A double station enamelling system for insulating sleeves

Abstract

The application discloses a double-station glazing system for insulating sleeves, which comprises a system host, a movable clamping tool mounted on an outer spread arm frame on a host frame of the system host, a fixed clamping tool on an auxiliary frame, clamping operation units on the movable clamping tool and the fixed clamping tool, a sealing base on the bottom of the movable clamping tool and the fixed clamping tool, a circulating pipeline in a glazing system connected with two branches through a three-way pipe with a reversing valve, the two branches connected with a main pressure grouting nozzle and an auxiliary pressure grouting nozzle respectively, and a glaze gun in a glazing system mounted on a mechanical arm, which can switch the working position between the host frame and the auxiliary frame and perform glazing operation through the action of the mechanical arm. Through the double-station design, the glazing operation can be performed on the small and medium-sized insulating sleeves on the auxiliary frame during the loading and unloading interval of the large-sized insulating sleeves, so that the equipment utilization rate and the glazing production efficiency can be effectively improved.

Description

Technical Field

[0001] This invention relates to the field of insulating porcelain sleeve manufacturing technology, and specifically to a dual-station glazing system for insulating sleeves with continuous glazing production capability. Background Technology

[0002] Insulating bushings are key components ensuring the stable operation of power systems. They are widely used in power transmission, distribution, and transformation equipment, as well as various electrical devices, to ensure the insulation safety of electrical equipment. The main body is made of electrical ceramic materials, possessing excellent insulation performance and mechanical strength. They come in various shapes, commonly cylindrical or umbrella-shaped. The umbrella-shaped structure increases creepage distance and effectively improves insulation performance in dirty or humid environments, preventing surface flashover.

[0003] For large-sized insulating bushings with an outer diameter exceeding 480mm and a height exceeding 900mm, their unique size and structural characteristics typically result in superior mechanical strength and electrical insulation properties, enabling them to meet more stringent application requirements. However, the molding of these large-size insulators is more challenging, with the application of glaze to the ceramic body surface being particularly crucial. The glaze not only provides additional mechanical protection, effectively preventing corrosion of the ceramic body by the external environment, but also significantly improves the electrical performance of the insulating bushing, enhancing its voltage withstand capability and reducing surface leakage. Furthermore, the glaze significantly improves the appearance of the ceramic body, enhancing its weather resistance and stain resistance.

[0004] In existing technologies, there are three main methods for glazing insulating bushings: dipping, spraying, and pouring. Dipping involves completely immersing the part of the ceramic body to be glazed into the glaze slurry. Spraying uses a spray gun to atomize the glaze slurry under high pressure and spray it onto the surface of the ceramic body. Pouring uses a nozzle to evenly pour the glaze slurry onto the surface of the ceramic body. Although these methods each have their advantages, they all have certain limitations for glazing large-size insulating bushings. Dipping has advantages such as high production efficiency, uniform glaze layer, smooth glaze surface, and rich glaze color, but it is inconvenient to operate on large-size bushings and consumes significant production resources such as equipment, space, and raw materials. While spraying and pouring offer better flexibility, their production efficiency is relatively low, the uniformity of the glaze layer is difficult to guarantee, and the glaze quality is easily affected by the skill level of the operators and equipment.

[0005] Currently, the common method for glazing large-size insulating sleeves involves using a fixing device to hold the ceramic body upright, ensuring a sealed bottom surface, and then performing a slurry-immersion glazing operation on the inner surface of the ceramic body; simultaneously, a spray gun is used to spray glaze the outer surface. While this method solves the glazing problem for large-size insulating sleeves to some extent, existing glazing systems of this type are mostly single-station structures, capable of glazing only one insulating sleeve at a time. This results in low production efficiency and cannot meet the needs of large-scale production. Furthermore, before glazing, these systems require specialized clamping equipment to ensure a sealed bottom surface, a cumbersome and time-consuming process that further contributes to low overall efficiency. However, if the glazing mechanism and spraying mechanism could be fully utilized during the ceramic body clamping process, the equipment utilization rate of the glazing system would be significantly improved.

[0006] For the reasons mentioned above, it is necessary to make structural improvements to the existing glazing system for large-size insulating sleeves at single stations, so that the idle mechanisms in the glazing system can be fully utilized during the loading and unloading of large-size insulating sleeves, thereby improving production efficiency, meeting the needs of continuous production and reducing production costs. Summary of the Invention

[0007] The technical problem solved by the present invention is to provide a dual-station glazing system for insulating sleeves, which can be used to overcome the defects in the above-mentioned technical background.

