Uniformly dryable hot-air oven

Abstract

The utility model relates to hot -blast oven field especially relates to a kind of hot -blast oven of even drying, hot -blast oven machine body is internally installed with multiple drying plate of being equipped with rotating platform by convex rail, rotating platform is driven to rotate by bevel gear drive group, and the input end of bevel gear drive group is driven link with motor drive connection configured in the inside of hot -blast oven machine body by driving rod cooperation connector.This utility model, the rotating platform of drying plate middle part can be docked with motor and realize rotation, to drive workpiece to produce uniform rotation when drying, so that workpiece surface each orientation is evenly heated, effectively solve the problem of uneven drying compared with traditional fixed drying rack, significantly improve drying uniformity.

Description

Technical Field

[0001] This utility model relates to the field of hot air drying oven technology, and in particular to a hot air drying oven that can dry evenly. Background Technology

[0002] A hot air drying oven uses heating elements to generate heat energy, and then a fan forces hot air into the oven to form a hot air circulation channel, thereby heating and drying the materials.

[0003] Currently, the drying racks of traditional hot air ovens are mostly fixed, resulting in uneven heating of the drying components and uneven drying. Therefore, this problem urgently needs to be solved. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a hot air drying oven that can uniformly dry products.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A hot air drying oven capable of uniform drying includes a hot air drying oven body. Inside the hot air drying oven body, multiple drying trays equipped with rotating tables are installed via convex rails. The rotating tables are driven to rotate by a bevel gear drive group. The input end of the bevel gear drive group is connected to a motor drive group configured inside the hot air drying oven body via a drive rod and a connector. The drive rod is used to transmit torque, and one end of the drive rod is provided with multiple buffer grooves. A connector is movably sleeved in the buffer groove by a limiting block. There is a movable gap between the limiting block and the buffer groove to meet the axial floating allowance of the connector. The outer wall of the connector is provided with multiple docking blocks to dock with the motor output end.

[0006] In addition, a preferred structure is that the two side walls of the drying tray are provided with grooves to mate with the convex rails provided on both sides of the inner wall of the hot air drying oven.

[0007] Furthermore, in a preferred configuration, the bevel gear drive assembly includes a pair of vertically meshing bevel gears. The output end of the bevel gear drive assembly is driven to the center of the bottom of the rotary table via a shaft, and the input end of the bevel gear drive assembly is driven to the drive rod. The drive rod and the bevel gear drive assembly are jointly assembled in the drive block at the bottom of the baking tray.

[0008] In addition, a preferred structure is that a fastening screw is rotatably mounted on the bottom end of the drive block, and one end of the fastening screw extends out of the drive block and is screwed to the inner wall of the hot air oven.

[0009] Furthermore, in a preferred configuration, the motor output end is driven by a drive head, which is rotatably mounted on the inner wall of the hot air oven by a bearing component, and the inner wall of the drive head is provided with multiple slots to match the mating block.

[0010] Furthermore, a preferred configuration is that one side of the connector is provided with a tapered guide head.

[0011] The beneficial effects of this utility model are as follows: In this invention, the rotating table in the middle of the drying tray can be connected to the motor and rotate to drive the workpiece to rotate at a uniform speed during drying, so that the surface of the workpiece is heated evenly in all directions. Compared with the traditional fixed drying rack, it effectively solves the problem of uneven drying and significantly improves the uniformity of drying. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a hot air drying oven that can uniformly dry according to the present invention; Figure 2 This is a schematic diagram of the structure at point A proposed in this utility model; Figure 3 This is a schematic diagram of the external structure of the baking tray proposed in this utility model; Figure 4 This is an exploded view of the rotating table and baking tray connection structure proposed in this utility model; Figure 5 This is a schematic diagram of the internal structure of the drive block proposed in this utility model; Figure 6 This is a schematic diagram of the motor and baking tray docking structure proposed in this utility model. Figure 1 ; Figure 7 This is a schematic diagram of the motor and baking tray docking structure proposed in this utility model. Figure 2 ; Figure 8 This is a schematic diagram of the drive head structure proposed in this utility model; Figure 9 This is a cross-sectional view of the connector mounting structure proposed in this utility model.

