Edge trimmer for bathtub production and processing

By combining annular air curtain and liquid adsorption, the problem of dust diffusion and splashing during the cutting process of ceramic bathtubs is solved, thereby improving safety and cleanliness and ensuring product quality and processing precision.

CN121403574AInactive Publication Date: 2026-01-27连云港森伟玻璃钢制品有限公司
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Patent Information

Application Number
CN202511790305.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-01
Publication Date
2026-01-27
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The fine dust generated during the cutting process of traditional ceramic bathtubs is easily dispersed, which can harm the health of operators, contaminate equipment and increase cleaning and maintenance costs. At the same time, the splashing particles may cause skin damage.

Method used

The system employs a combination of annular air curtain and liquid adsorption. The annular air curtain prevents dust diffusion and captures fine particles, while the liquid adsorption prevents dust diffusion and reduces temperature. Combined with airflow thrust, the dust is blown outward, and the jet duct forms a reverse air curtain to block splashing particles.

Benefits of technology

It effectively reduces dust concentration in the workshop, reduces cleaning and maintenance costs, improves safety and product quality, prevents dust adhesion and splashing injuries, and ensures product appearance and processing precision.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of bathtub edge cutting, in particular to an edge cutting machine for bathtub production and processing, which comprises an outer cover, a sliding rail is mounted in the outer cover, a fixing seat is slidably arranged at the upper end of the sliding rail, an electric sliding rail is slidably arranged at the upper end of the fixing seat, and two groups of sliding seats are slidably arranged in the electric sliding rail. Electric push rods are installed at one ends of the two sets of sliding seats correspondingly, the output ends of the electric push rods are connected with supporting plates, cutting blades are rotationally arranged at the upper ends of the supporting plates, and an annular pipe is installed at the upper end of the interior of the outer cover. The dust concentration in workshop air is reduced, pollution of dust to precision parts of production equipment is reduced, the follow-up workshop cleaning and maintaining cost is reduced, meanwhile, the air curtain can effectively block fine ceramic particles splashed in the cutting process, the particles splashed at a high speed are prevented from hurting the skin and the like of operators, and the safety of the operation process is improved.
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Description

Technical Field

[0001] This invention relates to the field of bathtub edge trimming technology, specifically to an edge trimming machine for bathtub production and processing. Background Technology

[0002] With the upgrading and iteration of the bathroom industry, the materials of bathtub products are becoming increasingly diversified. The mainstream products cover ceramic, acrylic, artificial stone, etc. Among them, ceramic bathtubs occupy an important market share due to their durability and easy cleaning, while acrylic bathtubs have become the mainstream choice in the low-end and mid-range markets due to their advantages of being lightweight and having flexible shapes. The cutting process of traditional ceramic bathtubs generates a large amount of fine dust. Because the dust particles are small and easy to float, they can easily spread into the workshop environment, causing the dust concentration in the working environment to exceed the standard, which can harm the respiratory health of operators. In addition, the dust can also adhere to the outer wall of the bathtub or the surface of equipment parts, increasing the cost of subsequent cleaning and maintenance. Summary of the Invention

[0003] This invention uses an annular air curtain to intercept fine dust generated during ceramic cutting, preventing dust from spreading into the workshop environment, reducing the dust concentration in the workshop air, reducing dust pollution to precision parts of production equipment, and lowering subsequent workshop cleaning and maintenance costs. At the same time, the air curtain can effectively block small ceramic particles that splash during the cutting process, preventing high-speed splashing particles from causing damage to the skin of operators and improving the safety of the operation process.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an edge trimming machine for bathtub production and processing, comprising an outer cover, a slide rail installed inside the outer cover, a fixed seat sliding on the upper end of the slide rail, an electric slide rail sliding on the upper end of the fixed seat, two sets of sliding blocks sliding inside the electric slide rail, an electric push rod installed at one end of each of the two sets of sliding blocks, a support plate connected to the output end of the electric push rod, and a cutting blade rotatably mounted on the upper end of the support plate; An annular tube is installed at the upper part of the inner side of the outer cover. Multiple sets of nozzles are arranged on the outside of the annular tube. Two sets of connecting pipes A for conveying gas into the annular tube are connected to the outside of the annular tube. A valve is installed inside each of the two sets of connecting pipes A. A gear is connected to one end of each of the two sets of valves. A rack is meshed on one side of each of the two sets of gears. The racks of both sets slide synchronously along the vertical direction of the connecting pipes A following the sliding of the electric slide rail. Both sets of connecting pipes A have a sealing groove installed on one side. Both sets of sealing grooves have a rotating shaft inside. Both sets of sealing grooves have a guide pipe installed on the outside. A piston driven by the rotating shaft slides inside the guide pipe. One end of the guide pipe is connected to a storage tank. The other end of the storage tank is connected to a hose. The output end of the hose is located at the upper end of the cutting blade and is fixed to one side of the slide. The outside of connecting pipe A is connected to an air jet groove, which is located on the lower end side of the cutting blade.

