A descending pendulum type wire saw machine

Abstract

A descending swing type wire saw machine, which comprises a rack body, a plurality of supporting columns symmetrically and spaced from each other, and a supporting cross frame fixedly installed between the top of the supporting columns; a lifting mechanism comprising at least one sliding rail correspondingly arranged on the supporting column, and a plurality of tensioning assemblies slidingly arranged on the sliding rail, and a lifting frame arranged in the supporting column, and a driving assembly arranged on the top of the lifting frame; a cutting mechanism comprising a roller assembly and a wire net correspondingly arranged in the lifting frame, and a cutting area formed between the roller assembly and the wire net for cutting materials; the lifting mechanism can stabilize the wire saw machine to cut the materials; when the wire saw machine is descending, the tensioning assembly can effectively improve the cutting stability, improve the cutting quality, and adjust the tensioning force to reduce the vibration and ensure the safety of the stone processing and the operator.

Description

Technical Field

[0001] This utility model belongs to the field of stone cutting technology, specifically relating to a descending oscillating wire saw. Background Technology

[0002] Wire saws are a type of mechanical equipment widely used in the field of material processing, mainly for cutting various hard materials such as stone, metal, and glass. With their fine saw blades and flexible operation, wire saws offer unique advantages in cutting complex shapes and requiring precision, making them popular among many processing companies.

[0003] However, in actual use, traditional wire saws are prone to loosening during the cutting process, resulting in insufficient stability during cutting. Especially when the wire saw moves up and down to cut, it may collide with hard stone, causing the machine to shake. This instability will affect the cutting accuracy, resulting in wavy or uneven cut surfaces, reducing production efficiency and processing quality, and may also pose safety hazards to the equipment and operators. Utility Model Content

[0004] (a) Technical problems to be solved In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a downward swing-type wire saw to solve the existing problems. (II) Technical Solution To achieve the above objectives, this utility model is implemented through the following technical solution: a descending oscillating wire saw, comprising: The frame body includes several support columns arranged symmetrically at intervals, and a support crossbar fixedly installed between the tops of the support columns; The lifting mechanism includes at least one slide rail correspondingly disposed on the support column, and several tensioning components slidably disposed on the slide rail. The inner side of each of the symmetrically spaced support columns is provided with a lifting frame. The top of the lifting frame is provided with a driving component for driving its movement. The lifting frame is slidably connected to the slide rail through the tensioning components to realize lifting movement. The cutting mechanism includes roller assemblies that are horizontally arranged inside the lifting frames on both sides, and wire mesh that surrounds the roller assemblies, wherein the roller assemblies and wire mesh form a cutting area for cutting materials. Below the roller assembly, there is a material transport vehicle containing materials. The material transport vehicle transports the materials to the area below the cutting zone. The drive assembly drives the lifting frame to rise and fall, thereby driving the roller assembly and wire mesh to rise and fall to cut the materials.

[0005] Furthermore, the slide rails are correspondingly arranged on the outside of the support column, and two tensioning components are slidably arranged on each slide rail at intervals. The lifting frame is fixedly arranged between the tensioning components on both sides, wherein the two tensioning components on each side are fixedly installed with the lifting frame at vertical intervals.

[0006] Furthermore, the tensioning assembly includes a slider fixing seat, one end of which is fixedly connected to the lifting frame, and the other end of which is slidably connected to the slide rail. The slider fixing seat has at least two positioning holes. The side of the slider fixing seat near the slide rail is provided with a guide shaft corresponding to the positioning holes. One end of the guide shaft is fixedly provided with a tensioning slider and a slider nylon plate fixedly connected to the tensioning slider, and the other end of the guide shaft passes through the positioning holes. The side of the slider fixing seat away from the slide rail is provided with a tensioning seat. The tensioning seat has a mounting hole coaxial with the positioning holes, and a tensioning bolt is provided in the mounting hole.

