Air knife angle adjusting device
By designing the angle adjustment device of the air knife, the swing structure of the knife body and precise rotation driving are used to solve the problem that the air knife angle is difficult to accurately adjust, and high accuracy of the thickness of the coating is achieved.
Patent Information
- Application Number
- CN202422086869.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-08-27
AI Technical Summary
During the process of galvanizing the metal plate surface or other metals for thickness adjustment, it is difficult to accurately adjust the angle of the air knife, resulting in the impact of the thickness adjustment accuracy of the coating.
An air knife angle adjustment device is designed, including an outer beam, an inner beam, a knife body and a rotating drive. Through the swing structure of the knife body and precise rotational drive, the angle adjustment between the air knife and the galvanized plate is achieved.
This device improves the accuracy of the air knife blowing on the surface of the galvanized plate, achieves higher adjustment accuracy and more stable adjustment state, and ensures the thickness accuracy of the coating.
Smart Images
Figure CN222935476U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metal surface treatment devices, and specifically, to an air knife angle adjustment device. Background Art
[0002] An air knife is an industrial device widely used in various applications that require a directional and high-speed air flow. Its working principle is to convert compressed air into a thin and powerful air flow, which can be used to remove moisture, dust or other impurities on the surface of an object, or to control the coating or the thickness of a metal coating in a coating process. The air knife beam is a component of the air knife, usually referring to the structure that supports the air knife and ensures its correct position and angle. Among them, during the process of determining the thickness of zinc or other metals plated on the surface of a metal plate, since it is necessary to always maintain the fluidity of the surface coating metal material, the overall air knife thickness determination process needs to be carried out at a temperature of 300 - 500 °C. The air knife is prone to position deviation under high temperature and high air flow conditions, thus affecting the accuracy of the final coating thickness determination. And after the position and angle of the air knife deviate, it is difficult to achieve precise adjustment with the simple cooperation of the beam and the air knife in the prior art. Content of the Utility Model
[0003] The utility model provides an air knife angle adjustment device, which solves the problem that it is difficult to precisely adjust the angle of the air knife during the process of determining the thickness of zinc or other metals plated on the surface of a metal plate in the related art.
[0004] The technical solution of the utility model is as follows:
[0005] An air knife angle adjustment device includes:
[0006] An outer beam, defining the length direction of the outer beam as the longitudinal direction, and defining the direction perpendicular to the length direction of the beam in the horizontal direction as the transverse direction.
[0007] An inner beam, which is transversely slidably arranged on the outer beam.
[0008] A knife body, which is swingably arranged on the inner beam.
[0009] A first rotation driving member, which is arranged on the outer beam, and the output end is in transmission connection with the knife body to drive the knife body to swing. One end of the inner beam is swingably provided with the knife body, and the knife body has an arc-shaped rack portion.
[0010] A rotating transmission shaft, which is rotatably arranged on the inner beam and has a gear portion. The output end of the first rotation driving member is in transmission connection with the rotating transmission shaft, and the gear portion meshes with the arc-shaped rack portion to drive the rotating transmission shaft to rotate and then drive the knife body to rotate.
[0011] As a further technical solution, it further includes side baffle devices. The two side baffle devices are arranged oppositely and are used to block both sides of the galvanized sheet. The side baffle devices include:
[0012] A longitudinal baffle carriage, which is slidably arranged longitudinally on the outer beam.
[0013] A cylinder, which is arranged on the outer beam and has an output end arranged on the longitudinal baffle carriage to drive the longitudinal baffle carriage to slide.
[0014] A baffle member, which moves along with the longitudinal baffle carriage. The baffle member has a blocking portion for blocking the galvanized sheet. A material guiding space is formed between the two groups of baffle members.
[0015] As a further technical solution, it further includes:
[0016] A sliding baffle, which is longitudinally slidably arranged on the outer beam, is located on one longitudinal side of the longitudinal baffle carriage, and the two sliding baffles are located between the two longitudinal baffle carriages. The sliding baffle is always in contact with the longitudinal baffle carriage.
[0017] As a further technical solution, it further includes:
[0018] A second lead screw, which is rotatably arranged on the outer beam, is located on one side of the cylinder, and its length direction is parallel to the length direction of the cylinder.
[0019] A second lead nut, which is arranged on the sliding baffle. The second lead screw meshes with the second lead nut.
