Hardware surface treatment device

Abstract

The invention relates to the technical field of surface treatment, in particular to a hardware surface treatment device which comprises a rack, a conveying mechanism for conveying pipe fittings and a machining mechanism for machining the surfaces of the pipe fittings. The machine frame is divided into a conveying frame and a machining frame. The conveying mechanism comprises conveying wheels rotationally installed on the conveying frame, a first motor driving the conveying wheels to rotate and an auxiliary pushing assembly pushing the pipe fittings to move on the conveying frame. By arranging the machining machine mechanism, the technological process of synchronous spraying and grinding is achieved, the production takt is optimized, the total time needed for independent spraying and grinding is shortened, the overall machining efficiency is improved, meanwhile, the temperature generated when the outer wall is ground can be conducted to the inner wall of the pipe, and the machining efficiency is improved. And spraying liquid just sprayed on the inner wall of the pipe fitting is preliminarily dried, and the adsorption capacity of the inner wall of the pipe fitting is increased.

Description

Technical Field

[0001] The invention relates to the technical field of surface treatment, and in particular to a hardware surface treatment device. Background Art

[0002] Hardware refers to tools made of gold, silver, copper, iron, tin and other metals through processing and casting, which are used to fix things, process things and decorate. The processing process refers to the whole process of making products from raw materials (or semi-finished products), including the transportation and storage of raw materials, preparation for production, manufacturing of blanks, processing and heat treatment of parts, assembly, painting and packaging, etc.

[0003] When spraying thin-walled pipe fittings, they are more susceptible to erosion and corrosion due to their thin wall thickness, resulting in safety hazards and shortened service life. Therefore, in order to enhance the corrosion resistance, wear resistance and impact resistance of thin-walled pipe fittings, and at the same time respond to the needs of environmental protection and efficient production, the use of internal spraying technology has become a necessary choice. This technology effectively isolates the medium and extends the life of the pipe fittings by forming a dense anti-corrosion layer on the inner wall. It also uses modern environmentally friendly materials and automated spraying processes to improve production efficiency and coating quality, ensuring the safety and stability of industrial transportation.

[0004] Patent application number CN202410501958.2 discloses an electrostatically-acting pipe uniform spraying device, which relates to the field of spraying technology. The spraying device includes a frame, a conveyor belt, a guide rail and a rack rail are installed above the frame, a drive seat is installed on the guide rail and the rack rail, two symmetrically distributed vertical mold groups are installed on the drive seat, a bearing seat is installed between the two vertical mold groups, a central axis is installed above the bearing seat, a spray gun is installed on the central axis, the conveyor belt transports the pipe, the spray gun is installed with a driving wheel, the spray gun can be detached from the central axis and move on the conveyor belt or in the pipe, the spray gun sprays the inner and outer surfaces of the pipe, an electrostatic ring is provided on the spray gun, the electrostatic ring is connected to the negative pole of the power supply, the conveyor belt connects the pipe to the positive pole of the power supply and is grounded, and the spray gun uses electrostatic spraying technology to spray the pipe.

[0005] This patent realizes automatic spraying of the pipeline by driving the barrel to move inside or outside the pipeline through the driving wheel on the adjusting ring. However, when spraying inside the pipe, when the newly sprayed liquid contacts the inner wall of the pipe, due to its initial kinetic energy and momentum, as well as the inclination of the inner wall, the liquid tends to flow along the inner wall, and the air in the pipeline is relatively stagnant, which makes it difficult for the spray liquid in the pipeline to dry in a short time. As a result, the spray liquid just sprayed on the inner wall surface cannot be well adsorbed to the inner wall of the pipe, resulting in the liquid sprayed on the pipe near the top being thin, resulting in uneven spraying.

[0006] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the invention

[0007] The purpose of the present invention is to provide a hardware surface treatment device which can effectively solve the above technical problems.

