Spraying device for smoothing the surface of a sealing ring

Abstract

The utility model relates to a spraying device that is used for smooth surface treatment of sealing ring, it includes rotary seat, the frame ring of setting in the rotary seat top, the connecting frame of connecting between rotary seat and frame ring, the power unit of drive rotary seat rotates around vertical center line, sprays the part. The utility model one side through rotary seat, frame ring and connecting frame cooperation will hang sealing ring, make sealing ring in natural state completely unfold and form positioning support in the circumference, realize accurate positioning while, promote sealing ring rotation stability, the other side is based on sealing ring suspension and natural unfolding, through rotary seat autorotation and spray head cooperation to spray head spray direction fixed and close sealing ring inner wall down implementation spraying in sealing ring rotation, effectively promote the control precision of to spray flow, ensure sealing ring inner wall coating distribution even, simple, convenient operation.

Description

Technical Field

[0001] This utility model belongs to the field of sealing technology, specifically relating to a spraying device for smoothing the surface of a sealing ring. Background Technology

[0002] Currently, most sealing rings on the market are made of rubber. Rubber is a polymer material with unique elasticity and flexibility. Its molecular chain structure gives rubber excellent resilience, which can quickly return to its original shape after stretching or compression. At the same time, rubber is also extremely flexible.

[0003] For washing machine sealing rings, due to their large size and softness, the key issues in surface finishing or treatment are how to clamp, spray, and heat-dry them.

[0004] However, when using conventional methods for clamping and spraying, the following problems are likely to occur:

[0005] 1. When clamping and positioning the sealing ring, it is easy to cause the sealing ring to fail to maintain its natural unfolded state due to the difficulty in controlling the clamping force, making it difficult to meet the positioning requirements. In addition, the sealing ring is prone to deformation, which can cause dead corners to form on the inner wall, making it impossible to guarantee full coating.

[0006] 2. During spraying, in order to avoid uneven spraying caused by the centrifugal force due to the rotation of the sealing ring, the spray gun is usually rotated to spray the material on the inner wall of the sealing ring in the circumferential direction. However, this is not only cumbersome to operate and consumes a lot of driving energy, but also makes it difficult to accurately control the uniformity of the material distribution on the inner wall of the sealing ring when the spray gun is rotating. Summary of the Invention

[0007] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an improved spraying device for smoothing the surface of a sealing ring.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0009] A spraying device for smoothing the surface of a sealing ring includes a rotating base, a frame ring disposed above the rotating base, a connecting frame connecting the rotating base and the frame ring, a power unit for driving the rotating base to rotate around a vertical center line, and a spraying component. The connecting frame forms a positioning area in the circumferential direction that matches the sealing ring. The sealing ring is inserted into the inner ring of the frame ring from top to bottom, and is suspended from the top of the frame ring and naturally unfolded and positioned in the positioning area from the bottom. The spraying component includes a spraying head that extends from top to bottom into the inner ring of the sealing ring and is disposed close to the inner wall of the sealing ring. The spraying direction formed by the spraying head is fixed, and as the rotating base drives the sealing ring to rotate, the spraying area formed by the spraying head covers the inner wall of the sealing ring.

[0010] According to a specific embodiment and preferred aspect of this utility model, a spray head has multiple spray ports distributed vertically at intervals, wherein the spray direction of each spray port is the same and parallel to the radial direction of the sealing ring. Here, the cooperation of multiple spray ports facilitates precise control and stable material spraying.

[0011] Preferably, the sprayed areas formed by two adjacent spraying ports on the inner wall of the sealing ring coincide at their boundaries; and / or, during spraying, the upper and lower boundaries of the sprayed areas formed by the uppermost and lowermost spraying ports on the inner wall of the sealing ring are flush with the top and bottom edges of the inner wall of the sealing ring. This ensures uniform distribution of the sprayed material in all areas of the inner wall of the sealing ring and avoids repeated spraying.

[0012] Specifically, the distance between each spray port and the inner wall of the sealing ring is d, and the inner radius of the sealing ring is r, where 0.25r ≤ d ≤ 0.45r. Here, by controlling the spray spacing of the spray ports, uniform spraying is achieved while reducing the probability of paint splashing.

