A continuous conveyor belt device suitable for use in a microwave preheating section

Abstract

The utility model discloses a continuous conveying belt device suitable for microwave preheating section, including the conveying belt device of setting on the bottom surface through the support leg and the microwave generating device of covering in this conveying belt device top, the microwave generating device is used for sending microwave to conveying belt device, its characterized in that: the conveying belt device includes setting the edge frame of the support leg top and the intermediate frame of fixed connection two opposite the edge frame, the hollow conveying belt is circularly connected between two opposite edge frames and rotates, and the conveying belt is used for placing and transporting the shaving board, and the airflow adjusting assembly and airflow generating assembly are sequentially arranged from top to bottom between two opposite edge frames, and the airflow generating assembly is used for generating the gas flow from top to bottom, the utility model can produce the even airflow from top to bottom, effectively remove the moisture and heat on the shaving board surface of conveying belt, prevent partial overheating or moisture accumulation to improve the preheating uniformity.

Description

Technical Field

[0001] This utility model relates to the technical field of microwave preheating equipment for sheet metal, specifically a continuous conveyor belt device suitable for microwave preheating sections. Background Technology

[0002] In the particleboard production process, the subsequent steps after producing particleboard are: particle drying → adhesive application → laying and shaping → microwave preheating → pre-pressing → hot pressing → cooling → edge trimming. Therefore, the microwave preheating stage is a crucial pretreatment step. Microwave heating effectively increases the internal temperature of the particleboard, promoting the curing of the adhesive. However, during microwave heating, the particleboard surface is prone to uneven quality due to localized overheating or moisture accumulation, even leading to deformation or cracking. Traditional conveyor belt devices only have simple conveying functions and cannot effectively solve the problem of moisture and heat accumulation during microwave preheating. Furthermore, existing technologies lack precise control over airflow distribution, resulting in poor dehumidification and heat dissipation, affecting the uniformity of particleboard preheating and subsequent production efficiency.

[0003] Therefore, there is an urgent need to provide a continuous conveyor belt device that can combine microwave preheating and airflow control to solve the aforementioned shortcomings. Utility Model Content

[0004] The purpose of this invention is to provide a continuous conveyor belt device suitable for microwave preheating sections, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A continuous conveyor belt device suitable for microwave preheating section includes a conveyor belt device mounted on a bottom surface via support legs and a microwave generator device covering the conveyor belt device. The microwave generator device is used to send microwaves to the conveyor belt device. The conveyor belt device includes side frames mounted on top of the support legs and an intermediate frame fixedly connecting two opposing side frames. A perforated conveyor belt is rotatably connected between the two opposing side frames. The conveyor belt is used to place and transport particleboard. An airflow regulating component and an airflow generating component are sequentially arranged from top to bottom between the two opposing side frames. The airflow generating component is used to generate a downward airflow to dehumidify and deheat the particleboard on the conveyor belt, preventing the particleboard surface from becoming too wet or too hot.

[0007] Preferably, the airflow generating assembly includes a mounting plate having a plurality of mounting holes and a fan mounted in the mounting holes, the mounting plate being fixedly disposed between the two opposing side frames.

[0008] Preferably, the airflow regulating component includes two layers of grids spaced apart by a certain gap, disposed between the two opposing side frames. Each layer of grids includes multiple grid strips evenly distributed at the same horizontal level. A corresponding shielding strip is slidably disposed between each pair of grid strips in the two layers. One end of the grid strip in the lower layer forms an elongated hole. The shielding strip is fixedly formed into a sliding rod passing through the elongated hole. The other end of all the sliding rods is uniformly and fixedly connected to a drive rod. The drive rod is drivenly connected to a motor assembly.

[0009] Preferably, the motor assembly includes a motor fixedly mounted on the inner wall of the side frame, the motor spindle being fixedly connected to a first gear, and the drive rod being threadedly connected to a second gear, which is rotatably connected to a gear seat fixed to the inner wall of the side frame; the first gear and the second gear are meshed and driven together.

[0010] Preferably, both the grid strips and the shielding strips are made of metal.

[0011] Preferably, the bottom surface of the mounting plate forms a symmetrical guide plate, and the lower part of the symmetrical guide plate forms an air outlet. The guide plate gathers the gas and discharges it uniformly from the air outlet.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, through the coordinated design of the mounting plate and the fan, can generate a uniform airflow from top to bottom, effectively removing moisture and heat from the surface of the particleboard on the perforated conveyor belt, preventing localized overheating or moisture accumulation, thereby improving preheating uniformity. Furthermore, the guide plate design can converge the airflow and discharge it uniformly from the outlet, enhancing the airflow force. The outlet blows air onto the conveyor belt below, washing away dust and improving cleanliness.

