Multi-strand string bead wire saw cutting device and cutting method

Abstract

The invention relates to the field of cutting machines, and discloses a multi-strand string bead wire saw cutting device and method, the device comprises two supporting stand columns, two roller assemblies arranged on each supporting stand column, a plurality of strands of string bead wire saws arranged on the four roller assemblies in a sleeving mode, and a first lifting mechanism; the lower roller assembly is in sliding connection with the supporting stand columns, and the first lifting mechanism is connected between the upper roller assembly and the lower roller assembly. Each roller assembly comprises a spindle box, a driving mechanism, a transmission spindle, a transmission roller and a first rubber ring, the transmission spindle is provided with a first shaft section and a second shaft section, the first shaft section is rotationally arranged in the spindle box, and the free end of the first shaft section extends out of the spindle box and is connected with the driving mechanism; the transmission roller is arranged outside the second shaft section in a sleeving manner and is connected with the second shaft section; the outer surface of the transmission roller is sequentially sleeved with a plurality of first rubber rings, and a containing groove is annularly formed in the circumferential face of each first rubber ring. The cutting device has the advantages that the cutting efficiency can be improved, and the cutting effect is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of cutting machine technology, specifically to a multi-strand beaded wire saw cutting device and cutting method. Background Technology

[0002] A beaded wire saw is a cutting tool with diamond beads spaced on a looped steel wire rope. It is suitable for cutting various hard materials and is currently mainly used in stone mining, construction, and slab cutting.

[0003] A wire saw cutting machine is a device used to drive a beaded wire saw to perform linear motion to achieve a cutting function. For example, Chinese invention patent application CN201910020878.4, filed on January 9, 2019, discloses a diamond beaded wire saw machine. However, existing wire saw cutting machines typically only drive one beaded wire saw to move, and the beaded wire saw cannot swing up and down as needed during the cutting process, resulting in low cutting efficiency and poor cutting effect. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a multi-strand beaded wire saw cutting device and method, solving the problems of low cutting efficiency and poor cutting effect in existing wire saw cutting machines.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] In a first aspect, a multi-strand beaded wire saw cutting device includes two support columns, two roller assemblies disposed on each support column, several strands of beaded wire saw sleeved on the four roller assemblies, and a first lifting mechanism.

[0007] Two roller assemblies are arranged vertically on the same support column. The lower roller assembly is slidably connected to the support column. A first lifting mechanism is connected between the upper and lower roller assemblies, and the lower roller assembly is driven to move up and down through the first lifting mechanism.

[0008] Each roller assembly includes a spindle box, a drive mechanism, a transmission spindle, a transmission roller, and a first rubber ring. The transmission spindle has a first shaft section and a second shaft section. The first shaft section is rotatably disposed inside the spindle box, and the free end of the first shaft section extends outside the spindle box and is connected to the drive mechanism. The transmission roller is sleeved on the outside of the second shaft section and is connected to the second shaft section. Several first rubber rings are sequentially sleeved on the outer surface of the transmission roller along the axial direction. Each first rubber ring has a receiving groove on its circumferential surface for accommodating a beaded wire saw.

[0009] Secondly, a cutting method for a multi-strand beaded wire saw cutting device, the cutting method comprising the following steps:

[0010] The material to be cut is placed below the cutting mesh formed by each strand of wire saw. Each roller assembly drives each strand of wire saw to cut the material.

[0011] During the cutting process of the material to be cut by each strand of beaded wire saw, at least one first lifting mechanism drives the lower roller assembly to adjust up and down, so that each strand of beaded wire saw forms an inclined or horizontal cutting mesh at the bottom.

[0012] Furthermore, the cutting method also includes the following steps:

[0013] During the process of each strand of beaded wire saw cutting the material to be cut, the second lifting mechanism drives each roller assembly and the first lifting mechanism to descend together, or the lifting mechanism lifts the material to be cut upwards.

[0014] The tension adjustment mechanism is used to adjust the tension of each strand of the beaded wire saw.

[0015] By adopting the above-described technical solution of the present invention, at least the following beneficial effects are achieved:

[0016] 1. By sequentially fitting several first rubber rings along the axial direction on the outer surface of the drive roller of each roller assembly, and each first rubber ring having a receiving groove for accommodating the beaded wire saw on its circumferential surface, multiple beaded wire saws can be simultaneously fitted onto the drive roller of each roller assembly during actual use, and the drive mechanism of each roller assembly can drive the drive roller to drive the multiple beaded wire saws synchronously, thereby effectively improving cutting efficiency.

[0017] 2. By designing the transmission spindle of each roller assembly to have a first shaft section and a second shaft section, and connecting the first shaft section to the spindle box, and fitting the transmission roller outside the second shaft section and connecting it to the second shaft section, the transmission spindle can be reliably supported by the spindle box during actual use, allowing the free end of the second shaft section to be suspended, thus facilitating the installation of the ring-shaped beaded wire saw onto the transmission roller and making it easy to replace the beaded wire saw.

