Paint spraying protection device for wheel treads and inner side faces of rims in digital intelligent coating production line

Abstract

The invention discloses a paint spraying protection device for a wheel tread and the inner side face of a rim of a digital intelligent coating production line. The paint spraying protection device comprises a wheel upper protection structure and a wheel lower protection structure. The wheel upper portion protection structure covers the upper portion of the wheel, and the wheel upper portion protection structure is attached to the upper portion of the wheel when covering the upper portion of the wheel. When the wheel upper portion protection structure covers the upper portion of the wheel, the lower end portion of the wheel upper portion protection structure extends to the lower portion of the wheel and is in lap joint with the periphery of the wheel lower portion protection structure. The device effectively abandons the tedious steps of traditional material cutting and pasting through precise protection of parts without spraying, innovatively adopts a rapid installation structure, enables protection operation to be converted into an efficient flow of'instant installation and instant use 'from'slow and fine' manual operation, greatly shortens the single-wheel protection operation time, and improves the production efficiency. The overall circulation efficiency of a coating production line is promoted to be improved, and production line rhythm optimization is assisted.

Description

Technical Field

[0001] This invention relates to the field of railway vehicle bogie wheel production technology, and in particular to a digital intelligent painting production line wheel tread and inner rim paint protection device. Background Technology

[0002] In the field of rail vehicle manufacturing, the wheel treads and inner rims of bogies are explicitly exempt from painting according to stringent technical specifications. For a long time, the industry has commonly used protective methods such as tape, plastic protective film, and kraft paper. However, these traditional methods have many significant drawbacks: From an operational perspective, manual cutting and pasting of protective materials is required, a complex process demanding high worker skill; even slight errors necessitate rework, resulting in extremely low overall work efficiency. A single production line often requires a large number of personnel specifically for protective work, leading to high labor costs. From an environmental and cost perspective, protective materials are mostly single-use, becoming waste after use. This results in a serious waste of resources such as plastics and paper; furthermore, companies need to invest additional costs in collecting, storing, and environmentally treating this waste, increasing both economic burden and environmental pressure.

[0003] Currently, the construction of intelligent coating production lines for bogie wheels and hubs is accelerating. Traditional protection methods, due to their inefficiency, high cost, and environmental shortcomings, have become key bottlenecks hindering the intelligent upgrading of production lines. The need to optimize and upgrade this protection technology is becoming increasingly urgent, and the industry urgently needs a more efficient, precise, and green solution.

[0004] Therefore, based on the above-mentioned technical problems, those skilled in the art urgently need to develop a digital intelligent coating production line wheel tread and inner rim paint protection device. Summary of the Invention

[0005] The purpose of this invention is to provide a digital intelligent coating production line for painting protection of wheel treads and inner rim surfaces. This device effectively eliminates the tedious steps of traditional material cutting and pasting by precisely protecting areas that do not require painting. It innovatively adopts a rapid installation structure, transforming the protection operation from a slow and meticulous manual operation into a highly efficient process of "installation and use," significantly shortening the protection operation time per wheel, promoting the overall efficiency of the coating production line, and helping to optimize the production line cycle time.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This invention provides a protective device for painting the inner surface of wheel treads and rims on a digitalized coating production line. The protective device includes:

[0008] Upper wheel protection structure and lower wheel protection structure;

[0009] The upper protective structure of the wheel is installed on the upper part of the wheel, and when the upper protective structure of the wheel is installed on the upper part of the wheel, it is attached to the upper part of the wheel;

[0010] The lower wheel protective structure is fitted onto the lower part of the wheel, and when the upper wheel protective structure is covered onto the upper part of the wheel, its lower end extends to the lower part of the wheel and overlaps the outer periphery of the lower wheel protective structure.

[0011] When the upper wheel protection structure and the lower wheel protection structure are installed on the upper and lower parts of the wheel respectively, they are fixed to the corresponding positions inside the wheel by multiple internal support limiting members.

[0012] Furthermore, the outer diameter of the upper part of the wheel is larger than the outer diameter of the lower part of the wheel;

[0013] The upper wheel protection structure is configured to cover the cylindrical structure, and the thickness of the upper wheel protection structure is greater than the height of the upper part of the wheel and extends partially to the lower part of the wheel.

