Double-saw-blade cutting machine for preparing shaped refractory product sample

Abstract

The utility model relates to a double-saw-blade cutting machine for preparing a shaped refractory product sample. The double-saw-blade cutting machine comprises a saw blade, a saw blade transmission system, a spraying device, a sample carrying table and a track, the device further comprises a rack, a water collecting tank and a multi-sample clamp; the saw blade adopts a diamond saw blade, a needle bearing group is arranged between the saw blade transmission shaft and the bearing seat, and the track adopts a linear slide rail; the multi-sample clamp is provided with a V-shaped seat and a pressing plate, a sample is arranged in a V-shaped groove in the top of the V-shaped seat, and the top of the sample is fixed through the pressing plate. The problems that a guide rail of a refractory material cutting machine is prone to corrosion, stability is poor during saw blade cutting, cutting efficiency is low and the like are solved, a saw blade transmission shaft adopts a needle bearing, the radial size is small, load is high, movement is stable, the service life is long, a cutting machine track adopts a linear sliding rail, precision is high, corrosion is not prone to occurring, and maintenance is convenient; by adopting the multi-sample clamp, a plurality of samples can be fixed at multiple angles at one time, the operation is simple, and the sample preparation efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of refractory product sample preparation, in particular to a double-saw blade cutting machine for preparing shaped refractory product samples. Background Art

[0002] To accurately measure and evaluate the performance and quality of refractory products, it is necessary to determine properties such as compressive strength, refractoriness under load, and thermal expansion coefficient. When testing shaped refractory materials, the finished refractory product must be precisely drilled and cut. The dimensions of the refractory specimens used for testing must be extremely precise, requiring strict control over their verticality, parallelism, and flatness.

[0003] Existing brick cutters on the market typically use a single-blade saw. When preparing refractory product samples, they must first secure the sample and cut one end, then reverse the direction and cut the other end. This can easily lead to positioning errors when resetting the sample after reversing cutting direction. Because standard refractory material testing methods require very high sample dimensional accuracy, this method makes it difficult to produce samples that meet standard requirements.

[0004] In addition, the linear guide rails used to secure the specimens in common wet-cut brick cutting machines are mostly roller-type. These are easily soaked by water and corroded and worn by broken bricks and debris during operation. Consequently, the linear motion accuracy of the specimen stage deteriorates over time, making it difficult for the surface flatness of the cut specimen to meet standard requirements.

[0005] The saw blade drive shaft of the existing brick cutting machine mostly uses ball bearings. After a period of use, the bearing transmission accuracy decreases, and the saw blade is prone to slight shaking during cutting, resulting in an uneven sample surface and large dimensional deviation.

[0006] The sample fixtures used in existing brick cutting machines generally adopt a method of clamping the two side fixtures in the horizontal direction. The sample fixing and replacement time is long, and only one sample can be fixed at a time, resulting in long sample preparation time and difficult operation. Summary of the Invention

[0007] The utility model provides a double saw blade cutting machine for preparing shaped refractory product samples, which overcomes the problems of easy corrosion of the guide rails of the refractory material cutting machine, poor stability of the saw blade during cutting, and low cutting efficiency. The saw blade drive shaft adopts a needle bearing, which has a small radial size, high load, stable movement, and a long service life. The cutting machine track adopts a linear slide rail, which has high precision, is not easy to rust, and is easy to maintain. A multi-sample clamp is used to fix multiple samples at multiple angles at one time, which is simple to operate and greatly improves the sample preparation efficiency.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] The application discloses a double-saw-blade cutting machine for preparing shaped refractory product samples, which comprises a saw-blade cutting machine composed of a saw blade, a saw blade transmission system, a spraying device, a sample loading table and a track; the sample loading table moves along the track, the saw blade is arranged above the sample loading table, the saw blade is driven by the saw blade transmission system, and the spraying device is arranged above the saw blade; the double-saw-blade cutting machine further comprises a rack, a water collecting tank and a multi-sample clamp; the rack is arranged below the sample loading table, a track support is arranged on the top of the rack, the track is arranged on the track support, and the water collecting tank is arranged outside the track support on the top of the rack; the saw blade is a diamond saw blade, two parallel saw blades are connected with the saw blade transmission system through a saw blade transmission shaft, and a group of needle roller bearings are arranged between the saw blade transmission shaft and a bearing block; the track is a linear slide rail; the multi-sample clamp is provided with a V-shaped seat and a pressing plate, a sample is arranged in a V-shaped groove on the top of the V-shaped seat, and the top of the sample is fixed by the pressing plate.