[0018] 3. By designing a sliding connection between the lower roller assembly and the support column, and setting a first lifting mechanism between the upper and lower roller assemblies, the lower roller assembly can be moved up and down during use. Through the cooperation of the two first lifting mechanisms on the two support columns, the beaded wire saw can be effectively adjusted up and down during cutting. Specifically, the two lower roller assemblies can be positioned at the same height, resulting in a horizontal cutting surface; or they can be positioned at different heights, resulting in an inclined cutting surface. Therefore, this not only improves the cutting effect but also better meets various cutting needs and enhances operational flexibility.

[0019] 4. By designing the transmission roller to have a first tapered cavity section and a second tapered cavity section inside, a first tapered plug is installed in the first tapered cavity section, and the free end of the second shaft section is locked to the first tapered plug section by a locking nut and a threaded section. A second tapered plug is installed in the second tapered cavity section, and the narrow ends of the first tapered cavity section and the second tapered cavity section are arranged to face each other. This makes it very convenient to replace the transmission roller and the first rubber ring during actual use. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the multi-strand beaded wire saw cutting device of the present invention;

[0021] Figure 2 This is a bottom view of the multi-strand beaded wire saw cutting device of the present invention;

[0022] Figure 3 This is a front view of the multi-strand beaded wire saw cutting device of the present invention;

[0023] Figure 4 This is an assembly diagram of the supporting column, roller assembly, first lifting mechanism, and second lifting mechanism of the present invention;

[0024] Figure 5 This is a cross-sectional view of the roller assembly of the present invention after removing the drive mechanism;

[0025] Figure 6 for Figure 5 A magnified view of part A in the middle;

[0026] Figure 7 for Figure 5 A magnified view of part B in the middle;

[0027] Figure 8 This is a cross-sectional view of the transmission roller of the present invention;

[0028] Figure 9 for Figure 8 A magnified view of part C in the middle;

[0029] Figure 10 This is a front view of the tension adjustment mechanism of the present invention;

[0030] Figure 11 This is a cross-sectional view of the tension wheel shaft and the first bearing wheel after assembly according to the present invention;

[0031] Figure 12 for Figure 11 A magnified view of part D in the middle;

[0032] Figure 13 This is a cross-sectional view of the pressure roller of the present invention;

[0033] Figure 14 This is an assembly structure diagram of the synchronous shaft, the second lead screw motor, and the commutator of the two second lifting mechanisms of the present invention when they share a second lead screw motor.

[0034] Figure label:

[0035] Cutting device 100;

[0036] Support column 1, connecting frame 11;

[0037] Roller assembly 2, spindle box 21, extended straight section 211, drive mechanism 22, transmission spindle 23, first shaft section 231, second shaft section 232, threaded section 2321, transmission roller 24, first tapered cavity section 241, second tapered cavity section 242, expanded diameter straight cavity section 243, second embedded groove 244, first rubber ring 25, receiving groove 251, second embedded protruding ring 252, locking nut 26, first tapered plug 27, second tapered plug 28;

[0038] First lifting mechanism 3, first lead screw motor 31, first lead screw 32, first motor base 33, first lead screw base 34;

[0039] Second lifting mechanism 4, second lead screw motor 41, second lead screw 42, second motor base 43, second lead screw base 44, third lead screw base 45, synchronous shaft 46, commutator 47, first bevel gear 471, second bevel gear 472;

[0040] Tension adjustment mechanism 5, support structure 51, tension wheel shaft 52, third shaft section 521, fourth shaft section 522, first bearing wheel 53, first wheel body 531, second bearing 532, bushing 533, swing frame 54, swing drive cylinder 55, pressing wheel 56, pressing groove 561, second bearing wheel 562, third embedded groove 5621, second wheel body 5622, third bearing 5623, second rubber ring 563, third embedded protruding ring 5631, support end plate 564, mounting shaft 5641;

[0041] Support slide 61, lifting slide rail 62, lifting slider 63;

[0042] First bearing 71, oil seal structure 72, sealing end cover 721, sealing element 722;

[0043] First embedded groove 81, first embedded protrusion 82. Detailed Implementation

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Example 1

[0046] Please see the appendix Figures 1 to 14 As shown, the present invention provides a multi-strand beaded wire saw cutting device 100. The cutting device 100 includes two support columns 1, two roller assemblies 2 disposed on each support column 1, a plurality of beaded wire saws (not shown) sleeved on the four roller assemblies 2, and a first lifting mechanism 3. The plurality of beaded wire saws, after being sleeved on the four roller assemblies 2, can form a cutting mesh surface at the bottom for cutting materials such as stone.

