Air curtain device for air blowing head of air heater

Abstract

The utility model provides an air curtain device for a blowing head of an air heater, which comprises a fan and an air duct diversion part, the fan is arranged in the air duct diversion part, the fan guides airflow generated by the fan through the air duct diversion part, the airflow forms an air curtain at notches at two ends of a heating groove close to the blowing head, and hot air in the heating groove is prevented from flowing out from the notches. The air curtain device effectively prevents hot air leakage, keeps the temperature in the groove uniform, ensures uniform heating of workpieces, improves the shrinkage effect of the heat shrink tube, and guarantees the insulation protection quality. The air curtain design reduces hot air leakage, improves the heat energy utilization rate, reduces energy consumption, and conforms to the environmental protection concept; in addition, the air curtain isolates high-temperature hot air, high-temperature exposure is reduced, the scalding risk is reduced, and the safety of a working place is improved.

Description

Technical Field

[0001] The present application relates to the field of industrial hot air blowers, and in particular to an air curtain device for a blowing head of a hot air blower. Background Art

[0002] In industrial production, heat shrink tubing is often used for insulation protection of wires, tubes or flat materials. In order to tightly wrap the heat shrink tubing around the wires, tubes or flat materials, a heat source is needed to heat it so that it shrinks and fits tightly to the wrapped object. Industrial hot air blower is such an ideal heat source equipment.

[0003] Steps:

[0004] (1) Pre-slip the heat shrink tubing onto the wire, tube or flat material to be wrapped.

[0005] (2) The industrial hot air blower blows air into the heater through the blower, and the heater heats the air to the set temperature and directs the hot air to the workpiece through the blower head for heating. The hot air blower blows out high-temperature hot air, which softens the heat shrink tubing and begins to shrink.

[0006] (3) As the heat shrink tubing shrinks, it gradually adheres to the wire or tube until it completely wraps the object.

[0007] In the prior art, the blowing head of the hot air blower has a heating groove, which is designed to facilitate the placement and heating of the workpiece, but the hot air will be blown out along the two sides of the workpiece and from the notches on both sides of the heating groove. First, since the hot air leaks out from the notches on both sides of the U-shaped groove, the temperature in the groove may become uneven. This may cause uneven heating of the workpiece and affect the shrinkage effect of the heat shrink tube. Moreover, the leakage of hot air from the notch will not only cause the temperature in the groove to drop, but also cause a waste of heat energy. In addition, the leakage of high-temperature hot air (usually the temperature can reach 300 to 400°C) is likely to cause harm to the surrounding workers, such as burns. Utility Model Content

[0008] The purpose of the present application is to provide an air curtain device for a hot air blower head, which can prevent hot air from being lost laterally along the length direction of a workpiece and protect operators.

[0009] In order to achieve the above objectives, this application provides the following technical solutions:

[0010] A wind curtain device for a blower head of a hot air blower comprises a fan and an air duct guide portion, wherein the fan guides the airflow generated by the fan through the air duct guide portion, and the airflow forms a wind curtain at the notches at both ends of a heating slot near the blower head, thereby blocking the hot air in the heating slot from flowing out of the notches.

[0011] Furthermore, the air duct guide portion is an independent air duct box, and the air duct box has a first air duct therein.

[0012] Furthermore, the air duct box is arranged on the lower side of the hair dryer head, and the first air duct of the air duct box includes a first horizontal air duct portion and a first vertical air duct portion, the fan is installed in the first horizontal air duct portion, and the first vertical air duct portion is respectively arranged at the notches at both ends of the heating groove close to the hair dryer head, and the airflow generated by the fan in the first horizontal air duct portion is guided by the first vertical air duct portion to form a wind curtain at the notches of the heating groove on both sides of the hair dryer head.

[0013] Furthermore, the angle between the first horizontal air duct portion and the first vertical air duct portion is an arc angle.

[0014] Furthermore, the air duct boxes are respectively arranged on both sides of the hair dryer head, the first air duct of the air duct box is the second vertical air duct portion, the fan is installed in each second vertical air duct portion, and the airflow generated by the fan in the second vertical air duct portion will form wind curtains at the notches at both ends of the heating slot of the hair dryer head.

[0015] Furthermore, the air duct guide portion is installed on the protective cover of the hair dryer head, and the air duct guide portion and the protective cover of the hair dryer head are combined to form a third air duct.

[0016] Furthermore, the air duct guide portion is installed on the lower side of the protective cover of the hair dryer head, the third air duct includes a third horizontal air duct portion and a third vertical air duct portion, the fan is installed in the third horizontal air duct portion, and the third vertical air duct portion is respectively arranged at the notches of the heating groove on both sides of the protective cover close to the hair dryer head, and the airflow generated by the fan in the third horizontal air duct portion is guided by the third vertical air duct portion to form a wind curtain at the notches at both ends of the heating groove close to the hair dryer head.