[0008] In order to achieve the purpose of the present invention, the following technical scheme is adopted:

[0009] A hardware surface treatment device comprises: a frame, a conveying mechanism for conveying pipes, and a processing mechanism for processing the surface of the pipes;

[0010] The frame is divided into a conveying frame and a processing frame;

[0011] The conveying mechanism comprises: a conveying wheel rotatably mounted on the conveying frame, a motor for driving the conveying wheel to rotate, and an auxiliary pushing component for pushing the pipe to move on the conveying frame;

[0012] The processing mechanism includes: a grinding component for grinding the outer surface of the pipe fitting, a spraying component for spraying the inner surface of the pipe fitting, and a dust-proof component for preventing iron filings generated when grinding the outer wall from splashing onto the inner wall of the pipe fitting;

[0013] The grinding assembly comprises: a second motor, a first rotating disk rotatably mounted on the processing frame, a second rotating disk fixedly connected to the output shaft of the second motor, a limiting groove provided on the first rotating disk, a guide through groove provided on the second rotating disk, and a grinding piece slidingly mounted in the limiting groove through the guide through groove;

[0014] The spraying assembly comprises: a mounting plate that rotates synchronously with the second motor, a support rod that is slidably mounted on the mounting plate, a spraying member that is fixedly mounted on the support rod, and a water volume regulating unit that changes the amount of water sprayed as the support rod slides on the mounting plate; the support rod is elastically connected to the mounting plate through a spring, and the output shaft of the second motor is fixedly connected to the mounting plate;

[0015] The second motor drives the spray head to rotate in the pipe, and while rotating and spraying the inner wall of the pipe, drives the grinding piece to abut against the outer wall of the pipe to grind the outer wall of the pipe; the grinding piece and the support rod are always located at the inner and outer walls of the pipe at the same position.

[0016] Furthermore, the water volume regulating component includes: a water volume regulating member for regulating the water volume of the spraying member when rotating, and a rotating unit for controlling the rotation of the knob of the water volume regulating member; the water volume regulating member is connected to the spraying member through a pipe.

[0017] Furthermore, the rotating unit includes: a rack 1 fixedly connected to the support rod, and a gear ring fixedly mounted on the knob, wherein the gear ring is fixedly connected to the rack.

[0018] Furthermore, the auxiliary pushing assembly includes: a push plate slidably mounted on the conveying frame, a second rack fixedly connected to the push plate, and a gear coaxially fixedly connected to the motor, wherein the gear is meshed with the second rack.

[0019] Furthermore, the dustproof assembly is composed of a dustproof plate and a second spring; the dustproof plate is slidably mounted on the processing frame; the second spring drives the dustproof plate to reset;

[0020] The dustproof plate is arranged in the transmission direction of the pipe.

[0021] Furthermore, an extrusion groove is provided on the dustproof plate.

[0022] Furthermore, the dustproof plate is also provided with a sensing element, and the mounting plate is provided with a proximity sensor matching the sensing element; the proximity sensor is electrically connected to the second motor;

[0023] The dustproof plate moves away from the mounting plate and the proximity sensor controls the motor 2 to start, and the dustproof plate abuts against the mounting plate and the proximity sensor controls the motor 2 to stop.

[0024] Furthermore, the grinding piece is composed of a connecting rod, a grinding head and a spring; the connecting rod passes through the guide through-slot and is slidably installed in the limiting slot, and the grinding head is elastically installed on the connecting rod through the spring.

[0025] Furthermore, a ball is provided at the top end of the support rod; the support rod slides in the pipe through the ball.

[0026] Compared with the prior art, the present invention has the following beneficial effects: the present invention optimizes the production rhythm by setting up a processing machine mechanism to realize the process flow of synchronous spraying and polishing, reduces the total time required for separate spraying and polishing, and improves the overall processing efficiency. At the same time, the temperature generated when the outer wall is polished will be transmitted to the inner wall of the pipe fitting, so that the spray liquid just sprayed on the inner wall of the pipe fitting can be preliminarily dried, thereby increasing the adsorption force of the inner wall of the pipe fitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0028] Figure 1 It is a structural schematic diagram of a hardware surface treatment device of the present invention;

[0029] Figure 2 It is an internal cross-sectional view of a hardware surface treatment device of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the transmission mechanism in the present invention;

