Automatic demolding hot-pressing mold

Abstract

The utility model discloses an automatic demolding hot-pressing mold, and particularly relates to the technical field of hot-pressing molds, the automatic demolding hot-pressing mold comprises a hydraulic workbench, the hydraulic workbench comprises an upper seat and a lower seat, the upper seat and the lower seat are fixed through two stand columns, a hydraulic cylinder is fixedly arranged at the bottom end of the upper seat, and a hot-pressing plate is arranged at the bottom end of the hydraulic cylinder. A hot-pressing template is arranged below the hot-pressing plate, limiting plates are fixedly arranged on the two sides of the top end of the lower base, the two limiting plates are arranged between the hot-pressing template and the two stand columns correspondingly and used for assisting the hot-pressing template in discharging, and heating assemblies are arranged at the bottom of the hot-pressing template and the top of the hot-pressing plate correspondingly. According to the utility model, the hot-pressing template is limited through the limiting block, automatic demolding of a profile on the hot-pressing template can be realized, so that the production efficiency can be improved, the production safety can be ensured, the pore channels are formed in the hot-pressing plate, the profile can be uniformly heated, water vapor can be timely discharged, and meanwhile, the pressure of the hydraulic cylinder can be timely adjusted as required.

Description

Technical Field

[0001] The utility model relates to the technical field of hot pressing dies, and more specifically to a hot pressing die with automatic demoulding. Background Technique

[0002] The raw materials of fiberboard mainly come from corn straw, but are not limited to corn straw, and can also be wheat, soybean straw, etc. China is rich in biomass resources. The biomass energy resources available for development in China, represented by agricultural and forestry waste such as corn straw and rice straw, can reach at least 450 million tons. After the straw is hydrolyzed to extract xylose, the remaining straw residue, mainly composed of lignin and cellulose, can be used as the raw material for making ecological fiberboard. Medium-density fiberboard in China uses agricultural residues or small and inferior firewood as the main raw materials, and its main components are wood fibers, resin glue, etc. It is an environment-friendly furniture building material substitute for logs formed after hot grinding, drying, sizing, paving, hot pressing, post-treatment, and sanding. Its main advantages are relatively low price compared to logs, easy processing, uniform material, good physical properties, and waterproof and moisture-proof after adding items such as paraffin.

[0003] During the hot pressing process of traditional medium-density fiberboard, there is a sizing process, which sizes the fibers. The fibers in the discharge pipe are in a high-speed flow state, and the glue liquid is atomized and evenly sprayed on the fiber surface. Curing agents, formaldehyde scavengers, etc. can be added to the glue tank for stirring. During the paving process, the sized raw materials will be affected by the high temperature of the press, resulting in premature thermal curing of the adhesive, which deteriorates the product quality.

[0004] Currently, during the hot pressing process of fiberboard, only manual demoulding can be carried out. After the board is hot pressed and formed, it cannot be automatically demoulded, which results in low production efficiency and potential safety hazards. Based on this, the utility model provides a hot pressing template with automatic demoulding. Content of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a hot pressing die with automatic demoulding. By using a limiting block to limit the hot pressing template, automatic demoulding of the profiles on the hot pressing template can be realized, thereby improving production efficiency, ensuring production safety, and there are channels in the hot pressing plate to enable the profiles to be evenly heated and timely discharge water vapor, and at the same time, the pressure of the hydraulic cylinder can be adjusted in time according to needs, so as to solve the problems appearing in the above-mentioned background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: A hot pressing mold with automatic demolding, including a hydraulic workbench, the hydraulic workbench includes an upper seat and a lower seat, the lower seat and the upper seat are fixed by two columns, a hydraulic cylinder is fixedly arranged at the bottom end of the upper seat, a hot pressing plate is arranged at the bottom end of the hydraulic cylinder, a hot pressing template is arranged below the hot pressing plate, limiting plates are fixedly arranged on both sides of the top end of the lower seat, and the two limiting plates are respectively arranged between the hot pressing template and the two columns, for assisting the hot pressing template to discharge materials, heating components are arranged at the bottom of the hot pressing template and the top of the hot pressing plate, and the two heating components both include heating plates, and the two heating plates are respectively fixed at the top end of the hot pressing plate and the bottom end of the hot pressing template.

[0007] In a preferred embodiment, drainage grooves are formed on the sides of the two heating plates close to each other, and a plurality of heating holes are formed on the sides of the two heating plates away from each other. A heating rod is fixedly arranged inside each heating hole. The heating rod is used to heat the heating plate, and the heat is conducted to the hot pressing plate and the hot pressing template through the heating plate, so as to facilitate hot pressing of the profile.