[0047] Two roller assemblies 2 are arranged vertically on the same support column 1. The lower roller assembly 2 is slidably connected to the support column 1. A first lifting mechanism 3 is connected between the upper and lower roller assemblies 2. The lower roller assembly 2 is driven to move up and down by the first lifting mechanism 3. In specific implementation of the present invention, the lower roller assembly 2 can be adjusted up and down by at least one first lifting mechanism 3, so that each strand of beaded wire saw can form an inclined or horizontal cutting mesh surface at the bottom to better meet the actual cutting needs.

[0048] Each roller assembly 2 includes a spindle box 21, a drive mechanism 22, a transmission spindle 23, a transmission roller 24, and a first rubber ring 25. The transmission spindle 23 has a first shaft section 231 and a second shaft section 232, and the outer diameter of the second shaft section 232 is smaller than the outer diameter of the first shaft section 231. The first shaft section 231 is rotatably disposed within the spindle box 21, allowing the first shaft section 231 to rotate relative to the spindle box 21. The free end of the first shaft section 231 extends outside the spindle box 21 and is connected to the drive mechanism 22, so that the drive mechanism 22 drives the transmission spindle 23 to rotate. The transmission roller 24 is sleeved on the second shaft section. The outer surface of the transmission roller 24 is connected to the second shaft section 232, so that the second shaft section 232 can drive the transmission roller 24 to rotate. Several first rubber rings 25 are sequentially sleeved on the outer surface of the transmission roller 24 along the axial direction. Each first rubber ring 25 has a receiving groove 251 for accommodating the beaded wire saw on its circumferential surface. In use, multiple strands of beaded wire saws can be sleeved into the receiving grooves 251 of the first rubber rings 25 of each roller assembly 2. During operation, the transmission roller 24 is driven to rotate by the drive mechanism 22 of each roller assembly 2, thereby driving each strand of beaded wire saw to perform the cutting function.

[0049] By adopting the above-described technical solution of the present invention, at least the following beneficial effects are achieved:

[0050] 1. By sequentially sleeved with a number of first rubber rings 25 along the axial direction on the outer surface of the transmission roller 24 of each roller assembly 2, and each first rubber ring 25 having a receiving groove 251 for accommodating the beaded wire saw on its circumferential surface, multiple strands of beaded wire saws can be sleeved on the transmission roller 24 of each roller assembly 2 during actual use, and the drive mechanism 22 of each roller assembly 2 drives the transmission roller 24 to drive the multiple strands of beaded wire saws to perform synchronous transmission, thereby effectively improving the cutting efficiency.

[0051] 2. By designing the transmission spindle 23 of each roller assembly 2 to have a first shaft section 231 and a second shaft section 232, and connecting the first shaft section 231 to the spindle box 21, and sleeve the transmission roller 24 on the outside of the second shaft section 232 and connect it to the second shaft section 232, the transmission spindle 23 can be reliably supported by the spindle box 21 during actual use, so that the free end of the second shaft section 232 can be suspended, thereby facilitating the installation of the ring-shaped beaded wire saw onto the transmission roller 24, and also facilitating the replacement of the beaded wire saw.

[0052] 3. By designing a sliding connection between the lower roller assembly 2 and the support column 1, and setting a first lifting mechanism 3 between the upper and lower roller assemblies 2, the lower roller assembly 2 can be moved up and down during use. Through the cooperation of the two first lifting mechanisms 3 on the two support columns 1, the beaded wire saw can be adjusted up and down during the cutting process. Specifically, the two lower roller assemblies 2 can be at the same height, resulting in a horizontal cutting surface; or they can be at different heights, resulting in an inclined cutting surface. Therefore, this not only improves the cutting effect but also better meets various cutting needs and enhances the flexibility of use.

[0053] In some embodiments of the present invention, the cutting device 100 further includes a second lifting mechanism 4; the upper roller assembly 2 is slidably connected to the support column 1, and the second lifting mechanism 4 is connected between the support column 1 and the upper roller assembly 2, thereby driving the upper and lower roller assemblies 2 and the first lifting mechanism 3 to move up and down together.

[0054] The present invention, through the design of the cutting device 100, also includes a second lifting mechanism 4, and the upper roller assembly 2 is slidably connected to the support column 1. The second lifting mechanism 4 is connected between the support column 1 and the upper roller assembly 2. This allows the object to be cut to remain stationary during the cutting process, and the second lifting mechanism 4 drives each roller assembly 2 and the first lifting mechanism 3 to move up and down together, thereby driving each strand of the wire saw to actively descend and cut the object. Of course, the above is only one specific embodiment of the present invention, but the present invention is not limited to this. In specific implementations, the upper roller assembly 2 can be fixedly connected to the support column 1, and a lifting mechanism (not shown) can be used to lift the object to be cut during the cutting process to achieve cutting.

