A hot press forming die for low carbon bio-based composites

Abstract

The utility model relates to hot-pressing mould field discloses a kind of hot-pressing forming mould for low-carbon bio-based composite material, including base, the top of the base is fixedly connected with mounting bracket, the lower part of the mounting bracket is provided with hydraulic cylinder, the lower part left side of the mounting bracket is provided with blowing assembly, the top of the base is provided with lower die plate, the lower part of the hydraulic cylinder is provided with upper die plate;The middle part of the lower die plate is provided with clamping groove, the lower part of the clamping groove is provided with auxiliary groove, the rear side of the auxiliary groove is provided with connecting cavity;The blowing assembly includes empty pipe.The utility model, by setting blowing assembly and the cooperation between lower die plate and sealing block, spring and other components, gas in empty pipe can be driven to blow to lower die plate when upper mould moves upwards, so that gas can assist product stripping, spring and sealing block can further promote product stripping, more practical.

Description

Technical Field

[0001] This utility model relates to the field of hot pressing molds, and in particular to a hot pressing mold for low-carbon bio-based composite materials. Background Technology

[0002] Low-carbon bio-based composite materials are a class of biomass-based composite materials with low carbon emissions and environmental protection characteristics. These materials combine natural fibers or renewable biological resources with matrix materials, aiming to replace traditional petroleum-based plastics or composite materials and reduce the environmental burden. Low-carbon bio-based composite materials can be formed by processing methods such as hot pressing. When using hot pressing, hot pressing molds are often required.

[0003] Some existing traditional hot press molds, even with the application of release agent before hot pressing, still result in some products failing to demold smoothly, requiring manual removal of the molded product for demolding. This is time-consuming and labor-intensive, leading to reduced production efficiency and impracticality. Therefore, a hot press mold for low-carbon bio-based composite materials is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a hot pressing mold for low-carbon bio-based composite materials. It aims to improve the problem that some existing traditional hot pressing molds, even though a release agent is applied before hot pressing, still cannot demold smoothly during demolding, requiring manual removal of the molded product for demolding, which is time-consuming and labor-intensive.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a hot-press molding die for low-carbon bio-based composite materials, comprising a base, a mounting frame fixedly connected to the top of the base, a hydraulic cylinder disposed at the lower part of the mounting frame, an air blowing assembly disposed on the lower left side of the mounting frame, a lower template disposed at the top of the base, and an upper template disposed at the lower part of the hydraulic cylinder; a slot is formed in the middle of the lower template, an auxiliary groove is formed at the lower part of the slot, and a connecting cavity is formed at the rear side of the auxiliary groove; the air blowing assembly comprises an empty tube, the empty tube is fixedly connected to the mounting frame, a pull rod is movably connected through the middle of the empty tube, a piston plate is fixedly connected to the top of the pull rod, the piston plate is piston-connected to the empty tube, a connecting plate is fixedly connected to the bottom of the pull rod, the connecting plate is fixedly connected to the upper template, the empty tube is connected to the connecting cavity through a flexible hose, and the flexible hose is fixedly connected to the lower template.

[0006] As a further description of the above technical solution:

[0007] The lower part of the auxiliary groove has a sliding cavity.

[0008] As a further description of the above technical solution:

[0009] A sealing component is provided in the middle of the lower template, and positioning rods are fixedly connected to the top front, back, left and right sides of the lower template.

[0010] As a further description of the above technical solution:

[0011] The positioning rod has an inclined surface on the side near the sealing component.

[0012] As a further description of the above technical solution:

[0013] The sealing component includes a sealing block, which is movably connected to a slot. A connecting rod is fixedly connected to the lower part of the sealing block. The connecting rod passes through and is slidably connected to the lower template. A limit block is fixedly connected to the bottom end of the connecting rod, and the limit block is slidably connected to the sliding cavity.

[0014] As a further description of the above technical solution:

[0015] The sealing block and the auxiliary groove are both fixedly connected by a spring.

[0016] As a further description of the above technical solution:

[0017] The air blowing assembly also includes multiple positioning rings, and the hose passes through the multiple positioning rings. The positioning rings are fixedly connected to the mounting bracket.

[0018] As a further description of the above technical solution:

[0019] The upper template has positioning grooves on its front, back, left, and right sides, and the positioning rod is movably connected to the positioning grooves.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, by setting up the air blowing component and the lower template, as well as the sealing block, spring and other components to cooperate with each other, the upper mold can drive the gas in the empty tube to blow down to the lower template when it moves upward, so that the gas can assist the product to be demolded, and the spring and sealing block can further push the product to be demolded, which is more practical.

