An air curtain machine with an adjustable air nozzle

Abstract

The present invention discloses an air curtain machine with an adjustable air nozzle, which comprises: a fan mechanism including a machine body and a wind wheel horizontally installed inside the machine body, with telescopic sleeves sleeved at both ends of the wind wheel; an air nozzle mechanism installed at the air outlet of the machine body, the air nozzle mechanism including a fixed air nozzle and an adjustable air nozzle slidably sleeved at both ends of the fixed air nozzle; a linkage mechanism including a double threaded rod and a driving mechanism installed on the double threaded rod, both ends of the double threaded rod being fixedly connected to the telescopic sleeves through threaded sleeves, and the telescopic sleeves at both ends being respectively connected to the two adjustable air nozzles through connecting plates; when adjusting the length of the air curtain in the present invention, the widths of the two side adjustable air nozzles are adjusted, and the corresponding telescopic sleeves can move synchronously, so that the parts of the wind wheel at both ends longer than the air nozzle are covered, making the air outlet width of the wind wheel consistent with the length of the air nozzle, capable of forming a stable air curtain and forming a high-pressure air seal.

Description

Technical Field

[0001] The present invention relates to the technical field of air curtain machines, and particularly relates to an air curtain machine with an adjustable air nozzle. Background Art

[0002] In a painting production line, to facilitate the flow of workpieces between various processes, generally an opening for the workpiece is left at the boundary, allowing the workpiece to enter the next link with the conveyor. Due to the existence of this opening, for the baking oven, there will be heat overflow, increasing energy consumption; for adjacent areas with different cleanliness levels, it will cause the problem of the low-cleanliness area polluting the high-cleanliness area. Therefore, an air curtain machine is set up. The air blown out by the air nozzle of the air curtain machine forms an air curtain (or an air knife), directly sealing the workpiece opening with high-pressure air and separating it into two parts inside and outside.

[0003] For different production lines or processing rooms, the widths of their feeding and discharging ports are different. Therefore, it is necessary to set air nozzles with different widths on different air curtain machines to adapt to different widths of feeding and discharging ports. In the prior art, an air nozzle with an adjustable length is usually set on the air curtain machine, which can blow out air curtains of different lengths. However, since the width of the air blown out by the fan inside the air curtain machine does not change, when the air blown out by the fan passes through the air nozzle with a shorter length, the effect of forming an air curtain is poor, and high-pressure air sealing cannot be effectively carried out. Summary of the Invention

[0004] The main purpose of the present invention is to provide an air curtain machine with an adjustable air nozzle, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: an air curtain machine with an adjustable air nozzle, which includes:

[0006] A fan mechanism, the fan mechanism includes a machine body and a wind wheel horizontally installed inside the machine body. Both ends of the wind wheel are sleeved with telescopic sleeves;

[0007] An air nozzle mechanism, installed at the air outlet of the machine body. The air nozzle mechanism includes a fixed air nozzle and an adjustable air nozzle slidably sleeved at both ends of the fixed air nozzle;

[0008] A linkage mechanism, the linkage mechanism includes a double-threaded rod and a driving mechanism installed on the double-threaded rod. Both ends of the double-threaded rod are fixedly connected to the telescopic sleeves through thread sleeves. The telescopic sleeves at both ends are respectively connected to the two adjustable air nozzles through connecting plates.

[0009] Preferably, one end of the telescopic sleeve is fixed to the side wall of the machine body, and the other end of the telescopic sleeve is connected to the thread sleeve.

[0010] Preferably, the connecting plate passes through the air outlet of the machine body, and a telescopic plate is installed at the air inlet end of the adjustable air nozzle.

[0011] Preferably, reinforcing ribs are fixed along the circumferential direction of the telescopic sleeve. The connecting plate is of an L-shaped structure and is slidably connected to the bottom of the inner cavity of the machine body.

[0012] Preferably, one end of the telescopic plate is connected to the end of the air outlet of the machine body, and the other end of the telescopic plate is connected to the adjustable air nozzle.

