Nodular cast iron pipeline cutting machine

Abstract

The utility model discloses a nodular cast iron pipeline cutting machine which comprises a base, a cutting device and a cutting device. The mounting frame is horizontally and slidably arranged on the vertical plate in a sleeving manner; a mounting plate is fixed on the mounting frame, a water tank is fixed on the mounting plate, and a water nozzle is connected to the bottom of the water tank; two vertically arranged mounting rods are further arranged on the lower surface of the mounting plate; the fixing frame is arranged below the mounting plate, a cutting cutterhead is rotationally arranged on the fixing frame, the cutting cutterhead is driven by a second driving motor on the side wall of the fixing frame to rotate, and the water spraying nozzle faces the cutting position of the cutting cutterhead; the two baffles are hinged to the two ends of the mounting plate respectively; and two ends of each first electric push rod are respectively hinged with the baffle plate and the mounting rod. According to the device, the water tank and the water spray nozzle are arranged, so that the cutting position of the cutter head can be cooled in time, on one hand, the temperature of the cutting position can be effectively reduced, and on the other hand, cutting chips can be taken away and prevented from splashing.

Description

Technical Field

[0001] This utility model relates to the field of cutting machines, specifically to a ductile iron pipe cutting machine. Background Technology

[0002] Ductile iron pipe cutting machines are mechanical cutting equipment widely used in industries such as petroleum, chemical, power, natural gas, metallurgy, shipbuilding, boiler, pharmaceutical, and water treatment, as well as in pipeline installation and maintenance for new projects.

[0003] In existing technologies, ductile iron pipes are rapidly cut using abrasive wheels. However, cutting machines using abrasive wheels generate a large amount of high-temperature debris during cutting, posing certain safety hazards. Therefore, high-strength cutting discs are gradually being used to replace abrasive wheels for cutting ductile iron pipes, thereby reducing debris splashing. However, in actual use, although the problem of high-temperature debris splashing during cutting has been improved, it still exists. Furthermore, existing cutting devices cannot effectively cool the cutting point, which affects both the mechanical properties of the ductile iron pipe and the lifespan of the cutting tools.

[0004] To address these technical problems, a ductile iron pipe cutting machine is proposed. Utility Model Content

[0005] This invention provides a ductile iron pipe cutting machine to solve the problems of large amounts of high-temperature debris splashing during the cutting process of existing cutting machines and the inability of existing cutting devices to effectively cool the cutting point.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A ductile iron pipe cutting machine, comprising:

[0008] The base has a vertical plate on one side, and a limit groove is opened on the vertical plate. A vertical first drive motor is installed in the limit groove. The output shaft of the first drive motor is connected to one end of a vertical threaded rod, and the other end of the vertical threaded rod rotates through the end wall of the limit groove.

[0009] The mounting bracket is horizontally set and slidably fitted onto a vertical plate. One end of the bracket has a limiting head that is embedded in the limiting groove. A mounting plate is fixed on the mounting bracket, and a water tank is fixed on the mounting plate. A water guide pipe that penetrates the vertical mounting plate is connected to the bottom of the water tank. A water nozzle is provided at the end of the water guide pipe. Two vertically set mounting rods are also provided on the lower surface of the mounting plate.

[0010] A fixed frame is set below the mounting plate, and a cutting disc is rotatably mounted on the fixed frame. The cutting disc is driven to rotate by a second drive motor on the side wall of the fixed frame, and the water spray nozzle is directed toward the cutting position of the cutting disc.

[0011] Two baffles are hinged to both ends of the mounting plate, respectively;

[0012] Two first electric actuators, each with its two ends hinged to a baffle and a mounting rod, respectively.

[0013] Specifically, the mounting bracket is also provided with a horizontal positioning block, a positioning post that penetrates the positioning block vertically, a sleeve that is fitted around the lower half of the positioning post, a positioning plate that is connected to the bottom of the sleeve, and a pressing roller that is provided at the bottom of the positioning plate; it also includes a telescopic spring that is positioned between the positioning plate and the positioning block and fitted around the positioning post and the sleeve.

[0014] Specifically, the water pipe is also provided with a valve switch for controlling the opening or closing of the water pipe, and the valve switch is electrically connected to the push-pull sensor; it also includes a push-pull rod with one end hinged to the lower surface of the baffle, and the other end of the push-pull rod is hinged to the force-receiving part of the push-pull sensor.

