Multifunctional metal pipe cutting device, deep hole blasting well forming system and method

Abstract

The application provides a multifunctional metal pipe cutting device, a deep hole blasting well forming system and a method. The multifunctional metal pipe cutting device comprises a machine tool, a support installed on the machine tool, a lifting cylinder installed on the support, a cutting wheel structure detachably installed on the output end of the lifting cylinder, a first limiting piece comprising a support, a gland, a push cylinder and a calibration plate, the support being slidingly installed on the machine tool, the push cylinder being installed on the support, the gland being suspended above the support, the gland being connected with the output end of the push cylinder, and the calibration plate being connected with the support, and a horizontal conveying device for conveying the horizontal movement of the first limiting piece. The multifunctional metal pipe cutting device provided by the application can realize intelligent and automatic fixed-length cutting function, and does not need to additionally set a measuring device for the measuring step.

Description

Technical Field

[0001] This invention relates to the field of metal cutting in the intelligent manufacturing equipment industry, and particularly to a multifunctional metal pipe cutting device, a deep hole blasting well system and method. Background Technology

[0002] Metal pipe cutting wheel structures include mechanical pipe cutting wheel structures, which use rotating cutters (such as alloy blades, saw blades, grinding wheels, etc.) to perform circular cutting on metal pipes.

[0003] Metal pipes need to be cut to different lengths depending on the application. When cutting pipes, the length of the pipe needs to be determined in advance by measuring the dimensions. In the existing pipe cutting wheel structure, the measurement of pipe dimensions includes measuring the pipe in advance using a distance measuring device, marking the cutting position, and then cutting the pipe using the cutting wheel structure. The existing cutting wheel structure requires an additional measurement step to measure the metal pipe and determine the cutting position, which is cumbersome.

[0004] Therefore, it is necessary to provide a multifunctional metal tube cutting device to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides a multifunctional metal tube cutting device, which solves the problem that existing cutting wheel structures require additional measurement steps to measure the metal tube and determine the cutting position, making operation cumbersome.

[0006] To solve the above-mentioned technical problems, the present invention provides a multifunctional metal tube cutting device, comprising: a machine tool, wherein a bracket is mounted on the machine tool;

[0007] A lifting cylinder, which is mounted on the bracket;

[0008] A cutting wheel structure, wherein the cutting wheel structure is detachably installed at the output end of the lifting cylinder;

[0009] The first limiting component includes a support, a pressure cover, a push cylinder, and a calibration plate. The support is slidably mounted on the machine tool. The push cylinder is mounted on the support via a fixing frame. The pressure cover is suspended above the support and connected to the output end of the push cylinder. The calibration plate is connected to the support.

[0010] A horizontal conveying device, wherein the horizontal conveying device is used to convey the first limiting member to move horizontally;

[0011] A ranging device is mounted on the machine tool, with the detection end of the ranging device facing the calibration plate;

[0012] Pillow plate, the pillow plate is slidably disposed on the machine tool and located below the cutting wheel structure.

[0013] The second limiting member is fixedly installed on the machine tool, and the first limiting member and the second limiting member are respectively located on both sides of the pillow plate.

[0014] Preferably, the first limiting member further includes a plurality of sliding rods, which are respectively installed on both sides of the support, and sliding sleeves are installed on both sides of the pressure cover, with the sliding sleeves fitted onto the sliding rods.

[0015] Preferably, when the multifunctional metal tube cutting device is used to cut detonating cord, the cutting wheel structure is disassembled and the detonating cord cutting device is assembled. The detonating cord cutting device includes a connecting structure, an assembly box, a cutter and a cap. The assembly box is installed at the output end of the lifting cylinder through the connecting structure, and an assembly hole is provided on one side of the assembly box.

[0016] The cutter is installed at the bottom of the assembly box; the cap is installed inside the assembly box, and the opening of the cap is aligned with the assembly hole; an insertion port is provided on the machine tool below the cutter.

[0017] Preferably, the connecting structure includes a glue storage cylinder, a piston structure, and a valve. The glue storage cylinder is installed at the output end of the lifting cylinder. The assembly box is fitted and fixed to the glue outlet end of the glue storage cylinder. The piston structure is disposed inside the glue storage cylinder and is used to squeeze glue out from the glue outlet end of the glue storage cylinder. The valve is disposed at the glue outlet end of the glue storage cylinder and is used to block the glue outlet end of the glue storage cylinder. The diameter of the inner cavity of the sealing cap is larger than the diameter of the detonating cord, and the sealing cap has a glue inlet.

[0018] Preferably, the piston structure includes a piston sleeve, a movable block, a push shaft, and a first elastic element. The piston sleeve is slidably disposed inside the glue storage cylinder, the movable block is slidably connected inside the piston sleeve, the first elastic element elastically connects the movable block and the piston sleeve, one end of the push shaft is installed on the movable block, and the other end extends through the glue storage cylinder, a first through hole is provided on the piston sleeve, and a second through hole is provided on the movable block, the first through hole and the second through hole being offset from each other.

[0019] The connecting structure also includes a transmission rod, the bottom end of which is mounted on the glue storage cylinder, and the top end of which passes through the piston sleeve and abuts against the movable block.

[0020] Preferably, the multifunctional metal tube cutting device further includes two support seats, which are respectively installed on two pressure caps, wherein the support seat located on the first limiting member is provided with a convex shaft;

[0021] When the bottom of the glue storage cylinder is located on the support base, the convex shaft is aligned with the push shaft.

[0022] Preferably, the valve includes a valve plate, a second elastic element, and two mounting pieces. The two mounting pieces are connected and disposed at the glue outlet end of the glue storage cylinder. The valve plate passes through the glue outlet end of the glue storage cylinder, and one end of the valve plate is connected to one of the mounting pieces through the second elastic element. The other end of the valve plate passes through the other mounting piece and the assembly box in sequence. A valve hole is provided on the valve plate, and the valve hole is offset from the glue outlet end of the glue storage cylinder.

[0023] Preferably, the assembly box is provided with support rings at intervals inside, and the glue outlet of the glue storage cylinder is located between two of the support rings.

[0024] The present invention also provides a deep-hole blasting well-forming system, characterized in that it includes: drilling equipment, charging equipment, detonation components, plugging equipment, and the aforementioned multifunctional metal pipe cutting device;

[0025] The drilling equipment is used to drill blast holes from the ground surface downwards in a preset area.

