Automatic finishing system for fire-resistant engineering plastics

By designing an automatic trimming system, the problems of protrusions and flash after demolding cylindrical engineering plastics were solved, achieving automated trimming and dust control, improving safety and efficiency, and reducing costs.

CN121798475APending Publication Date: 2026-04-07NANTONG HAILANDE MASCH CO LTD
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Patent Information

Application Number
CN202311088509.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-08-28
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

In existing technologies, cylindrical engineering plastics are prone to protrusions or flash on the outer surface after demolding. Manual repair is inefficient and poses safety hazards, affecting the product's appearance and increasing costs.

Method used

Design an automated dressing system for fire-resistant engineering plastics, including a grinding table, grinding belt, suction machine and water gun, to achieve automated dressing and dust control through negative pressure adsorption, grinding and dust absorption.

Benefits of technology

It achieves automated polishing without manual operation, avoiding the safety hazards and costs of manual finishing, ensuring polishing accuracy, and suppressing problems such as dust flying and excessive temperature.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The automatic finishing system comprises a machine table and a finishing system and is characterized in that an operation table is fixed to the upper end face of the machine table, a grinding table is fixed to the center of the upper end of the operation table, the grinding table is hollow, a plurality of thin holes are formed in the upper end of the grinding table, and the thin holes are communicated with the grinding table. A suction machine is arranged in the grinding table, one end of the grinding table is sleeved with a discharging pipe, a water tank is arranged in the machine table, a water pump is arranged in the water tank, one end of the water pump is sleeved with a water pipe, and the other end of the water pipe is sleeved with a water gun. And the water gun is fixed to the position, located on one side of the grinding table, of the upper end face of the machine table.
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Description

Technical Field

[0001] This invention relates to the field of workpiece processing technology, specifically to an automatic dressing system for fire-resistant engineering plastics. Background Technology

[0002] After demolding cylindrical engineering plastics, defects such as protrusions or flash may appear on the outer surface due to mold or other factors. These defects typically require manual removal using tools, resulting in high labor costs, low efficiency, and the risk of injury from tools during the process. Furthermore, manual work easily leaves fingerprints and other stains on the plastic surface, affecting the appearance of the engineering plastic product, and requiring additional cleaning afterwards, further increasing costs and making it impractical. Therefore, it is essential to design an automated dressing system for refractory engineering plastics that automatically grinds the outer wall of workpieces and effectively suppresses dust. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic trimming system for fire-resistant engineering plastics to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an automatic trimming system for refractory engineering plastics, comprising a machine base and a trimming system, characterized in that: an operating table is fixed on the upper surface of the machine base, a grinding table is fixed at the center of the upper end of the operating table, the grinding table is hollow, a plurality of fine holes are opened at the upper end of the grinding table, baffles are slidably connected in the plurality of fine holes, a suction machine is installed inside the grinding table, a discharge pipe is sleeved at one end of the grinding table, a water tank is installed inside the machine base, a water pump is installed in the water tank, a water pipe is sleeved at one end of the water pump, a water gun is sleeved at the other end of the water pipe, and the water gun is fixed on the upper surface of the machine base located on one side of the grinding table.

[0005] According to the above technical solution, a telescopic rod is fixed to one side of the upper end of the operating table. A housing is welded to the top of the telescopic rod. A motor is installed inside the housing. A rotating shaft is sleeved at the bottom end of the motor. An air pump is installed inside the rotating shaft. A gripper is installed at the bottom end of the rotating shaft.

[0006] According to the above technical solution, a drive motor is provided on both sides of the upper end of the machine platform, and a grinding belt is provided on the outer side of the output end of the two drive motors. Grinding blocks are slidably connected on both sides of the upper end of the grinding table, and the grinding belt passes through the two grinding blocks.

[0007] According to the above technical solution, the correction system includes a pretreatment subsystem, an abrasive subsystem, and a dust removal subsystem; The pretreatment subsystem is used to perform preliminary treatment on the current workpiece, the abrasive subsystem is used to grind the burrs and protrusions on the surface of the current workpiece, and the dust removal subsystem is used to absorb the dust particles generated during the grinding process.

