, and compression molding is not suitable for low-strength fillers due to its high pressure intensity. Summary of the invention

[0004] In view of the above problems, the embodiment of the present application provides a multi-layer vibration compression molding machine, which can effectively improve the density of the material, ensure the uniform distribution of the material components, and reduce internal defects, thereby optimizing the overall performance of the material and improving production efficiency.

[0005] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0006] The present application provides a multi-layer vibration molding machine, including: a base; at least two layers of mold vibration components, the mold vibration components include a vibration plate, a fixed plate, a pressure plate and a mold, the fixed plate is located above the vibration plate, the pressure plate is elastically connected to the side of the fixed plate facing the vibration plate, and the mold is clamped between the vibration plate and the pressure plate; the vibration plate is elastically connected to the base or the lower fixed plate, and the fixed plate is fixedly connected to the base; a vibration motor is installed on the base and transmits vibration energy to the bottom vibration plate.

[0007] In a possible implementation manner, a positioning groove is provided on the vibration plate, and the bottom of the mold is located in the positioning groove.

[0008] In a possible implementation manner, a positioning plate extends out from the side wall of the mold, the positioning plate is disposed against the surface of the vibration plate, and the positioning plate is fixedly connected to the vibration plate.

[0009] In a possible implementation, the mold includes: a box body; a cover plate, which is arranged on the top of the box body; and a heating belt, which is arranged around the outer side wall of the box body.

[0010] In a possible implementation manner, the vibration plate and the base, and the vibration plate and the lower fixed plate are connected via a plurality of first springs, and the first springs are arranged at intervals along the circumference of the vibration plate.

[0011] In a possible implementation manner, the pressing plate and the fixing plate are connected via a plurality of second springs, and the second springs are arranged at intervals along the circumference of the pressing plate.

[0012] In a possible implementation, it further includes: a vacuum component, an openable and closable cover disposed outside the mold vibration component, for providing a vacuum environment for the mold.

[0013] In a possible implementation, the vacuum assembly includes: a vacuum cover, which is an openable and closable cover disposed outside the mold vibration assembly; and a lifting assembly, which is connected between the vacuum cover and the base and is used to drive the vacuum cover to rise and fall.

[0014] In a possible implementation, the vacuum hood includes: a hood body; and a top plate assembly disposed at the top of the hood body and connected to the lifting assembly.

[0015] In a possible implementation, the top plate assembly includes: a lifting plate connected to the lifting assembly; and a fixed plate connected to the top of the cover body and connected below the lifting plate.

[0016] The multi-layer vibration molding machine provided by the present application includes a base, at least two layers of mold vibration components and a vibration motor. The mold vibration component includes a vibration plate, a fixed plate, a pressure plate and a mold. Among them, the vibration plate is elastically connected to the base or the lower fixed plate to ensure the effective transmission of vibration energy. The fixed plate is located on the vibration plate and is rigidly connected to the base. The pressure plate is elastically connected to the side of the fixed plate facing the vibration plate, and the mold is arranged between the vibration plate and the pressure plate for carrying materials. The vibration motor is installed on the base and is responsible for providing vibration energy. When the vibration motor is working, its vibration energy is transmitted to the mold vibration component through the vibration plate, and then drives the mold to vibrate to reduce bubbles and defects in the material in the mold. At the same time, the vibration of the mold allows the material to periodically impact the mold, so that the mold produces reciprocating dynamic pressure on the material. Thereby, the density of the material can be further enhanced, its internal defects can be reduced, and the uniform distribution of the various components of the material can be promoted. In addition, the design of the multi-layer mold vibration component can allow multiple molding processes to be carried out simultaneously, which can significantly improve production efficiency. In addition, the multi-layer mold vibration assembly shares the same vibration motor, which can effectively reduce energy consumption and improve energy utilization compared to the single-layer mold vibration assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of the structure of a multi-layer vibration compression molding machine provided in an embodiment of the present application;

[0019] Figure 2 A schematic diagram of the structure of the multi-layer vibration compression molding machine provided in an embodiment of the present application after removing the vacuum component;

[0020] Figure 3 for Figure 2 A partial enlarged view of part A;

[0021] Figure 4 for Figure 3 A partial enlarged view of part B;

[0022] Figure 5 It is a structural schematic diagram of the box in the mold;

[0023] Figure 6 A schematic diagram of the structure of the vacuum assembly and the base of the multi-layer vibration molding machine provided in an embodiment of the present application in a closed state;

[0024] Figure 7 A schematic diagram of the structure of the multi-layer vibration compression molding machine provided in an embodiment of the present application after the vacuum cover is removed.