[0031] Figure 4 It is a structural schematic diagram of the auxiliary propulsion component in the present invention;

[0032] Figure 5 It is a schematic diagram of the structure during the processing of the present invention;

[0033] Figure 6 for Figure 5 The structural diagram of part A in the figure;

[0034] Figure 7 It is a structural schematic diagram of the processing mechanism in the present invention;

[0035] Figure 8 for Figure 7 The structural diagram of part B;

[0036] Fig. 9 It is a structural schematic diagram of the spraying assembly in the present invention;

[0037] Fig.10 It is a schematic structural diagram of another structure of the grinding head in the present invention.

[0038] In the figure: 1. frame; 2. conveying mechanism; 3. processing mechanism; 4. pipe fittings; 11. conveying frame; 12. processing frame; 21. transmission wheel; 22. motor 1; 23. auxiliary pushing component; 311. motor 2; 312. rotating disk 1; 313. rotating disk 2; 314. limiting groove; 315. guide through groove; 316. grinding part; 321. mounting plate; 322. support rod; 323. spraying part; 327. spring 1; 3261. rack 1; 3262. gear ring; 231. push plate; 232. rack 2; 233. gear; 331. dustproof plate; 332. spring 2; 3311. extrusion groove; 3161. connecting rod; 3612. grinding head; 3613. spring 3; 3221. ball; 3614. grinder. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments.

[0040] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0041] like Figures 1 to 9 As shown, a hardware surface treatment device of the present invention comprises: a frame 1, a conveying mechanism 2 for conveying a pipe 4, and a processing mechanism 3 for processing the surface of the pipe 4;

[0042] The frame 1 is divided into a conveying frame 11 and a processing frame 12; the conveying mechanism 2 includes: a conveying wheel 21 rotatably mounted on the conveying frame 11, a motor 22 driving the conveying wheel 21 to rotate, and an auxiliary pushing component 23 pushing the pipe 4 to move on the conveying frame 11;

[0043] The staff transports the pipe 4 to be processed to the conveying wheel 21 of the conveying rack 11, so that the axial direction of the pipe 4 is the same as the feeding direction of the conveying rack 11; at this time, the motor 22 rotates, and the motor 22 drives the conveying wheel 21 to rotate synchronously through the transmission member, so that the pipe 4 placed on the transmission wheel 21 moves along the conveying rack 11 toward the processing rack 12, thereby realizing automatic loading of the pipe 4; it should be noted here that the transmission member is preferably a belt, and the motor is preferably a reduction motor.

[0044] However, in a pipe 4 conveying system that relies solely on a transmission wheel as a power source, when the pipe 4 encounters significant resistance, transmission stagnation may occur, thereby causing adverse interference to subsequent processing procedures and affecting the continuity and efficiency of the production line.

[0045] The auxiliary pushing assembly 23 includes: a push plate 231 slidably mounted on the conveying frame 11, a rack 232 fixedly connected to the push plate 231, a gear 233 coaxially fixedly connected to the motor 1 22, and the gear 233 meshes with the rack 232;

[0046] When the motor drives the conveying wheel to rotate, the gear 233 is driven to rotate synchronously. The gear 233 drives the rack and the push plate 231 fixedly installed on the rack to move. The push plate 231 slides along the processing direction. When the transmission of the pipe 4 is stagnant due to resistance, the push plate 231 can continue to move, replacing the conveying wheel 21 to push the pipe 4 to move toward the processing rack 12, thereby further solving the problem that the pipe 4 encounters significant transmission stagnation, affecting the continuity and efficiency of the production line.

[0047] It should be added here that when the pipe fitting 4 is transported from the conveying rack 11 to the processing rack 12, the push plate 231 is always in contact with one end of the pipe fitting 4, so that when the outer wall of the pipe fitting 4 is subsequently polished, the waste generated during the polishing process is prevented from invading the inside of the pipe fitting 4 from the side of the push plate 231. This protective measure effectively prevents the inner wall of the pipe that has been sprayed from being contaminated by processing debris, thereby ensuring the integrity and cleanliness of the coating inside the pipe.