[0020] A third rotational driving member, which is arranged on the outer beam. The output end of the third rotational driving member drives the second lead screw to rotate.
[0021] As a further technical solution, it further includes:
[0022] A transverse baffle carriage, which is transversely and longitudinally slidably arranged on the longitudinal baffle carriage.
[0023] A third lead nut, which is arranged on the transverse baffle carriage.
[0024] A third lead screw, which is rotatably arranged on the longitudinal baffle carriage and is used to drive the third lead nut to slide transversely after rotation.
[0025] As a further technical solution, it further includes:
[0026] Lifting baffle carriage, the lifting baffle carriage is arranged to lift and slide on the transverse baffle carriage,
[0027] Fourth lead nut, the fourth lead nut is arranged on the lifting baffle carriage,
[0028] Fourth lead screw, the fourth lead screw is rotatably arranged on the transverse baffle carriage, and after rotation, it drives the fourth lead nut to lift and slide.
[0029] As a further technical solution, the lifting baffle carriage has a first card slot and a second card slot arranged vertically in sequence. The first card slot is a wedge-shaped slot, and the second card slot is a vertical strip-shaped slot. Both the first card slot and the second card slot have an entrance part. The entrance part of the first card slot is located above the first card slot, and the entrance part of the second card slot is located on the side of the second card slot. The baffle member has a first card part and a second card part arranged vertically in sequence. The first card part and the second card part are respectively used to be inserted into the first card slot and the second card slot.
[0030] As a further technical solution, one end of the inner beam has an arc-shaped scale groove, the arc-shaped scale groove is concentrically arranged with the rotating shaft of the tool body, and the rotating shaft of the tool body has an indicating part, and the indicating part points to the arc-shaped scale groove.
[0031] As a further technical solution, the first rotation driving member and the rotating transmission shaft are connected by a universal joint.
[0032] The working principle and beneficial effects of the present utility model are as follows:
[0033] In the present utility model, there are a fixed outer beam and an inner beam that slides horizontally on the outer beam. The tool body is connected to the inner beam through a hinge point to form a swinging structure, allowing the tool body to swing within a certain angle range to adjust the contact angle between the air knife and the surface of the galvanized sheet. The front end of the tool body is provided with a flat air flow ejection port for converting compressed air into a high-speed and uniform air flow sheet. The first rotation driving member is a servo motor, which is installed on one side of the outer beam, and its output shaft is connected to one end of the tool body through a coupling, a universal joint, etc., to precisely control the swinging angle of the tool body, realizing fine adjustment of the angle between the air knife and the galvanized sheet, so as to achieve the effect of precisely blowing the air knife on the surface of the galvanized sheet. Since the first rotation driving member is arranged on the outer beam with a stable environment and working position, and is connected to the inner beam or the tool body through a motion series connection mechanism for precise further adjustment, the tool part of this device can have higher adjustment accuracy and a more stable adjustment state compared with the prior art. In this embodiment, the arc-shaped rack part is arranged on one side of the rotating shaft of the tool body and is driven to rotate by a gear part that is rotatably arranged on the inner beam. By introducing the cooperation of a rotating transmission shaft with the gear part and the arc-shaped rack part, precise control and stable transmission of the angle of the tool body are achieved. The misaligned arrangement of the rotating shaft of the tool body and the driving position makes the position of the transmission connection point between the output end of the rotation driving device and the tool body more stable, not easily broken or deformed, and can also drive the swinging of the tool body more labor-saving and smoothly. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] The above characteristics, technical features, advantages and their implementation manners of the present utility model will be further described below in a clear and understandable manner in combination with the drawings for the preferred embodiments.
[0035] Figure 1 is a schematic structural diagram of the present utility model;
[0036] Figure 2 is Figure 1 a partial enlarged structural diagram of A in
[0037] Figure 3 is Figure 1 a partial enlarged structural diagram of C in
[0038] Figure 4 is Figure 1 a partial enlarged structural diagram of B in
[0039] Figure 5 is Figure 1 a partial enlarged structural diagram of D in
[0040] In the figure: outer beam - 1, inner beam - 2, arc scale groove - 201, tool body - 3, arc rack portion - 301, indicating portion - 302, first rotation driving member - 4, rotation transmission shaft - 5, side blocking device - 6, longitudinal baffle carriage - 601, air cylinder - 602, baffle member - 603, blocking portion - 604, material guiding space - 605, first clamping portion - 606, second clamping portion - 607, sliding blocking member - 7, second lead screw - 8, second lead nut - 9, third rotation driving member - 10, transverse baffle carriage - 11, third lead nut - 12, third lead screw - 13, lifting baffle carriage - 14, first card slot - 1401, second card slot - 1402, entrance portion - 1403, fourth lead nut - 15, fourth lead screw - 16, gear portion - 17. Detailed implementation manner
[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings, and other implementation manners can also be obtained.