[0026] The loading device is used to load explosives into the borehole;

[0027] The plugging device is used to fill the blast hole with plugging medium;

[0028] The detonation assembly is used to detonate the loaded explosives;

[0029] The multifunctional metal tube cutting device is used to cut metal guide tubes, which are used to guide the drill rods of drilling equipment.

[0030] This invention also provides a deep-hole blasting well-forming method, using the aforementioned deep-hole blasting well-forming system, specifically including the following steps:

[0031] S1. Hole Layout: Hole positions are laid out at predetermined locations in the construction area;

[0032] S2. Drilling: Using the drilling equipment, drill blast holes sequentially at the designated locations;

[0033] S3, Multi-stage charging: The charging equipment is used to load multiple stages of explosive into each borehole, and the plugging equipment is used to fill the gaps between each stage of explosive with plugging material;

[0034] S4. Connection: Connect each section of explosive to the detonation assembly using a detonating cord;

[0035] S5, Detonation: Detonate in stages according to a preset sequence;

[0036] S6. After blasting, remove the slag and check whether it meets the design requirements.

[0037] Compared with related technologies, the multifunctional metal tube cutting device provided by the present invention has the following advantages:

[0038] This invention provides a multifunctional metal pipe cutting device. During operation, when one end of the metal pipe is fed into the machine tool by a metal pipe conveying device, and the length of the pipe entering is twice that of the support, the metal pipe conveying device stops conveying. A horizontal conveying device then conveys a first limiting member, positioning the metal pipe between the pressure cap and the support. At this point, the metal pipe is in contact with the bottom of the support. A push cylinder pushes down the pressure cap, pressing the metal pipe tightly against it. Simultaneously, one end of the support is in contact with the receiving plate. Then, the horizontal conveying device moves the metal pipe towards a second limiting member. When the portion of the metal pipe extending beyond the support enters the second limiting member, the horizontal conveying device stops conveying. The process continues until the second limiting member is reached. The first limiting member clamps the metal pipe, and the push cylinder in the first limiting member lifts the pressure cover to release the metal pipe. The horizontal conveying device transports the first limiting member to one side of the receiving plate. At this time, the calibration plate and the distance measuring device work together to detect the distance the first limiting member moves towards the receiving plate. When the preset distance L is detected, the horizontal conveying device stops, the first limiting member clamps the metal pipe, the second limiting member releases, the horizontal conveying device transports the first limiting member to the starting position, and then the second limiting member clamps the metal pipe again. Subsequently, the pipe is cut by the cutting wheel structure, thereby realizing the intelligent and automated fixed-length cutting function without the need for additional measuring equipment for the measurement steps. Attached Figure Description

[0039] Figure 1 A schematic diagram of the multifunctional metal tube cutting device provided by the present invention, equipped with a cutting wheel structure;

[0040] Figure 2 for Figure 1 A partial structural schematic diagram of the multifunctional metal tube cutting device shown;

[0041] Figure 3 A block diagram illustrating the control principle of the multifunctional metal tube cutting device provided by this invention;

[0042] Figure 4 A schematic diagram of the structure of the multifunctional metal pipe cutting device provided by the present invention, which is equipped with a detonating cord cutting device.

[0043] Figure 5 for Figure 4 A cross-sectional view of the multifunctional metal tube cutting device shown;

[0044] Figure 6 for Figure 5 The enlarged schematic diagram of part A shown below;

[0045] Figure 7 This is a schematic diagram of the structure of the cap provided by the present invention;

[0046] Figure 8 A schematic diagram of the piston structure provided by the present invention;

[0047] Figure 9 This is a schematic diagram showing the state of the cutter cutting the detonating cord provided by the present invention;

[0048] Figure 10 This is a schematic diagram of the lifting cylinder provided by the present invention in the extrusion state, wherein, Figure 10 (a) is a schematic diagram showing the lifting cylinder entering the extrusion state when the first through hole and the second through hole are aligned. Figure 10 (b) is a schematic diagram of the lifting cylinder pushing the piston structure to squeeze the glue into the filling gap;

[0049] Figure 11 for Figure 10 The enlarged diagram in the figure shows that, Figure 11 (a) is Figure 10 (a) is an enlarged schematic diagram. Figure 11 (b) is Figure 10 Enlarged schematic diagram in (b).

[0050] Numbering on the map:

[0051] 100. Cutting wheel structure; 200. Horizontal conveying device; 201. Connecting arm; 300. Distance measuring device;

[0052] 1. Machine tool; 11. Bracket; 13. Socket; 101. Receiving plate;

[0053] 2. Lifting cylinder;

[0054] 3. Connecting structure; 31. Glue storage cylinder; 32. Piston structure; 33. Valve; 34. Transmission rod;

[0055] 321. Piston sleeve; 322. Moving block; 323. Push shaft; 324. First elastic element; 325. First through hole; 326. Second through hole;

[0056] 331. Valve plate; 332. Assembly kit; 333. Second elastic element; 334. Valve hole;

[0057] 4. Assembly box; 41. Assembly hole; 42. Support ring;

[0058] 5. Cutting knife;

[0059] 6. First limiting component; 61. Support; 62. Pressure cap; 63. Push cylinder; 64. Calibration plate; 65. Slide rod; 621. Slide sleeve; 631. Fixing bracket;

[0060] 7. Support base; 71. Protruding shaft;

[0061] 8. Pillow board;

[0062] 9. Second limiting component; 91. Storage cavity;

[0063] 10. Capping; 101. Glue inlet;

[0064] 20. Detonating cord; 30. Filler gap. Detailed Implementation

[0065] 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 a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0066] This invention provides a multifunctional metal tube cutting device.

[0067] Please refer to the following: Figure 1 and Figure 2 In one embodiment of the present invention, the multifunctional metal tube cutting device includes: a machine tool 1, on which a bracket 11 is mounted;

[0068] Lifting cylinder 2, which is mounted on the bracket 11;

[0069] A cutting wheel structure 100 is detachably mounted on the output end of the lifting cylinder 2;

[0070] The first limiting member 6 includes a support 61, a pressure cover 62, a push cylinder 63, and a calibration plate 64. The support 61 is slidably mounted on the machine tool 1. The push cylinder 63 is mounted on the support 61 through a fixing frame 631. The pressure cover 62 is suspended above the support 61 and is connected to the output end of the push cylinder 63. The calibration plate 64 is connected to the support 61.

[0071] A horizontal conveying device 200 is used to convey the first limiting member 6 horizontally.

[0072] A ranging device 300 is mounted on the machine tool 1, and the detection end of the ranging device 300 faces the calibration plate 64.

