An angle-adjustable air knife device

Abstract

The utility model is suitable for workpiece cleaning field provides an angle adjustable air knife device, including fixed base, air knife, adjusting disc, dial, locking assembly, automatic lifting mechanism, photoelectric sensor and electromagnetic valve, the automatic lifting mechanism is fixedly installed in fixed base top, adjusting disc is rotatedly connected with the output end of automatic lifting mechanism through fixed pivot, and the fixed pivot end is equipped with the shaft property baffle ring limit, air knife is fixedly connected with the side away from fixed pivot of adjusting disc, the dial is fixedly installed in automatic lifting mechanism output end and is arranged coaxially with adjusting disc, the locking assembly includes damping hinge and spring plunger positioning structure, the damping hinge is sleeved on fixed pivot, the spring plunger positioning structure includes spring plunger and positioning spherical groove, and the spring plunger is fixedly installed in the side of adjusting disc towards dial, in the utility model, the problem that structure is complex, inconvenient adjustment, easy to loosen after fixing and poor reliability is solved.

Description

Technical Field

[0001] This utility model belongs to the field of workpiece cleaning, and in particular relates to an adjustable-angle air knife device. Background Technology

[0002] In industrial production, air knives are widely used as key equipment in core processes such as workpiece surface cleaning, cooling, and drying. By spraying high-speed compressed air, they can quickly remove impurities from the workpiece surface, reduce the workpiece temperature, or remove surface moisture, directly affecting product processing quality and production efficiency.

[0003] The existing methods for adjusting the angle of air knives have the following prominent problems:

[0004] Complex structure: Existing air knife angle adjustment relies on multiple sets of connecting rods and bolts, resulting in a large number of parts and complicated assembly relationships. This not only occupies a lot of space but also increases manufacturing and maintenance costs.

[0005] Inconvenient adjustment: Angle adjustment requires disassembling and tightening multiple fixing bolts, which is cumbersome and makes it impossible to quickly switch the blowing angle. In addition, there is no intuitive angle reference during the adjustment process, making it difficult to accurately locate the target angle.

[0006] Easy to loosen after fixing: Traditional adjustment structures rely on the friction of the threads to fix the angle. Under complex working conditions such as vibration and airflow impact in the production site, the threads are prone to loosening, which leads to the air knife angle deviation.

[0007] Poor reliability: Wear and tear on the adjustment structure exacerbates the angle deviation problem, and the lack of an auxiliary locking mechanism leads to a significant decrease in adjustment accuracy and stability after long-term use, making it impossible to maintain a specific purging angle stably.

[0008] The aforementioned problems make it difficult for existing air knives to adapt to the needs of complex working conditions, which not only affects the consistency of process results but also reduces production efficiency.

[0009] Therefore, an adjustable-angle air knife device is needed to solve the above problems. Utility Model Content

[0010] The purpose of this utility model embodiment is to provide an adjustable-angle air knife device to solve the problems mentioned in the background art.

[0011] To achieve the above objectives, this utility model provides the following technical solution:

[0012] An adjustable-angle air knife device includes a fixed base, an air knife, an adjusting disc, a scale, a locking component, an automatic lifting mechanism, a photoelectric sensor, and a solenoid valve. The automatic lifting mechanism is fixedly mounted on the top of the fixed base. The adjusting disc is rotatably connected to the output end of the automatic lifting mechanism via a fixed rotating shaft. The end of the fixed rotating shaft is provided with an axial retaining ring for limiting the position. The air knife is fixedly connected to the side of the adjusting disc away from the fixed rotating shaft.

[0013] The dial is fixedly mounted on the output end of the automatic lifting mechanism and is coaxially arranged with the adjusting disc. The locking component includes a damping hinge and a spring plunger positioning structure. The damping hinge is fitted on the fixed rotating shaft. The spring plunger positioning structure includes a spring plunger and a positioning spherical groove. The spring plunger is fixedly mounted on the side of the adjusting disc facing the dial.

[0014] The end face of the dial facing the adjustment disc is provided with a ring array of positioning spherical grooves, and the ball of the spring plunger is adapted to engage with the positioning spherical groove.

[0015] The photoelectric sensor is installed on one side of the fixed base, and the detection direction corresponds to the air knife purging area. The solenoid valve is connected to the air knife inlet through a pipeline.

[0016] In a further technical solution, the dial is processed using laser marking technology and has angle markings on it. The positioning spherical grooves correspond one-to-one with the angle markings, covering the entire angle range.

[0017] In a further technical solution, one end of the damping hinge is fixedly connected to the output end of the automatic lifting mechanism, and the other end is fixedly connected to the adjusting disc. The stepless fine adjustment and angle maintenance of the adjusting disc are achieved through friction damping.

