Machine and method for producing slabs directly in a granite quarry

Abstract

The invention discloses a machine and method for directly producing plate in granite mine. The machine is equipped with multiple saw blade main machines (0.8m, 1.2m, 1.5m, 1.7m) arranged in sequence according to size and different in diameter, each main machine has a hydraulic lifting device to adjust the cutting depth; a transverse walking and longitudinal guide rail structure is arranged to realize flexible movement of the main machine; the ore body platform has a depth over 1.3m back knife groove structure to process plate in two layers; a bottom cutting machine and an automatic polishing machine are also arranged. The use method is as follows: first, open the back knife groove on the ore body platform and divide the ore body into strips; after the machine is installed, adopt the "four-step method" to cut, i.e. different diameter saw blades are used to cut in sequence according to specific depth; after cutting is completed, the bottom cutting machine cuts the bottom horizontally; the rough plate is sent to the automatic polishing machine to polish according to material quality and thickness; finally, after detection, the plate is packed and loaded. The invention realizes direct production of plate in mine, improves production efficiency and product quality.

Description

Technical Field

[0001] This invention relates to equipment and methods for producing granite slabs from a mine, particularly to an ultra-large-scale equipment for directly cutting and processing slabs on a granite ore body and its operating method. Background Technology

[0002] With the adjustment of national policies on granite mines, large-scale mines and ore bodies have gradually become the mainstream, and traditional granite mining and processing methods can no longer meet the demands for efficient and low-cost production. Traditional methods require mining raw blocks in the mine and then transporting them to the factory for processing, a process that is costly, inefficient, wasteful of raw materials, and causes environmental pollution. Summary of the Invention

[0003] The present invention aims to provide an ultra-large equipment and its working method for cutting and processing granite ore bodies directly using a four-step method with coaxial, multi-blade, and constant linear speed, thereby eliminating the traditional steps of mining and transporting raw materials, reducing costs, increasing the utilization rate of raw materials, improving production efficiency, and reducing environmental pollution.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] Machines that produce slabs directly from granite quarries include multiple saw blades of equal diameter, a transverse travel device, a longitudinal guide rail, and a bottom cutting machine;

[0006] The multiple saw blade main units are each equipped with thin saw blades (4.5 mm) of different diameters, including four specifications: 0.8 m, 1.2 m, 1.5 m and 1.7 m in diameter. Each specification of saw blade can be fitted with 30-70 thin saw blades of the same diameter, arranged from front to back in order of saw blade size. Each saw blade main unit is equipped with an independent up and down blade advance and retraction device, main motor, main shaft, gearbox and V-belt drive.

[0007] Each of the aforementioned saw blade main units is equipped with a hydraulic lifting device, which consists of a hydraulic cylinder, a hydraulic pump station, and electrical controls. The cutting depth of the saw blade is adjusted by controlling the output pressure, flow rate, and time of the hydraulic pump station.

[0008] The lateral travel device is sequentially installed on the crossbeams arranged from front to back according to the corresponding saw blade size. The crossbeams are equipped with crossbeam guide rails. The lateral travel device drives the saw blade host to move laterally back and forth on the crossbeams of the ore body platform.

[0009] The longitudinal double guide rails are laid on the ore body platform and are perpendicular to the multiple crossbeams. They are used to guide the saw blade host to move longitudinally on the ore body platform. The guide rails include a longitudinal left guide rail and a longitudinal right guide rail. The saw blade host is equipped with a longitudinal walking motor and a positioning and locking device.

[0010] The return groove is set on the ore body platform, with a depth greater than 1.3 meters and a width of 2 meters, and is used for the main unit to raise and lower the saw blade in the return groove;

[0011] The bottom cutting machine includes a bottom cutting saw blade, a drive motor, and a lifting mechanism. The drive motor drives the bottom cutting saw blade to rotate, and the lifting mechanism adjusts the cutting height of the bottom cutting saw blade for horizontal bottom cutting after the main saw blade has finished cutting downwards.

[0012] Furthermore, the return groove includes two parallel grooves, with the ore body between the grooves divided longitudinally into several strips, each 1.9 meters wide, cut with a saw table, with the dividing line being approximately 15 millimeters wide and 1.3 meters deep, so as to process plates of conventional sizes.

