Coating spraying device
By designing the hinge mechanism and baffle structure of the paint spraying device and adjusting the nozzle angle, the problem of uneven spraying at the end of the cylindrical casting was solved, and the uniformity of the casting wall thickness and the improvement of the quality were achieved.
Patent Information
- Application Number
- CN202422911468.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-11-28
AI Technical Summary
The end of the cylindrical casting is restricted by the baffle, which limits the spraying angle, resulting in uneven spraying and uneven wall thickness, thus affecting the quality of the casting.
A paint spraying device was designed. By cooperating with a hinge mechanism and a baffle, the angle of the paint nozzle can be adjusted to expand the spraying range and ensure that the end of the casting is fully sprayed.
Uniform spraying was achieved at the ends of the casting, improving the uniformity and quality of the casting wall thickness and preventing the formation of supercooled graphite.
Smart Images
Figure CN223818949U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of casting processing technology, and in particular to a paint spraying device. Background Technology
[0002] Currently, cylindrical castings produced by centrifugal casting have advantages such as high output efficiency, low scrap rate, and compact casting structure. During the casting process, the outer wall of the casting needs to be coated. However, due to the baffle plate at the end of the centrifugal casting blank for fixing, the spraying angle of the coating nozzle is limited, resulting in a smaller coating amount at the end of the cylindrical casting and uneven wall thickness. During the cooling process of the cylindrical casting, the thinner end cools faster and has a large degree of supercooling, which easily forms supercooled graphite, causing a decline in the quality of the cylindrical casting.
[0003] In summary, developing a spraying device with an adjustable spraying angle for uniformly spraying cylindrical castings is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0004] The purpose of this invention is to provide a paint spraying device that solves the technical problem that the ends of cylindrical castings cannot be fully sprayed due to the presence of baffles at the ends.
[0005] To achieve the above objectives, this utility model provides a paint spraying device, comprising:
[0006] Paint nozzle, which is rotatably connected to one end of the paint spray bar;
[0007] The hinge mechanism slides on the paint spray bar, and its two ends are rotatably connected to the paint nozzle and the baffle, respectively. The baffle is rotatably connected to the paint spray bar.
[0008] The fixing block abuts against the end of the baffle away from the paint spray bar.
[0009] Preferably, the hinge mechanism includes a sliding part and a swinging part, the ends of the sliding part and the swinging part are rotatably connected, the extension direction of the sliding part is parallel to the length direction of the paint spray bar, the sliding part is rotatably connected to the paint nozzle, the swinging part is rotatably connected to the baffle, and the swinging part rotates between the paint spray bar and the baffle.
[0010] Preferably, the baffle is also provided with an elastic element, and a positioning rod is inserted inside the elastic element. The positioning rod is rotatably connected to the baffle.
[0011] Preferably, a fixing plate is provided at the end of the baffle away from the paint spray head. The fixing plate is specifically a right-angle plate. One side of the fixing plate is fixed to the paint spray bar, and the other side abuts against the elastic element. The positioning rod passes through the fixing plate.
[0012] Preferably, the fixing block is cylindrical, and the axis of the fixing block is parallel to the rotation axis of the baffle.
[0013] Preferably, the portion of the positioning rod that passes through the fixing plate is provided with a fastener.
[0014] Preferably, the fixing block can move along the length of the paint spray bar, changing the contact position between the fixing block and the baffle, and adjusting the rotatable angle of the paint spray head.
[0015] Preferably, the paint spray bar is provided with a limiting member, and the limiting member clamps the sliding part with the paint spray bar, so that the sliding part slides only along the length direction of the paint spray bar.
[0016] Preferably, when the baffle is not in contact with the fixing block, the baffle is perpendicular to the paint spray bar.
[0017] Compared to the aforementioned background technology, the present invention provides a paint spraying device comprising: a paint nozzle, one side of which is rotatably connected to the end of a paint spray rod, and the other side connected to a hinge mechanism. The paint nozzle can also rotate relative to the hinge mechanism, and the hinge mechanism can also slide relative to the paint spray rod along the extension direction of the paint spray rod. In addition, a baffle is fixedly connected to the paint spray rod, and the baffle can rotate relative to the paint spray rod. The other end of the hinge mechanism is rotatably connected to a fixed block. The rotation axis of the baffle and the rotation axis of the hinge mechanism on the baffle are distributed sequentially in a direction away from the paint spray rod. A fixed block is provided between the paint nozzle and the baffle. The distance between the fixed block and the paint spray rod is less than the length of the baffle, so that after the moving rod moves a certain distance, the baffle can abut against the fixed block.
