Building waterproof material cutting device and cutting method thereof

Abstract

The invention discloses a building waterproof material cutting device. The building waterproof material cutting device comprises a coiled material supporting structure, a cutter cutting structure and a cutting fluid internal line supply structure. The coiled material supporting structure comprises a base, a hollow rotating shaft and a sleeve used for fixing coiled materials, the rotating shaft is horizontally arranged on the upper side of the base, and the sleeve is arranged on the outer side of the rotating shaft in a sleeving mode and can rotate around the rotating shaft; the cutter cutting structure is arranged on one side of the sleeve in a sliding mode, the cutter cutting structure can slide in the direction perpendicular to the sleeve, and the cutter cutting structure can cut the coiled material on the sleeve when sliding in the direction of the sleeve; the cutting fluid inner line supply structure comprises a cutting fluid storage box, a connecting pipe and an inner nozzle, the cutting fluid storage box is arranged at one end of the sleeve, the connecting pipe penetrates through the rotating shaft, one end of the connecting pipe is connected with a fluid outlet of the cutting fluid storage box, and the other end of the connecting pipe penetrates out of the sleeve and then communicates with the inner nozzle; therefore, the cutting quality of the coiled material can be ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of cutting tools, and in particular relates to a building waterproof material cutting device and a cutting method. Background Art

[0002] Building waterproofing membrane is a material used to prevent water penetration and is commonly used in building structures such as roofs, basements, and bridges.

[0003] The structure of the existing building waterproof material cutting device generally includes a rotating roller, a cutting tool and a cutting fluid supply unit for cooling the cutting tool. The cutting fluid supply unit includes a cutting fluid tank, a pipeline and a nozzle. The nozzle is connected to the cutting fluid tank through a pipeline. The nozzle is usually arranged near the cutting tool and can move with the cutting tool. The nozzle can spray the cutting fluid onto the cutting tool during the cutting process, thereby playing a role in lubricating and cooling the tool.

[0004] During the coil cutting process, the friction between the tool and the material will generate heat. The heat generated in this process is not only transferred to the tool, but also conducted to the coil during cutting. For some waterproof coils with high thermal conductivity, the heat generated during cutting will be transmitted to the inside of the cutting material. The existing cutting device sprays cutting fluid on the surface of the tool and the cutting material to cool it down. This can only cool the tool and the surface of the coil and its shallow layer. As the cutting progresses, a large amount of heat is transferred to the inside of the coil, causing the internal material to melt before it comes into contact with the tool. Therefore, when the tool comes into contact with the internal coil, the tool will stick to the tool, which will seriously affect the quality of the cutting surface in the final cutting. Summary of the invention

[0005] The purpose of the present invention is to provide a building waterproof material cutting device and a cutting method thereof, which solves the problem of poor cutting surface quality when cutting existing waterproof coiled materials.

[0006] The technical solution adopted by the present invention is a building waterproof material cutting device, comprising:

[0007] The coil support structure includes a base, a hollow rotating shaft and a sleeve for fixing the coil, wherein the rotating shaft is horizontally arranged on the upper side of the base, and the sleeve is sleeved on the outer side of the rotating shaft and can rotate around the rotating shaft;

[0008] A cutter cutting structure is slidably arranged on one side of the sleeve, and the cutter cutting structure can slide in a direction perpendicular to the sleeve, and when the cutter cutting structure slides in the direction of the sleeve, the coil on the sleeve can be cut;

[0009] The cutting fluid inner line supply structure includes a cutting fluid storage box, a connecting pipe and an inner nozzle. The cutting fluid storage box is arranged at one end of the sleeve. The connecting pipe passes through the rotating shaft and one end of the connecting pipe is connected to the liquid outlet of the cutting fluid storage box. The other end of the connecting pipe passes through the sleeve and is connected to the inner nozzle. The inner nozzle points to the cutting surface of the coil. When cutting, the cutting fluid is sprayed to the inside of the coil through the inner nozzle to cool it down.

[0010] A cutting fluid release unit is also provided between the cutting fluid storage tank and the connecting pipe. The cutting fluid release unit includes a cylindrical pump body, a piston and a piston shaft. The pump body is arranged at one end of the sleeve. The piston is arranged inside the pump body and divides the pump body into a functional chamber and a working chamber. One end of the piston shaft is connected to the piston, and the other end of the piston shaft passes through the functional chamber and then out of the pump body. The liquid inlet of the working chamber is connected to the cutting fluid storage tank, and the liquid outlet of the working chamber is connected to the connecting pipe.

