Waterproof luggage composite material forming device

Abstract

The utility model belongs to the field of luggage composite material processing technology, and disclose a waterproof type luggage composite material forming device, including operation platform, the surface of operation platform is equipped with exhaust pressure closing subassembly, exhaust pressure closing subassembly includes the load platform of installing operation platform upper surface and the support frame of installing operation platform upper surface and the sealing cover for exhaust pressure closing, hot press board, main suction pipe, branch pipe, negative pressure pump body, hydraulic cylinder no.

Description

Technical Field

[0001] This utility model belongs to the field of bag composite material processing technology, specifically a waterproof bag composite material molding device. Background Technology

[0002] With the increasing popularity of outdoor travel and cross-border travel, consumers' demand for waterproof, wear-resistant, and environmentally friendly luggage continues to rise, driving the luggage industry towards functional upgrades. Waterproof luggage has become one of the mainstream products in the market. According to relevant data, in 2023, the market share of functional luggage (including waterproof functions) reached 15.6%, with new waterproof coating products growing at a rate exceeding 20%. It is estimated that the market size of China's waterproof bag industry will exceed 9.5 billion yuan by 2025. The core performance of waterproof luggage depends on the molding quality of its composite materials, and the performance of the composite material molding equipment directly determines the product quality and market competitiveness of waterproof luggage.

[0003] Currently, most existing waterproof bag composite material molding devices adopt traditional hot pressing structures, which mainly achieve the composite of multiple layers of materials by pressing and heating a single hot pressing plate. However, there are many technical defects in their practical applications. Existing devices lack effective exhaust mechanisms, and air is easily left between multiple layers of materials during the hot pressing process, which cannot be discharged in time.

[0004] This leads to defects such as bubbles and pores forming inside the composite layer, which not only damages the structural integrity of the composite material and reduces its mechanical properties, but also disrupts the continuity of the waterproof coating, resulting in a decrease in waterproof performance and problems such as water seepage and leakage, seriously affecting the product qualification rate.

[0005] Therefore, a waterproof bag composite material molding device is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a waterproof bag composite material molding device, which can expel air between multiple layers of materials, avoid the formation of air bubbles inside the composite layer, and make the substrate layers fit tightly and bond firmly, thereby improving the mechanical strength, structural stability and service life of the composite material.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a waterproof bag composite material molding device, including an operating table;

[0008] The surface of the operating table is equipped with an exhaust pressure assembly, which includes a support platform installed on the upper surface of the operating table, a support frame installed on the upper surface of the operating table, and a sealing cover, a hot press plate, a main extraction pipe, a branch pipe, a negative pressure pump body, a hydraulic cylinder one, a hydraulic cylinder two, and a guide frame for exhaust pressure.

[0009] The surface of the sealing cover is equipped with a sealing and venting assembly, which includes a sealing plate installed on the bottom surface of the sealing cover, a sealing groove formed on the surface of the support platform, and a sealing ring for sealing.

[0010] Preferably, the sealing cover is disposed at the bottom of the support frame, the hot press plate is disposed inside the sealing cover, the main extraction pipe is installed on the outer periphery of the sealing cover, a plurality of branch pipes are evenly distributed and installed on the surface of the main extraction pipe and connected to the sealing cover, the negative pressure pump body is installed on one side surface of the sealing cover, and the output end of the negative pressure pump body is connected to the main extraction pipe, the guide frame is slidably connected in a through hole opened on the surface of the support frame, and the guide frame passes through the support frame and is connected to the sealing cover, the first hydraulic cylinder is installed on the upper surface of the support frame, and the telescopic end of the first hydraulic cylinder passes through the support frame and is connected to the guide frame, the second hydraulic cylinder is installed on the upper surface of the sealing cover, and the telescopic end of the second hydraulic cylinder passes through the sealing cover and is connected to the hot press plate.

[0011] Preferably, a plurality of the branch pipes are arranged in an array around the main pipe in the circumferential direction.

[0012] Preferably, a sealing sleeve is installed at the sliding position where the extension end of the hydraulic cylinder two cooperates with the sealing cover.

[0013] Preferably, T-shaped blocks are symmetrically installed on the outer shell of the hot press plate, and the surface of the sealing cover is provided with a T-shaped groove that matches the T-shaped block, and the T-shaped block is slidably connected in the T-shaped groove.

[0014] Preferably, the sealing plate is inserted into the inside of the sealing groove, the sealing ring is installed on the outer periphery of the sealing cover, and the sealing ring is tightly fitted to the upper surface of the support platform.

