Single-rope double-blade adjustable distance rope saw machine

Abstract

The utility model provides a single rope double sword adjustable distance rope sawing machine, include: lift frame, cutting frame, distance adjusting subassembly and cutting line, cutting frame includes main cutting frame and slave cutting frame, main cutting frame and slave cutting frame symmetry are arranged in the both sides of lift frame, and can move up and down along the lift frame, cutting line is annular horizontal and is located in the driving wheel and driven wheel wire groove of main cutting frame and slave cutting frame, and both are located on the same horizontal plane, distance adjusting subassembly symmetry is arranged on main cutting frame and slave cutting frame, and is located between driving wheel and driven wheel, and can adjust the distance between cutting line on both sides of driving wheel and driven wheel through distance adjusting subassembly, the utility model discloses through dynamic distance adjusting and can complete double sword cutting of different thickness work piece one time, avoid the tedious process of " second positioning - second cutting", especially suitable for the work piece of irregular profile or multistage thickness change, improve processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wire saws, and in particular to a single-wire double-blade adjustable-distance wire saw. Background Technology

[0002] Currently, diamond wire saws are mainly used for squaring and cutting brittle and hard materials such as stone and silicon crystal. The diamond wire saw is placed in the guide groove of the cutting wheel system. After the cutting wheel system rotates, it drives the diamond wire to move linearly. The diamond wire saw comes into high-speed back-and-forth frictional contact with the brittle and hard material being cut, generating cutting force to complete the cutting work. In the existing stone processing field, when using a single-wire saw to cut thick slabs, usually only one standard single-wire saw is used. After making the first kerf, the worktable (or the saw itself) is moved a specific distance for a second cut, thus obtaining a thick slab. This method has relatively low equipment cost and a simple principle; however, its biggest drawback is low efficiency. The same slab needs to be cut twice, almost doubling the processing time. At the same time, the movement accuracy and repeatability of the worktable directly affect the parallelism and dimensional accuracy of the two slabs, placing high demands on the equipment and control system, and easily introducing cumulative errors.

[0003] Existing technology CN202110503398.0 discloses a single-wire double-blade wire saw cutting mechanism, including a cutting wire and two sets of guide wheel assemblies. The cutting wire is arranged in a ring within the grooves of the two sets of guide wheel assemblies, and the two sets of guide wheel assemblies are rotated in opposite directions and closer to each other to bend the cutting wire into two rows of two-fold lines. The bends are guided by steering wheel assemblies to tension the portion of the cutting wire located between the two sets of rotated guide wheel assemblies, forming two rows of cutting segments. Although this solution can achieve double-blade cutting with only a single cutting wire, it still has the following problems:

[0004] 1. The spacing between the two rows of cutting sections is fixed by the rotation angle of the guide wheel assembly and the position of the steering wheel. It cannot be dynamically adjusted according to the material thickness (such as the thickness of stone slabs, the diameter of silicon crystal rods, etc.), which means that the equipment can only be adapted to single or limited specifications of cutting tasks.

[0005] 2. If the thickness of the material exceeds the fixed spacing between the two rows of cutting sections (such as ultra-thick stone slabs), the traditional method of "cutting the edge first and then moving the equipment for secondary cutting" still needs to be adopted. This method cannot give full play to the efficiency advantage of single-line double blades, and the fixed structure may even result in lower flexibility in cutting path planning compared to traditional single-wire saws. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a single-rope double-blade adjustable distance wire saw, which can complete the double-blade cutting of workpieces of different thicknesses in one go through dynamic distance adjustment, avoiding the cumbersome process of "secondary positioning-secondary cutting", and is especially suitable for workpieces with irregular contours or multiple thickness variations, thereby improving processing efficiency.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A single-rope double-blade adjustable-pitch wire saw is provided, comprising: a lifting frame, a cutting frame, an adjustable-pitch assembly, and a cutting wire; the cutting frame includes a main cutting frame and a secondary cutting frame, which are symmetrically arranged on both sides of the lifting frame and are capable of moving up and down along the lifting frame;

[0009] The cutting line is arranged in a ring horizontally within the grooves of the driving and driven wheels at the lower ends of the main and driven cutting frames, and both are located on the same horizontal plane; the distance adjustment component is symmetrically arranged on the main and driven cutting frames, located between the driving and driven wheels, and can adjust the distance between the cutting lines on both sides of the driving and driven wheels through the distance adjustment component.