[0008] According to the above technical solution, the pretreatment subsystem includes an adsorption module, the abrasive subsystem includes a pressurization module, and the dust removal subsystem includes a suction module; The adsorption module is used to start the vacuum pump to generate negative pressure suction at the bottom of the rotating shaft. The operator places one end of the workpiece against the bottom of the rotating shaft to fix the workpiece at the bottom of the rotating shaft, and the auxiliary gripper holds it. The pressurization module is used to adjust the output power of the vacuum pump to increase the adsorption capacity of the workpiece and prevent the workpiece from falling off during the grinding process. The suction module is used to start the suction pump to absorb dust and powder through the air holes.

[0009] According to the above technical solution, the adsorption module includes a clamping submodule, the pressurization module includes a transmission submodule, and the suction module includes an adjustment submodule and an extraction submodule. The clamping submodule is used to move the two grinding blocks so that they run relative to each other until they contact the outer wall of the workpiece. The transmission submodule is used to start the two drive motors so that the grinding belt can be driven to grind the bottom of the workpiece. The extraction submodule is used to start the water pump to extract water from the water tank.

[0010] According to the above technical solution, the clamping submodule includes a driving unit, the transmission submodule includes a telescopic unit and a control unit, the adjustment submodule includes an opening and closing unit, and the extraction submodule includes a spraying unit. The drive unit is used to start the motor to drive the rotating shaft and the workpiece adsorbed at the bottom of the rotating shaft to rotate. The telescopic unit is used to control the telescopic rod to move up and down. The adjustment unit is used to adjust the output power of the motor. The opening and closing unit is used to move the baffle to make the fine hole open. The spraying unit is used to control the water gun to spray the extracted water onto the grinding table.

[0011] According to the above technical solution, the specific operation steps of the trimming system are as follows: S1: The operator places the pre-processed plastic workpiece under the rotating shaft, starts the vacuum pump to generate negative pressure suction on the top of the workpiece, and uses the grippers to hold it. Compared with the existing technology that relies solely on grippers to hold it, this avoids deformation of the plastic workpiece due to excessive clamping force. S2: Move the two grinding blocks until they contact the outer wall of the workpiece. At this time, start the motor to drive the rotating shaft and the workpiece below the rotating shaft to rotate. The outer wall of the workpiece will continuously contact the grinding blocks. Use the grinding blocks to grind and eliminate the burrs and protrusions on the outer wall of the workpiece. S3: After the outer wall of the workpiece is polished, start the drive motor to drive the polishing belt for transmission; S4: Control the telescopic rod to move the housing, shaft, and workpiece downwards until the bottom of the workpiece contacts the grinding belt; S5: Move the baffle to open the pores, start the suction machine, and absorb the dust particles produced by grinding through the pores; S6: Start the water pump to draw water from the water tank and spray it out through the water gun. This helps to cool the workpiece during the grinding process at the bottom and prevents dust from flying around.