[0013] According to another specific embodiment and preferred aspect of this utility model, the center lines of the rotating seat, the frame ring, and the sealing ring are arranged to coincide.

[0014] According to another specific embodiment and preferred aspect of this utility model, the sealing ring includes an inverted portion hanging on the frame ring, a fitting portion that conforms to the inner ring of the frame ring from the outer periphery, and a suspended portion suspended between the frame ring and the rotating seat. Based on the contact between the inverted portion and the fitting portion, the sealing ring is stably hooked onto the frame ring from the end of the ring opening, which not only facilitates the full unfolding of other parts of the sealing ring but also increases the stability of the inverted hanging. Simultaneously, the sealing ring can better conform to the inner ring of the frame ring, preventing it from falling off due to an excessively large frame ring or being squeezed and twisted due to an excessively small frame ring.

[0015] Preferably, the connecting frame includes multiple support rods spaced annularly around the rotation center line of the rotating seat, with the suspended portion abutting against the multiple support rods from the outer wall. In some specific embodiments, there are three support rods arranged in an equilateral triangle. That is, based on the stable support formed by the equilateral triangle, the frame ring maintains stable top support, while reducing the number of support rods, optimizing the structure, and increasing the exposed area for ease of operation.

[0016] Preferably, each support rod includes a screw and a nut, wherein the lower end of the screw extends downward through the rotating seat, and the upper end is fixedly connected to the support ring. The nut cooperates with the screw to adjust the distance between the support ring and the rotating seat. Here, the support height of the support ring is adjusted by the relative cooperation of the nut and the screw to meet the positioning requirements of sealing rings of different specifications, thereby increasing the practicality of positioning and matching.

[0017] According to another specific embodiment and preferred aspect of this utility model, the rotating base is provided with a through hole penetrating itself; there are multiple sets of through holes, each set being arranged in a circular array with the rotation center line of the rotating base as the reference, and the inner diameter of each set of through holes is equal. Here, the weight of the rotating base can be reduced, material usage can be reduced, costs can be saved, and rotation can be made easier; the mass distribution of the rotating base is uniform, improving the overall rotational stability of the rotating base and preventing the center of gravity from shifting.

[0018] In addition, the spraying component also includes a lifting drive that drives the spray head to move up and down to insert or disengage from the inner ring of the sealing ring.

[0019] Due to the implementation of the above technical solution, this utility model has the following advantages compared with the prior art:

[0020] Existing technologies for clamping and positioning sealing rings often result in difficulty in controlling the clamping force, causing the sealing ring to fail to maintain its natural unfolded state and thus failing to meet positioning requirements. Furthermore, the sealing ring is prone to deformation, leading to dead corners on the inner wall and making it impossible to ensure comprehensive spraying. In addition, during spraying, to avoid uneven spraying caused by centrifugal force due to the rotation of the sealing ring, the spray gun is usually rotated to spray material onto the inner wall of the sealing ring in a circumferential direction. However, this is not only cumbersome to operate and consumes a lot of driving energy, but also makes it difficult to accurately control the uniformity of material distribution on the inner wall of the sealing ring while the spray gun is rotating. This application presents a comprehensive design for the spraying device used for smoothing the surface of a sealing ring, cleverly addressing the shortcomings and defects of existing technologies. With this spraying device, the sealing ring is inserted into the inner ring of the frame and suspended in a naturally unfolded state on the frame. A positioning area matching the sealing ring is formed by a connecting frame to provide circumferential support and positioning. Then, a power unit drives the rotating seat to rotate, causing the sealing ring to rotate. Finally, the spraying head extends from top to bottom into the inner ring of the sealing ring and approaches its inner wall. The spraying direction formed by the spraying head is fixed. As the rotating seat drives the sealing ring to rotate, the spraying area formed by the spraying head covers the inner wall of the sealing ring. Therefore, compared with the prior art, this utility model, on the one hand, suspends the sealing ring by cooperating with the rotating seat, the frame ring, and the connecting frame, so that the sealing ring is fully unfolded in its natural state and forms a circumferential positioning support, achieving precise positioning while improving the rotational stability of the sealing ring; on the other hand, based on the suspension and natural unfolding of the sealing ring, the rotation of the rotating seat and the cooperation of the spray head ensure that the spraying direction of the spray head is fixed and close to the inner wall of the sealing ring during the rotation of the sealing ring, effectively improving the control accuracy of the spray flow rate, ensuring uniform coating distribution on the inner wall of the sealing ring, and making the operation simple and convenient. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the spraying apparatus for smoothing the surface of the sealing ring in this embodiment;