[0010] It should be noted that the lifting frame, as the supporting base, drives the cutting frame to move vertically through a built-in lifting device, thereby adjusting the cutting line height to meet the cutting needs of materials of different heights. The main and slave cutting frames are symmetrically installed on both sides of the lifting frame and can move synchronously in the vertical direction. The lower ends of the main and slave cutting frames are respectively installed with drive wheels and driven wheels, supporting the cutting line to form a horizontal circular loop. The distance adjustment component is set on the main and slave cutting frames, located between the drive wheels and the driven wheels, and synchronously pushes the cutting lines on both sides to change the curvature of the path (the distance adjustment component forcibly changes the bending angle of the cutting line at the limit wheel), thereby adjusting the distance between the cutting lines on both sides to adapt to the cutting of plates of different thicknesses. The maximum adjustment distance of this solution depends on the diameter of the drive wheels and the driven wheels. The larger the diameter of the drive wheels and the driven wheels, the larger the adjustment range.

[0011] Preferably, the distance adjustment assembly includes a sliding device and a limiting wheel set. The sliding device is mounted across the cutting line on the cutting frame and horizontally above the cutting line. The limiting wheel set is symmetrically arranged on the sliding device corresponding to the cutting lines on both sides of the driving wheel and the driven wheel. The wheel surface of the limiting wheel set has a groove adapted to the cutting line. The groove can roll and engage with the cutting line, and can limit the cutting line. The distance between the two limiting wheel sets can be adjusted by the sliding device, thereby adjusting the distance between the cutting lines on both sides of the driving wheel and the driven wheel.

[0012] It should be noted that the sliding device, as a support structure for lateral movement, is arranged across the cutting lines on both sides of the cutting frame. Through mechanical transmission (such as a lead screw, rack and pinion, or manual screw), it drives the two limit wheel sets to move synchronously towards or away from each other, changing the horizontal distance between the two sets of wheel grooves. This adjusts the spacing between the cutting lines on both sides of the driving and driven wheels, forming the required double-blade cutting width, thus achieving adjustment of the cutting line spacing and ensuring the stability and accuracy of the limit wheel sets during movement. The limit wheel sets are symmetrically arranged on both sides of the sliding device, corresponding to the cutting lines on both sides between the driving and driven wheels. The wheel sets embed the cutting lines through the grooves on the wheel surface, using the geometry of the grooves to limit the lateral offset of the cutting lines while allowing the cutting lines to roll within the grooves, reducing the frictional resistance between the limit wheel sets and the cutting lines, and reducing cutting line wear.

[0013] Preferably, the sliding device includes a horizontally arranged slide rail, a bidirectional lead screw parallel to the slide rail, a servo motor driving the bidirectional lead screw to rotate, and two sliders threadedly connected to the bidirectional lead screw; the sliders are symmetrically arranged on the slide rail, and limit wheel sets are correspondingly arranged at their lower ends; the servo motor drives the bidirectional lead screw to rotate forward and backward, thereby driving the two sliders to move synchronously towards or away from each other along the slide rail, so as to adjust the distance between the two limit wheel sets.

[0014] It should be noted that the slide rail, as a horizontal guide component, is fixed above the cutting machine frame and is set parallel to the bidirectional lead screw. The rolling groove or sliding groove at the bottom of the slider cooperates with the slide rail, allowing the slider to move laterally along the slide rail, providing a linear motion track for the limit wheel assembly, limiting the vertical runout and lateral offset of the slider, and ensuring the straightness of the movement trajectory of the limit wheel assembly. The two ends of the bidirectional lead screw are respectively machined with positive and negative threads, which cooperate with the internal threaded holes of the sliders on both sides. When the lead screw rotates, the sliders on both sides move synchronously towards or away from each other along the slide rail due to the opposite direction of the threads, realizing the limit... The symmetrical adjustment of the spacing between the limit wheel sets ensures transmission accuracy. The servo motor is connected to one end of the bidirectional lead screw via a coupling, and drives the lead screw to rotate forward and backward after receiving control signals. By controlling the rotation angle and speed of the motor, the moving distance and speed of the slider are precisely controlled, realizing the automated and precise adjustment of the spacing between the limit wheel sets without manual operation, thus improving the adjustment efficiency. The symmetrical layout of the slider not only ensures that the limit wheel sets on both sides are subjected to balanced force, avoiding the deviation of the cutting line due to excessive pressure on one side, but also allows the limit wheel sets to be disassembled as a whole with the slider, simplifying the maintenance process.