[0014] Furthermore, the underside protective structure of the wheel includes:

[0015] A wheel lower protective cylinder fitted around the lower outer periphery of the wheel; and

[0016] A wheel under-wheel protective plate is connected to and covers the lower end of the wheel, and is provided with the wheel under-wheel protective cylinder.

[0017] When the lower wheel protective cylinder is fitted onto the outer periphery of the lower wheel, the upper part of the lower wheel protective cylinder extends into the space between the upper wheel protective structure and the lower wheel, and overlaps with the upper wheel protective structure.

[0018] Furthermore, lifting lugs are provided on the outer periphery of the upper protective structure of the wheel and the outer periphery of the lower protective cylinder of the wheel.

[0019] Furthermore, the inner support limiting member includes:

[0020] Multiple inner support members are evenly distributed on the inner ring of the upper wheel protection structure. One end of each inner support member is connected to the upper wheel protection structure, and its lower end is close to and abuts against the lower wheel protection plate of the lower wheel protection structure.

[0021] A limiting member that mates with the inner support member at a corresponding position to achieve a limiting fit between the upper wheel protection structure and the wheel; and

[0022] A pressure piece with one end abutting against the lower protective plate of the wheel and the other end abutting against the inner rim of the wheel.

[0023] Furthermore, the inner support member includes a vertical part and a bent part, which are integrally formed.

[0024] The bending portion of the inner support member is generally wedge-shaped, and the bending portion of the inner support member is configured such that the thickness gradually decreases from the end near the vertical part of the inner support member to the end away from the vertical part of the inner support member, and the upper surface of the bending portion of the inner support member is a sloping structure.

[0025] Furthermore, the limiting member is divided into a first limiting member and a second limiting member;

[0026] The first limiting member is disposed on the side of the vertical part of the inner support member away from the bent part of the inner support member, and the side of the first limiting member that cooperates with the vertical part of the inner support member is an inclined structure, and the other side of the first limiting member is in contact with the inner rim of the wheel through a planar structure;

[0027] The second limiting member is disposed between the bent portion of the inner support member and the bottom of the inner rim of the wheel, and the side of the second limiting member that mates with the bent portion of the inner support member has an inclined structure, while the side of the second limiting member that mates with the wheel has a planar structure.

[0028] Furthermore, the pressure member is placed vertically and fixed between the lower protective plate of the wheel and the inner rim of the wheel.

[0029] Furthermore, the inner rim of the wheel is provided with inner rim protective plates at both the upper and lower ends, which are divided into an upper inner rim protective plate and a lower inner rim protective plate.

[0030] In the above technical solution, the present invention provides a paint protection device for the inner surface of wheel tread and rim of a digital intelligent coating production line, which has the following beneficial effects:

[0031] The device of this invention provides precise protection for areas that do not require painting, effectively eliminating the tedious steps of traditional material cutting and pasting. It innovatively adopts a rapid installation structure, transforming the protection operation from a slow and meticulous manual task into a highly efficient process that is "ready to use immediately." This significantly shortens the time for a single round of protection operations, promotes the overall efficiency of the coating production line, and helps optimize the production line's cycle time.

[0032] The device of this invention can work in conjunction with the robotic arm on the production line to replace manual operation with precise mechanical gripping and positioning. This avoids common problems in manual protection, such as being cheap, incomplete coverage, and over-protection. It ensures millimeter-level precise masking of areas that do not require painting, such as wheel treads and inner rim surfaces, thus safeguarding stable product quality.

[0033] The device of this invention reduces reliance on disposable protective materials such as tape and protective film, replacing them with reusable devices. This reduces material procurement costs at the source, while also reducing waste generation, alleviating companies' environmental protection investment, responding to green manufacturing policies, and easing environmental pressure. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0035] Figure 1 This is a top view of the paint protection device for the inner side of the wheel tread and rim of the intelligent coating production line disclosed in an embodiment of the present invention;

[0036] Figure 2 for Figure 1 Sectional view along the BB direction;

[0037] Figure 3 This is a schematic diagram showing the installation positions of the inner support and limiting components of the paint protection device for the inner side of the wheel tread and rim of the intelligent coating production line disclosed in an embodiment of the present invention.

[0038] Figure 4 This is a schematic diagram showing the installation positions of the pressure components and inner support components of the paint protection device for the inner side of the wheel tread and rim of the intelligent coating production line disclosed in an embodiment of the present invention.