[0005] Preferably, cylinders are fixedly connected to both sides of the inner wall of the outer cover, the output end of the cylinders is connected to the electric slide rail, and a motor is installed at one end of the support plate, the output end of the motor is connected to the cutting blade.

[0006] Preferably, the two sets of racks are connected to the output ends of the two sets of electric slide rails, and one end of each of the two sets of valves is fixedly connected to a valve stem, and the other end of each of the two sets of valve stems extends through the connecting pipe A to the outside and is connected to the gear.

[0007] Preferably, multiple sets of blades are fixedly connected to the outer side of the rotating shaft.

[0008] Preferably, a reciprocating screw is fixedly connected to one end of the sealing groove, and the other end of the reciprocating screw extends through the sealing groove into the guide tube.

[0009] Preferably, the guide tube has a guide groove inside, the guide groove is slidably connected to the piston, and the reciprocating screw is connected to the piston ball nut pair.

[0010] Preferably, one end of each of the two sets of guide tubes is connected to a connecting tube B, and the other end of each of the two sets of connecting tubes B extends through the outer cover to the upper end and connects to the storage tank. A one-way valve is provided at the connection between the connecting tube B and the storage tank.

[0011] Preferably, each of the two sets of connecting pipes A has a branch pipe connected to one side, the other end of the branch pipe is connected to the jet chute, and the jet chute is connected to the motor, with a rubber block fixedly connected to one side of the jet chute.

[0012] Compared with the prior art, the beneficial effects of the present invention are: This invention uses an annular air curtain to intercept fine dust generated during ceramic cutting, preventing dust from spreading into the workshop environment, reducing the dust concentration in the workshop air, reducing dust pollution to precision parts of production equipment, and lowering subsequent workshop cleaning and maintenance costs. At the same time, the air curtain can effectively block small ceramic particles that splash during the cutting process, preventing high-speed splashing particles from causing damage to the skin of operators and improving the safety of the operation process.

[0013] This invention prevents dust diffusion through liquid adsorption and, in conjunction with an air curtain, enhances dust capture efficiency, further improving the cleanliness of the working environment, reducing cleaning workload, and minimizing dust interference with subsequent processes. Simultaneously, the liquid's heat absorption and cooling properties quickly remove the large amount of heat generated during cutting, effectively reducing the temperature of the cutting area and preventing deformation issues such as softening or warping of the acrylic bathtub edges due to high temperatures. This ensures the flatness and processing precision of the bathtub edges and improves product qualification rates.

[0014] This invention uses an outward-applied airflow to quickly blow away the dust generated during cutting, reducing the amount of dust adhering to the outer wall of the bathtub due to the cutting airflow or gravity. This reduces the amount of dust residue on the outer wall of the bathtub, decreases the workload of subsequent cleaning processes, and prevents dust adhesion from affecting the product's appearance, thus improving the surface cleanliness of the bathtub. At the same time, the airflow from the jet channel forms a reverse air curtain, which can apply outward resistance to the splashing particles, reducing the splashing speed and impact force of the particles, and reducing the probability of particles contacting the outer wall of the bathtub. This prevents the outer wall of the bathtub from being bumped and scratched by the particles, ensuring the appearance integrity and surface quality of the bathtub. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is one of the internal structural diagrams of the present invention; Figure 3 This is the second internal structure diagram of the present invention; Figure 4 This is one of the structural diagrams of the present invention; Figure 5 This is a partial structural diagram of the present invention; Figure 6 This is a partial structural cross-sectional view of the present invention; Figure 7 For the present invention Figure 4 Enlarged view of the structure at point A in the middle; Figure 8 For the present invention Figure 5 Enlarged view of the structure at point B in the middle.