[0008] The technical problem solved by this invention is achieved by the following technical solution: A dual-station glazing system for insulating sleeves includes a system host, which includes a main frame, an auxiliary frame, a glazing dipping system, and a glazing spraying system. The main frame is equipped with a movable clamping fixture, which is mounted on an outward-extending boom. The movable clamping fixture can switch the position of the ceramic body between the working position and the unloading position through the outward and inward movements of the outward-extending boom. The auxiliary frame is located next to the main frame, and an operating space is reserved between them. The auxiliary frame is equipped with a fixed clamping fixture. Both the movable and fixed clamping fixtures are equipped with clamping units for clamping the ceramic body of the insulating sleeve. The clamping units on the movable clamping fixture are used to clamp ceramic bodies of large-sized insulating sleeves, while the clamping units on the fixed clamping fixture are used to clamp ceramic bodies of small and medium-sized insulating sleeves. Both the movable clamping fixture and the fixed clamping fixture are equipped with a sealing base at the bottom. The sealing base can seal the bottom surface of the ceramic body in the clamping state. The glazing system includes an glaze container and a circulation pipeline. One end of the circulation pipeline is connected to the glaze container, and the other end is connected to two branches via a tee with a reversing valve. The two branches are respectively connected to a main pressure grouting nozzle and an auxiliary pressure grouting nozzle. Both the main pressure grouting nozzle and the auxiliary pressure grouting nozzle are bidirectional nozzles. The main pressure grouting nozzle is inserted into the inner ceramic tube of a large-size insulating sleeve in the clamped state, and the auxiliary pressure grouting nozzle is inserted into the inner ceramic tube of a small-to-medium-size insulating sleeve in the clamped state. The glazing system includes a glaze gun, a glaze container, and a glaze supply pipeline. The glaze gun and the glaze container are connected by the glaze supply pipeline. The glaze gun is mounted on a robotic arm, which is located within the operating space. Through the movement of the robotic arm, the glaze gun can switch working positions and perform glazing operations between the main frame and the auxiliary frame.

[0009] As a further limitation, the outer diameter of the small-to-medium-sized insulating sleeve is 50% to 90% of the outer diameter of the large-sized insulating sleeve, and the height of the small-to-medium-sized insulating sleeve is 40% to 80% of the height of the large-sized insulating sleeve.

[0010] As a further limitation, the main frame and the auxiliary frame are mounted on a platform structure, and an overhead structural cavity is provided at the bottom of the platform structure. The driving element, glaze container and circulation pipeline of the glazing system, as well as the driving element, glaze container and glaze supply pipeline of the spraying system, are located in the overhead structural cavity.

[0011] As a further limitation, the outreach boom is driven and controlled by a stepper motor.

[0012] As a further limitation, the clamping operation unit used in both the movable clamping fixture and the fixed clamping fixture is an end face clamping structure; specifically, it includes a movable top plate arranged opposite to the sealing base. The movable top plate is arranged on the vertical guide structure and can be driven by external force to move up and down along the vertical guide structure to cooperate with the sealing base to achieve end face clamping and fixing of the ceramic body. The movable clamping fixture includes an L-shaped bracket, which is mounted on the outward extension arm on the back side of the vertical side, and the vertical guide structure is provided on the face side of the vertical side. The movable top plate is mounted on the vertical guide frame, and the sealing base is mounted on the horizontal side surface of the L-shaped bracket. The external force driving unit used to drive the movable top plate is a hydraulic cylinder or an electric push rod; A rubber pad is provided on the opposite surface of the movable top plate and the sealing base as a contact surface.

[0013] As a further limitation, the main frame and the auxiliary frame are provided with arc-shaped side baffles on the opposite sides of the glaze gun setting position. The arc-shaped side baffles have a cone-shaped cross section and are connected to a negative pressure fan on the back side to perform negative pressure suction on the glaze spraying area during the glaze gun spraying operation, so as to collect and discharge glaze mist and dust particles.

[0014] As a further limitation, the main pressure grouting nozzle and the auxiliary pressure grouting nozzle are located at the bottom of the feed pipe. During the grouting operation, the feed pipe is inserted into the inner tube of the ceramic body from the top until the main pressure grouting nozzle is in contact with the surface of the sealing base.

