Diamond fretsaw cutting machine

Abstract

The utility model discloses a diamond fretsaw cutting machine, which can drive two groups of movable frames to slide on a guide rail by an adjusting device to adjust the horizontal length of a cutting wire net finally formed after a diamond wire is wound on a roller, so that the diamond fretsaw cutting machine can perfectly meet the cutting requirements of stones with different widths and thicknesses. A cutting section is kept at a reasonable bending angle, the stone cutting effect is improved, and the quality of cut finished products and the universality and flexibility of equipment are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to stone cutting technical field especially, relate to a kind of diamond wire saw cutting machine. BACKGROUND

[0002] In recent years, diamond wire saw processing technology is increasingly widely used in the field of stone slab cutting, with a material yield of more than 90%, which not only poses a significant challenge to traditional marble industry gang saw processing technology, but also brings a significant impact on the widely used combined rope saw processing technology in the granite and high-end luxury stone industry. In terms of technical implementation, diamond wire saw processing technology has developed to the diamond wire saw cutting machine (referred to as wire cutting machine) stage in the field of stone slab cutting. This type of equipment can form dozens of cutting line networks composed of diamond wire saws by winding a single 20000m~30000m diamond wire saw on four main rollers, and then controlling the one-way or reciprocating motion of the diamond wire saw through the cooperation of the take-up and pay-off wheel assemblies on both sides of the equipment and the rotation of the four main rollers, thereby realizing precise cutting of stone. The current wire cutting machine has the following technical problems in the application process: under normal circumstances, the distance between the rollers on the roller frame of the diamond wire saw gang saw cannot be adjusted. When cutting stone with a relatively short length, the cutting section of the diamond wire will form a large bending angle, affecting the stone cutting effect, and in severe cases, affecting the quality of the cutting product. SUMMARY

[0003] In view of the above technical problems, the utility model aims to provide a diamond wire saw cutting machine with better cutting effect.

[0004] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0005] A diamond wire saw cutting machine, comprising: a wire cutting frame provided with two groups of roller devices and two groups of take-up and pay-off devices for taking up and paying off gold wire; the two groups of roller devices are arranged horizontally and spaced apart to form a cutting channel for the passage of stone; each group of roller devices includes at least two groups of roller rollers arranged longitudinally; the wire cutting frame is provided with a guide rail, two groups of movable frames slidably positioned on the guide rail, and at least one adjusting device; the two groups of movable frames are symmetrically arranged horizontally on the wire cutting frame, and the two groups of roller devices are respectively mounted on the two groups of movable frames; the two groups of movable frames are driven by the adjusting device to slide synchronously towards each other or away from each other to adjust the horizontal distance between the two groups of roller devices.

[0006] Furthermore, the adjustment device includes an adjustment screw rotatably connected to the wire cutting frame and an adjustment motor mounted on the wire cutting frame for driving the adjustment screw to rotate; the two ends of the adjustment screw are respectively provided with threaded sections in opposite directions, one end of the threaded section of the adjustment screw is provided with a first threaded sleeve connected to a set of movable frames, and the other end of the threaded section of the adjustment screw is provided with a second threaded sleeve connected to another set of movable frames.

[0007] Furthermore, it also includes a worktable arranged at a lower position relative to the cutting channel, the worktable being connected to a lifting device, the lifting device being used to drive the worktable to move vertically up and down relative to the cutting channel.

[0008] Furthermore, the lifting device includes several sets of support frames, which are connected to the bottom of the wire cutting frame and arranged in a ring around the worktable. Each set of support frames is equipped with a lifting component connected to the worktable, and the lifting components synchronously drive the worktable to move vertically.

[0009] Furthermore, each of the lifting components includes a slide rail, a slider, and a lifting screw. The slide rail extends longitudinally on the support frame. The slider is slidably positioned on the slide rail and connected to the worktable. The lifting screw is rotatably positioned on the support frame, with one end connected to the slider and the other end provided with a lifting motor for driving the lifting screw to rotate.

[0010] Furthermore, the lifting motor is a servo brake motor.

[0011] Furthermore, each set of support frames forms a sealed mounting surface, and each end of the slide rail is provided with a longitudinally foldable sealing cover. The end of the sealing cover away from the slide rail extends longitudinally and is connected to the slider. The sealed mounting surface and the sealing cover enclose a sealed space with a variable volume. The lifting screw and the slide rail are disposed on the sealed mounting surface and are at least partially located within the sealed space.

