Cutting device for concrete prefabricated drainage pipe manufacturing
By designing an active protection and cleaning structure, the safety hazards and debris wear issues when the wire saw breaks are resolved, achieving safe and efficient cutting results and extending its service life, thus improving the safety and efficiency of the cutting device.
Patent Information
- Application Number
- CN202511661238.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-13
- Publication Date
- 2025-12-30
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing precast concrete drainage pipe cutting devices pose safety hazards when the wire saw breaks, and the wire saw debris is prone to adhesion, leading to wear and affecting service life.
A cutting device comprising an active protection structure and a cleaning structure was designed. The active protection structure prevents the wire saw from swinging out when it breaks through multiple mechanisms, while the cleaning structure removes wire saw debris by blowing air to avoid friction and wear.
It effectively prevents safety hazards when the wire saw breaks, extends the service life of the wire saw, and improves cutting safety and efficiency.
Smart Images
Figure CN121223960A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the cutting technical field, especially to a cutting device for manufacturing concrete prefabricated drainage pipe. BACKGROUND
[0002] The concrete prefabricated drainage pipe is a kind of concrete pipe material for conveying sewage, rainwater and other fluids, which is standardized in factory production and widely used in drainage systems of municipal engineering and road construction, and is made of cement and gravel as main raw materials, and reinforced with steel reinforcement to enhance structural strength, and is made through mold pouring and steam curing process.
[0003] Through retrieval, CN110789001A proposes a "concrete block stone rope saw cutting device", which comprises a base, a vertical column vertically arranged on the base, vertical slide rails fixed on both sides of the vertical column, a vertical rack arranged on the other side of the vertical column, and a lifting frame slidingly connected to the slide rails, wherein a anti-falling device is arranged to effectively solve the situation that the rope saw slides off the driving wheel during cutting, thereby improving the cutting efficiency of the rope saw and ensuring the safety of cutting.
[0004] The above-mentioned patent has the following shortcomings: when the rope saw breaks, the elastic potential energy is released instantaneously due to high-speed operation and tight state, which may cause "rope throwing" and cause danger. The protective cover of the above-mentioned patent only covers the driving wheel and the first driven wheel, and cannot cover the whole track of the rope saw. It is easy for those skilled in the art to think of covering the protective cover, but the full coverage design will block the view and make it difficult to observe the state of the rope saw, and the full coverage design will make the structure heavy, increase the weight of the device, affect the movement, and increase the difficulty of disassembly for rope saw replacement and wheel set maintenance, thereby reducing the operation efficiency. Therefore, the device is not suitable for full coverage. Therefore, the present application proposes an active protection structure, which can prevent the rope saw from causing the above-mentioned hazards when it breaks.
[0005] In addition, the rope saw will generate concrete debris when cutting the concrete drainage pipe, and these debris are easy to adhere to the rope saw. The above-mentioned patent lacks targeted cleaning means and cannot effectively clean the rope saw in time, which causes the debris to wear the surface of the rope saw, thereby shortening the service life of the rope saw. SUMMARY
[0006] The purpose of the present application is to solve the shortcomings in the background art and provide a cutting device for manufacturing concrete prefabricated drainage pipe.
[0007] In order to achieve the above object, the application adopts the following technical scheme: a cutting device for manufacturing prefabricated concrete drainage pipes, comprising a support frame provided with a proactive protection structure, the proactive protection structure comprising an installation plate fixed at the top of the support frame, a motor being installed on the installation plate, a support plate being fixed at the top of the support frame and provided with a sliding groove, a movable block being slidably connected in the sliding groove, a No. 2 spring being fixed at the bottom of the sliding groove and having a top fixedly connected with the bottom of the movable block, the front end of the motor being an output end provided with a slot, the support plate being rotatably connected with a drive wheel through a No. 1 rotating shaft, the No. 1 rotating shaft being slidably connected with a plug rod, a hollow groove being provided at the side of the No. 1 rotating shaft inside the plug rod, a No. 1 spring being provided in the hollow groove, the plug rod being externally fixed with a protruding block, the protruding block being located in the hollow groove, a No. 1 rod being fixed at the top of the movable block, a No. 2 rod being fixed to the No. 1 rod, a No. 1 wedge being fixed at the two ends of the No. 2 rod, the plug rod being designed in a wedge shape at one end and being in contact with the No. 1 wedge, extension rods being fixed at the two sides of the movable block and slidably connected with the support plate, a clamping groove being provided at the top of the extension rods, and a cleaning structure being provided at the bottom of the proactive protection structure of the support frame.
