Hot air circulating shrinkage tunnel furnace

Abstract

The utility model relates to the technical field of capacitor production, specifically disclose hot air circulation shrinkage tunnel furnace, through being equipped with the air outlet at the top of inner casing, is equipped with the wind wheel above the air outlet, through drive motor drives the rotation of wind wheel, and the wind force of wind wheel can suck out the hot air in the inner casing from the air outlet, then again circulates diffusion in the inner casing and outer casing, to ensure that the hot air in the whole tunnel furnace is even state, and then make the sleeve be even heated shrinkage when heat shrinkage, guarantee the production quality of capacitor.

Description

Technical Field

[0001] This utility model relates to the field of capacitor production technology, and in particular to a hot air circulating shrink tunnel furnace. Background Technology

[0002] During capacitor production, after the sleeve is fitted onto the core package, it needs to be heat-shrinked to ensure effective wrapping. Currently, the method for heat-shrinking the sleeve onto the core package involves placing the sleeved core package inside a hot air tunnel furnace, where hot air is used to shrink the sleeve. However, the hot air in the tunnel furnace is currently mainly generated by heating elements. As the sleeved core package is conveyed and heat-shrinked within the furnace, the heating elements are located at both ends of the conveying path, leading to uneven heating of the sleeve on the outer surface of the core package. This results in uneven heat shrinkage of the sleeve, which in turn affects the production quality of the capacitor.

[0003] The technical problem to be solved by this application is: to design a hot air circulation shrink tunnel furnace that can ensure uniform heating of the casing and guarantee the effect of thermal shrinkage of the casing. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a hot air circulation shrinkage tunnel furnace that can make the casing heat up evenly and ensure the effect of casing thermal shrinkage.

[0005] The technical solution adopted by this utility model is as follows: a hot air circulating shrink tunnel oven, including a conveyor frame, a conveyor belt on the conveyor frame, an outer shell connected to the conveyor frame, the conveyor belt passing through the outer shell, heating tubes and air blowing pipes on both sides of the conveyor belt, an inner shell connected to the conveyor frame, an exhaust port on the top of the inner shell, a drive motor on the outer shell, a fan wheel connected to the drive motor, the fan wheel being located between the outer shell and the inner shell and corresponding to the exhaust port.

[0006] In some implementations, one end of the conveyor belt is equipped with a conveyor motor that is driven to drive it.

[0007] In some implementations, the inner housing is smaller than the outer housing, and a hot air circulation space is formed between the inner housing and the outer housing.

[0008] In some embodiments, several connecting blocks are provided on both sides of the conveyor frame, and the two sides of the outer casing are respectively installed with the connecting blocks on both sides of the conveyor frame.

[0009] In some implementations, support blocks are provided on both sides of the conveyor frame, and the heating pipe and the air blowing pipe are connected to the support blocks.

[0010] In some embodiments, the inner shell has connecting plates at both ends, which are connected to the outer shell, and the cross-section of the inner shell is U-shaped.

[0011] In some embodiments, the lower ends of the two sides of the inner shell are respectively provided corresponding to the upper ends of the support blocks.

[0012] This utility model has the following technical effects: by providing an exhaust port at the top of the inner shell and a fan wheel above the exhaust port, the fan wheel is driven by a drive motor to rotate. The wind force generated by the fan wheel can draw the hot air in the inner shell out from the exhaust port, and then circulate and diffuse in the inner shell and outer shell, thereby ensuring that the hot air in the entire tunnel furnace is uniform. This allows the sleeve to be heated and contracted evenly during heat shrinkage, ensuring the production quality of the capacitor. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the hot air circulating shrink tunnel furnace of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the hot air circulating shrink tunnel furnace of this utility model;

[0015] Figure 3 This is a schematic diagram of the separation structure of the impeller and exhaust port of the hot air circulating shrink tunnel furnace of this utility model.