[0012] Furthermore, the roller includes a pressure roller rotatably connected to the wire cutting frame and a winding roller detachably connected to the pressure roller; both ends of the winding roller are provided with slots for the ends of the pressure roller to be inserted into, the bottom of the slots is provided with connecting holes, the pressure roller has an installation channel that connects to the slots, a connecting rod is provided in the installation channel, one end of the connecting rod extends out of the installation channel and is provided with a nut head that axially abuts against the end of the pressure roller, and the other end extends into the slot and is threaded to the connecting hole.

[0013] Furthermore, the connecting rod is threadedly connected to the inner wall of the mounting channel.

[0014] Furthermore, the inner wall of the slot is configured as an inner conical surface, the width of which gradually increases from the inside to the outside, and the outer wall of the end of the clamping roller connected to the slot is configured as an outer conical surface that matches the shape of the inner conical surface.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: 1. The two sets of movable frames are driven by the adjustment device to slide on the guide rail, and the horizontal length of the cutting wire mesh finally formed after the diamond wire is wound around the roller is adjusted, so that the diamond wire saw cutting machine can perfectly adapt to the cutting needs of stone with different widths and thicknesses, keep the cutting section at a more reasonable bending angle, improve the stone cutting effect, improve the quality of the cut product and the versatility and flexibility of the equipment.

[0016] 2. Two sets of movable frames are horizontally symmetrically arranged on the wire cutting frame. Driven by the adjustment device, the two sets of movable frames slide synchronously towards each other or synchronously away from each other, which can ensure that the two sets of roller devices remain balanced in the horizontal direction and avoid equipment instability caused by the shift of the center of gravity. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the diamond wire saw cutting machine provided in this embodiment. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the roller structure of the diamond wire saw cutting machine provided in this embodiment. Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the diamond wire wiring arrangement of the diamond wire saw cutting machine provided in this embodiment.

[0020] Figure 4 This is a partial structural diagram of the diamond wire saw cutting machine provided in this embodiment. Figure 1 ;

[0021] Figure 5 This is a partial structural diagram of the diamond wire saw cutting machine provided in this embodiment. Figure 2 ;

[0022] Figure 6 This is a schematic diagram of the roller structure of the diamond wire saw cutting machine provided in this embodiment. Figure 2 ;

[0023] Figure 7 This is a partial cross-sectional view of the roller of the diamond wire saw cutting machine provided in this embodiment;

[0024] In the picture:

[0025] Reference numerals: 1. Diamond wire; 2. Wire cutting frame; 21. Guide rail; 22. Movable frame; 23. Adjustment device; 231. Adjusting screw; 232. Adjusting motor; 233. First threaded sleeve; 234. Second threaded sleeve; 3. Roller roller; 31. Wire groove; 33. Winding roller; 331. Slot; 332. Connecting hole; 34. Pressure roller; 341. Mounting channel; 342. Connecting rod; 343. Nut head; 4. Wire take-up and unwinding device; 5. Cutting channel; 7. Wire feeding motor; 8. Workbench; 9. Lifting device; 91. Support frame; 92. Lifting assembly; 921. Slide rail; 922. Slider; 923. Lifting screw; 924. Lifting motor; 93. Sealing mounting surface; 94. Sealing cover. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below, with examples of the embodiments shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The present invention will be further described in detail below with reference to the accompanying drawings:

[0031] Example 1

[0032] refer to Figures 1-7 A diamond wire saw cutting machine, similar to existing diamond wire saw cutting machines that use diamond wire saws (hereinafter referred to as diamond wire 1) to cut stone, includes a wire cutting frame 2. The wire cutting frame 2 is equipped with two sets of roller devices and two sets of wire winding and unwinding devices 4 for winding and unwinding diamond wire 1. The two sets of roller devices are arranged horizontally at intervals to form a cutting channel 5 for the stone to pass through. Each set of roller devices includes at least two sets of roller rollers 3 arranged longitudinally at intervals (in this embodiment and the accompanying drawings, the number of roller rollers 3 in each set of roller devices is two sets). The roller rollers 3 are rotatably connected to the frame. The roller surface of the roller roller 3 has a plurality of grooves 31 formed at intervals along the length direction of the roller roller 3 for the diamond wire 1 to be circulated around (the grooves 31 are omitted in some of the accompanying drawings).