[0015] Preferably, the sealing ring covers and seals the mating gap between the sealing plate and the sealing groove.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model, by setting up an exhaust and pressing assembly, ensures uniform air extraction through the array arrangement of branch pipes, and guarantees precise hot pressing through the guiding action of the guide frame and T-block. The layered control of hydraulic cylinder one and hydraulic cylinder two enables orderly sealing and hot pressing, and the continuous operation of the negative pressure pump ensures that residual air is completely discharged. Ultimately, it achieves high-quality molding of waterproof bag composite materials, effectively reduces the product defect rate caused by insufficient exhaust, and improves the molding quality of composite materials.

[0018] 2. This utility model incorporates a sealing and venting assembly, in which a sealing plate is inserted into the sealing groove, and a sealing ring is installed around the outer periphery of the sealing cover and closely adheres to the upper surface of the support platform, forming a double sealing structure. This significantly improves the sealing performance between the sealing cover and the support platform, effectively preventing air leakage during negative pressure venting and ensuring a stable negative pressure environment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the sealing cover and main extraction pipe of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the sealing cover and hot press plate of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the hot press plate and T-shaped block of this utility model;

[0023] Figure 5 This is a schematic diagram of the main extraction pipe and branch pipes of this utility model.

[0024] In the diagram: 1. Operating platform; 2. Exhaust and pressurization assembly; 21. Support platform; 22. Support frame; 23. Sealing cover; 24. Hot press plate; 25. Main extraction pipe; 26. Branch pipe; 27. Negative pressure pump body; 28. Hydraulic cylinder one; 29. ​​Hydraulic cylinder two; 210. Guide frame; 211. T-block; 3. Sealing and exhaust assembly; 31. Sealing plate; 32. Sealing groove; 33. Sealing ring. Detailed Implementation

[0025] 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.

[0026] like Figures 1 to 5 As shown, this utility model provides a waterproof bag composite material molding device, including an operating table 1;

[0027] The surface of the operating table 1 is equipped with an exhaust pressure assembly 2. The exhaust pressure assembly 2 includes a support platform 21 installed on the upper surface of the operating table 1, a support frame 22 installed on the upper surface of the operating table 1, and a sealing cover 23, a hot press plate 24, a main extraction pipe 25, a branch pipe 26, a negative pressure pump body 27, a hydraulic cylinder 1 28, a hydraulic cylinder 29, and a guide frame 210 for exhaust pressure.

[0028] A sealing cover 23 is located at the bottom of the support frame 22. A hot press plate 24 is located inside the sealing cover 23. A main extraction pipe 25 is installed on the outer periphery of the sealing cover 23. Several branch pipes 26 are evenly distributed on the surface of the main extraction pipe 25 and are connected to the sealing cover 23. A negative pressure pump body 27 is installed on one side surface of the sealing cover 23, and the output end of the negative pressure pump body 27 is connected to the main extraction pipe 25. A guide frame 210 is slidably connected in a through hole opened on the surface of the support frame 22, and the guide frame 210 passes through the support frame 22 and is connected to the sealing cover 23. A hydraulic cylinder 28 is installed on the upper surface of the support frame 22, and the telescopic end of the hydraulic cylinder 28 passes through the support frame 22. The support frame 22 is connected to the guide frame 210. The second hydraulic cylinder 29 is installed on the upper surface of the sealing cover 23, and the telescopic end of the second hydraulic cylinder 29 passes through the sealing cover 23 and is connected to the hot press plate 24. The array arrangement of the branch pipes 26 ensures uniform air extraction. The guiding effect of the guide frame 210 and the T-shaped block 211 ensures accurate hot pressing. The layered control of the first hydraulic cylinder 28 and the second hydraulic cylinder 29 realizes the orderly progress of sealing and hot pressing. The continuous operation of the negative pressure pump body 27 ensures that the residual air is completely discharged. Finally, the high-quality molding of waterproof bag composite material is achieved, effectively reducing the product defect rate caused by insufficient air exhaust and improving the molding quality of composite material.

[0029] Several branch pipes 26 are arranged in an array around the main extraction pipe 25 in the circumferential direction, which can realize the all-round extraction of air from the internal space of the sealing cover 23.

[0030] A sealing sleeve is installed at the sliding position of the extension end of the hydraulic cylinder 29 and the sealing cover 23, which can effectively seal the gap and prevent air from seeping into the interior of the sealing cover 23 during negative pressure exhaust and hot pressing.

[0031] T-shaped blocks 211 are symmetrically installed on the outer shell of the hot press plate 24, and a T-shaped groove adapted to the T-shaped block 211 is opened on the surface of the sealing cover 23. The T-shaped block 211 is slidably connected in this T-shaped groove, which can accurately guide the up and down movement of the hot press plate 24 and prevent the hot press plate 24 from shifting or tilting when it moves.