[0022] Figure 2This is a front view of the spraying apparatus for smoothing the surface of the sealing ring in this embodiment;

[0023] Figure 3 for Figure 2 A partial sectional view (including the sealing ring);

[0024] Wherein: 1. Rotary seat; k. Through hole; 2. Frame ring; 3. Connecting frame; 30. Frame rod; 300. Screw; 301. Nut; q. Positioning area; 4. Power unit; 5. Spraying component; 50. Truss; 51. Spraying head; 510. Spraying port; 52. Lifting drive;

[0025] Q, sealing ring; Q1, inverted part; Q2, fitting part; Q3, suspended part. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of a second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "above," "below," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0032] See Figures 1 to 3 As shown, the spraying device for smoothing the surface of the sealing ring in this embodiment includes a rotating seat 1, a frame ring 2, a connecting frame 3, a power unit 4, and a spraying component 5.

[0033] Specifically, the rotating seat 1 is a horizontally arranged circular disc, and the power unit 4 is a conventional motor connected to the bottom of the rotating seat 1 from the output shaft and drives the rotating seat 1 to rotate around the vertical center line.

[0034] The rotating base 1 has multiple through holes k that penetrate through itself. The multiple through holes k are divided into multiple groups and are staggered relative to each other. Each group is arranged in a ring array with the center of the rotating base 1 as the reference. Moreover, the inner diameter of each group of through holes k is equal, and there is a difference in the inner diameter of two adjacent groups of through holes k.

[0035] In this embodiment, the rotating base 1 has two sets of through holes k, each set consisting of three identical circular through holes k. The inner diameter of the through hole k closer to the axis is larger than the inner diameter of the through hole k farther from the axis. This ensures a uniform mass distribution of the rotating base, improves the overall rotational stability of the rotating base, and prevents the center of gravity from shifting.

[0036] In this example, the ring 2 is circular and horizontally positioned above the rotating seat 1. The connecting frame 3 is connected between the rotating seat 1 and the ring 2. The connecting frame 3 forms a positioning area q in the circumferential direction that matches the sealing ring Q. The sealing ring Q is inserted into the inner ring of the ring 2 from top to bottom, and the sealing ring Q is suspended from the top of the ring 2 and naturally unfolded and positioned in the positioning area q.

[0037] In some specific embodiments, when positioning the sealing ring Q, the center lines of the rotating seat 1, the frame ring 2, and the sealing ring Q are aligned. The sealing ring Q includes an inverted portion Q1 hanging on the frame ring 2, a fitting portion Q2 that adheres to the inner ring of the frame ring 2 from the outer periphery, and a suspended portion Q3 suspended between the frame ring 2 and the rotating seat 1. Based on the contact between the inverted portion and the fitting portion, the sealing ring is stably hooked onto the frame ring from the end of the ring opening, which not only facilitates the full unfolding of other parts of the sealing ring but also increases the stability of the inverted hanging; at the same time, the sealing ring can better fit the inner ring of the frame ring, preventing it from falling off due to an excessively large frame ring or being squeezed and twisted due to an excessively small frame ring.

[0038] The connecting frame 3 includes multiple support rods 30 arranged in a ring around the rotation center line of the rotating seat 1, with the suspended portion Q3 abutting against the multiple support rods 30 from the outer wall. In some specific embodiments, there are three support rods 30 arranged in an equilateral triangle. That is, based on the stable support formed by the equilateral triangle, the frame ring is kept in a stable supporting position, while reducing the number of support rods, optimizing the structure, and increasing the exposed area for ease of operation.