[0011] A transmission unit is also arranged between the piston shaft and the tool cutting structure, and when the tool cutting structure slides close to the sleeve, the piston shaft is driven to slide.

[0012] The tool cutting structure includes a first motor, a first gear rack assembly, a first slider, a tool mounting plate and a tool arranged on a base. The first motor is arranged on the base and its output shaft is parallel to the sleeve. The first gear rack assembly is arranged between the first motor and the first slider. The first slider is arranged on the upper side of the first gear rack assembly and the bases on both sides are slidably connected. Therefore, when the first motor rotates, it can drive the first slider to slide in a direction perpendicular to the sleeve.

[0013] The transmission unit includes a hollow transmission shaft, a first ratchet assembly, a bevel gear transmission group, a crank and a connecting rod. The transmission shaft is connected to the output shaft of the first motor through the first ratchet assembly. When the first motor drives the first slider to move close to the sleeve, it can drive the transmission shaft to rotate in one direction through the first ratchet assembly. The bevel gear transmission group is arranged between the transmission shaft and the crank, so when the transmission shaft rotates, it can drive the crank to rotate through the bevel gear transmission group. One end of the connecting rod is hinged to the crank, and the other end of the connecting rod is connected to the piston shaft.

[0014] The bevel gear transmission includes a first support shaft, a first bevel gear and a second bevel gear. The first support shaft is vertically arranged between the transmission shaft and the crank. The first bevel gear is arranged on the transmission shaft. The second bevel gear is arranged on the first support shaft of the second bevel gear and meshes with the first bevel gear. The crank is arranged at the other end of the first support shaft.

[0015] A return spring is also arranged between the piston and the inner wall of the working chamber, and a pushing structure parallel to the sleeve is also arranged on the outer side of the sleeve, and the coiled material arranged on the sleeve can be driven to slide forward through the pushing structure.

[0016] The pushing structure includes a second support shaft, a transmission belt, a second gear rack assembly, a second ratchet assembly, a second sliding block and a pushing rod. The second support shaft is arranged parallel to the first support shaft, the transmission belt is arranged between the first support shaft and the second support shaft, the second gear rack assembly is arranged between the second support shaft and the second sliding block, and the second ratchet assembly is arranged between the second gear rack assembly and the second support shaft. Therefore, when the second support shaft rotates, it can drive the second gear rack assembly to rotate unidirectionally. The second sliding block is arranged on the upper side of the second gear rack assembly and is slidably connected to the base, and the pushing rod is arranged on the second sliding block.

[0017] The base is also provided with a driving structure for driving the sleeve to rotate, the driving structure includes a second motor and a gear transmission group, the second motor is arranged on the base and its output shaft is parallel to the sleeve, and the gear transmission group is arranged between the output shaft of the second motor and the sleeve.

[0018] A method for cutting building waterproof materials, based on the above-mentioned building waterproof material cutting device, is characterized in that it specifically includes the following methods:

[0019] Fix the coil to be cut on the sleeve;

[0020] Driving the first motor to drive the cutter cutting structure to approach the coil and cut the coil;

[0021] When the cutter cutting structure approaches the coil for cutting, the piston shaft is driven to slide, thereby releasing the cutting fluid in the cutting fluid storage tank and aligning it with the inner cutting position of the coil.

[0022] The beneficial effects of the present invention are:

[0023] The present invention discloses a building waterproof material cutting device. When in use, the coil to be cut is sleeved on a sleeve, and then the cutter cutting structure slides toward the sleeve to cut the coil on the sleeve. While cutting, the cutting fluid can be sprayed toward the inner side of the coil through the connecting pipe and the inner nozzle on the cutting fluid inner line supply structure, and the cutting fluid outlet direction of the inner nozzle is aligned with the cutting surface of the coil. When the cutter does not contact the inner coil, the inner nozzle can spray the cutting fluid on the inner side of the coil to cool it down to avoid the inner coil from melting. Finally, when the cutter cuts the inner coil, it can avoid the cutter sticking. Therefore, normal cutting can be guaranteed by the cutting fluid inner line supply structure. In summary, the present invention can effectively guarantee the cutting quality of the coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a top view of a building waterproof material cutting device of the present invention;

[0025] Figure 2 It is a schematic diagram of a first ratchet assembly on a building waterproof material cutting device of the present invention;

[0026] Figure 3 It is a schematic diagram of a cutting fluid release unit on a building waterproof material cutting device of the present invention.