[0025] Description of reference numerals:

[0026] 10-Multi-layer vibration molding machine;

[0027] 100-base; 200-mold vibration component; 300-vibration motor; 400-vacuum component;

[0028] 210-vibration plate; 220-first spring; 230-fixed plate; 240-pressing plate; 250-mold; 260-fixed column; 270-second spring; 410-vacuum cover; 420-observation window; 430-illumination lamp;

[0029] 211-positioning groove; 251-box; 252-cover plate; 411-cover body; 412-top plate assembly;

[0030] 2511-positioning plate; 2512-heating belt; 4121-lifting plate; 4122-lifting assembly; 4123-support plate; 4124-guide rail. DETAILED DESCRIPTION

[0031] As described in the background technology, the molding process is to use specific technical means to accurately process a variety of raw materials into products with predetermined shapes, precise sizes and specific uses.

[0032] Taking solid buoyancy materials used in deep water environments as an example, they are mainly composed of high-strength resins (such as epoxy resins or vinyl resins) to strengthen the strength of the materials and lightweight fillers (such as hollow glass microspheres) to reduce the density of the materials. After these raw materials are mechanically stirred and mixed evenly, they are further processed through a molding process to eliminate internal defects, and then heated and cured to finally form solid buoyancy materials.

[0033] Currently, the commonly used molding methods include compression molding and vibration molding. Among them, compression molding can accurately control the size of the material and effectively eliminate the internal defects of the material. However, under high-intensity pressure, the resin may overflow from the mixed material, resulting in the density of the molded material being lower than the theoretical value. In addition, ultra-low-density, low-strength lightweight fillers such as organic expanded beads are easily broken under high-intensity molding, thereby increasing the water absorption of the mixed material. Therefore, the compression molding method has poor compatibility with different materials, and requires continuous adjustment of the material formula and molding process, which increases the complexity and cost of the process.

[0034] The vibration molding method has a simple process and high production efficiency, and can effectively reduce internal defects of materials. In addition, with the vibration molding method, the mixed material does not need to bear a large external pressure, so the vibration molding method is compatible with a variety of material systems. However, the vibration molding method easily causes the upper density of the material to be low and the lower density to be high, resulting in uneven dispersion of the mixed material. In addition, as the proportion of lightweight fillers increases, the viscosity of the mixed material increases rapidly, and it is difficult to effectively eliminate internal defects under high viscosity conditions only through the vibration molding method.

[0035] In view of this, an embodiment of the present application provides a multi-layer vibration molding machine, including a base, at least two layers of mold vibration components and a vibration motor. The mold vibration component includes a vibration plate, a fixed plate, a pressure plate and a mold. Among them, the vibration plate is elastically connected to the base or the lower fixed plate to ensure the effective transmission of vibration energy. The fixed plate is located on the vibration plate and is rigidly connected to the base. The pressure plate is elastically connected to the side of the fixed plate facing the vibration plate, and the mold is arranged between the vibration plate and the pressure plate for carrying materials. The vibration motor is installed on the base and is responsible for providing vibration energy. When the vibration motor is working, its vibration energy is transmitted to the mold vibration component through the vibration plate, and then drives the mold to vibrate to reduce bubbles and defects in the material in the mold. At the same time, the vibration of the mold allows the material to periodically impact the mold, so that the mold produces reciprocating dynamic pressure on the material. Thereby, the density of the material can be further enhanced, its internal defects can be reduced, and the uniform distribution of the various components of the material can be promoted. In addition, the design of the multi-layer mold vibration component can allow multiple molding processes to be carried out simultaneously, which can significantly improve production efficiency. In addition, the multi-layer mold vibration assembly shares the same vibration motor, which can effectively reduce energy consumption and improve energy utilization compared to the single-layer mold vibration assembly.