[0016] In the diagram: 1. Outer cover; 2. Slide rail; 3. Fixed base; 4. Cylinder; 5. Electric slide rail; 6. Slide seat; 7. Electric actuator; 8. Support plate; 9. Motor; 10. Cutting disc; 11. Rack; 12. Connecting pipe A; 13. Ring pipe; 14. Gear; 15. Sealing groove; 16. Rotating shaft; 17. Blade; 18. Reciprocating screw; 19. Piston; 20. Connecting pipe B; 21. Storage tank; 22. Hose; 23. Branch pipe; 24. Air jet; 25. Rubber block; 26. Guide pipe. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] Reference Figures 1 to 8 The present invention provides an edge trimming machine for bathtub production and processing, including an outer cover 1, a slide rail 2 installed inside the outer cover 1, a fixed seat 3 sliding on the upper end of the slide rail 2, an electric slide rail 5 sliding on the upper end of the fixed seat 3, two sets of slide blocks 6 sliding inside the electric slide rail 5, an electric push rod 7 installed at one end of each of the two sets of slide blocks 6, a support plate 8 connected to the output end of the electric push rod 7, and a cutting blade 10 rotating on the upper end of the support plate 8; An annular pipe 13 is installed at the upper end of the inner casing 1. Multiple sets of nozzles are provided on the outside of the annular pipe 13. Two sets of connecting pipes A12 for conveying gas into the annular pipe 13 are connected to the outside of the annular pipe 13. Valves are provided inside the two sets of connecting pipes A12. Gears 14 are connected to one end of the two sets of valves. Racks 11 are meshed on one side of the two sets of gears 14. The two sets of racks 11 slide synchronously along the connecting pipes A12 in a vertical direction following the sliding of the electric slide rail 5. Both sets of connecting pipes A12 are equipped with sealing grooves 15 on one side. Both sets of sealing grooves 15 have rotating shafts 16 inside. Both sets of sealing grooves 15 are equipped with guide pipes 26 on the outside. Inside the guide pipes 26, there is a piston 19 driven by the rotating shafts 16. One end of the guide pipes 26 is connected to a storage tank 21. The other end of the storage tank 21 is connected to a hose 22. The output end of the hose 22 is located at the upper end of the cutting blade 10 and is fixed to one side of the slide block 6. The outside of the connecting pipes A12 is connected to an air jet 24, which is located on the lower side of the cutting blade 10.

[0019] In an optional embodiment, cylinders 4 are fixedly connected to both sides of the inner wall of the outer cover 1. The output end of the cylinder 4 is connected to the electric slide rail 5. A motor 9 is installed at one end of the support plate 8. The output end of the motor 9 is connected to the cutting blade 10. When using the device, the operator fixes the bathtub at the edge to be cut on the upper end of the fixing base 3. The fixing base 3 is then slid to the center of the outer cover 1 via the slide rail 2. After the bathtub moves to the center of the outer cover 1, the electric slide rail 5 is driven to descend by two sets of cylinders 4. When the electric slide rail 5 descends to be flush with the edge of the bathtub, the two sets of cylinders 4 stop driving the electric slide rail 5 to slide. After the electric slide rail 5 stops descending, the motor 9 drives the cutting blade 10 to rotate. When the motor 9 drives the cutting blade 10 to rotate, the electric push rod 7 pushes the support plate 8 to gradually approach the edge of the bathtub. As the support plate 8 moves, it simultaneously drives the cutting blade 10 and the motor 9 to move. As the support plate 8 moves, the cutting blade 10 gradually contacts the edge of the bathtub, thus cutting off the excess part at the edge of the bathtub.