[0048] The dustproof assembly is composed of a dustproof plate 331 and a second spring 332; the dustproof plate 331 is slidably mounted on the processing frame 12; the second spring 332 drives the dustproof plate 331 to reset; the dustproof plate 331 is arranged in the transmission direction of the pipe 4;

[0049] The pipe 4 is driven by the conveying mechanism 2 and moves slowly toward the processing rack 12. When the pipe 4 approaches the predetermined position of the processing rack 12, the end of the pipe 4 facing the processing rack 12 first contacts the dustproof plate 331, and the dustproof plate 331 completely covers the end to form a sealed state, so that when the outer wall of the pipe 4 is polished, the push plate 231 and the dustproof plate 331 seal the two ends of the pipe 4. This double protection mechanism ensures that when the outer wall of the pipe 4 is polished, the grinding dust or processing debris generated are effectively isolated from the outside of the pipe 4, thereby maintaining the clean environment inside the pipe 4 before and during the spraying operation.

[0050] It should be noted here that the predetermined position on the processing frame 12 is the position where one end of the pipe 4 is about to contact and release the grinding piece 316.

[0051] The dustproof plate 331 is also provided with a sensing element, and the mounting plate 321 is provided with a proximity sensor matching the sensing element; the proximity sensor is electrically connected to the motor 2 311; when the dustproof plate 331 moves away from the mounting plate 321, the proximity sensor controls the motor 2 311 to start, and when the dustproof plate 331 abuts against the mounting plate 321, the proximity sensor controls the motor 2 311 to stop.

[0052] When the pipe 4 comes into contact with the dustproof plate 331 and triggers the dustproof plate 331 to perform synchronous linear displacement in the same direction, the sensing element on the dustproof plate 331 moves away from the proximity sensor on the mounting plate 321, so that the control circuit of the motor 2 311 is closed, thereby starting the motor 2 311;

[0053] After the processing flow is completed, the conveying mechanism 2 drives the processed pipe 4 to move in the opposite direction. At this time, the spring 2 332 acts as a reset element, and uses its elastic potential energy to push the dustproof plate 331 back to the initial position. During this process, the dustproof plate 331 still maintains a slight contact or close proximity with the pipe 4 to ensure that during the entire process of returning from the processing rack 12 to the conveying rack 11, the inside of the pipe 4 is protected from dust, foreign matter and other adverse factors in the external environment, and the cleanliness and integrity after processing are maintained; at the same time, the proximity sensor approaches the sensing element, and the motor 2 311 stops rotating; thereby, through the mutual cooperation of the proximity sensor and the sensing element, the automatic control of the start and stop of the motor 2 311 is realized, the automation level and response speed of the production line are improved, and then, unnecessary energy consumption is avoided, which is in line with the concept of green production in modern industry.

[0054] It should be added here that the proximity sensor is preferably a magnetic proximity switch, and the sensing element is preferably a permanent magnet, and the specific model is LJ12A3-2-Z / DX.

[0055] The spraying assembly includes: a mounting plate 321 that rotates synchronously with the second motor 311, a support rod 322 that is slidably mounted on the mounting plate 321, a spraying member 323 that is fixedly mounted on the support rod 322, and a water volume regulating unit that changes the spraying water volume as the support rod 322 slides on the mounting plate 321; the support rod 322 is elastically connected to the mounting plate 321 through a spring 1 327, and the output shaft of the second motor 311 is fixedly connected to the mounting plate 321;

[0056] The second motor 311 drives the spray head to rotate in the pipe fitting 4, and while rotating and spraying the inner wall of the pipe fitting 4, drives the grinding piece 316 to abut against the outer wall of the pipe fitting 4 to grind the outer wall of the pipe fitting 4; the grinding piece 316 and the support rod 322 are always located at the inner and outer walls of the same position of the pipe fitting 4;