[0022] 2. In this utility model, by setting up the cooperation between the sealing block and the slot and other components, the sealing block can block the slot when the mold is hot pressing the material, thereby preventing the slot from affecting the product molding, which is more practical. Attached Figure Description

[0023] Figure 1This is a schematic diagram of the overall three-dimensional structure of a hot pressing mold for low-carbon bio-based composite materials proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the overall lower three-dimensional structure of a hot pressing mold for low-carbon bio-based composite materials proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the overall three-dimensional structure of the lower template of a hot pressing mold for low-carbon bio-based composite materials proposed in this utility model.

[0026] Figure 4 This is a three-dimensional cross-sectional view of the lower template of a hot pressing mold for low-carbon bio-based composite materials proposed in this utility model.

[0027] Figure 5 This is a three-dimensional cross-sectional view of the lower template structure when the sealing component of a hot pressing mold for low-carbon bio-based composite materials is pressed down, as proposed in this utility model.

[0028] Figure 6 This is a three-dimensional cross-sectional structural diagram of the air blowing component of a hot pressing mold for low-carbon bio-based composite materials proposed in this utility model.

[0029] Legend:

[0030] 1. Base; 2. Mounting bracket; 3. Lower template; 4. Upper template; 5. Hydraulic cylinder; 6. Air blowing assembly; 301. Slot; 302. Auxiliary slot; 303. Connecting cavity; 304. Sliding cavity; 61. Empty pipe; 62. Tie rod; 63. Connecting plate; 64. Piston plate; 65. Hose; 66. Positioning ring; 41. Positioning slot; 31. Positioning rod; 32. Sealing component; 321. Sealing block; 322. Connecting rod; 323. Spring; 324. Limiting block. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1-2This utility model provides an embodiment of a hot pressing mold for low-carbon bio-based composite materials, including a base 1 for connecting various components. A mounting frame 2 is fixedly connected to the top of the base 1 for mounting various components. A hydraulic cylinder 5 is provided at the lower part of the mounting frame 2 for pressing the upper template 4 downward to facilitate the hot pressing of the low-carbon bio-based composite material. An air blowing component 6 is provided on the lower left side of the mounting frame 2, which is controlled by the up-and-down movement of the upper template 4 and is used to assist in the demolding of the product. The air blowing component 6 and the sealing component 32 can also be set on the upper template 4 according to the actual demolding situation, or the upper and lower molds can be set together. A lower template 3 is provided at the top of the base 1 for cooperating with the upper template 4 to perform hot pressing of the low-carbon bio-based composite material. The upper template 4 is provided at the lower part of the hydraulic cylinder 5. Positioning grooves 41 are provided on the front, back, left, and right sides of the bottom of the upper template 4 for connecting with positioning rods 31. The positioning rods 31 are movably connected to the positioning grooves 41.

[0033] like Figures 3-5 As shown, a slot 301 is provided in the middle of the lower template 3, which is used to connect with the sealing component 32 and to facilitate the outflow of air blown by the air blowing component 6. Its shape is adapted to the sealing block 321. An auxiliary slot 302 is provided at the lower part of the slot 301, which is used to install the spring 323. A connecting cavity 303 is provided on the rear side of the auxiliary slot 302. A sliding cavity 304 is provided at the lower part of the auxiliary slot 302, which is used to connect with the limiting block 324. The sealing component 32 is provided in the middle of the lower template 3. Positioning rods 31 are fixedly connected to the front, back, left and right sides of the top of the lower template 3. The side of the positioning rod 31 near the sealing component 32 is provided with an inclined surface, which is used to guide the material into the lower mold groove.

[0034] Furthermore, the sealing component 32 includes a sealing block 321, the top shape of which is adapted to the lower mold groove. The sealing block 321 is movably connected to the slot 301. A connecting rod 322 is fixedly connected to the lower part of the sealing block 321 for connecting various components. The connecting rod 322 passes through and is slidably connected to the lower mold plate 3. A limiting block 324 is fixedly connected to the bottom end of the connecting rod 322 for preventing the sealing component 32 from separating from the lower mold plate 3. The limiting block 324 is slidably connected to the sliding cavity 304. A spring 323 is fixedly connected between the sealing block 321 and the auxiliary groove 302 for cooperating with the position movement and reset of the sealing block 321.

[0035] like Figure 2 and Figure 6As shown, the air blowing assembly 6 includes an empty tube 61, which is used to connect various components. The empty tube 61 is fixedly connected to the mounting bracket 2. A pull rod 62 is movably connected through the middle of the empty tube 61. A piston plate 64, which may be made of rubber, is fixedly connected to the top of the pull rod 62. The piston plate 64 is piston-connected to the empty tube 61 and is used to facilitate the intake and exhaust of airflow. A connecting plate 63 is fixedly connected to the bottom of the pull rod 62. The connecting plate 63 is fixedly connected to the upper template 4 and is used to facilitate the connection between the upper template 4 and the pull rod 62. The empty tube 61 is connected to the connecting cavity 303 through a hose 65, which is used to facilitate the flow of gas. The hose 65 is fixedly connected to the lower template 3. The air blowing assembly 6 also includes multiple positioning rings 66, which are used to assist in the installation and limiting of the hose 65 to prevent the hose 65 from obstructing the normal use of the mold. The hose 65 passes through multiple positioning rings 66, and the positioning rings 66 are fixedly connected to the mounting bracket 2.