[0015] Specifically, the base is also provided with a support plate located on the opposite side of the vertical plate, and two mounting shells are arranged side by side between the support plate and the vertical plate; the mounting shell is provided with a mounting cavity, and two vertical rotating gears are rotatably installed in the mounting cavity. Each of the two rotating gears has a clamping rod fixedly connected to its shaft, and a dual-axis motor is provided at the other end of the clamping rod. Each of the two output shafts at both ends of the dual-axis motor is connected to a clamping roller.

[0016] A vertical electric lifting column is fixed between the two mounting shells. The bottom of the electric lifting column is connected to the middle of the crossbar of the U-shaped frame. The U-shaped frame opens upward and its two ends extend into the two mounting shells respectively. The two ends of the U-shaped frame are also provided with drive teeth, which mesh with two rotating gears on both sides respectively.

[0017] Furthermore, each of the two mounting housings is connected to a horizontal second electric actuator, and a vertically arranged rotating roller is fixed on the piston rod of the second electric actuator.

[0018] Furthermore, the mounting shell is located on the upper half of the support plate, and the bottom of the mounting shell is suspended.

[0019] Specifically, the top of the vertical plate is provided with a horizontal baffle.

[0020] Specifically, the base has a downwardly recessed storage trough in the middle.

[0021] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0022] This invention, by setting up a water tank and water spray nozzles, can cool down the cutting position of the cutting disc in a timely manner. On the one hand, it can effectively reduce the temperature of the cutting position; on the other hand, it can also remove cutting debris and prevent it from flying. Furthermore, the opening and closing degree of the baffle can be adjusted by the first electric push rod, so that the baffle can effectively protect the cutting disc during cutting operations and further prevent cutting debris from flying. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the utility model device.

[0024] Figure 2 This is a schematic diagram of the device from another perspective.

[0025] Figure 3 This is a schematic diagram of the internal structure of the mounting cavity.

[0026] Figure 4 for Figure 1 Enlarged structural diagram at point A in the middle.

[0027] The meanings of the labels in the diagram are as follows:

[0028] Base—1; Support plate—101; Mounting shell—102; Mounting cavity—103; Rotating gear—104; Clamping rod—105; Dual-axis motor—106; Clamping roller—107; Electric lifting column—108; U-shaped frame—109; Second electric push rod—110; Rotating roller—111; Horizontal baffle—112; Storage trough—113;

[0029] Vertical plate—2; Limiting groove—201; First drive motor—202; Vertical threaded rotating rod—203;

[0030] Mounting bracket—3; Limit head—301; Mounting plate—302; Water tank—303; Water guide pipe—304; Spray nozzle—305; Mounting rod—306; Positioning block—307; Positioning column—308; Sleeve—309; Positioning plate—310; Pressure roller—311; Telescopic spring—312; Valve switch—313; Push-pull sensor—314; Push-pull rod—315;

[0031] Fixed frame—4; Cutting blade—401; Second drive motor—402;

[0032] Baffle-5; First electric actuator-501. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, so as to provide a better understanding of the concept of the present utility model, the technical problem solved, the technical features constituting the technical solution and the technical effects brought about.

[0034] like Figures 1-4 As shown, a ductile iron pipe cutting machine includes:

[0035] The base 1 has a vertical plate 2 on one side. A limit groove 201 is opened on the vertical plate 2. A vertical first drive motor 202 is installed in the limit groove 201. The output shaft of the first drive motor 202 is connected to one end of a vertical threaded rod 203. The other end of the vertical threaded rod 203 rotates through the end wall of the limit groove 201.

[0036] Mounting bracket 3 is horizontally set and slidably sleeved on vertical plate 2. One end is provided with a limiting head 301 embedded in the limiting groove 201. Mounting plate 302 is fixed on mounting bracket 3. Water tank 303 is fixed on mounting plate 302. Water pipe 304 is connected to the bottom of water tank 303 and passes through vertical mounting plate 302. Water nozzle 305 is provided at the end of water pipe 304. Two vertically set mounting rods 306 are also provided on the lower surface of mounting plate 302.

[0037] A fixing frame 4 is set below the mounting plate 302. A cutting disc 401 is rotatably mounted on the fixing frame 4. The cutting disc 401 is driven to rotate by a second drive motor 402 on the side wall of the fixing frame 4. The water spray nozzle 305 faces the cutting position of the cutting disc 401.

[0038] Two baffles 5 are respectively hinged to both ends of the mounting plate 302;

[0039] Two first electric actuators 501, each of which is hinged at both ends to the baffle 5 and the mounting rod 306 respectively.