[0008] As a further scheme of the application, the proactive protection structure further comprises a No. 1 notch provided at the bottom of the sliding groove of the support frame, a No. 2 notch provided at a position protruding from the middle of the support frame, a No. 3 spring installed in the No. 2 notch, a connecting rod slidably connected with the No. 1 notch, a hollow pressing plate fixed at the end of the connecting rod and the No. 3 spring, a vertical rod fixed at the bottom of the movable block, and a No. 2 wedge fixed at the bottom of the vertical rod and penetrating into the No. 2 notch.
[0009] As a further scheme of the application, a rubber layer is provided in the clamping groove, and the clamping groove is located directly below the No. 1 rotating shaft.
[0010] As a further scheme of the application, one end of the connecting rod located in the No. 2 notch is designed in a wedge shape and is in contact with the No. 2 wedge.
[0011] As a further scheme of the application, the cleaning structure comprises a No. 2 rotating shaft rotatably connected with the movable block, a No. 1 driven wheel fixed at the outside of the No. 2 rotating shaft, and an eccentric wheel fixed at the end of the No. 2 rotating shaft.
[0012] As a further scheme of the application, the cleaning structure further comprises a piston slidably connected in the pressing plate, a vertical shaft fixed at the top of the piston, a top plate fixed at the top of the vertical shaft, and a No. 4 spring connecting between the top of the pressing plate and the bottom of the top plate.
[0013] As a further embodiment of the present invention, the cleaning structure also includes air blowing holes on the side of the pressure plate, and the air blowing holes are provided with dustproof nets.
[0014] As a further embodiment of the present invention, the support frame is provided with an adjustment structure on its side. The adjustment structure includes vertical grooves on both sides of the support frame, an electromagnetic slide rail is installed inside the vertical groove, and an elongated electromagnetic slider is installed outside the electromagnetic slide rail.
[0015] As a further embodiment of the present invention, the electromagnetic slider is rotatably connected to symmetrical driven wheels No. 2 and No. 3.
[0016] As a further embodiment of the present invention, a wire saw for cutting is wound around the drive wheel, the first driven wheel, the second driven wheel, and the third driven wheel.
[0017] The present invention provides a cutting device for manufacturing precast concrete drainage pipes, which has the following advantages: 1. Through the designed active protection structure, when the wire saw breaks unexpectedly, the pressure of the wire saw on the first driven wheel disappears. Then, the second spring will move the movable block upwards to reset. As the movable block moves upwards, it moves the first wedge upwards via the first and second rods. When the first wedge resets and rises, the first spring resets and moves the insert rod out of the slot. After separation, the motor will idle and no longer drive the wire saw to rotate; this is the first layer of protection. The reset of the movable block moves the extension rod upwards, and then the groove on the extension rod locks the outside of the first rotating shaft. Because the groove has a rubber layer, the locking is enhanced. Although the first shaft is separated from the motor output, its inertia still drives the drive wheel to rotate. Therefore, by clamping the first shaft with the slot, the first shaft can be stopped instantly, preventing the wire saw from "swinging" and causing danger due to inertia. This is the second layer of protection. The resetting and raising of the movable block will raise the vertical rod and the second wedge block. After the second wedge block rises, the force on the connecting rod is reduced. At this time, the third spring will reset the pressure plate and strike the wire saw, thereby causing the wire saw to stop suddenly and further preventing "swinging". This is the third layer of protection. The above three layers of protection can completely avoid the problems in the background technology.