[0007] Furthermore, the mounting hole is spirally connected to the tensioning bolt, and the tension force is controlled by rotating the tensioning bolt. A tensioning spring is also provided between the tensioning bolt and the guide shaft to adjust and control the tension force. A dust cover is fitted on the outer wall of the tensioning seat to prevent dust.

[0008] Furthermore, the driving component includes a lifting groove located in the middle of the lifting frame, a transmission screw is connected in the lifting groove, the top of the transmission screw serves as the driven end and is equipped with a reducer, and the output end of the reducer is connected to the driven end of the transmission screw for driving the lifting frame to rise and fall.

[0009] Furthermore, the reducer is provided with a fixing component at the bottom, which is fixed to the top support crossbeam by bolts. The lifting groove is also provided with at least one section of lead screw protective cover on the side near the wire mesh, and the lead screw protective cover is fixed to the lifting frame by bolts.

[0010] Furthermore, the top and bottom of the lifting frame are both provided with mounting brackets extending inward, and the roller assembly is rotatably mounted on the mounting brackets. The top hinge of the bottom mounting bracket is provided with a flipping platform.

[0011] Furthermore, the roller assembly includes rollers that are horizontally rotatably mounted on the top and bottom mounting brackets of the lifting frame, respectively. A drive motor is provided at either end of the roller to drive the roller to swing.

[0012] Furthermore, a wire mesh assembly is provided on the side wall of the lifting frame on any side, which includes a wire take-up and release device and a winding motor located below the wire take-up and release device. A tensioner for adjusting the wire mesh tension is provided on one side of the wire take-up and release device for winding and adjusting the wire mesh.

[0013] Furthermore, the outer wall of the slide rail is fitted with a slide rail pad, and the outer wall of the slide rail has a smooth end face or has several grooves, so that the slide rail pad and the slider nylon plate can slide in contact or engage in sliding contact.

[0014] (III) Beneficial Effects The beneficial effects of this utility model are: The lifting mechanism provided by this utility model allows the wire saw to stably cut materials during descent; when the wire saw is cutting downwards, the tensioning component effectively improves cutting stability, reduces surface roughness and dimensional deviation, improves cutting quality, and increases production efficiency. Furthermore, the adjustable tension ensures stable operation of the lifting frame, reduces vibration, improves cutting accuracy and surface quality, and ensures the safety of stone processing and operators. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of a descending oscillating wire saw according to an embodiment of the present invention. Figure 1 ; Figure 2 This is a front view of a descending oscillating wire saw according to an embodiment of the present invention; Figure 3 This is a partial structural schematic diagram of the tensioning component according to an embodiment of the present utility model; Figure 4 This is an exploded view of the tensioning assembly according to an embodiment of the present invention; Figure 5 This is a partial structural schematic diagram of a descending oscillating wire saw according to an embodiment of the present invention; Figure 6 This is a partial cross-sectional view of the lifting mechanism according to an embodiment of the present utility model; Figure 7 for Figure 6 A partially enlarged sectional view of index A in the middle; Figure 8 This is a schematic diagram of the overall structure of a descending oscillating wire saw according to an embodiment of the present invention. Figure 2 ; Figure 9 This is a schematic diagram of the tensioning component according to another embodiment of the present invention.

[0016] Explanation of key figure labels: 1. Frame body; 11. Support column; 12. Support crossbeam; 13. Material transport vehicle; 2. Upgrade the organization; 21. Slide rail; 211. Slide rail pad; 22. Tensioning assembly; 221. Slider fixing seat; 222. Positioning hole; 223. Guide shaft; 224. Tensioning slider; 225. Slider nylon plate; 226. Tensioning seat; 227. Mounting hole; 228. Tensioning bolt; 229. Tensioning spring; 230. Dust cover; 23. Lifting frame; 231. Lifting groove; 232. Transmission screw; 233. Reducer; 2331. Fixing component; 2332. Screw protective cover.