[0040] The main working principle of this utility model is as follows:

[0041] The base 1 is used to place and fix the ductile iron pipe. Its fixing can be achieved using a fixed seat structure or a rotating roller to facilitate the rotation of the ductile iron pipe. Since similar bases exist in many existing technologies, their specific structure is not limited. A first drive motor 202 is installed in the limiting groove 201 of the vertical plate 2 to drive the vertical threaded rotating rod 203 to rotate. This, in conjunction with the limiting head 301 of the mounting bracket 3 sleeved on the vertical plate 2, enables the mounting bracket 3 to rise and fall vertically on the vertical plate 2, thereby adjusting the height of the cutting disc 401 set on the fixed frame 4 to complete the cutting of the ductile iron pipe. The mounting bracket 3 also has a water tank 303. The bottom of the water tank 303 is connected to a water guide pipe 304, and the end of the water guide pipe 304 is equipped with a water nozzle 305 to spray water from the water tank 303. This sprays water from the water tank 303 to reduce the temperature at the cutting position of the cutting disc 401 and also reduces the splashing of cutting debris. It should be noted that the spray nozzle 305 is a nozzle with a suction function; for ease of description, its suction pump is omitted here. Alternatively, a regular spray head can be used in conjunction with a water pump located inside the water tank to achieve the same function. The mounting bracket 4 is positioned below the mounting plate 302. A second drive motor 402, located on the side wall of the mounting bracket 4, rotates the cutting disc 401 mounted on the mounting bracket 4, thereby enabling the cutting of the ductile iron pipe. Two baffles 5 are provided, hinged to both ends of the mounting plate 302. The baffles 5 are also hinged to the mounting plate 306 on the lower surface of the mounting bracket via two first electric actuators 501. By adjusting the extension and retraction of the first electric actuators 501, the angle of the two baffles 5 can be adjusted, thus adjusting the opening and closing degree of the baffles 5. This allows them to retract during the cutting operation of the cutting disc 401 on the ductile iron pipe, blocking flying debris and further preventing cutting debris from splashing.

[0042] In a preferred embodiment, the mounting bracket 3 is further provided with a horizontal positioning block 307, a positioning post 308 vertically penetrating the positioning block 307, and a sleeve 309 sleeved around the lower half of the positioning post 308. The bottom of the sleeve 309 is connected to a positioning plate 310, and the bottom of the positioning plate 310 is provided with a pressing roller 311. It also includes a telescopic spring 312, which is disposed between the positioning plate 310 and the positioning block 307, and sleeved around the positioning post 308 and the sleeve 309.

[0043] In this embodiment, as Figure 1 , Figure 2 and Figure 4As shown, a structure is provided for clamping ductile iron pipes to prevent displacement during cutting. Specifically, the positioning block 307 is a horizontal plate, and the positioning post 308 vertically penetrates the positioning block 307, thereby fixing the position of the positioning post 308. The sleeve 309 is fitted around the lower half of the positioning post 308, allowing the sleeve 309 to slide up and down outside the positioning post 308. With the cooperation of the telescopic spring 312, when the mounting bracket 3 descends, the clamping roller 311 can apply a vertical pressure to the ductile iron pipe, thereby preventing the ductile iron pipe from rolling due to radial cutting force during cutting. The telescopic spring 312 can buffer and adjust this vertical pressure to prevent damage to the ductile iron pipe caused by excessive pressure.

[0044] As a preferred embodiment, the water pipe 304 is further provided with a valve switch 313 for controlling the opening or closing of the water pipe 304. The valve switch 313 is electrically connected to the push-pull sensor 314. It also includes a push-pull rod 315 with one end hinged to the lower surface of the baffle 5. The other end of the push-pull rod 315 is hinged to the force-receiving part of the push-pull sensor 314.

[0045] This embodiment provides a structure for controlling the opening and closing of the spraying process of water in water tank 303, such as... Figure 4 As shown, specifically, valve switch 313 is used to control the opening or closing of the water supply line of water pipe 304. The opening and closing of valve switch 313 is controlled by push-pull sensor 314. When baffle 5 is open, the cutting disc 401 is in a stopped cutting state. At this time, push-pull rod 315 is pulled outward and upward by baffle 5, which in turn pulls the force-bearing part of push-pull sensor 314 to move outward. Push-pull sensor 314 receives a pull signal, thereby controlling the water supply line to close. Conversely, when baffle 5 is closed, the cutting disc 401 is in a cutting operation state. At this time, push-pull rod 315 is pushed inward by baffle 5. Push-pull sensor 315 receives a push signal, thereby controlling the water supply line to open, so that the water in water tank 303 can be sprayed out by spray nozzle 305, which plays a role in cooling the cutting position of cutting disc 401 and preventing cutting debris from splashing.

