Constant temperature air blast drying oven

Abstract

The utility model discloses a constant temperature blast drying oven, including the box, its inside is provided with a plurality of load boards from top to bottom in proper order, the first mobile hole is all seted up on any one load board, is away from first mobile hole and is equipped with a plurality of holes on load board still, any one load board is fixed with the baffle, second mobile hole is seted up on the baffle, the heat supply mechanism, including the heating end, the heating end sets up in load board's both sides, the pushing mechanism, including the connecting portion, drive part and pushing plate, the connecting portion sliding connection is in first mobile hole with second mobile hole, and the lower extreme of connecting portion is provided with drive part. The utility model has the beneficial effect of: solve the drying oven in the prior art, in the drying process to material, the exhaust efficiency is poor, thereby leading to the subsequent material surface easy to crust, and the technical problem of the hidden danger for subsequent material taking.

Description

Technical Field

[0001] This utility model relates to the field of constant temperature forced air drying technology, specifically to a constant temperature forced air drying oven. Background Technology

[0002] Drying ovens are divided into two main categories based on the different materials being dried: electric heating forced-air drying ovens and vacuum drying ovens. They are now widely used in industries such as chemical, electronic communications, plastics, cables, electroplating, hardware, automobiles, optoelectronics, rubber products, molds, spraying, printing, medical, aerospace, and higher education. As the types of materials that need to be dried increase, the functions of drying ovens are also gradually increasing, making them more convenient and efficient to use. Chinese utility model CN222747624U proposes "a constant temperature forced-air drying oven". This device mainly solves the problem that the internal partitions of existing drying ovens cannot be adjusted and the internal space of the drying oven cannot be fully utilized. However, the exhaust structure of the drying oven adopts a fixed aperture, which cannot dynamically adjust the exhaust flow rate according to the material type, moisture content or drying stage. This exhaust method without control not only affects the drying uniformity, but also easily leads to the crusting of the material surface, internal adhesion or powder caking, which poses a hidden danger for subsequent material handling. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a constant temperature forced-air drying oven to solve the technical problem that the exhaust efficiency of the drying oven in the prior art is poor during the drying process of materials, which leads to the easy formation of a crust on the surface of the material and creates hidden dangers for subsequent material handling.

[0004] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: In a first aspect, this utility model provides a constant temperature forced-air drying oven, comprising: The box has multiple carrying plates arranged from top to bottom inside. Each carrying plate has a first moving hole. Multiple holes are also provided on the carrying plate away from the first moving hole. A partition is fixed on each carrying plate, and a second moving hole is provided on the partition. A heating mechanism, comprising a heating end disposed on both sides of the carrying plate; The material pushing mechanism includes a connecting part, a driving part, and a pushing plate. The connecting part is slidably connected in the first moving hole and the second moving hole, and the lower end of the connecting part is provided with a driving part. The driving part is used to drive the connecting part to drive the pushing plate to move along the length direction of the carrying plate. The exhaust mechanism includes a flow regulating section. The top of the housing has multiple exhaust ports, and the upper end of each exhaust port is provided with a flow regulating section.

[0005] In some embodiments, a first toothed groove is provided at the bottom of the inner cavity of the box, the driving part engages with the first toothed groove, and is used to drive the connecting part to move along the length direction of the first toothed groove.

[0006] In some embodiments, the number of the carrying plates is at least three, and the heating mechanism further includes a blower, which is installed outside the housing and has its air outlet located inside the housing.

[0007] In some embodiments, a cabinet door is movably installed on the front of the enclosure.

[0008] In some embodiments, the heating end includes a limiting shell and a plurality of electric heating tubes. The limiting shells are provided on both sides of the inner wall of the box. Three carrying plates are arranged between the limiting shells from top to bottom. The limiting shells are provided with a plurality of breathable mesh holes.

[0009] In some embodiments, the connecting part includes a movable vertical rod and three movable horizontal rods corresponding one-to-one with the carrying plate. The movable vertical rod is slidably connected in the first movable hole, and the three movable horizontal rods are fixed on the movable vertical rod. The movable horizontal rods are slidably connected in the second movable hole, and the ends of the movable horizontal rods are slidably connected to the carrying plate. The pusher plate is fixed to the lower end of any one of the movable horizontal rods.

[0010] In some embodiments, the lower end of the movable vertical rod is fixed with the driving unit, the driving unit including a first motor and a first gear, the first motor is mounted on the movable vertical rod, the output end of the first motor is connected to the first gear, and the first gear meshes in the first tooth groove.