[0018] 2. Through the designed cleaning structure, when the pressure plate moves forward, it comes to the direct under the eccentric wheel. Then, the moving block moves downward, bringing the eccentric wheel closer to the pressure plate, which improves the downward pressure effect on the pressure plate. During cutting, the first driven wheel rotates, which drives the eccentric wheel to rotate through the second rotating shaft. The rotating eccentric wheel presses down on the top plate, and the vertical shaft causes the piston to descend inside the pressure plate, compressing the air. The air is then discharged from the air blowing hole and blown towards the wire saw, thereby blowing away the debris adhering to the wire saw and extending its service life. Compared with traditional brush cleaning, it can achieve non-contact cleaning and avoid friction. Attached Figure Description
[0019] Figure 1 This is an external view of the cutting device proposed in this invention; Figure 2 The present invention proposes Figure 1 Schematic diagram of a partial structure; Figure 3 This is a schematic diagram of the back structure of the cutting device proposed in this invention; Figure 4 The present invention proposes Figure 3 Schematic diagram of a partial structure; Figure 5 This is a schematic diagram of the motor and the first rotating shaft proposed in this invention; Figure 6 This is a schematic diagram of the internal structure and top structure of the pressure plate proposed in this invention; Figure 7 The present invention proposes Figure 5 Cross-sectional view; Figure 8 The present invention proposes Figure 1 Side structure diagram; Figure 9 The present invention proposes Figure 8 Side view; Figure 10 This is an enlarged view of the A-shaped section proposed in this invention.
[0020] In the diagram: 1. Support frame; 2. Mounting plate; 3. Motor; 4. Support plate; 5. Slide groove; 6. Movable block; 7. Output end; 8. Slot; 9. Shaft No. 1; 10. Drive wheel; 11. Insert rod; 12. Empty slot; 13. Spring No. 1; 14. Protrusion; 15. Rod No. 1; 16. Rod No. 2; 17. Wedge No. 1; 18. Spring No. 2; 19. Extension rod; 20. Slot; 21. Groove No. 1; 22. 23. No. 2 slot; 24. No. 3 spring; 25. Connecting rod; 26. Pressure plate; 27. Vertical rod; 28. No. 2 wedge; 29. No. 2 rotating shaft; 30. No. 1 driven wheel; 31. Eccentric wheel; 32. Piston; 33. Vertical shaft; 34. Top plate; 35. No. 4 spring; 36. Air hole; 37. Vertical slot; 38. Electromagnetic slide rail; 39. Electromagnetic slider; 40. No. 3 driven wheel; 41. Wire saw. Detailed Implementation
[0021] 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.
[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.
[0023] A cutting device for manufacturing precast concrete drainage pipes includes: a support frame 1, the support frame 1 having an active protection structure, the active protection structure including a mounting plate 2 fixed to the top of the support frame 1, a motor 3 mounted on the mounting plate 2, a support plate 4 fixed to the top of the support frame 1 with a sliding groove 5, a movable block 6 slidably connected inside the sliding groove 5, a second spring 18 fixed to the bottom of the sliding groove 5, and the top of the second spring 18 fixedly connected to the bottom of the movable block 6, an output end 7 at the front end of the motor 3 with a slot 8, a drive wheel 10 rotatably connected to the support plate 4 via a first rotating shaft 9, a plug rod 11 slidably connected inside the first rotating shaft 9, and the interior of the first rotating shaft 9 located on the side of the plug rod 11. A slot 12 is provided on the side, and a first spring 13 is provided inside the slot 12. A protrusion 14 is fixed to the outside of the insertion rod 11 and is located inside the slot 12. A first rod 15 is fixed to the top of the movable block 6. A second rod 16 is fixed to the first rod 15. A wedge block 17 is fixed to both ends of the second rod 16. One end of the insertion rod 11 is wedge-shaped and contacts the first wedge block 17. Extension rods 19 are fixed to both sides of the movable block 6 and are slidably connected to the support plate 4. A slot 20 is provided at the top of the extension rod 19. A rubber layer is provided inside the slot 20. The slot 20 is located directly below the first rotating shaft 9. A cleaning structure is provided at the bottom of the active protection structure of the support frame 1.