[0020] In an optional embodiment, the two sets of racks 11 are connected to the output ends of the two sets of electric slide rails 5, and one end of each of the two sets of valves is fixedly connected to a valve stem, and the other end of each of the two sets of valve stems extends through the connecting pipe A12 to the outside and is connected to the gear 14. One end of the connecting pipe A12 is connected to a fan. As described above, when the two sets of cylinders 4 drive the electric slide rail 5 to descend, the two sets of cylinders 4 will synchronously drive the two sets of racks 11 to descend. After the two sets of racks 11 descend, they will drive the two sets of gears 14 to rotate. When the two sets of gears 14 rotate, they will open the valve inside the connecting pipe A12 through the valve stem. After the valve inside the connecting pipe A12 is opened, the gas delivered by the fan will enter the annular pipe 13 through the connecting pipe A12. After the gas enters the annular pipe 13, it will be sprayed downward through multiple sets of nozzles on the outside of the annular pipe 13. When the gas is ejected downwards, it forms an air curtain inside the outer casing 1. When cutting ceramic bathtubs, the air curtain effectively prevents the dust generated during cutting from spreading outwards, and also prevents fine particles from flying outwards and causing injury to workers. Thus, the annular air curtain can intercept the fine dust generated during ceramic cutting, prevent the dust from spreading into the workshop environment, reduce the dust concentration in the workshop air, reduce dust pollution to the precision parts of production equipment, and reduce subsequent workshop cleaning and maintenance costs. At the same time, the air curtain can effectively block the small ceramic particles that fly during the cutting process, preventing high-speed flying particles from causing injury to the skin of operators, and improving the safety of the operation process.

[0021] In an optional embodiment, a plurality of blades 17 are fixedly connected to the outer side of the rotating shaft 16; When the gas is delivered to the inside of the annular pipe 13 through the connecting pipe A12, the gas will drive multiple sets of blades 17 to rotate. When the multiple sets of blades 17 rotate, they will drive the rotating shaft 16 to rotate.

[0022] In an optional embodiment, a reciprocating screw 18 is fixedly connected to one end of the sealing groove 15, and the other end of the reciprocating screw 18 extends through the sealing groove 15 into the guide tube 26. When the rotating shaft 16 rotates, it will drive the reciprocating lead screw 18 to rotate synchronously.

[0023] In an optional embodiment, a guide groove is provided inside the guide tube 26, the guide groove is slidably connected to the piston 19, and the reciprocating screw 18 is connected to the piston 19 ball nut pair; When the reciprocating screw 18 rotates, it drives the piston 19 to reciprocate inside the guide tube 26. During the reciprocating movement of the piston 19, gas is continuously supplied to the inside of the connecting tube B20.

[0024] In an optional embodiment, one end of each of the two sets of guide tubes 26 is connected to a connecting tube B20, and the other end of each of the two sets of connecting tubes B20 extends through the outer cover 1 to the upper end and connects to the storage tank 21. A one-way valve is provided at the connection between the connecting tube B20 and the storage tank 21. The storage tank 21 contains cutting fluid. After gas enters the connecting pipe B20, the connecting pipe B20 delivers the gas to the storage tank 21. Due to the one-way valve, the gas only enters the storage tank 21 and does not cause the cutting fluid in the storage tank 21 to flow back into the connecting pipe B20. After the gas enters the storage tank 21, it compresses the cutting fluid in the storage tank 21 and sends it into the hose 22. When the cutting fluid enters the connecting pipe B20, the connecting pipe B20 sprays the cutting fluid onto the upper surface of the cutting disc 10. Due to the elastic material of the hose 22, it is simultaneously pulled to move as the slide block 6-hole electric slide rail 5 slides. When the cutting fluid is sprayed onto the upper surface of the cutting disc 10, it is effective for ceramic materials. During bathtub cutting, the cutting fluid helps to condense the dust generated during cutting, preventing dust from spreading. When cutting acrylic bathtubs, the cutting fluid effectively reduces the heat generated by the high-speed rotation of the cutting blade 10, thus preventing deformation of the acrylic bathtub edges due to high temperatures. The fluid also prevents dust from spreading through adsorption, and the air curtain further enhances dust capture efficiency, improving the cleanliness of the working environment, reducing cleaning workload, and minimizing dust interference with subsequent processes. At the same time, the fluid's heat absorption and cooling properties quickly remove the large amount of heat generated during cutting, effectively reducing the temperature of the cutting area and preventing deformation problems such as softening or warping of the acrylic bathtub edges due to high temperatures. This ensures the flatness and processing accuracy of the bathtub edges and improves the product qualification rate.