[0015] Preferably, the slider is provided with a coolant outlet pipe, and the outlet of the coolant outlet pipe is vertically downward and aligned with the cutting line.

[0016] It should be noted that the coolant outlet pipe is fixed to the upper end or side of the slider and moves laterally synchronously with the slider. The inside of the coolant outlet pipe is connected to the coolant circulation system (such as a pump or water tank). Pressurized coolant is delivered to the outlet through the pipeline and sprayed vertically onto the surface of the cutting line, ensuring that the coolant is always aligned with the cutting line. This avoids the cooling blind spots caused by the adjustment of the distance in traditional fixed spray positions and ensures that the cooling system operates stably and reliably during dynamic distance adjustment.

[0017] Preferably, the limiting wheel set includes a horizontally arranged transverse wheel and a vertically arranged vertical wheel. The grooves of the transverse wheel and the vertical wheel form an orthogonal limiting structure, and the center lines of the grooves of the transverse wheel and the vertical wheel are on the same straight line as the axis of the cutting line.

[0018] It should be noted that the lateral wheel has a horizontally arranged wheel surface, and its grooves hold the side of the cutting line. Through the constraint of the groove sidewalls, the lateral (left-right) offset of the cutting line is limited, ensuring the stability of the pitch adjustment. The vertical wheel has a vertically arranged wheel surface, and its grooves cut into the cutting line from above, limiting the vertical (up-down) jump of the cutting line. This not only ensures that the cutting line runs in the same horizontal plane, but also provides a downward pressure for the cutting line during cutting. The groove axes of the lateral and vertical wheels are perpendicular to each other (at 90° orthogonal), forming a "cross-shaped" limiting space. The cutting line is simultaneously embedded in the horizontal and vertical grooves and is constrained in both the X and Y axes, forcing the cutting line to run along a preset straight trajectory. This reduces wheel set wear caused by unidirectional limiting and extends the wheel set life.

[0019] Preferably, the lifting frame includes a gantry frame and a lifting device. The lifting devices are symmetrically installed in the receiving slots of the two side columns of the gantry frame. The main cutting frame and the secondary cutting frame are both set on the gantry frame through the lifting devices and are lifted synchronously through the lifting devices.

[0020] It should be noted that the gantry frame consists of a top crossbeam and two side columns, forming a rigid frame structure. The columns have an axially spaced groove in the center for installing lifting devices. The main and slave cutting frames are connected to the columns via the lifting devices and can move vertically along the columns. Identical lifting devices (such as screw and nut mechanisms, gear racks, or hydraulic cylinders) are installed in the two side columns respectively. Through mechanical synchronization mechanisms (such as synchronous belts or couplings) or electrical synchronization control (such as servo motor synchronous drives), the lifting devices on both sides are ensured to move synchronously, driving the main / slave cutting frames to rise and fall synchronously. This avoids the tilt angle of the cutting line caused by the height difference between the two sides and ensures a smooth cutting surface.

[0021] Preferably, the upper end of the gantry frame is provided with a support beam, and multiple coolant outlet pipes are spaced apart along the length of the support beam, with the outlet of the coolant outlet pipes vertically downward and aligned with the cutting line.

[0022] It should be noted that the support beam is fixed to the upper part of the gantry frame and serves as the mounting carrier for the coolant outlet pipe, providing a rigid installation reference to ensure that the coolant outlet pipe is fixed in position and to prevent the coolant spray position from shifting due to frame vibration. Multiple coolant outlet pipes are evenly distributed below the support beam and are spaced apart along the cutting line running direction (beam length direction). Each coolant outlet pipe is independently or in parallel connected to the coolant source, and the flow rate is controlled by valves or pumps to achieve full coverage spraying of the entire working section of the cutting line.