[0014] 2. This utility model employs a double-layer grid structure with sliding baffles. The baffles are precisely adjusted via a motor drive, allowing for precise control of the airflow by varying the amount of air that is covered between the grid bars. Furthermore, both the grid bars and the baffles are made of metal, which is not only heat-resistant but also reflects microwaves. The reflected microwaves provide secondary preheating to the particleboard on the conveyor belt, increasing preheating efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a front half-sectional view of the present invention;

[0017] Figure 3 for Figure 2 A magnified view of part A in the image;

[0018] Figure 4 This is a three-dimensional structural diagram of the transmission connection of the motor assembly of this utility model;

[0019] Figure 5 for Figure 4 A magnified view of part B in the image.

[0020] In the diagram: 1-support leg; 2-microwave generator; 21-microwave enclosure; 22-connecting frame; 23-microwave generator; 3-side frame; 4-intermediate frame; 5-conveyor belt; 51-pulley; 52-drive shaft; 53-gearbox; 54-circulating drive motor; 6-mounting plate; 7-fan; 8-grid strip; 9-shielding strip; 10-elongated hole; 11-slide bar; 12-drive rod; 13-motor; 14-first gear; 15-second gear; 16-gear seat; 17-guide plate; 18-air outlet. Detailed Implementation

[0021] 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.

[0022] like Figures 1 to 3 As shown, this utility model is a continuous conveyor belt device suitable for microwave preheating section, used to preheat particleboard. It is necessary to uniformly heat the entire particleboard blank so that it can be pre-pressed and hot-pressed in the subsequent process. The effect of preheating directly affects the effect of pre-pressing and hot-pressing.

[0023] Specifically, such as Figures 1 to 5 As shown, the continuous conveyor belt device includes a conveyor belt device fixed to the ground by support legs 1, and a microwave generator 2 covering the conveyor belt device, such as... Figure 2 As shown, the microwave generating device 2 in this embodiment includes a microwave enclosure 21 covering the conveyor belt device and a microwave generator 23 fixedly connected to the top wall of the microwave enclosure 21 via a connecting frame 22. The microwave generator 23 is a commercially available microwave generator, and a specific model is selected as needed. The microwave generator 23 sends microwaves downward and toward the conveyor belt device, while the microwave enclosure 21 is made of metal material to prevent microwaves from leaking to the outside and affecting the staff.

[0024] Specifically, the conveyor belt device consists of two opposing side frames 3 and a middle frame 4 fixedly connected to the side frames 3. The side frames 3 and the middle frame 4 together support the perforated conveyor belt 5 for cyclically transporting particleboard. Preferably, and more preferably, as... Figure 1 and Figure 2 As shown, the conveyor belt 5 is connected to the pulley 51. A drive shaft 52 is fixedly and coaxially arranged in the middle of the pulley 51. The outer end of the drive shaft 52 is connected to the circulating drive motor 54 through the gearbox 53. Starting the circulating drive motor 54 to rotate will realize the cyclic rotation of the conveyor belt 5. The hollow design of the conveyor belt 5 (the hollow structure is not shown in the figure, but the conveyor belts 5 used in this utility model are all hollow structures, that is, they have air permeability) facilitates the passage of airflow and further improves the dehumidification effect.

[0025] Further optimized, an airflow regulating component and an airflow generating component are sequentially arranged from top to bottom in the cavity formed between the two side frames 3. The airflow generating component includes a mounting plate 6 and a fan 7. The mounting plate 6 has several mounting through holes, and the fan 7 is fixed in these through holes. Specifically, the bottom surface of the mounting plate 6 has symmetrical guide plates 17, with an air outlet 18 formed at the lower part of the guide plates 17. This outlet can gather and evenly discharge the airflow generated by the fan, rinsing the conveyor belt 5 located below.

[0026] More specifically, the airflow regulating component is located above the airflow generating component and includes two layers of spaced-apart grilles, each layer consisting of multiple horizontally evenly distributed grid strips 8. Further, a blocking strip 9 is slidably disposed between the two layers of grid strips 8. One end of the lower grid strip 8 has an elongated hole 10, and the blocking strip 9 is fixedly connected to a drive rod 12 via a sliding rod 11 passing through the elongated hole 10. The drive rod 12 is driven by a motor assembly to achieve synchronous sliding of the blocking strip 9. Specifically, as... Figure 3 and Figure 4 As shown, the motor assembly includes a motor 13 fixed to the inner wall of the side frame 3. The main shaft of the motor 13 is fixedly connected to the first gear 14, and the drive rod 12 is threadedly connected to the second gear 15 (that is, the second gear 15 has a threaded through hole in the middle, and the drive rod 12 has a thread on its surface. The two are connected by threaded transmission through the thread and the threaded through hole). The second gear 15 meshes with the first gear 14, thereby converting the rotational motion of the motor into the linear motion of the drive rod, so as to realize the adjustment of the shielding strip 9.