[0042] To make the drawings concise, only the parts related to the utility model are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also means "more than one" situation, and "several" includes "two" and "more than two".
[0043] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" 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 or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. 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 situations.
[0044] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.
[0045] Refer to Figures 1 to 5, which is the first embodiment of the present utility model, proposes an air knife angle adjustment device, including an outer beam 1. The length direction of the outer beam 1 is defined as the longitudinal direction, and the direction perpendicular to the length direction of the beam in the horizontal direction is defined as the transverse direction. An inner beam 2 is slidably arranged transversely on the outer beam 1, and a knife body 3 is swingably arranged on the inner beam 2. A first rotation driving member 4 is arranged on the outer beam 1, and its output end is in transmission connection with the knife body 3 to drive the knife body 3 to swing. One end of the inner beam 2 is swingably provided with the knife body 3. The knife body 3 has an arc-shaped rack portion 301. A rotating transmission shaft 5 is rotatably arranged on the inner beam 2 and has a gear portion 17. The output end of the first rotation driving member 4 is in transmission connection with the rotating transmission shaft 5, and the gear portion 17 meshes with the arc-shaped rack portion 301 to drive the rotating transmission shaft 5 to rotate and then drive the knife body 3 to rotate.
[0046] In this embodiment, considering that the process of determining the thickness of the surface coating of a galvanized sheet needs to be carried out at a certain high temperature. In the prior art, a single air knife is arranged on the overall frame. The high temperature and air flow are likely to cause an angular deviation between the air knife and the galvanized sheet, making it difficult to perform precise corresponding adjustment, thus affecting the final thickness determination effect. This solution is provided with a fixed outer beam 1 and an inner beam 2 slidably arranged transversely on the outer beam 1. The knife body 3 is connected to the inner beam 2 through a hinge point to form a swing structure, allowing the knife body 3 to swing within a certain angle range to adjust the contact angle between the air knife and the surface of the galvanized sheet. The front end of the knife body 3 is provided with a flat air flow ejection port for converting compressed air into a high-speed and uniform air flow sheet. The first rotation driving member 4 adopts a servo motor and is installed on one side of the outer beam 1. Its output shaft is connected to one end of the knife body 3 through a coupling, universal joint, etc. to precisely control the swing angle of the knife body 3, realizing fine adjustment of the angle between the air knife and the galvanized sheet, so as to achieve the effect of precisely blowing the air knife on the surface of the galvanized sheet. Since the first rotation driving member 4 is arranged on the outer beam 1 with a stable environment and working position and is connected to the inner beam 2 or the knife body 3 through a motion series connection mechanism for precise further adjustment, the tool part of this device can have higher adjustment accuracy and a more stable adjustment state compared with the prior art. In this embodiment, the arc-shaped rack portion 301 is arranged on one side of the rotating shaft of the knife body 3 and is driven to rotate by the gear portion 17 rotatably arranged on the inner beam 2. By introducing the cooperation of the rotating transmission shaft 5 with the gear portion 17 and the arc-shaped rack portion 301, precise control and stable transmission of the angle of the knife body 3 are realized. The misaligned setting of the rotating shaft and the driving position of the knife body 3 makes the position of the transmission connection point between the output end of the rotation driving device and the knife body 3 more stable, not easily broken or deformed, and can also drive the swing of the knife body 3 more labor-saving and smoothly.
[0047] Further, it further includes side baffle devices 6. The side baffle devices 6 are arranged oppositely in two, and are used to block both sides of the galvanized sheet. The side baffle device 6 includes a longitudinal baffle carriage 601, which is slidably arranged longitudinally on the outer beam 1. A cylinder 602 is arranged on the outer beam 1, and its output end is arranged on the longitudinal baffle carriage 601 to drive the longitudinal baffle carriage 601 to slide. A baffle member 603 follows the movement of the longitudinal baffle carriage 601. The baffle member 603 has a blocking portion 604 for blocking the galvanized sheet. A material guiding space 605 is formed between the two groups of baffle members 603.