[0011] In some embodiments, the flow regulating unit includes a housing, a baffle plate, and a power end; the housing is installed on the upper end of the box, and the baffle plate is rotatably connected inside the housing; the outer periphery of the baffle plate is provided with a second tooth groove, and the second tooth groove engages with the power end inside the housing.

[0012] In some embodiments, the baffle plate has a vent that cooperates with the exhaust port, the housing has an outlet that cooperates with the vent, and both the vent and the outlet are equipped with mesh plates.

[0013] In some embodiments, the power end includes a second motor and a second gear. The second motor is mounted outside the housing, and the output end of the second motor extends into the housing and is connected to the second gear, which meshes with the second tooth groove.

[0014] Compared with existing technologies, this utility model provides a constant temperature forced-air drying oven, in which multiple exhaust ports are opened on the top of the oven body to discharge the hot and humid gas generated during the drying process. A flow regulating part is provided at the upper end of these exhaust ports, allowing the operator to uniformly control the total exhaust flow of all exhaust ports through a single regulating mechanism. This avoids uneven humidity or localized over-humidity caused by moisture retention, thereby effectively inhibiting phenomena such as surface crusting, internal adhesion, or powder caking of materials, creating favorable conditions for subsequent smooth material removal. The connecting part of the pushing mechanism slides through the first moving hole on the carrier plate and the second moving hole on the partition plate, forming a stable guide. The driving part at its lower end can drive the pushing plate to move along the length of the carrier plate. After drying, the pushing plate can push the material as a whole to the front of the oven body under the driving action, eliminating the need for manual entry into the high-temperature cavity to remove materials layer by layer, significantly reducing the difficulty of operation and safety risks. The carrier plate has multiple holes for hot air circulation, and the first moving hole and the second moving hole on the partition are reasonably arranged. While ensuring the uniformity of heating, it provides reliable motion guidance for the pushing mechanism. The heating mechanism is located on both sides of the carrier plate. Together with the top centralized adjustable exhaust structure, it forms a coordinated path of side heating, top dehumidification and front pushing functions, so that the drying process control and post-drying treatment are efficiently connected. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure of the constant temperature forced-air drying oven provided in this embodiment of the utility model; Figure 2 This is a front view of the constant temperature forced-air drying oven provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the interior of the constant temperature forced-air drying oven provided in this embodiment of the utility model; Figure 4 This is a schematic diagram of the exhaust port structure of the constant temperature forced-air drying oven provided in this embodiment of the utility model; Explanation of reference numerals in the attached drawings: 1. Box body; 11. Carrying plate; 111. First moving hole; 112. Hole; 113. Partition; 1131. Second moving hole; 12. First tooth groove; 13. Cabinet door; 2. Heating mechanism; 21. Heating end; 211. Limiting shell; 212. Electric heating tube; 213. Ventilation mesh; 22. Blower; 3. Pushing mechanism; 31. Connecting part; 311. Moving vertical rod; 312. Moving horizontal rod; 32. Drive part; 321. First motor; 322. First gear; 33. Pushing plate; 4. Exhaust mechanism; 41. Exhaust port; 42. Flow regulating part; 421. Shell; 422. Baffle plate; 4221. Second tooth groove; 4222. Vent; 423. Air outlet; 424. Power end; 4241. Second motor; 4242. Second gear. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a constant temperature forced-air drying oven in one embodiment of the present invention. A constant temperature forced-air drying oven includes: The box 1 has multiple carrying plates 11 arranged from top to bottom inside. Each carrying plate 11 has a first moving hole 111. Multiple holes 112 are also provided on the carrying plate 11 away from the first moving hole 111. A partition 113 is fixed on each carrying plate 11. A second moving hole 1131 is provided on the partition 113. Heating mechanism 2 includes heating end 21, which is disposed on both sides of the carrying plate 11; The feeding mechanism 3 includes a connecting part 31, a driving part 32 and a feeding plate 33. The connecting part 31 is slidably connected in the first moving hole 111 and the second moving hole 1131, and the lower end of the connecting part 31 is provided with the driving part 32. The driving part 32 is used to drive the connecting part 31 to drive the feeding plate 33 to move along the length direction of the carrying plate 11. The exhaust mechanism 4 includes a flow regulating part 42. The top of the housing 1 has multiple exhaust ports 41, and the upper end of the exhaust port 41 is provided with the flow regulating part 42.