[0033] This embodiment, like existing commercially available diamond wire saw cutting machines, employs a single-wire cutting design. One set of take-up and release devices 4 pulls out a single diamond wire 1. This single diamond wire 1 circulates along a preset direction, winding through the grooves 31 of the rollers 3 of two sets of roller devices. At the bottom of each roller device—specifically, at the bottom of the lowest roller 3 of each roller device—a cutting wire mesh is formed for cutting the stone. Finally, it is pulled to another set of take-up and release devices 4. The density of the cutting wire mesh depends on the rated number of cutting discs per cut. A higher rated number of cutting discs requires more loops of the diamond wire 1 around the roller devices, resulting in more grooves 31 on each roller 3 and a denser cutting wire mesh. During operation, the two sets of take-up and release devices 4 can work together to unidirectionally take in and release the diamond wire 1, or bidirectionally reciprocate, thereby driving the cutting wire mesh to dynamically cut the stone passing through the cutting channel 5.

[0034] Compared with the prior art, the improvement of this application is as follows: The wire cutting frame 2 is provided with a guide rail 21, and two sets of movable frames 22 are slidably positioned on the guide rail 21. The two sets of movable frames 22 are arranged at intervals from each other. Two sets of roller devices are selectively set on the two sets of movable frames 22. The wire cutting frame 2 is also provided with at least one set of adjustment device 23. The adjustment device 23 is connected to the two sets of movable frames 22 and is used to drive the two sets of movable frames 22 to slide relative to each other, thereby adjusting the horizontal distance between the two sets of roller devices.

[0035] Through the above technical solution, the two sets of movable frames 22 are driven by the adjustment device 23 to slide on the guide rail 21, which can conveniently adjust the horizontal distance between the two sets of roller devices, thereby adjusting the horizontal length of the cutting wire mesh finally formed after the diamond wire 1 is wound around the roller roller 3. This allows the diamond wire saw cutting machine to perfectly adapt to the cutting needs of stones of different widths and thicknesses, keeping the cutting section at a more reasonable bending angle, thereby improving the stone cutting effect, improving the quality of the cut product, and enhancing the versatility and flexibility of the equipment.

[0036] Specifically, two sets of movable frames 22 are horizontally symmetrically arranged on the wire cutting frame 2. Driven by the adjusting device 23, the two sets of movable frames 22 slide synchronously towards each other or backwards. This horizontally symmetrical arrangement of the two sets of movable frames 22, and their synchronous sliding towards or backwards via the adjusting device 23, ensures that the two roller devices remain balanced in the horizontal direction, avoiding equipment instability caused by a shift in the center of gravity. Furthermore, the increased equipment stability, in turn, improves the accuracy and stability of the spacing adjustment.

[0037] The structure and connection method of the adjusting device 23 are described in detail below: The adjusting device 23 includes an adjusting screw 231 and an adjusting motor 232. The adjusting screw 231 is rotatably connected to the wire cutting frame 2. The adjusting motor 232 is installed on the wire cutting frame 2 and connected to one end of the adjusting screw 231 to drive the adjusting screw 231 to rotate. The two ends of the adjusting screw 231 form threaded sections with opposite directions. One end of the threaded section of the adjusting screw 231 is provided with a first threaded sleeve 233 connected to a set of movable frames 22. The adjusting screw 231 is connected to a second threaded sleeve 234 of another set of movable frames 22.

[0038] During operation, the adjusting motor 232 drives the adjusting screw 231 to rotate. Since the two ends of the adjusting screw 231 have threaded sections in opposite directions, when the screw rotates, the first threaded sleeve 233 and the second threaded sleeve 234 move in opposite directions along the screw's thread direction, causing the two sets of movable frames 22 to slide synchronously towards or away from each other under the drive of the adjusting device 23, thus achieving precise adjustment of the roller device spacing. In this embodiment, the adjusting device 23 uses a single drive source to synchronously drive the two sets of movable frames 22 to slide synchronously. While having a simple structure, it also offers high motion synchronization and precision, further preventing equipment instability caused by the shift of the equipment's center of gravity during the spacing process.