[0057] The pipe 4 is conveyed to the processing mechanism 3 along with the conveying mechanism 2, and first abuts against the dustproof plate 331, so that the dustproof plate 331 moves synchronously with the pipe 4. Since the dustproof plate 331 is provided with an extrusion groove 3311, which is in the form of a tapered oblique groove, in the initial static state, the support rod 322 will be squeezed and compressed in the extrusion groove 331 by the extrusion groove 331. When the pipe 4 is attached to the dustproof plate 331 and the dustproof plate 331 is pushed to move synchronously, the support rod 331 moves along the extrusion groove 331 to the inner wall of the pipe 4 to support the inner wall of the pipe 4. At the same time, when the pipe 4 abuts against the dustproof plate 331, a sealing effect is achieved to prevent dust from entering the interior of the pipe. In this process, the spring 327 built into the support rod 322 plays a role to ensure that Inside the pipe 4, the support rods 322 can be effectively unfolded to provide stable support for the inside of the pipe 4; and the distance between the spray port of the spray piece 323 and the supporting top of the support rod 322 is set at 10 to 15CM, so that when the pipe 4 is of different sizes, the spray head and the inner wall of the pipe 4 always maintain the optimal spraying distance, which significantly reduces the need for operators to manually adjust pipes 4 of different sizes; as the pipe 4 moves toward the processing frame 12 under the continuous push of the transmission mechanism, the dustproof plate 331 moves synchronously and triggers the motor 2 311 to start; the motor 2 311 drives the support rod 322 and the spray piece 323 to rotate inside the pipe 4 through the transmission mechanism, realizing a comprehensive rotation spraying operation on the inner wall of the pipe 4, effectively reducing the spraying blind area and improving the spraying quality and efficiency.

[0058] A ball 3221 is provided at the top of the support rod 322; the support rod 322 slides in the pipe 4 through the ball 3221, so as to significantly reduce the resistance of the support rod 322 when moving in the pipe 4, making the operation smoother.

[0059] As a further extension of the present patent, the water volume regulating assembly includes: a water volume regulating member for regulating the water volume of the spray member, and a rotating unit for controlling the rotation of the water volume regulating member knob; the water volume regulating member is connected to the spray member through a pipe fitting 4; a rack 3261 fixedly connected to the support rod 322, and a gear ring 3262 fixedly mounted on the knob, and the gear ring 3262 is fixedly connected to the rack.

[0060] It should be noted here that the water volume regulating component is preferably a butterfly valve, and the knob is a valve plate for controlling the rotation of the valve body in the butterfly valve; the valve plate is coaxially fixedly connected to the gear 3262 through a connecting piece;

[0061] When the inner diameter of the pipe 4 decreases, the support rod 322 contracts inward and synchronously drives the rack 3261 to move in the same direction, the rack 3261 drives the gear ring 3262 to rotate, and the gear ring 3262 drives the knob to rotate in the direction of reducing the water volume, thereby reducing the amount of water sprayed, thereby preventing the problem of poor spraying effect caused by excessive spraying volume. Conversely, the rack 3261 drives the gear ring 3262 to rotate in the opposite direction to increase the spraying amount of the spray liquid, thereby ensuring uniform and high-quality spraying effect in pipes 4 with different inner diameters. The entire adjustment process realizes automated control, thereby improving production efficiency and consistency of spraying quality.

[0062] The processing mechanism 3 includes: a grinding component for grinding the outer surface of the pipe fitting 4, a spraying component for spraying the inner surface of the pipe fitting 4, and a dust-proof component to prevent iron filings generated when grinding the outer wall from splashing onto the inner wall of the pipe fitting 4; the grinding component includes: a second motor 311, a rotating disk 1 312 rotatably mounted on the processing frame 12, a rotating disk 2 313 fixedly connected to the output shaft of the second motor 311, a limiting groove 314 provided on the rotating disk 1 312, a guide through groove 315 provided on the rotating disk 2 313, and a grinding piece 316 that passes through the guide through groove 315 and is slidably mounted in the limiting groove 314; the grinding piece 316 consists of a connecting rod 3161, a grinding head 3612, and a spring 3613; the connecting rod 3161 passes through the guide through groove 315 and is slidably mounted in the limiting groove 314, and the grinding head 3612 is elastically mounted on the connecting rod 3161 through the spring 3613.