[0017] Furthermore, the included angle between the third horizontal air duct portion and the third vertical air duct portion is an arc angle.

[0018] Furthermore, the air duct guide portion is respectively installed on both sides of the protective cover of the hair dryer head, the third air duct is a fourth vertical air duct portion, the fan is installed in each fourth vertical air duct portion, and the fan generates airflow in the fourth vertical air duct portion to form wind curtains at the notches at both ends of the heating slot of the hair dryer head.

[0019] The beneficial effects of this application are:

[0020] (1) The present application forms wind curtains at the slots at both ends of the heating slot, effectively blocking the leakage of hot air in the heating slot, thereby ensuring the stability and uniformity of the temperature in the slot. This helps the workpiece to be heated more evenly, thereby improving the shrinking effect of the heat shrink tube and ensuring the insulation protection quality of the wrapped object (such as wire, pipe or flat material).

[0021] (2) The design of the wind curtain of the present application significantly reduces the leakage of hot air from the heating slot, so that more heat energy can be directly applied to the workpiece instead of being lost to the surrounding environment. This not only improves the utilization efficiency of heat energy, but also reduces energy consumption, which is in line with the environmental protection concept of energy conservation and emission reduction.

[0022] (3) In this application, if the high-temperature hot air generated by the blower head leaks directly, it will pose a serious risk of scalding to surrounding workers. The wind curtain device effectively isolates these high-temperature hot air, reduces the high-temperature exposure area in the working environment, thereby greatly reducing the probability of safety accidents and improving the safety of the workplace. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of an air curtain device for a hot air blower head provided in one embodiment of the present application;

[0024] Figure 2 A cross-sectional view of an air curtain device for a hot air blower head provided in one embodiment of the present application;

[0025] Figure 3 A cross-sectional view of an air curtain device for a hot air blower head provided in one embodiment of the present application;

[0026] Figure 4 A top view of an air curtain device for a hot air blower head provided in one embodiment of the present application;

[0027] Figure 5 for Figure 4 Sectional view at AA;

[0028] Figure 6 A cross-sectional view of an air curtain device for a hot air blower head provided in one embodiment of the present application; Description of reference numerals:

[0029] Q, workpiece;

[0030] 1. Blowing head; 14. Wind curtain device; 13. Protective cover;

[0031] 111. Heating tank;

[0032] 141. fan; 142. air duct guide portion;

[0033] 143, air duct box; 144, first air duct; 145, third air duct; 1441, first horizontal air duct portion; 1442, first vertical air duct portion; 1443, second vertical air duct portion;

[0034] 1451, third horizontal air duct portion; 1452, third vertical air duct portion; 1453, fourth vertical air duct portion; DETAILED DESCRIPTION

[0035] The terms used in the implementation method part of this application are only used to explain the specific embodiments of this application, and are not intended to limit this application. The implementation method of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0036] like Figure 1 and Figure 2 As shown, a wind curtain device 14 for a hot air blower head 1 includes a fan 141 and an air duct guide portion 142. The fan 141 is arranged in the air duct guide portion 142. The fan 141 guides the airflow generated by the fan 141 through the air duct guide portion 142. The airflow forms a wind curtain at the notches E at both ends of the heating slot 111 near the blower head 1, blocking the hot air in the heating slot 111 from flowing out of the notches.

[0037] The wind curtain device 14 of the present application includes a fan 141 and a wind channel guide 142. The fan generates and guides airflow in a specific direction under the guidance of the wind channel guide. These airflows are precisely controlled at the notches E at both ends of the heating slot 111 near the hair dryer head 1, forming an invisible "curtain" composed of high-speed flowing air, such as Figure 1 Indicated by arrows. First, the air curtain tightly covers the notches E of the heating tank 111, like a barrier, effectively preventing the high-temperature hot air in the heating tank from escaping directly through these notches into the environment. This helps to keep the temperature in the heating tank stable and prevent heat loss.

[0038] In addition, by reducing the leakage of hot air, the air curtain helps maintain the uniformity of temperature distribution in the heating tank, which is crucial to ensure that the workpiece Q is evenly heated during the heating process.