[0017] 24. Drive assembly; 25. Wire mesh assembly; 251. Take-up and untake-down device; 252. Take-up motor; 253. Tensioner; 26. Mounting bracket; 27. Tilting platform; 3. Cutting mechanism; 31. Roller assembly; 311. Roller; 312. Drive motor; 32. Wire mesh. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] A descending oscillating wire saw according to an embodiment of this utility model. Example 1 Figure 1 This is a schematic diagram of the overall structure of a descending oscillating wire saw according to an embodiment of the present invention. Figure 2 This is a front view of a descending oscillating wire saw according to an embodiment of the present invention, as shown below. Figure 1-2 As shown, a descending oscillating wire saw according to an embodiment of the present invention will be described in detail, comprising: The frame body 1 includes a plurality of support columns 11 arranged symmetrically at intervals, and a support crossbeam 12 fixedly installed between the tops of the support columns 11. In this embodiment, the plurality of support columns 11 are preferably arranged in two groups, which are symmetrically spaced on the left and right sides, respectively, wherein each group has two support columns 11 symmetrically spaced front and back. The lifting mechanism 2 includes at least one slide rail 21 correspondingly disposed on the outside of the support column 11, and a plurality of tensioning components 22 slidably disposed on the slide rail 21. In this embodiment, the slide rail 21 is preferably one, that is, each support column 11 is provided with a slide rail 21. Accordingly, in this embodiment, four support columns 11 are provided with four slide rails 21. The inner sides of the two sets of support columns 11 symmetrically spaced on the left and right are provided with lifting frames 23. That is, there are also two lifting frames 23 on the left and right sides. The top of each lifting frame 23 is provided with a driving component 24 for driving its movement. Therefore, there are also two driving components 24 respectively disposed on the left and right lifting frames 23. The lifting frames 23 are slidably connected to the slide rail 21 through the tensioning components 22 to realize lifting movement. The cutting mechanism 3 includes roller assemblies 31 horizontally arranged inside the left and right lifting frames 23 respectively, and wire mesh 32 surrounding the roller assemblies 31. That is, the roller assemblies 31 are also provided in two groups, left and right, and are located inside the left and right lifting frames 23. The roller assemblies 31 of the left group are located on the right side of the left lifting frame 23, and the roller assemblies 31 of the right group are located on the left side of the right lifting frame 23. The roller assemblies 31 of the left and right groups and the wire mesh 32 form a cutting area for cutting materials. That is, the area between the left and right lifting frames 23 is the cutting area. Below the roller assembly 31, a material transport trolley 13 is provided. The material transport trolley 13 contains materials, and guide rails for the material transport trolley 13 to move are provided between the support columns 11. The length and width of the guide rails are set according to actual production needs. The material transport trolley 13 transports materials through the guide rails. The material transport trolley 13 transports materials to the area below the cutting zone with the direction of the support columns 11 on the left and right sides as the transport direction. That is, the material transport trolley 13 moves from left to right or from right to left between two sets of support columns 11 that are symmetrically arranged front and back. Then, the drive assembly 24 drives the lifting frame 23 to move vertically up and down, thereby driving the roller assembly 31 and the wire mesh 32 to move up and down to cut the materials.

[0020] It should be noted that in this embodiment, the side where each of the two sets of support columns 11 is located is defined as the left and right sides, and the side where the slide rail 21 located on the outside of the support column 11 is located is defined as the front and rear sides.

[0021] Please see Figure 1-2 The slide rails 21 are respectively arranged on the outer side of the support column 11. That is, four slide rails 21 are respectively arranged on the front and rear sides of the left and right support groups 11. Each slide rail 21 has two tensioning components 22 slidably arranged at intervals. That is, there are a total of eight tensioning components 22 in this embodiment. Four tensioning components 22 are arranged on the slide rails 21 on the left and right sides respectively. The tensioning components 22 on each side are arranged in pairs on the front and rear slide rails 21. The tensioning components 22 can slide vertically up and down on the slide rails 21. The lifting frame 23 is fixedly arranged between the tensioning components 22 on both sides. Taking the lifting frame 23 on the left side as an example, the lifting frame 23 on this side is arranged between the two sets of tensioning components 22 arranged at the front and rear on this side. The two tensioning components 22 on each side are fixedly installed with the lifting frame 23 at intervals.