[0023] Preferably, the lifting device includes a stepper motor, a synchronous transmission mechanism, a lifting nut seat, and a lifting screw; the lifting screw is vertically arranged in the receiving groove, its upper end is fixed to the top of the column by a bearing seat, and its lower end is supported at the bottom of the column by a deep groove ball bearing; the stepper motor is installed on the top crossbeam of the portal frame, and its output shaft drives the lifting screws on both sides to rotate synchronously through the synchronous transmission mechanism; the lifting nut seat is threadedly connected to the lifting screw and is arranged in the receiving groove, the main cutting frame and the slave cutting frame are fixed on the corresponding lifting nut seat, and the main cutting frame and the slave cutting frame are driven to move synchronously up and down along the axial direction of the lifting screw by the up and down movement of the lifting nut seat.

[0024] It should be noted that the stepper motor is fixed to the top crossbeam of the gantry frame, and its output shaft is connected to the synchronous transmission mechanism, transmitting power to the lifting screws on both sides to achieve precise control of the lifting movement of the cutting frame. The synchronous transmission mechanism (such as synchronous pulleys + synchronous belts) connects the output shaft of the stepper motor to the lifting screws on both sides, transmitting power through tooth meshing, forcing the screws on both sides to rotate at the same speed and in the same direction, ensuring synchronous lifting of the master / slave cutting frame. The lifting screws are vertically installed in the receiving slots of the gantry frame columns, and their outer surfaces are machined with precision threads, fitting into the lifting nut seats. The threaded engagement converts rotary motion into linear motion, and the screw drive has a self-locking characteristic, which can prevent the cutting frame from sliding down due to gravity and improve equipment safety. The lifting nut seat is embedded in the column receiving groove, and its internal thread engages with the lifting screw. The outside of the lifting nut seat is fixedly connected to the main cutting frame / slave cutting frame by bolts. When the screw rotates, the lifting nut seat moves up and down along the screw axis, driving the cutting frame to rise and fall synchronously. The receiving groove inside the gantry column provides installation space for the lifting screw and is fixed with bearings to form a stable two-end support structure.

[0025] Preferably, a guide rail is provided at the bottom of the receiving groove along the axial direction of the column, the guide rail is symmetrically arranged on both sides of the lifting screw, and a guide block is correspondingly provided on the lifting nut seat.

[0026] It should be noted that the guide rail is fixed to the bottom of the receiving groove of the portal frame column, extends along the column axis (vertical direction), and is symmetrically distributed on both sides of the lifting screw. The cross-section of the guide rail is usually rectangular, T-shaped, or dovetail-shaped, forming a sliding pair with the guide block on the lifting nut seat. This guides the lifting nut seat to move smoothly along the column axis, restricts its lateral offset and rotation, ensures the straightness of the moving trajectory of the lifting nut seat, reduces the bending moment borne by the lifting screw, and extends the service life of the screw.

[0027] Preferably, the maximum distance between the cutting lines on both sides of the driving wheel and the driven wheel is not greater than the diameter of the driving wheel.

[0028] It should be noted that the diameters of the driving and driven wheels should be selected reasonably according to the target cutting thickness range to ensure that the maximum spacing meets the requirements of typical workpieces (such as thick plate cutting) and to avoid the equipment's applicability being limited due to excessively small diameters. If ultra-thick materials need to be processed, large-diameter driving wheels (such as diameter ≥ target maximum cutting thickness) should be selected first.