[0039] In this embodiment, each set of rollers 3 is connected to a wire-feeding motor 7. The wire-feeding motor 7 can adapt to the wire-feeding and take-up speed of the wire-receiving device 4, synchronously driving the rollers 3 to rotate and pull the diamond wire 1, reducing the traction pressure on the wire-receiving and take-up device 4, reducing its wear and failure rate, while ensuring the smooth movement of the diamond wire 1, more precisely controlling the speed and tension of the diamond wire 1, and improving cutting efficiency. The selection of the wire-feeding motor 7 is diverse; a suitable motor type and speed regulation method can be selected according to the hardness of the stone and the cutting requirements. Preferably, the wire-feeding motor 7 can be a variable frequency speed control motor, which can more flexibly adjust the rotation speed of the rollers 3 to adapt to different cutting needs.

[0040] In addition to the above structure, this embodiment preferably uses a lifting cutting design. That is, the stone wire saw also includes a worktable 8, which is positioned lower than the cutting channel 5. The worktable 8 is connected to a lifting device 9, which drives the worktable 8 to move longitudinally relative to the cutting channel 5. On one hand, the wire saw frame 2 remains relatively stationary. The lifting device 9 drives the worktable 8 to move longitudinally, causing the stone to actively contact the diamond wire 1 during the cutting process. The lifting device 9 and the diamond wire 1 form a combined force to clamp, position, and cut the stone, reducing cutting errors caused by stone movement or tilting and improving cutting accuracy. On the other hand, as the size of the stone cut by existing diamond wire saws becomes increasingly larger, the power and weight of the equipment also increase, making the equipment structure more complex. The above-mentioned lifting cutting design helps to distribute the weight of the equipment, making the weight distribution more reasonable and improving the stability of the equipment operation.

[0041] The lifting device 9 includes several sets of support frames 91 (in this embodiment, there are four sets of support frames 91). These sets of support frames 91 are connected to the bottom of the wire cutting frame 2 and are arranged around the worktable 8. Each set of support frames 91 is equipped with a lifting component 92 connected to the worktable 8. The lifting components 92 synchronously drive the worktable 8 to move vertically. The arrangement of the support frames 91 around the center of the worktable 8 forms a stable support structure, ensuring the worktable 8 remains stable during lifting and avoiding cutting errors caused by swaying or tilting. Furthermore, the synchronous driving of the lifting components 92 to move the worktable 8 vertically improves its load-bearing capacity and lifting speed while ensuring its stability and consistency during lifting and lowering, preventing localized swaying of the stone during cutting, and thus improving cutting accuracy.

[0042] The implementation structure of the lifting assembly 92 is diverse. For example, it can adopt a hydraulic cylinder lifting mechanism or a worm gear lifting mechanism with a self-locking function. In this embodiment, a preferred implementation structure of the lifting assembly 92 is provided: each lifting assembly 92 includes a slide rail 921, a slider 922 and a lifting screw 923. The slide rail 921 extends longitudinally and is arranged on the support frame 91. The slider 922 is slidably positioned on the slide rail 921 and connected to the worktable 8. The lifting screw 923 is rotatably positioned on the support frame 91. One end of the screw is connected to the slider 922, and the other end is provided with a lifting motor 924 for driving the lifting screw 923 to rotate.

[0043] Through the above technical solution, during operation, the combination of slide rail 921 and slider 922 provides stable guidance for the lifting of the worktable 8 and the stone, ensuring the stability and accuracy of the worktable 8 during the lifting process. Furthermore, the lifting motor 924 drives the lifting screw 923 to rotate, and the screw 923, through its threaded transmission, drives the slider 922 to lift, ensuring the positional accuracy of the worktable 8 during lifting. In this embodiment, the lifting motor 924 is a servo brake motor. Servo brake motors have high-precision control characteristics, enabling precise control of the lifting speed and position of the worktable 8. Through feedback devices such as encoders or analyzers, the motor's position and speed can be monitored in real time, thus achieving closed-loop control. In addition, the servo brake motor can automatically lock its position when power is off, preventing the worktable 8 from moving or falling due to external forces, improving equipment safety.

[0044] In addition, each set of support frames 91 has a sealing mounting surface 93, and each end of the slide rail 921 is provided with a longitudinally foldable sealing cover 94 (the sealing cover 94 is made of rubber, silicone or other flexible metal materials; in this embodiment, the sealing cover 94 is shaped like the bellows of an accordion). The end of the sealing cover 94 away from the slide rail 921 extends longitudinally and is connected to the slider 922. The sealing mounting surface 93 and the sealing cover 94 enclose a sealing space with a variable volume. The lifting screw 923 and the slide rail 921 are set on the sealing mounting surface 93 and are at least partially located in the sealing space. Through the above scheme, the longitudinally foldable design of the sealing cover 94 allows the sealing space to freely change its volume as the slider 922 rises and falls, thereby ensuring the sealing effect of the lifting device 9 at different heights. During the process of the lifting device 9 driving the worktable 8 to rise and fall, external dust, oil stains, powder generated from cutting stone and water vapor can be prevented from entering the lifting component 92, thereby keeping the lifting screw 923 and slide rail 921 clean and lubricated. This not only extends the service life of the components, but also improves the stability and accuracy of the lifting device 9.