[0046] In a preferred embodiment, the base 1 is further provided with a support plate 101 located on the opposite side of the vertical plate 2, and two mounting shells 102 are arranged side by side between the support plate 101 and the vertical plate 2; the mounting shell 102 is provided with a mounting cavity 103, and two vertical rotating gears 104 are rotatably arranged in the mounting cavity 103. Each of the two rotating gears 104 has a clamping rod 105 fixedly connected to its rotating shaft, and a dual-axis motor 106 is provided at the other end of the clamping rod 105. Each of the two output shafts at both ends of the dual-axis motor 106 is connected to a clamping roller 107.

[0047] A vertical electric lifting column 108 is fixed between the two mounting shells 102. The bottom of the electric lifting column 108 is connected to the middle of the crossbar of the U-shaped frame 109. The U-shaped frame 109 has an upward opening and its two ends extend into the two mounting shells 102 respectively. The two ends of the U-shaped frame 109 are also provided with drive teeth, which mesh with two rotating gears 104 on both sides respectively.

[0048] In this embodiment, a structure is provided for further clamping and adjusting the state of the ductile iron pipe, such as... Figure 1 , Figure 2 and Figure 4 As shown, specifically, the rotating gear 104 within the mounting cavity 103 of the mounting housing 102 serves as the output structure for rotation, adjusting the opening and closing degree of the clamping rod 105. This allows the clamping roller 107 at the end of the clamping rod 105 to adjust the clamping position of the ductile iron pipe, further reinforcing its position. Specifically, the electric lifting column 108, as the power source for the aforementioned process, is fixedly installed between the two mounting housings 102. The electric lifting column 108 controls the lifting and lowering of the U-shaped frame 109. The lifting and lowering of the U-shaped frame 109 drives the drive gear to rotate the rotating gear 104, thereby adjusting the opening and closing degree of the clamping rod 105. The dual-axis motor 106 mounted on the clamping rod 105 drives the clamping roller 107 to rotate, thus outputting rotation to the ductile iron pipe. This causes the ductile iron pipe to rotate along with the clamping roller 107, adjusting the cutting position of the cutting disc 401 on the outer wall of the ductile iron pipe.

[0049] As a further embodiment, each of the two mounting shells 102 is also connected to a horizontal second electric actuator 110, and a vertically arranged rotating roller 111 is fixed on the piston rod of the second electric actuator 110.

[0050] In this embodiment, a structure for chamfering the ends of ductile iron pipes is provided, such as... Figure 1 , Figure 2 and Figure 4 As shown, specifically, the extension and retraction of the second electric actuator 110 can move the position of the rotating roller 111 set on the piston rod, so that the rotating roller 111 can clamp the ductile iron pipe from both ends. On the one hand, it can further strengthen the ductile iron pipe and prevent the ductile iron pipe from shifting in the axial direction. On the other hand, by setting a friction layer on the outside of the rotating roller 111, it can chamfer the cut end of the ductile iron pipe as the ductile iron pipe rotates, effectively optimizing the quality of the finished ductile iron pipe.

[0051] As a further embodiment, the mounting shell 102 is disposed on the upper half of the support plate 101, and the bottom of the mounting shell 102 is suspended.

[0052] In this embodiment, as Figure 1 As shown, by setting the mounting shell 102 on the upper half of the support plate 101, the bottom of the mounting shell 102 is suspended, thus reserving enough space for the lifting of the electric lifting column 108 and the lifting of the U-shaped frame 109.

[0053] In a preferred embodiment, the top of the vertical plate 2 is provided with a horizontal baffle 112.

[0054] In this embodiment, as Figure 1 As shown, the horizontal baffle 112 set at the top of the vertical plate 2 is used to limit the lifting height of the mounting bracket 3 and prevent the mounting bracket 3 from slipping due to excessive lifting.

[0055] As a further embodiment, the base 1 has a downwardly recessed storage trough 113 in the middle.

[0056] In this embodiment, as Figure 1 As shown, by setting a downwardly recessed storage trough 113 in the middle of the base 1, the cutting debris can be collected, which facilitates the unified processing of the cutting debris in the later stage.

[0057] The terms "connection" and "fixing" appearing in this utility model description can refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meaning of the above terms in this utility model should be understood according to the specific circumstances.