[0039] Figure 5 This is an exploded view of the structure of the paint protection device for the inner side of the wheel tread and rim of the intelligent coating production line disclosed in an embodiment of the present invention.

[0040] Explanation of reference numerals in the attached figures:

[0041] 10. Wheel; 11. Upper part of the wheel; 12. Lower part of the wheel; 13. Hanger;

[0042] 1. Upper wheel protection structure; 2. Lower wheel protection structure; 3. Inner support component; 5. Pressing component;

[0043] 201. Under-wheel protective cylinder; 202. Under-wheel protective plate;

[0044] 301. Vertical part of the inner support member; 302. Bending part of the inner support member;

[0045] 401. First limiting component; 402. Second limiting component;

[0046] 601. Upper inner ring protective plate; 602. Lower inner ring protective plate. Detailed Implementation

[0047] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0048] See Figures 1 to 5 As shown;

[0049] This embodiment provides a paint protection device for the inner side of the wheel tread and rim of a digital intelligent coating production line. The device includes an upper wheel protection structure 1 and a lower wheel protection structure 2.

[0050] In this embodiment, the upper wheel protection structure 1 is covered on the upper part of the wheel 10, and when the upper wheel protection structure 1 is covered on the upper part of the wheel 11, it is attached to the upper part of the wheel 10.

[0051] The lower wheel protection structure 2 is fitted onto the lower part of the wheel 10. When the upper wheel protection structure 1 is covered on the upper part of the wheel 11, its lower end extends to the lower part of the wheel 12 and overlaps the outer periphery of the lower wheel protection structure 2.

[0052] When the upper wheel protection structure 1 and the lower wheel protection structure 2 are installed on the upper and lower parts of the wheel 10 respectively, they are fixed to the corresponding positions inside the wheel 10 by multiple internal support limiting members.

[0053] Specifically, in this embodiment, a protective structure is fixed to the corresponding position of the wheel 10. This structure directly covers areas that do not require painting, while exposing areas that need painting, allowing for painting operations. Furthermore, it eliminates the cumbersome drawbacks of manual protection using tape or protective film. This embodiment is divided into an upper wheel protective structure 1 and a lower wheel protective structure 2 based on the structure of the wheel 10. Corresponding perforated areas are processed according to the areas requiring painting and those not requiring painting. Non-perforated areas are used to cover areas that do not require painting, while perforated areas expose areas that need painting. Simultaneously, based on the structure of the wheel tread and the inner side of the rim, corresponding inner support limiting components are designed. These can be used with latches or other types of connectors to connect the entire protective structure to the wheel. Since there are many types of latches and connectors, this application only limits the scope from the perspective of the protective structure and the inner support limiting components at key positions, without limiting the structure of the latches.

[0054] See Figure 5As shown, preferably, the outer diameter of the upper part of the wheel 10 in this embodiment is larger than the outer diameter of the lower part of the wheel 10; secondly, the upper wheel protection structure 1 in this embodiment is configured to cover the cylindrical structure, and the thickness of the upper wheel protection structure 1 is greater than the height of the upper wheel 11 and partially extends to the lower wheel 12. In addition, based on the structure of the upper wheel protection structure 1, this embodiment further defines the composition of the lower wheel protection structure 2. Specifically, the lower wheel protection structure 2 in this embodiment includes a lower wheel protection cylinder 201 sleeved on the outer periphery of the lower wheel 12; and a lower wheel protection plate 202 connected to the lower wheel protection cylinder 201 and covering the lower end of the wheel 10.

[0055] When the lower wheel protective cylinder 201 is fitted around the outer periphery of the lower wheel 12, the upper part of the lower wheel protective cylinder 201 extends into the space between the upper wheel protective structure 1 and the lower wheel 12 and overlaps with the upper wheel protective structure 1.

[0056] In this embodiment, after the upper wheel protection structure 1 and the lower wheel protection structure 2 are respectively installed at one end of the wheel 10, in order to achieve the connection between the upper wheel protection structure 1 and the lower wheel protection structure 2, the two are partially overlapped. After overlapping, they can be connected by the locking structure mentioned above. In this way, the protection structure and the wheel 10 can be assembled into one unit, which is convenient for subsequent transportation and operation.