[0024] It should be noted that since the output end 7 of motor 3 is separate from the first rotating shaft 9, starting motor 3 at this time will only cause the first rotating shaft 9 to spin freely and will not drive the drive wheel 10 to rotate. Only when the movable block 6 moves downward inside the slide groove 5 will the motor 3 drive the drive wheel 10 to rotate. In this case, the movable block 6 is equivalent to the switch of the active protection structure. The purpose of the design that the output end 7 is separate from the first rotating shaft 9 is to prevent motor 3 from directly driving the drive wheel 10 to rotate and forgetting to open the active protection structure through the movable block 6. In summary, the drive wheel 10 will only rotate when the active protection structure is in the open state. This design can provide forced safety protection.
[0025] The downward movement of the aforementioned movable block 6 will cause the extension rod 19 to move downward. Then, the slot 20 at the top of the extension rod 19 will separate from the first rotating shaft 9. When the movable block 6 moves downward, the first wedge block 17 will move downward through the first rod 15 and the second rod 16. When the first wedge block 17 moves downward, it will press the insertion rod 11, causing the insertion rod 11 to move inside the first rotating shaft 9 and extend out. During this process, the protrusion 14 on the outside of the insertion rod 11 will press the first spring 13. The function of the first spring 13 is to facilitate the subsequent reset of the insertion rod 11. The insertion rod 11 extends out and is inserted into the slot 8 of the output end 7, which is conducive to completing the connection between the output end 7 and the first rotating shaft 9. After that, the motor 3 starts and drives the drive wheel 10 to rotate, which cuts the drain pipe through the wire saw 41, thereby making the cutting device start working.
[0026] When the wire saw 41 breaks unexpectedly, the pressure of the wire saw 41 on the first driven wheel 29 disappears. Then the second spring 18 will move the movable block 6 upward to reset. When the movable block 6 moves upward, it will move the first wedge block 17 upward through the first rod 15 and the second rod 16. When the first wedge block 17 resets and rises, the first spring 13 resets and moves the insertion rod 11 out of the slot 8. After separation, the motor 3 will idle and will no longer drive the wire saw 41 to rotate. This is the first layer of protection.
[0027] At the same time, the movable block 6 resets and moves the extension rod 19 upward. Then, the slot 20 on the extension rod 19 locks the outside of the first rotating shaft 9. Since the slot 20 is equipped with a rubber layer, the locking effect is improved. Although it is separated from the output end 7 of the motor 3, the first rotating shaft 9 will still drive the drive wheel 10 to rotate due to inertia. Therefore, locking the first rotating shaft 9 through the slot 20 can achieve an instantaneous stop of the first rotating shaft 9, preventing the wire saw 41 from "swinging" due to inertia and causing danger. This is the second layer of protection.
[0028] In addition, the active protection structure also includes a first slot 21 located at the bottom of the slide groove 5 on the support frame 1, a second slot 22 provided at the protruding position in the middle of the support frame 1, a third spring 23 installed inside the second slot 22, a connecting rod 24 slidably connected to the first slot 21, a hollow pressure plate 25 fixed to the end of the third spring 23 and the connecting rod 24, a vertical rod 26 fixed to the bottom of the movable block 6, the bottom of the vertical rod 26 penetrating into the interior of the second slot 22 and fixed with a second wedge block 27, and one end of the connecting rod 24 located inside the second slot 22 is wedge-shaped and contacts the second wedge block 27.
[0029] Furthermore, when the movable block 6 descends, it will bring down the vertical rod 26 and the second wedge block 27, compressing the second spring 18. The descent of the second wedge block 27 acts on the connecting rod 24, and then the third spring 23 is stretched and the pressure plate 25 moves forward. The pressure plate 25 is initially in contact with the wire saw 41. When the pressure plate 25 moves forward, the wire saw 41 separates from the pressure plate 25. The movable block 6 returns to its original position and rises, bringing up the vertical rod 26 and the second wedge block 27. After the second wedge block 27 rises, the force on the connecting rod 24 is reduced. At this time, the third spring 23 will bring the pressure plate 25 back to its original position and strike the wire saw 41, thereby causing the wire saw 41 to stop suddenly and further preventing the "rope swinging" from happening. This is the third layer of protection.