[0025] In an optional embodiment, each of the two sets of connecting pipes A12 is connected to a branch pipe 23 on one side, and the other end of the branch pipe 23 is connected to the jet chute 24. The jet chute 24 is connected to the motor 9, and a rubber block 25 is fixedly connected to one side of the jet chute 24. Because the edge of the bathtub extends outwards, when the cutting blade 10 contacts the edge of the bathtub, the rubber block 25 will also contact the outer wall of the bathtub. When the rubber block 25 contacts the outer wall, the air jet vent 24 will be located inside the edge of the bathtub. At this time, when gas is supplied through the connecting pipe A12, some gas will enter the air jet vent 24. As the gas enters the air jet vent 24, it will be ejected outwards through the rubber block 25. When the gas is ejected outwards, during the cutting process of the cutting blade 10, because the air jet vent 24 blows air in the opposite direction, it will exert an outward force on the dust and debris generated during cutting, thereby reducing the amount of dust adhering to the outer wall of the bathtub and preventing… The flying debris causes bumps and scratches to the outer wall of the bathtub. However, the outward airflow propels the dust generated during cutting outward, reducing the amount of dust adhering to the outer wall due to the cutting airflow or gravity. This reduces the amount of dust residue on the outer wall, decreases the workload of subsequent cleaning processes, and prevents dust adhesion from affecting the product's appearance, thus improving the surface cleanliness of the bathtub. At the same time, the airflow from the jet vent 24 forms a reverse air curtain, which applies outward resistance to the flying debris, reducing the speed and impact of the debris and decreasing the probability of the debris contacting the outer wall of the bathtub. This prevents the outer wall of the bathtub from being bumped and scratched by the debris, ensuring the appearance integrity and surface quality of the bathtub.

[0026] Working principle: When using the device, the operator fixes the bathtub where the edge needs to be cut on the upper end of the fixing base 3. At this time, the fixing base 3 is slid to the center of the outer cover 1 via the slide rail 2. After the bathtub moves to the center of the outer cover 1, the electric slide rail 5 is driven to descend by two sets of cylinders 4. When the electric slide rail 5 descends to be flush with the edge of the bathtub, the two sets of cylinders 4 will stop driving the electric slide rail 5 to slide. After the electric slide rail 5 stops descending, the motor 9 will drive the cutting blade 10 to rotate. When the motor 9 drives the cutting blade 10 to rotate, the electric push rod 7 will push the support plate 8 to gradually approach the edge of the bathtub. At the same time as the support plate 8 moves, the support plate 8 will simultaneously drive the cutting blade 10 and the motor 9 to move. As the support plate 8 moves, the cutting blade 10 will gradually contact the edge of the bathtub, thereby cutting off the excess part at the edge of the bathtub. When the two sets of cylinders 4 drive the electric slide rail 5 to descend, the two sets of cylinders 4 will synchronously drive the two sets of racks 11 to descend. After the two sets of racks 11 descend, the two sets of racks 11 will drive the two sets of gears 14 to rotate. When the two sets of gears 14 rotate, the two sets of gears 14 will open the valve inside the connecting pipe A12 through the valve stem. After the valve inside the connecting pipe A12 is opened, the gas delivered by the fan will enter the annular pipe 13 through the connecting pipe A12. After the gas enters the annular pipe 13, the gas will be sprayed downward through multiple sets of nozzles on the outside of the annular pipe 13. When the gas is sprayed downward through multiple sets of nozzles, the gas will form an air curtain inside the outer cover 1. When gas is delivered to the annular tube 13 through the connecting pipe A12, the gas drives multiple sets of blades 17 to rotate. When the multiple sets of blades 17 rotate, they drive the rotating shaft 16 to rotate. When the rotating shaft 16 rotates, it drives the reciprocating screw 18 to rotate synchronously. When the reciprocating screw 18 rotates, it drives the piston 19 to move back and forth inside the guide tube 26. During the reciprocating movement of the piston 19, gas is continuously delivered to the connecting pipe B20. After the gas enters the connecting pipe B20, it delivers the gas to the storage tank 21. After the gas enters the storage tank 21, it squeezes the cutting fluid inside the storage tank 21 into the hose 22. When the cutting fluid enters the connecting pipe B20, it sprays the cutting fluid onto the upper surface of the cutting disc 10. Because the edge of the bathtub extends outwards by a certain distance, when the cutting blade 10 contacts the edge of the bathtub, the rubber block 25 will also contact the outer wall of the bathtub. When the rubber block 25 contacts the outer wall of the bathtub, the air jet 24 will be located inside the edge of the bathtub. At this time, when the connecting pipe A12 delivers gas, some gas will enter the interior of the air jet 24. When the gas enters the interior of the air jet 24, the gas will be ejected outwards through the rubber block 25. When the gas is ejected outwards, when the cutting blade 10 is cutting, because the air jet 24 blows air in the opposite direction, the air jet 24 will exert an outward force on the dust and debris generated during cutting.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An edge trimming machine for bathtub production and processing, comprising an outer cover (1), characterized in that: The outer cover (1) is equipped with a slide rail (2), a fixed seat (3) slides on the upper end of the slide rail (2), an electric slide rail (5) slides on the upper end of the fixed seat (3), two sets of slide blocks (6) slide inside the electric slide rail (5), an electric push rod (7) is installed at one end of each set of slide blocks (6), a support plate (8) is connected to the output end of the electric push rod (7), and a cutting blade (10) rotates on the upper end of the support plate (8); The upper part of the inner casing (1) is equipped with an annular pipe (13). Multiple sets of nozzles are provided on the outside of the annular pipe (13). Two sets of connecting pipes A (12) for conveying gas into the annular pipe (13) are connected to the outside of the annular pipe (13). Valves are provided inside the two sets of connecting pipes A (12). Gears (14) are connected to one end of the two sets of valves. Racks (11) are meshed on one side of the two sets of gears (14). The racks (11) of the two sets slide synchronously along the vertical direction of the connecting pipes A (12) following the sliding of the electric slide rail (5). Both sets of connecting pipes A (12) are equipped with sealing grooves (15) on one side. Both sets of sealing grooves (15) are equipped with rotating shafts (16) inside. Both sets of sealing grooves (15) are equipped with guide pipes (26) on the outside. A piston (19) driven by the rotating shaft (16) slides inside the guide pipe (26). One end of the guide pipe (26) is connected to a storage tank (21). The other end of the storage tank (21) is connected to a hose (22). The output end of the hose (22) is located at the upper end of the cutting blade (10), and the output end of the hose (22) is fixed on one side of the slide block (6). The outside of the connecting pipe A (12) is connected to an air jet groove (24). The air jet groove (24) is located on one side of the lower end of the cutting blade (10).