[0055] In some embodiments of the present invention, the cutting device 100 further includes at least one tension adjustment mechanism 5; the tension adjustment mechanism 5 is disposed above or below the mesh surface formed by each strand of beaded wire saw, and tension adjustment is achieved by using the tension adjustment mechanism 5 to press against each strand of beaded wire saw. The present invention, by arranging the tension adjustment mechanism 5 above or below the mesh surface formed by each strand of beaded wire saw, allows for tension adjustment of each strand of beaded wire saw during actual use, ensuring that the beaded wire saw can better cut the object to be cut; specifically, in practical implementation, when the tension adjustment mechanism 5 is located above the mesh surface formed by each strand of beaded wire saw, the mesh surface can be pressed down by the tension adjustment mechanism 5 to achieve tension adjustment; and when the tension adjustment mechanism 5 is located below the mesh surface formed by each strand of beaded wire saw, the mesh surface can be lifted up by the tension adjustment mechanism 5 to achieve tension adjustment.

[0056] As one specific embodiment of the present invention, please refer to the following: Figure 3 and Figure 4 As shown, the first lifting mechanism 3 includes a first lead screw motor 31, a first lead screw 32, a first motor base 33, and a first lead screw base 34;

[0057] Each roller assembly 2's spindle box 21 is slidably connected to the support column 1 via a support slide 61, allowing the entire roller assembly 2 to move up and down relative to the support column 1. A first motor seat 33 is mounted on the support slide 61 of the upper roller assembly 2, a first lead screw seat 34 is mounted on the support slide 61 of the lower roller assembly 2, a first lead screw motor 31 is mounted on the first motor seat 33, the upper end of the first lead screw 32 is connected to the first lead screw motor 31, and the lower middle part of the first lead screw 32 is screwed to the first lead screw seat 34. During operation, the first lead screw motor 31 drives the first lead screw 32 to rotate, thereby driving the lower roller assembly 2 to move up and down. In specific implementations of this invention, to ensure the stability of the roller assembly 2 during up and down movement, lifting slide rails 62 are provided on both sides of the support column 1 along the vertical direction. Each support slide 61 and each lifting slide rail 62 is slidably connected via at least two lifting sliders 63.

[0058] As one specific embodiment of the present invention, please refer to the following: Figures 2 to 4 as well as Figure 14 As shown, the second lifting mechanism 4 includes a second lead screw motor 41, a second lead screw 42, a second motor base 43, a second lead screw base 44, and a third lead screw base 45;

[0059] The second motor base 43 is mounted on the support column 1, the second lead screw base 44 is mounted on the support slide 61 of the upper roller assembly 2, and the third lead screw base 45 is mounted on the support column 1 and located below the second lead screw base 44; the second lead screw motor 41 is mounted on the second motor base 43, the upper end of the second lead screw 42 is connected to the second lead screw motor 41, the middle part of the second lead screw 42 is screwed to the second lead screw base 44, and the lower middle part of the second lead screw 42 is screwed to the third lead screw base 45; during operation, the second lead screw motor 41 drives the second lead screw 42 to rotate, thereby driving the upper and lower roller assemblies 2 and the first lifting mechanism 3 to move up and down as a whole. When the material to be cut is relatively high, the second lifting mechanism 4 drives the upper and lower roller assemblies 2 and the first lifting mechanism 3 to move up and down over a relatively large range. At this time, the overall length of the second lead screw 42 is relatively long. Therefore, by connecting the lower middle part of the second lead screw 42 to the support column 1 through the third lead screw seat 45, the stability of the second lead screw 42 during use can be ensured.

[0060] In some embodiments of the present invention, the two second lifting mechanisms 4 share a single second lead screw motor 41. The upper ends of the two supporting columns 1 are connected by a connecting frame 11. The second lead screw motor 41 is mounted on the connecting frame 11 via a second motor base 43, thereby supporting the second lead screw motor 41. The second lead screw motor 41 is connected to the upper ends of the two second lead screws 42 via a synchronous shaft 46 and a commutator 47, respectively, so that the two second lead screws 42 can be driven to rotate synchronously by the same second lead screw motor 41. In a specific implementation of the present invention, the commutator 47 may specifically include a horizontally arranged first bevel gear 471 and a vertically arranged second bevel gear 472. The first bevel gear 471 is connected to the synchronous shaft 46, and the second bevel gear 472 is connected to the upper end of the second lead screw 42, and the first bevel gear 471 and the second bevel gear 472 mesh with each other. This invention, by designing two second lifting mechanisms 4 to share a single second lead screw motor 41, ensures the synchronicity of the two second lifting mechanisms 4 during operation and also helps reduce the overall implementation cost. Of course, the above is only one specific embodiment of this invention, but the invention is not limited thereto. In specific implementations, each second lifting mechanism 4 can be equipped with a second lead screw motor 41 according to actual needs, and the two second lead screw motors 41 can be controlled to work synchronously during operation.