[0027] In the figure, 1. rotating shaft, 2. sleeve, 3. coil, 4. cutting fluid storage box, 5. connecting pipe, 6. inner nozzle, 7. pump body, 8. piston, 9. piston shaft, 10. functional chamber, 11. working chamber, 12. base, 13. first motor, 14. first gear, 15. transmission shaft, 16. first sliding block, 17. tool mounting plate, 18. tool, 19. connecting rod, 20. first ratchet, 21. first pawl, 22. first support shaft, 23. first bevel gear, 24. second bevel gear, 25. second motor, 26. third gear, 27. fourth gear, 28. return spring, 29. second gear, 30. second support shaft, 31. second sliding block, 32. push rod, 33. crank. DETAILED DESCRIPTION

[0028] The present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection solution of the present invention.

[0029] The structure of the existing building waterproof material cutting device generally includes a rotating roller, a cutting tool and a cutting fluid supply unit for cooling the cutting tool. The cutting fluid supply unit includes a cutting fluid tank, a pipeline and a nozzle. The nozzle is connected to the cutting fluid tank through a pipeline. The nozzle is usually arranged near the cutting tool and can move with the cutting tool. The nozzle can spray the cutting fluid onto the cutting tool during the cutting process, thereby playing a role in lubricating and cooling the tool.

[0030] During the coil cutting process, the friction between the tool and the material will generate heat. The heat generated in this process is not only transferred to the tool, but also conducted to the coil during cutting. For some waterproof coils with high thermal conductivity, the heat generated during cutting will be transmitted to the inside of the cutting material. The existing cutting device sprays cutting fluid on the surface of the tool and the cutting material to cool it down. This can only cool the tool and the surface of the coil and its shallow layer. As the cutting progresses, a large amount of heat is transferred to the inside of the coil, causing the internal material to melt before it comes into contact with the tool. Therefore, when the tool comes into contact with the internal coil, the tool will stick to the tool, which will seriously affect the quality of the cutting surface in the final cutting.

[0031] The present invention discloses a building waterproof material cutting device, such as Figure 1-3As shown, it includes: a coil support structure, a tool cutting structure and a cutting fluid inner line supply structure; wherein the coil support structure includes a base 12, a hollow rotating shaft 1 and a sleeve 2 for fixing the coil 3, the rotating shaft 1 is horizontally arranged on the upper side of the base 12, the sleeve 2 is sleeved on the outer side of the rotating shaft 1 and can rotate around the rotating shaft 1; the tool cutting structure is slidably arranged on one side of the sleeve 2, the tool cutting structure can slide in a direction perpendicular to the sleeve 2, and the tool cutting structure can cut the coil on the sleeve 2 when sliding in the direction of the sleeve 2; the cutting fluid inner line supply structure includes a cutting fluid storage tank 4, a connecting pipe 5 and an inner nozzle 6, the cutting fluid storage tank 4 is arranged at one end of the sleeve 2, the connecting pipe 5 passes through the rotating shaft 1 and one end of the connecting pipe 5 is connected to the liquid outlet of the cutting fluid storage tank 4, the other end of the connecting pipe 5 passes through the sleeve 2 and is connected to the inner nozzle 6, the inner nozzle 6 points to the cutting surface of the coil 3, and the cutting fluid is sprayed to the inner side of the coil 3 through the inner nozzle 6 to cool it down during cutting.

[0032] The present invention discloses a building waterproof material cutting device. When in use, a coil 3 to be cut is sleeved on a sleeve 2. Then, when a tool cutting structure slides toward the sleeve 2, the coil 3 on the sleeve 2 can be cut. While cutting, cutting fluid can be sprayed toward the inner side of the coil through a connecting pipe 5 and an inner nozzle 6 on an inner line supply structure for cutting fluid. The outlet direction of the cutting fluid of the inner nozzle 6 is aligned with the cutting surface of the coil. When the tool does not contact the inner coil, the inner nozzle 6 can spray cutting fluid on the inner side of the coil to cool it down to avoid melting of the inner coil. Finally, when the tool cuts the inner coil, sticking of the tool can be avoided. Therefore, normal cutting can be guaranteed by the inner line supply structure for cutting fluid. In summary, the present invention can effectively guarantee the cutting quality of the coil.