[0018] In this embodiment, the top of the box 1 is provided with multiple exhaust ports 41 for discharging the humid and hot gas generated during the drying process. A flow regulating part 42 is shared at the upper end of these exhaust ports 41, allowing the operator to uniformly control the total exhaust flow of all exhaust ports 41 through a single regulating mechanism. This avoids uneven humidity or localized over-humidity inside the box due to moisture retention, effectively suppressing phenomena such as surface crusting, internal adhesion, or powder caking of the material, creating favorable conditions for subsequent smooth material handling. The connecting part 31 of the pushing mechanism 3 slides through the first moving hole 111 on the carrier plate 11 and the second moving hole 1131 on the partition plate 113, forming a stable guide. Its lower drive part 32 can drive... The pusher plate 33 moves along the length of the carrier plate 11. After drying, the pusher plate 33 can push the material to the front of the box 1 under the driving action, eliminating the need for manual entry into the high-temperature cavity to remove material layer by layer, which significantly reduces the difficulty of operation and safety risks. The carrier plate 11 is provided with multiple holes 112 for hot air circulation, and the first moving hole 111 and the second moving hole 1131 on the partition plate 113 are reasonably arranged. While ensuring the uniformity of heating, it provides reliable motion guidance for the pusher mechanism 3. The heating mechanism 2 is located on both sides of the carrier plate 11. Together with the top centralized adjustable exhaust structure, it forms a coordinated path of side heating, top dehumidification and front pusher functions, so that the drying process control and post-drying treatment are efficiently connected.

[0019] In one embodiment, please refer to Figure 1 - Figure 3 To improve the pushing efficiency of the pusher plate 33, a first toothed groove 12 is provided at the bottom of the inner cavity of the housing 1. The drive unit 32 meshes with the first toothed groove 12 and is used to drive the connecting part 31 to move along the length direction of the first toothed groove 12. The connecting part 31 includes a moving vertical rod 311 and three moving horizontal rods 312 corresponding one-to-one with the carrying plate 11. The moving vertical rod 311 is slidably connected in the first moving hole 111, and three moving horizontal rods 312 are fixed on the moving vertical rod 311. The moving horizontal rods 312 slide... The moving crossbar 312 is slidably connected to the work plate 11 at the end of the moving crossbar 312. A pusher plate 33 is fixed at the lower end of any moving crossbar 312. A drive unit 32 is fixed at the lower end of the moving vertical bar 311. The drive unit 32 includes a first motor 321 and a first gear 322. The first motor 321 is mounted on the moving vertical bar 311. The output end of the first motor 321 is connected to the first gear 322. The first gear 322 meshes in the first tooth groove 12.

[0020] In this embodiment, the moving vertical rod 311 passes through the first moving hole 111 of each layer of carrying plate 11. The three moving horizontal rods 312 correspond one-to-one with the three layers of carrying plates 11 and are slidably connected to the second moving hole 1131 on the partition plate 113 and the end of the carrying plate 11. Since all the moving horizontal rods 312 are fixed on the same moving vertical rod 311, when the drive unit 32 is activated, the three layers of pushing plates 33 can move synchronously along the length direction of their respective carrying plates 11, avoiding material tipping, jamming, or uneven pushing caused by asynchrony. This is especially suitable for batch processing of multiple layers of the same or similar materials. The drive unit 32 includes a first motor 321 and a first gear 322 installed at the lower end of the moving vertical rod 311. The first gear 322 meshes with the first tooth groove 12 at the bottom of the housing 1, directly integrating the power source into the moving part. The linear motion conversion is achieved through the meshing of the first gear 322 and the first tooth groove 12. To ensure a smooth and reliable material pushing process, even when faced with heavy or sticky materials, the moving vertical rod 311 slides in the first moving hole 111 of each layer of the carrying plate 11, while the moving horizontal rod 312 slides in the second moving hole 1131 of the partition plate 113 and at the end of the carrying plate 11, forming a multi-point guiding constraint. This not only provides stable support for the pushing plate 33 but also effectively prevents shaking, tilting, or jamming caused by uneven force during the pushing process, ensuring the linearity and repeatability of the pushing action. The first toothed groove 12 is opened at the bottom of the inner cavity of the box 1, and the drive unit 32 is located at the lower end of the moving vertical rod 311 and runs close to the bottom surface. The entire transmission mechanism is arranged below the carrying area, without occupying effective drying space or blocking the hot air path of the lateral heating mechanism 2. At the same time, multiple holes 112 are reserved on the carrying plate 11 for hot air penetration, ensuring a uniform temperature field during the drying process. The existence of the pushing mechanism 3 does not affect the original drying performance.