[0018] When the paint sprayer is in operation, the paint spray bar slides horizontally, causing the paint sprayer to evenly spray the workpiece. When the paint spray bar has moved a certain distance, the baffle contacts the fixed block. The fixed block blocks the movement of the baffle on the side away from the paint spray bar. The end of the baffle connected to the paint spray bar continues to slide with the paint spray bar. The baffle rotates, and its relative position with the paint spray bar changes from perpendicular to inclined. Since the hinge mechanism is connected to the middle section of the baffle, the displacement of the hinge mechanism along the direction of the paint spray bar is less than the displacement of the paint spray bar itself. The hinge mechanism pulls the paint sprayer to rotate around the end of the paint spray bar, adjusting the angle of paint spraying, thus expanding the spraying range of the paint and covering the previously insufficiently sprayed areas to ensure that the spraying amount at the end of the casting meets the standard. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0020] Figure 1 This is a structural diagram of the paint spraying device provided in an embodiment of the present utility model;
[0021] in:
[0022] 1-Paint spray head; 2-Hinge mechanism; 21-Sliding part; 22-Swinging part; 3-Fixing block; 4-Baffle; 5-Elastic element; 6-Paint spray bar; 7-Positioning rod; 8-Fixing plate; 9-Limiting element; 10-Fastener. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0025] This utility model provides a paint spraying device, which allows the angle of the paint spray head 1 to be adjusted when spraying the end of the casting to ensure that the amount of paint sprayed on the surface of the casting meets the standard. Please refer to the appendix of the instruction manual. Figure 1The paint spraying device includes a paint nozzle 1, which sprays paint onto the casting. The opposite side of the paint nozzle 1 is connected to a paint spray bar 6, and the paint nozzle 1 can rotate relative to the paint spray bar 6. The other end of this side is also rotatably connected to one end of a hinge mechanism 2. During the spraying process, the feed direction of the paint spray bar 6 is parallel to its length, and the hinge mechanism 2, located above the paint spray bar 6, moves synchronously. A baffle 4 is rotatably mounted on the paint spray bar 6, and the other end of the hinge mechanism 2 is rotatably connected to the baffle 4. When the baffle 4 rotates, it drives the hinge mechanism. Mechanism 2 slides as a whole. In addition, a fixing block 3 is provided above the paint spray bar 6. The distance between the fixing block 3 and the paint spray bar 6 is less than the length of the baffle 4. That is, when the baffle 4 is set perpendicular to the paint spray bar 6, after the paint spray bar 6 drives the baffle 4 to move a certain distance, the end of the baffle 4 away from the paint spray bar 6 will abut against the fixing block 3. The end of the baffle 4 that abuts against the fixing block 3 is blocked and stops moving. Since the end of the baffle 4 away from the fixing block 3 can be rotatably connected to the paint spray bar 6, the baffle 4 at this end continues to move with the paint spray bar 6. At this time, the baffle 4 rotates clockwise relative to the paint spray bar 6. Before the baffle 4 abuts against the fixed block 3, the baffle 4 is set vertically relative to the paint spray rod 6. The rotation axis of the hinge mechanism 2 and the rotation axis of the baffle 4 have the same displacement distance. When the baffle 4 abuts against the fixed block 3, the upper end of the baffle 4 stops moving, while the lower end continues to move with the paint spray rod 6. The baffle 4 is tilted relative to the paint spray rod 6, and the displacement of the rotation axis of the hinge mechanism 2 is less than the displacement of the baffle 4. The displacement of the end of the paint nozzle 1 connected to the hinge mechanism 2 is less than the displacement of the end connected to the paint spray rod 6. The hinge mechanism 2 pulls the upper end of the paint nozzle 1 closer to the baffle 4, and the paint nozzle 1 rotates clockwise, changing the spraying range of the paint nozzle 1. This allows for sufficient spraying of the casting end with the baffle plate, ensuring that the wall thickness of the cast part after molding meets the standard.