[0073] Pillow plate 8, which is slidably disposed on the machine tool 1 and located below the cutting wheel structure 100;

[0074] The second limiting member 9 is fixedly installed on the machine tool 1, and the first limiting member 6 and the second limiting member 9 are respectively located on both sides of the pillow plate 8;

[0075] In this invention, a metal pipe conveying device is provided on one side of the machine tool 1 to convey the metal pipe to the machine tool 1. Simultaneously, a receiving plate 101 is provided on one side of the machine tool 1, and the receiving plate 101 has a semi-circular groove adapted to the metal pipe, such as... Figure 1 and Figure 4 One end of the pipeline conveying equipment that conveys the metal end enters the receiving plate 101; the pipeline conveying equipment can be a belt conveyor, and the belt of the belt conveyor is equipped with multiple bearing seats to support the pipeline. The bearing seats are also provided with semi-circular grooves that are adapted to the diameter of the metal pipeline.

[0076] The second limiting member 9 has the same structure as the first limiting member 6. The support 61 in the second limiting member 9 is fixedly connected to the machine tool 1. A semi-circular groove is opened on the support 61 corresponding to the diameter of the metal pipe.

[0077] During operation, when one end of the metal pipe conveying device enters the machine tool 1 and the length of the pipe is twice that of the support 61, the metal pipe conveying device stops conveying. The horizontal conveying device 200 then conveys the first limiting member 6, positioning the metal pipe between the pressure cap 62 and the support 61. At this point, the metal pipe is in contact with the bottom of the support 61. The push cylinder 63 pushes down the pressure cap 62, pressing the metal pipe tightly against it. At this point, one end of the support 61 is in contact with the receiving plate 101. Then, the horizontal conveying device 200 conveys the metal pipe towards the second limiting member 9. When the portion of the metal pipe extending beyond the support 61 enters the second limiting member 9, the horizontal conveying device 200 stops conveying, clamping the metal pipe through the second limiting member 9. In the first limiting component 6, the push cylinder 63 lifts the pressure cap 62 to release the metal pipe. The horizontal conveying device 200 transports the first limiting component 6 towards one side of the receiving plate 101. At this time, the calibration plate 64 and the distance measuring device 300 work together to detect the distance the first limiting component 6 has moved towards the receiving plate 101. When the preset distance L is detected, the horizontal conveying device 200 stops, the first limiting component 6 clamps the metal pipe, and the second limiting component 9 is released. The horizontal conveying device 200 transports the first limiting component 6 to the starting position, and then the second limiting component 9 clamps the metal pipe again. Subsequently, the pipe is cut by the cutting wheel structure 100, thereby realizing the intelligent and automated fixed-length cutting function without the need for additional measuring equipment for the measurement steps.

[0078] When the first limiting member 6 is in the starting position, i.e. when the support 61 abuts against the pillow plate 8, the middle of the pillow plate 8 is aligned with the cutting blade of the cutting wheel structure 100. The first limiting member 6 and the second limiting member 9 are located on both sides of the pillow plate 8. That is, the length of the pipe cutting is L plus the length of the support 61 minus half the length of the pillow plate 8.

[0079] Please see Figure 3 In this embodiment, a control module is also included to control all driving devices in this embodiment, including the cutting wheel structure 100, the horizontal conveying device 200, the lifting cylinder 2, and the push cylinder 63 in the first limiting member 6 and the second limiting member 9. The control module can be a PLC system.

[0080] The sensor assembly includes a ranging device 300 and multiple photoelectric switches. These photoelectric switches can be used to control the movement of the horizontal conveyor 200, lifting cylinder 2, etc. For example, if a photoelectric switch is installed on the machine tool 1, when it detects that a metal pipe is being conveyed into the machine tool 1 by the metal pipe conveying device, and the length of the metal pipe entering is twice that of the support 61, the photoelectric switch detects the metal pipe, at which point the horizontal conveyor 200 stops. Alternatively, its movement can be controlled using program settings.

[0081] Among them, the ranging device 300 can be a laser ranging device, a radar ranging device, an ultrasonic ranging device, etc.

[0082] The cutting wheel structure 100 includes a mounting housing, a motor, and a saw blade. The saw blade is rotatably mounted inside the mounting housing. The motor is mounted on one side of the mounting housing, and its output shaft passes through the mounting housing and is connected to the saw blade. The motor drives the saw blade to rotate at high speed to cut the metal pipe. A mounting post is provided on the top of the mounting housing, and a mounting plate is provided on the mounting post. Multiple mounting holes are opened on the mounting plate. The output end of the lifting cylinder 2 is correspondingly provided with an assembly plate, and the assembly plate is correspondingly provided with mounting holes. The mounting plate and the assembly plate can be detachably installed by bolts.

[0083] Alternatively, an installation sleeve can be installed at the output end of the lifting cylinder 2, and an installation column can be installed on the top of the installation housing. Installation holes are opened on the installation column and the installation sleeve respectively. After the installation sleeve is fitted onto the installation column, bolts are used to pass through the installation holes and then tightened with nuts to fix it.

[0084] In this embodiment, the horizontal conveying device 200 is installed at the bottom of the machine tool 1. The machine tool 1 has a strip-shaped hole. The horizontal conveying device 200 can be a belt conveyor or a chain conveyor, etc. The connecting arm 201 passes through the strip-shaped hole to connect the support 61 to the belt or chain.

[0085] The machine tool 1 has two symmetrically opened slide grooves, and the bottom of the support 61 has two rows of sliders symmetrically arranged. The sliders slide into the slide grooves to form a sliding assembly.

[0086] Please see Figure 2 As an optional embodiment, the first limiting member 6 further includes a plurality of sliding rods 65, which are respectively installed on both sides of the support 61. Sliding sleeves 621 are installed on both sides of the pressure cover 62, and the sliding sleeves 621 are sleeved on the sliding rods 65.

[0087] The pressure cap 62 slides along the slide rod 65 using the sliding sleeve 621, thereby forming a vertical sliding installation between the pressure cap 62 and the support 61.

[0088] The lifting cylinder 2 and the push cylinder 63 can be pneumatic cylinders, hydraulic cylinders, or electric push rods, etc.

[0089] As another alternative in this embodiment, the slide rod 65 can be installed on the pressure cover 62, and the support 61 can be provided with a corresponding sliding sleeve 621, with the slide rod 65 passing through the sliding sleeve 621 to form a sliding assembly.