[0018] In a further technical solution, the adjusting disc is fixed with a movable handle by a lock nut. The movable handle is arranged radially along the adjusting disc and is used to drive the adjusting disc to rotate around a fixed axis.

[0019] In a further technical solution, the automatic lifting mechanism is a retractable support structure used to drive the air knife to rise and fall vertically, adapting to the purging needs of workpieces of different heights.

[0020] In a further technical solution, at least one set of spring plungers is evenly arranged along the circumference of the adjusting disc, and the ball of the spring plunger always fits against the end face of the dial under the action of elastic force.

[0021] In a further technical solution, the air knife is detachably connected to the adjusting disc via bolts.

[0022] In a further technical solution, the photoelectric sensor is electrically connected to the solenoid valve to control the start and stop of the air knife purging.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] This utility model solves the problem of complex structure: by integrating the adjustment disc, fixed rotating shaft, scale and locking components, it replaces the traditional complex adjustment structure with multiple links and bolts. The number of parts is significantly reduced, the assembly relationship is simplified, the space occupied is smaller, the manufacturing and maintenance costs are reduced, and it is suitable for use in compact working conditions.

[0025] Solving the problem of inconvenient adjustment: Operators can drive the adjustment disc to rotate the air knife by using the movable handle. With the laser marking of the angle on the scale, the target angle can be quickly located. The damping hinge enables stepless fine adjustment without disassembling any parts, greatly simplifying the operation steps and significantly improving the adjustment efficiency.

[0026] To solve the problem of easy loosening after fixing: the ball of the spring plunger is locked into the positioning spherical groove of the dial under the action of elastic force, forming a mechanical lock. Combined with the friction damping of the damping hinge, the double locking structure can effectively resist external interference such as vibration and airflow impact, ensuring that the air knife will not loosen during long-term operation.

[0027] To address the issue of poor reliability: the angle markings on the laser-marked dial are highly wear-resistant and maintain their precision for a long time; the spring plunger and the positioning spherical groove provide stable locking; and the damping hinge reduces adjustment wear. All structural connections are reliable, resulting in a low failure rate, significantly extended service life, reduced maintenance frequency, and improved overall device reliability.

[0028] To more clearly illustrate the structural features and effects of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the present invention from the front view;

[0030] Figure 2 This is a schematic diagram of the cross-section of the dial of this utility model;

[0031] Figure 3 This is a three-dimensional structural diagram of the dial of this utility model;

[0032] Figure 4 This is a side-view three-dimensional structural schematic diagram of the spring plunger of this utility model;

[0033] Figure 5 This is a schematic diagram of the structure of a partial three-dimensional explosion of the present invention.

[0034] In the diagram: 1. Fixed base; 2. Air knife; 3. Adjusting disc; 4. Scale dial; 5. Locking assembly; 51. Damping hinge; 52. Spring plunger positioning structure; 521. Spring plunger; 522. Positioning spherical groove; 6. Fixed shaft; 7. Shaft retaining ring; 8. Movable handle. Detailed Implementation

[0035] 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.

[0036] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0037] like Figure 1-5 As shown, this utility model embodiment provides an adjustable angle air knife device, including a fixed base 1, an air knife 2, an adjusting disc 3, a scale disc 4, a locking component 5, an automatic lifting mechanism, a photoelectric sensor, and a solenoid valve. The automatic lifting mechanism is fixedly mounted on the top of the fixed base 1. The adjusting disc 3 is rotatably connected to the output end of the automatic lifting mechanism through a fixed rotating shaft 6. The end of the fixed rotating shaft 6 is provided with a axial retaining ring 7 for limiting the position. The air knife 2 is fixedly connected to the side of the adjusting disc 3 away from the fixed rotating shaft 6.

[0038] The dial 4 is fixedly mounted on the output end of the automatic lifting mechanism and is coaxially arranged with the adjusting disc 3. The locking component 5 includes a damping hinge 51 and a spring plunger positioning structure 52. The damping hinge 51 is fitted on the fixed rotating shaft 6. The spring plunger positioning structure 52 includes a spring plunger 521 and a positioning spherical groove 522. The spring plunger 521 is fixedly mounted on the side of the adjusting disc 3 facing the dial 4.

[0039] The end face of the dial 4 facing the adjustment disc 3 is provided with a ring array of positioning spherical grooves 522, and the ball of the spring plunger 521 is adapted to engage with the positioning spherical grooves 522.

[0040] The photoelectric sensor is installed on one side of the fixed base 1, and the detection direction corresponds to the purging area of ​​the air knife 2. The solenoid valve is connected to the air inlet of the air knife 2 through a pipeline.

