Resin hot pressing device

Abstract

The utility model discloses a resin hot pressing device which comprises a supporting table, a fixing frame is fixed to the top of the supporting table, a mounting frame capable of moving up and down is arranged below the fixing frame, and a hydraulic cylinder for driving the mounting frame up and down is fixed to the top of the fixing frame. When the hot pressing plate is downwards supported by the connecting spring, the adjusting piece blocks the through hole, the top space of the partition plate is closed, then the mounting plate is driven by the hydraulic cylinder to move downwards, and after the bottom of the hot pressing plate makes contact with a material, the hot pressing plate extrudes the connecting spring to retract into the mounting frame; at the moment, the hot pressing plate drives the adjusting piece to penetrate through the through hole, the upper space and the lower space of the partition plate are communicated through the through hole, heated hot air diffuses to the position below the partition plate through the through hole, it is guaranteed that the hot pressing plate is heated evenly through the characteristic of high gas fluidity, and the problem that the resin material is heated unevenly due to uneven heating of the hot pressing plate is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot pressing, in particular to a resin hot pressing device. Background Technique

[0002] Hot pressing is a process of heating and pressing the formed board blank at the same time to make fiber boards with certain mechanical strength and water resistance. Whether it is the wet production of hard boards or semi-hard boards, or the dry production of hard boards or medium density boards, they all need to go through hot pressing to become boards.

[0003] In the prior art, the content of a Chinese utility model with the publication number of CN214522578U discloses a hot pressing device for the production of epoxy resin boards, which relates to the technical field of epoxy resin board production tools; support feet are installed at the bottom of the workbench, a lower heat equalizing plate is installed at the upper inner end of the workbench, a lower heating mechanism is installed at the bottom of the lower heat equalizing plate, both sides of the workbench are connected to both ends of the mounting frame body, a press is installed at the upper middle end of the mounting frame body, the lower end of the rod body of the press is connected to a pressing plate, guide rods are installed at both upper ends of the pressing plate, the two guide rods are movably connected to the guide holes on the mounting frame body, an upper heat equalizing plate is installed at the lower inner end of the pressing plate, and an upper heating mechanism is installed on the inner side wall of the upper heat equalizing plate. Through holes are opened on both lower sides of the mounting frame body, and a hot air mechanism is installed in the through holes; this utility model can realize rapid placement and pressing, and is convenient for rapid heating, with high stability and easy use; it can save time, and has high efficiency during pressing, and is convenient for auxiliary heating on both sides, and has a simple structure.

[0004] In the above technical solution, a lower heating mechanism and an upper heating mechanism are respectively arranged on the outer sides of the upper heat equalizing plate and the lower heat equalizing plate, and heating sheets and temperature sensors are integrated inside for controlling the temperature. However, the heating sheets are laid flat inside, and heat conduction in the solid is likely to cause the problem of uneven heat conduction, resulting in the need for a long time for the heat equalizing plate to evenly distribute the heat, leading to low efficiency of hot pressing processing. Content of the Utility Model

[0005] The purpose of the present utility model is to provide a resin hot pressing device, which heats the air above the partition inside the installation frame by using electric heating rods, and then drives the installation frame to move downward through a hydraulic cylinder. When the hot pressing plate contacts the resin material, the hot pressing plate contracts into the installation frame. At this time, the adjusting part penetrates through the through hole to connect the upper and lower space through holes of the partition, so that the hot air is evenly dispersed to the lower space of the partition to uniformly heat the hot pressing plate. At the same time, the hot air is driven by the stirring blades to improve fluidity and accelerate the heating speed of the hot pressing plate, so as to solve the problems raised in the above background technique.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a resin hot pressing device comprises a support table, a fixing frame is fixed on the top of the support table, a mounting frame which can be moved up and down is arranged under the fixing frame, a hydraulic cylinder is fixed on the top of the fixing frame to drive the mounting frame up and down, a hot pressing plate is movably arranged on the bottom of the mounting frame, a support seat is fixed at the center of the inner cavity of the mounting frame, an electric heating rod is installed around the support seat, the end of the electric heating rod away from the support seat is installed on the inner wall of the mounting frame, a partition is fixed laterally to the inner cavity of the mounting frame, through holes are arranged in an array on the partition, an adjusting piece is fixed on the top of the hot pressing plate, the top of the adjusting piece passes through the inner cavity of the through hole, a rotating shaft is rotatably connected to the four sides of the top of the inner cavity of the mounting frame through bearings, a stirring blade is fixed on the outer side of the rotating shaft, and a driving component for driving the rotating shaft is arranged on the top of the mounting frame.