[0022] Please see Figure 3-4The tensioning assembly 22 includes a slider fixing seat 221. One end of the slider fixing seat 221 is fixedly connected to the side wall of the lifting frame 23, and the other end is slidably connected to the slide rail 21. The slider fixing seat 221 is divided into a fixed plate part (fixedly connected to the side wall of the lifting frame 23) and a slider seat part (slidably connected to the slide rail 21), which are formed in one piece. That is, in this embodiment, the fixed plate part of the slider fixing seat 221 is fixed to the front and rear sides of the lifting frame 23. It is rectangular in shape and is firmly fixed to the side wall of the lifting frame 23 by bolts. The slider seat part of the slider fixing seat 221 is the slider seat part. The other end serves as the sliding end, and its shape is a slider seat composed of three slider segments that are continuously bent at 90 degrees. One segment of the slider seat is vertically connected to the fixed plate in an integral manner, and forms a locking groove with the other two continuously bent 90-degree three-segment slider seats. This locking groove is slidably connected to the slide rail. At the same time, in order to limit the sliding of the slider fixing seat 221, a corresponding tensioning and limiting structure is provided on the slider fixing seat 221. This structure is set along the slider segments that are continuously bent at 90 degrees at adjacent ends in the slider seat part. By setting them perpendicular to each other at 90 degrees, a limiting force is given to the slide rail 21 in two directions, improving the stability and firmness of the tensioning component.

[0023] The tensioning and limiting structure is described below: Please see Figure 3-4The slider holder 221 has at least two positioning holes 222. In this embodiment, the two positioning holes 222 are located on two adjacent slider segments that are perpendicular to each other at ninety degrees. The side of the slider holder 221 closest to the slide rail 21, that is, the part of the internal engagement groove of the slider holder 221, which is also the part between the outer wall of the slide rail 21 and the inner wall of the engagement groove, has a guide shaft 223 corresponding to the positioning hole 222. That is, the guide shaft 223 is coaxially arranged with the positioning hole 222. The number of guide shafts 223 is the same as that of positioning holes 222, also two. Each guide shaft 223 has a tensioning slider 224 fixedly mounted at one end near the inner wall of the slide rail 21. A slider nylon plate 225 is fixedly connected to the tensioning slider 224, and the slider nylon plate 225 contacts the outer wall of the slide rail 21. The other end of the tensioning slider 224 passes through the positioning hole 222. A tensioning seat 226 is fixedly mounted on the side of the slider fixing seat 221 away from the slide rail 21, and the tensioning seat 226 has several threaded holes, thereby securing the slider. The mounting base also has corresponding threaded holes for bolt fixing. The tensioning seat 226 has a mounting hole 227 coaxial with the positioning hole 222. A tensioning bolt 228 is installed in the mounting hole 227. For adjustment, the mounting hole 227 and the tensioning bolt 228 are spirally connected. The user can rotate the tensioning bolt 228 clockwise or counterclockwise to move it spirally towards or away from the guide shaft, thus controlling the tension. The tensioning bolt 228 and the guide shaft 223... A tension spring 229 is also provided. In this embodiment, the tension spring 229 is preferably a disc spring. Specifically, when the operator rotates the tension bolt 228, the elastic force of the spring also applies a tension force to the guide shaft. Those skilled in the art will understand that the operator can select a torque wrench to adjust the tension bolt 228, and apply different forces to the disc spring 229 by different torques to adjust the tension of the slider. The outer wall of the tension seat 226 is fitted with a dust cover 230 to prevent dust.