[0008] In a preferred embodiment, drainage holes are formed on both sides of the two heating plates, and the drainage holes are communicated with the drainage grooves.

[0009] In a preferred embodiment, a plurality of communicating channels are arranged inside the hot pressing plate and the hot pressing template, so that the heat distribution inside the hot pressing plate and the hot pressing template is uniform, thereby improving the hot pressing effect of the profile.

[0010] In a preferred embodiment, detachable intake hoses are fixedly arranged on one side of the hot pressing plate and one side of the hot pressing template, and detachable outlet hoses are fixedly arranged on the other side of the hot pressing plate and the other side of the hot pressing template. The outlet hoses and the intake hoses are both communicated with the channels, for conveying gas into the channels to improve the evaporation speed of water vapor.

[0011] In a preferred embodiment, the hot pressing plate is made of a heat-insulating material with a yield strength of 235 - 360 MPa, and the two heating plates are both made of Q345B carbon steel.

[0012] In a preferred embodiment, the inner diameter of each drainage groove is 8 mm, and the inner diameter of each heating hole is 12 mm.

[0013] The technical effects and advantages of the present utility model:

[0014] The present utility model limits the hot pressing template through the limiting block, can realize automatic demolding of the profile on the hot pressing template, thereby improving production efficiency and ensuring production safety. And the hot pressing plate is provided with channels to enable the profile to be evenly heated and discharge water vapor in time, and at the same time, the pressure of the hydraulic cylinder can be adjusted in time according to needs.

[0015] Connect a vacuum circulation pump and a drying tower between two drain holes, and use the vacuum circulation pump to timely extract the humid and hot air in the hot pressing template. After drying the humid and hot air in the drying tower, it is refluxed to the hot pressing template to save energy. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 It is a sectional view of the heating plate of Embodiment 1;

[0018] Figure 3 It is a top view of the heating plate of Embodiment 1;

[0019] Figure 4 It is a partial sectional view of the hot pressing plate of Embodiment 1;

[0020] Figure 5 It is a schematic diagram of the overall structure of Embodiment 2.

[0021] The reference numerals are: 1, hydraulic workbench; 2, hot pressing plate; 3, hot pressing template; 4, limiting plate; 5, heating assembly; 6, drain hole; 7, hole channel; 8, intake hose; 9, outlet hose;

[0022] Upper seat; 102, lower seat; 103, column; 104, hydraulic cylinder;

[0023] 501, heating plate; 502, drain groove; 503, heating hole; 504, heating rod. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0025] Referring to the attached drawings of the specification Figures 1-5 , the present utility model provides a hot pressing mold with automatic demolding, including a hydraulic workbench 1, the hydraulic workbench 1 includes an upper seat 101 and a lower seat 102, the lower seat 102 and the upper seat 101 are fixed by two columns 103, a hydraulic cylinder 104 is fixedly arranged at the bottom end of the upper seat 101, a hot pressing plate 2 is arranged at the bottom end of the hydraulic cylinder 104, and a hot pressing template 3 is arranged below the hot pressing plate 2;

[0026] On both sides of the top end of the lower base 102, limit plates 4 are fixedly arranged, and the two limit plates 4 are respectively arranged between the hot pressing template 3 and the two columns 103 for assisting the hot pressing template 3 in blanking. Heating components 5 are arranged on the bottom of the hot pressing template 3 and the top of the hot pressing plate 2. The two heating components 5 each include a heating plate 501, and the two heating plates 501 are respectively fixed to the top end of the hot pressing plate 2 and the bottom end of the hot pressing template 3;

[0027] Next, drainage grooves 502 are opened on the side where the two heating plates 501 are close to each other, and a plurality of heating holes 503 are opened on the side where the two heating plates 501 are far from each other. A heating rod 504 is fixedly arranged inside each heating hole 503. The heating rod 504 is used to heat the heating plate 501, and the heat is conducted from the heating plate 501 to the hot pressing plate 2 and the hot pressing template 3, so as to facilitate hot pressing of the profile;

[0028] The hot pressing plate 2 is made of a heat-insulating material with a yield strength of 235 - 360 MPa. The two heating plates 501 are both made of Q345B carbon steel to improve the service life of the heating plates 501. The inner diameter of each drainage groove 502 is 8 mm, and the inner diameter of each heating hole 503 is 12 mm;

[0029] Moreover, drainage holes 6 are opened on both sides of the two heating plates 501. The drainage holes 6 are communicated with the drainage grooves 502 for discharging the water vapor on the heating plates 501. A plurality of communicating channels 7 are arranged inside the hot pressing plate 2 and the hot pressing template 3 to make the heat distribution in the hot pressing plate 2 and the hot pressing template 3 uniform, thereby improving the hot pressing effect of the profile;

[0030] Furthermore, detachable intake hoses 8 are fixedly arranged on one side of the hot pressing plate 2 and one side of the hot pressing template 3, and detachable outlet hoses 9 are fixedly arranged on the other side of the hot pressing plate 2 and the other side of the hot pressing template 3. The outlet hoses 9 and the intake hoses 8 are both communicated with the channels 7 for conveying gas into the channels 7 to improve the dissipation speed of the water vapor.