[0012] According to the above technical solution, in step S1, the vacuum pump is started to perform initial negative pressure adsorption on the top of the workpiece. After step S2 is completed, the output power of the vacuum pump is adjusted in real time according to the moving distance of the grinding block. That is, the final output power of the vacuum pump is inversely proportional to the moving distance of one of the grinding blocks. If the moving distance of the grinding block is short, it means that the current workpiece diameter is large, and relatively speaking, the weight of the workpiece is greater. Therefore, it is not guaranteed that the workpiece will not fall off during the grinding process. The output power of the vacuum pump is increased to provide a stronger attraction for the workpiece with a larger diameter. At the same time, the amount of water pumped from the water tank is directly proportional to the output power of the vacuum pump. That is, the larger the current workpiece diameter, the more burrs and protrusions are generated, and the more dust is generated during the grinding process. Therefore, more water needs to be pumped to meet the cooling and rinsing needs. Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention, by setting up a grinding table, grinding belt, dressing system, etc., realizes the grinding of the outer wall of the demolded cylindrical plastic workpiece without manual operation, and can effectively control the grinding depth, avoiding the problem of reduced workpiece precision caused by excessive manual grinding. At the same time, it can absorb the dust generated during grinding, effectively suppressing dust flying, avoiding environmental pollution and injury to operators. Meanwhile, water spraying is used to cool the workpiece during grinding, preventing the workpiece from softening due to excessive temperature. At the same time, the cooled water is used to rinse the grinding table, cleaning the grinding table in time, and preventing dust accumulation from affecting subsequent grinding. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram illustrating the overall principle of the present invention; Figure 2 This is a schematic diagram of the modules of the present invention; In the diagram: 1. Machine base; 2. Operating table; 3. Discharge pipe; 4. Grinding table; 5. Telescopic rod; 6. Housing; 7. Rotating shaft; 8. Drive motor; 9. Grinding belt; 11. Grinding block. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Please see Figure 1-2 The present invention provides a technical solution: an automatic trimming system for fire-resistant engineering plastics, comprising a machine base 1 and a trimming system, characterized in that: an operating table 2 is fixed on the upper surface of the machine base 1, a grinding table 4 is fixed at the center of the upper end of the operating table 2, the grinding table 4 is hollow, a plurality of fine holes are opened at the upper end of the grinding table 4, baffles are slidably connected in the plurality of fine holes, a suction machine is installed inside the grinding table 4, a discharge pipe 3 is sleeved at one end of the grinding table 4, a water tank is installed inside the machine base 1, a water pump is installed in the water tank, a water pipe is sleeved at one end of the water pump, a water gun is sleeved at the other end of the water pipe, and the water gun is fixed on the upper surface of the machine base 1 on one side of the grinding table 4; A telescopic rod 5 is fixed to one side of the upper end of the operating table 2. A housing 6 is welded to the top of the telescopic rod 5. A motor is installed inside the housing 6. A rotating shaft 7 is sleeved at the bottom of the motor. An air pump is installed inside the rotating shaft 7. A gripper is installed at the bottom of the rotating shaft 7. Both sides of the upper end of the machine base 9 are equipped with drive motors 8, and the output ends of the two drive motors 8 are equipped with grinding belts 9. Both sides of the upper end of the grinding table 4 are slidably connected with grinding blocks 11, and the grinding belts 9 pass through the two grinding blocks 11. The correction system includes a pretreatment subsystem, an abrasive subsystem, and a dust removal subsystem; The pretreatment subsystem is used to perform preliminary treatment on the current workpiece, the abrasive subsystem is used to grind the burrs and protrusions on the surface of the current workpiece, and the dust removal subsystem is used to absorb the dust particles generated during the grinding process. The pretreatment subsystem includes an adsorption module, the abrasive subsystem includes a pressurization module, and the dust removal subsystem includes a suction module. The adsorption module is used to start the vacuum pump to generate negative pressure suction at the bottom of the rotating shaft. The operator places one end of the workpiece against the bottom of the rotating shaft to fix the workpiece at the bottom of the rotating shaft, and the auxiliary gripper holds it. The pressurization module is used to adjust the output power of the vacuum pump to increase the adsorption capacity of the workpiece and prevent the workpiece from falling off during the grinding process. The suction module is used to start the suction pump to absorb dust and powder through the air holes. The adsorption module includes a clamping submodule, the pressurization module includes a transmission submodule, and the suction module includes an adjustment submodule and an extraction submodule. The clamping submodule is used to move the two grinding blocks so that they move relative to each other until they contact the outer wall of the workpiece. The transmission submodule is used to start the two drive motors so that the grinding belt can be driven to grind the bottom of the workpiece. The extraction submodule is used to start the water pump to extract water from the water tank. The clamping submodule includes a drive unit, the transmission submodule includes a telescopic unit and a control unit, the adjustment submodule includes an opening and closing unit, and the extraction submodule includes a spraying unit. The drive unit is used to start the motor to drive the rotating shaft and the workpiece adsorbed at the bottom of the rotating shaft to rotate. The telescopic unit is used to control the telescopic rod to move up and down. The adjustment unit is used to adjust the output power of the motor. The opening and closing unit is used to move the baffle to make the fine hole open. The spraying unit is used to control the water gun to spray the extracted water onto the grinding table. The specific operating steps of the repair system are as follows: S1: The operator places the pre-processed plastic workpiece under the rotating shaft, starts the vacuum pump to generate negative pressure suction on the top of the workpiece, and uses the grippers to hold it. Compared with the existing technology that relies solely on grippers to hold it, this avoids deformation of the plastic workpiece due to excessive clamping force. S2: Move the two grinding blocks until they contact the outer wall of the workpiece. At this time, start the motor to drive the rotating shaft and the workpiece below the rotating shaft to rotate. The outer wall of the workpiece will continuously contact the grinding blocks. Use the grinding blocks to grind and eliminate the burrs and protrusions on the outer wall of the workpiece. S3: After the outer wall of the workpiece is polished, start the drive motor to drive the polishing belt for transmission; S4: Control the telescopic rod to move the housing, shaft, and workpiece downwards until the bottom of the workpiece contacts the grinding belt; S5: Move the baffle to open the pores, start the suction machine, and absorb the dust particles produced by grinding through the pores; S6: Start the water pump to draw water from the water tank and spray it out from the water gun. This helps to cool the workpiece during the grinding process at the bottom and prevents dust from flying around. The above steps enable the grinding of the outer wall of a cylindrical plastic workpiece after demolding, without manual operation. The grinding depth can be effectively controlled, avoiding the problem of reduced workpiece precision caused by excessive manual grinding. At the same time, the grinding process can absorb the dust generated during grinding, effectively suppressing dust flying and avoiding environmental pollution and injury to operators. Spraying water can cool the workpiece during grinding, preventing the workpiece from softening due to excessive temperature. The cooled water can also be used to rinse the grinding table, cleaning the grinding table in time to prevent dust accumulation from affecting subsequent grinding. In step S1, the vacuum pump is started to perform initial negative pressure adsorption on the top of the workpiece. After step S2 is completed, the output power of the vacuum pump is adjusted in real time according to the moving distance of the grinding block. That is, the final output power of the vacuum pump is inversely proportional to the moving distance of one of the grinding blocks. If the moving distance of the grinding block is short, it means that the current workpiece diameter is large, and relatively speaking, the workpiece is heavier. Therefore, it is not guaranteed that the workpiece will not fall off during the grinding process. The output power of the vacuum pump is increased to provide stronger attraction for the workpiece with a larger diameter. At the same time, the amount of water pumped from the water tank is directly proportional to the output power of the vacuum pump. That is, the larger the current workpiece diameter, the more burrs and protrusions are generated, and the more dust is generated during the grinding process. Therefore, more water needs to be pumped to meet the cooling and rinsing needs.