[0061] In some embodiments of the present invention, please refer to the following: Figures 5 to 9As shown, the roller assembly 2 also includes a locking nut 26. The interior of the transmission roller 24 has a first tapered cavity section 241 formed at the end away from the spindle box 21. The first tapered cavity section 241 is equipped with a first tapered plug 27. The free end of the second shaft section 232 has a threaded section 2321. The threaded section 2321 passes through the first tapered plug 27 and is locked by the locking nut 26. The interior of the transmission roller 24 has a second tapered cavity section 242 formed at the end near the spindle box 21. The second tapered cavity section 242 is equipped with a second tapered plug 28. The other end of the second shaft section 232 passes through the second tapered plug 28. The second tapered plug 28 and the second shaft section 232 are connected by a key and a keyway (not shown). The narrow ends of the first tapered cavity section 241 and the second tapered cavity section 242 are arranged facing each other.

[0062] This invention designs the transmission roller 24 to have a first tapered cavity section 241 and a second tapered cavity section 242. A first tapered plug 27 is installed in the first tapered cavity section 241. The free end of the second shaft section 232 is locked to the first tapered plug 27 by a locking nut 26 and a threaded section 2321. A second tapered plug 28 is installed in the second tapered cavity section 242, with the narrow ends of the first and second tapered cavity sections 241 and 242 facing each other. This design allows for easy disassembly and replacement of the transmission roller 24 during use. Simply disconnect the first tapered plug 27 from the free end of the second shaft section 232 and remove the first tapered plug 27 (by unscrewing the locking nut 26). By using the first tapered plug 27, the entire transmission roller 24 and the first rubber ring 25 can be pulled out and removed from the free end of the second shaft section 232. After the new transmission roller 24 is fitted onto the outside of the second shaft section 232, the first tapered plug 27 is simply plugged into the first tapered cavity section 241, and the transmission roller 24 is tightened by the cooperation of the first tapered plug 27 and the second tapered plug 28. The assembly is completed by connecting the free end of the second shaft section 232 to the first tapered plug 27 (that is, by tightening the locking nut 26 onto the threaded section 2321, the first tapered plug 27 and the second tapered plug 28 can cooperate to tighten the transmission roller 24). Therefore, it is very convenient to replace the transmission roller 24 and the first rubber ring 25.

[0063] The spindle box 21 has an extended straight section 211 that is inserted into the transmission roller 24. The transmission roller 24 has an enlarged diameter straight cavity section 243 formed at the position corresponding to the extended straight section 211, and the second tapered cavity section 242 is located at the end of the enlarged diameter straight cavity section 243 close to the first tapered cavity section 241. By adopting the above structural design, after assembly, the extended straight section 211 can be used to abut against the second tapered plug 28, thereby enabling the first tapered plug 27 and the second tapered plug 28 to better press the transmission roller 24 together.

[0064] Both ends of the spindle box 21 are rotatably connected to the first shaft segment 231 via at least one first bearing 71, allowing the transmission spindle 23 to rotate relative to the spindle box 21. In a specific implementation, both ends of the spindle box 21 can be rotatably connected to the first shaft segment 231 via two first bearings 71, allowing the spindle box 21 to better support the transmission spindle 23. Furthermore, oil seal structures 72 are provided at both ends of the spindle box 21 to achieve a sealing effect. By providing oil seal structures 72 at both ends of the spindle box 21, this invention prevents the lubricating oil added to the spindle box 21 from leaking to the outside during use, thus ensuring smoother rotation of the transmission spindle 23. It also prevents external dust and other impurities from entering the interior of the spindle box 21.

[0065] In one specific embodiment of the present invention, the oil seal structure 72 specifically includes a sealing end cover 721 and a sealing element 722. The sealing end cover 721 is locked to the end face of the spindle box 21. Specifically, multiple screws can be used to lock and fix the sealing end cover 721 to the end face of the spindle box 21 together. The sealing element 722 is disposed between the first shaft section 231 and the sealing end cover 721 to achieve a sealing effect. The sealing element 722 can specifically be a rubber sealing element.

[0066] In a specific implementation of this invention, a first embedded groove 81 and a first embedded protruding ring 82 are provided between the sealing end cap 721 of the oil seal structure 72 near the second tapered plug 28 and the second tapered plug 28. By adopting the above structural design, it is ensured that the second tapered plug 28 can rotate relative to the oil seal structure 72, and that the oil seal structure 72 can provide a supporting effect on the second tapered plug 28.