[0045] In addition to the above, this application also solves the problem of installation and connection of the roller roller 3: For ease of installation, the roller roller 3 of existing diamond wire saw cutting machines usually adopts a segmented design. That is, the roller roller 3 usually includes a winding roller 33 and a clamping roller 34 rotatably connected to the frame (the frame is equipped with a bearing housing, and the clamping roller 34 is rotatably connected to the frame by fixedly inserting the bearing housing). The winding roller 33 has slots 331 at both ends for the clamping roller 34 to be pressed in. One clamping roller 34 is connected to the power source as the active end, and the other clamping roller 34 is the driven end. The clamping roller 34 usually needs to be pressed into the slot 331 by using a hydraulic oil gun, which requires the use of hydraulic tools, making the installation and disassembly operations inconvenient.

[0046] In response, this application optimizes and improves the structure and connection method of the roller 3, as follows:

[0047] In this embodiment, the roller roller 3 is the same as in the prior art, including a pressure roller 34 rotatably connected to the frame and a winding roller 33 detachably connected to the pressure roller 34. The winding roller 33 has slots 331 at both ends for the ends of the pressure roller 34 to be inserted. The improvement of this application is that the bottom of the slot 331 is provided with a connecting hole 332, and the pressure roller 34 has an installation channel 341 that connects to the slot 331. A connecting rod 342 is provided in the installation channel 341. One end of the connecting rod 342 extends out of the installation channel 341 and is provided with a nut head 343 that axially abuts against the end of the pressure roller 34. The other end extends into the slot 331 and is threaded to the connecting hole 332.

[0048] During the installation of the roller roller 3, the end of the clamping roller 34 can be pre-positioned into the slot 331 of the winding roller 33. Then, by tightening the nut head 343, the connecting rod 342 in the installation channel 341 is rotated, so that the end of the connecting rod 342 near the winding roller 33 extends into the wire groove 31 and is screwed into the connecting hole 332 through the thread. This causes the winding roller 33 and the clamping roller 34 to move closer to each other, and the clamping roller 34 is pressed towards the slot 331. Finally, the end of the clamping roller 34 is locked into the slot 331, completing the connection between the winding roller 33 and the clamping roller 34. The above technical solution achieves a tight connection by pre-positioning the pressure roller 34 and the winding roller 33, and then tightening the nut head 343. The operation is simple and quick, without the need for hydraulic tools, which greatly simplifies the installation process. In addition, the threaded connection ensures the tightness between the pressure roller 34 and the winding roller 33, making it less prone to loosening. When it is necessary to replace the roller roller 3 or the pressure roller 34, it can be easily disassembled by simply loosening the nut head 343, which reduces maintenance costs and time costs.

[0049] To further enhance the connection strength and prevent the connecting rod 342 from loosening, in this embodiment, the inner wall of the mounting channel 341 is threaded, and the connecting rod 342 is threadedly connected to the mounting channel 341.

[0050] Furthermore, the inner wall of the slot 331 is configured as an inner conical surface, with the width of the inner conical surface gradually increasing from the inside to the outside. The outer wall of the end of the clamping roller 34 that connects to the slot 331 is configured as an outer conical surface that matches the shape of the inner conical surface. Due to the inherent self-locking property of the conical surface fit, when the outer conical surface of the clamping roller 34 is inserted into the inner conical surface of the slot 331, the contact area between the two gradually increases due to the taper, thereby generating greater friction and enhancing the stability of the connection. In addition, the conical surface fit design makes it easier for the clamping roller 34 to slide into the slot 331 during installation, reducing the installation difficulty. Simultaneously, because the conical surface has a guiding function, it ensures that the clamping roller 34 maintains the correct position throughout the installation process.

[0051] The above are only specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of this utility model are covered by the patent scope of this utility model.