[0036] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application.

[0037] Figure 1 This is a schematic diagram of the structure of a multi-layer vibration molding machine provided in an embodiment of the present application. Figure 1 As shown, the present application provides a multi-layer vibration compression molding machine (hereinafter referred to as the molding machine) 10. The molding machine 10 has important applications in the fields of marine engineering, deep-sea exploration, underwater equipment manufacturing, etc., and can produce solid buoyancy materials that meet special requirements to adapt to extreme environments such as deep-sea high pressure and corrosion resistance.

[0038] Figure 2 A schematic diagram of the structure of the multi-layer vibration molding machine provided in an embodiment of the present application after removing the vacuum component. Figure 3 for Figure 2 A partial enlarged view of part A. Figure 4 for Figure 3 A partial enlarged view of part B.

[0039] Reference Figures 1 to 3As shown, the molding machine 10 includes a base 100, at least two layers of mold vibration components 200, and a vibration motor 300. The base 100 is set on a flat ground, which can provide stable support for the molding machine 10, and the base 100 can also absorb and disperse the dynamic load generated by the molding machine 10 during operation to prevent the machine from moving or tilting. The base 100 is usually designed with a heavy-duty structure to have sufficient strength and rigidity to withstand long-term use and repeated vibration shocks, and is not easily damaged or deformed, ensuring the long-term stable operation and efficient operation of the molding machine 10.

[0040] The vibration motor 300, as the core component of the molding machine 10, is disposed between the base 100 and the bottom mold vibration assembly 200, and is fixedly mounted on the base 100. The vibration motor 300 can convert electrical energy into mechanical vibration energy through electromagnetic force, and transmit the vibration energy to the mold vibration assembly 200, thereby realizing vibration molding of the material in the mold vibration assembly 200. In addition, the vibration frequency and amplitude can be controlled by adjusting the parameters of the vibration motor 300 to meet the molding requirements of different materials.

[0041] Specifically, refer to Figures 1 to 4 As shown, the mold vibration assembly 200 includes a vibration plate 210. The vibration plate 210 is disposed above the vibration motor 300. The vibration motor 300 can transfer energy through the vibration plate 210.

[0042] In a possible implementation, the vibration motor 300 can be non-rigidly connected to the vibration plate 210 through an eccentric block (not shown in the figure). The eccentric block is installed on the motor shaft of the vibration motor 300 with a certain eccentricity (not shown in the figure). When the vibration motor 300 is started, the rotor and the eccentric block inside the vibration motor 300 begin to rotate. As the rotor rotates, the eccentric block can generate a centrifugal force due to its eccentric position. The centrifugal force can cause the vibration motor 300 to vibrate, and the vibration energy is then transmitted to the mold vibration assembly 200 through the vibration plate 210. In addition, by changing the eccentricity or mass of the eccentric block, the amplitude and exciting force generated by the vibration motor 300 can be adjusted to meet the molding requirements of different materials.

[0043] In addition, the vibration plate 210 is elastically connected to the base 100. Alternatively, between the multiple layers of mold vibration components 200, the vibration plate 210 is elastically connected to the lower layer mold vibration component 200. For example, referring to Figures 1 to 4As shown, the vibration plate 210 and the base 100 or the vibration plate 210 and the lower mold vibration assembly 200 can be connected by a plurality of first springs 220, and each first spring 220 is arranged at intervals along the circumference of the vibration plate 210. Taking the vibration plate 210 as a rectangle as an example, the first springs 220 can be arranged at the four corners of the vibration plate. In this way, it helps to ensure the stability of the vibration plate 210 and the uniform transmission of vibration energy.