[0090] The multifunctional metal pipe cutting device of this invention is used for cutting metal pipes, including those used in building components, instruments and equipment, municipal pipe networks, etc. The multifunctional metal pipe cutting device of this invention is also used in deep hole blasting well systems; it is mainly used for cutting metal guide pipes and detonating cords, wherein the metal guide pipe is used to guide the drill rod of the drilling equipment, that is, to guide the drilling direction. The device cuts metal guide pipes of corresponding lengths according to the design dimensions and drilling requirements of the well, and adjusts the length of the metal guide pipes.

[0091] Corresponding to the detonating cord, the detonating cord is usually composed of a core wire, a core, a wrapping layer, and an outer sheath. According to the operating procedures for deep hole blasting, the two ends of each coil of detonating cord may be damaged due to storage or transportation (such as moisture or deformation). Before use, 5cm should be cut off from both ends to ensure the integrity of the middle part and the detonation transmission performance, and to avoid detonation interruption or mis-detonation caused by end defects.

[0092] Furthermore, after the detonating cord is cut at both ends, one end needs to be sealed to prevent contact with the external environment, which could cause the internal explosives to become damp or scatter. The other end of the detonating cord can remain open and connected to the explosives. In existing technologies, after the detonating cord is cut using a hydraulic cutting wheel structure, it needs to be removed and then sealed. This can be done manually by wrapping and sealing with tape, preparing quick-setting cement for splicing, or using a snap-fit ​​plug with a sealing device. The sealing operation is cumbersome. There is still room for improvement in combining the sealing function with the cutting wheel structure to simplify the sealing operation.

[0093] Please see Figures 4 to 6 As a preferred embodiment, when the multifunctional metal tube cutting device is used to cut detonating cord, the cutting wheel structure 100 is disassembled and the detonating cord cutting device is assembled. The detonating cord cutting device includes a connecting structure 3, an assembly box 4, a cutter 5 and a cap 10. The assembly box 4 is installed at the output end of the lifting cylinder 2 through the connecting structure 3. An assembly hole 41 is provided on one side of the assembly box 4.

[0094] The cutter 5 is installed at the bottom of the assembly box 4; the cap 10 is installed inside the assembly box 4, and the opening of the cap 10 is aligned with the assembly hole 41; an insertion port is provided on the machine tool below the cutter.

[0095] By switching between the cutting wheel structure 100 and the detonating cord cutting device, the cutting of metal pipes and detonating cords can be achieved, enabling multi-functional cutting.

[0096] After the detonating cord cutting equipment is installed, when cutting the detonating cord 20, the first limiting member 6 and the second limiting member 9 are used to limit the two ends of the detonating cord 20 at the cutting position to prevent the detonating cord 20 from moving during cutting and causing an uneven cut surface. The cutting position of the detonating cord 20 is located on the pillow plate 8 to prevent the detonating cord 20 from deforming downwards during cutting. During cutting, the lifting cylinder 2 drives the cutter 5 downwards through the connecting structure 3 and the assembly box 4 to cut the detonating cord 20. Then, the pillow plate 8 is moved to offset it from the cutter 5, allowing the cutter 5 to... Continue to move downwards to create space, and move the first limiting member 6 to move the detonating cord 20 away from the cutter 5, creating space for the assembly box 4 to move downwards. At this time, the lifting cylinder 2 continues to move downwards, and the opening of the assembly box 4 faces the end of the cut detonating cord 20. Then, push the first limiting member 6 to insert the detonating cord 20 into the cap 10 placed inside the assembly box 4, so that the cap 10 is fitted on the detonating cord 20 and seals the end of the detonating cord 20. This allows for quick cutting and sealing of the detonating cord 20, simplifying the operation steps.

[0097] The first limiting component 6 and the second limiting component 9 are then unlocked, and the cut detonating cord 20 is removed.

[0098] In this embodiment, the support 61 and the pressure cap 62 are both provided with detachable positioning plates on opposite sides, and semi-circular grooves are provided on the detachable plates. When the detonating cord is cut, a positioning plate with a semi-circular groove that matches the diameter of the detonating cord is installed, and a rubber pad of a corresponding shape is provided in the semi-circular groove to increase the friction with the detonating cord 20 during the limiting process and improve the stability of the limiting process.

[0099] The top of the pillow plate 8 is flush with the bottom of the semi-circular groove of the support 61; please refer to Figure 5 In this embodiment, the support 61 in the second limiting member 9 has a storage cavity 91. One end of the pillow plate 8 is located in the storage cavity 91, and the other end abuts against the support 61 in the first limiting member 6. The length of the storage cavity 91 is longer than the length of the pillow plate 8. When it is necessary to move the pillow plate 8 to separate it from the cutter 5, the pillow plate 8 is moved into the storage cavity 91 to separate it from the cutter 5.

[0100] The top of the storage cavity 91 is connected to the semi-circular groove. After the pressure cover 62 moves upward, the pillow plate 8 is moved to the starting position through the top of the storage cavity 91.

[0101] By setting the socket 13, after the pillow plate 8 and the cutter 5 are misaligned, the cutter 5 is aligned with the socket 13, leaving enough space for the cutter 5 to continue to move downward, so that the assembly hole 41 of the assembly box 4 is aligned with the end of the detonating cord 20, thus eliminating the need to make the support 61 and the pillow plate 8 thicker, and satisfying the downward movement space of the cutter 5.

[0102] Please see Figure 6 In a preferred embodiment, the connecting structure 3 includes a glue storage cylinder 31, a piston structure 32, and a valve 33. The glue storage cylinder 31 is installed at the output end of the lifting cylinder 2. The assembly box 4 is fitted and fixed at the glue outlet end of the glue storage cylinder 31. The piston structure 32 is disposed inside the glue storage cylinder 31 and is used to squeeze glue out from the glue outlet end of the glue storage cylinder 31. The valve 33 is disposed at the glue outlet end of the glue storage cylinder 31 and is used to block the glue outlet end of the glue storage cylinder 31. The diameter of the inner cavity of the cap 10 is larger than the diameter of the detonating cord 20. The cap 10 has a glue inlet 101.

[0103] By making the diameter of the cap 10 larger than that of the detonating cord 20, it is better ensured that the detonating cord 20 can be inserted into the cap 10. Especially after cutting, when the end of the detonating cord 20 is deformed, after the detonating cord 20 is inserted into the cap 10, a filling gap 30 is formed between the detonating cord 20 and the inner wall of the cap 10. The valve 33 is opened, the piston structure 32 moves down, and the glue in the glue storage cylinder 31 enters the filling gap 30 through the glue outlet and the glue inlet 101 on the cap 10, so that the cap 10 is bonded to the end of the detonating cord 20, and the sealant ensures the sealing of the connection.