[0013] Preferably, both ends of the fixed air nozzle are of an open structure, and the outer end of the adjustable air nozzle is of a closed structure.

[0014] Preferably, the air inlet ends of the fixed air nozzle and the adjustable air nozzle are of a conical structure, and the air outlet ends of the fixed air nozzle and the adjustable air nozzle are of a square structure composed of two parallel guide plates.

[0015] Preferably, the air outlet of the machine body is arranged on one side of the bottom of the machine body, and the side of the bottom of the machine body away from the air outlet is of an arc structure.

[0016] Preferably, the driving mechanism includes a driving motor and a first bevel gear installed at the rotating shaft of the driving motor. A second bevel gear meshing with the first bevel gear is installed in the middle of the double threaded rod.

[0017] Preferably, the thread directions at both ends of the double threaded rod are opposite, and both ends of the double threaded rod are rotatably connected to the inner wall of the machine body.

[0018] Compared with the traditional technology, the beneficial effects of the present invention are as follows:

[0019] 1. For the air curtain machine with adjustable air nozzles, by setting the linkage mechanism, when adjusting the length of the air curtain, the widths of the two side adjustable air nozzles are adjusted, and the corresponding telescopic sleeves can move synchronously and cover the air wheels, so that the parts of the air wheels extending beyond the air nozzles at both ends are covered, making the air outlet width of the air wheels consistent with the length of the air nozzles, capable of forming a stable air curtain and a high-pressure air seal.

[0020] 2. For the air curtain machine with adjustable air nozzles, when it is necessary to adjust the length of the air curtain blown by the air nozzles, the driving mechanism drives the double threaded rod to rotate. The rotation of the double threaded rod drives the thread sleeves at both ends to move towards the middle. The thread sleeves moving towards the middle drive the telescopic sleeves connected to them to move, thereby adjusting the length of the telescopic sleeves. The telescopic sleeves cover the air wheels at both ends, so that the parts of the air wheels exceeding the length of the air nozzles cannot blow air. At the same time, when the ends of the telescopic sleeves move, the corresponding adjustable air nozzles are driven to move through the connecting plates, so that the telescopic sleeves and the adjustable air nozzles can move synchronously. Therefore, the air outlet width of the air wheels and the width of the air nozzle mechanism can be changed, making the air outlet width of the air wheels consistent with the length of the air nozzles, capable of forming a stable air curtain and a high-pressure air seal.

[0021] 3. The air curtain machine with the adjustable air nozzle is configured such that one end of the telescopic sleeve is fixed to the side wall of the machine body, and the other end of the telescopic sleeve is connected to the threaded sleeve. By moving the threaded sleeve, the telescopic sleeve can be extended or shortened, facilitating the covering of the wind wheel. Additionally, by installing reinforcing ribs on the telescopic sleeve, the strength of the telescopic sleeve can be enhanced, preventing contact between the telescopic sleeve and the operating wind wheel and avoiding damage. Moreover, by installing the telescopic plate, when the adjustable air nozzle moves, the adjustable air nozzle drives the end of the adjusting plate to extend and cover a part of the air outlet outside the adjustable air nozzle, preventing air leakage and enabling the formation of a stable air curtain.

[0022] 4. For the air curtain machine with the adjustable air nozzle, the fixed air nozzle and the inlet end of the adjustable air nozzle are conical structures, which can gather and direct the air blown by the wind wheel. The outlet ends of the fixed air nozzle and the adjustable air nozzle are square structures composed of two parallel guiding plates. Through the air outlet nozzle structure with parallel sides on both sides, a stable air curtain can be formed, thereby achieving high-pressure air sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the overall structure of the present invention Figure 1 ;

[0024] Figure 2 Schematic diagram of the overall structure of the present invention Figure 2 ;

[0025] Figure 3 Schematic diagram of the internal structure of the present invention;

[0026] Figure 4 Schematic diagram of the internal part structure of the present invention;

[0027] Figure 5 Schematic diagram of the telescopic sleeve and adjustable air nozzle structure of the present invention;

[0028] Figure 6 Schematic diagram of the structure of the adjustable air nozzle after adjustment of the present invention.