[0058] In the description of this utility model, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., are used only to indicate the orientation or positional relationship for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A ductile cast iron pipe cutter characterized by, The utility model relates to a cutting device for cutting the grass on the roof, including: Base (1) is equipped with vertical stand (2) on one side, and the vertical stand (2) is provided with limiting groove (201), and the limiting groove (201) is equipped with vertical first drive motor (202) inside, and the output shaft of first drive motor (202) is connected to one end of vertical screw rod (203), and the other end of vertical screw rod (203) rotates and penetrates the end wall of limiting groove (201); Mounting frame (3) is horizontally and slidingly sleeved on the vertical stand (2), and one end is provided with limiting head (301) embedded in the limiting groove (201);Mounting plate (302) is fixed on mounting frame (3), and water tank (303) is fixed on mounting plate (302), and the bottom of water tank (303) is connected with water guide pipe (304) penetrating the vertical mounting plate (302), and the tail end of water guide pipe (304) is provided with water nozzle (305);Two vertical mounting rods (306) are further provided on the lower surface of mounting plate (302); Fixed frame (4) is arranged below mounting plate (302), and cutting cutter head (401) is rotatably arranged on fixed frame (4), and the cutting cutter head (401) is driven to rotate by second drive motor (402) on the side wall of fixed frame (4), and the water nozzle (305) is directed to the cutting position of cutting cutter head (401); Two baffles (5) are respectively hingedly connected to the two ends of mounting plate (302); Two first electric push rods (501) are respectively hingedly connected to the baffle (5) and the mounting rod (306) at both ends of each first electric push rod (501).

2. A ductal cutting machine for nodular cast iron pipes as claimed in claim 1, characterized in that, The mounting frame (3) is further provided with a horizontal positioning block (307), a positioning column (308) vertically penetrates the positioning block (307), a sleeve (309) is further sleeved on the outer periphery of the lower half of the positioning column (308), a positioning plate (310) is connected to the bottom of the sleeve (309), and a pressing roller (311) is arranged on the bottom of the positioning plate (310);A telescopic spring (312) is arranged between the positioning plate (310) and the positioning block (307), and the telescopic spring (312) is sleeved on the outside of the positioning column (308) and the sleeve (309).

3. A ductal cutting machine for nodular cast iron pipes as claimed in claim 1, characterized in that, The water guide pipe (304) is further provided with a valve switch (313) for controlling the conduction or closure of the water guide pipe (304), and the valve switch (313) is electrically connected with a push-pull sensor (314);A push-pull rod (315) is hingedly connected to the lower surface of the baffle (5) at one end, and the other end of the push-pull rod (315) is hingedly connected with the stress part of the push-pull sensor (314).

4. A ductal cutting machine for nodular cast iron pipes as claimed in claim 1, characterized in that, The base (1) is further provided with a support plate (101) on the opposite side of the vertical stand (2), and two mounting shells (102) are arranged side by side between the support plate (101) and the vertical stand (2);The mounting shell (102) is provided with an installation cavity (103) inside, and two vertical rotating gears (104) are rotatably arranged in the installation cavity (103), and one clamping rod (105) is fixedly connected to the rotating shaft of each of the two rotating gears (104), and the other end of the clamping rod (105) is provided with a double-shaft motor (106), and the two output shafts at both ends of the double-shaft motor (106) are respectively connected with a clamping roller (107). Two installation shells (102) are fixed with vertical electric lifting columns (108), the bottom of the electric lifting columns (108) is connected to the middle part of the horizontal rod of the U-shaped frame (109), the U-shaped frame (109) is upwardly open, and the two ends respectively extend into the two installation shells (102); the two sides of the two ends of the U-shaped frame (109) are further provided with driving teeth, and the driving teeth are respectively engaged with the two rotating gears (104) on the two sides.

5. A ductile iron pipe cutter as defined in claim 4 wherein, The outer wall of the two installation shells (102) is further connected with a horizontal second electric push rod (110), and the piston rod of the second electric push rod (110) is fixed with a vertical rotating roller (111).

6. A ductile iron pipe cutter as defined in claim 4 wherein, The installation shell (102) is arranged on the upper half of the supporting plate (101), and the bottom of the installation shell (102) is suspended.

7. A ductile iron pipe cutter as defined in claim 1 wherein, The top of the vertical stand plate (2) is provided with a horizontal baffle (112).

8. A ductile iron pipe cutter as defined in claim 1 wherein, The middle part of the base (1) is provided with a downwardly recessed storage groove (113).

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