[0044] The first spring 220 can provide elastic support and position limiting functions for the vibration plate 210, ensuring that the vibration plate 210 does not undergo significant horizontal displacement during the vibration process, thereby ensuring effective transmission of vibration energy and guaranteeing the accuracy of the molding process.

[0045] At the same time, the damping effect of the first spring 220 can further absorb the impact energy during the vibration process, reduce the sharp peak value of the vibration, and buffer the direct impact on the vibration plate 210. This makes the movement of the vibration plate 210 more stable, which helps to reduce the generation of material bubbles and internal defects.

[0046] Of course, the vibration frequency and amplitude between the vibration plate 210 and the vibration motor 300 can also be effectively decoupled through the damping characteristics of the first spring 220, so that the vibration plate 210 can vibrate independently of the motor. In this way, by adjusting the stiffness and damping characteristics of the first spring 220, the frequency and amplitude of vibration of different layers of the vibration plates 210 can be controlled, thereby allowing the molding machine 10 to have high flexibility and adapt to the specific needs of different molding materials and processes.

[0047] Continue to refer to Figures 1 to 4 As shown, the mold vibration assembly 200 also includes a fixing plate 230, a pressing plate 240 and a mold 250. The fixing plate 230 is located above the vibration plate 210 and can provide a solid support structure to ensure the stability and integrity of the entire device. A rigid connection is usually formed between the fixing plate 230 and the base 100, or between the upper fixing plate 230 and the lower fixing plate 230 to withstand the force generated during the vibration process.

[0048] Exemplarily, the fixing plate 230 and the base 100, or the upper fixing plate 230 and the lower fixing plate 230 can be fixedly connected by a plurality of fixing columns 260. The fixing columns 260 are evenly spaced along the circumference of the fixing plate 230. Exemplarily, taking the fixing plate 230 as a rectangle, the fixing columns 260 can be arranged at the four corners of the fixing plate 230. In this way, the fixing columns 260 can provide support for the molding machine 10, enhance the structural rigidity of the molding machine 10, and enable the molding machine 10 to remain stable even under high pressure and high-frequency vibration.

[0049] In addition, between the multi-layer mold vibration assemblies 200, the fixing plate 230 is elastically connected to the vibration plate 210 of the upper mold vibration assembly 200. The fixing plate 230 can provide a stable support for the upper mold vibration assembly 200 and ensure that the vibration energy can be efficiently transmitted to the upper mold vibration assembly 200.

[0050] The pressing plate 240 is elastically connected to the side of the fixing plate 230 facing the vibration plate 210. For example, the pressing plate 240 and the fixing plate 230 may be connected via a plurality of second springs 270, and the second springs 270 are arranged at intervals along the circumference of the pressing plate 240.

[0051] The mold 250 is sandwiched between the vibration plate 210 and the pressing plate 240 , and its shape can be a cube, a cuboid, a cylinder or other complex shapes to meet the design requirements of different products, which is not specifically limited in this embodiment.

[0052] Among them, the mold 250 includes a box body 251 and a cover plate 252. The box body 251 is fixed on the vibration plate 210, and its interior can be used to carry materials. The cover plate 252 is fixedly connected to the pressing plate 240. In this way, when the vibration motor 300 is started, the eccentric block inside it rotates to generate centrifugal force, excites the motor to vibrate, and the vibration energy is transmitted to the box body 251 through the vibration plate 210. Since vibration helps to discharge gas and break the surface tension of the material, the vibration of the box body 251 can effectively reduce bubbles and defects in the internal material. At the same time, the vibration of the box body 251 allows the material to periodically impact the cover plate 252. Since the cover plate 252 is elastically connected to the fixed plate 230 through the pressing plate 240, the cover plate 252 will also vibrate under the action of the spring. Thereby, the cover plate 252 can apply reciprocating dynamic pressure to the material, which further enhances the density of the material, reduces internal defects, and promotes the uniform distribution of the various components of the material.