[0032] The sealing cover 23 is equipped with a sealing and venting assembly 3. The sealing and venting assembly 3 includes a sealing plate 31 installed on the bottom surface of the sealing cover 23, a sealing groove 32 opened on the surface of the support platform 21, and a sealing ring 33 for sealing.

[0033] The sealing plate 31 is inserted into the sealing groove 32, and the sealing ring 33 is installed on the outer periphery of the sealing cover 23. The sealing ring 33 is tightly attached to the upper surface of the support platform 21. The sealing plate 31 is inserted into the sealing groove 32, and the sealing ring 33 is installed on the outer periphery of the sealing cover 23 and tightly attached to the upper surface of the support platform 21, forming a double sealing structure. This greatly improves the sealing performance between the sealing cover 23 and the support platform 21, effectively prevents air leakage during the negative pressure exhaust process, and ensures the stability of the negative pressure environment.

[0034] The sealing ring 33 covers and seals the gap between the sealing plate 31 and the sealing groove 32, further enhancing the sealing effect.

[0035] Among them, the structures such as the negative pressure pump body 27, hydraulic cylinder one 28, and hydraulic cylinder two 29 are existing technologies, and their working principles are well-known technologies. The appropriate model is selected according to the actual use.

[0036] Working principle and process: The waterproof bag composite material to be laminated (such as waterproof coating cloth, base layer, adhesive layer, etc.) is laid flat on the upper surface of the support platform 21 according to the preset stacking order, ensuring that the edges of the composite material are aligned, without wrinkles or offset, and avoiding uneven subsequent lamination or incomplete air venting due to irregular material placement.

[0037] After feeding is completed, hydraulic cylinder 28 is activated. The telescopic end of hydraulic cylinder 28 extends downward, driving the guide frame 210 connected to it to slide downward along the through hole on the surface of the support frame 22. Simultaneously, the guide frame 210 drives the sealing cover 23 to move downward until the sealing plate 31 on the bottom surface of the sealing cover 23 is precisely inserted into the sealing groove 32 on the surface of the support platform 21. After the sealing plate 31 and the sealing groove 32 are aligned, the sealing ring 33 on the outer periphery of the sealing cover 23 is tightly fitted to the upper surface of the support platform 21, and the sealing ring 33 completely covers and seals the gap between the sealing plate 31 and the sealing groove 32, achieving a full seal between the sealing cover 23 and the support platform 21, creating a closed composite exhaust space, providing a sealing guarantee for subsequent negative pressure exhaust; at the same time, hydraulic cylinder 28 remains extended, applying continuous downward pressure to the sealing cover 23 to ensure stable sealing effect and avoid air leakage during subsequent air extraction.

[0038] The guide frame 210 serves as a guide and positioner to prevent the sealing cover 23 from shifting downwards, ensuring that the sealing plate 31 can be accurately inserted into the sealing groove 32 and avoiding sealing failure due to misalignment.

[0039] After the sealed space is constructed, the negative pressure pump body 27 is started. The negative pressure pump body 27 starts to work and pumps air into the sealed space through the main extraction pipe 25 connected to the output end. Several branch pipes 26 arranged in a circumferential array on the surface of the main extraction pipe 25 exert force simultaneously to achieve all-round and uniform air extraction into the internal space of the sealed cover 23, avoiding the problem of insufficient local air extraction.

[0040] During the evacuation process, the air inside the sealing cover 23 (including the residual air between the multi-layer composite materials and the residual air between the composite materials and the hot press plate 24 and the support platform 21) is collected into the main evacuation pipe 25 through the branch pipe 26 and then extracted to the outside of the device by the negative pressure pump body 27. The evacuation time is set according to the thickness and number of layers of the composite materials, usually 30-60 seconds, to ensure that the residual air is completely discharged until the interior of the sealing cover 23 reaches the preset negative pressure value. The negative pressure pump body 27 keeps running to maintain the internal negative pressure environment.

[0041] After confirming that the air inside the sealing cover 23 has been completely expelled and the negative pressure environment has stabilized, the second hydraulic cylinder 29 is started. The telescopic end of the second hydraulic cylinder 29 extends downward, driving the hot press plate 24 to move towards the support platform 21. During the movement of the hot press plate 24, the T-shaped blocks 211 on both sides slide smoothly along the T-shaped grooves on the inner wall of the sealing cover 23, playing a guiding role and ensuring that the hot press plate 24 can accurately and evenly press onto the surface of the composite material, avoiding the hot press plate 24 from shifting and causing uneven composite.

[0042] After the hot press plate 24 comes into contact with the composite material, the hydraulic cylinder 29 continuously applies a preset pressure, while the hot press plate 24 continuously releases heat to hot press the multi-layer composite material. During the hot pressing process, the negative pressure pump 27 runs continuously to maintain the negative pressure environment inside the sealing cover 23. If there is a small amount of residual air inside the composite material, it can be further discharged by continuous air extraction to ensure that there are no bubbles or pores inside the composite layer.