[0057] See Figure 1 and Figure 5 As shown, in order to cooperate with the production line robot and improve the level of digitalization, the outer periphery of the upper wheel protection structure 1 and the outer periphery of the lower wheel protection cylinder 201 in this embodiment are provided with lifting lugs 13.

[0058] See Figure 5 As shown, preferably, the inner support limiting member in this embodiment includes:

[0059] Multiple inner support members 3 are evenly distributed on the inner ring of the upper wheel protection structure 1. One end of the inner support member 3 is connected to the upper wheel protection structure 1, and its lower end is close to and abuts against the lower wheel protection plate 202 of the lower wheel protection structure 2.

[0060] The limiting member that mates with the inner support member 3 at the corresponding position to achieve the limiting fit between the upper wheel protection structure 1 and the wheel 10; and

[0061] A pressure piece 5, one end of which abuts against the lower protective plate 202 of the wheel and the other end of which is attached to the inner ring of the wheel 10.

[0062] In this embodiment, the inner support member 3 includes a vertical inner support member 301 and a bent inner support member 302, which are integrally formed. The bent inner support member 302 is wedge-shaped and is configured such that its thickness gradually decreases from the end near the vertical inner support member 301 to the end away from the vertical inner support member 301. The upper surface of the bent inner support member 302 is a sloping surface.

[0063] Based on the structure of the inner support member 3 described above, the limiting member in this embodiment is divided into a first limiting member 401 and a second limiting member 402. The first limiting member 401 is disposed on the side of the vertical portion 301 of the inner support member away from the bent portion 302, and the side of the first limiting member 401 that engages with the vertical portion 301 of the inner support member has an inclined structure. The other side of the first limiting member 401 is in contact with the inner rim of the wheel 10 through a planar structure. Furthermore, the second limiting member 402 is disposed between the bent portion 302 of the inner support member and the bottom of the inner rim of the wheel 10, and the side of the second limiting member 402 that engages with the bent portion 302 of the inner support member has an inclined structure. The side of the second limiting member 402 that engages with the wheel 10 has a planar structure.

[0064] Preferably, in this embodiment, the pressure member 5 is placed vertically and fixed between the lower protective plate 202 of the wheel and the inner ring of the wheel 10.

[0065] Preferably, in this embodiment, the upper and lower ends of the inner rim of the wheel 10 are provided with inner rim protective plates, which are divided into an upper inner rim protective plate 601 and a lower inner rim protective plate 602.

[0066] The protective device in this embodiment consists of an upper wheel protection structure 1 and a lower wheel protection structure 2. The outline of its components strictly matches the curved shape of the wheel tread and the inner side of the rim, ensuring a seamless fit when covering the protected area and achieving precise masking of areas that do not require painting. The aforementioned inner support limiting components can be selected in appropriate quantities and sizes according to actual installation requirements to install the upper and lower protective structures and to limit their engagement with corresponding parts of the wheel.

[0067] In the above technical solution, the present invention provides a paint protection device for the inner surface of wheel tread and rim of a digital intelligent coating production line, which has the following beneficial effects:

[0068] The device of this invention provides precise protection for areas that do not require painting, effectively eliminating the tedious steps of traditional material cutting and pasting. It innovatively adopts a rapid installation structure, transforming the protection operation from a slow and meticulous manual task into a highly efficient process that is "ready to use immediately." This significantly shortens the time for a single round of protection operations, promotes the overall efficiency of the coating production line, and helps optimize the production line's cycle time.

[0069] The device of this invention can work in conjunction with the robotic arm on the production line to replace manual operation with precise mechanical gripping and positioning. This avoids common problems in manual protection, such as being cheap, incomplete coverage, and over-protection. It ensures millimeter-level precise masking of areas that do not require painting, such as wheel treads and inner rim surfaces, thus safeguarding stable product quality.

[0070] The device of this invention reduces reliance on disposable protective materials such as tape and protective film, replacing them with reusable devices. This reduces material procurement costs at the source, while also reducing waste generation, alleviating companies' environmental protection investment, responding to green manufacturing policies, and easing environmental pressure.