[0013] A method for producing slabs directly in a granite quarry using the machine, the method comprising the following steps:

[0014] (1) On the ore body platform, two cutter grooves are first cut according to the equipment requirements. Use the cutting equipment to control the cutting depth to be greater than 1.3 meters and the width to be 2 meters, and ensure that the groove wall is flat.

[0015] (2) Cut the ore body in the middle of the return groove into several strips with a saw table at a width of 1.9 meters and a depth of 1.3 meters.

[0016] (3) Install the “double guide rails” on both sides of the cut ore body in parallel, and each “double guide rail” must be horizontal;

[0017] (4) Install the machine, arrange the main unit for small blades in front and the main unit for large blades in the back according to the size of the saw blades, and ensure that all parts are installed firmly and connected properly;

[0018] (5) The “four-step method” is used to complete the horizontal downward cutting of the board: First, the 0.8-meter saw blade cuts to a depth of 25cm, and then the 1.2-meter, 1.5-meter, and 1.7-meter saw blades are aligned with the previous cut kerf in turn, cutting to depths of 20cm, 15cm, and 5cm respectively; during the cutting process, the cutting situation is monitored in real time to ensure the cutting is stable.

[0019] (6) After the four main saw blades have cut to the required depth of 65cm, start the bottom cutting machine, adjust the height of the bottom cutting saw blade, and perform horizontal bottom cutting. Keep the bottom cutting machine moving smoothly during the bottom cutting process.

[0020] (7) The cut rough boards are fed into an automatic polishing machine for polishing through a conveying device;

[0021] (8) After the bottom is cut, the board is collected, packaged and loaded onto a truck or polished to complete the entire board processing process.

[0022] Furthermore, in the "four-step" cutting process, each saw blade host cuts along the previously cut kerf, and is precisely positioned by a positioning device before cutting to ensure the accuracy and efficiency of the cutting.

[0023] Furthermore, when the bottom cutting machine is cutting horizontally, it should ensure that the cutting surface is flat. The bottom cutting saw blade should be calibrated before cutting, and the cutting height should be observed in real time during the cutting process.

[0024] Furthermore, when the automatic polishing machine polishes the rough board, the polishing parameters should be adjusted according to the material and thickness of the board to ensure the polishing effect.

[0025] The beneficial effects of this invention are:

[0026] 1. Eliminating the step of mining raw materials reduces costs by approximately 15%.

[0027] 2. No need to leave bottom support for the raw blocks, saving approximately 12% of raw materials.

[0028] 3. By adopting thin-film and "constant linear velocity" technology, production efficiency is improved and the overall processing cost is reduced by approximately 8%.

[0029] 4. By integrating the mining and processing plants, the process of drilling holes and preparing raw materials using pneumatic drills is reduced, thus significantly reducing dust pollution. Attached Figure Description

[0030] Figure 1 This is a front view of the machine of the present invention;

[0031] Figure 2 This is a top view of the machine of the present invention;

[0032] Figure 3 This is a right view of the machine of the present invention;

[0033] Figure 4 for Figure 1 Enlarged view of point A (longitudinal guide rail);

[0034] Figure 5 for Figure 3 Enlarged view of point B (longitudinal travel motor);

[0035] Figure 6 This is a schematic diagram of the main structure of the machine of the present invention, which can install 30-70 thin saw blades. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] In the description of the embodiments of the present invention, "multiple" means at least two.

[0038] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0039] This invention provides a machine for producing slabs directly in granite mines, comprising multiple saw blade main units 1, a transverse traveling device 2, longitudinal double guide rails 3, and a bottom cutting machine;

[0040] The plurality of saw blade main units 1 are equipped with saw blades 5 of different diameters, including four specifications of 0.8 meters, 1.2 meters, 1.5 meters and 1.7 meters, and are arranged from front to back in order of saw blade size; each saw blade main unit 1 is equipped with an independent up and down blade advance and retraction device 6, a main motor 7, a main shaft 8, a gearbox 9 and a triangular drive belt 10;

[0041] Each of the saw blade main units 1 is equipped with a hydraulic lifting device 11, which consists of a hydraulic cylinder and a hydraulic pump station. The cutting depth of the saw blade is adjusted by controlling the output pressure, flow rate and time of the hydraulic pump station.