Claims

1. A diamond wire saw cutting machine, characterized in that: include: The wire cutting frame (2) is equipped with two sets of roller devices and two sets of wire take-up and take-up devices (4) for taking up and taking down diamond wire (1); Two sets of roller devices are arranged horizontally at intervals to form a cutting channel for the stone to pass through (5); Each roller assembly includes at least two sets of rollers (3) arranged longitudinally at intervals; The wire cutting frame (2) is provided with a guide rail (21), two sets of movable frames (22) slidably positioned on the guide rail (21), and at least one set of adjusting devices (23). The two sets of movable frames (22) are horizontally symmetrically arranged on the wire cutting frame (2), and the two sets of roller devices are respectively installed on the two sets of movable frames (22). The two sets of movable frames (22) slide synchronously towards each other or synchronously away from each other under the drive of the adjusting device (23) to adjust the horizontal distance between the two sets of roller devices.

2. The diamond wire saw cutting machine as described in claim 1, characterized in that: The adjusting device (23) includes an adjusting screw (231) rotatably connected to the wire cutting frame (2) and an adjusting motor (232) mounted on the wire cutting frame (2) for driving the adjusting screw (231) to rotate. The adjusting screw (231) has threaded sections with opposite directions at both ends. One threaded section of the adjusting screw (231) is provided with a first threaded sleeve (233) connected to a set of movable frames (22), and the other threaded section of the adjusting screw (231) is provided with a second threaded sleeve (234) connected to another set of movable frames (22).

3. The diamond wire saw cutting machine as described in claim 1, characterized in that: It also includes a worktable (8) arranged at a lower position relative to the cutting channel (5), the worktable (8) being connected to a lifting device (9), the lifting device (9) being used to drive the worktable (8) to move vertically relative to the cutting channel (5).

4. The diamond wire saw cutting machine as described in claim 3, characterized in that: The lifting device (9) includes several sets of support frames (91), which are connected to the bottom of the wire cutting frame (2). The several sets of support frames (91) are arranged in a ring around the worktable (8). Each set of support frames (91) is provided with a lifting component (92) that connects to the worktable (8). The several sets of lifting components (92) synchronously drive the worktable (8) to lift vertically.

5. The diamond wire saw cutting machine as described in claim 4, characterized in that: Each lifting assembly (92) includes a slide rail (921), a slider (922), and a lifting screw (923). The slide rail (921) extends longitudinally on the support frame (91). The slider (922) is slidably positioned on the slide rail (921) and connected to the worktable (8). The lifting screw (923) is rotatably positioned on the support frame (91), with one end connected to the slider (922) and the other end provided with a lifting motor (924) for driving the lifting screw (923) to rotate.

6. The diamond wire saw cutting machine as described in claim 5, characterized in that: The lifting motor (924) is a servo brake motor.

7. The diamond wire saw cutting machine as described in claim 5, characterized in that: Each set of support frames (91) forms a sealing mounting surface (93). Both ends of the slide rail (921) are respectively provided with longitudinally foldable sealing covers (94). The end of the sealing cover (94) away from the slide rail (921) extends longitudinally and is connected to the slider (922). The sealing mounting surface (93) and the sealing cover (94) enclose a sealing space with variable volume. The lifting screw (923) and the slide rail (921) are arranged on the sealing mounting surface (93) and are at least partially located in the sealing space.

8. The diamond wire saw cutting machine as described in claim 1, characterized in that: The roller (3) includes a pressure roller (34) rotatably connected to the wire cutting frame (2) and a winding roller (33) detachably connected to the pressure roller (34); the winding roller (33) is provided with slots (331) at both ends for the end of the pressure roller (34) to be inserted, and the bottom of the slot (331) is provided with a connecting hole (332). The pressure roller (34) has an installation channel (341) that connects to the slot (331). A connecting rod (342) is provided in the installation channel (341). One end of the connecting rod (342) extends out of the installation channel (341) and is provided with a nut head (343) that axially abuts the end of the pressure roller (34), and the other end extends into the slot (331) and is threaded to the connecting hole (332).

9. The diamond wire saw cutting machine as described in claim 8, characterized in that: The connecting rod (342) is threaded to the inner wall of the mounting channel (341).

10. The diamond wire saw cutting machine as described in claim 8, characterized in that: The inner wall of the slot (331) is configured as an inner conical surface, the width of which gradually increases from the inside to the outside. The outer wall of the end of the pressing roller (34) connected to the slot (331) is configured as an outer conical surface that matches the shape of the inner conical surface.

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