[0015] As a further limitation, the main pressure grouting nozzle and the auxiliary pressure grouting nozzle are located in the middle of the sealing base, with the upper part corresponding to the inner tube of the ceramic body in the clamping state.

[0016] As a further limitation, the nozzle of the glaze gun is a fan-shaped wide-angle glaze slurry nozzle.

[0017] As a further limitation, the movable clamping fixture and the fixed clamping fixture are respectively mounted on the main frame and the auxiliary frame via a rotating base. The ceramic body mounted on the movable clamping fixture and the fixed clamping fixture can rotate around its own axis via a rotating shaft support to cooperate with the glaze gun for glazing operation on the outer tube surface.

[0018] Beneficial Effects: The dual-station glazing system for insulating sleeves designed in this invention features a reasonable structure, convenient operation, and a high level of automation. The system employs a dual-station design, allowing for simultaneous glazing operations at one station while the ceramic body is clamped, thus effectively utilizing time resources, shortening the production cycle, and significantly improving production efficiency. This system effectively solves the problems of inconvenient operation and low production efficiency in glazing large-size insulating sleeves in existing technologies. Furthermore, this system optimizes the design of the glazing dipping and spraying mechanisms, making them more suitable for the glazing requirements of large-size insulating sleeves, ensuring a uniform glaze layer and a smooth glaze surface, further improving product quality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0020] The components include: 1. First branch guide rail; 2. Upper component cavity; 3. First branch guide seat; 4. First circulation pipeline branch; 5. Guardrail; 6. Maintenance platform; 7. First arc-shaped side guard; 8. Outward-extending shaft; 9. First guide seat; 10. First active rotating seat; 11. First movable top plate; 12. First ceramic body; 13. Outward-extending boom; 14. First sealing base; 15. Horizontal outward-extending plane; 16. Shaft-driven rotating seat; 17. Platform structure; 18. Guide rod; 19. 20. Glaze gun base; 21. Main frame; 22. Adjustable platform; 23. Second sealing base; 24. Sealing gasket; 25. Auxiliary frame; 26. Second ceramic body; 27. Robotic arm; 28. Glaze gun; 29. ​​Second movable top plate; 30. Second active rotating seat; 31. Second guide seat; 32. Second circulation pipeline branch; 33. Second arc-shaped side stop; 34. First guide rail; 35. Guide bushing; 36. Second branch guide seat; 37. Second branch guide rail. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0022] It should be noted that the embodiments in the specification, claims, and accompanying drawings of this invention can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed.

[0023] Furthermore, the embodiments shown in this detailed description are merely one example of the possible embodiments of the present invention and represent all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0024] See Figure 1 A schematic diagram of a preferred embodiment of a dual-station glazing system for insulating sleeves. In this embodiment, the dual-station glazing system includes a main frame 20 and an auxiliary frame 24. The auxiliary frame 24 is located beside the main frame 20, and an operating space is reserved between the auxiliary frame 24 and the main frame 20 for the robotic arm 26 of the glazing gun assembly and the operator's movement.

[0025] Both the main frame 20 and the auxiliary frame 24 are mounted on the platform structure 17. The lower part of the platform structure 17 has an overhead cavity. This cavity, in addition to housing electrical control components, also accommodates the drive components of the glazing system, the glaze container and circulation pipeline, as well as the drive components of the spraying system, the spraying glaze container and the glaze supply pipeline. This design makes efficient use of space, avoids a cluttered production site, and facilitates equipment maintenance and repair. Furthermore, the upper part of the overhead cavity is connected to the main frame 20, the auxiliary frame 24, and the upper component cavity 2, respectively, to facilitate the laying and connection of various electrical lines and pipelines. Considering the higher position of the upper component cavity 2, an overhead platform with guardrails 5 is also provided at the corresponding plane position of the upper component cavity 2 as a maintenance platform 6 for easier management and maintenance.

[0026] The main frame 20 has a main working station, while the auxiliary frame 24 has an auxiliary working station. In this embodiment, the main working station is primarily used for glazing a first ceramic body 12 with an outer diameter of 560mm and a height of 1050mm, which corresponds to a large-size insulating sleeve. The auxiliary working station is primarily used for glazing a second ceramic body 25 with an outer diameter of 300mm to 500mm and a height of 450mm to 850mm, which corresponds to a small-to-medium-size insulating sleeve. Through this dual-station design, the system can perform parallel glazing operations on the second ceramic body 25 using the auxiliary working station during the loading and unloading intervals of the first ceramic body 12, thereby effectively utilizing time and resources and further improving production efficiency and equipment utilization.