[0104] The cap 10 can be made of plastic or rubber.

[0105] In other embodiments, only the cap 10 can be provided without adhesive bonding. In this case, the cap 10 is made of rubber, and its port is larger than the diameter of the detonating cord 20. It has a convex ring inside that is smaller than the detonating cord 20. After the detonating cord 20 is inserted into the opening of the cap 10, it passes through the convex ring so that the convex ring is tightly attached to the detonating cord 20, thus achieving a sealing effect.

[0106] Please see Figure 6 and Figure 8As an optional embodiment, the piston structure 32 includes a piston sleeve 321, a movable block 322, a push shaft 323, and a first elastic element 324. The piston sleeve 321 is slidably disposed inside the glue storage cylinder 31. The movable block 322 is slidably connected inside the piston sleeve 321. The first elastic element 324 elastically connects the movable block 322 and the piston sleeve 321. One end of the push shaft 323 is installed on the movable block 322, and the other end extends through the glue storage cylinder 31. A first through hole 325 is provided through the piston sleeve 321, and a second through hole 326 is provided on the movable block 322. The first through hole 325 and the second through hole 326 are staggered.

[0107] The connecting structure 3 also includes a transmission rod 34, the bottom end of which is mounted on the glue storage cylinder 31, and the top end of which passes through the piston sleeve 321 and abuts against the movable block 322.

[0108] The side wall of the glue storage cylinder 31 has a through hole, through which the push shaft 323 passes through the glue storage cylinder 31.

[0109] When the lifting cylinder 2 is used for cutting, the lifting cylinder 2 drives the movable block 322 to move through the piston sleeve 321. The movable block 322 pushes the glue storage cylinder 31 down through the transmission rod 34, so that the glue storage cylinder 31 drives the cutter 5 down through the assembly box 4 to cut the detonating cord 20.

[0110] When the lifting cylinder 2 enters the glue extrusion state, it pushes the push shaft 323, causing the push shaft 323 to drive the movable block 322 to compress the first elastic element 324. When the push shaft 323 is fully inside the glue storage cylinder 31, the second through hole 326 on the movable block 322 aligns with the first through hole 325. At this time, when the lifting cylinder 2 pushes down the piston sleeve 321, the piston sleeve 321 and the movable block 322 slide along the transmission rod 34 through the first through hole 325 and the second through hole 326. Therefore, the piston sleeve 321 will not drive the entire glue storage cylinder 31 to move. The piston sleeve 321 squeezes the glue downwards, and the glue flows out from the glue outlet and enters the filling gap 30. Figure 10 (b) in the figure achieves automatic glue dispensing;

[0111] Thus, the lifting cylinder 2 can be used to achieve the functions of cutting and automatic glue dispensing.

[0112] Subsequently, the lifting cylinder 2 drives the piston structure 32 to move to the starting position. When the push shaft 323 is aligned with the through hole again, the first elastic element 324 pushes the movable block 322, causing the push shaft 323 to pass through the through hole and penetrate the glue storage cylinder 31 again. The first through hole 325 and the second through hole 326 separate again.

[0113] Preferably, the number of transmission rods 34 is set to multiple, and in this embodiment, two are set, with the number of first through holes 325 and second through holes 326 corresponding to each other.

[0114] As another optional embodiment, the piston structure 32 includes a piston block and an electric push rod. The piston block is slidably disposed inside the glue storage cylinder 31, and the electric push rod is installed on the top of the glue storage cylinder 31. Its output end passes through the glue storage cylinder 31 and is connected to the piston block.

[0115] Please see Figure 5 As a preferred embodiment, the detonating cord 20 cutting device further includes two support seats 7, which are respectively installed on two pressure caps 62, wherein the support seat 7 located on the first limiting member 6 is provided with a convex shaft 71.

[0116] When the bottom of the glue storage cylinder 31 is located on the support base 7, the convex shaft 71 is aligned with the push shaft 323.

[0117] After the cutter 5 cuts the detonating cord 20, the pillow plate 8 is misaligned with the cutter 5. The first limiting member 6 drives the detonating cord 20 to move away from the cutter 5. The lifting cylinder 2 lowers the cutter 5, aligning the assembly hole 41 of the assembly box 4 with the end of the detonating cord 20. The bottom of the glue storage cylinder 31 is located on two support seats 7, which support the glue storage cylinder 31. Then, the first limiting member 6 is moved to insert the detonating cord 20 into the sealing cap 10 inside the assembly box 4. During this process, the convex shaft 71 pushes the push shaft 323 into the glue storage cylinder 31, aligning the second through hole 326 on the movable block 322 with the first through hole 325 on the piston sleeve 321, thus switching the state of the lifting cylinder 2 and putting it into the glue extrusion state. Figure 10 In (a), the ends of the support 61 and the pressure cap 62 in the first limiting member 6 block the assembly hole 41 to prevent glue from overflowing from the assembly hole 41 during glue injection.

[0118] That is, during the process of inserting the detonating cord 20 into the cap 10, the state of the lifting cylinder 2 can be switched, even if the lifting cylinder 2 switches from the cutting state to the extrusion state.

[0119] Please see Figure 6 As an optional embodiment, the valve 33 includes a valve plate 331, a second elastic element 333, and two mounting accessories 332. The two mounting accessories 332 are connected and disposed at the glue outlet end of the glue storage cylinder 31. The valve plate 331 passes through the glue outlet end of the glue storage cylinder 31, and one end of the valve plate 331 is connected to one of the mounting accessories 332 through the second elastic element 333. The other end of the valve plate 331 passes through the other mounting accessory 332 and the assembly box 4 in sequence. A valve hole 334 is provided on the valve plate 331, and the valve hole 334 is offset from the glue outlet end of the glue storage cylinder 31.

[0120] When the first limiting member 6 drives the detonating cord 20 to be inserted into the assembly hole 41 and into the cap 10, the pressure cap 62 in the first limiting member 6 pushes the sealing plate 331 to compress the second elastic member 333, so that the valve hole 334 on the valve plate 331 is aligned with the glue outlet end of the glue storage cylinder 31, allowing the glue to flow out through the glue outlet.

[0121] The first elastic element 324 and the second elastic element 333 are springs, or they can be elastic components such as leaf springs.