[0041] In this embodiment, by integrating key structures such as the fixed base 1, air knife 2, adjusting disc 3, scale dial 4, and locking component 5, a complete system of stable support, angle adjustment, precise positioning, secure locking, and coordinated operation is constructed. The fixed base 1 provides a rigid installation foundation for the entire device, ensuring that no components are displaced during operation. The automatic lifting mechanism enables vertical height adjustment of the air knife 2, adapting to the purging requirements of workpieces of different specifications. The adjusting disc 3 is rotatably connected to the lifting mechanism via the fixed rotating shaft 6, serving as the load-bearing and transmission component of the air knife 2, and can drive the air knife 2 to rotate around the fixed rotating shaft 6 at all angles. The scale dial 4 is coaxially set with the adjusting disc 3, providing a direct reference for angle adjustment. The damping hinge 51 and the spring plunger positioning structure 52 of the locking component 5 work together to achieve both fine-tuning of the angle and secure locking. The photoelectric sensor is linked with the solenoid valve to achieve precise response purging of incoming materials. The overall structure is compact, logically clear, and fully adaptable to industrial production conditions.

[0042] Specifically, the dial 4 is processed using laser marking technology, and it has angle markings. The positioning spherical groove 522 corresponds one-to-one with the angle markings, covering the entire angle range.

[0043] In this embodiment, angle markings are formed through precise laser processing. The positioning spherical groove 522 corresponds one-to-one with the markings, covering the entire angle range. This not only allows operators to quickly and intuitively locate the target angle, but also provides a precise locking point for the spring plunger 521, ensuring the consistency of angle positioning and solving the problem of lack of intuitive reference in existing air knife adjustment.

[0044] Specifically, one end of the damping hinge 51 is fixedly connected to the output end of the automatic lifting mechanism, and the other end is fixedly connected to the adjusting disc 3. The stepless fine adjustment and angle maintenance of the adjusting disc 3 are achieved through friction damping.

[0045] In this embodiment, the damping hinge 51 is fitted onto the fixed rotating shaft 6, with its two ends fixed to the output end of the lifting mechanism and the adjusting disk 3, respectively. When the adjusting disk 3 rotates, it generates uniform frictional damping, which can not only avoid positioning deviation caused by excessive adjustment speed and achieve stepless fine adjustment of the angle, but also help maintain stability after the angle is locked, reduce the influence of external vibration on the angle, and further improve the reliability of the device.

[0046] Specifically, the adjusting disc 3 is fixed with a movable handle 8 by a lock nut. The movable handle 8 is arranged radially along the adjusting disc 3 and is used to drive the adjusting disc 3 to rotate around the fixed shaft 6.

[0047] In this embodiment, the movable handle 8 provides a convenient force-applying component for the adjustment disc 3. The operator can drive the adjustment disc 3 to rotate the air knife 2 by rotating the movable handle 8. No additional tools are required, making the operation simple and labor-saving, greatly improving the convenience of angle adjustment and solving the problem of cumbersome operation of existing air knife adjustment.

[0048] Specifically, the automatic lifting mechanism is a telescopic support structure used to drive the air knife 2 to rise and fall vertically, adapting to the purging needs of workpieces of different heights.

[0049] In this embodiment, the automatic lifting mechanism adopts a telescopic design, which can flexibly adjust the vertical position of the air knife 2 according to the height of the workpiece, so that the blowing range of the air knife 2 accurately covers the surface of the workpiece, avoiding incomplete blowing or workpiece damage caused by unsuitable height, thus broadening the applicability of the device and improving its flexibility of use.

[0050] Specifically, at least one set of spring plungers 521 are evenly arranged around the circumference of the adjusting disk 3, and the ball of the spring plunger 521 always fits against the end face of the scale 4 under the action of elastic force.

[0051] In this embodiment, the spring plunger 521 is arranged around the circumference of the adjusting disk 3. The ball is always in contact with the end face of the scale 4 under the action of the elastic force, ensuring that the ball can quickly be inserted into the corresponding positioning spherical groove 522 during the rotation of the adjusting disk 3, so as to achieve instant locking. The setting of multiple sets of spring plungers 521 can further improve the stability of locking and avoid angle deviation caused by the failure of a single locking point.

[0052] Furthermore, the number of positioning spherical grooves 522 on the dial 4 can be adapted to the required precision of the air knife 2.

[0053] Specifically, the air knife 2 is detachably connected to the adjusting disc 3 via bolts.

[0054] In this embodiment, the air knife 2 and the adjusting disc 3 are detachably connected, which facilitates the maintenance, replacement and repair of the air knife 2 and adapts to the replacement of air knives 2 with different purging intensities and orifice diameter requirements.

[0055] Specifically, the photoelectric sensor is electrically connected to the solenoid valve to control the start and stop of the purge of the air knife 2.

[0056] In this embodiment, the photoelectric sensor is electrically connected to the solenoid valve to realize the linkage control of incoming material detection and purging start and stop, without the need for manual intervention, thereby improving the degree of automation and efficiency of the operation.