[0029] In the figures: 1, machine body; 2, fixed air nozzle; 3, adjustable air nozzle; 4, wind wheel; 5, telescopic sleeve; 6, air outlet; 7, telescopic plate; 8, connecting plate; 9, double threaded rod; 10, threaded sleeve; 11, drive motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0032] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium. It can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example 1, refer to Figures 1-4 As shown, an air curtain machine with an adjustable air nozzle includes:

[0034] A fan mechanism, the fan mechanism includes a body 1 and a wind wheel 4 horizontally installed inside the body 1. Both ends of the wind wheel 4 are sleeved with telescopic sleeves 5;

[0035] By setting the wind wheel, the wind input through the air inlet end of the body can be evenly conveyed through the horizontally installed wind wheel, which is convenient for outputting the wind to form an air curtain. And through the installed telescopic sleeves, the telescopic sleeves move towards the middle at both ends of the wind wheel, so that part of the wind wheel covered by the telescopic sleeves cannot blow air, and the blowing range of the wind wheel can be adjusted.

[0036] An air nozzle mechanism, installed at the air outlet 6 of the body 1, the air nozzle mechanism includes a fixed air nozzle 2 and an adjustable air nozzle 3 slidably sleeved at both ends of the fixed air nozzle 2;

[0037] By setting the air nozzle mechanism, and the adjustable air nozzles on both sides can slide along both sides of the fixed air nozzle, so as to adjust the overall length of the air nozzle mechanism and flexibly adjust the length of the air curtain;

[0038] And the side wall thickness of the fixed air nozzle 2 is relatively thin, which will not affect the width of the air curtain blown by the fixed air nozzle and the adjustable air nozzle.

[0039] A linkage mechanism, the linkage mechanism includes a double threaded rod 9 and a driving mechanism installed on the double threaded rod 9. Both ends of the double threaded rod 9 are fixedly connected to the telescopic sleeves 5 through threaded sleeves 10. The telescopic sleeves 5 at both ends are respectively connected to the two adjustable air nozzles 3 through connecting plates 8.

[0040] By setting up a linkage mechanism, when adjusting the length of the air curtain, the widths of the adjusting air nozzles on both sides are adjusted, and the corresponding telescopic sleeves can move synchronously and cover the wind wheel, so that the parts of the wind wheel at both ends that are longer than the air nozzles are covered, making the air outlet width of the wind wheel consistent with the length of the air nozzles, capable of forming a stable air curtain and creating a high-pressure air seal.

[0041] When it is necessary to adjust the length of the air curtain blown by the air nozzles, the double threaded rod is driven to rotate by the driving mechanism, and the rotation of the double threaded rod drives the threaded sleeves at both ends to move towards the middle, as Figure 6 shown. The threaded sleeves moving towards the middle drive the telescopic sleeves connected to them to move, thereby adjusting the length of the telescopic sleeves. The telescopic sleeves cover the wind wheels at both ends, so that the parts of the wind wheels exceeding the length of the air nozzles cannot blow air. At the same time, when the ends of the telescopic sleeves move, the corresponding adjusting air nozzles are driven to move through the connecting plates, enabling the telescopic sleeves and the adjusting air nozzles to move synchronously. Therefore, the air outlet width of the wind wheel and the width of the air nozzle mechanism can be changed, making the air outlet width of the wind wheel consistent with the length of the air nozzles, capable of forming a stable air curtain and creating a high-pressure air seal.

[0042] Refer to Figures 3-5 shown. In this embodiment, one end of the telescopic sleeve 5 is fixed to the side wall of the machine body 1, the other end of the telescopic sleeve 5 is connected to the threaded sleeve 10, the connecting plate 8 passes through the air outlet 6 of the machine body 1, a telescopic plate 7 is installed at the air inlet end of the adjusting air nozzle 3, the telescopic sleeve 5 is fixed with reinforcing ribs along its circumferential direction, the connecting plate 8 is of an L-shaped structure, and the connecting plate 8 is slidably connected to the bottom of the inner cavity of the machine body 1. One end of the telescopic plate 7 is connected to the end of the air outlet 6 of the machine body 1, and the other end of the telescopic plate 7 is connected to the adjusting air nozzle 3.