[0033] In order to further facilitate the control of the release of the cutting fluid inside, a cutting fluid release unit is further provided between the cutting fluid storage box 4 and the connecting pipe 5 disclosed in this embodiment. The cutting fluid release unit includes a cylindrical pump body 7, a piston 8 and a piston shaft 9. The pump body 7 is arranged at one end of the sleeve 2, and the piston 8 is arranged inside the pump body 7 and divides the pump body 7 into a functional chamber 10 and a working chamber 11. One end of the piston shaft 9 is connected to the piston 8, and the other end of the piston shaft 9 passes through the functional chamber 10 and then out of the pump body 7. The liquid inlet of the working chamber 11 is connected to the cutting fluid storage box 4, and the liquid outlet of the working chamber 11 is connected to the connecting pipe 5. Therefore, when the piston shaft 9 is pulled to slide along the axial direction of the pump body 7, the release of the cutting can be controlled.

[0034] In order to automatically control the inner cutting fluid during cutting, a transmission unit is provided between the piston shaft 9 and the tool cutting structure disclosed in this embodiment, and when the tool cutting structure slides close to the sleeve 2, the piston shaft 9 is driven to slide.

[0035] Specifically, the tool cutting structure disclosed in this embodiment includes a first motor 13, a first gear 14, a first rack, a first slider 16, a tool mounting plate 17 and a tool 18 arranged on a base 12. The first gear 14 and the first rack constitute a first gear and rack assembly. The first motor 13 is arranged on the base 12 and its output shaft is parallel to the sleeve 2. The first gear 14 is arranged on the output shaft of the first motor 13. The first slider 16 is arranged on the upper side of the first gear 14 and its two sides are slidably connected to the base 12. A first rack is also arranged on the side of the first slider 16 close to the first gear 14. The first rack is meshed with the first gear 14. When the first gear 14 rotates, it can drive the first slider 16 to slide in a direction perpendicular to the sleeve 2; thereby realizing the cutting of the coil 3.

[0036] The specific transmission unit includes a hollow transmission shaft 15, a first ratchet assembly, a bevel gear transmission group, a crank 33 and a connecting rod 19. The transmission shaft 15 is connected to the output shaft of the first motor 13 through the first ratchet assembly. When the first motor 13 drives the first slider 16 to approach the sleeve 2, it can drive the transmission shaft 15 to rotate in one direction through the first ratchet assembly. The bevel gear transmission group is arranged between the transmission shaft 15 and the crank 33. Therefore, when the transmission shaft 15 rotates, it can drive the crank 33 to rotate through the bevel gear transmission group. One end of the connecting rod 19 is hinged to the crank 33, and the other end of the connecting rod 19 is connected to the piston shaft 9.

[0037] The first ratchet assembly includes a first ratchet 20 disposed on the inner ring of the transmission shaft, and also includes a first pawl 21 disposed on the transmission shaft 15. The first pawl 21 is engaged with the first ratchet 20; thus, the transmission shaft 15 can achieve unidirectional rotation.

[0038] The bevel gear transmission includes a first support shaft 22, a first bevel gear 23 and a second bevel gear 24. The first support shaft 22 is vertically arranged between the transmission shaft 15 and the crank 33. The first bevel gear 23 is arranged on the transmission shaft 15. The second bevel gear 24 is arranged on the second bevel gear first support shaft 22 and meshes with the first bevel gear 23. The crank 33 is arranged at the other end of the first support shaft 22.

