Drying oven nozzle

Abstract

The utility model relates to a drying oven, in particular to a drying oven nozzle which comprises an air outlet plate, an air inlet plate, an air uniformizing plate and a sealing plate, and vertical folded edges are arranged on the two sides of the air outlet plate. The connecting screws are respectively connected with the air outlet plate and the air uniformizing plate; the positioning pin is arranged at the bottom of the air inlet plate; wherein the air inlet plate is arranged at the bottom of the air outlet plate, the air uniformizing plate is arranged on the air inlet plate and located in the air outlet plate, and the sealing plate is connected with the two ends of the air outlet plate, the two ends of the air inlet plate and the two ends of the air uniformizing plate respectively. According to the drying oven nozzle, the air outlet plate and the uniform sealing plate are fixed through the connecting screws, the flatness of the air outlet plate is greatly improved, the workload of welding and shaping is reduced, the working procedure and cost are reduced, positioning during installation is achieved through the positioning pins, the installation precision is high, and installation is convenient; the strength of the two sides of the air outlet plate is improved through the vertical folded edges, sealing positioning is facilitated, and positioning and mounting of the air hole plate are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of ovens, especially a kind of oven nozzle. BACKGROUND

[0002] As shown in Figure 4 Existing oven nozzle is composed of air outlet plate, air uniformizing plate, air inlet plate and sealing plate. Air outlet plate has air outlet hole, air uniformizing plate has air uniformizing hole, and air inlet plate has air inlet. Air uniformizing plate and air inlet plate are first spliced into one, and then air outlet plate is covered on air uniformizing plate, top is welded with air uniformizing plate, bottom is welded with air inlet plate, and both sides are welded with sealing plate. Since top of air outlet plate is connected with air uniformizing plate by welding, and welding leads to large deformation, which makes the flatness of air outlet plate poor, and needs to be shaped, which increases process and cost, and is inconvenient to shape, and needs to spend a lot of time to shape. In addition, the upper part of the existing nozzle air outlet plate is in the shape of a sharp angle, which leads to low bending accuracy, weak strength, and is not convenient to position and install with air return hole plate and sealing plate. Furthermore, the existing nozzle has no positioning reference when installing, which is time-consuming and laborious. SUMMARY

[0003] To solve the problems of process increase, cost increase, poor flatness, low machining accuracy, weak strength, inconvenient positioning and installation with sealing plate, and time-consuming and laborious installation due to lack of installation reference caused by welding deformation, the utility model provides an oven nozzle, and the specific technical scheme is as follows:

[0004] An oven nozzle comprises air outlet plate, air inlet plate, air uniformizing plate and sealing plate, both sides of the air outlet plate are provided with vertical folding edge; further comprising: connecting screw, the connecting screw is connected with the air outlet plate and the air uniformizing plate respectively; and positioning pin, which is arranged at the bottom of the air inlet plate; wherein the air inlet plate is arranged at the bottom of the air outlet plate, the air uniformizing plate is arranged on the air inlet plate and inside the air outlet plate, and the sealing plate is connected with both ends of the air outlet plate, the air inlet plate and the air uniformizing plate respectively.

[0005] Preferably, the air outlet holes on the air outlet plate are arranged in an array, and the triangle formed by three adjacent air outlet holes is an equilateral triangle.

[0006] Preferably, the air outlet plate is provided with first air outlet surface and second air outlet surface, and the included angle between the first air outlet surface and the second air outlet surface is 175±2°.

[0007] Further, the air outlet plate is further provided with third air outlet surface, the third air outlet surface is symmetrically arranged on both sides of the air uniformizing plate and faces the center of the air outlet plate, and a plurality of third air holes are arranged on the third air outlet surface in the length direction.

[0008] Further, the included angle between the third air outlet surface and the first air outlet surface is 135±5°.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] The oven nozzle provided by the utility model realizes the fixation between the air outlet plate and the uniform sealing plate through the connecting screw, greatly improves the flatness of the air outlet plate, reduces the workload of welding and shaping, reduces the process and cost, realizes the positioning during installation through the positioning pin, and is high in installation precision and convenient to install; the vertical folding edges improve the strength of the two sides of the air outlet plate, facilitate the positioning of the closed sealing plate, and also facilitate the positioning and installation of the air return hole plate. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is the sectional view of the utility model;

[0012] Figure 2 is the top view of the utility model;

[0013] Figure 3 is the assembly schematic view of the utility model and the air return hole plate;

[0014] Figure 4 is the sectional view of the prior nozzle. DETAILED DESCRIPTION

[0015] The utility model will be further described in combination with the drawings.

[0016] As Figures 1 to 3 shown, an oven nozzle comprises an air outlet plate 1, an air inlet plate 3, a uniform air plate 2, a sealing plate 4, a connecting screw 5 and a positioning pin 6, the air inlet plate 3 is arranged at the bottom of the air outlet plate 1, the uniform air plate 2 is arranged on the air inlet plate 3 and located inside the air outlet plate 1, the sealing plate 4 is connected with the two ends of the air outlet plate 1, the air inlet plate 3 and the uniform air plate 2 respectively, and vertical folding edges 16 are arranged on the two sides of the air outlet plate 1; the connecting screw 5 is connected with the air outlet plate 1 and the uniform air plate 2 respectively; the positioning pin 6 is arranged at the bottom of the air inlet plate 3 and comprises a plurality of positioning pins; the air outlet plate 1 is provided with air outlet holes 14, the uniform air plate 2 is provided with uniform air holes 21, the air inlet plate 3 is provided with air inlet holes 31, and the uniform air holes 21 are communicated with the air inlet holes 31 and the air outlet holes 14 respectively.