2. The edge trimming machine for bathtub production and processing according to claim 1, characterized in that, Cylinders (4) are fixedly connected to both sides of the inner wall of the outer cover (1). The output end of the cylinder (4) is connected to the electric slide rail (5). A motor (9) is installed at one end of the support plate (8). The output end of the motor (9) is connected to the cutting blade (10).

3. The edge trimming machine for bathtub production and processing according to claim 2, characterized in that, The two sets of racks (11) are connected to the output ends of the two sets of electric slide rails (5), and one end of each set of valves is fixedly connected to a valve stem. The other end of each set of valve stems extends through the connecting pipe A (12) to the outside and is connected to the gear (14).

4. An edge trimming machine for bathtub production and processing according to claim 1, characterized in that, Multiple sets of blades (17) are fixedly connected to the outside of the rotating shaft (16).

5. An edge trimming machine for bathtub production and processing according to claim 1, characterized in that, One end of the sealing groove (15) is fixedly connected to a reciprocating screw (18), and the other end of the reciprocating screw (18) extends through the sealing groove (15) into the guide tube (26).

6. An edge trimming machine for bathtub production and processing according to claim 5, characterized in that, The guide tube (26) has a guide groove inside, which is slidably connected to the piston (19), and the reciprocating screw (18) is connected to the piston (19) ball nut pair.

7. An edge trimming machine for bathtub production and processing according to claim 1, characterized in that, One end of each of the two sets of guide tubes (26) is connected to a connecting tube B (20), and the other end of each of the two sets of connecting tubes B (20) extends through the outer cover (1) to the upper end and connects to the storage tank (21). A one-way valve is provided at the connection between the connecting tube B (20) and the storage tank (21).

8. An edge trimming machine for bathtub production and processing according to claim 1, characterized in that, Both sets of connecting pipes A (12) are connected to a branch pipe (23) on one side. The other end of the branch pipe (23) is connected to the jet groove (24), and the jet groove (24) is connected to the motor (9). A rubber block (25) is fixedly connected to one side of the jet groove (24).