[0036] Working principle: In use, the low-carbon bio-based composite material to be hot-pressed is first placed on the lower template 3. Multiple positioning rods 31 position the auxiliary material. Then, the hydraulic cylinder 5 is turned on, causing the upper template 4 to move downward. When the upper template 4 moves downward, the pull rod 62 connected to it through the connecting plate 63 will be pulled downward, so that the empty tube 61 draws gas into the interior through the hose 65 until the upper template 4 and the lower template 3 are pressed together. The positioning rod 31 is inserted into the positioning groove 41. At this time, the empty tube 61 will be filled with gas. At the same time, due to the pressure of the upper template 4, the sealing block 321 will be pushed into the slot 301. The connecting rod 322 will then drive the limiting block 324 plate to slide downward in the sliding cavity 304, and the spring 323 will be compressed.

[0037] After the low-carbon bio-based composite material is hot-pressed, the upper template 4 can be reset upward by the hydraulic cylinder 5. At this time, the connecting rod 62 connected to the connecting plate 63 will be driven upward, so that the piston plate 64 pushes the gas in the empty tube 61 through the hose 65 to be delivered into the lower template 3. The gas will be blown into the auxiliary groove 302 through the connecting cavity 303 and blown out through the slot 301. At this time, since the upper template 4 is away from the lower template 3, the pressure on the spring 323 will be released. The spring 323 will then push the sealing block 321 to reset. Under the push of the sealing block 321 and the blowing of the gas, the product in the template will be demolded so that the staff can take it out.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hot pressing mold for low-carbon bio-based composite materials, comprising a base (1), characterized in that: The base (1) is fixedly connected to the top of the mounting frame (2), the lower part of the mounting frame (2) is provided with a hydraulic cylinder (5), the lower left side of the mounting frame (2) is provided with an air blowing component (6), the top of the base (1) is provided with a lower template (3), and the lower part of the hydraulic cylinder (5) is provided with an upper template (4). The lower template (3) has a slot (301) in the middle, an auxiliary slot (302) in the lower part of the slot (301), and a connecting cavity (303) in the rear side of the auxiliary slot (302). The air blowing assembly (6) includes an empty tube (61), which is fixedly connected to the mounting bracket (2). A pull rod (62) is movably connected through the middle of the empty tube (61). A piston plate (64) is fixedly connected to the top of the pull rod (62). The piston plate (64) is piston-connected to the empty tube (61). A connecting plate (63) is fixedly connected to the bottom of the pull rod (62). The connecting plate (63) is fixedly connected to the upper template (4). The empty tube (61) is connected to the connecting cavity (303) through a hose (65). The hose (65) is fixedly connected to the lower template (3).

2. The hot pressing mold for low-carbon bio-based composite materials according to claim 1, characterized in that: The lower part of the auxiliary groove (302) is provided with a sliding cavity (304).

3. A hot pressing mold for low-carbon bio-based composite materials according to claim 2, characterized in that: A sealing component (32) is provided in the middle of the lower template (3), and positioning rods (31) are fixedly connected to the front, back, left and right sides of the top of the lower template (3).

4. A hot pressing mold for low-carbon bio-based composite materials according to claim 3, characterized in that: The positioning rod (31) has a bevel on the side near the sealing member (32).

5. A hot pressing mold for low-carbon bio-based composite materials according to claim 3, characterized in that: The sealing component (32) includes a sealing block (321), which is movably connected to the slot (301). A connecting rod (322) is fixedly connected to the lower part of the sealing block (321). The connecting rod (322) is slidably connected to the lower template (3). A limiting block (324) is fixedly connected to the bottom end of the connecting rod (322). The limiting block (324) is slidably connected to the sliding cavity (304).

6. A hot pressing mold for low-carbon bio-based composite materials according to claim 5, characterized in that: A spring (323) is fixedly connected between the sealing block (321) and the auxiliary groove (302).

7. A hot pressing mold for low-carbon bio-based composite materials according to claim 1, characterized in that: The air blowing assembly (6) also includes multiple positioning rings (66), and the hose (65) passes through the multiple positioning rings (66), and the positioning rings (66) are fixedly connected to the mounting bracket (2).

8. A hot pressing mold for low-carbon bio-based composite materials according to claim 3, characterized in that: The upper template (4) has positioning grooves (41) on the front, back, left and right sides of its bottom surface, and the positioning rod (31) is movably connected to the positioning grooves (41).

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