[0030] Furthermore, the cleaning structure includes a second rotating shaft 28 rotatably connected to the movable block 6, a driven wheel 29 fixed to the outside of the second rotating shaft 28, and an eccentric wheel 30 fixed to the end of the second rotating shaft 28. The cleaning structure also includes a piston 31 slidably connected inside the pressure plate 25, a vertical shaft 32 fixed to the top of the piston 31, a top plate 33 fixed to the top of the vertical shaft 32, and a fourth spring 34 connecting the top of the pressure plate 25 and the bottom of the top plate 33. The cleaning structure also includes an air blowing hole 35 on the side of the pressure plate 25, and a dustproof net is provided on the air blowing hole 35 to prevent dust from entering the pressure plate 25 through the air blowing hole 35 during reset.
[0031] It can be concluded that when the pressure plate 25 moves forward, it comes to the position directly below the eccentric wheel 30. Then, the moving block 6 moves downward, which brings the eccentric wheel 30 closer to the pressure plate 25, thus improving the downward pressure effect on the pressure plate 25. During cutting, the first driven wheel 29 rotates, which drives the eccentric wheel 30 to rotate through the second rotating shaft 28. The eccentric wheel 30 rotates and presses the top plate 33. The vertical shaft 32 causes the piston 31 to descend within the pressure plate 25 and compress the air. The air is then discharged from the air blowing hole 35 and blown towards the wire saw 41, thereby blowing away the debris adhering to the wire saw 41 and extending the service life of the wire saw 41. Compared with traditional brush cleaning, this method can achieve non-contact cleaning and avoid friction.
[0032] Next, the support frame 1 is provided with an adjustment structure on its side. The adjustment structure includes vertical grooves 36 on both sides of the support frame 1. An electromagnetic slide rail 37 is installed inside the vertical groove 36. An elongated electromagnetic slider 38 is installed outside the electromagnetic slide rail 37. Symmetrical driven wheels 39 and 40 are rotatably connected to the electromagnetic slider 38. A wire saw 41 for cutting is wound around the drive wheel 10, driven wheel 29, driven wheel 39, and driven wheel 40.
[0033] Specifically, since the downward movement of the movable block 6 will cause the first driven wheel 29 to move downward, the wire saw 41 will become loose. At this time, it is necessary to compensate for the loose part by adjusting the structure. Specifically, the electromagnetic slider 38 moves downward outside the electromagnetic slide rail 37, and the electromagnetic slider 38 causes the second driven wheel 39 to move downward, thus straightening the loose wire saw 41 to achieve compensation. In addition, the wire saw 41 itself will also become loose due to long-term operation, and this can also be adjusted by adjusting the structure.
[0034] Working principle: Through the designed active protection and adjustment structures, the device in its initial state, such as... Figure 1 , 2 As shown, during the cutting operation, the device is placed on top of the concrete drainage pipe, and then the bottom of the wire saw 41 is passed through the bottom of the drainage pipe and adjusted to the cutting state. Since the output end 7 of the motor 3 is separate from the first rotating shaft 9, as... Figure 10 As shown, starting the motor 3 at this time will only cause the first rotating shaft 9 to idle and will not drive the drive wheel 10 to rotate. Only when the movable block 6 moves downward inside the slide 5 will the motor 3 drive the drive wheel 10 to rotate. The movable block 6 in this case is equivalent to the switch of the active protection structure. The purpose of the design of the output end 7 being separated from the first rotating shaft 9 is to prevent the motor 3 from directly driving the drive wheel 10 to rotate and forgetting to open the active protection structure through the movable block 6. In summary, the drive wheel 10 will only rotate when the active protection structure is in the open state. This design can provide forced safety protection.
[0035] The downward movement of the aforementioned movable block 6 will cause the extension rod 19 to move downward. Then, the slot 20 at the top of the extension rod 19 will separate from the first rotating shaft 9. When the movable block 6 moves downward, the first wedge block 17 will move downward through the first rod 15 and the second rod 16. When the first wedge block 17 moves downward, it will press the insertion rod 11, causing the insertion rod 11 to move inside the first rotating shaft 9 and extend out. During this process, the protrusion 14 on the outside of the insertion rod 11 will press the first spring 13. The function of the first spring 13 is to facilitate the subsequent reset of the insertion rod 11. The insertion rod 11 extends out and is inserted into the slot 8 of the output end 7, which is conducive to completing the connection between the output end 7 and the first rotating shaft 9.