[0021] In one embodiment, please refer to Figure 1 - Figure 3To facilitate adaptive adjustment of exhaust efficiency, the number of load plates 11 is at least three. The heating mechanism 2 also includes a blower 22, which is installed outside the housing 1, with its air outlet located inside the housing 1. A cabinet door 13 is movably installed on the front of the housing 1. The heating end 21 includes a limiting shell 211 and several electric heating tubes 212. Limiting shells 211 are provided on both sides of the inner wall of the housing 1. Three load plates 11 are arranged sequentially from top to bottom between the limiting shells 211. Multiple ventilation mesh holes 213 are opened on the limiting shells 211. The flow regulating part 42 includes a housing 421, a baffle plate 422, and a power end 424. The housing 421 is installed on the upper end of the housing 1, and a rotatable connection is made inside the housing 421. A baffle plate 422 has a second toothed groove 4221 on its outer periphery. The second toothed groove 4221 meshes with a power end 424 inside the housing 421. A vent 4222 that cooperates with an exhaust port 41 is provided on the baffle plate 422. An exhaust port 423 that cooperates with the vent 4222 is provided on the housing 421. Both the vent 4222 and the exhaust port 423 are equipped with mesh plates. The power end 424 includes a second motor 4241 and a second gear 4242. The second motor 4241 is installed outside the housing 421. The output end of the second motor 4241 extends into the housing 421 and is connected to the second gear 4242. The second gear 4242 meshes with the second toothed groove 4221.

[0022] In this embodiment, the blower 22 is installed outside the housing 1, with its outlet end introduced into the bottom of the housing 1, delivering forced airflow from bottom to top into the drying chamber. Combined with at least three load plates 11 arranged sequentially from top to bottom, each load plate 11 having multiple holes 112, the airflow can vertically penetrate all material layers, forming a stable and continuous main air duct. This effectively avoids the problem of lower-layer airflow attenuation caused by interlayer obstruction in traditional horizontal air supply, significantly improving the airflow's penetration ability and drying efficiency for multi-layered materials. The heating end 21 is located inside the housing 1. The unit consists of limiting shells 211 on both sides of the wall and several built-in electric heating tubes 212. Multiple ventilation holes 213 are provided on the limiting shells 211. When the main airflow from bottom to top passes through the area of ​​the limiting shells 211 on both sides, it can simultaneously absorb lateral radiation and convective heat, achieving dynamic heat replenishment and temperature balance. This effectively suppresses the phenomenon of lower upper-layer temperatures caused by heat dissipation during the upward flow of the airflow, ensuring that the three or more layers of carrying plates 11 are in a highly uniform thermal environment, guaranteeing the consistency of batch drying. The flow regulation unit 42 is integrated into the top of the chamber 1, including the shell 4. 21. A rotatable baffle plate 422 and a power end 424. The baffle plate 422 has a vent 4222 aligned with the exhaust port 41 of the housing 1, and the housing 421 has a corresponding exhaust port 423. The overlapping area of ​​the two is dynamically adjusted by rotating the baffle plate 422. The power end 424 is driven by a second motor 4241 installed outside the housing 421, which drives a second gear 4242 to mesh with the second tooth groove 4221 on the outer periphery of the baffle plate 422. This structure can flexibly adjust the total exhaust flow according to the drying stage, such as the initial stage of high humidity or the later stage of low humidity. It features rapid dehumidification and anti-caking properties, as well as heat preservation and energy saving, significantly improving process adaptability. The cabinet 1 has a movable door 13 on the front, which facilitates material loading and unloading and internal observation. The blower 22 is external, and the electric heating tube 212 is embedded in the limiting shell 211 to avoid high temperature or exposed moving parts. The top exhaust port 41 and the adjustment mechanism are far away from the operating surface to reduce the risk of direct hot air injection. In addition, the vent 4222 and the exhaust port 423 are equipped with mesh plates, which can not only block dust overflow but also prevent foreign objects from entering the adjustment mechanism, ensuring a clean working environment and long-term stable operation of the equipment.