[0007] Preferably, a mounting plate is installed on the piston rod of the hydraulic cylinder, four groups of limiting bolt columns are fixed around the top of the mounting frame, and the tops of the limiting bolt columns penetrate the mounting plate and are threadedly connected with limiting nuts.

[0008] Preferably, the driving assembly includes a fixed box fixed on the top of the mounting frame, the top of the rotating shaft passes through the outside of the fixed box and is fixed with a pulley, the outer side of the pulley is connected to the transmission with a synchronous belt, and a micro motor is fixed on the top of the fixed box, and the output shaft of the micro motor is fixedly connected to a group of rotating shafts.

[0009] Preferably, a limiting rod is fixed on the top of the mounting plate, a limiting hole aligned with the limiting rod is opened on the fixing frame, and the limiting rod passes through the inner cavity of the limiting hole.

[0010] Preferably, a limiting frame is fixed on the top of the hot pressing plate, and the limiting frame is attached to the inner wall of the installation frame.

[0011] Preferably, connecting springs are fixed around the top of the limiting frame, and the top of the connecting spring is fixed to the top of the inner cavity of the installation frame.

[0012] Preferably, the inner cavity of the installation frame is provided with limiting grooves around, the limiting frame is provided with protrusions around and extend to the inner cavity of the limiting grooves, the installation frame and the limiting frame are provided with connected air holes, and the air holes are respectively located on the limiting grooves and the protrusions.

[0013] Preferably, the adjusting member comprises a top cover portion located inside the through hole, and support columns are integrally formed at the bottom of the top cover portion, and channels are formed between the support columns.

[0014] Preferably, a support spring is provided on the outer side of the limiting bolt column, and the support spring is located between the mounting frame and the mounting plate.

[0015] Preferably, the stirring blades are symmetrically distributed outside the rotating shaft, and a plurality of groups of circular holes are formed in the stirring blades.

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

[0017] 1. By installing an electric heating rod in the installation frame, the present utility model can heat the air in the installation frame. When the hot pressing plate is supported downward by the connecting spring, the adjusting member blocks the through hole, making the top space of the partition closed. Subsequently, the mounting plate moves downward driven by the hydraulic cylinder. When the bottom of the hot pressing plate contacts the material, the hot pressing plate squeezes the connecting spring and retracts into the installation frame. At this time, the hot pressing plate drives the adjusting member to penetrate the through hole, connecting the upper and lower spaces of the partition through the through hole. The heated hot air diffuses downward through the through hole. By the characteristic of strong gas fluidity, the hot pressing plate is ensured to be uniformly heated, avoiding the problem of uneven heating of the resin material due to uneven heating of the hot pressing plate.

[0018] 2. Through the arrangement of the air holes, the present utility model facilitates the adjustment of the air pressure inside the installation frame. When the electric heating rod heats the air inside the installation frame and causes it to expand, if the air pressure inside the installation frame is not adjusted after the through hole is opened, it is easy to cause the slow diffusion speed of the hot air. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural diagram of the present utility model;

[0020] Figure 2 is a partial three-dimensional structural diagram of the present utility model;

[0021] Figure 3 is a partial three-dimensional structural diagram of the driving assembly of the present utility model;

[0022] Figure 4 is a disassembled three-dimensional structural diagram of the installation frame and the hot pressing plate of the present utility model;

[0023] Figure 5 is a bottom three-dimensional structural diagram of the installation frame of the present utility model;

[0024] Figure 6 is a three-dimensional structural diagram of the adjusting member of the present utility model.