[0122] As another optional embodiment, valve 33 includes a circular plate, a rotating shaft, and a motor. The rotating shaft is rotatably mounted on the glue outlet end of the glue storage cylinder 31. The circular plate is mounted on the rotating shaft and located inside the glue storage cylinder 31. The motor is mounted on the glue storage cylinder 31 and connected to the rotating shaft. The motor controls the rotation of the circular plate through the rotating shaft to achieve the sealing and opening of the glue outlet end. When the circular plate is horizontal, the glue outlet end is sealed. When it is rotated to vertical, the glue outlet end is opened to allow glue to flow out.

[0123] Please see Figure 6 As an optional embodiment, the assembly box 4 is provided with support rings 42 at intervals inside, and the glue outlet of the glue storage cylinder 31 is located between the two support rings 42.

[0124] The support ring 42 can be used to support and limit the insertion into the cap 10, wherein the glue inlet 101 on the cap 10 is aligned with the glue outlet end of the glue storage cylinder 31.

[0125] The inner diameter of the support ring 42 is the same as the outer diameter of the cap 10;

[0126] Preferably, a groove is provided on the support ring 42 near the assembly hole 41, and a corresponding protrusion is provided on the sealing cap 10. When the sealing cap 10 is installed into the assembly box 4, the protrusion is inserted into the groove, and at this time the glue inlet 101 is aligned with the glue outlet end of the glue storage cylinder 31.

[0127] The top of the bracket 11 is equipped with a handle for easy carrying and moving of the cutting device.

[0128] The storage cylinder 31 includes an upper cylinder and a lower cylinder, which are connected by threads. The piston structure 32 is installed in the upper cylinder, and the transmission rod 34 is installed in the lower cylinder.

[0129] By unscrewing the lower cylinder, adhesive can be added to its interior.

[0130] As an optional method in this embodiment, an electric push rod can be provided for the first limiting member 6. The electric push rod is installed on the machine tool 1, and its output end is connected to the support 61 of the first limiting member 6. The electric push rod is used to automatically move the first limiting member 6.

[0131] As another optional method in this embodiment, the first limiting member 6 can also be moved by manually pushing it.

[0132] When using manual movement, it is preferable to set a positioning pin, set a positioning ear on the support 61, the positioning pin passes through the positioning ear, and a positioning hole is opened on the support 61. The bottom end of the positioning pin is inserted into the positioning hole to limit the first limiting member 6. When the first limiting member 6 does not need to be moved, the first limiting member 6 can be stably kept from moving.

[0133] The working principle of the multifunctional metal tube cutting device provided by this invention is as follows:

[0134] When the metal pipe is being processed, after one end of the metal pipe is conveyed into the machine tool 1 by the metal pipe conveying equipment and the length of the conveyed pipe is twice that of the support 61, the metal pipe conveying equipment stops conveying. The horizontal conveying device 200 conveys the first limiting member 6, so that the metal pipe is positioned between the pressure cap 62 and the support 61. At this time, the metal pipe is in contact with the bottom of the support 61. The push cylinder 63 pushes down the pressure cap 62 to press the metal pipe tightly. At this time, one end of the support 61 is in contact with the receiving plate 101. Then, the horizontal conveying device 200 conveys the metal pipe towards the second limiting member 9. When the part of the metal pipe that extends beyond the support 61 enters the second limiting member 9, the horizontal conveying device 200 stops conveying, and the metal pipe is clamped by the second limiting member 9. The first limiting member 6 pushes the cylinder 63 to lift the pressure cap 62 and release the metal pipe. The horizontal conveying device 200 conveys the first limiting member 6 to move towards one side of the receiving plate 101. At this time, the calibration plate 64 and the distance measuring device 300 work together to detect the distance the first limiting member 6 moves towards the receiving plate 101. When the preset distance L is detected, the horizontal conveying device 200 stops, the first limiting member 6 clamps the metal pipe, the second limiting member 9 is released, the horizontal conveying device 200 conveys the first limiting member 6 to the starting position, and then the second limiting member 9 clamps the metal pipe again. Subsequently, the pipe is cut by the cutting wheel structure 100, thereby realizing the intelligent and automated fixed-length cutting function without the need for additional measurement steps.

[0135] When cutting the detonating cord 20, the first limiting member 6 and the second limiting member 9 are used to limit the two ends of the detonating cord 20 at the cutting position.

[0136] When the lifting cylinder 2 is in the cutting state, the lifting cylinder 2 drives the movable block 322 to move through the piston sleeve 321. The movable block 322 pushes the glue storage cylinder 31 down through the transmission rod 34, so that the glue storage cylinder 31 drives the cutter 5 down through the assembly box 4 to cut the detonating cord 20.

[0137] After the cutter 5 cuts the detonating cord 20, the pillow plate 8 is misaligned with the cutter 5. The first limiting member 6 drives the detonating cord 20 to move away from the cutter 5. The lifting cylinder 2 lowers the cutter 5, aligning the assembly hole 41 of the assembly box 4 with the end of the detonating cord 20. At this time, the bottom of the glue storage cylinder 31 is located on the two support seats 7, which support the glue storage cylinder 31. During this process, the convex shaft 71 pushes the push shaft 323 into the glue storage cylinder 31, aligning the second through hole 326 on the movable block 322 with the first through hole 325 on the piston sleeve 321. The movable block 322 compresses the first elastic member 324, causing it to enter the glue extrusion state. Figure 10 In (a), the ends of the support 61 and the pressure cap 62 in the first limiting member 6 block the assembly hole 41 to prevent glue from overflowing from the assembly hole 41 during glue injection.

[0138] At this time, when the lifting cylinder 2 pushes down the piston sleeve 321, the piston sleeve 321 and the movable block 322 slide along the transmission rod 34 through the first through hole 325 and the second through hole 326. Therefore, the piston sleeve 321 will not drive the entire glue storage cylinder 31 to move. The piston sleeve 321 squeezes the glue downwards, causing it to flow out from the glue outlet and into the filling gap 30. Figure 11 (b) in the figure achieves the sealing of one end of the cap 10 and the detonating cord 20.

[0139] This invention relates to a multifunctional metal pipe cutting device for cutting metal pipes, including those used in building components, instruments and equipment, and municipal pipe networks. The device is also used in deep-hole blasting well-forming systems. It is primarily used for cutting metal guide pipes and detonating cords. The metal guide pipes guide the drill rods of the drilling equipment, i.e., guide the drilling direction. The device cuts metal guide pipes of corresponding lengths according to the well design dimensions and drilling requirements, and adjusts the length of the metal guide pipes. The detonating cord typically consists of a core wire, a core, a wrapping layer, and an outer sheath. According to deep-hole blasting operating procedures, both ends of each coil of detonating cord may be damaged due to storage or transportation (such as moisture or deformation). Before use, 5cm must be cut off at each end to ensure the integrity of the middle section and the detonation transmission performance, avoiding detonation interruption or misfire caused by end defects.