[0013] In the diagram: 1. Hot air oven body; 2. Drying tray; 3. Drive block; 4. Convex rail; 5. Fastening screw; 6. Rotary table; 7. Bevel gear transmission group; 8. Drive rod; 81. Buffer groove; 9. Connector; 91. Connecting block; 10. Motor; 11. Drive head; 12. Slot; 13. Conical guide head; 14. Limit block. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Reference Figure 1-9 A hot air drying oven capable of uniform drying includes a hot air drying oven body 1, and multiple drying trays 2 are arranged inside the hot air drying oven body 1 for placing materials. A rotating table 6 is mounted in the middle of the drying tray 2. The rotating table 6 is driven to rotate by a bevel gear drive group 7. The input end of the bevel gear drive group 7 is connected to the motor 10 inside the hot air oven body 1 through the drive rod 8 and the connector 9. The motor 10 rotates to drive the rotating table 6 to rotate.

[0016] The drive rod 8 is used to transmit the torque of the motor 10, and one end of the drive rod 8 is provided with multiple buffer grooves 81. The connector 9 is movably sleeved in the buffer groove 81 by the limiting block 14. There is a movable gap between the limiting block 14 and the buffer groove 81 to meet the axial floating allowance of the connector 9. That is, the connector 9 can swing freely on the outer wall of the drive rod 8 to a certain extent. The swing amplitude is the movable gap between the limiting block 14 and the buffer groove 81. The drying tray 2 has grooves on both sides to align with the convex rails 4 on both sides of the inner wall of the hot air oven body 1. The drying tray 2 can be installed inside the hot air oven body 1 through the convex rails 4. A drive block 3 is installed at the bottom of the drying tray 2. A bevel gear transmission group 7 and a drive rod 8 are installed inside the drive block 3.

[0017] The drying tray 2 is installed into the hot air oven body 1 by the convex rail 4 inside the hot air oven body 1, so that the connector 9 on one side of the drying tray 2 is coaxial with the drive head 11 on the inner wall of the hot air oven body 1. The drying tray 2 is pushed along the convex rail 4, and the connector 9 with the docking block 91 on its side will be inserted into the drive head 11 with the matching slot 12. At this time, the docking block 91 is squeezed by the slot 12 and obliquely guided to generate axial rotation. Then, the limiting block 14 on the inner wall of the connector 9 achieves axial rotation in the buffer groove 81 on the drive rod 8. After the rotation adjustment, the docking block 91 of the connector 9 will be smoothly guided into the corresponding slot 12, completing the trajectory constraint and final engagement.

[0018] The bevel gear drive assembly 7 includes a pair of vertically meshing bevel gears. The output end of the bevel gear drive assembly 7 is driven to the middle of the bottom end of the rotary table 6 via a shaft, and the input end of the bevel gear drive assembly 7 is driven to the drive rod 8.

[0019] A fastening screw 5 is rotatably installed at the bottom of the drive block 3. One end of the fastening screw 5 extends out of the drive block 3 and is screwed to the inner wall of the hot air oven body 1.

[0020] The motor 10 is installed outside the hot air oven body 1. The output end of the motor 10 extends into the hot air oven body 1 and drives the drive head 11. The drive head 11 is rotatably mounted on the inner wall of the hot air oven body 1 by bearing components. The inner wall of the drive head 11 has multiple slots 12 to match the docking block 91. The opening end of each slot 12 is chamfered to facilitate the smooth introduction and precise positioning of the docking block 91 during assembly.

[0021] In addition, a tapered guide head 13 is provided on one side of the connector 9, which assists the connector 9 in being inserted into the drive head 11 through the tapered structure.