[0039] When each cutting is completed, the coil needs to be pushed forward a certain distance. Therefore, a reset spring 28 is also provided in the working chamber 11 disclosed in the present embodiment, and a pushing structure parallel to it is also provided on the outer side of the sleeve 2. The pushing structure includes a second support shaft 30, a second gear 29, a second sliding block 31, a second rack, a pushing rod 32, a second ratchet assembly and a transmission belt. The second gear 29 and the second rack constitute a second gear-rack assembly. The second support shaft 30 is arranged parallel to the first support shaft 22, and the transmission belt is arranged between the first support shaft 22 and the second support shaft 30. The second gear 29 is sleeved on the second support shaft 30, and the second ratchet assembly is arranged between the second gear 29 and the second support shaft 30. When the second support shaft 30 rotates, it can drive the second gear 29 to rotate unidirectionally. The second sliding block 31 is arranged on the upper side of the second gear 29 and is slidably connected to the base 1. The second rack is arranged on the side of the second sliding block 31 and meshes with the second gear 29. When the second gear 29 rotates, it can drive the second sliding block 31 to slide in a direction parallel to the sleeve 2. The reset spring 28 is connected between the two side walls of the working chamber 11. When the reset spring 28 is reset, it drives the piston 8 and the piston shaft 9 to slide in turn, thereby driving the connecting rod 19, the crank 33 and the first support shaft 22 to move. Finally, when the first support shaft 22 moves, the second support shaft 30 is driven to rotate through the transmission belt. Finally, the second ratchet assembly can drive the second gear 29 to rotate unidirectionally. When the second gear 29 rotates, it drives the second rack meshing with it to drive the second sliding block 31 to slide in a direction parallel to the sleeve 2. Because the push rod 32 is vertically arranged on the second sliding block 31 and points in the direction of the coil, the second sliding block 31 can push the coil forward a distance through the push rod 32 when it slides, so as to facilitate the next cutting.

[0040] The base 12 is also provided with a driving structure for driving the sleeve 2 to rotate, and the driving structure includes a second motor 25 and a gear transmission group. The second motor 25 is provided on the base 12 and its output shaft is parallel to the sleeve 2. The gear transmission group is provided between the output shaft of the second motor 25 and the sleeve 2. Specifically, the gear transmission group includes a third gear 26 provided on the output shaft of the second motor 25, and a fourth gear 27 meshing with the third gear 26 is sleeved on the sleeve 2. Therefore, when the second motor 25 rotates, the sleeve 2 can be driven to rotate through the gear transmission group, so that the coil mounted on the sleeve 2 rotates, so as to facilitate cutting.

[0041] The present invention also discloses a method for cutting building waterproof materials, based on the above-mentioned building waterproof material cutting device, which specifically includes the following method:

[0042] Fix the coil 3 to be cut on the sleeve 2;

[0043] The first motor 13 is driven to drive the cutter cutting structure to approach the coil 3 and cut the coil 3;

[0044] When the cutter cutting structure approaches the coil 3 for cutting, the piston shaft 9 is driven to slide, thereby releasing the cutting fluid in the cutting fluid storage box 4 and aligning with the inner cutting position of the coil 3 .

[0045] The embodiments described above are only preferred specific implementation modes of the present invention, and the protection scope of the present invention is not limited thereto. Any simple changes or equivalent replacements of the technical solutions that can be obviously obtained by any technician familiar with the field within the technical scope disclosed in the present invention belong to the protection scope of the present invention.

Claims

1. A building waterproof material cutting device, characterized in that: include: A coiled material support structure, comprising a base (12), a hollow rotating shaft (1) and a sleeve (2) for fixing a coiled material (3), wherein the rotating shaft (1) is horizontally arranged on the upper side of the base (12), and the sleeve (2) is sleeved on the outer side of the rotating shaft (1) and can rotate around the rotating shaft (1); A knife cutting structure is slidably arranged on one side of the sleeve (2), the knife cutting structure can slide in a direction perpendicular to the sleeve (2), and when the knife cutting structure slides in the direction of the sleeve (2), it can cut the coiled material (3) on the sleeve (2); The cutting fluid inner line supply structure comprises a cutting fluid storage box (4), a connecting pipe (5) and an inner nozzle (6), wherein the cutting fluid storage box (4) is arranged at one end of the sleeve (2), the connecting pipe (5) passes through the rotating shaft (1) and one end of the connecting pipe (5) is connected to the liquid outlet of the cutting fluid storage box (4), and the other end of the connecting pipe (5) passes through the sleeve (2) and is connected to the inner nozzle (6), and the inner nozzle (6) points to the cutting surface of the coil (3), and when cutting, the cutting fluid is sprayed to the inner side of the coil (3) through the inner nozzle (6) to cool it down.

2. A building waterproof material cutting device according to claim 1, characterized in that: A cutting fluid release unit is also provided between the cutting fluid storage tank (4) and the connecting pipe (5), and the cutting fluid release unit comprises a cylindrical pump body (7), a piston (8) and a piston shaft (9); the pump body (7) is provided at one end of the sleeve (2); the piston (8) is provided inside the pump body (7) and divides the pump body (7) into a functional chamber (10) and a working chamber (11); one end of the piston shaft (9) is connected to the piston (8); the other end of the piston shaft (9) passes through the functional chamber (10) and then passes out of the pump body (7); the liquid inlet of the working chamber (11) is communicated with the cutting fluid storage tank (4), and the liquid outlet of the working chamber (11) is communicated with the connecting pipe (5).