[0039] Moreover, since the hot air is effectively retained in the heating tank, the workpiece Q can absorb heat more fully, thereby improving the shrinking effect of the heat shrink tube and ensuring the quality of insulation protection. The wind curtain design significantly reduces the waste of heat energy, improves the thermal energy utilization rate of the entire system, and thus reduces energy consumption, which is in line with the environmental protection concept of energy conservation and emission reduction. The high-temperature hot air is isolated in the heating tank by the wind curtain, reducing the risk of workers being directly exposed to high temperature environments, reducing the possibility of scalding accidents, and improving workplace safety.

[0040] like Figure 2 As shown, in one embodiment, the air duct guide portion 142 is an independent air duct box 143, and the air duct box 143 has a first air duct 144. As an independent component, the air duct box 143 has a compact structure and is easy to install and connect with other components such as the hair dryer 1.

[0041] like Figure 2As shown, in the present embodiment, the air duct box 143 is arranged on the lower side of the hair dryer head 1, and the first air duct 144 of the air duct box 143 includes a first horizontal air duct portion 1441 and a first vertical air duct portion 1442, the fan 141 is installed in the first horizontal air duct portion 1441, and the first vertical air duct portion 1442 is respectively arranged at the notches E at both ends of the heating groove 111 close to the hair dryer head 1, and the airflow generated by the fan 141 in the first horizontal air duct portion 1441 is guided by the first vertical air duct portion 1442 to form a wind curtain at the notches of the heating groove 111 on both sides of the hair dryer head 1.

[0042] like Figure 2 As shown, the fan 141 is horizontally mounted on the first horizontal air duct portion 1441. The horizontally mounted fan 141 makes the design of the first horizontal air duct portion 1441 more compact. Because the fan 141 itself occupies a part of the space in the air duct, the horizontal installation can more effectively utilize this space, reduce unnecessary air circulation paths, and thus reduce the volume of the entire horizontal air duct portion. This not only saves material costs, but also makes the entire air duct box 143 more portable and easy to install.

[0043] like Figure 2 As shown, in this embodiment, the angle between the first horizontal air duct portion 1441 and the first vertical air duct portion 1442 is an arc angle R. The arc angle design can guide the airflow to transition from the horizontal air duct portion to the vertical air duct portion more smoothly, reducing the turbulence and eddy current phenomenon of the airflow at the corner. This smooth transition helps to maintain the stability and continuity of the airflow and improve the formation effect of the air curtain.

[0044] like Figure 3 As shown, in this embodiment, the air duct box 143 is respectively arranged on both sides of the hair dryer 1, the first air duct 144 of the air duct box 143 is a second vertical air duct portion 1443, and the fan 141 is installed in each second vertical air duct portion 1443. The airflow generated by the fan 141 in the second vertical air duct portion 1443 will form a wind curtain at the notches at both ends of the heating groove 111 of the hair dryer 1. Since the fan 141 is directly installed in the second vertical air duct portion 1443, the airflow they generate can be immediately directed to the notch of the heating groove 111. This direct airflow path reduces unnecessary turns and resistance, making the formation of the air curtain more efficient and direct. By arranging an air duct box 143 and a fan 141 on both sides of the hair dryer 1, it can be ensured that the notches at both ends of the heating groove 111 can be evenly covered by airflow. This helps to form a continuous, stable and uniform wind curtain, which more effectively blocks the leakage of hot air.

[0045] like Figure 4 and Figure 5As shown, in another embodiment, the air duct guide portion 142 is installed on the protective cover 13 of the hair dryer head 1 , and the air duct guide portion 142 is combined with the protective cover 13 of the hair dryer head 1 to form a third air duct 145 .

[0046] like Figure 5 As shown, in the present embodiment, the air duct guide portion 142 is installed on the lower side of the protective cover 13 of the hair dryer head 1, the third air duct 145 includes a third horizontal air duct portion 1451 and a third vertical air duct portion 1452, the fan 141 is installed in the third horizontal air duct portion 1451, and the third vertical air duct portion 1452 is respectively arranged at the notches of the heating groove 111 on both sides of the protective cover 13 close to the hair dryer head 1, and the airflow generated by the fan 141 in the third horizontal air duct portion 1451 is guided by the third vertical air duct portion 1452 to form a wind curtain at the notches at both ends of the heating groove 111 close to the hair dryer head 1.

[0047] The air duct guide 142 is combined with the protective cover 13 of the hair dryer head 1 to form an integrated third air duct 145. This design not only simplifies the structure, but also makes the entire device more compact and saves installation space. At the same time, the integrated design also helps to improve the overall stability and aesthetics of the device.

[0048] Furthermore, as a part of the third air duct 145, the surface of the protective cover 13 is in direct contact with the flowing airflow, so that the heat on the protective cover 13 can be quickly transferred to the airflow and taken away.