[0010] Further, the saw blade transmission system is composed of a motor and a transmission belt; the motor is arranged in the rack; one end of the transmission belt is arranged on the output shaft of the motor, and the other end of the transmission belt is arranged on the saw blade transmission shaft; a transmission belt protection cover is arranged outside the transmission belt.

[0011] Further, the group of needle roller bearings is composed of a first needle roller bearing and a second needle roller bearing; the first needle roller bearing is arranged at one end of the saw blade transmission shaft close to the transmission belt, and the second needle roller bearing is arranged at one end of the saw blade transmission shaft close to the saw blade; the bearing block is arranged on the rack through a support; the bearing block is provided with an end block at the outer end of the first needle roller bearing and the second needle roller bearing, and is locked by a locking nut.

[0012] Further, the saw blade transmission shaft is a stepped shaft; the shaft segments for arranging the two saw blades are sequentially provided with an inside pressing block, a first saw blade, an intermediate positioning sleeve, a second saw blade, an outside pressing block and an end locking nut from inside to outside; the width of the intermediate positioning sleeve is the same as the height of a standard sample.

[0013] Further, a saw blade protection cover is arranged outside the saw blade, and the saw blade protection cover is fixedly connected with the bearing block; the top of the saw blade protection cover is provided with a through hole; the spraying device is a spraying water pipe; one end of the spraying water pipe is connected with a water tank through a water pump, and the other end of the spraying water pipe vertically penetrates the through hole in the top of the saw blade protection cover.

[0014] Further, the sample loading table is a hollow structure with a reverse U-shaped cross section and two open ends; the bottom of the sample loading table is slidably connected with the linear slide rail through a sliding table, and the two side edges of the sample loading table respectively extend to the lower parts of the corresponding linear slide rails; a slide rail protection cover is arranged above the linear slide rail; the slide rail protection cover is arranged along the linear slide rail, and is a reverse U-shaped structure matched with the sample loading table; the two ends of the slide rail protection cover penetrate the inside of the sample loading table, and the two ends are respectively connected with the bottom of the water collecting tank through end supports.

[0015] Furthermore, the multi-sample fixture consists of a positioning base, a V-shaped seat and a pressure plate; the positioning base is arranged on the top of the sample loading platform, a positioning groove is set on the positioning base, the V-shaped seat is arranged in the positioning groove and is fixed by a fastening bolt; a plurality of V-shaped grooves are set on the V-shaped seat, the length direction of the V-shaped groove is perpendicular to the linear slide rail, and the V-shaped seat and the pressure plate are fixedly connected by a fastening bolt and a limit pin; a cutting groove is correspondingly set on the V-shaped seat directly below the two saw blades.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1) The saw blade drive shaft is supported by a needle bearing, which has a large support area, high bearing load, small installation size, good stability of the saw blade drive system, no swing of the saw blade during cutting, and high cutting accuracy.

[0018] 2) The double saw blades are fixed on one side and can be quickly disassembled and installed.

[0019] 3) Using high-precision diamond saw blades, by replacing the intermediate positioning sleeve with the same size as the sample after cutting, standard-sized samples can be produced at one time, with high parallelism and good flatness.

[0020] 4) The sample carrier used to place the sample moves along the linear slide rail, which has good parallelism, high precision, no vibration and no offset.

[0021] 5) The top surface of the slide rail bracket is higher than the horizontal plane of the water collection tank. The sample loading platform and the slide rail protective cover are both designed in an inverted U shape, which can effectively protect the linear slide rail. When cutting and preparing samples, waste water and waste residue slide along the protective cover into the water collection tank below the linear slide rail, ensuring that the linear slide rail will not be soaked by water and corroded by waste residue, avoiding corrosion of the cutting machine track caused by long-term use, ensuring the accuracy of the cutting machine track, and extending the service life of the cutting machine.

[0022] 6) A multi-sample fixture with a V-shaped seat as the main body can clamp multiple samples at the same time. The V-shaped seat has strong adaptability and can fix samples of conventional sizes, which greatly improves the sample preparation efficiency of refractory materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the double saw blade cutting machine described in the utility model.

[0024] Figure 2 It is a structural schematic diagram of the multi-sample fixture of the utility model.