3. A building waterproof material cutting device according to claim 2, characterized in that: A transmission unit is also provided between the piston shaft (9) and the cutter cutting structure, and when the cutter cutting structure slides close to the sleeve (2), the piston shaft (9) is driven to slide.

4. A building waterproof material cutting device according to claim 3, characterized in that: The tool cutting structure comprises a first motor (13) arranged on the base (12), a first gear rack assembly, a first slider (16), a tool mounting plate (17) and a tool (18), wherein the first motor (13) is arranged on the base (12) and its output shaft is parallel to the sleeve (2), the first gear rack assembly is arranged between the first motor (13) and the first slider (16), the first slider (16) is arranged on the upper side of the first gear rack assembly and the base (12) is slidably connected on both sides thereof, so that when the first motor (13) rotates, it can drive the first slider (16) to slide in a direction perpendicular to the sleeve (2).

5. A building waterproof material cutting device according to claim 4, characterized in that: The transmission unit comprises a hollow transmission shaft (15), a first ratchet assembly, a bevel gear transmission group, a crank (33) and a connecting rod (19); the transmission shaft (15) is connected to the output shaft of the first motor (13) through the first ratchet assembly; when the first motor (13) drives the first slider (16) to move close to the sleeve (2), the transmission shaft (15) can be driven to rotate in one direction through the first ratchet assembly; the bevel gear transmission group is arranged between the transmission shaft (15) and the crank (33); therefore, when the transmission shaft (15) rotates, the crank (33) can be driven to rotate through the bevel gear transmission group; one end of the connecting rod (19) is hinged to the crank (33), and the other end of the connecting rod (19) is connected to the piston shaft (9).

6. A building waterproof material cutting device according to claim 5, characterized in that: The bevel gear transmission comprises a first support shaft (22), a first bevel gear (23) and a second bevel gear (24); the first support shaft (22) is vertically arranged between the transmission shaft (15) and the crank (33); the first bevel gear (23) is arranged on the transmission shaft (15); the second bevel gear (24) is arranged on the first support shaft (22) of the second bevel gear and meshes with the first bevel gear (23); the crank (33) is arranged at the other end of the first support shaft (22).

7. A building waterproof material cutting device according to claim 6, characterized in that: A return spring (28) is also provided between the piston (8) and the inner wall of the working chamber (11), and a pushing structure parallel to the sleeve (2) is also provided on the outer side of the sleeve (2), through which the coil (3) arranged on the sleeve (2) can be driven to slide forward.

8. A building waterproof material cutting device according to claim 7, characterized in that: The pushing structure comprises a second support shaft (30), a transmission belt, a second gear rack assembly, a second ratchet assembly, a second sliding block (31) and a pushing rod (32); the second support shaft (30) is arranged parallel to the first support shaft (22); the transmission belt is arranged between the first support shaft (22) and the second support shaft (30); the second gear rack assembly is arranged between the second support shaft (30) and the second sliding block (31); the second ratchet assembly is arranged between the second gear rack assembly and the second support shaft (30); therefore, when the second support shaft (30) rotates, the second gear rack assembly can be driven to rotate unidirectionally; the second sliding block (31) is arranged on the upper side of the second gear rack assembly and is slidably connected to the base (1); and the pushing rod (32) is arranged on the second sliding block (31).

9. A building waterproof material cutting device according to claim 1, characterized in that: The base (12) is also provided with a driving structure for driving the sleeve (2) to rotate, the driving structure comprising a second motor (25) and a gear transmission group, the second motor (25) being arranged on the base (12) and having an output shaft parallel to the sleeve (2), and the gear transmission group being arranged between the output shaft of the second motor (25) and the sleeve (2).

10. A method for cutting building waterproof materials, based on the building waterproof material cutting device as described in claim 5, characterized in that: The specific methods include the following: Fixing the coiled material (3) to be cut on the sleeve (2); Driving the first motor (13) to drive the knife cutting structure to approach the coiled material (3) and cut the coiled material (3); When the tool cutting structure approaches the coil (3) for cutting, it drives the piston shaft (9) to slide, thereby releasing the cutting fluid in the cutting fluid storage box (4) and aligning with the inner cutting position of the coil (3).

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