[0029] The beneficial effects of this utility model are:

[0030] This utility model provides a single-rope double-blade adjustable-pitch wire saw. By dynamically adjusting the distance between the cutting lines on both sides of the drive and driven wheels using an adjustable-pitch component, it can complete double-blade cutting of workpieces of different thicknesses in a single operation. This avoids the low efficiency and positioning errors of traditional secondary cutting. The adjustable-pitch component uses a sliding device (such as a bidirectional lead screw or servo motor-driven slider) for precise control, and the orthogonal limiting structure of the limit wheel group ensures stable operation of the cutting line. The lifting frame adapts to cutting materials of different heights through a synchronous lifting device. The cooling system (coolant outlet pipes on the slider and support beam) dynamically aligns with the cutting line as the distance is adjusted, improving cooling efficiency. Simultaneously, the maximum distance is limited by the diameter of the drive wheel to prevent the cutting line from slipping out of the groove or exceeding tension limits, ensuring equipment stability and safety. It boasts advantages such as high efficiency, precision, strong adaptability, and convenient maintenance. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of a single-rope double-blade adjustable-distance wire saw according to Embodiment 1 of this utility model.

[0032] Figure 2 This is a three-dimensional structural diagram of a lifting frame according to Embodiment 1 of this utility model.

[0033] Figure 3 for Figure 2 Enlarged diagram of point A.

[0034] Figure 4 This is a three-dimensional structural diagram of the main cutting frame in Embodiment 1 of this utility model.

[0035] Figure 5This is a three-dimensional structural diagram of the cutting frame according to Embodiment 1 of this utility model.

[0036] Figure 6 This is a three-dimensional structural diagram of the distance adjustment component of Embodiment 1 of this utility model.

[0037] In the diagram: 1. Lifting frame; 11. Gantry frame; 111. Receiving slot; 112. Support beam; 12. Lifting device; 121. Stepper motor; 122. Synchronous transmission mechanism; 123. Lifting nut seat; 124. Lifting screw; 13. Guide rail; 14. Guide block; 2. Cutting frame; 21. Main cutting frame; 211. Drive wheel; 22. Slave cutting frame; 221. Driven wheel; 3. Adjustment assembly; 31. Sliding device; 311. Slide rail; 312. Bidirectional screw; 313. Servo motor; 314. Slider; 32. Limit wheel group; 321. Horizontal wheel; 322. Vertical wheel; 4. Cutting line; 5. Coolant outlet pipe.

[0038] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Example 1

[0041] like Figures 1-6 As shown, a single-rope double-blade adjustable-pitch wire saw includes: a lifting frame 1, a cutting frame 2, an adjustable-pitch assembly 3, and a cutting wire 4; the cutting frame 2 includes a main cutting frame 21 and a secondary cutting frame 22, which are symmetrically arranged on both sides of the lifting frame 1 and can move up and down along the lifting frame 1.

[0042] The cutting line 4 is arranged in a ring horizontally within the grooves of the driving wheel 211 and driven wheel 221 at the lower ends of the main cutting frame 21 and the driven cutting frame 22, and the driving wheel 211 and driven wheel 221 are located on the same horizontal plane; the distance adjustment component 3 is symmetrically arranged on the main cutting frame 21 and the driven cutting frame 22, and is located between the driving wheel 211 and the driven wheel 221, and can adjust the distance between the cutting lines 4 on both sides of the driving wheel 211 and the driven wheel 221 through the distance adjustment component 3.

[0043] The distance adjustment assembly 3 includes a sliding device 31 and a limiting wheel set 32. The sliding device 31 is mounted across the cutting line 4 on the cutting frame 2 and is positioned horizontally above the cutting line 4. The limiting wheel set 32 ​​is symmetrically arranged on the sliding device 31 corresponding to the cutting lines 4 on both sides of the driving wheel 211 and the driven wheel 221. The wheel surface of the limiting wheel set 32 ​​has a groove adapted to the cutting line 4. The groove can roll and contact the cutting line 4, and can limit the cutting line 4. The distance between the two limiting wheel sets 32 can be adjusted by the sliding device 31, thereby adjusting the distance between the cutting lines 4 on both sides of the driving wheel 211 and the driven wheel 221.

[0044] The sliding device 31 includes a horizontally arranged slide rail 311, a bidirectional lead screw 312 parallel to the slide rail 311, a servo motor 313 driving the bidirectional lead screw 312 to rotate, and two sliders 314 threadedly connected to the bidirectional lead screw 312. The sliders 314 are symmetrically arranged on the slide rail 311, and their lower ends are correspondingly provided with limit wheel sets 32. The servo motor 313 drives the bidirectional lead screw 312 to rotate forward and backward, thereby driving the two sliders 314 to move synchronously towards or away from each other along the slide rail 311, thereby adjusting the distance between the two limit wheel sets 32.