[0027] In order to realize the clamping function of the main working position, a movable clamping fixture for clamping the first ceramic body 12 is provided on the main frame 20. The movable clamping fixture includes a first sealing base 14 and a first movable top plate 11 arranged opposite to each other. The first sealing base 14 and the first movable top plate 11 have contact surfaces that match the bottom surface and top surface of the first ceramic body 12, respectively. A sealing gasket 23 is also formed on the contact surface of the first sealing base 14 to ensure the sealing performance between the bottom surface of the first ceramic body 12 and the first sealing base 14 in the clamping state.

[0028] The first sealing base 14 is mounted on the outward extension arm 13, which is fixedly mounted on the outward extension shaft 8. The top of the outward extension shaft 8 is provided with a bearing seat, and the bottom is connected to a shaft drive rotary seat 16. The shaft drive rotary seat 16 is externally connected to a stepper motor as a power source. Through the forward and reverse rotation of the stepper motor, the outward extension arm 13 can switch between outward and inward movements. A horizontal outward extension plane 15 is formed on one side of the lower part of the outward extension arm 13, and the first sealing base 14 is correspondingly mounted on the surface of the horizontal outward extension plane 15.

[0029] The first movable top plate 11 is mounted on the first guide rail 34 via the first guide seat 9. The first guide rail 34 is a vertical guide rail formed on the vertical side of the main frame 20. The main frame 20 has an electric push rod built in as the driving mechanism of the first guide seat 9. Through the action of the electric push rod, the first movable top plate 11 can slide up and down along the first guide rail 34, thereby realizing relative movement with the first sealing base 14, and completing the clamping and fixing of the end face of the first ceramic body 12 during the movement.

[0030] In this embodiment, considering the large size of the first ceramic body 12, a guide sleeve 35 is also provided on the first guide seat 9 to ensure the stability of the first movable top plate 11 during its movement. The combination of the guide sleeve 35 and the guide rod 18 serves as a guiding mechanism for the first movable top plate 11 during its movement. Through the cooperation of the guide rod 18 and the guide sleeve 35, the first movable top plate 11 can be effectively prevented from shifting during its movement, thus ensuring the clamping accuracy of the first ceramic body 12.

[0031] In another embodiment, rubber gaskets can be provided on the opposing surfaces of the first movable top plate 11 and the first sealing base 14. The rubber gaskets not only have good sealing performance, but also effectively prevent the first ceramic body 12 from being damaged during clamping.

[0032] To enable the clamping function of the auxiliary working position, a fixed clamping fixture is provided on the auxiliary frame 24 for clamping the second ceramic body 25. This fixed clamping fixture includes a second sealing base 22 and a second movable top plate 28. The structures of the second sealing base 22 and the second movable top plate 28 are similar to those of the first sealing base 14 and the first movable top plate 11, respectively, and are used to match the upper and lower end faces of the second ceramic body 25. The second movable top plate 28 also slides up and down on the second guide rail 31 on the vertical side of the auxiliary frame 24 via the second guide seat 30, thus cooperating with the second sealing base 22 with the sealing gasket 23 to achieve clamping and unloading of the second ceramic body 25. The biggest difference between this fixed clamping fixture and the movable clamping fixture is that the second sealing base 22 remains fixed in position throughout the glazing process, and its height can only be adjusted using the adjustable platform 21 when needed; unlike the movable clamping fixture, which can switch between the working position and the unloading position through the outward and inward movements of the outward boom 13.

[0033] The adjustable platform 21 is located on the bottom surface of the platform structure 17 at the corresponding position of the auxiliary frame 24, and its height position can be adjusted manually or electrically.

[0034] In this embodiment, the glazing of the inner tubes of the first ceramic body 12 and the second ceramic body 25 is achieved by glazing. The beginning of the circulation pipeline in the corresponding glazing system is connected to the glaze container, and a bidirectional pumping device is used as the driving unit. The end of the circulation pipeline is connected to the first circulation pipeline branch 4 and the second circulation pipeline branch 32 respectively through a tee with a reversing valve. The end of the first circulation pipeline branch 4 and the second circulation pipeline branch 32 are respectively provided with a main pressure grouting nozzle and an auxiliary pressure grouting nozzle. Both the main pressure grouting nozzle and the auxiliary pressure grouting nozzle are bidirectional nozzles, that is, they can realize the functions of grouting into the inner tube of the ceramic body and drawing back the glaze in the inner tube by the forward and reverse rotation of the bidirectional pumping device.