[0026] Please continue to refer to the instruction manual appendix. Figure 1The hinge mechanism 2 includes a sliding part 21 and a swinging part 22. The swinging part 22 is rotatably connected to the sliding part 21 and is set at a certain angle to the sliding part 21. The other end of the swinging part 22 is connected to the push plate, and the other end of the sliding part 21 is connected to the paint spray head 1. The sliding part 21 is located above the paint spray bar 6, and the extension direction of the sliding part 21 is parallel to the paint spray bar 6. The connection point between the swinging part 22 and the baffle 4 is located in the middle section of the baffle 4. The paint spray bar 6 drives the baffle 4 to move, and the swinging part 22 connected to the baffle 4 moves together with the sliding part 21. When the baffle 4 contacts the fixed block 3, the baffle 4 moves smoothly. As the clock hands rotate, the baffle 4 tilts away from the paint nozzle 1. The connection point between the swing part 22 and the baffle 4 moves backward relative to the rotation axis of the baffle 4. Both the swing part 22 and the sliding part 21 are rigid rods. The swing part 22 pulls the sliding part 21 connected to it, causing the sliding part 21 to move backward relative to the paint spray rod 6. The two ends of the side wall of the paint nozzle 1 are respectively connected to the sliding part 21 and the paint spray rod 6. The sliding part 21 moves backward relative to the paint spray rod 6. The upper end of the paint nozzle 1 connected to the sliding part 21 moves backward, while the lower end connected to the paint spray rod 6 remains relatively stationary. The paint nozzle 1 rotates clockwise as a whole.
[0027] Furthermore, the baffle 4 is also equipped with an elastic element 5, which is specifically a compression spring. The compression spring has a hollow structure, and a positioning rod 7 is inserted inside the compression spring. The positioning rod 7 is a rigid rod. During the compression process of the elastic element 5, the compression direction is only along the direction set by the positioning rod 7, so as to prevent the elastic element 5 from bending during the compression process. The positioning rod 7 is rotatably connected to the baffle 4. At this time, the connection points of the baffle 4, the swing part 22, and the positioning rod 7 with the baffle 4 are distributed sequentially in the direction away from the paint spraying rod 6. A fixing plate is fixedly connected to the paint spraying rod 6. 8. The fixing plate 8 is specifically a right-angle plate. One side wall of the fixing plate 8 is attached to the paint spray bar 6 to determine the position of the fixing plate 8 on the paint spray bar 6. The other side plate is perpendicular to the paint spray bar 6. The compression spring abuts against the vertical side wall of the fixing plate 8. The positioning rod 7 inside the compression spring also passes through the vertical side wall of the fixing plate 8. During the movement of the paint spray bar 6, when the baffle 4 is not in contact with the fixing block 3, the hinge mechanism 2 located on both sides of the baffle 4 and the positioning rod 7 together maintain the vertical state of the baffle 4. The hinge mechanism 2 and the paint spray bar 6 remain relatively stationary, ensuring that the paint spray bar 6 remains stationary. The nozzle 1 provides stable spraying to the non-end portion of the casting. When the baffle 4 contacts the fixing block 3, the baffle 4 rotates towards the fixing plate 8. The positioning rod 7 connected to the baffle 4 moves towards the fixing plate 8, increasing the portion of the positioning rod 7 passing through the fixing plate 8 and shortening the portion between the baffle 4 and the fixing plate 8. Furthermore, due to the compression spring abutting against the side wall of the fixing plate 8, the compression spring is compressed as the baffle 4 rotates. After the coating rotation completes and the casting end is coated, during the resetting process of the coating spray bar 6, the coating spray bar 6 moves away from the end of the coating nozzle 1. The baffle 4 gradually changes from an inclined state back to a vertical state. At the same time, the compressed elastic element 5 applies elastic force to the baffle 4 to assist in the reset of the paint spray bar 6. In addition, the elastic element 5 also prevents the baffle 4 from being unable to return to a vertical state after separating from the fixing block 3 due to the large friction between the baffle 4 and the paint spray bar 6. This allows the paint nozzle 1 to return to the normal spraying angle and avoids affecting the subsequent spraying operation of the casting. The positioning rod 7 is provided with a fastener 10 at one end that passes through the fixing plate 8 to prevent the positioning rod 7 from falling off the fixing plate 8 during the reset process of the paint spray bar 6.
[0028] When the fixed block 3 contacts the baffle 4 and causes the baffle 4 to rotate, the swing part 22 pulls the sliding part 21. Since there is an angle between the sliding part 21 and the swing part 22, and the sliding part 21 can slide relative to the paint spray rod 6 and is not fixed to the paint spray rod 6, the sliding part 21 will be lifted while the swing part 22 pulls the sliding part 21 to slide, so that the displacement of one end of the sliding rod connected to the paint nozzle 1 along the length direction of the paint spray rod 6 is reduced, and the rotation angle of the paint nozzle 1 is reduced, so it is not possible to fully spray the end of the casting. Therefore, a limiting member 9 is also provided on the paint spray rod 6, and the sliding part 21 passes through the limiting member 9. That is to say, the sliding part 21 is clamped by the limiting member 9 and the paint spray rod 6. The upper end of the sliding part 21 cannot rotate due to the obstruction of the limiting member 9. The swing part 22 can only pull the sliding part 21 to move along the length direction of the paint spray rod 6 to ensure that the paint nozzle 1 has a sufficient rotation angle.