[0045] The slider 314 is provided with a coolant outlet pipe 5, and the outlet of the coolant outlet pipe 5 is vertically downward and aligned with the cutting line 4.

[0046] The limiting wheel assembly 32 includes a horizontally arranged transverse wheel 321 and a vertically arranged vertical wheel 322. The grooves of the transverse wheel 321 and the vertical wheel 322 form an orthogonal limiting structure, and the center lines of the grooves of the transverse wheel 321 and the vertical wheel 322 are on the same straight line as the axis of the cutting line 4.

[0047] The lifting frame 1 includes a gantry frame 11 and a lifting device 12. The lifting device 12 is symmetrically installed in the receiving slots 111 of the two side columns of the gantry frame 11. The main cutting frame 21 and the secondary cutting frame 22 are both set on the gantry frame 11 through the lifting device 12 and are lifted and lowered synchronously through the lifting device 12.

[0048] The upper end of the portal frame 11 is provided with a support beam 112. Multiple coolant outlet pipes 5 are arranged at intervals along the length direction on the support beam 112, and the outlet of the coolant outlet pipe 5 is vertically downward aligned with the cutting line 4.

[0049] The lifting device 12 includes a stepper motor 121, a synchronous transmission mechanism 122, a lifting nut seat 123, and a lifting screw 124. The lifting screw 124 is vertically arranged in the receiving groove 111, with its upper end fixed to the top of the column by a bearing seat and its lower end supported at the bottom of the column by a deep groove ball bearing. The stepper motor 121 is mounted on the top crossbeam of the portal frame 11, and its output shaft drives the lifting screws 124 on both sides to rotate synchronously through the synchronous transmission mechanism 122. The lifting nut seat 123 is threadedly connected to the lifting screw 124 and is arranged in the receiving groove 111. The main cutting frame 21 and the secondary cutting frame 22 are fixed on the corresponding lifting nut seats 123, and the main cutting frame 21 and the secondary cutting frame 22 are driven to move synchronously up and down along the axial direction of the lifting screw 124 by the up and down movement of the lifting nut seat 123.

[0050] The bottom of the receiving groove is provided with a guide rail 13 along the axial direction of the column. The guide rail 13 is symmetrically arranged on both sides of the lifting screw 124, and the lifting nut seat 123 is provided with a corresponding guide block 14.

[0051] The maximum distance between the cutting lines 4 on both sides of the driving wheel 211 and the driven wheel 221 is not greater than the diameter of the driving wheel 211.

[0052] The working principle and usage method of a single-rope double-blade adjustable-pitch wire saw in this embodiment are as follows:

[0053] This embodiment provides a single-rope, double-blade, adjustable-pitch wire saw. The lifting frame 1 is driven by a stepper motor 121 via a synchronous transmission mechanism 122 to rotate the lifting screw 124, causing the main cutting frame 21 and the driven cutting frame 22 to move synchronously up and down along the guide rail 13. This allows for rapid adaptation to the cutting needs of workpieces of different heights, preventing the cutting line 4 from tilting due to height differences on both sides and ensuring the flatness of the cut surface. The cutting line 4 is horizontally wound in a ring within the grooves of the driving wheel 211 and driven wheel 221 at the same horizontal level at the lower ends of the main cutting frame 21 and the driven cutting frame 22. The rotation of the driving wheel 211 drives the cutting line 4 to form a horizontal ring cutting loop. The symmetrical structure ensures uniform tension of the cutting line 4 and guarantees smooth transmission. The servo motor 313 of the adjustable-pitch assembly 3 drives the bidirectional screw 312 to move the symmetrical slider 314 along the slide rail 311, thus limiting the movement of the lower end. The horizontal wheel 321 (horizontal limit) and vertical wheel 322 (vertical limit) of the positioning wheel group 32 synchronously adjust the distance between the cutting lines 4 on both sides (maximum distance ≤ diameter of the driving wheel 211). The orthogonal limiting structure forces the cutting line 4 to run along a preset straight trajectory, realizing the dynamic adjustment of the double blade distance. It is suitable for one-time double blade cutting of workpieces of different thicknesses, avoiding the inefficiency and positioning error of traditional secondary cutting. Moreover, the diameter limit of the driving wheel 211 prevents the cutting line 4 from excessively bending and degrooving, improving the safety of equipment operation. The coolant outlet pipe 5 on the slider 314 dynamically aligns with the cutting line 4 according to the distance adjustment. The fixed coolant outlet pipe 5 on the support beam 112 sprays at intervals along the entire stroke of the cutting line 4, forming a "dynamic following + full coverage" cooling effect, avoiding cooling blind spots, reducing the temperature of the cutting line 4, and extending its service life.