[0039] For ease of implementation, each support rod 30 includes a screw 300 and a nut 301. The lower end of the screw 300 extends downward through the rotating seat 1, and the upper end is fixedly connected to the support ring 2. The screw 300 and the nut 301 work together to adjust the distance between the support ring 2 and the rotating seat 1. Here, the support height of the support ring is adjusted by the relative cooperation of the nut and the screw to meet the positioning requirements of sealing rings of different specifications, increasing the practicality of positioning and matching.

[0040] In this example, the spraying component 5 includes a truss 50, a spraying head 51 extending from top to bottom into the inner ring of the sealing ring Q and disposed near the inner wall of the sealing ring Q, and a lifting driver 52 that drives the spraying head 51 to move up and down to insert or detach from the inner ring of the sealing ring Q. The spraying direction formed by the spraying head 51 is fixed, and as the rotating seat 1 drives the sealing ring to rotate, the spraying area formed by the spraying head 51 covers the inner wall of the sealing ring Q.

[0041] In some specific embodiments, the spray head 51 has multiple spray ports 510 spaced vertically apart, wherein the spray direction of each spray port 510 is the same and parallel to the radial direction of the sealing ring Q. Here, the cooperation of multiple spray ports facilitates precise control and stable spraying of materials.

[0042] The sprayed areas formed by two adjacent spraying ports 510 on the inner wall of the sealing ring Q coincide at their boundaries. During spraying, the upper and lower boundaries of the sprayed areas formed by the uppermost and lowermost spraying ports 510 on the inner wall of the sealing ring are aligned with the top and bottom edges of the inner wall of the sealing ring. This ensures that the sprayed material is evenly distributed in all areas of the inner wall of the sealing ring, avoiding repeated spraying.

[0043] Furthermore, the distance between each spraying port 510 and the inner wall of the sealing ring Q is d, and the inner radius of the sealing ring Q is r, where 0.25r ≤ d ≤ 0.45r. In this embodiment, d = 0.3r is preferred. Here, by controlling the spraying distance between the spraying ports, uniform spraying is achieved while reducing the probability of paint splashing.

[0044] In summary, after adopting this spraying device, the sealing ring is inserted into the inner ring of the frame ring and suspended on the frame ring in a naturally unfolded state. A positioning area matching the sealing ring is formed by the connecting frame to provide circumferential support and positioning for the sealing ring. Then, the power unit drives the rotating seat to rotate, thereby rotating the sealing ring. Finally, the spraying head is inserted into the inner ring of the sealing ring from top to bottom and close to the inner wall of the sealing ring. The spraying direction formed by the spraying head is fixed. As the rotating seat drives the sealing ring to rotate, the spraying area formed by the spraying head covers the inner wall of the sealing ring. Therefore, compared with the prior art, this utility model, on the one hand, suspends the sealing ring by cooperating with the rotating seat, the frame ring, and the connecting frame, allowing the sealing ring to fully unfold in its natural state and form a circumferential positioning support, achieving precise positioning while improving the rotational stability of the sealing ring; on the other hand, based on the suspension and natural unfolding of the sealing ring, the rotation of the rotating seat and the cooperation of the spray head ensure that the spraying direction of the spray head is fixed and close to the inner wall of the sealing ring during the rotation of the sealing ring, effectively improving the control accuracy of the spray flow rate, ensuring uniform coating distribution on the inner wall of the sealing ring, and making the operation simple and convenient; thirdly, based on the cooperation of multiple spray ports, it is easy to accurately control the stable spraying of materials; at the same time, it ensures that the sprayed material is evenly distributed in each area of ​​the inner wall of the sealing ring, avoiding repeated spraying; fourthly, based on the contact between the inverted part and the fitting part, the sealing ring is sealed... The ring is stably hooked onto the bracket ring from the end of the ring opening, which not only facilitates the full unfolding of other parts of the sealing ring but also increases the stability of the inverted hanging. At the same time, the sealing ring can better fit the inner ring of the bracket ring, preventing it from falling off due to an oversized bracket ring or being squeezed and twisted due to an undersized bracket ring. Fifthly, based on the stable support formed by the equilateral triangle, the bracket ring forms a stable top support, while reducing the number of bracket rods, optimizing the structure, and increasing the exposed area for easy operation. Sixthly, the top support height of the bracket ring can be adjusted by the relative cooperation of the nut and screw to meet the positioning needs of sealing rings of different specifications, increasing the practicality of positioning and matching. Seventhly, it can reduce the weight of the rotating seat, reduce material usage, save costs, and make rotation easier. The weight distribution of the rotating seat is uniform, improving the overall rotational stability of the rotating seat and preventing the center of gravity from shifting.