[0067] In some embodiments of the present invention, the outer surface of the transmission roller 24 is provided with a second embedding groove 244, and the inner surface of the first rubber ring 25 is provided with a second embedding protrusion 252. The second embedding protrusion 252 is embedded in the second embedding groove 244 to ensure that the first rubber ring 25 sleeved on the transmission roller 24 will not move axially during operation.

[0068] In some embodiments of the present invention, please refer to the following: Figures 10 to 13 As shown, the tension adjustment mechanism 5 includes a support structure 51, a tension wheel shaft 52, a first bearing wheel 53, a swing frame 54, a swing drive cylinder 55, and a pressing wheel 56. The swing drive cylinder 55 can be implemented using a hydraulic cylinder.

[0069] The support structure 51 is connected between two support columns 1, which satisfies the support requirements of the tension adjustment mechanism 5 and enhances the connection strength between the two support columns 1. The tension wheel shaft 52 has a third shaft section 521 and a fourth shaft section 522. The third shaft section 521 is connected to the support structure 51 to reliably support the entire tension wheel shaft 52. Each beaded wire saw is provided with a first bearing wheel 53 on the fourth shaft section 522. Each first bearing wheel 53 is rotatably connected to the fourth shaft section 522, allowing each first bearing wheel 53 to rotate relative to the fourth shaft section 522. Each first bearing wheel 53 is connected to a pressing wheel 56 on both sides through a swing frame 54. Each pressing wheel 56 has a pressing groove 561 for pressing against the beaded wire saw on its circumference. Each pressing wheel 56 is equipped with a swing drive cylinder 55. One end of the swing drive cylinder 55 is connected to the support structure 521. One end of the swing drive cylinder 55 is connected to the other end of the swing frame 54 on both sides of the first bearing wheel 53. The swing drive cylinder 55 drives the swing frame 54 to swing the pressure roller 56 to adjust the tension of the beaded wire saw. Since the first bearing wheel 53 is rotatably connected to the fourth shaft segment 522, and the pressure roller 56 is connected to the first bearing wheel 53 through the swing frame 54, the extension and retraction of the swing drive cylinder 55 can drive the swing frame 54 and the first bearing wheel 53 to swing. 3. The fourth shaft segment 522 is rotated and oscillated as the rotation center, which in turn drives the pressure roller 56 to oscillate up and down, so that the pressure roller 56 can press down on the beaded wire saw or push against the beaded wire saw. Specifically, when the tension adjustment mechanism 5 is above the mesh surface, the pressure roller 56 needs to press down on the beaded wire saw, and when the tension adjustment mechanism 5 is below the mesh surface, the pressure roller 56 needs to push against the beaded wire saw, thereby realizing the adjustment of the tension of the beaded wire saw.

[0070] This invention designs the tensioning wheel shaft 52 to have a third shaft section 521 and a fourth shaft section 522, with multiple first bearing wheels 53 rotatably mounted on the fourth shaft section 522. Each first bearing wheel 53 has a support roller 56 connected to both sides of its swing frame 54. A swing drive cylinder 55 is provided between the swing frame 54 and the support structure 51 on both sides of each first bearing wheel 53. This allows the swing drive cylinder 55 to drive the support rollers 56 during use, enabling tension adjustment of the multi-strand beaded wire saw, thus ensuring the cutting effect of each beaded wire saw. Simultaneously, connecting the tensioning wheel shaft 52 to the support structure 51 via the third shaft section 521 allows the free end of the fourth shaft section 522 to be suspended while meeting support requirements, facilitating maintenance and other operations.

[0071] In a preferred embodiment of the present invention, the swing frame 54 is a triangular swing frame. Because in specific implementations of the present invention, the swing frame 54 needs to simultaneously connect the pressure roller 56, the swing drive cylinder 55, and the first bearing wheel 53, designing the swing frame 54 as a triangular swing frame better meets the connection requirements and ensures strength, preventing damage during use. Preferably, the swing frame 54 is a right-angled triangular swing frame.

[0072] In some embodiments of the present invention, in order to achieve a rotatable connection between the first bearing wheel 53 and the fourth shaft segment 522, the first bearing wheel 53 includes a first wheel body 531 and a second bearing 532 disposed between the first wheel body 531 and the fourth shaft segment 522, and a bushing 533 is provided between two adjacent second bearings 532 to ensure that there is no axial movement between two adjacent first bearing wheels 53 after assembly; the swing frame 54 is connected to the first wheel body 531 so that the swing frame 54 can rotate with the first wheel body 531.