[0057] Working principle and usage process of this utility model:

[0058] Angle preset: According to the workpiece blowing requirements, the operator holds the movable handle 8 to drive the adjustment disk 3 to rotate around the fixed rotating shaft 6; during the adjustment process, the operator refers to the laser-marked angle line on the scale 4 to initially adjust the air knife 2 to near the target angle; the angle is steplessly fine-tuned through the friction damping of the damping hinge 51 until the air knife 2 reaches the preset blowing angle.

[0059] Angle locking: When the air knife 2 is adjusted to the target angle, the spring plunger 521 on the adjusting disc 3 automatically engages its ball in the corresponding positioning spherical groove 522 on the scale 4 under its own elastic force, forming a mechanical lock; at the same time, the friction damping generated by the damping hinge 51 helps to maintain the angle stability and prevent the air knife 2 from shifting due to external interference.

[0060] Height Adaptation: The photoelectric sensor detects the incoming material on the production line in real time. When the workpiece is detected to be close to the blowing area of ​​the air knife 2, a signal is sent to the automatic lifting mechanism. The automatic lifting mechanism starts and extends and retracts, driving the adjusting disc 3 and the air knife 2 to move in the vertical direction until the height of the air knife 2 is adapted to the workpiece blowing requirements.

[0061] Blowing operation: After the height of air knife 2 is adjusted to the correct position, the photoelectric sensor triggers the solenoid valve to open, and compressed air is introduced into air knife 2 through the pipeline. Air knife 2 sprays high-speed airflow at a preset fixed angle to complete the blowing, cooling or drying operation.

[0062] Work reset: When the workpiece leaves the detection range of the photoelectric sensor, the solenoid valve closes and the air knife 2 stops spraying air; the automatic lifting mechanism drives the air knife 2 to reset to the initial height and wait for the next material arrival signal; if it is necessary to change the blowing angle, manually pull the movable handle 8 to overcome the elastic force of the spring plunger 521, so that the ball disengages from the positioning spherical groove 522, and repeat the above angle preset and locking steps.

[0063] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0064] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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. An adjustable-angle air knife device, comprising a fixed base (1), an air knife (2), an adjusting disc (3), a scale disc (4), a locking assembly (5), an automatic lifting mechanism, a photoelectric sensor, and a solenoid valve, characterized in that: The automatic lifting mechanism is fixedly mounted on the top of the fixed base (1). The adjusting disc (3) is rotatably connected to the output end of the automatic lifting mechanism through the fixed rotating shaft (6). The end of the fixed rotating shaft (6) is provided with a axial retaining ring (7) for limiting. The air knife (2) is fixedly connected to the side of the adjusting disc (3) away from the fixed rotating shaft (6). The dial (4) is fixedly mounted on the output end of the automatic lifting mechanism and is coaxially arranged with the adjusting disc (3). The locking component (5) includes a damping hinge (51) and a spring plunger positioning structure (52). The damping hinge (51) is fitted on the fixed rotating shaft (6). The spring plunger positioning structure (52) includes a spring plunger (521) and a positioning spherical groove (522). The spring plunger (521) is fixedly mounted on the side of the adjusting disc (3) facing the dial (4). The dial (4) has a ring array of positioning spherical grooves (522) on the end face facing the adjustment disc (3), and the ball of the spring plunger (521) is adapted to engage with the positioning spherical grooves (522). The photoelectric sensor is installed on one side of the fixed base (1), and the detection direction corresponds to the air knife (2) purging area. The solenoid valve is connected to the air inlet of the air knife (2) through a pipeline.

2. The adjustable-angle air knife device according to claim 1, characterized in that: The dial (4) is processed by laser marking technology and has angle markings on it. The positioning spherical groove (522) corresponds one-to-one with the angle markings.

3. The adjustable-angle air knife device according to claim 1, characterized in that: One end of the damping hinge (51) is fixedly connected to the output end of the automatic lifting mechanism, and the other end is fixedly connected to the adjusting disc (3).

4. The adjustable-angle air knife device according to claim 1, characterized in that: The adjusting disc (3) is fixed with a movable handle (8) by a lock nut, and the movable handle (8) is arranged radially along the adjusting disc (3).

5. The adjustable-angle air knife device according to claim 1, characterized in that: The automatic lifting mechanism is a retractable support structure.

6. The adjustable-angle air knife device according to claim 1, characterized in that: At least one set of spring plungers (521) are evenly arranged around the circumference of the adjusting disk (3), and the ball of the spring plunger (521) always fits the end face of the scale (4) under the action of elastic force.

7. The adjustable-angle air knife device according to claim 1, characterized in that: The air knife (2) is detachably connected to the adjusting disc (3) by bolts.

8. The adjustable-angle air knife device according to claim 1, characterized in that: The photoelectric sensor is electrically connected to the solenoid valve.

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