[0053] In a possible implementation, a positioning groove 211 may be provided on the vibration plate 210, and the bottom of the box 251 may be placed in the positioning groove 211. The positioning groove 211 can preliminarily ensure the precise positioning and stability of the mold 250, prevent it from being displaced or rotated in the horizontal direction during the vibration process, reduce the friction and wear between the mold 250 and the vibration plate 210, and extend the service life of the equipment. In addition, the positioning groove 211 can be designed as a standardized or adjustable structure to adapt to molds 250 of different sizes and shapes, thereby enhancing the flexibility and versatility of the molding machine 10.

[0054] Figure 5 This is a schematic diagram of the structure of the box in the mold. Figure 5As shown, the side wall of the box body 251 may be provided with a positioning plate 2511 to further fix the position of the mold 250 and ensure the stability of the mold 250. The positioning plate 2511 is arranged on the surface of the vibration plate 210 and is fixedly connected to the vibration plate 210. For example, the positioning plate 2511 and the vibration plate 210 can be provided with aligned bolt holes and nut seats, respectively, and the two can be tightly fixed with high-strength bolts to provide a stable mechanical fixing force. Alternatively, a card slot can be provided on the vibration plate 210, and the positioning plate 2511 is equipped with a corresponding buckle structure. By simply pressing lightly or sliding, the locking of the positioning plate 2511 and the vibration plate 210 can be quickly completed. Such a design facilitates the rapid replacement of the mold 250. Of course, it is also possible to design a pin hole on the vibration plate 210 and the positioning plate 2511, and insert a metal pin to achieve a firm connection between the two. As long as the reliability and stability of the connection between the positioning plate 2511 and the vibration plate 210 can be ensured, the present embodiment does not impose any specific restrictions on the specific fixing method of the positioning plate 2511.

[0055] In addition, the positioning plate 2511 is arranged on the side wall of the box body 251. When the mold 250 needs to be transported, the positioning plate 2511 can serve as a handle, providing an operator with a point for easy gripping and manipulation. In this way, the stability and safety of the transport process can be ensured, the work efficiency is improved, and the labor intensity is reduced, thereby optimizing the entire production process.

[0056] Continue to refer to Figure 5 As shown, the outer wall of the box body 251 is also surrounded by a heating belt 2512. During the vibration molding process, the heating belt 2512 can heat the mixed material inside the mold 250, reduce the viscosity of the material, and make the material more easily distributed evenly in the mold 250, thereby optimizing the molding effect. In addition, the thermal effect of the heating belt 2512 helps to accelerate the escape of gas inside the material, reduce the generation of bubbles, and promote the elimination of internal defects of the material more quickly during the vibration and dynamic pressure of the cover plate 252, further improving the molding quality.

[0057] Figure 6 A schematic structural diagram of the vacuum assembly and base of the multi-layer vibration molding machine provided in an embodiment of the present application in a closed state. Figure 7 A schematic diagram of the structure of the multi-layer vibration compression molding machine provided in an embodiment of the present application after the vacuum cover is removed.

[0058] Reference Figure 1 , Figure 6 and Figure 7As shown, the molding machine 10 further includes a vacuum assembly 400, and the vacuum assembly 400 has an openable cover disposed on the periphery of the mold vibration assembly 200. Its design allows the vacuum assembly 400 to be sealed and fixed to the base 100 when necessary, and to perform a vacuum operation inside to provide vacuum conditions for the material inside the mold 250.

[0059] Specifically, the vacuum assembly 400 includes a vacuum cover 410 , and the vacuum cover 410 includes a cover body 411 and a top plate assembly 412 . The cover body 411 is disposed around the outer periphery of the mold vibration assembly 200 , and the top plate assembly 412 is disposed on the top of the cover body 411 .