[0024] It should be noted that, from the inside to the outside of the slider fixing seat 221, the components are, in sequence, a slider nylon plate 225, a tension slider 224, a guide shaft 223, a positioning hole 222, a tension spring 229, a tension seat 226 (with an internal mounting hole 227), a tension bolt 228, and a dust cover 230. The user rotates the outer tension bolt 228 to move it inward, thereby compressing the tension spring 229. The tension spring transmits the compressive force to the guide shaft 223 through its elastic force, and finally to the inner slider nylon plate 225. The slider nylon plate 225 provides tension by contacting the outer wall of the slide rail. When the drive assembly 24 drives the lifting frame 23 to move up and down on the slide rail 21, it can ensure stability and firmness during operation. In this embodiment, the side where the engaging groove is located is defined as the inside and the side where the tension seat is located is defined as the outside. Therefore, the inside of the slider fixing seat 221, i.e. the inside of the engaging groove, has three inner walls (corresponding to the three-segment slider segment with continuous 90-degree bends mentioned above).

[0025] Please see Figure 5 , Figure 6 and Figure 7 The drive assembly 24 includes a lifting groove 231 and a transmission screw 232 connected to the lifting groove 231. The lifting groove 231 is located in the middle of the lifting frame 23 and is vertically oriented. The top of the lifting groove 231 is provided with a threaded section that engages with the transmission screw 232 in a helical transmission. The top of the transmission screw 232 serves as the driven end and is equipped with a reducer 233. The output end of the reducer 233 is connected to the driven end of the transmission screw 232. When the reducer 233 drives the transmission screw 232 to rotate, the lifting frame 23 can be raised and lowered by the helical transmission between the threaded section at the top of the lifting groove 231 and the transmission screw 232.

[0026] Please see Figure 6 To improve stability, the reducer 233 is equipped with a fixing member 2331 at its bottom, which mainly serves to fix the reducer 233. The fixing member 2331 is fixed to the top support crossbeam 12 by bolts. For easy maintenance, the lifting groove 231 is an open groove design, that is, two slots are longitudinally spaced at two ends on the side of the lifting frame 23 near the wire mesh and corresponding to the lifting groove 231. This is for workers to inspect the lead screw on the inner wall of the lifting groove 231. Correspondingly, at least one section of lead screw protective cover 2332 is also provided on the side of the lifting groove 231 near the wire mesh 32. In this embodiment, the lead screw protective cover 2332 is longitudinally spaced in two sections. The lead screw protective cover 2332 fits the slots perfectly, and the lead screw protective cover 2332 is fixed to the lifting frame 23 by bolts to improve its stability.

[0027] Please see Figure 1-5 The lifting frame 23 has mounting brackets 26 extending inwards from both the top and bottom, meaning that each side of the lifting frame 23 has a mounting bracket 26 at the top and bottom, forming two groups of mounting brackets 26, for a total of four mounting brackets 26. The roller assembly 31 is rotatably mounted on the corresponding mounting bracket 26, and thus the roller assembly 31 also has two groups of left and right. The top of the mounting bracket 26 located at the bottom is hinged to a flip platform 27. The flip platform 27 provides a maintenance environment for users when parts may be damaged. Maintenance personnel can stand on the flip platform 27 to repair the corresponding parts, further improving the safe working environment.

[0028] Please see Figure 5 In this embodiment, each roller assembly 31 includes rollers 311 that are horizontally rotatable on the top and bottom mounting brackets 26 of the lifting frame 23, respectively. That is, each mounting bracket 26 on the left and right sides is provided with a roller 311, for a total of four rollers 311. Each roller 311 is equipped with a drive motor 312 at one end to drive the roller 311 to swing. The wire mesh 32 is wound on the rollers 311 in the left and right sides (a total of four rollers 311).