[0071] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A paint protection device for the inner surface of wheel treads and rims in a digitalized painting production line, characterized in that, The protective device includes: Upper wheel protection structure (1) and lower wheel protection structure (2); The upper protective structure (1) of the wheel covers the upper part of the wheel (10), and when the upper protective structure (1) of the wheel covers the upper part (11) of the wheel, it is close to the upper part of the wheel (10); The lower wheel protection structure (2) is fitted onto the lower part of the wheel (10), and when the upper wheel protection structure (1) is covered on the upper part of the wheel (11), its lower end extends to the lower part of the wheel (12) and overlaps the outer periphery of the lower wheel protection structure (2). When the upper wheel protection structure (1) and the lower wheel protection structure (2) are installed on the upper and lower parts of the wheel (10) respectively, they are fixed to the corresponding positions inside the wheel (10) by multiple internal support limiting members.

2. The intelligent coating production line wheel tread and rim inner side spraying protection device according to claim 1, characterized in that, The outer diameter of the upper part of the wheel (10) is larger than the outer diameter of the lower part of the wheel (10); The upper wheel protection structure (1) is configured to cover the cylindrical structure, and the thickness of the upper wheel protection structure (1) is greater than the height of the upper wheel (11) and extends partially to the lower wheel (12).

3. The intelligent coating production line wheel tread and rim inner side spraying protection device according to claim 2, characterized in that, The lower wheel protection structure (2) includes: A wheel lower protective cylinder (201) fitted around the outer periphery of the lower part (12) of the wheel; and A wheel lower protective plate (202) is connected to the wheel lower protective cylinder (201) and covers the lower end of the wheel (10). When the lower wheel protective cylinder (201) is fitted around the lower wheel (12), the upper part of the lower wheel protective cylinder (201) extends into the space between the upper wheel protective structure (1) and the lower wheel (12) and overlaps with the upper wheel protective structure (1).

4. The intelligent coating production line wheel tread and rim inner side spraying protection device according to claim 3, characterized in that, The outer periphery of the upper wheel protection structure (1) and the outer periphery of the lower wheel protection cylinder (201) are both provided with lifting lugs (13).

5. The intelligent coating production line wheel tread and rim inner side spraying protection device according to claim 3, characterized in that, The internal support limiting member includes: Multiple inner support members (3) are evenly distributed on the inner ring of the upper wheel protection structure (1). One end of the inner support member (3) is connected to the upper wheel protection structure (1), and its lower end is close to and abuts against the lower wheel protection plate (202) of the lower wheel protection structure (2). A limiting member that mates with the inner support member (3) at a corresponding position to achieve a limiting fit between the upper wheel protection structure (1) and the wheel (10); and A pressure piece (5) with one end abutting against the lower protective plate (202) of the wheel and the other end abutting against the inner ring of the wheel (10).

6. The intelligent coating production line wheel tread and rim inner side spraying protection device according to claim 5, characterized in that, The inner support member (3) includes a vertical part (301) and a bent part (302), and the vertical part (301) and the bent part (302) are integrally formed. The inner support member bending portion (302) is generally wedge-shaped, and the inner support member bending portion (302) is configured such that the thickness gradually decreases from one end near the vertical part (301) of the inner support member to the end away from the vertical part (301) of the inner support member, and the upper surface of the inner support member bending portion (302) is a sloping structure.

7. The intelligent coating production line wheel tread and rim inner side spraying protection device according to claim 6, characterized in that, The limiting component is divided into a first limiting component (401) and a second limiting component (402). The first limiting member (401) is disposed on the side of the vertical part (301) of the inner support member away from the bent part (302) of the inner support member, and the side of the first limiting member (401) that cooperates with the vertical part (301) of the inner support member is a sloping structure, and the other side of the first limiting member (401) is in contact with the inner ring of the wheel (10) through a planar structure; The second limiting member (402) is disposed between the bent portion (302) of the inner support member and the bottom of the inner ring of the wheel (10), and the side of the second limiting member (402) that cooperates with the bent portion (302) of the inner support member is a sloping structure, and the side of the second limiting member (402) that cooperates with the wheel (10) is a planar structure.

8. The intelligent coating production line wheel tread and rim inner side spraying protection device according to claim 5, characterized in that, The pressure piece (5) is placed vertically and fixed between the lower protective plate (202) of the wheel and the inner ring of the wheel (10).

9. The intelligent coating production line wheel tread and inner rim spraying protection device according to claim 3, characterized in that, The inner rim of the wheel (10) is provided with inner rim protection plates at both the upper and lower ends, which are divided into an upper inner rim protection plate (601) and a lower inner rim protection plate (602).

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