[0016] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0017] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic dressing system for fire-resistant engineering plastics, comprising a machine base (1) and a dressing system, characterized in that: An operating table (2) is fixed on the upper surface of the machine base (1). A grinding table (4) is fixed at the center of the upper end of the operating table (2). The grinding table (4) is hollow. Several small holes are opened at the upper end of the grinding table (4). Baffles are slidably connected in the several small holes. A suction machine is installed inside the grinding table (4). A discharge pipe (3) is sleeved on one end of the grinding table (4). A water tank is installed inside the machine base (1). A water pump is installed in the water tank. A water pipe is sleeved on one end of the water pump. A water gun is sleeved on the other end of the water pipe. The water gun is fixed on the upper surface of the machine base (1) on one side of the grinding table (4).

2. The automatic trimming system for refractory engineering plastics according to claim 1, characterized in that: A telescopic rod (5) is fixed on one side of the upper end of the operating table (2). A housing (6) is welded to the top of the telescopic rod (5). A motor is installed inside the housing (6). A rotating shaft (7) is sleeved at the bottom of the motor. An air pump is installed inside the rotating shaft (7). A gripper is installed at the bottom of the rotating shaft (7).

3. The automatic trimming system for refractory engineering plastics according to claim 2, characterized in that: Both sides of the upper end of the machine base (9) are provided with drive motors (8), and the output ends of the two drive motors (8) are provided with grinding belts (9). Both sides of the upper end of the grinding table (4) are slidably connected with grinding blocks (11), and the grinding belts (9) pass through the two grinding blocks (11).

4. The automatic trimming system for refractory engineering plastics according to claim 3, characterized in that: The correction system includes a pretreatment subsystem, an abrasive subsystem, and a dust removal subsystem; The pretreatment subsystem is used to perform preliminary treatment on the current workpiece, the abrasive subsystem is used to grind the burrs and protrusions on the surface of the current workpiece, and the dust removal subsystem is used to absorb the dust particles generated during the grinding process.