[0048] In this embodiment, the device is further provided with side baffle devices 6. The side baffle devices 6 are composed of two oppositely arranged components. Each component includes a longitudinal baffle carriage 601, a cylinder 602 and a baffle member 603. The longitudinal baffle carriage 601 is slidably arranged longitudinally on the outer beam 1, which means that it can freely move along the direction perpendicular to the movement direction of the air knife under the guidance of the outer beam 1. This design enables the longitudinal baffle carriage 601 to adjust its position according to galvanized sheets of different widths to meet the processing requirements of various sheets. The cylinder 602 is arranged on the outer beam 1, and its output end is connected to the longitudinal baffle carriage 601. When the cylinder 602 acts, the output end pushes or pulls the longitudinal baffle carriage 601, thereby realizing precise adjustment of the position of the baffle member 603. The use of the cylinder 602 not only provides sufficient power but also ensures the smoothness and accuracy of the adjustment process, avoiding errors and inconveniences that may be brought by manual adjustment. The baffle member 603 is one of the core components of the side baffle device 6. It follows the movement of the longitudinal baffle carriage 601. The baffle member 603 has a blocking portion 604. When the baffle member 603 is in place, the blocking portion 604 can accurately abut against the side of the galvanized sheet, preventing the sheet from shifting or shaking during the adjustment of the air knife, and also making the air volume at the edge of the galvanized sheet equally uniform, ensuring the flatness of the sheet edge and the stability of the entire processing process.
[0049] Further, it further includes sliding stoppers 7. The sliding stoppers 7 are longitudinally slidably arranged on the outer beam 1, on one longitudinal side of the longitudinal baffle carriage 601, and the two sliding stoppers 7 are located between the two longitudinal baffle carriages 601. The sliding stoppers 7 are always in contact with the longitudinal baffle carriage 601.
[0050] In this embodiment, in addition to the driving member of the cylinder 602, sliding stoppers 7 are also provided. The sliding stoppers 7 are always in contact with the longitudinal baffle carriage 601. This continuous physical contact provides additional support and positioning for the sheet, enhancing the stability of the entire device and the sheet control ability. It can further improve the stability of the device and the accuracy of sheet processing. Especially when processing sheets with a large aspect ratio and a thin thickness, the sliding stoppers 7 can effectively assist the longitudinal baffle carriage 601 to ensure that the sheet always remains stable during the adjustment of the air knife angle, avoiding any unnecessary offset or deformation.
[0051] Specifically, when the sheet is placed on the device and ready for air knife angle adjustment, the two longitudinal baffle sliders 601 are first adjusted according to the width of the sheet to ensure proper clamping on both sides of the sheet. At this time, the sliding stopper 7 also adjusts its position accordingly to maintain contact with the longitudinal baffle slider 601. During the air knife angle adjustment process, as the longitudinal baffle slider 601 moves, the sliding stopper 7 also slides along with it, always clinging to the edge of the sheet, effectively preventing the possible lateral movement or warping of the sheet during the adjustment process, ensuring the flatness of the sheet and the accuracy of the air knife action area. By introducing the sliding stopper 7, the air knife angle adjustment device of this embodiment not only improves the control ability of the sheet, but also simplifies the operation process, reduces the need for manual intervention, and has a significant effect on improving product quality and production efficiency.
[0052] Furthermore, it further includes a second lead screw 8, the second lead screw 8 is rotatably arranged on the outer beam 1, on one side of the cylinder 602, and its length direction is parallel to the length direction of the cylinder 602, a second lead screw nut 9, the second lead screw nut 9 is arranged on the sliding stopper 7, the second lead screw 8 meshes with the second lead screw nut 9, and a third rotational driving member 10 is arranged on the outer beam 1, and the output end of the third rotational driving member 10 drives the second lead screw 8 to rotate.