[0140] This invention also provides a deep-hole blasting well-forming system.

[0141] A deep-hole blasting well-forming system includes: drilling equipment, charging equipment, detonation components, plugging equipment, and the detonating cord 20 cutting device;

[0142] The drilling equipment is used to drill blast holes from the ground surface downwards in a preset area.

[0143] The loading device is used to load explosives into the borehole;

[0144] The plugging device is used to fill the blast hole with plugging medium;

[0145] The detonation assembly is used to detonate the loaded explosives;

[0146] The multifunctional metal tube cutting device is used to cut metal guide tubes, which are used to guide the drill rods of drilling equipment.

[0147] The multifunctional metal tube cutting device described above can also be used to cut the detonating cord 20, which is used to connect each section of explosive to the detonation assembly.

[0148] Among them, drilling rigs are selected according to the construction environment, such as raise boring machines, deep hole drilling rigs, down-the-hole drilling rigs, etc.

[0149] Blocking equipment can use pneumatic blockers or a special trolley equipped with a screw propeller to complete the blocking operation;

[0150] The loading equipment uses pneumatic loading devices, hydraulic loading vehicles, etc.

[0151] The detonation assembly uses a detonating cord detonator or electronic detonator in conjunction with a detonating cord 20, etc.

[0152] The specific structure of the multifunctional metal tube cutting device is as described in the above embodiments. Since the deep hole blasting well-forming system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here.

[0153] The present invention also provides a method for deep-hole blasting well construction.

[0154] A deep-hole blasting well-forming method, using the aforementioned deep-hole blasting well-forming system, specifically includes the following steps:

[0155] S1. Hole Layout: Hole positions are laid out at predetermined locations in the construction area;

[0156] S2. Drilling: Using the drilling equipment, drill blast holes sequentially at the designated locations;

[0157] S3, Multi-stage charging: The charging equipment is used to load multiple stages of explosive into each borehole, and the plugging equipment is used to fill the gaps between each stage of explosive with plugging material;

[0158] S4. Connection: Connect each section of explosive to the detonation assembly via detonating cord 20;

[0159] S5, Detonation: Detonate in stages according to a preset sequence;

[0160] S6. After blasting, remove the slag and check whether it meets the design requirements.

[0161] By dividing the entire height of the shaft into multiple blasting sections and carrying out charging and blasting operations section by section from bottom to top, the shaft excavation work can be completed. This method has the advantages of low investment, short construction period, and fast production cycle. Compared with existing production processes, the production process is safer. It is also easier for mining technicians and operators to master and apply it effectively, reducing major safety hazards.

[0162] Specifically, in the drilling area, the borehole positions are marked and arranged using measuring equipment according to the construction drawings;

[0163] Before plugging and loading explosives, inspect and clear the boreholes to ensure they are unobstructed. Measure the depth of each borehole on-site to confirm the plugging height at the bottom. For the bottom plugging, first select small stones with a diameter of less than 50mm, then compact them with fine sand; excessively large stones are strictly prohibited. Place 1-2 tubes of bottom charge first, then slowly load the prepared detonating charge into the hole, with the detonator's shaped charge facing upwards. Continuously load explosives according to the charging height, then load the upper detonating charge, with the shaped charge's shaped charge facing downwards. Add another 1-2 tubes of top bottom charge until the current charging layer height is reached. Ensure that the upper charging layer of all 10 holes is at the same height. Use fine sand with a diameter of less than 20mm for plugging the top. Use drill rock powder, rock cuttings, or surrounding mud and sand as plugging materials, loading the three charging layers sequentially.

[0164] In case of blockage, the detonating cord should be lifted and tightened to prevent the cord leads from kinking.

[0165] Charge structure, detonation method, and detonation sequence;

[0166] Segmented blasting construction process:

[0167] The detonation was carried out in stages. For the first and second stages, the upper section was plugged with 1m of dry river sand or rock debris, and the lower section with 0.5m of dry river sand or rock debris. The first stage had a charge length of 3.5m and a blasting advance of 4m; the second stage had a charge length of 2.5m and a blasting advance of 3m; the third stage had plugs of 1m at both the top and bottom, a charge length of 3.1m, and a blasting advance of 5.1m. The actual total charge length was 9.1m.

[0168] Each hole is filled with 25 cartridges of explosive, with a charge of 75 kg / hole and a linear charge density of 6.2 kg / m. There are a total of 10 slotted and side-mounted charging holes, with a total explosive charge of 750 kg. The explosive consumption is 6 kg / t.

[0169] To maximize the reliability of blasting, micro-delay interval detonation was used at different sections within the same borehole and between different boreholes. The segmented blasting well test employed a non-electric detonation network. For each segment, the lower end of the borehole was first plugged. The borehole was then filled to the designed depth, followed by loading 1-2 tubes of pre-charge. Next, the borehole detonating charge (1-2 detonators) was installed according to the designed section, with the shaped charge facing upwards. For single-detonator boreholes, the charge was lowered using ropes. For double-detonator boreholes, the charge was lowered slowly by pulling the detonator lead wire. Near the upper section of the designed charge length, the rear detonating charge (1-2 detonators) was installed, with the shaped charge facing downwards. Then, 1-2 tubes of pre-charge were loaded to the designed charge height for that section, and the upper borehole was plugged. The first step is to lead the lead wire of the non-electric detonator inside the borehole to the outside of the borehole. The second step is to tie the lead wire and the detonating detonator (detonating cord 20) outside the borehole together, and detonate it using a 5-minute delay detonator. In order to ensure that the explosives in each section of each borehole can be detonated normally, 2-4 detonators and two detonating shells are set in each section of each borehole, and the detonation of each section is ensured to be delayed by milliseconds near both ends of the section.

[0170] By controlling the detonation interval of the straight-hole cut-out blasting and subsequent blasting holes, the explosive shock wave is controlled to cause damage and deformation in the finite medium of the free surface of the hole. The blasting initiation is carried out in stages. The staged blasting consists of 3 stages, and the explosives in each stage are detonated by detonators of 9 different types. The detonation sequence of the blasting holes in each stage is as follows: F1 (2 detonators #2), F3 (2 detonators #3 and #4), F2 and F4 (4 detonators #5 and #6), Z1, Z3, and Z5 (6 detonators #7 and #8), and Z2, Z4, and Z6 (6 detonators #9 and #10). Specifically, the first auxiliary cut-out hole is selected based on the location of the selected hole, and the auxiliary cut-out hole closest to the hole is chosen as the first detonation (F1).