[0035] Both the first circulation pipe branch 4 and the second circulation pipe branch 32 are made of rigid materials. The upper part of the first circulation pipe branch 4 is mounted on the first branch guide rail 1 via the first branch guide seat 3, while the upper part of the second circulation pipe branch 32 is mounted on the second branch guide rail 37 via the second branch guide seat 36. The first branch guide rail 1 and the second branch guide rail 37 are located on different vertical side walls of the upper component cavity 2 and can be controlled by a stepper motor located in the upper component cavity 2 to meet the glazing requirements of insulating sleeves of different sizes. During the lifting and lowering process, the first circulation pipe branch 4 and the second circulation pipe branch 32 extend into the inner tubes of the first ceramic body 12 and the second ceramic body 25, respectively, through preset openings on the first movable top plate 11 and the second movable top plate 28, while the ceramic bodies are clamped. They continue to descend to the bottom, and then inject glaze slurry into the inner tubes using the main pressure grouting nozzle and the auxiliary pressure grouting nozzle, respectively. After the glaze slurry has fully filled the inner tubes, the bidirectional pumping device is reversed to draw back the glaze slurry from the main pressure grouting nozzle and the auxiliary pressure grouting nozzle, thus preventing glaze slurry dripping and contamination of the working environment. During this process, the first movable top plate 11 and the second movable top plate 28 remain stationary to ensure the stability of the grouting operation. After grouting is completed, the first circulation pipe branch 4 and the second circulation pipe branch 32 rise and reset under the guidance of the first branch guide rail 1 and the second branch guide rail 37, respectively, to prepare for subsequent glazing operations.

[0036] In another embodiment, the main pressure grouting nozzle and the auxiliary pressure grouting nozzle can be positioned in the middle of the sealing base. Specifically, through holes are made in the middle of the bottom surfaces of the first sealing base 14 and the second sealing base 22, and the main pressure grouting nozzle and the auxiliary pressure grouting nozzle are fixedly assembled in these through holes, with the upper part corresponding to the inner tube of the ceramic body in its clamped state. Using this embodiment, during the glazing operation, there is no need to adjust the height of the first circulation pipeline branch 4 and the second circulation pipeline branch 32. The grouting operation can begin simply by lowering the first movable top plate 11 and the second movable top plate 28 to their corresponding positions. Furthermore, when recovering the glaze, no height adjustment is required; it can be completed directly by the retraction action of the main pressure grouting nozzle and the auxiliary pressure grouting nozzle. This design further simplifies the operation process and improves production efficiency; however, it places higher demands on the sealing performance of the first sealing base 14 and the second sealing base 22.

[0037] In this embodiment, the glazing of the outer tube surfaces of the first ceramic body 12 and the second ceramic body 25 is achieved through a spray glazing method. The specific operating mechanism is a glaze gun assembly located between the main frame 20 and the auxiliary frame 24. This glaze gun assembly includes a glaze gun 27, a robotic arm 26, and a glaze gun base 19. The glaze gun base 19 is fixedly mounted on the platform structure 17, and the robotic arm 26 is mounted on the glaze gun base 19, with the glaze gun 27 connected to its end. The glaze gun base 19 is a height-adjustable base, and the glaze gun 27 is mounted on it. Through programming, it can coordinate with the height-adjustable glaze gun base 19 and the robotic arm 26 to perform multi-degree-of-freedom movements, thereby achieving precise glazing of the first ceramic body 12 and the second ceramic body 25 at different positions.

[0038] The nozzle of the glaze gun 27 adopts a fan-shaped wide-angle glaze nozzle. This design allows the glaze to adhere more evenly to the outer tube surface of the porcelain, improving the glaze spraying quality.

[0039] In addition, to improve the environmental quality during the glazing process, the main frame 20 and the auxiliary frame 24 are respectively equipped with a first arc-shaped side baffle 7 and a second arc-shaped side baffle 33 on the opposite sides of the glaze gun assembly position. The corresponding first arc-shaped side baffle 7 and second arc-shaped side baffle 33 have a conical cross-section, with the large opening facing the glaze gun assembly and the small opening connected to the negative pressure fan on the back side. This design can perform negative pressure suction on the glazing operation area during the glazing gun operation, effectively collecting and discharging glaze mist and dust particles. The collected glaze slurry can flow into the collection container along the tank, which is convenient for subsequent processing and reuse, further improving the utilization rate of materials and environmental performance.