[0045] The present utility model has been described in detail above, with the aim of enabling those skilled in the art to understand its contents and implement it. However, this description should not be construed as limiting the scope of protection of the present utility model. All equivalent changes or modifications made in accordance with the spirit and essence of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A spraying device for smoothing the surface of a sealing ring, characterized in that, It includes a rotating base, a frame ring disposed above the rotating base, a connecting frame connecting the rotating base and the frame ring, a power unit that drives the rotating base to rotate around a vertical center line, and a spraying component. The connecting frame forms a positioning area in the circumferential direction that matches the sealing ring. The sealing ring is inserted into the inner ring of the frame ring from top to bottom, and the sealing ring is suspended from the top of the frame ring and naturally unfolded and positioned in the positioning area from the bottom. The spraying component includes a spraying head that extends into the inner ring of the sealing ring from top to bottom and is disposed close to the inner wall of the sealing ring. The spraying direction formed by the spraying head is fixed, and as the rotating base drives the sealing ring to rotate, the spraying area formed by the spraying head covers the inner wall of the sealing ring.

2. The spraying apparatus for smoothing the surface of a sealing ring according to claim 1, characterized in that, The spray head has multiple spray ports spaced vertically, wherein the spray direction of each spray port is the same and is parallel to the radial direction of the sealing ring.

3. The spraying apparatus for smoothing the surface of a sealing ring according to claim 2, characterized in that, The spraying areas formed by two adjacent spraying ports on the inner wall of the sealing ring coincide from the boundary; and / or, during spraying, the upper and lower boundaries of the spraying areas formed by the uppermost and lowermost spraying ports on the inner wall of the sealing ring are flush with the top and bottom edges of the inner wall of the sealing ring.

4. The spraying apparatus for smoothing the surface of a sealing ring according to claim 2, characterized in that, The distance between each spraying port and the inner wall of the sealing ring is d, and the inner radius of the sealing ring is r, where 0.25r≤d≤0.45r.

5. The spraying apparatus for smoothing the surface of a sealing ring according to claim 1, characterized in that, The center lines of the rotating seat, the frame ring, and the sealing ring are aligned.

6. The spraying apparatus for smoothing the surface of a sealing ring according to claim 1, characterized in that, The sealing ring includes an inverted part hanging on the frame ring, a fitting part that fits the inner ring of the frame ring from the outer periphery, and a suspended part suspended between the frame ring and the rotating seat.

7. The spraying apparatus for smoothing the surface of a sealing ring according to claim 6, characterized in that, The connecting frame includes multiple support rods arranged in a ring around the rotation center line of the rotating seat, and the suspended part abuts against the multiple support rods from the outer wall.

8. The spraying apparatus for smoothing the surface of a sealing ring according to claim 7, characterized in that, Each of the frame rods includes a screw and a nut, wherein the lower end of the screw passes downward through the rotating seat and the upper end is fixedly connected to the frame ring, and the nut cooperates with the screw to adjust the distance between the frame ring and the rotating seat.

9. The spraying apparatus for smoothing the surface of a sealing ring according to claim 1, characterized in that, The rotating seat is provided with a through hole that penetrates itself; there are multiple sets of through holes, each set is arranged in a circular array with the rotation center line of the rotating seat as the reference, and the inner diameter of each set of through holes is equal.

10. The spraying apparatus for smoothing the surface of a sealing ring according to claim 1, characterized in that, The spraying component also includes a lifting driver that drives the spraying head to move up and down to insert or disengage from the inner ring of the sealing ring.

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