[0017] The top of the air outlet plate 1 is connected with the uniform air plate 2 through the connecting screw 5, the welding amount is reduced, the air outlet surface is more flat, and the blowing effect is better.

[0018] The upper part of the air outlet plate 1 is provided with vertical folding edges 16 on the two sides, the folding precision is improved, the strength is increased, the positioning with the sealing plate 4 is facilitated, and the positioning and installation of the air return hole plate 7 between two nozzle are also facilitated.

[0019] The positioning pin 6 on the air inlet plate 3 can be quickly and accurately positioned during installation, saving time and effort.

[0020] First, the air distribution plate 2 and the air inlet plate 3 are welded together, then the air outlet plate 1 is placed on the air distribution plate 2, the top of the air outlet plate 1 is connected to the air distribution plate 2 through connecting screws 5, the connecting screws 5 are screwed from the inside to the outside, that is, the connecting screws 5 are installed through the air inlet hole 31, the air outlet plate 1 is provided with a threaded hole, the air distribution plate 2 is provided with a through hole, and the connecting screw 5 is connected with the threaded hole through the through hole. The part of the connecting screw 5 higher than the air outlet plate 1 can be cut off and ground flat, the bottom of the air distribution plate 2 is welded to the air inlet plate 3, and the two sides are full-welded to the sealing plate 4 to ensure airtightness; finally, the positioning pin 6 is welded to the bottom of the air inlet plate 3.

[0021] In order to improve the uniformity and thermal efficiency of the air outlet, the air outlet holes 14 on the air outlet plate 1 are arranged in an array, and the triangle formed by the three adjacent air outlet holes 14 is an equilateral triangle. The air outlet holes 14 on the air outlet plate 1 are arranged at an angle of 60°, the air outlet is more uniform, and the thermal efficiency can be improved. According to different air outlet requirements, appropriate hole diameter and opening rate are selected.

[0022] In order to further improve the uniformity and thermal efficiency of the internal temperature of the oven, the air outlet plate 1 is provided with a first air outlet surface 11 and a second air outlet surface 12, the included angle A between the first air outlet surface 11 and the second air outlet surface 12 is 175±2°, the first air outlet surface 11 and the second air outlet surface 12 realize air outlet in different directions, and the uniformity of the internal temperature of the oven can be improved. Among them, the air outlet holes 14 on the first air outlet surface 11 and the second air outlet surface 12 of the air outlet plate 1 are arranged in an array, and the triangle formed by the three adjacent air outlet holes 14 is an equilateral triangle.

[0023] In order to further improve the uniformity and thermal efficiency of the internal temperature of the oven, the air outlet plate 1 is further provided with a third air outlet surface 13, the third air outlet surface 13 is symmetrically arranged on the two sides of the air distribution plate 2 and faces the center of the air outlet plate 1, and a plurality of third air holes 15 are arranged in the length direction on the third air outlet surface 13. The three air outlet surfaces take into account the center, middle part and two sides of the nozzle, so that the temperature in the oven is more uniform and the temperature control is better. The included angle B between the third air outlet surface 13 and the first air outlet surface 11 is 135±5°.

[0024] The oven nozzle is installed on the static pressure box of the oven, and has high precision, good strength, high thermal efficiency and convenient installation.

[0025] The technical principles of the present application are described above in conjunction with specific embodiments. These descriptions are only to explain the principles of the present application, and cannot be interpreted in any way as a limitation on the scope of protection of the present application. Based on the explanation here, those skilled in the art can think of other specific embodiments of the present application without creative labor, and these embodiments will fall within the scope of protection of the claims of the present application.

Claims

1. An oven nozzle, comprising an air outlet plate (1), an air inlet plate (3), an air distribution plate (2), and a sealing plate (4), characterized in that, The air outlet plate (1) has vertical folded edges (16) on both sides; it also includes: Connecting screws (5), which are respectively connected to the air outlet plate (1) and the air distribution plate (2); and A positioning pin (6) is located at the bottom of the air inlet plate (3); The air inlet plate (3) is located at the bottom of the air outlet plate (1), and the air distribution plate (2) is located on the air inlet plate (3) and inside the air outlet plate (1). The sealing plate (4) is connected to both ends of the air outlet plate (1), the air inlet plate (3) and the air distribution plate (2).

2. The oven nozzle according to claim 1, characterized in that, The air outlets (14) on the air outlet plate (1) are arranged in an array, and three adjacent air outlets (14) form an equilateral triangle.

3. An oven nozzle according to claim 1 or 2, characterized in that, The air outlet plate (1) is provided with a first air outlet surface (11) and a second air outlet surface (12), and the included angle between the first air outlet surface (11) and the second air outlet surface (12) is 175±2°.

4. The oven nozzle according to claim 3, characterized in that, The air outlet plate (1) is also provided with a third air outlet surface (13), which is symmetrically arranged on both sides of the air distribution plate (2) and facing the center of the air outlet plate (1). A number of third air holes (15) are arranged in an array along the length direction on the third air outlet surface (13).

5. The oven nozzle according to claim 4, characterized in that, The angle between the third air outlet surface (13) and the first air outlet surface (11) is 135±5°.

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