[0063] When the motor 2 311 rotates, the rotating disk 2 313 rotates accordingly, and squeezes the connecting rod 3161 in the guide through groove 315 to move in the limiting groove 314, so that the motor 2 311 will first slide the connecting rod 3161 toward the center of the rotating disk 1 312 when rotating. At this time, the grinding head 3612 at one end of the connecting rod 3161 gradually approaches the outer wall of the processed pipe 4 until it is completely fitted. At this time, the connecting rod 3161 cannot move toward the center of the circle along the limiting groove 314, and the rotating disk 2 313 continues to apply pressure to the connecting rod 3161. The rotating disk 1 312 rotates synchronously with the rotating disk 2 313 under the restriction of the connecting rod 3161, so that the grinding head 3612 rotates with the rotating disk 1 312, thereby realizing the grinding of the outer wall of the pipe 4 while the motor 2 311 rotates;

[0064] It should be noted here that when grinding pipes 4 of different materials and specifications, there may be differences in the grinding. Therefore, as a further development of this patent, the grinding head 3612 is replaced by a grinding machine 3614 that can grind autonomously; the specific structure is as follows Fig.10As shown, when the motor 2 311 rotates, the grinder 3614 can be transported to the surface of the pipe fitting and rotated along the surface of the pipe fitting 4 to grind the surface of the pipe fitting 4. The grinder 3614 can autonomously adjust the grinding speed according to different pipe diameters 4 to further meet actual production needs.

[0065] By setting spring three 3613, when the size of the pipe 4 changes slightly, the contact state between the connecting rod 3161 and the grinding head 3612 and the outer wall of the pipe 4 is automatically adjusted through its elastic deformation, ensuring that a stable grinding effect and contact pressure can be maintained on pipes 4 of different sizes, thereby realizing an adaptive grinding process.

[0066] It should be added here that, since the support rod 322 is located directly below the grinding head 3612, when processing the pipe fitting 4, the support rod 322 supports the inner wall of the pipe fitting 4, and the grinding head 3612 performs contact rotation grinding on the outer wall of the same part of the pipe fitting 4, and then when grinding the thin-walled pipe fitting 4, the support rod 322 can provide a reverse force for the pressure generated by the grinding head 3612. This reverse force mechanism largely offsets the centripetal pressure generated by the grinding head 3612 alone, and effectively prevents deformation, rupture or other forms of damage to the pipe fitting 4 caused by concentrated processing pressure; therefore, the support rod 322 can not only limit the spraying distance of the spraying part 323, but also support the inner diameter of the pipe fitting 4 to prevent deformation, rupture or other forms of damage to the pipe fitting 4;

[0067] Moreover, since the pipe fitting 4 to be processed is a thin-walled pipe fitting 4, the outer wall is polished simultaneously while the inner wall is sprayed. The temperature generated when the outer wall is polished will be transmitted to the inner wall of the pipe fitting 4, so that the spray liquid just sprayed on the inner wall of the pipe fitting 4 will be initially dried, thereby increasing the adsorption force of the inner wall of the pipe fitting 4 and preventing the spray liquid at the top of the pipe fitting 4 from flowing downward along the pipe fitting 4 when the spraying water volume is slightly large, causing uneven spraying.

[0068] The heat generated by the outer wall during the grinding process is quickly transferred to the inner wall through the thermal conductivity of the thin-walled pipe 4, which produces a preheating effect on the spray liquid layer that has just completed the spraying operation. This preheating not only accelerates the initial drying process of the spray liquid, but also promotes the physical and chemical bonding between the spray liquid and the inner wall of the pipe 4, thereby enhancing the adsorption force of the spray layer. This change is effective in preventing problems such as improper control of the spraying amount, such as: the top spray liquid flowing downward along the inner wall of the pipe 4 due to a slightly large amount of spray water, forming an uneven coating or dripping.