[0053] In this embodiment, the device is added with a second lead screw 8, a second nut 9 and a third rotation driving member 10 on the original basis. The second lead screw 8 is rotatably arranged on the outer beam 1, and its length direction is parallel to the length direction of the cylinder 602. This layout ensures that the rotation of the second lead screw 8 can be directly converted into the linear movement of the sliding stopper 7, improving the transmission efficiency and accuracy. The second nut 9 is arranged on the sliding stopper 7 to form a lead screw-nut pair with the second lead screw 8. When the second lead screw 8 rotates under the drive of the third rotation driving member 10, the engaged second nut 9 will move along the axis direction of the second lead screw 8, thereby driving the sliding stopper 7 to perform precise longitudinal adjustment. The rotation driving member adopts a high-precision servo motor, which can drive the sliding stopper 7 to slide stably during the feeding process and can be stably locked after the sliding is in place. When the cylinder 602 is used alone to drive the sliding, it can provide continuous and stable sliding driving force and driving speed. However, during the feeding process of the galvanized sheet, there will be a certain offset, and the support effect provided by the cylinder 602 is weak, which easily causes the longitudinal sliding baffle to drive the baffle member 603 to continuously shake and deflect, ultimately affecting the effect of coating thickness determination. The combined feeding of the second nut 9 and the second lead screw 8 driven by the third rotation driving member 10 can provide a stronger feeding effect, but it is difficult to maintain its own stable state under the precise driving and feeding effect, and there will be certain fluctuations in the feeding speed and feeding amount. In this solution, the cylinder 602, the second lead screw 8 and the second nut 9 are used in synchronous cooperation, which can not only achieve stable and fast feeding in place, but also make the entire clamping and limiting process smoother, that is, it is not easy to damage the galvanized sheet and can also provide good limiting and fast clamping actions.
[0054] Further, it further includes a transverse baffle slide 11. The transverse baffle slide 11 is slidably arranged horizontally and longitudinally on the longitudinal baffle slide 601. A third nut 12 is arranged on the transverse baffle slide 11, and a third lead screw 13 is rotatably arranged on the longitudinal baffle slide 601 and is used to drive the third nut 12 to slide horizontally after rotation.
[0055] In this embodiment, the device is newly added with a transverse baffle carriage 11, a third lead nut 12 and a third lead screw 13, aiming to achieve precise control of the transverse position of the plate, thereby further enhancing the versatility and flexibility of the device, and ensuring that during the adjustment of the air knife angle, plates of different shapes and sizes can be stably supported and precisely positioned in all directions. The third lead nut 12 is fixedly installed on the transverse baffle carriage 11, forming a lead screw-nut pair with the third lead screw 13. The third lead screw 13 is rotatably arranged on the longitudinal baffle carriage 601, and its axial direction is consistent with the width direction of the plate. When it is necessary to adjust the transverse position of the transverse baffle carriage 11, only need to drive the third lead screw 13 to rotate through an external driving device such as a motor or a handwheel, and the rotation of the third lead screw 13 will be converted into the transverse movement of the transverse baffle carriage 11 through the engaged third lead nut 12. This lead screw-nut transmission mechanism not only ensures the smoothness and precision of the adjustment process, but also greatly simplifies the operation process and improves the work efficiency. By introducing the transverse baffle carriage 11, the third lead nut 12 and the third lead screw 13, the air knife angle adjustment device of this embodiment not only enhances the control ability of the plate position, but also broadens the applicable range, especially suitable for those high-precision application occasions that require multi-dimensional positioning and adjustment of the plate, improving the production quality and production efficiency of the product.
[0056] Furthermore, it further includes a lifting baffle carriage 14, the lifting baffle carriage 14 is arranged to slide up and down on the transverse baffle carriage 11, a fourth lead nut 15 is arranged on the lifting baffle carriage 14, and a fourth lead screw 16 is rotatably arranged on the transverse baffle carriage 11, and after rotation, it drives the fourth lead nut 15 to slide up and down.
[0057] In this embodiment, the lifting baffle carriage 14, the fourth lead nut 15 and the fourth lead screw 16 are added, aiming to achieve fine control of the height direction of the plate to meet the precise adjustment requirements of the three-dimensional spatial position of the baffle member 603 under complex processing conditions. The fourth lead nut 15 is fixedly installed on the lifting baffle carriage 14, forming a lead screw-nut pair with the fourth lead screw 16. The fourth lead screw 16 is rotatably arranged on the transverse baffle carriage 11, and its axial direction is consistent with the height direction of the plate. By driving the fourth lead screw 16 to rotate through an external driving device such as a servo motor or a manual knob, the lifting movement of the lifting baffle carriage 14 can be precisely controlled, thereby adjusting the position of the plate in the height direction. The effect of limiting the position of the galvanized plate is improved.