[0054] In use, based on the thickness of the workpiece to be cut, the target spacing parameter is input through the control system. The servo motor 313 drives the bidirectional lead screw 312 to rotate in both directions, causing the sliders 314 on both sides to move synchronously along the slide rail 311. The spacing of the limit wheel set 32 ​​is adjusted to the required value. Then, the vertical height of the workpiece is observed, and the stepper motor 121 is started. Through the synchronous transmission mechanism 122 (such as a synchronous belt), the lifting lead screws 124 on both sides are driven to rotate synchronously. The lifting nut seat 123 moves along the lead screw axis, causing the main cutting frame 21 and the slave cutting frame 22 to rise and fall synchronously, so that the cutting line 4 is aligned with the position to be cut on the workpiece, and the slider is confirmed. The dynamic coolant outlet pipe 5 on 314 is connected to the coolant outlet pipe 5 fixed on the support beam 112. The coolant circulation system is turned on, and the spray position is tested to see if it is aligned with the cutting line 4. Then, the drive device (such as a motor) of the drive wheel 211 is started to make the cutting line 4 rotate at high speed to form a horizontal ring cutting circuit. Cutting is achieved through the frictional contact between the cutting line 4 and the workpiece. If it is necessary to continue processing workpieces of different thicknesses, repeat the above steps to readjust the distance and raise and lower. If it is not necessary to continue using it, adjust the distance of the limit wheel group 32 to the initial position of the equipment, and lower the cutting frame 2 to the lowest position to reduce the standby power consumption of the equipment.

[0055] Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is used only to illustrate the technical solution of this utility model, and is not intended to limit the protection scope of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the protection scope of this utility model.

[0056] In the description of this utility model, it should be understood that the terms "upper", "lower", "upper end", "lower end", "upper surface", "lower surface", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and 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 this utility model.

[0057] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" 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 connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A single-rope double-blade adjustable-pitch wire saw, comprising: The lifting frame (1), the cutting frame (2), the spacing adjustment assembly (3), and the cutting line (4) are provided. The cutting frame (2) includes a main cutting frame (21) and a secondary cutting frame (22), which are symmetrically arranged on both sides of the lifting frame (1) and can move up and down along the lifting frame (1). The characteristic feature is that: The cutting line (4) is arranged in a ring horizontally within the grooves of the drive wheel (211) and driven wheel (221) of the main cutting frame (21) and the driven cutting frame (22), and both are located on the same horizontal plane; the distance adjustment component (3) is symmetrically arranged on the main cutting frame (21) and the driven cutting frame (22), and is located between the drive wheel (211) and the driven wheel (221), and can adjust the distance between the cutting lines (4) on both sides of the drive wheel (211) and the driven wheel (221) through the distance adjustment component (3).

2. A single-rope double-blade adjustable-distance rope saw machine according to claim 1, characterized in that: The distance adjustment component (3) includes a sliding device (31) and a limiting wheel group (32). The sliding device (31) is mounted across the cutting line (4) on the cutting frame (2) and is horizontally positioned above the cutting line (4). The limiting wheel group (32) is symmetrically positioned on the sliding device (31) corresponding to the cutting lines (4) on both sides of the driving wheel (211) and the driven wheel (221). The wheel surface of the limiting wheel group (32) is provided with a wheel groove that is adapted to the cutting line (4). The wheel groove can roll and contact the cutting line (4) and limit the cutting line (4). The distance between the two limiting wheel groups (32) can be adjusted by the sliding device (31), thereby adjusting the distance between the cutting lines (4) on both sides of the driving wheel (211) and the driven wheel (221).