[0040] In this embodiment, the first guide seat 9 and the second guide seat 30 are respectively provided with a rotating shaft support assembly. This rotating shaft support assembly includes a first active rotating seat 10 and a second active rotating seat 29 driven by a motor. The first active rotating seat 10 and the second active rotating seat 29 are respectively assembled and connected to the first movable top plate 11 and the second movable top plate 28, and are fitted with a bearing seat, serving as a first sealing base 14 and a second sealing base 22 as driven rotating seats. After the first ceramic body 12 and the second ceramic body 25 are clamped, the first active rotating seat 10 and the second active rotating seat 29 can be driven by the motor to rotate the first ceramic body 12 and the second ceramic body 25 around their own axis. This design allows the glaze gun 27 to reciprocate during the glazing process, driven by the robotic arm 26, in conjunction with the rotation of the ceramic body, ensuring that the glaze slurry can evenly cover the entire outer surface of the ceramic body, avoiding glazing dead zones, and further improving the glazing quality. Meanwhile, before the glazing operation begins, the operator can set parameters such as the movement trajectory, spraying speed and glaze flow rate of the glaze gun 27 through the control system. Then the glaze gun assembly can automatically carry out the glazing operation according to the preset program to adapt to the glazing requirements of insulating sleeves of different shapes and sizes, so as to cooperate with the glaze gun 27 to carry out glazing operations in all directions without dead angles, ensuring that the glaze layer is uniform and the glaze surface is smooth.

[0041] In this embodiment, the glazing system first extends the outward boom 13 to the unloading position, then hoists the first ceramic body 12 and places it on the surface of the first sealing base 14 after calibration. Then, the outward boom 13 retracts and enters the working position. In the working position, the first movable top plate 11 moves downward and clamps and fixes the first ceramic body 12.

[0042] At this time, the first circulation pipeline branch 4, guided by the first branch guide rail 1, descends into the inner tube of the first ceramic body 12, and injects glaze slurry into the inner tube through the main pressure grouting nozzle. After the glaze slurry is fully filled, the main pressure grouting nozzle retracts the glaze slurry to prevent dripping; after glazing is completed, the first circulation pipeline branch 4 rises back to its original position. Simultaneously with the glazing operation, the glaze gun assembly begins to work. Driven by the robotic arm 26, the glaze gun 27 evenly sprays glaze onto the outer tube surface of the first ceramic body 12. During the glazing process, the first active rotating seat 10 drives the first ceramic body 12 to rotate around its own axis, ensuring uniform glaze coverage until the glazing operation is completed.

[0043] After the glazing of the first ceramic body 12 is completed, the outward-extending boom 13 extends again, moving the glazed first ceramic body 12 to the unloading position. At this time, the operator can lift and remove it to replace the new first ceramic body 12 to be glazed. During this process, the second ceramic body 25 in the auxiliary working position is glazed through the switching of the three-way valve and the pre-programming of the glaze gun.