[0036] When the movable block 6 descends, it will bring down the vertical rod 26 and the second wedge block 27 and compress the second spring 18. The second wedge block 27 descends and acts on the connecting rod 24. Then the third spring 23 is stretched and the pressure plate 25 moves forward. The pressure plate 25 is initially in contact with the wire saw 41. When the pressure plate 25 moves forward, the wire saw 41 and the pressure plate 25 separate from the contact state.
[0037] However, since the downward movement of the movable block 6 will cause the first driven wheel 29 to move downward, the wire saw 41 will become loose. At this time, it is necessary to compensate for the loose part by adjusting the structure. Specifically, the electromagnetic slider 38 moves downward outside the electromagnetic slide rail 37, and the electromagnetic slider 38 causes the second driven wheel 39 to move downward, thus straightening the loose wire saw 41 to achieve compensation. In addition, the wire saw 41 itself will also become loose due to long-term operation, which can also be adjusted by adjusting the structure.
[0038] After the above is completed, the motor 3 starts and drives the drive wheel 10 to rotate, which cuts the drainage pipe through the wire saw 41, thus making the cutting device start working.
[0039] When the wire saw 41 breaks unexpectedly, the pressure of the wire saw 41 on the first driven wheel 29 disappears. Then the second spring 18 will move the movable block 6 upward to reset. When the movable block 6 moves upward, it will move the first wedge block 17 upward through the first rod 15 and the second rod 16. When the first wedge block 17 resets and rises, the first spring 13 resets and moves the insertion rod 11 out of the slot 8. After separation, the motor 3 will idle and will no longer drive the wire saw 41 to rotate. This is the first layer of protection.
[0040] At the same time, the movable block 6 resets and moves the extension rod 19 upward. Then, the slot 20 on the extension rod 19 locks the outside of the first rotating shaft 9. Since the slot 20 is equipped with a rubber layer, the locking effect is improved. Although it is separated from the output end 7 of the motor 3, the first rotating shaft 9 will still drive the drive wheel 10 to rotate due to inertia. Therefore, locking the first rotating shaft 9 through the slot 20 can achieve an instantaneous stop of the first rotating shaft 9, preventing the wire saw 41 from "swinging" due to inertia and causing danger. This is the second layer of protection.
[0041] At the same time, the resetting and raising of the movable block 6 will raise the vertical rod 26 and the second wedge block 27. After the second wedge block 27 rises, the force on the connecting rod 24 is reduced. At this time, the third spring 23 will bring the pressure plate 25 back to its original position and strike the wire saw 41, thereby causing the wire saw 41 to stop suddenly and further preventing the "rope swinging" from happening. This is the third layer of protection. Through the above three layers of protection, the problems in the background technology can be completely avoided.
[0042] It should be explained that using this structure can completely eliminate the need for a protective cover, thus avoiding obstruction of vision and the hassle of replacing parts. However, installing the semi-covered protective cover shown in the comparison document will not affect the use of the device.
[0043] With the cleaning structure in place, when the pressure plate 25 moves forward, it comes to a position directly below the eccentric wheel 30. Then, the moving block 6 moves downward, bringing the eccentric wheel 30 and the pressure plate 25 closer together (see reference). Figure 10 This design facilitates improved pressure on the pressure plate 25. During cutting, the first driven wheel 29 rotates, which in turn drives the eccentric wheel 30 to rotate via the second rotating shaft 28. The eccentric wheel 30 presses down on the top plate 33, and the piston 31 descends within the pressure plate 25 via the vertical shaft 32, compressing the air. The air is then discharged from the air hole 35 and blown onto the wire saw 41, thereby blowing away the debris adhering to the wire saw 41 and extending its service life. Compared to traditional brush cleaning, this design achieves contactless cleaning and avoids friction.