[0029] Please see Figure 8 A wire mesh assembly 25 is provided on the side wall of the lifting frame 23 on any side. It includes a take-up and unload device 251 and a take-up motor 252 located below the take-up and unload device 251. A tensioner 253 is provided on one side of the take-up and unload device 251 to adjust the tension of the wire mesh 32. The wire mesh 32 is conveyed and wound onto the roller 311 by the take-up motor 252, the tensioner 253, and then the take-up and unload device 251. The take-up motor 252 can control the winding force and speed, while the tensioner 253 can adjust the tension of the wire mesh 32, which facilitates material cutting and improves efficiency.

[0030] Please see Figure 3The slide rail 21 is vertically fixed on the outer wall of the support column 11. To improve the service life of the slide rail 21, each slide rail 21 is fitted with a slide rail pad 211 on its outer wall. The outer wall of the slide rail 21 has a smooth end face, so the slide rail pad 211 slides in contact with the slider nylon plate 225. It can be understood that the slider nylon plate 225 will contact the slide rail pad 211. The slide rail pad 211 is adapted to the length of the slide rail 21, and the width is also adapted to the outer wall of the slide rail 21. In this embodiment, the slide rail 21 has a rectangular cross-section, so the slide rail 21 has four outer walls. When the slide rail 21 is installed with the support column 11, one outer wall fits into the support column 11, while the other three outer walls correspond to the three inner walls of the locking groove inside the slider fixing seat 211. The positioning hole in this embodiment also corresponds to two adjacent outer walls of the slide rail 21. In other words, the tensioning and limiting structure also corresponds to these two adjacent outer walls. When the tensioning component moves up and down on the slide rail 21, it will provide two mutually perpendicular tensioning pressures to these two adjacent outer walls. By applying tension forces in two mutually perpendicular directions at the same time, the lifting frame maintains better stability when lifting and cutting materials.

[0031] Example 2 For the sake of brevity, the parts that are the same as in Embodiment 1 will not be described again. The main focus here is on the structure that is different from Embodiment 1 of this utility model. The only difference between Embodiment 2 and Embodiment 1 is the slide rail.

[0032] Please see Figure 9 In this embodiment, the outer wall of the slide rail 21 is fitted with a slide rail pad 211. The outer wall of the slide rail 21 has several grooves, and the corresponding slide rail pad 211 is disposed in the inner wall of each groove. The shape of the slider nylon plate 225 is also perfectly matched with the groove. Unlike embodiment 1, the slider nylon plate 225 not only slides in contact with the slide rail pad 211 in the groove, but also, through the setting of the groove, the two side walls of the groove provide a lateral engaging force to the tension slider 224 or the slider nylon plate 225, further improving stability. Thus, the slide rail pad 211 and the slider nylon plate 225 engage and slide in contact.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A descending oscillating wire saw, characterized in that, It includes: The frame body (1) includes a number of support columns (11) arranged symmetrically at intervals, and a support crossbeam (12) fixedly installed between the tops of the support columns (11). The lifting mechanism (2) includes at least one slide rail (21) correspondingly arranged on the support column (11), and a plurality of tensioning components (22) slidably arranged on the slide rail (21). The inner side of the support column (11) is provided with a lifting frame (23), and the top of the lifting frame (23) is provided with a driving component (24) for driving its movement. The lifting frame (23) is slidably connected to the slide rail (21) through the tensioning component (22) to realize lifting movement. The cutting mechanism (3) includes roller assemblies (31) that are respectively horizontally arranged inside the lifting frame (23) on both sides, and wire mesh (32) that surrounds the roller assemblies (31). The roller assemblies (31) and the wire mesh (32) form a cutting area for cutting materials. The roller assembly (31) is also provided with a material transport vehicle (13) below it. The material transport vehicle (13) contains materials and transports the materials to the area below the cutting area. The drive assembly (24) drives the lifting frame (23) to rise and fall, thereby driving the roller assembly (31) and the wire mesh (32) to rise and fall to cut the materials.