[0043] By setting one end of the telescopic sleeve 5 to be fixed to the side wall of the machine body 1 and the other end of the telescopic sleeve 5 to be connected to the threaded sleeve 10, the telescopic sleeve can be lengthened or shortened by moving the threaded sleeve, which is convenient for covering the wind wheel. And by installing reinforcing ribs on the telescopic sleeve, the strength of the telescopic sleeve can be improved, avoiding contact between the telescopic sleeve and the running wind wheel and causing damage. And by installing the telescopic plate, when the adjusting air nozzle moves, the adjusting air nozzle drives the end of the adjusting plate to elongate and cover the part of the air outlet outside the adjusting air nozzle, avoiding air leakage and capable of forming a stable air curtain.

[0044] In addition, refer to Figures 2-3 shown. The two ends of the fixed air nozzle 2 are of an open structure, the outer end of the adjusting air nozzle 3 is of a closed structure, the air inlet ends of the fixed air nozzle 2 and the adjusting air nozzle 3 are of a conical structure, and the air outlet ends of the fixed air nozzle 2 and the adjusting air nozzle 3 are of a square structure composed of two parallel guide plates.

[0045] By setting both ends of the fixed air nozzle 2 as an open structure and the outer end of the adjustable air nozzle 3 as a closed structure, through the combination of the fixed air nozzle and the adjustable air nozzle, by moving the adjustable air nozzles at both ends, the length of the overall air nozzle can be adjusted, facilitating flexible adjustment;

[0046] And since the air inlet ends of the fixed air nozzle 2 and the adjustable air nozzle 3 are conical structures, the air blown out by the air wheel can be gathered and guided, and the air outlet ends of the fixed air nozzle 2 and the adjustable air nozzle 3 are square structures composed of two parallel guide plates. Through the air outlet nozzle structure with parallel sides on both sides, a stable air curtain can be formed, thus achieving high-pressure air sealing.

[0047] In order to enable the air flow in the body to better discharge through the air outlet of the body and form a stable air curtain, the following embodiments are given:

[0048] Embodiment 2, refer to Figures 1-2 As shown, in this embodiment, the air outlet 6 of the body 1 is arranged on one side of the bottom of the body 1, and the side of the bottom of the body 1 away from the air outlet 6 is an arc structure.

[0049] By arranging an arc-shaped side on the side of the bottom of the body away from the air outlet, when the air generated by the air wheel blows out through the air outlet, the wind on the side of the air wheel away from the air outlet blows towards the arc surface, and is guided by the arc surface to re-enter the air wheel, and blows towards the air outlet along with the rotation of the air wheel, so that the air blown out by the air wheel can be stably output to the air outlet, resulting in high air outlet efficiency.

[0050] Refer to Figures 4-6 As shown, in this embodiment, the drive mechanism includes a drive motor 11 and a first bevel gear installed at the rotating shaft of the drive motor 11. A second bevel gear meshing with the first bevel gear is installed in the middle of the double threaded rod 9. The thread directions at both ends of the double threaded rod 9 are opposite, and both ends of the double threaded rod 9 are rotatably connected to the inner wall of the body 1.

[0051] Through the operation of the drive motor, the rotating shaft of the drive motor drives the first bevel gear to rotate. The first bevel gear meshes with the second bevel gear and drives the double threaded rod to rotate, thereby driving the thread sleeves at both ends of the double threaded rod to move. Since the thread directions at both ends of the double threaded rod are opposite, the thread sleeves can be moved inward or outward simultaneously, facilitating flexible control.