[0044] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A cutting apparatus for manufacturing a concrete precast drain pipe, comprising: Support frame (1), it is characterized by: the support frame (1) is provided with active protection structure, the active protection structure includes the mounting plate (2) fixed on the top of support frame (1), the mounting plate (2) is installed motor (3), the top of support frame (1) is fixed with support plate (4) and is provided with sliding slot (5), the inside of sliding slot (5) is slidably connected with movable block (6), the bottom of sliding slot (5) is fixed with No.2 spring (18), and the top of No.2 spring (18) is fixedly connected with the bottom of movable block (6), the front end of motor (3) is output end (7), output end (7) is provided with slot (8), support plate (4) is rotatably connected with drive wheel (10) through No.1 rotating shaft (9), the inside of No.1 rotating shaft (9) is slidably connected with plug rod (11), the inside of No.1 rotating shaft (9) is provided with hollow slot (12) at the side of plug rod (11), the inside of hollow slot (12) is provided with No.1 spring (13), the outside of plug rod (11) is fixed with lug (14), and lug (14) is located in the inside of hollow slot (12), the top of movable block (6) is fixed with No.1 rod (15), No.1 rod (15) is fixed with No.2 rod (16), the both ends of No.2 rod (16) are fixed with No.1 wedge block (17), one end of plug rod (11) is wedge-shaped design and is in contact with No.1 wedge block (17), the both sides of movable block (6) are fixed with extension rod (19), and extension rod (19) is slidably connected with support plate (4), the top of extension rod (19) is provided with clamping groove (20), the bottom of support frame (1) is provided with cleaning structure in active protection structure.
2. The cutting apparatus for manufacturing a concrete precast drain pipe according to claim 1, wherein The active protection structure further includes a first notch (21) on the support frame (1) at the bottom of the sliding slot (5), a second notch (22) is provided on the support frame (1) at the protruding position of the middle portion, a third spring (23) is installed in the second notch (22), a connecting rod (24) is slidably connected to the first notch (21), a hollow pressing plate (25) is fixed to the end of the connecting rod (24) and the third spring (23), a vertical rod (26) is fixed to the bottom of the movable block (6), and the bottom of the vertical rod (26) penetrates into the second notch (22) and is fixed with a second wedge block (27).
3. The cutting apparatus for manufacturing a concrete precast drain pipe according to claim 1, wherein The inside of the clamping groove (20) is provided with a rubber layer, and the clamping groove (20) is located directly below the No.1 rotating shaft (9).
4. The cutting apparatus for manufacturing a concrete precast drain pipe according to claim 2, wherein One end of the connecting rod (24) inside the second notch (22) is wedge-shaped and in contact with the second wedge block (27).
5. The cutting apparatus for manufacturing a concrete precast drain pipe according to claim 1, wherein The cleaning structure includes a second rotating shaft (28) rotatably connected to the movable block (6), a first driven wheel (29) is fixed to the outside of the second rotating shaft (28), and an eccentric wheel (30) is fixed to the end of the second rotating shaft (28).
6. The cutting apparatus for manufacturing a concrete precast drain pipe according to claim 2, wherein The cleaning structure further comprises a piston (31) slidingly connected inside the pressing plate (25), a vertical shaft (32) is fixed to the top of the piston (31), a top plate (33) is fixed to the top of the vertical shaft (32), and the top of the pressing plate (25) is connected with the bottom of the top plate (33) through the fourth spring (34).
7. The cutting apparatus for manufacturing a concrete precast drain pipe according to claim 2, wherein The cleaning structure further comprises air blowing holes (35) on the side of the pressing plate (25), and the air blowing holes (35) are provided with dustproof screens.
8. The cutting apparatus for manufacturing a concrete precast drain pipe according to claim 1, wherein The side of the supporting frame (1) is provided with an adjusting structure, the adjusting structure comprises vertical grooves (36) on both sides of the supporting frame (1), electromagnetic sliding rails (37) are installed inside the vertical grooves (36), and long strip-shaped electromagnetic sliding blocks (38) are installed outside the electromagnetic sliding rails (37).
9. The cutting apparatus for manufacturing a concrete precast drain pipe according to claim 8, wherein The electromagnetic sliding blocks (38) are rotationally connected with symmetrical second driven wheels (39) and third driven wheels (40).
10. The cutting apparatus for manufacturing a concrete precast drain pipe according to claim 1, wherein The driving wheel (10), the first driven wheel (29), the second driven wheel (39), and the third driven wheel (40) are provided with rope saws (41) for cutting.