[0023] To better understand this utility model, the following is combined with... Figures 1 to 4The technical solution of this utility model is described in detail as follows: First, the operator opens the movable cabinet door 13 on the front of the box 1 and places the material on the three-layer carrying plate 11. Each carrying plate 11 has multiple holes 112 for airflow to pass through. At the same time, a partition 113 with a second moving hole 1131 is fixed on its rear side to reserve a channel for subsequent material pushing. Then, the cabinet door 13 is closed and the equipment is started. The external blower 22 sends air in from the bottom of the box 1, forming a vertical forced airflow from bottom to top. This airflow passes through the holes 112 of each layer of carrying plate 11 in sequence, achieving uniform penetration of multiple layers of material. At the same time, the electric heating tubes 212 in the limiting shells 211 on both sides of the inner wall of the box 1 provide lateral heating to the rising airflow through the vent mesh 213, effectively balancing the temperature field and preventing the upper layer from being too low in temperature. The humid and hot gas generated during the drying process naturally rises to the top of the box 1 and is discharged through multiple exhaust ports 41. The flow regulation part 42 shared at the top is powered by a second motor 424. 1. Drive the baffle plate 422 to rotate, dynamically adjust the overlapping area of ​​the vent 4222 and the outlet 423, so as to accurately control the total exhaust flow according to the drying stage, such as rapid dehumidification in the early stage of high humidity and heat preservation and energy saving in the later stage of low humidity, effectively preventing the material surface from crusting, sticking or caking; After drying, start the pushing mechanism 3. The first motor 321 installed at the lower end of the moving vertical rod 311 drives the first gear 322 to mesh with the first tooth groove 12 at the bottom of the box 1, driving the entire connecting part 31 to move forward along the length of the carrying plate 11. Since the moving vertical rod 311 passes through the first moving hole 111 of each layer, and the three moving horizontal rods 312 correspond to the three layers of carrying plates 11 and slide in the second moving hole 1131 respectively, the three layers of pushing plates 33 achieve strict synchronous advancement, pushing the material as a whole to the front of the box 1 near the cabinet door 13. At this time, the operator only needs to open the door to easily take out the material without having to reach into the high temperature cavity, which significantly reduces the difficulty of operation and safety risks.

[0024] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A constant temperature forced-air drying oven, characterized in that, include: The box has multiple carrying plates arranged from top to bottom inside. Each carrying plate has a first moving hole. Multiple holes are also provided on the carrying plate away from the first moving hole. A partition is fixed on each carrying plate, and a second moving hole is provided on the partition. A heating mechanism, comprising a heating end disposed on both sides of the carrying plate; The material pushing mechanism includes a connecting part, a driving part, and a pushing plate. The connecting part is slidably connected in the first moving hole and the second moving hole, and the lower end of the connecting part is provided with a driving part. The driving part is used to drive the connecting part to drive the pushing plate to move along the length direction of the carrying plate. The exhaust mechanism includes a flow regulating section. The top of the housing has multiple exhaust ports, and the upper end of each exhaust port is provided with a flow regulating section.

2. The constant temperature forced-air drying oven according to claim 1, characterized in that: The bottom of the inner cavity of the box is provided with a first toothed groove, the driving part meshes with the first toothed groove, and is used to drive the connecting part to move along the length direction of the first toothed groove.

3. A constant temperature forced-air drying oven according to claim 2, characterized in that: The number of the load-bearing plates is at least three, and the heating mechanism also includes a blower, which is installed outside the housing and its air outlet is located inside the housing.

4. A constant temperature forced-air drying oven according to claim 1, characterized in that: The front of the enclosure is equipped with a cabinet door.

5. A constant temperature forced-air drying oven according to claim 3, characterized in that: The heating end includes a limiting shell and several electric heating tubes. The limiting shells are provided on both sides of the inner wall of the box. Three carrying plates are arranged between the limiting shells from top to bottom. Multiple ventilation mesh holes are opened on the limiting shells.

6. A constant temperature forced-air drying oven according to claim 3, characterized in that: The connecting part includes a movable vertical rod and three movable horizontal rods corresponding one-to-one with the carrying plate. The movable vertical rod is slidably connected in the first movable hole, and the three movable horizontal rods are fixed on the movable vertical rod. The movable horizontal rods are slidably connected in the second movable hole, and the ends of the movable horizontal rods are slidably connected to the carrying plate. The push plate is fixed to the lower end of any one of the movable horizontal rods.

7. A constant temperature forced-air drying oven according to claim 6, characterized in that: The lower end of the movable vertical rod is fixed with the driving unit, which includes a first motor and a first gear. The first motor is mounted on the movable vertical rod, and the output end of the first motor is connected to the first gear, which meshes in the first tooth groove.

8. A constant temperature forced-air drying oven according to claim 1, characterized in that: The flow regulating unit includes a housing, a baffle plate, and a power end; the housing is installed on the upper end of the box, and the baffle plate is rotatably connected inside the housing. The outer periphery of the baffle plate is provided with a second tooth groove, which meshes with the power end inside the housing.

9. A constant temperature forced-air drying oven according to claim 8, characterized in that: The shield plate has a vent that mates with the exhaust port, and the housing has an outlet that mates with the vent. Both the vent and the outlet are fitted with mesh panels.

10. A constant temperature forced-air drying oven according to claim 9, characterized in that: The power end includes a second motor and a second gear. The second motor is installed outside the housing, and the output end of the second motor extends into the housing and is connected to the second gear. The second gear meshes with the second tooth groove.

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