[0049] like Figure 5 As shown, in this embodiment, the angle between the third horizontal air duct portion 1451 and the third vertical air duct portion 1452 is an arc angle R. The arc angle design can guide the airflow to transition from the horizontal air duct portion to the vertical air duct portion more smoothly, reducing the turbulence and eddy current phenomenon of the airflow at the corner. This smooth transition helps to maintain the stability and continuity of the airflow and improve the formation effect of the air curtain.

[0050] like Figure 6 As shown, in this embodiment, the air duct guides 142 are respectively installed on both sides of the protective cover 13 of the hair dryer 1, the third air duct 145 is a fourth vertical air duct portion 1453, and the fan 141 is installed in each fourth vertical air duct portion 1453. The airflow generated by the fan 141 in the fourth vertical air duct portion 1453 will form a wind curtain at the notches at both ends of the heating slot 111 of the hair dryer 1. Since the fans 141 are directly installed in each fourth vertical air duct portion 1453, the airflow they generate can be immediately and efficiently guided to the notches at both ends of the heating slot 111 of the hair dryer 1. This direct airflow path reduces unnecessary turns and resistance, making the formation of the wind curtain more rapid and effective.

[0051] By providing an air duct guide portion 142 and a fourth vertical air duct portion 1453 on both sides of the protective cover 13, it can be ensured that the slots at both ends of the heating slot 111 can be evenly covered by airflow. This helps to form a continuous, stable and uniform air curtain, more effectively blocking the leakage of hot air, while maintaining a stable temperature of the indoor environment.

[0052] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0053] In the embodiments of the present application, the devices or elements referred to or implied must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0054] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein, for example, can be implemented in an order other than those illustrated or described herein. In addition, the terms "may include" and "have" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products or devices.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application are described in detail with reference to the above embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An air curtain device for a hot air blower head, characterized in that: The fan comprises a fan and an air duct guide part, wherein the fan guides the airflow generated by the fan through the air duct guide part, and the airflow forms a wind curtain at the slots at both ends of the heating slot near the hair dryer head, thereby preventing the hot air in the heating slot from flowing out from the slots.

2. The air curtain device for a hot air blower head according to claim 1, characterized in that: The air duct guide portion is an independent air duct box, and the air duct box has a first air duct therein.

3. The air curtain device for a hot air blower head according to claim 2, characterized in that: The air duct box is arranged on the lower side of the hair dryer head, and the first air duct of the air duct box includes a first horizontal air duct portion and a first vertical air duct portion. The fan is installed in the first horizontal air duct portion, and the first vertical air duct portion is respectively arranged at the notches at both ends of the heating groove close to the hair dryer head. The airflow generated by the fan in the first horizontal air duct portion is guided by the first vertical air duct portion to form a wind curtain at the notches of the heating groove on both sides of the hair dryer head.

4. The air curtain device for a hot air blower head according to claim 3, characterized in that: The included angle between the first horizontal air duct portion and the first vertical air duct portion is an arc angle.

5. The air curtain device for a hot air blower head according to claim 2, characterized in that: The air duct boxes are respectively arranged on both sides of the hair dryer head, the first air duct of the air duct box is the second vertical air duct part, the fan is installed in each second vertical air duct part, and the airflow generated by the fan in the second vertical air duct part will form wind curtains at the notches at both ends of the heating groove of the hair dryer head.

6. The air curtain device for a hot air blower head according to claim 1, characterized in that: The air duct guide part is installed on the protective cover of the hair dryer head, and the air duct guide part is combined with the protective cover of the hair dryer head to form a third air duct.

7. The air curtain device for a hot air blower head according to claim 6, characterized in that: The air duct guide portion is installed on the lower side of the protective cover of the hair dryer head, the third air duct includes a third horizontal air duct portion and a third vertical air duct portion, the fan is installed in the third horizontal air duct portion, and the third vertical air duct portion is respectively arranged at the notches of the heating groove on both sides of the protective cover close to the hair dryer head. The airflow generated by the fan in the third horizontal air duct portion is guided by the third vertical air duct portion to form a wind curtain at the notches at both ends of the heating groove close to the hair dryer head.

8. The air curtain device for a hot air blower head according to claim 7, characterized in that: The included angle between the third horizontal air duct portion and the third vertical air duct portion is an arc angle.

9. The air curtain device for a hot air blower head according to claim 6, characterized in that: The air duct guide parts are respectively installed on both sides of the protective cover of the hair dryer head, the third air duct is the fourth vertical air duct part, the fan is installed in each fourth vertical air duct part, and the fan generates airflow in the fourth vertical air duct part to form wind curtains at the notches at both ends of the heating groove of the hair dryer head.

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