[0069] In addition, the process flow of simultaneous spraying and polishing optimizes the production cycle, reduces the total time required for separate spraying and polishing, and improves the overall processing efficiency. At the same time, since the inner and outer walls are processed simultaneously, the errors that may be introduced by multiple clamping or transfer of the pipe 4 are reduced, further improving the processing accuracy and product quality.

[0070] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0071] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A hardware surface treatment device, characterized in that: include: Rack, conveying mechanism for conveying pipe fittings, processing mechanism for processing the surface of pipe fittings; The frame is divided into a conveying frame and a processing frame; The conveying mechanism comprises: a conveying wheel rotatably mounted on the conveying frame, a motor for driving the conveying wheel to rotate, and an auxiliary pushing component for pushing the pipe to move on the conveying frame; The processing mechanism includes: a grinding component for grinding the outer surface of the pipe fitting, a spraying component for spraying the inner surface of the pipe fitting, and a dust-proof component for preventing iron filings generated when grinding the outer wall from splashing onto the inner wall of the pipe fitting; The grinding assembly comprises: a second motor, a first rotating disk rotatably mounted on the processing frame, a second rotating disk fixedly connected to the output shaft of the second motor, a limiting groove provided on the first rotating disk, a guide through groove provided on the second rotating disk, and a grinding piece slidingly mounted in the limiting groove through the guide through groove; The spraying assembly comprises: a mounting plate that rotates synchronously with the second motor, a support rod that is slidably mounted on the mounting plate, a spraying member that is fixedly mounted on the support rod, and a water volume regulating unit that changes the amount of water sprayed as the support rod slides on the mounting plate; the support rod is elastically connected to the mounting plate through a spring, and the output shaft of the second motor is fixedly connected to the mounting plate; The second motor drives the spray head to rotate in the pipe, and while rotating and spraying the inner wall of the pipe, drives the grinding piece to abut against the outer wall of the pipe to grind the outer wall of the pipe; the grinding piece and the support rod are always located at the inner and outer walls of the pipe at the same position.

2. A hardware surface treatment device as claimed in claim 1, characterized in that: The water volume regulating assembly comprises: a water volume regulating member for regulating the water volume of the spraying member when rotating, and a rotating unit for controlling the rotation of the knob of the water volume regulating member; the water volume regulating member is connected to the spraying member through a pipe.

3. A hardware surface treatment device as claimed in claim 2, characterized in that: The rotating unit comprises: a rack 1 fixedly connected to the support rod, and a gear ring fixedly mounted on the knob, wherein the gear ring is fixedly connected to the rack.

4. A hardware surface treatment device as claimed in claim 3, characterized in that: The auxiliary pushing assembly includes: a push plate slidably mounted on the conveying frame, a second rack fixedly connected to the push plate, and a gear coaxially fixedly connected to the motor, wherein the gear is meshed with the second rack.

5. A hardware surface treatment device as claimed in claim 1, characterized in that: The dustproof assembly is composed of a dustproof plate and a second spring; the dustproof plate is slidably mounted on the processing frame; the second spring drives the dustproof plate to reset; The dustproof plate is arranged in the transmission direction of the pipe.

6. A hardware surface treatment device as claimed in claim 5, characterized in that: The dustproof plate is provided with an extrusion groove.

7. A hardware surface treatment device as claimed in claim 6, characterized in that: The dustproof plate is also provided with a sensing element, and the mounting plate is provided with a proximity sensor matching the sensing element; the proximity sensor is electrically connected to the second motor; The dustproof plate moves away from the mounting plate and the proximity sensor controls the second motor to start, and the dustproof plate abuts against the mounting plate and the proximity sensor controls the second motor to stop.

8. A hardware surface treatment device as claimed in claim 1, characterized in that: The grinding piece is composed of a connecting rod, a grinding head and a spring; the connecting rod passes through the guide through-slot and is slidably installed in the limiting slot, and the grinding head is elastically installed on the connecting rod through the spring.

9. A hardware surface treatment device as claimed in claim 8, characterized in that: A ball is arranged on the top of the support rod; the support rod slides in the pipe through the ball.

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