[0052] As can be seen from the above, for the air curtain machine with an adjustable air nozzle proposed by the present invention, when it is necessary to adjust the length of the air curtain blown by the air nozzle, the double threaded rod 9 is driven to rotate by the driving mechanism. The rotation of the double threaded rod 9 drives the threaded sleeves 10 at both ends to move towards the middle. The threaded sleeves 10 moving towards the middle drive the telescopic sleeves 5 connected to them to move. The telescopic sleeves 5 cover the air wheels 4 located at both ends, so that the parts of the air wheels 4 exceeding the length of the air nozzle cannot blow air. At the same time, when the ends of the telescopic sleeves 5 move, the corresponding adjusting air nozzles 3 are driven to move through the connecting plates 8, so that the telescopic sleeves 5 and the adjusting air nozzles 3 can move synchronously, and the air outlet width of the air wheels 4 is kept consistent with the length of the air nozzle.

[0053] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An air curtain machine with an adjustable air nozzle, Characterized in that: It includes: A fan mechanism, which includes a machine body (1) and a wind wheel (4) horizontally installed inside the machine body (1). Both ends of the wind wheel (4) are sleeved with telescopic sleeves (5); An air nozzle mechanism, installed at the air outlet (6) of the machine body (1). The air nozzle mechanism includes a fixed air nozzle (2) and an adjustable air nozzle (3) slidably sleeved at both ends of the fixed air nozzle (2); A linkage mechanism, which includes a double threaded rod (9) and a driving mechanism installed on the double threaded rod (9). Both ends of the double threaded rod (9) are fixedly connected to the telescopic sleeve (5) through a threaded sleeve (10). The telescopic sleeves (5) at both ends are respectively connected to the two adjustable air nozzles (3) through a connecting plate (8).

2. The air curtain machine with an adjustable air nozzle according to claim 1, Characterized in that: One end of the telescopic sleeve (5) is fixed to the side wall of the machine body (1), and the other end of the telescopic sleeve (5) is connected to the threaded sleeve (10).

3. The air curtain machine with an adjustable air nozzle according to claim 2, Characterized in that: The connecting plate (8) is arranged through the air outlet (6) of the machine body (1), and a telescopic plate (7) is installed at the air inlet end of the adjustable air nozzle (3).

4. The air curtain machine with an adjustable air nozzle according to claim 3, Characterized in that: Reinforcing ribs are fixed along the circumference of the telescopic sleeve (5). The connecting plate (8) is of an L-shaped structure and is slidably connected to the bottom of the inner cavity of the machine body (1).

5. The air curtain machine with an adjustable air nozzle according to claim 4, Characterized in that: One end of the telescopic plate (7) is connected to the end of the air outlet (6) of the machine body (1), and the other end of the telescopic plate (7) is connected to the adjustable air nozzle (3).

6. The air curtain machine with an adjustable air nozzle according to claim 1, Characterized in that: Both ends of the fixed air nozzle (2) are of an open structure, and the outer end of the adjustable air nozzle (3) is of a closed structure.

7. The air curtain machine with an adjustable air nozzle according to claim 1, Characterized in that: The air inlet ends of the fixed air nozzle (2) and the adjustable air nozzle (3) are of a conical structure, and the air outlet ends of the fixed air nozzle (2) and the adjustable air nozzle (3) are of a square structure composed of two parallel guide plates.

8. The air curtain machine with an adjustable air nozzle according to claim 1, Characterized in that: The air outlet (6) of the machine body (1) is arranged on one side of the bottom of the machine body (1), and the side of the bottom of the machine body (1) away from the air outlet (6) is of an arc structure.

9. The air curtain machine with an adjustable air nozzle according to claim 1, Characterized in that: The driving mechanism includes a driving motor (11) and a first bevel gear installed at the rotating shaft of the driving motor (11). A second bevel gear meshing with the first bevel gear is installed in the middle of the double threaded rod (9).

10. The air curtain machine with an adjustable air nozzle according to claim 9, Characterized in that: The thread directions at both ends of the double threaded rod (9) are opposite, and both ends of the double threaded rod (9) are rotatably connected to the inner wall of the machine body (1).

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