[0043] During the pressure holding and shaping process, the negative pressure pump body 27 remains in operation to maintain the negative pressure environment inside the sealing cover 23, further preventing air infiltration and ensuring composite quality; at the same time, the operating status of each component is continuously checked to ensure that the hydraulic pressure, temperature and negative pressure value are all kept within the preset range without abnormal fluctuations.

[0044] After the pressure holding and shaping are completed, first close the negative pressure pump body 27, and slowly open the pressure relief valve (the device is equipped with it to release the negative pressure inside the sealing cover 23) so that the pressure inside the sealing cover 23 gradually returns to atmospheric pressure, avoiding sudden pressure changes that could damage the molded composite material.

[0045] After the negative pressure is completely released, hydraulic cylinder 29 is activated to retract its telescopic end upwards, which drives the hot press plate 24 to move upwards until the hot press plate 24 returns to its initial position and is completely separated from the molded composite material; then, hydraulic cylinder 28 is activated to retract its telescopic end upwards, which drives the guide frame 210 and the sealing cover 23 to move upwards until the sealing plate 31 is completely separated from the sealing groove 32 and the sealing cover 23 is away from the support platform 21.

[0046] After the sealing cover 23 is opened, the operator carefully removes the molded waterproof bag composite material from the support platform 21, checks the molding quality of the composite material (no defects such as bubbles, pores, delamination, or water seepage), and completes one molding process; if continuous production is required, the above operation can be repeated.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof bag composite material molding device, comprising an operating table (1); Its features are: The surface of the operating table (1) is equipped with an exhaust pressing assembly (2). The exhaust pressing assembly (2) includes a support platform (21) installed on the upper surface of the operating table (1), a support frame (22) installed on the upper surface of the operating table (1), and a sealing cover (23), a hot press plate (24), a main extraction pipe (25), a branch pipe (26), a negative pressure pump body (27), a hydraulic cylinder one (28), a hydraulic cylinder two (29), and a guide frame (210). The sealing cover (23) is equipped with a sealing venting assembly (3), which includes a sealing plate (31) installed on the bottom surface of the sealing cover (23), a sealing groove (32) formed on the surface of the support platform (21), and a sealing ring (33) for sealing.

2. The waterproof bag composite material molding device according to claim 1, characterized in that: The sealing cover (23) is disposed at the bottom of the support frame (22), the hot press plate (24) is disposed inside the sealing cover (23), the main extraction pipe (25) is installed on the outer periphery of the sealing cover (23), a plurality of branch pipes (26) are evenly distributed on the surface of the main extraction pipe (25) and are connected to the sealing cover (23), the negative pressure pump body (27) is installed on one side surface of the sealing cover (23), and the output end of the negative pressure pump body (27) is connected to the main extraction pipe (25), and the guide frame (210) is slidably connected to the support frame (22). The support frame (22) has a through hole on its surface, and the guide frame (210) passes through the support frame (22) and is connected to the sealing cover (23). The first hydraulic cylinder (28) is installed on the upper surface of the support frame (22), and the telescopic end of the first hydraulic cylinder (28) passes through the support frame (22) and is connected to the guide frame (210). The second hydraulic cylinder (29) is installed on the upper surface of the sealing cover (23), and the telescopic end of the second hydraulic cylinder (29) passes through the sealing cover (23) and is connected to the hot press plate (24).

3. The waterproof bag composite material molding device according to claim 1, characterized in that: Several of the branch pipes (26) are arranged in an array around the main pipe (25) in the circumferential direction.

4. The waterproof bag composite material molding device according to claim 1, characterized in that: A sealing sleeve is installed at the sliding position of the extension end of the hydraulic cylinder (29) and the sealing cover (23).

5. The waterproof bag composite material molding device according to claim 1, characterized in that: T-shaped blocks (211) are symmetrically installed on the outer shell of the hot press plate (24), and a T-shaped groove adapted to the T-shaped block (211) is opened on the surface of the sealing cover (23), and the T-shaped block (211) is slidably connected in this T-shaped groove.

6. The waterproof bag composite material molding device according to claim 1, characterized in that: The sealing plate (31) is inserted into the inside of the sealing groove (32), the sealing ring (33) is installed on the outer periphery of the sealing cover (23), and the sealing ring (33) is tightly attached to the upper surface of the support platform (21).

7. The waterproof bag composite material molding device according to claim 1, characterized in that: The sealing ring (33) covers and seals the mating gap between the sealing plate (31) and the sealing groove (32).

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