[0042] The transverse traveling device 2 is sequentially mounted on the crossbeams 12 arranged from front to back according to the size of the corresponding saw blade 5. The crossbeams 12 are equipped with crossbeam guide rails 13. The transverse traveling device 2 drives the saw blade host 1 to move laterally back and forth on the crossbeams 12 on the ore body platform 100.

[0043] The longitudinal double guide rail 3 is laid on the ore body platform 100 and is perpendicular to the multiple crossbeams 12. It is used to guide the saw blade host 1 to move longitudinally on the ore body platform 100. It includes a longitudinal left guide rail 14 and a longitudinal right guide rail 15. The saw blade host 1 is equipped with a longitudinal walking motor 16 and a positioning and locking device 17.

[0044] The return groove 4 is set on the ore body platform 100, with a depth greater than 1.3 meters and a width of 2 meters. It is used for lifting and feeding when the main saw blade is idle. The return groove 4 includes two parallel grooves. The ore body between the grooves is divided into several strips in the longitudinal direction. Each strip is about 1.9 meters wide and 1.3 meters deep, and is divided by the saw table.

[0045] The bottom cutting machine includes a bottom cutting saw blade, a drive motor, and a lifting mechanism. The drive motor drives the bottom cutting saw blade to rotate, and the lifting mechanism adjusts the cutting height of the bottom cutting saw blade for horizontal bottom cutting after the main saw blade has completed vertical cutting.

[0046] like Figure 6 As shown, it also includes a saw blade lifting assembly 18 and a bearing seat 19. The saw blade 5 in the figure is a thin saw blade of equal diameter (30-70 saw blades).

[0047] This equipment abandons the traditional production method: first mining (producing raw blocks), then transporting them to a factory for processing into slabs. Instead, after a certain area has been mined on the mine platform (greater than 100 meters in length and 60 meters in width), the equipment is directly installed on the mine platform to produce slabs. The specific method is as follows:

[0048] (1) First, cut two “return grooves” on the platform according to the equipment requirements. The grooves are 2 meters wide and more than 1.3 meters deep. Each groove can be processed in two layers (the first and second layers are about 0.65 meters high). Then, cut the ore body in the middle of the return groove with a saw table and divide it into several strips that are 1.9 meters wide and 1.3 meters deep in the longitudinal direction. The resulting plate is a general-purpose plate with a size of about 1.9 x 0.65 square meters.

[0049] (2) Install the machine directly, and install them in order of saw blade size: small blades first, large blades last; small blade diameter 0.8 meters, small-medium blade diameter 1.2 meters, large-medium blade diameter 1.5 meters, large blade diameter 1.7 meters;

[0050] (3) Small and large pieces are cut vertically downwards in sequence from light to dark; after the first layer is cut, the four main machines return and cut the second layer; the "four-step method" completes the horizontal downward cutting of the board.

[0051] ① First, the 0.8-meter saw blade of machine #1 cuts to a depth of about 25cm. After the cutting is completed, the machine moves longitudinally 1.4 meters and continues to cut forward.

[0052] ② Align the 1.2-meter saw blade of machine #2 with the kerf already cut by machine #1, and cut downwards to a depth of about 20cm;

[0053] ③The 1.5-meter saw blade of machine #3 cuts the kerf along machine #2 and then cuts downwards to a depth of about 15cm;

[0054] ④The 1.7-meter saw blade of machine #4 cuts about 5cm deeper down along the kerf already cut by machine #3;

[0055] (4) After the four main saw blades have cut the material in sequence according to the required depth of (65cm), the bottom is cut horizontally by the bottom cutting machine and the rough board enters the next process.

[0056] (5) After the automatic polishing machine polishes the board, it is packaged and loaded onto a vehicle (completing the entire board processing process).

[0057] In summary, the machine and method for directly producing slabs in granite mines according to the present invention, through the use of a super-large equipment with a crossbeam length of 24 meters, directly cuts and processes slabs on the ore body, eliminating the traditional steps of mining raw materials and transportation, reducing costs, improving efficiency, and reducing environmental pollution.