[0016] The labels and names in the diagram correspond as follows: 1. Conveyor frame; 2. Conveyor belt; 3. Outer shell; 4. Heating element; 5. Air blowing pipe; 6. Inner shell; 60. Exhaust vent; 61. Drive motor; 62. Fan wheel; 20. Conveyor motor; 10. Connecting block; 11. Support block; 63. Connecting plate. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-3This utility model provides a technical solution: a hot air circulating shrink tunnel oven, including a conveyor frame 1, a conveyor belt 2, a conveyor motor 20 connected to one end of the conveyor belt 2, an outer shell 3 connected to the conveyor frame 1, the conveyor belt 2 passing through the outer shell 3, heating tubes 4 and air blowing pipes 5 on both sides of the conveyor belt 2, an inner shell 6 connected to the conveyor frame 1, an exhaust port 60 at the top of the inner shell 6, a drive motor 61 on the outer shell 3, a fan wheel 62 connected to the drive motor 61, the fan wheel 62 being positioned between the outer shell 3 and the inner shell 6 and corresponding to the exhaust port 60, when heat shrinking of the sleeve is required. The core package with the sleeve is placed at one end of the conveyor belt 2 and is transported to the outer shell 3 by the conveyor belt 2. The inner shell 6 is set above the conveyor belt 2. The heating tube 4 heats up and the air blowing pipe 5 is responsible for blowing air to diffuse the hot air from the heating tube 4. An exhaust port 60 is provided at the top of the inner shell 6, and a fan wheel 62 is provided above the exhaust port 60. By driving the fan wheel 62 to rotate by the drive motor 61, the wind force generated by the fan wheel 62 can draw the hot air in the inner shell 6 out from the exhaust port 60, and then circulate and diffuse in the inner shell 6 and the outer shell 3, thereby ensuring that the hot air in the entire tunnel furnace is uniform, so that the sleeve can be heated and contracted evenly during heat shrinkage, ensuring the production quality of the capacitor.

[0019] The inner shell 6 is smaller than the outer shell 3. A hot air circulation space is formed between the inner shell 6 and the outer shell 3. When the impeller 62 starts to circulate and diffuse the hot air, the hot air is drawn out from the exhaust port 60 of the inner shell 6 and diffused into the hot air circulation space. Finally, it diffuses into the inner shell 6 from the gap between the lower end of the inner shell 6 and the conveyor frame 1, thereby ensuring that the hot air can be diffused evenly.

[0020] Several connecting blocks 10 are provided on both sides of the conveyor frame 1. The two sides of the outer shell 3 are respectively installed with the connecting blocks 10 on both sides of the conveyor frame 1, and the two sides of the outer shell 3 are sealed to the conveyor frame 1, thereby reducing the loss of hot air inside the outer shell 3.

[0021] Support blocks 11 are provided on both sides of the conveyor frame 1. The heating tube 4 and the air blowing tube 5 are connected to the support blocks 11. The inner shell 6 is provided with connecting plates 63 at both ends. The connecting plates 63 are connected to the outer shell 3. The cross-section of the inner shell 6 is U-shaped. The lower ends of the two sides of the inner shell 6 are respectively provided corresponding to the upper ends of the support blocks 11, so that there is a gap between the inner shell 6 and the conveyor frame 1 to allow hot air to circulate and diffuse.

[0022] The working principle of this utility model is as follows: An exhaust port 60 is provided at the top of the inner shell 6, and a fan wheel 62 is provided above the exhaust port 60. By driving the fan wheel 62 to rotate, the wind force generated by the fan wheel 62 can draw the hot air in the inner shell 6 out from the exhaust port 60, and then circulate and diffuse in the inner shell 6 and the outer shell 3, thereby ensuring that the hot air in the entire tunnel furnace is uniform, so that the sleeve can be uniformly heated and contracted during heat shrinkage, thus ensuring the production quality of the capacitor.

[0023] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A hot air circulating shrink tunnel oven, comprising a conveyor frame, wherein the conveyor frame is provided with a conveyor belt, and the conveyor frame is provided with an outer casing connected thereto, the conveyor belt being disposed through the outer casing, characterized in that, Heating tubes and air blowing tubes are provided on both sides of the conveyor belt. The conveyor frame is also provided with an inner shell connected thereto. An exhaust port is provided on the top of the inner shell. A drive motor is provided on the outer shell. The drive motor is provided with a fan wheel connected to it. The fan wheel is located between the outer shell and the inner shell and is positioned corresponding to the exhaust port.

2. The hot air circulating shrink tunnel furnace according to claim 1, characterized in that, One end of the conveyor belt is equipped with a conveyor motor that is connected to it for transmission.

3. The hot air circulating shrink tunnel furnace according to claim 1, characterized in that, The inner shell is smaller than the outer shell, and a hot air circulation space is formed between the inner shell and the outer shell.

4. The hot air circulating shrink tunnel furnace according to claim 1, characterized in that, The conveyor frame is provided with several connecting blocks on both sides, and the outer shell is respectively installed with the connecting blocks on both sides of the conveyor frame.

5. The hot air circulating shrink tunnel furnace according to claim 1, characterized in that, Support blocks are provided on both sides of the conveyor frame, and the heating tube and the air blowing tube are both connected to the support blocks.

6. The hot air circulating shrink tunnel furnace according to claim 1, characterized in that, The inner shell has connecting plates at both ends, which are connected to the outer shell. The cross-section of the inner shell is U-shaped.

7. The hot air circulating shrink tunnel furnace according to claim 5, characterized in that, The lower ends of the two sides of the inner shell are respectively set at the upper ends of the support blocks.

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