[0073] In some embodiments of the present invention, the pressing roller 56 includes a second bearing roller 562, a second rubber ring 563 sleeved on the second bearing roller 562, and a support end plate 564; both sides of the second bearing roller 562 are provided with support end plates 564, and the second bearing roller 562 is rotatably connected to the support end plate 564, so that the second bearing roller 562 can rotate relative to the support end plate 564; the swing frame 54 is connected to the support end plate 564, so that the swing frame 54 can drive the entire pressing roller 56 to swing; the circumferential surface of the second bearing roller 562 is ring-shaped. A third embedding groove 5621 is provided, and a third embedding protrusion 5631 is provided on the inner surface of the second rubber ring 563. The abutting groove 561 is provided on the outer surface of the second rubber ring 563, and the third embedding protrusion 5631 is embedded in the third embedding groove 5621 to ensure that the second rubber ring 563 can be reliably assembled with the second bearing wheel 562 after assembly. At the same time, since the second bearing wheel 562 itself can rotate relative to the support end plate 564, the abutting pressure roller 56 can effectively reduce the impact on the transmission of the beaded wire saw when it abuts against the beaded wire saw.

[0074] In one specific embodiment of the present invention, in order to achieve the rotatable connection between the second bearing wheel 562 and the support end plate 564, the second bearing wheel 562 includes a second wheel body 5622 and a third bearing 5623; the support end plate 564 is provided with a mounting shaft portion 5641 in the middle of each of its opposite sides, and the third bearing 5623 is assembled between the second wheel body 5622 and the mounting shaft portion 5641.

[0075] Example 2

[0076] Please see the appendix Figures 1 to 14This invention provides a cutting method for a multi-strand beaded wire saw cutting device 100. The specific structure of the cutting device 100 and the technical effects it achieves are exactly the same as in Embodiment 1. Please refer to the detailed description of Embodiment 1 for details, which will not be repeated here. The cutting method includes the following steps:

[0077] The material to be cut is placed below the cutting mesh formed by each strand of beaded wire saw. Each roller assembly 2 drives each strand of beaded wire saw to perform cutting on the material.

[0078] During the cutting process of the wire saws, at least one first lifting mechanism 3 drives the lower roller assembly 2 to adjust up and down, so that each wire saw forms an inclined or horizontal cutting mesh at the bottom. In specific implementation, the invention can control one or two first lifting mechanisms 3 to drive the lower roller assembly 2 to adjust up and down as needed, and can make each wire saw form an inclined cutting mesh at the bottom to improve cutting sharpness and thus improve cutting effect; or it can make each wire saw form a horizontal cutting mesh at the bottom.

[0079] In some embodiments of this invention, the cutting method further includes the following steps:

[0080] During the cutting process of the material to be cut by each strand of beaded wire saw, the second lifting mechanism 4 drives each roller assembly 2 and the first lifting mechanism 3 to descend together, so that the cutting mesh surface formed by each strand of beaded wire saw at the bottom can actively descend for cutting operation; or the material to be cut is lifted upward by the lifting mechanism (not shown), so that the material to be cut is lifted to the cutting mesh surface formed by each strand of beaded wire saw at the bottom for cutting.

[0081] The tension adjustment mechanism 5 adjusts the tension of each strand of wire saw, enabling each strand of wire saw to better cut the material. Specifically, the tension adjustment mechanism 5 can be controlled to press the wire saw downwards from above the mesh surface formed by each strand of wire saw, or it can be controlled to push against the wire saw upwards from below the mesh surface formed by each strand of wire saw.

[0082] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-strand beaded wire saw cutting device, characterized in that, It includes two support columns, two roller assemblies on each support column, several strands of beaded wire saws fitted on the four roller assemblies, and a first lifting mechanism; Two roller assemblies are arranged vertically on the same support column. The lower roller assembly is slidably connected to the support column. A first lifting mechanism is connected between the upper and lower roller assemblies, and the lower roller assembly is driven to move up and down through the first lifting mechanism. Each roller assembly includes a spindle box, a drive mechanism, a transmission spindle, a transmission roller, and a first rubber ring. The transmission spindle has a first shaft section and a second shaft section. The first shaft section is rotatably disposed inside the spindle box, and the free end of the first shaft section extends outside the spindle box and is connected to the drive mechanism. The transmission roller is sleeved on the outside of the second shaft section and is connected to the second shaft section. Several first rubber rings are sequentially sleeved on the outer surface of the transmission roller along the axial direction. Each first rubber ring has a receiving groove on its circumferential surface for accommodating a beaded wire saw.

2. The multi-strand beaded wire saw cutting device according to claim 1, characterized in that, It also includes a second lifting mechanism; the upper roller assembly is slidably connected to the support column, and the second lifting mechanism is connected between the support column and the upper roller assembly. The second lifting mechanism drives the upper and lower roller assemblies and the first lifting mechanism to move up and down together.