[0058] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A method for producing slabs directly from a granite quarry, characterized in that: The invention includes a machine for producing slabs directly in a granite quarry and the steps of using the machine to produce slabs directly in a granite quarry; the machine includes four main saw blades of equal diameter, a transverse traveling device, longitudinal double guide rails, a bottom cutting machine, and an automatic polishing machine. The four saw blade main units with equal diameters are equipped with saw blades of different diameters, including four specifications: 0.6-0.8 meters, 1.2 meters, 1.5 meters and 1.7 meters. Each specification of saw blade can be fitted with 30-70 thin saw blades of equal diameter, arranged from front to back according to the size of the saw blades, depending on the thickness of the plate. Each of the aforementioned saw blade main units is equipped with an independent saw blade of equal diameter, an up and down advance and retraction device, a main motor, a main shaft, a gearbox, a V-belt drive, and a transverse reciprocating motion device; each of the aforementioned saw blade main units is equipped with a hydraulic lifting device, which consists of a hydraulic cylinder, a hydraulic pump station, and an electrical control system, and the cutting depth of the saw blade is adjusted by controlling the output pressure, flow rate, and time of the hydraulic pump station. The transverse traveling device is sequentially installed on the crossbeams arranged from front to back according to the corresponding saw blade size. The crossbeams are equipped with crossbeam guide rails. The transverse traveling device drives the saw blade host to move laterally back and forth on the crossbeams of the ore body platform for cutting. The longitudinal double guide rails are laid on the ore body platform and are perpendicular to the multiple crossbeams. They are used to guide the saw blade host to move longitudinally on the ore body platform. The guide rails include a longitudinal left rail and a longitudinal right rail. The saw blade host is equipped with a longitudinal walking motor and a positioning and locking device. The return groove is set on the ore body platform, with a depth of more than 1.3 meters and a width of 2 meters. It is used for the main saw blade to feed when it is not in the main saw blade position and to process the plate in two layers. The bottom cutting machine includes a bottom cutting saw blade, a drive motor, and a lifting mechanism. The drive motor drives the bottom cutting saw blade to rotate, and the lifting mechanism adjusts the cutting height of the bottom cutting saw blade for horizontal bottom cutting after the main saw blade has finished cutting downwards. The steps include: (1) Two cutter grooves are cut on the ore body platform according to the equipment requirements. The cutting equipment is used to control the cutting depth to be greater than 1.3 meters and the width to be 2 meters, and to ensure that the groove wall is flat. (2) Cut the ore body in the middle of the return groove into several strips with a saw table at a length of 1.9 meters and a depth of 1.3 meters. The dividing line is 15 mm wide and 1.3 meters deep. (3) Install the "double guide rails" on both sides of the cut ore body in parallel, and each "double guide rail" must be horizontal; (4) Install the machine, arrange the main unit for small blades in front and the main unit for large blades in back according to the size of the saw blades, and ensure that all parts are installed firmly and connected properly; (5) The "four-step method" is used to cut the board horizontally downward: First, the 0.8-meter saw blade cuts to a depth of 25cm, and then the 1.2-meter, 1.5-meter, and 1.7-meter saw blades are aligned with the previous cut kerf in turn, cutting to depths of 20cm, 15cm, and 5cm respectively; during the cutting process, the cutting situation is monitored in real time to ensure the cutting is stable; during the "four-step method" cutting process, each saw blade host cuts along the previous cut kerf, and is precisely positioned by a positioning device before cutting to ensure the accuracy and efficiency of the cutting; (6) After the four main saw blades have cut to the required depth of 65cm in sequence, start the bottom cutting machine, adjust the height of the bottom cutting saw blade, and perform horizontal bottom cutting. Keep the bottom cutting machine moving smoothly during the bottom cutting process. (7) The cut rough boards are fed into an automatic polishing machine through a conveying device for polishing; (8) After polishing, the board is inspected using quality inspection tools. Once it passes inspection, it is packaged and loaded onto a vehicle to complete the entire board processing process.

2. The method according to claim 1, characterized in that: When the bottom cutting machine is used for horizontal bottom cutting, it should ensure that the cutting surface is flat. The bottom cutting saw blade should be calibrated before bottom cutting, and the condition of the cutting surface should be observed in real time during the bottom cutting process for subsequent polishing.

3. The method according to claim 1, characterized in that: When the automatic polishing machine polishes the rough board, the polishing parameters should be adjusted according to the material and thickness of the board to ensure the polishing effect.

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