[0029] Furthermore, the setting of the fixing block 3 can be adjusted according to process requirements. The adjustment direction is parallel to the length direction of the paint spray bar 6. If it is necessary to increase the rotation angle of the paint nozzle 1 while keeping the feed displacement of the paint spray bar 6 the same, the fixing block 3 is moved away from the paint nozzle 1. After the baffle 4 and the fixing block 3, the distance that the paint spray bar 6 can continue to move increases, and the distance that the swing part 22 pulls the sliding part 21 increases accordingly, so that the rotation of the paint nozzle 1 becomes larger. Similarly, if it is necessary to reduce the rotation angle of the paint nozzle 1, the fixing block 3 is moved closer to the end of the paint nozzle 1, reducing the distance that the swing part 22 pulls the sliding part 21, thereby reducing the rotation angle of the paint nozzle 1.
[0030] The fixing block 3 is specifically a cylindrical plate, and the axis of the fixing block 3 is parallel to the rotation axis of the baffle 4. That is to say, the side of the fixing block 3 is in contact with the baffle 4. The contact surface between the fixing block 3 and the baffle 4 is set as an arc surface, so that the contact process between the baffle 4 and the fixing block 3 is more gentle and avoids collision damage between the fixing block 3 and the baffle 4. In addition, the baffle 4 can fit against the arc-shaped side wall of the fixing block 3 and slide relative to the arc-shaped side wall, so that the rotation process of the baffle 4 is more smooth and stable.
[0031] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.
[0032] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.
Claims
1. A paint spraying device, characterized in that, include: Paint nozzle (1), which is rotatably connected to one end of paint spray bar (6); Hing mechanism (2), the hinge mechanism (2) slides on the paint spray bar (6), the two ends of the hinge mechanism (2) are rotatably connected to the paint nozzle (1) and the baffle (4) respectively, and the baffle (4) is rotatably connected to the paint spray bar (6); The fixing block (3) abuts against the end of the baffle (4) away from the paint spray bar (6).
2. The paint spraying device according to claim 1, characterized in that, The hinge mechanism (2) includes a sliding part (21) and a swinging part (22). The ends of the sliding part (21) and the swinging part (22) are rotatably connected. The extension direction of the sliding part (21) is parallel to the length direction of the paint spray rod (6). The sliding part (21) is rotatably connected to the paint nozzle (1). The swinging part (22) is rotatably connected to the baffle (4). The swinging part (22) rotates between the paint spray rod (6) and the baffle (4).
3. The paint spraying device according to claim 2, characterized in that, The baffle (4) is also provided with an elastic element (5), and a positioning rod (7) is inserted inside the elastic element (5). The positioning rod (7) is rotatably connected to the baffle (4).
4. The paint spraying device according to claim 3, characterized in that, The baffle (4) is provided with a fixing plate (8) at one end away from the paint spray head (1). The fixing plate (8) is specifically a right-angle plate. One side plate of the fixing plate (8) is attached to the paint spray rod (6) and the other side plate is in contact with the elastic member (5). The positioning rod (7) passes through the fixing plate (8).
5. The paint spraying device according to claim 4, characterized in that, The fixing block (3) is specifically cylindrical, and the axis of the fixing block (3) is parallel to the rotation axis of the baffle (4).
6. The paint spraying device according to claim 4, characterized in that, The portion of the positioning rod (7) that passes through the fixing plate (8) is provided with a fastener (10).
7. The paint spraying apparatus according to claim 6, characterized in that, The rotation axes of the baffle (4), the swing part (22) and the positioning rod (7) are distributed sequentially in a direction away from the paint spraying rod (6).
8. The paint spraying apparatus according to claim 7, characterized in that, The fixing block (3) can move along the length of the paint spray bar (6), changing the contact position between the fixing block (3) and the baffle (4), and adjusting the rotatable angle of the paint spray head (1).
9. The paint spraying apparatus according to claim 8, characterized in that, The paint spray bar (6) is provided with a limiting member (9), which clamps the sliding part (21) with the paint spray bar (6) so that the sliding part (21) slides only along the length direction of the paint spray bar (6).
10. The paint spraying apparatus according to any one of claims 1-9, characterized in that, When the baffle (4) is not in contact with the fixing block (3), the baffle (4) is perpendicular to the paint spray bar (6).