3. The multi-strand beaded wire saw cutting device according to claim 1, characterized in that, It also includes at least one tension adjustment mechanism; the tension adjustment mechanism is located above or below the mesh surface formed by each strand of beaded wire saw, and tension adjustment is achieved by using the tension adjustment mechanism to abut against each strand of beaded wire saw.

4. The multi-strand beaded wire saw cutting device according to claim 2, characterized in that, The first lifting mechanism includes a first lead screw motor, a first lead screw, a first motor base, and a first lead screw base; Each roller assembly's spindle box is slidably connected to a support column via a support slide; a first motor seat is located on the support slide of the upper roller assembly, a first lead screw seat is located on the support slide of the lower roller assembly, a first lead screw motor is located on the first motor seat, the upper end of the first lead screw is connected to the first lead screw motor, and the lower middle part of the first lead screw is screwed to the first lead screw seat.

5. The multi-strand beaded wire saw cutting device according to claim 4, characterized in that, The second lifting mechanism includes a second lead screw motor, a second lead screw, a second motor base, a second lead screw base, and a third lead screw base; The second motor seat is mounted on the support column, the second lead screw seat is mounted on the support slide of the upper roller assembly, and the third lead screw seat is mounted on the support column and located below the second lead screw seat; the second lead screw motor is mounted on the second motor seat, the upper end of the second lead screw is connected to the second lead screw motor, the middle part of the second lead screw is screwed to the second lead screw seat, and the lower middle part of the second lead screw is screwed to the third lead screw seat.

6. The multi-strand beaded wire saw cutting device according to claim 5, characterized in that, The two second lifting mechanisms share a second lead screw motor. The upper ends of the two support columns are connected by a connecting frame, and the second lead screw motor is mounted on the connecting frame. The second lead screw motor is connected to the upper ends of the two second lead screws respectively through a synchronous shaft and a commutator.

7. The multi-strand beaded wire saw cutting device according to claim 1, characterized in that, The roller assembly also includes a locking nut. The interior of the transmission roller has a first tapered cavity section at the end furthest from the spindle box, and the first tapered cavity section is equipped with a first tapered plug. A threaded section is formed at the free end of the second shaft section, passing through the first tapered plug and being locked by the locking nut. The interior of the transmission roller also has a second tapered cavity section at the end closest to the spindle box, and the second tapered cavity section is equipped with a second tapered plug. The other end of the second shaft section passes through the second tapered plug, and the second tapered plug and the second shaft section are connected by a key and a keyway. The narrow ends of the first and second tapered cavity sections face each other. The spindle box has an extended straight section that is inserted into the transmission roller. The transmission roller has an enlarged diameter straight cavity section formed at the position corresponding to the extended straight section, and the second tapered cavity section is located at the end of the enlarged diameter straight cavity section close to the first tapered cavity section. Both ends of the spindle box are rotatably connected to the first shaft segment through at least one first bearing, and both ends of the spindle box are provided with oil seal structures.

8. The multi-strand beaded wire saw cutting device according to claim 3, characterized in that, The tension adjustment mechanism includes a support structure, a tension wheel shaft, a first bearing wheel, a swing frame, a swing drive cylinder, and a pressure roller. The support structure is connected between two support columns; the tensioning wheel shaft has a third shaft section and a fourth shaft section. The third shaft section is connected to the support structure, and the fourth shaft section is equipped with a first bearing wheel corresponding to each beaded wire saw. Each first bearing wheel is rotatably connected to the fourth shaft section. Each first bearing wheel is connected to a pressure roller on both sides through a swing frame. Each pressure roller has a pressure groove on its circumference for pressing against the beaded wire saw. Each pressure roller is equipped with a swing drive cylinder. One end of the swing drive cylinder is connected to the support structure, and the other end of the swing drive cylinder is connected to the swing frame on both sides of the first bearing wheel. The swing drive cylinder drives the swing frame to swing the pressure roller to adjust the tension of the beaded wire saw.

9. A cutting method based on the multi-strand beaded wire saw cutting device according to any one of claims 1-8, characterized in that, The cutting method includes the following steps: The material to be cut is placed below the cutting mesh formed by each strand of wire saw. Each roller assembly drives each strand of wire saw to cut the material. During the cutting process of the material to be cut by each strand of beaded wire saw, at least one first lifting mechanism drives the lower roller assembly to adjust up and down, so that each strand of beaded wire saw forms an inclined or horizontal cutting mesh at the bottom.

10. The cutting method of the multi-strand beaded wire saw cutting device according to claim 9, characterized in that, The cutting method further includes the following steps: During the cutting process of the wire saw, the second lifting mechanism drives each roller assembly and the first lifting mechanism to descend together, or the lifting mechanism lifts the material to be cut upwards. The tension adjustment mechanism is used to adjust the tension of each strand of the beaded wire saw.

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