[0044] Once the new first ceramic body 12 is placed on the first sealed base 14 and calibrated, the outward-extending boom 13 retracts, and the first movable top plate 11 moves down to clamp and fix it in place. Then, a new round of glazing and spraying operations begins. Simultaneously, the second ceramic body 25, which has already been glazed, is released from its clamped position, awaiting removal by the operator. Through this parallel operation method, the system maximizes the use of time and resources, significantly improving production efficiency.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the invention. Furthermore, it should be understood that after reading the technical content of this invention, those skilled in the art can make various alterations, modifications, and / or variations to the invention, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A dual-station glazing system for insulating sleeves, characterized in that, The system host includes a main frame, an auxiliary frame, a glazing system, and a spraying system. The main frame is equipped with a movable clamping fixture, which is mounted on an outward-extending boom. The movable clamping fixture can switch the position of the ceramic body between the working position and the unloading position through the outward and inward movements of the outward-extending boom. The auxiliary frame is located next to the main frame, and an operating space is reserved between them. The auxiliary frame is equipped with a fixed clamping fixture. Both the movable and fixed clamping fixtures are equipped with clamping units for clamping the ceramic body of the insulating sleeve. The clamping units on the movable clamping fixture are used to clamp ceramic bodies of large-sized insulating sleeves, while the clamping units on the fixed clamping fixture are used to clamp ceramic bodies of small and medium-sized insulating sleeves. Both the movable clamping fixture and the fixed clamping fixture are equipped with a sealing base at the bottom. The sealing base can seal the bottom surface of the ceramic body in the clamping state. The glazing system includes an glaze container and a circulation pipeline. One end of the circulation pipeline is connected to the glaze container, and the other end is connected to two branches via a tee with a reversing valve. The two branches are respectively connected to a main pressure grouting nozzle and an auxiliary pressure grouting nozzle. Both the main pressure grouting nozzle and the auxiliary pressure grouting nozzle are bidirectional nozzles. The main pressure grouting nozzle is inserted into the inner ceramic tube of a large-size insulating sleeve in the clamped state, and the auxiliary pressure grouting nozzle is inserted into the inner ceramic tube of a small-to-medium-size insulating sleeve in the clamped state. The glazing system includes a glaze gun, a glaze container, and a glaze supply pipeline. The glaze gun and the glaze container are connected by the glaze supply pipeline. The glaze gun is mounted on a robotic arm, which is located in the operating space. Through the movement of the robotic arm, the glaze gun can switch working positions and perform glazing operations between the main frame and the auxiliary frame. The movable clamping fixture and the fixed clamping fixture are respectively mounted on the main frame and the auxiliary frame via rotating bases. Through the rotating shaft support, the ceramic body mounted on the movable clamping fixture and the fixed clamping fixture can rotate around its own axis to cooperate with the glaze gun for glazing operation on the outer tube surface.

2. The dual-station glazing system for insulating sleeves according to claim 1, characterized in that, The outer diameter of the small-to-medium-sized insulating sleeve is 50% to 90% of the outer diameter of the large-sized insulating sleeve, and the height of the small-to-medium-sized insulating sleeve is 40% to 80% of the height of the large-sized insulating sleeve.

3. The dual-station glazing system for insulating sleeves according to claim 1, characterized in that, The main frame and the auxiliary frame are mounted on a platform structure. An overhead structure cavity is provided at the bottom of the platform structure. The driving element, glaze container and circulation pipeline of the glazing system, as well as the driving element, glaze container and glaze supply pipeline of the spraying system, are located in the overhead structure cavity.

4. The dual-station glazing system for insulating sleeves according to claim 1, characterized in that, The outreach boom is driven and controlled by a stepper motor.

5. The dual-station glazing system for insulating sleeves according to claim 1, characterized in that, Both the movable clamping fixture and the fixed clamping fixture use end-face clamping structures for their clamping operations. The end-face clamping structure includes a movable top plate that is disposed opposite to the sealing base. The movable top plate is disposed on the vertical guide structure and can be driven by external force to move up and down along the vertical guide structure to cooperate with the sealing base to clamp and fix the ceramic body at the end face.

6. The dual-station glazing system for insulating sleeves according to claim 5, characterized in that, The movable clamping fixture includes an L-shaped bracket, which is mounted on the outward extension arm on the back side of the vertical side, and the vertical guide structure is provided on the front side of the vertical side. The movable top plate is mounted on the vertical guide frame, and the sealing base is mounted on the horizontal side surface of the L-shaped bracket.

7. The dual-station glazing system for insulating sleeves according to claim 1, characterized in that, The main frame and the auxiliary frame are provided with arc-shaped side baffles on opposite sides of the glaze gun setting position. The arc-shaped side baffles have a cone-shaped cross section and are connected to a negative pressure fan on the back side to perform negative pressure suction on the glaze spraying area during the glaze gun spraying operation.

8. The dual-station glazing system for insulating sleeves according to claim 1, characterized in that, The main pressure grouting nozzle and the auxiliary pressure grouting nozzle are located at the bottom of the feed pipe. During the grouting operation, the feed pipe is inserted into the inner tube of the ceramic body from the top until the main pressure grouting nozzle is in contact with the surface of the sealing base.

9. The dual-station glazing system for insulating sleeves according to claim 1, characterized in that, The main pressure grouting nozzle and the auxiliary pressure grouting nozzle are located in the middle of the sealing base, with the upper part corresponding to the inner tube of the ceramic body in the clamping state.

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