3. A single-rope double-blade adjustable-distance rope saw machine according to claim 2, characterized in that: The sliding device (31) includes a horizontally arranged slide rail (311), a bidirectional lead screw (312) parallel to the slide rail (311), a servo motor (313) driving the bidirectional lead screw (312) to rotate, and two sliders (314) threadedly connected to the bidirectional lead screw (312). The sliders (314) are symmetrically arranged on the slide rail (311), and their lower ends are correspondingly provided with limit wheel sets (32). The servo motor (313) drives the bidirectional lead screw (312) to rotate forward and backward, thereby driving the two sliders (314) to move synchronously towards or away from each other along the slide rail (311) to adjust the distance between the two limit wheel sets (32).

4. A single-rope double-blade adjustable-distance rope saw machine according to claim 3, characterized in that: The slider (314) is provided with a coolant outlet pipe (5), and the outlet of the coolant outlet pipe (5) is vertically downward aligned with the cutting line (4).

5. A single-rope double-blade adjustable-distance rope saw machine according to claim 2, characterized in that: The limiting wheel set (32) includes a horizontally arranged transverse wheel (321) and a vertically arranged vertical wheel (322). The grooves of the transverse wheel (321) and the vertical wheel (322) form an orthogonal limiting structure, and the center lines of the grooves of the transverse wheel (321) and the vertical wheel (322) are on the same straight line as the axis of the cutting line (4).

6. A single-rope double-blade adjustable-distance rope saw machine according to claim 1, characterized in that: The lifting frame (1) includes a portal frame (11) and a lifting device (12). The lifting device (12) is symmetrically installed in the receiving slots (111) of the two side columns of the portal frame (11). The main cutting frame (21) and the secondary cutting frame (22) are both set on the portal frame (11) through the lifting device (12) and are lifted synchronously through the lifting device (12).

7. A single-rope double-blade adjustable-pitch wire saw as described in claim 6, characterized in that: The upper end of the gantry frame (11) is provided with a support beam (112), and multiple coolant outlet pipes (5) are provided at intervals along the length direction on the support beam (112), and the outlet of the coolant outlet pipe (5) is vertically downward aligned with the cutting line (4).

8. A single-rope double-blade adjustable-distance rope saw machine according to claim 6, characterized in that: The lifting device (12) includes a stepper motor (121), a synchronous transmission mechanism (122), a lifting nut seat (123), and a lifting screw (124). The lifting screw (124) is vertically arranged in the receiving groove (111), with its upper end fixed to the top of the column by a bearing seat and its lower end supported at the bottom of the column by a deep groove ball bearing. The stepper motor (121) is installed on the top crossbeam of the portal frame (11), and its output shaft drives the lifting screws (124) on both sides to rotate synchronously through the synchronous transmission mechanism (122). The lifting nut seat (123) is threadedly connected to the lifting screw (124) and is arranged in the receiving groove (111). The main cutting frame (21) and the secondary cutting frame (22) are fixed on the corresponding lifting nut seat (123), and the main cutting frame (21) and the secondary cutting frame (22) are driven to move synchronously along the axial direction of the lifting screw (124) by the up and down movement of the lifting nut seat (123).

9. A single-rope double-blade adjustable-distance rope saw machine according to claim 8, characterized in that: The bottom of the receiving groove (111) is provided with a guide rail (13) along the axial direction of the column. The guide rail (13) is symmetrically arranged on both sides of the lifting screw (124). The lifting nut seat (123) is provided with a corresponding guide block (14).

10. A single-rope double-blade adjustable-distance rope saw machine according to claim 1, characterized in that: The maximum distance between the cutting lines (4) on both sides of the driving wheel (211) and the driven wheel (221) is not greater than the diameter of the driving wheel (211) and the driven wheel (221).

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