2. The descending oscillating wire saw machine according to claim 1, characterized in that: The slide rail (21) is correspondingly arranged on the outside of the support column (11). Two tensioning components (22) are slidably arranged on each slide rail (21) at intervals. The lifting frame (23) is fixedly arranged between the tensioning components (22) on both sides. The two tensioning components (22) on each side are fixedly installed with the lifting frame (23) at intervals.

3. A descending oscillating wire saw machine according to claim 2, characterized in that: The tensioning assembly (22) includes a slider fixing seat (221). One end of the slider fixing seat (221) is fixedly connected to the lifting frame (23), and the other end is slidably connected to the slide rail (21). The slider fixing seat (221) has at least two positioning holes (222). The side of the slider fixing seat (221) near the slide rail (21) is provided with a guide shaft (223) corresponding to the positioning hole (222). One end of the guide shaft (223) is fixedly provided with a tensioning slider (224) and a slider nylon plate (225) fixedly connected to the tensioning slider (224). The other end of the guide shaft (223) is inserted into the positioning hole (222). The side of the slider fixing seat (221) away from the slide rail (21) is provided with a tensioning seat (226). The tensioning seat (226) is provided with a mounting hole (227) coaxial with the positioning hole (222). The mounting hole (227) is provided with a tensioning bolt (228).

4. A descending oscillating wire saw machine according to claim 3, characterized in that: The mounting hole (227) is spirally connected to the tensioning bolt (228). The tensioning force is controlled by rotating the tensioning bolt (228). A tensioning spring (229) is also provided between the tensioning bolt (228) and the guide shaft (223) for adjusting and controlling the tensioning force. A dust cover (230) is fitted on the outer wall of the tensioning seat (226) to prevent dust.

5. A descending oscillating wire saw according to claim 2, characterized in that: The drive assembly (24) includes a lifting groove (231) located in the middle of the lifting frame (23). A transmission screw (232) is connected in the lifting groove (231). The top of the transmission screw (232) serves as the driven end and is equipped with a reducer (233). The output end of the reducer (233) is connected to the driven end of the transmission screw (232) to drive the lifting frame (23) to rise and fall.

6. A descending oscillating wire saw machine according to claim 5, characterized in that: The reducer (233) is provided with a fixing part (2331) at the bottom. The fixing part (2331) is fixed to the support cross frame (12) at the top by bolts. The lifting groove (231) is also provided with at least one section of screw guard (2332) on the side near the wire mesh (32). The screw guard (2332) is fixed to the lifting frame (23) by bolts.

7. A descending oscillating wire saw according to claim 2, characterized in that: The lifting frame (23) has a mounting bracket (26) extending inward at both the top and bottom. The roller assembly (31) is rotatably mounted on the mounting bracket (26). The top hinge of the mounting bracket (26) at the bottom has a flip platform (27).

8. A descending oscillating wire saw according to claim 7, characterized in that: The roller assembly (31) includes rollers (311) that are horizontally rotatable on the top and bottom mounting brackets (26) of the lifting frame (23), respectively. A drive motor (312) is provided at either end of the roller (311) to drive the roller (311) to swing.

9. A descending oscillating wire saw according to claim 1, characterized in that: A wire mesh assembly (25) is provided on the side wall of the lifting frame (23) on any side, which includes a take-up and release device (251) and a winding motor (252) located below the take-up and release device (251). A tensioner (253) for adjusting the tension of the wire mesh (32) is provided on one side of the take-up and release device (251) for winding and adjusting the wire mesh (32).

10. A descending oscillating wire saw according to claim 2, characterized in that: The slide rail (21) is fitted with a slide rail pad (211) on its outer wall. The outer wall of the slide rail (21) is a smooth end face or has several grooves. The slide rail pad (211) slides or engages with the slider nylon plate (225) in a planar sliding contact.

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