[0031] During use, the hydraulic cylinder 104 is used to drive the hot pressing plate 2 to move downward to cooperate with the hot pressing template 3. At the same time, a plurality of heating rods 504 on the two heating plates 501 are used to heat the hot pressing plate 2 and the hot pressing template 3. Then, the hot pressing plate 2 and the hot pressing template 3 are used to cooperate to hot press the profile. After hot pressing is completed, the hot pressing plate 2 resets and moves upward, driving the hot pressing template 3 and the profile inside the hot pressing template 3 to move upward together. When the hot pressing template 3 moves upward and contacts the limit plate 4, it is blocked by the limit plate 4 from falling. At this time, the hot-pressed profile is still at the bottom of the hot pressing plate 2, realizing the removal of the hot-pressed profile from the hot pressing template 3, thereby realizing automatic demolding, which can improve production efficiency. And by arranging a plurality of channels 7 inside the hot pressing plate 2 and the hot pressing template 3, the profile can be heated evenly and the water vapor can be discharged in time. Embodiment

[0032] Different from the first embodiment, referring to the appended drawings of the specification Figures 1-5 , a vacuum circulation pump is connected to the drain hole 6. The suction port of the vacuum circulation pump is connected to the drain hole 6 on the other side. The outlet of the vacuum circulation pump is connected to the hot pressing template 3 through a drying tower. The vacuum circulation pump is used to timely extract the humid and hot air in the hot pressing template 3, and the humid and hot air is dried by the drying tower and then refluxed to the hot pressing template 3 to save energy.

[0033] Finally: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hot pressing mold with automatic demoulding, characterized in that: The hydraulic workbench (1) comprises an upper seat (101) and a lower seat (102), the lower seat (102) and the upper seat (101) are fixed via two columns (103), a hydraulic cylinder (104) is fixedly provided at the bottom end of the upper seat (101), a hot pressing plate (2) is provided at the bottom end of the hydraulic cylinder (104), and a hot pressing template (3) is provided below the hot pressing plate (2); Limiting plates (4) are fixedly provided on both sides of the top of the lower seat (102), and the two limiting plates (4) are respectively arranged between the hot pressing template (3) and the two columns (103) to assist the hot pressing template (3) in cutting materials; The bottom of the hot pressing template (3) and the top of the hot pressing plate (2) are both provided with heating components (5), and the two heating components (5) each comprise a heating plate (501), and the two heating plates (501) are respectively fixed to the top of the hot pressing plate (2) and the bottom of the hot pressing template (3).

2. The automatic demoulding hot pressing mold according to claim 1, characterized in that: A drainage groove (502) is provided on the side where the two heating plates (501) are close to each other, and a plurality of heating holes (503) are provided on the side where the two heating plates (501) are far away from each other. A heating rod (504) is fixedly provided inside each heating hole (503).

3. The automatic demoulding hot pressing mold according to claim 2, characterized in that: Drain holes (6) are provided on both sides of the two heating plates (501), and the drainage holes (6) are connected to the drainage groove (502).

4. The automatic demoulding hot pressing mold according to claim 1, characterized in that: The hot pressing plate (2) and the hot pressing mold plate (3) are both provided with a plurality of interconnected channels (7) therein.

5. The automatic demoulding hot pressing mold according to claim 4, characterized in that: A detachable air inlet hose (8) is fixedly provided on one side of the hot pressing plate (2) and one side of the hot pressing mold plate (3), and a detachable air outlet hose (9) is fixedly provided on the other side of the hot pressing plate (2) and the other side of the hot pressing mold plate (3), and the air outlet hose (9) and the air inlet hose (8) are both connected to the hole (7).

6. The automatic demoulding hot pressing mold according to claim 1, characterized in that: The hot pressing plate (2) is made of a heat-insulating material with a yield strength of 235-360 MPa, and the two heating plates (501) are both made of Q345B carbon steel.

7. The automatic demoulding hot pressing mold according to claim 2, characterized in that: The inner diameter of each drainage groove (502) is 8 mm, and the inner diameter of each heating hole (503) is 12 mm.

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