[0025] Reference numerals in the figure: 1, support platform; 2, fixing frame; 3, mounting frame; 4, hydraulic cylinder; 5, hot pressing plate; 6, electric heating rod; 7, partition; 8, through hole; 9, adjusting member; 91, top cover part; 92, support column; 93, channel; 10, rotating shaft; 11, stirring blade; 12, driving assembly; 121, fixing box; 122, pulley; 123, synchronous belt; 124, micro motor; 13, mounting plate; 14, limit bolt column; 15, limiting rod; 16, limiting frame; 17, connecting spring; 18, limiting groove; 19, air vent; 20, support spring. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] The present invention provides a resin hot pressing device as shown in Figures 1-6 Figure 10, which includes a support platform 1. A fixing frame 2 is fixed on the top of the support platform 1. A vertically movable mounting frame 3 is arranged below the fixing frame 2. A hydraulic cylinder 4 for driving the mounting frame 3 up and down is fixed on the top of the fixing frame 2. A hot pressing plate 5 is movably arranged at the bottom of the mounting frame 3. A support seat is fixed at the center of the inner cavity of the mounting frame 3. Electric heating rods 6 are installed around the support seat. One end of the electric heating rod 6 away from the support seat is installed on the inner wall of the mounting frame 3. A partition 7 is horizontally fixed in the inner cavity of the mounting frame 3. Through holes 8 are arrayed on the partition 7. A regulating member 9 is fixed on the top of the hot pressing plate 5. The top of the regulating member 9 penetrates into the inner cavity of the through hole 8. Rotating shafts 10 are rotatably connected to the four sides of the top of the inner cavity of the mounting frame 3 through bearings. Stirring blades 11 are fixed on the outer sides of the rotating shafts 10. A driving assembly 12 for driving the rotating shafts 10 is arranged on the top of the mounting frame 3;

[0028] By installing the electric heating rods 6 in the mounting frame 3, the air in the mounting frame 3 can be heated. When the hot pressing plate 5 is supported downward by the connecting spring 17, the regulating member 9 blocks the through hole 8, making the top space of the partition 7 airtight. Subsequently, the mounting plate 13 moves downward under the drive of the hydraulic cylinder 4. When the bottom of the hot pressing plate 5 contacts the material, the hot pressing plate 5 squeezes the connecting spring 17 to retract into the mounting frame 3. At this time, the hot pressing plate 5 drives the regulating member 9 to penetrate through the through hole 8, so that the through hole 8 connects the upper and lower spaces of the partition 7. The heated hot air diffuses downward through the through hole 8. By the characteristic of strong gas fluidity, it is ensured that the hot pressing plate 5 is evenly heated, avoiding the problem of uneven heating of the resin material due to uneven heating of the hot pressing plate 5.

[0029] Further, such as Figure 2 As shown, a mounting plate 13 is installed on the piston rod of the hydraulic cylinder 4, and four groups of limiting bolt columns 14 are fixed around the top of the mounting frame 3. The tops of the limiting bolt columns 14 pass through the mounting plate 13 and are threadedly connected with limiting nuts. The mounting plate 13 is connected to the mounting frame 3 through the limiting bolt columns 14 and the limiting nuts, and then connected to the hydraulic cylinder 4 through the mounting plate 13, and the hydraulic cylinder 4 is used to drive the mounting frame 3 to move up and down.

[0030] In a further preferred embodiment, Figure 3 As shown, the driving assembly 12 includes a fixed box 121 fixed on the top of the mounting frame 3, the top of the rotating shaft 10 passes through the outside of the fixed box 121 and is fixed with a pulley 122, the outer side of the pulley 122 is connected to the transmission with a synchronous belt 123, and the top of the fixed box 121 is fixed with a micro motor 124, the output shaft of the micro motor 124 is fixedly connected to a group of rotating shafts 10, and a group of rotating shafts 10 are driven to rotate by the micro motor 124, and then the four groups of pulleys 122 are driven synchronously by the synchronous belt 123 to drive the four groups of rotating shafts 10 synchronously, and the stirring blade 11 is used to drive the hot air in the space above the partition 7 to diffuse rapidly.