[0058] Furthermore, the lifting baffle slide 14 has a first card slot 1401 and a second card slot 1402 arranged vertically in sequence, the first card slot 1401 is a wedge-shaped slot, the second card slot 1402 is a vertical strip slot, the first card slot 1401 and the second card slot 1402 both have an entrance portion 1403, the entrance portion 1403 of the first card slot 1401 is located above the first card slot 1401, and the entrance portion 1403 of the second card slot 1402 is located on the side of the second card slot 1402, and the baffle member 603 has a first card portion 606 and a second card portion 607 arranged vertically in sequence, the first card portion 606 and the second card portion 607 are used to snap into the first card slot 1401 and the second card slot 1402, respectively.
[0059] In this embodiment, by introducing the first card slot 1401 and the second card slot 1402 of special shapes, and the first card portion 606 and the second card portion 607 matched therewith, it is intended to achieve a fast and stable installation of the baffle member 603, wherein the first card slot 1401 is a wedge-shaped slot, and its special shape is conducive to the guidance and locking of the baffle member 603 during installation, and the wedge-shaped structure can provide additional fastening force to ensure that the baffle member 603 will not loosen when subjected to pressure. The entrance portion 1403 of the first card slot 1401 is located at the top, which is convenient for the baffle member 603 to be inserted from top to bottom, simplifying the installation process. The second card slot 1402 is a vertical strip slot, and its entrance portion 1403 is located at the side, which complements the arrangement of the first card slot 1401, and together constitutes a double locking mechanism of the baffle member 603. The design of the strip slot allows the baffle member 603 to be fine-tuned within a certain range, so as to apply more precise pressure to the plate while maintaining sufficient stability. Through the combined design of the card slot and the card part, the air knife angle adjustment device of this embodiment not only simplifies the installation and disassembly process of the baffle member 603, but also ensures the stability and adaptability of the baffle member 603 under different processing conditions. It is particularly suitable for working environments that require frequent replacement or adjustment of the baffle member 603, such as small-batch production of multiple varieties, personalized customized processing, etc., and can significantly improve the flexibility and production efficiency of the equipment.
[0060] Furthermore, one end of the inner beam 2 has an arc-shaped scale groove 201 , which is concentrically arranged with the rotation axis of the knife body 3 , and the rotation axis of the knife body 3 has an indicating portion 302 , which points to the arc-shaped scale groove 201 .
[0061] In this embodiment, at one end of the inner beam 2, at a position concentric with the rotating shaft of the tool body 3, an arc-shaped scale groove 201 is provided. This scale groove can ensure a perfect match with the swinging trajectory of the tool body 3. Angle scales are evenly distributed on the scale groove, usually ranging from 0° to ±15°, and each scale represents a specific angle value, facilitating the operator to quickly identify the current angle of the tool body 3. The operator monitors the angle of the tool body 3 in real time by observing the cooperation between the indicating portion 302 and the arc-shaped scale groove 201, ensuring precise control of the coating thickness. Through the intuitive indicating system, the operation convenience and the controllability of the production process are improved, which is applicable to the industrial production environment with high-precision requirements for the coating thickness.
[0062] Furthermore, the first rotating driving member 4 and the rotating transmission shaft 5 are connected by a universal joint.
[0063] In this embodiment, a universal joint is adopted for the connection between the first rotating driving member 4 and the rotating transmission shaft 5. The universal joint can allow the two shafts to transmit torque at different angles. It can compensate for the misalignment of the axes caused by assembly errors, motion deviations or structural deformations, thereby avoiding the additional stress and vibration generated therefrom. This design ensures that the power of the first rotating driving member 4 can be smoothly and efficiently transmitted to the rotating transmission shaft 5. Even in the process of adjusting the angle of the air knife, there are slight angle changes, and the continuity and stability of the transmission can still be maintained.
[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.
Claims
1. An air knife angle adjustment device, characterized in that: include: An outer beam (1), wherein the length direction of the outer beam (1) is defined as a longitudinal direction, and a horizontal direction perpendicular to the length direction of the beam is defined as a transverse direction. An inner beam (2), wherein the inner beam (2) is laterally slidably arranged on the outer beam (1), a knife body (3), wherein the knife body (3) is swingably arranged on the inner beam (2), a first rotating driving member (4), the first rotating driving member (4) being arranged on the outer beam (1), and having an output end drivingly connected to the knife body (3) to drive the knife body (3) to swing; the knife body (3) being swingably arranged at one end of the inner beam (2), the knife body (3) having an arc-shaped rack portion (301); A rotating transmission shaft (5) is rotatably arranged on the inner beam (2) and has a gear portion (17); an output end of the first rotating drive member (4) is drivingly connected to the rotating transmission shaft (5); the gear portion (17) is meshed with the arc-shaped rack portion (301) to enable the rotating transmission shaft (5) to rotate and drive the knife body (3) to rotate.