[0027] Preferably, both the grid strips 8 and the shielding strips 9 are made of metal, which can withstand high-temperature environments and reflect microwaves, thus avoiding interference with the microwave preheating process. In practical applications, by adjusting the position of the shielding strips 9, the airflow through the grid can be controlled, thereby adapting to the preheating requirements of particleboard with different humidity and temperature, resulting in a more uniform preheating effect.

[0028] In practice, the particleboard is manually placed onto the conveyor belt 5 and transported to the microwave generator 2 (i.e., inside the microwave chamber 21) for preheating. Simultaneously, the fan 7 is activated, generating a downward airflow. This airflow within the microwave chamber 21 is converged by the guide plate 17 and then evenly blown from the outlet 18 onto the lower conveyor belt 5 to remove dust. Meanwhile, the surface of the particleboard carried by the upper conveyor belt 5 is cooled and heated by the downward airflow. Due to the heating principle of microwaves, surfaces and areas with high humidity heat up faster. Therefore, the airflow removes surface humidity and heat, resulting in even and uniform heating. Furthermore, by adjusting the position of the baffle strip 9 via the motor 13, the airflow can be dynamically adjusted to ensure more suitable and effective dehumidification and heat dissipation for particleboard with varying humidity levels.

[0029] This invention effectively solves the problem of moisture and heat accumulation during the microwave preheating process of particleboard by using the synergistic effect of the airflow generating component and the airflow regulating component, thereby improving preheating uniformity and production efficiency.

[0030] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A continuous conveyor belt device suitable for a microwave preheating section, comprising a conveyor belt device mounted on a bottom surface via supports (1) and a microwave generator (2) covering the conveyor belt device, the microwave generator (2) being used to send microwaves to the conveyor belt device; characterized in that: The conveyor belt device includes a side frame (3) set on the top of the support (1) and an intermediate frame (4) fixedly connected to two opposing side frames (3). A perforated conveyor belt (5) is circulated between the two opposing side frames (3). The conveyor belt (5) is used to place and transport particleboard. An airflow regulating component and an airflow generating component are arranged sequentially from top to bottom between the two opposing side frames (3). The airflow generating component is used to generate a downward airflow to dehumidify and deheat the particleboard on the conveyor belt (5) and prevent the particleboard surface from being too wet or too hot.

2. The continuous conveyor belt device according to claim 1, characterized in that: The airflow generating assembly includes a mounting plate (6) with a plurality of mounting holes and a fan (7) installed in the mounting holes. The mounting plate (6) is fixedly disposed between the two opposing side frames (3).

3. The continuous conveyor belt device according to claim 2, characterized in that: The airflow regulating component includes two layers of grids spaced apart by a certain gap, which are arranged between the two opposing side frames (3). Each layer of grid includes multiple grid strips (8) evenly distributed at the same level. A corresponding shielding strip (9) is slidably arranged between each pair of grid strips (8) of the two layers. One end of the grid strip (8) of the lower layer forms an elongated hole (10). The shielding strip (9) is fixedly formed into a sliding rod (11) passing through the elongated hole (10). The other end of all the sliding rods (11) is uniformly fixedly connected to a drive rod (12). The drive rod (12) is driven to a motor assembly.

4. The continuous conveyor belt device according to claim 3, characterized in that: The motor assembly includes a motor (13) fixedly mounted on the inner wall of the side frame (3). The main shaft of the motor (13) is fixedly connected to a first gear (14). The drive rod (12) is threadedly connected to a second gear (15). The second gear (15) is rotatably connected to a gear seat (16) fixed to the inner wall of the side frame (3). The first gear (14) and the second gear (15) are meshed and connected.

5. The continuous conveyor belt device according to claim 3, characterized in that: Both the grid strip (8) and the shielding strip (9) are made of metal.

6. The continuous conveyor belt device according to claim 2, characterized in that: The bottom surface of the mounting plate (6) forms a left-right symmetrical guide plate (17), and the lower part of the left-right symmetrical guide plate (17) forms an air outlet (18). The guide plate (17) gathers the gas and discharges it uniformly from the air outlet (18).

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