[0031] Further, such as Figure 2 As shown, a limiting rod 15 is fixed on the top of the mounting plate 13, and a limiting hole aligned with the limiting rod 15 is opened on the fixing frame 2. The limiting rod 15 passes through the inner cavity of the limiting hole. Through the setting of the limiting rod 15, it is convenient to limit the mounting plate 13, ensuring the stability of the mounting plate 13 and the mounting frame 3 when moving up and down.

[0032] Preferably, Figure 4 As shown, a limit frame 16 is fixed on the top of the hot pressing plate 5, and the limit frame 16 is attached to the inner wall of the installation frame 3. Through the setting of the limit frame 16, it is ensured that the hot pressing plate 5 always remains parallel to the installation frame 3 during the up and down movement, avoiding the hot pressing plate 5 from tilting.

[0033] It is worth noting that if Figure 4 and Figure 5 As shown, connecting springs 17 are fixed around the top of the limit frame 16, and the top of the connecting spring 17 is fixed to the top of the inner cavity of the installation frame 3. Through the setting of the connecting spring 17, it is convenient to connect the hot pressing plate 5, and the installation frame 3 is connected to the hot pressing plate 5 to prevent the hot pressing plate 5 from being separated from the installation frame 3 due to gravity.

[0034] Further, such as Figure 4As shown in the figure, limiting grooves 18 are provided around the inner cavity of the mounting frame 3. Protrusions are integrally formed around the limiting frame 16 and extend into the inner cavity of the limiting grooves 18. Vent holes 19 are provided on the mounting frame 3 and the limiting frame 16 in a communicating manner. The vent holes 19 are respectively located on the limiting grooves 18 and the protrusions. When the protrusions pass through the limiting grooves 18, it is convenient to limit the limiting frame 16. At the same time, vent holes 19 are provided on the mounting frame 3 and the limiting frame 16 to facilitate the adjustment of the air pressure inside the mounting frame 3. When the electric heating rod 6 heats the air inside the mounting frame 3 and causes it to expand, when the through hole 8 is opened, if the air pressure inside the mounting frame 3 is not adjusted, it is easy to cause the hot air to diffuse slowly.

[0035] Preferably, as Figure 6 shown, the adjusting member 9 includes a top cover portion 91 located inside the through hole 8. A support column 92 is integrally formed at the bottom of the top cover portion 91. A channel 93 is formed between the support columns 92. By defining the structure of the adjusting member 9, the through hole 8 is blocked by the top cover portion 91, and then the channel 93 formed between the support columns 92 is used to penetrate the upper and lower spaces of the partition plate 7, and at the same time, the top cover portion 91 is supported.

[0036] In addition, as Figure 2 shown, a support spring 20 is provided on the outer side of the limit bolt column 14. The support spring 20 is located between the mounting frame 3 and the mounting plate 13. Through the cooperation of the support spring 20, it is used to support the mounting plate 13 and the mounting frame 3, playing a role of buffering and shock absorption.

[0037] Preferably, as Figure 5 shown, the stirring blades 11 are symmetrically distributed on the outer side of the rotating shaft 10. Multiple groups of round holes are provided on the stirring blades 11. Through the setting of the round holes on the stirring blades 11, it is convenient to improve the fluidity of the air and make the hot air evenly distributed inside the mounting frame 3.

[0038] During specific use, the electric heating rod 6 is powered on. Then, the electric heating rod 6 heats the air above the partition plate 7 inside the mounting frame 3. At the same time, the micro motor 124 drives a set of rotating shafts 10 to rotate. Subsequently, the other rotating shafts 10 rotate synchronously under the drive of the belt pulleys 122 and the synchronous belt 123. The stirring blades 11 are used to drive the hot air above the partition plate 7 to flow. When the hydraulic cylinder 4 drives the mounting frame 3 to move downward through the mounting plate 13, the hot pressing plate 5 contacts the resin material. Then, the hot pressing plate 5 is pushed upward and retracts into the mounting frame 3 under extrusion. At this time, the hot pressing plate 5 drives the adjusting member 9 to penetrate the through hole 8, so that the through hole 8 connects the upper and lower spaces of the partition plate 7. Subsequently, the air pressure above the partition plate 7 increases due to heating and is relieved through the through hole 8, so that the hot air flows downward and contacts the hot pressing plate 5, evenly heating the hot pressing plate 5 to ensure that the hot pressing plate 5 evenly heats the resin material.