[0060] Among them, the top plate assembly 412 includes a lifting plate 4121, and a lifting assembly 4122 is connected between the lifting plate 4121 and the base 100. The lifting assembly 4122 can be used to drive the vacuum cover 410 to lift and lower, so that the vacuum cover 410 can be flexibly opened or closed according to the needs of the molding process, ensuring that the mold vibration assembly 200 is sealed in a vacuum environment when needed. Exemplarily, the lifting assembly 4122 can be a hydraulic guide rail assembly, and the hydraulic guide rail assembly can be composed of a hydraulic pump (not shown in the figure), a control valve (not shown in the figure), a hydraulic cylinder (not shown in the figure) and a hydraulic guide rail (not shown in the figure). When the hydraulic pump is working, the hydraulic oil can be delivered to the hydraulic cylinder to push the piston to move, thereby driving the vacuum cover 410 to slide along the hydraulic guide rail. The high load capacity of the hydraulic guide rail assembly ensures a strong lifting force and stability during the lifting process, so that the movement of the vacuum cover 410 is smooth and reliable.

[0061] The top plate assembly 412 also includes a support plate 4123 and a guide rail 4124 connected to the support plate 4123. The support plate 4123 is mounted on the top of the cover body 411 and is located below the lifting plate 4121, and through holes may be spaced apart on its periphery. The guide rail 4124 may pass through the through hole and be fixedly connected to the base 100. The guide rail 4124 may provide stable support for the vacuum cover 410, ensuring that the vacuum cover 410 will not shift due to vibration during the molding process. In addition, the guide rail 4124 may ensure the stability and accuracy of the vacuum cover 410 during the lifting operation, avoiding tilting or offset, thereby ensuring the sealing of the vacuum environment and the stability of the molding process.

[0062] Continue to refer to Figure 1 and Figure 6 As shown, the vacuum assembly 400 also includes an observation window 420 and a lighting lamp 430. The observation window 420 can provide a clear viewing angle, and the lighting lamp 430 can ensure that the field of view inside the vacuum cover 410 is clearer, so that the operator can intuitively monitor the state of the material in the vacuum cover 410 without destroying the vacuum environment, which helps to promptly discover and solve problems that may arise during the molding process.

[0063] During the operation of the molding machine 10 , the vacuum cover 410 is firstly driven to rise by the lifting assembly 4122 , so that the operator can install the mold vibration assembly 200 inside the molding machine 10 and perform other operations.

[0064] Then, the lifting assembly 4122 is driven to drive the vacuum cover 410 to descend until the vacuum cover 410 is sealed and fixed to the base 100. The vacuum cover 410 is evacuated to provide vacuum conditions for the material inside the mold 250, so that the material is in a vacuum state. The vacuum state can provide a large negative pressure environment, and the negative pressure can increase the density of the lower part of the material and make the density of the upper part relatively small, so that the bubbles inside the material rise to the surface and are eliminated.

[0065] After a period of vacuum degassing and molding, the lifting assembly 4122 is driven again to drive the vacuum cover 410 to rise, so that the mold 250 gradually returns to normal pressure. In this way, the remaining bubbles can be further eliminated, and the material density is uniformed, ensuring the overall consistency and quality of the molded product.

[0066] The molding machine 10 provided in this embodiment can effectively improve the compactness of the material, ensure the uniform distribution of the material components, and reduce internal defects, and can be widely used in the preparation of solid buoyancy materials.

[0067] Taking the solid buoyancy material composed of epoxy resin system, vinyl resin system and light filler solution as an example, the working process of the molding machine 10 provided in this embodiment is introduced. Among them, the epoxy resin system is composed of E44 and E54 resins, n-butyl glycidyl ether diluent, curing agent, coupling agent KH560, and polyethylene glycol borate defoamer and dispersant. The vinyl resin system contains vinyl resin, vinyl toluene diluent, coupling agent KH570, defoamer, dispersant, cobalt isooctanoate accelerator and isopropylbenzene hydroperoxide initiator. The light filler solution uses hollow glass microspheres and organic expanded microspheres to reduce density and maintain strength.

[0068] In the operation process of the molding machine 10, the resin system is first added to the mixing drum in batches, stirred evenly, and then transferred to the kneader for further stirring. Then, hollow glass microspheres and organic expanded microspheres are added in batches, and vacuum extraction technology is used to ensure that the light filler is evenly dispersed in the resin system. The kneader stirs for at least 30 minutes to control the viscosity of the mixed material to 5000 to 10000 mPa·s, and the volume filling rate of the light filler is controlled within 69%, ensuring the uniformity of the mixed material and suitable processing performance.