[0171] The preferred length of the borehole plugging is 3 to 6 times the borehole spacing, preferably 0.6 to 2.0 m. Soft rocks are prone to blasting funnels, so the plugging length should be longer. For the sub-segment blasting well test, the plugging length at the upper and lower ends of the second sub-segment blasting is 1 m and 0.5 m respectively, and the plugging length at the upper and lower ends of the third sub-segment blasting is 1 m and 1 m respectively. Dry river sand or rock debris should be used for plugging, and the plugging should be reliable. After the upper end is plugged, it should be covered with thin mud slurry.

[0172] The charging requirements are to ensure that the height of the upper shaft is uniform in the same blasting section, and to ensure that the upper charge layer is at the same charge height. In segmented blasting, after the previous segment is blasted, the blasting effect of each borehole in the same segment may be uneven due to the uneven quality of the rock and ore or the blasting charge. The lower charge layer height may be different, but the lower end must be blocked by 0.5m.

[0173] Auxiliary holes and peripheral holes are laid simultaneously in the detonation network. After the network is laid, the detonator leads and detonating cord 20 are evenly and securely bound together. The detonator and detonating cord 20 are connected in the same direction. The detonator detonates the detonating cord 20, which then transmits the detonation to the detonating tube and detonator. The angle between the detonating cord 20 and the detonating tube leads is controlled at 70-90°. The joints between detonating tubes are wrapped with electrical tape to prevent the detonating cord 20 from breaking the detonating tube leads. After the blasting network is connected, check the integrity of the network to avoid omissions or misconnections and ensure smooth operation.

[0174] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A multifunctional metal tube cutting device, characterized in that, include: Machine tool, wherein a support is mounted on the machine tool; A lifting cylinder, which is mounted on the bracket; A cutting wheel structure, wherein the cutting wheel structure is detachably installed at the output end of the lifting cylinder; The first limiting component includes a support, a pressure cover, a push cylinder, and a calibration plate. The support is slidably mounted on the machine tool. The push cylinder is mounted on the support via a fixing frame. The pressure cover is suspended above the support and connected to the output end of the push cylinder. The calibration plate is connected to the support. A horizontal conveying device, wherein the horizontal conveying device is used to convey the first limiting member to move horizontally; A ranging device is mounted on the machine tool, with the detection end of the ranging device facing the calibration plate; Pillow plate, the pillow plate is slidably disposed on the machine tool and located below the cutting wheel structure; The second limiting member is fixedly installed on the machine tool, and the first limiting member and the second limiting member are respectively located on both sides of the pillow plate; When the multifunctional metal tube cutting device is used to cut detonating cord, the cutting wheel structure is disassembled and the detonating cord cutting device is assembled. The detonating cord cutting device includes a connecting structure, an assembly box, a cutter and a cap. The assembly box is installed at the output end of the lifting cylinder through the connecting structure. An assembly hole is provided on one side of the assembly box. The cutter is installed at the bottom of the assembly box; the cap is installed inside the assembly box, and the opening of the cap is aligned with the assembly hole; an insertion port is provided on the machine tool below the cutter.

2. The multifunctional metal tube cutting device according to claim 1, characterized in that, The first limiting member also includes a plurality of sliding rods, which are respectively installed on both sides of the support. Sliding sleeves are installed on both sides of the pressure cover and are sleeved on the sliding rods.

3. The multifunctional metal tube cutting device according to claim 1, characterized in that, The connecting structure includes a glue storage cylinder, a piston structure, and a valve. The glue storage cylinder is installed at the output end of the lifting cylinder. The assembly box is fitted and fixed to the glue outlet end of the glue storage cylinder. The piston structure is disposed inside the glue storage cylinder and is used to squeeze glue out of the glue outlet end of the glue storage cylinder. The valve is disposed at the glue outlet end of the glue storage cylinder and is used to block the glue outlet end of the glue storage cylinder. The diameter of the inner cavity of the sealing cap is larger than the diameter of the detonating cord, and the sealing cap has a glue inlet.

4. The multifunctional metal tube cutting device according to claim 3, characterized in that, The piston structure includes a piston sleeve, a movable block, a push shaft, and a first elastic element. The piston sleeve is slidably disposed inside the glue storage cylinder, the movable block is slidably connected inside the piston sleeve, and the first elastic element elastically connects the movable block and the piston sleeve. One end of the push shaft is installed on the movable block, and the other end extends through the glue storage cylinder. A first through hole is provided on the piston sleeve, and a second through hole is provided on the movable block. The first through hole and the second through hole are offset from each other. The connecting structure also includes a transmission rod, the bottom end of which is mounted on the glue storage cylinder, and the top end of which passes through the piston sleeve and abuts against the movable block.

5. The multifunctional metal tube cutting device according to claim 4, characterized in that, The multifunctional metal tube cutting device also includes two support seats, which are respectively installed on two pressure caps, wherein the support seat located on the first limiting member is provided with a convex shaft. When the bottom of the glue storage cylinder is located on the support base, the convex shaft is aligned with the push shaft.

6. The multifunctional metal tube cutting device according to claim 3, characterized in that, The valve includes a valve plate, a second elastic element, and two mounting pieces. The two mounting pieces are connected and disposed at the glue outlet end of the glue storage cylinder. The valve plate passes through the glue outlet end of the glue storage cylinder, and one end of the valve plate is connected to one of the mounting pieces through the second elastic element. The other end of the valve plate passes through the other mounting piece and the assembly box in sequence. A valve hole is provided on the valve plate, and the valve hole is offset from the glue outlet end of the glue storage cylinder.

7. The multifunctional metal tube cutting device according to claim 3, characterized in that, The assembly box is provided with support rings at intervals inside, and the glue outlet of the glue storage cylinder is located between two of the support rings.

8. A deep-hole blasting well-forming system, characterized in that, include: Drilling equipment, charging equipment, detonating components, plugging equipment, and the multifunctional metal tube cutting device as described in any one of claims 1-7; The drilling equipment is used to drill blast holes from the ground surface downwards in a preset area. The loading device is used to load explosives into the borehole; The plugging device is used to fill the blast hole with plugging medium; The detonation assembly is used to detonate the loaded explosives; The multifunctional metal tube cutting device according to any one of claims 1-7 is used to cut a metal guide tube, wherein the metal guide tube is used to guide the drill rod of the drilling equipment.

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