[0022] In this embodiment, the workpiece is placed on the drying tray 2, the drying tray 2 is installed into the hot air oven body and the door is closed, and the hot air oven body 1 is operated to perform hot drying operation. The motor 10 is started to drive the drive head 11 to rotate. The drive head 1 drives the connector 9 to rotate. The limiting block 14 inside the connector 9 and the buffer groove 81 in the drive rod 8 are displaced in opposite directions until the limiting block 14 moves axially in the buffer groove 81 until they are completely fitted, thus establishing a rigid transmission connection. At this time, the connector 9 synchronously drives the rod 8 to rotate. Since the rod 8 is the power input unit of the bevel gear transmission group 7 inside the drying tray 2, when it rotates, it drives one of the bevel gears in the bevel gear transmission group 7 to rotate, thereby driving the rotation of the other bevel gear to drive the rotating table 6 connected to it to rotate. By rotating, the drying direction is changed to improve the uniformity of heating. Compared with static drying, the drying uniformity is effectively improved.

[0023] In practical application, when the drying tray 2 is connected to the drive head 11, the fastening screw 5 is rotated to make the fastening screw 5 screwed into the screw hole on the inner wall of the hot air oven body 1. Under the action of spiral rotation, the fastening screw 5 will drive the drying tray 2 to be locked inside the hot air oven body 1, ensuring the connection stability between the connector 9 and the drive head 11.

[0024] In addition, it should be noted that a buffer pad is installed on the inner wall of the buffer groove 81 on the side facing the direction of motor rotation. This buffer pad is similar to the buffer pad inside the coupling and is used to absorb the force generated when the motor rotates.

[0025] It is worth noting that the internal drying components of the hot air oven body 1, which were not explained in detail above, as well as their operating heating principles and processes, are common knowledge to those skilled in the art.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hot air drying oven capable of uniform drying, comprising a hot air drying oven body (1), characterized in that, The hot air oven body (1) has multiple drying trays (2) equipped with rotating tables (6) installed inside via a convex rail (4). The rotating tables (6) are driven to rotate by a bevel gear drive group (7). The input end of the bevel gear drive group (7) is connected to the motor (10) configured inside the hot air oven body (1) via a drive rod (8) and a connector (9). The drive rod (8) is used to transmit torque, and a plurality of buffer grooves (81) are provided at one end of the drive rod (8). A connector (9) is movably sleeved in the buffer groove (81) by a limiting block (14). There is a movable gap between the limiting block (14) and the buffer groove (81) to meet the axial floating allowance of the connector (9). A plurality of docking blocks (91) are provided on the outer wall of the connector (9) to dock with the output end of the motor (10).

2. The hot air drying oven capable of uniform drying according to claim 1, characterized in that, The drying tray (2) has grooves on both sides to connect with the convex rails (4) on both sides of the inner wall of the hot air oven body (1).

3. The hot air drying oven capable of uniform drying according to claim 1, characterized in that, The bevel gear drive group (7) includes a pair of vertically meshing bevel gears. The output end of the bevel gear drive group (7) is driven to the middle of the bottom of the rotary table (6) through the shaft. The input end of the bevel gear drive group (7) is driven to the drive rod (8). The drive rod (8) and the bevel gear drive group (7) are assembled together in the drive block (3) at the bottom of the baking tray (2).

4. A hot air drying oven capable of uniform drying according to claim 3, characterized in that, The bottom end of the drive block (3) is rotatably mounted with a fastening screw (5), one end of which extends out of the drive block (3) and is screwed to the inner wall of the hot air oven body (1).

5. A hot air drying oven capable of uniform drying according to claim 1, characterized in that, The output end of the motor (10) drives the installation of a drive head (11), which is rotatably mounted on the inner wall of the hot air oven body (1) by a bearing component, and the inner wall of the drive head (11) is provided with multiple slots (12) to match the docking block (91).

6. A hot air drying oven capable of uniform drying according to claim 1, characterized in that, A tapered guide head (13) is provided on one side of the connector (9).

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