[0069] Afterwards, the vacuum cover 410 is driven to rise by the lifting assembly 4122 to fill the mixed material into the mold 250 , and the mold 250 is placed between the positioning groove 211 of the vibration plate 210 and the pressing plate 240 , and is fixedly connected to the vibration plate 210 via the positioning plate 2511 .

[0070] The driving lifting assembly 4122 drives the vacuum cover 410 to descend and seal and fix it with the base 100. The interior is evacuated to -0.1MPa, and the top lighting lamp 430 is turned on at the same time, and the material is heated to a suitable temperature through the heating belt 2512. The vibration motor 300 is turned on and the vibration is maintained under the vacuum state for 5min to 30min. Then the vacuum cover 410 is restored to normal pressure and the vibration is continued for 30min to 1h.

[0071] After the vibration is finished, the driving lifting assembly 4122 drives the vacuum cover 410 to rise, the heating belt 2512 is turned off, the mold 250 is taken out and placed in the oven to continue to solidify. After solidification, the material is taken out from the mold 250 to obtain a solid buoyancy material.

[0072] It should be noted that, when any cross section of the solid buoyancy material manufactured by the molding machine 10 provided in this embodiment is cut, it can be observed that there are very few internal dense defects, the density of the solid buoyancy material is about 0.4g / cm3, and the compression strength is about 22MPa.

[0073] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-layer vibration molding machine, characterized in that: include: Base; At least two layers of mold vibration components, the mold vibration components include a vibration plate, a fixed plate, a pressure plate and a mold, the fixed plate is located above the vibration plate, the pressure plate is elastically connected to the side of the fixed plate facing the vibration plate, and the mold is clamped between the vibration plate and the pressure plate; the vibration plate is elastically connected to the base or the lower fixed plate, and the fixed plate is fixedly connected to the base; The vibration motor is installed on the base and transmits vibration energy to the vibration plate at the bottom layer.

2. The multi-layer vibration compression molding machine according to claim 1, characterized in that: The vibration plate is provided with a positioning groove, and the bottom of the mold is located in the positioning groove.

3. The multi-layer vibration compression molding machine according to claim 2, characterized in that: A positioning plate extends out from the side wall of the mold, the positioning plate is abutted against the surface of the vibration plate, and the positioning plate is fixedly connected to the vibration plate.

4. The multi-layer vibration compression molding machine according to any one of claims 1 to 3, characterized in that: The mold comprises: Box; A cover plate, arranged on the top of the box body; The heating belt is arranged around the outer side wall of the box body.

5. The multi-layer vibration compression molding machine according to any one of claims 1 to 3, characterized in that: The vibration plate and the base, and the vibration plate and the lower fixed plate are connected via a plurality of first springs, and the first springs are arranged at intervals along the circumference of the vibration plate.

6. The multi-layer vibration compression molding machine according to any one of claims 1 to 3, characterized in that: The pressing plate and the fixing plate are connected via a plurality of second springs, and the second springs are arranged at intervals along the circumference of the pressing plate.

7. The multi-layer vibration compression molding machine according to any one of claims 1 to 3, characterized in that: Also includes: A vacuum component, an openable and closable cover is arranged outside the mold vibration component, and is used to provide a vacuum environment for the mold.

8. The multi-layer vibration compression molding machine according to claim 7, characterized in that: The vacuum assembly comprises: A vacuum cover, which can be opened and closed, is arranged outside the mold vibration assembly; The lifting assembly is connected between the vacuum cover and the base and is used for driving the vacuum cover to lift.

9. The multi-layer vibration compression molding machine according to claim 8, characterized in that: The vacuum hood comprises: Cover body; A top plate assembly is arranged at the top of the cover body and connected to the lifting assembly.

10. The multi-layer vibration compression molding machine according to claim 9, characterized in that: The top plate assembly comprises: A lifting plate connected to the lifting assembly; A support plate is connected to the top of the cover body and is connected below the lifting plate.

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