2. The air knife angle adjustment device according to claim 1, characterized in that: It also includes a side stopper (6), wherein the side stopper (6) is two oppositely arranged side stoppers for blocking two sides of the galvanized sheet. The side stopper (6) includes: A longitudinal baffle slide (601), wherein the longitudinal baffle slide (601) is slidably arranged on the outer beam (1) in the longitudinal direction, A cylinder (602), wherein the cylinder (602) is arranged on the outer beam (1), and an output end is arranged on the longitudinal baffle slide (601), driving the longitudinal baffle slide (601) to slide, The baffle member (603) moves along with the longitudinal baffle slide (601), and the baffle member (603) has a blocking portion (604) for blocking the galvanized sheet, and a material guiding space (605) is formed between two groups of the baffle members (603).
3. The air knife angle adjustment device according to claim 2, characterized in that: Also includes: A sliding stopper (7), wherein the sliding stopper (7) is longitudinally slidably arranged on the outer beam (1) and is located on one side of the longitudinal direction of the longitudinal baffle slide (601), and two sliding stops (7) are located between the two longitudinal baffle slides (601), and the sliding stopper (7) is always in contact with the longitudinal baffle slide (601).
4. The air knife angle adjustment device according to claim 3, characterized in that: Also includes: a second screw rod (8), the second screw rod (8) being rotatably disposed on the outer beam (1), being located on one side of the cylinder (602), and having a length direction parallel to a length direction of the cylinder (602), a second nut (9), the second nut (9) being arranged on the sliding stopper (7), the second screw rod (8) being meshed with the second nut (9), A third rotating driving member (10), wherein the third rotating driving member (10) is arranged on the outer beam (1), and an output end of the third rotating driving member (10) drives the second screw rod (8) to rotate.
5. The air knife angle adjustment device according to claim 2, characterized in that: Also includes: a transverse baffle slide (11), the transverse baffle slide (11) being arranged on the longitudinal baffle slide (601) in a transverse and longitudinal sliding manner, a third nut (12), the third nut (12) being arranged on the transverse baffle slide (11), A third screw rod (13), the third screw rod (13) is rotatably disposed on the longitudinal baffle slide (601), and is used to drive the third screw nut (12) to slide horizontally after rotation.
6. The air knife angle adjustment device according to claim 5, characterized in that: Also includes: A lifting baffle slide (14), wherein the lifting baffle slide (14) is lifted and slidably arranged on the transverse baffle slide (11), a fourth nut (15), the fourth nut (15) being arranged on the lifting baffle slide (14), A fourth screw rod (16), the fourth screw rod (16) is rotatably disposed on the transverse baffle slide (11), and drives the fourth screw nut (15) to rise and fall and slide after rotation.
7. The air knife angle adjustment device according to claim 6, characterized in that: The lifting baffle slide (14) comprises a first card slot (1401) and a second card slot (1402) which are arranged in sequence vertically, the first card slot (1401) is a wedge-shaped slot, the second card slot (1402) is a vertical strip-shaped slot, the first card slot (1401) and the second card slot (1402) both have an entrance portion (1403), the entrance portion (1403) of the first card slot (1401) is located above the first card slot (1401), and the entrance portion (1403) of the second card slot (1402) is located at the side of the second card slot (1402), the baffle member (603) comprises a first card portion (606) and a second card portion (607) which are arranged in sequence vertically, the first card portion (606) and the second card portion (607) are used to be inserted into the first card slot (1401) and the second card slot (1402), respectively.
8. The air knife angle adjustment device according to claim 1, characterized in that: One end of the inner beam (2) has an arc-shaped scale groove (201), the arc-shaped scale groove (201) is arranged concentrically with the rotation axis of the knife body (3), the rotation axis of the knife body (3) has an indicating portion (302), and the indicating portion (302) points to the arc-shaped scale groove (201).
9. The air knife angle adjustment device according to claim 1, characterized in that: The first rotating driving member (4) and the rotating transmission shaft (5) are connected via a universal joint.