5. An automatic trimming system for refractory engineering plastics according to claim 4, characterized in that: The pretreatment subsystem includes an adsorption module, the abrasive subsystem includes a pressurization module, and the dust removal subsystem includes a suction module. The adsorption module is used to start the vacuum pump to generate negative pressure suction at the bottom of the rotating shaft. The operator places one end of the workpiece against the bottom of the rotating shaft to fix the workpiece at the bottom of the rotating shaft, and the auxiliary gripper holds it. The pressurization module is used to adjust the output power of the vacuum pump to increase the adsorption capacity of the workpiece and prevent the workpiece from falling off during the grinding process. The suction module is used to start the suction pump to absorb dust and powder through the air holes.

6. The automatic trimming system for refractory engineering plastics according to claim 5, characterized in that: The adsorption module includes a clamping submodule, the pressurization module includes a transmission submodule, and the suction module includes an adjustment submodule and an extraction submodule. The clamping submodule is used to move the two grinding blocks so that they run relative to each other until they contact the outer wall of the workpiece. The transmission submodule is used to start the two drive motors so that the grinding belt can be driven to grind the bottom of the workpiece. The extraction submodule is used to start the water pump to extract water from the water tank.

7. An automatic trimming system for refractory engineering plastics according to claim 6, characterized in that: The clamping submodule includes a drive unit, the transmission submodule includes a telescopic unit and a control unit, the adjustment submodule includes an opening and closing unit, and the extraction submodule includes a spraying unit. The drive unit is used to start the motor to drive the rotating shaft and the workpiece adsorbed at the bottom of the rotating shaft to rotate. The telescopic unit is used to control the telescopic rod to move up and down. The adjustment unit is used to adjust the output power of the motor. The opening and closing unit is used to move the baffle to make the fine hole open. The spraying unit is used to control the water gun to spray the extracted water onto the grinding table.

8. An automatic trimming system for refractory engineering plastics according to claim 7, characterized in that: The specific operating steps of the trimming system are as follows: S1: The operator places the pre-processed plastic workpiece under the rotating shaft, starts the vacuum pump to generate negative pressure suction on the top of the workpiece, and uses the grippers to hold it. Compared with the existing technology that relies solely on grippers to hold it, this avoids deformation of the plastic workpiece due to excessive clamping force. S2: Move the two grinding blocks until they contact the outer wall of the workpiece. At this time, start the motor to drive the rotating shaft and the workpiece below the rotating shaft to rotate. The outer wall of the workpiece will continuously contact the grinding blocks. Use the grinding blocks to grind and eliminate the burrs and protrusions on the outer wall of the workpiece. S3: After the outer wall of the workpiece is polished, start the drive motor to drive the polishing belt for transmission; S4: Control the telescopic rod to move the housing, shaft, and workpiece downwards until the bottom of the workpiece contacts the grinding belt; S5: Move the baffle to open the pores, start the suction machine, and absorb the dust particles produced by grinding through the pores; S6: Start the water pump to draw water from the water tank and spray it out through the water gun. This helps to cool the workpiece during the grinding process at the bottom and prevents dust from flying around.

9. An automatic trimming system for refractory engineering plastics according to claim 8, characterized in that: In step S1, the vacuum pump is started to perform initial negative pressure adsorption on the top of the workpiece. After step S2 is completed, the output power of the vacuum pump is adjusted in real time according to the moving distance of the grinding block. That is, the final output power of the vacuum pump is inversely proportional to the moving distance of one of the grinding blocks. If the moving distance of the grinding block is short, it means that the diameter of the current workpiece is large, and the weight of the workpiece is relatively large. Therefore, it is not guaranteed that the workpiece will not fall off during the grinding process. The output power of the vacuum pump is increased to provide a stronger attraction for the workpiece with a larger diameter. At the same time, the amount of water pumped from the water tank is directly proportional to the output power of the vacuum pump. That is, the larger the diameter of the current workpiece, the more burrs and protrusions are generated, and the more dust is generated during the grinding process. Therefore, more water needs to be pumped to meet the cooling and rinsing needs.