[0039] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A resin hot pressing device, comprising a support table (1), characterized in that: A fixing frame (2) is fixed on the top of the support platform (1), a mounting frame (3) which can be moved up and down is arranged below the fixing frame (2), a hydraulic cylinder (4) for driving the mounting frame (3) up and down is fixed on the top of the fixing frame (2), a hot pressing plate (5) is movably arranged at the bottom of the mounting frame (3), a supporting seat is fixed at the center of the inner cavity of the mounting frame (3), electric heating rods (6) are installed around the supporting seat, and the end of the electric heating rod (6) away from the supporting seat is installed on the inner wall of the mounting frame (3), A partition (7) is transversely fixed to the inner cavity of the installation frame (3), and a through hole (8) is arranged in an array on the partition (7). An adjusting member (9) is fixed to the top of the hot pressing plate (5), and the top of the adjusting member (9) passes through the inner cavity of the through hole (8). A rotating shaft (10) is rotatably connected to the top of the inner cavity of the installation frame (3) via bearings. A stirring blade (11) is fixed to the outer side of the rotating shaft (10). A driving component (12) for driving the rotating shaft (10) is arranged on the top of the installation frame (3).

2. The resin hot pressing device according to claim 1, wherein: A mounting plate (13) is mounted on the piston rod of the hydraulic cylinder (4), and four groups of limiting bolt columns (14) are fixed around the top of the mounting frame (3). The tops of the limiting bolt columns (14) penetrate the mounting plate (13) and are threadedly connected to limiting nuts.

3. A resin hot pressing device according to claim 1, characterized in that: The driving assembly (12) comprises a fixed box (121) fixed on the top of the mounting frame (3); the top of the rotating shaft (10) passes through the outside of the fixed box (121) and is fixed with a pulley (122); the outside of the pulley (122) is connected to a synchronous belt (123) for transmission; a micro motor (124) is fixed on the top of the fixed box (121); and the output shaft of the micro motor (124) is fixedly connected to a set of rotating shafts (10).

4. A resin hot pressing device according to claim 2, characterized in that: A limiting rod (15) is fixed on the top of the mounting plate (13), a limiting hole aligned with the limiting rod (15) is opened on the fixing frame (2), and the limiting rod (15) passes through the inner cavity of the limiting hole.

5. A resin hot pressing device according to claim 1, characterized in that: A limiting frame (16) is fixed on the top of the hot pressing plate (5), and the limiting frame (16) is attached to the inner wall of the installation frame (3).

6. The resin hot pressing device according to claim 5, wherein: A connecting spring (17) is fixed around the top of the limiting frame (16), and the top of the connecting spring (17) is fixed to the top of the inner cavity of the installation frame (3).

7. A resin hot pressing device according to claim 5, characterized in that: The inner cavity of the installation frame (3) is provided with a limiting groove (18) around it, and the limiting frame (16) is provided with a protrusion around it and extends to the inner cavity of the limiting groove (18). The installation frame (3) and the limiting frame (16) are provided with a communicating air vent (19), and the air vent (19) is respectively located on the limiting groove (18) and the protrusion.

8. A resin hot pressing device according to claim 1, characterized in that: The adjusting member (9) comprises a top cover portion (91) located inside the through hole (8), a support column (92) is integrally formed at the bottom of the top cover portion (91), and a channel (93) is formed between the support columns (92).

9. The resin hot pressing device according to claim 2, characterized in that: A support spring (20) is arranged outside the limit bolt column (14), and the support spring (20) is located between the mounting frame (3) and the mounting plate (13).

10. A resin hot pressing device according to claim 1, characterized in that: The stirring blades (11) are symmetrically distributed outside the rotating shaft (10), and a plurality of groups of round holes are formed in the stirring blades (11).

Images