[0025] Markings in the figure: 1-motor 2-frame 3-drive belt 4-saw blade drive shaft 5-locking nut 6-needle bearing 1 7-bearing seat 8-needle bearing 2 9-inner clamping baffle 10-middle positioning sleeve 11-outer clamping baffle 12-saw blade 13-saw blade protective cover 14-spray water pipe 15-water collection tank 16-track bracket 17-linear slide 18-slide table 19-slide rail protective cover 20-sample loading platform 21-V-shaped seat 22-fastening bolt 1 23-pressure plate 24-fastening bolt 2 25-limit pin DETAILED DESCRIPTION

[0026] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings:

[0027] like Figure 1 As shown, the utility model discloses a double saw blade cutting machine for preparing samples of shaped refractory products, comprising a saw blade cutting machine consisting of a saw blade 12, a saw blade transmission system, a spray device, a sample carrier and a track; the sample carrier moves along the track, a saw blade 12 is arranged above the sample carrier, the saw blade 12 is driven by the saw blade transmission system, and a spray device is arranged above the saw blade 12; the double saw blade cutting machine also includes a frame 2, a water collection tank 15 and a multi-sample clamp; the frame 2 is arranged below the sample carrier, and a track bracket is arranged on the top of the frame 2 16, the track is arranged on the track bracket 16, and a water collecting tank 15 is provided on the outside of the track bracket 16 at the top of the frame 2; the saw blade 12 adopts a diamond saw blade, and two parallel saw blades 12 are connected to the saw blade transmission system through the saw blade transmission shaft 4, and a needle bearing group is provided between the saw blade transmission shaft 4 and the bearing seat 7; the track adopts a linear slide rail 17; the multi-sample fixture is provided with a V-shaped seat 21 and a pressure plate 23, the sample is placed in the V-shaped groove at the top of the V-shaped seat 21, and the top of the sample is fixed by the pressure plate 23.

[0028] Furthermore, the saw blade transmission system consists of a motor 1 and a transmission belt 3. The motor 1 is installed in the frame 2. One end of the transmission belt 3 is installed on the output shaft of the motor 1, and the other end is installed on the saw blade transmission shaft 4. A transmission belt protective cover is provided on the outside of the transmission belt 3.

[0029] Furthermore, the needle bearing group consists of a needle bearing 1 6 and a needle bearing 2 8; the saw blade drive shaft 4 is provided with a needle bearing 1 6 at the end close to the transmission belt 3, and a needle bearing 2 8 is provided at the end close to the saw blade 12; the bearing seat 7 is installed on the frame 2 through a bracket; the bearing seat 7 is provided with shaft end baffles at the outer ends of the needle bearing 1 6 and the needle bearing 2 8, respectively, and locked by a locking nut 5.

[0030] Furthermore, the saw blade drive shaft 4 is a stepped shaft, and the shaft section on which the two saw blades 12 are installed is provided with an inner clamping baffle 9, saw blade one, an intermediate positioning sleeve 10, saw blade two, an outer clamping baffle 11 and a shaft end locking nut from the inside to the outside; the width of the intermediate positioning sleeve 10 is the same as the height of the standard specimen.

[0031] Furthermore, a saw blade guard 13 is provided on the periphery of the saw blade 12, and the saw blade guard 13 is fixedly connected to the bearing seat 7; a through hole is provided on the top of the saw blade guard 13; the spraying device is a spray water pipe 14, one end of the spray water pipe 14 is connected to the water tank through a water pump, and the other end of the spray water pipe 14 passes vertically downward through the through hole on the top of the saw blade guard 13.

[0032] Furthermore, the sample loading platform 20 is a hollow structure with an inverted U-shaped cross-section and open at both ends. The bottom is slidably connected to the linear slide rail 17 through a slide 18, and the two side edges extend to the lower part of the corresponding side linear slide rail 17 respectively; a slide rail protection cover 19 is provided above the linear slide rail 17, and the slide rail protection cover 19 is arranged along the entire length of the linear slide rail 17. The slide rail protection cover 19 is an inverted U-shaped structure that cooperates with the sample loading platform 20. The two ends of the slide rail protection cover 19 pass through the interior of the sample loading platform 20, and the two ends are respectively connected to the bottom of the water collection tank 15 through end supports.

[0033] Further, such as Figure 2 As shown, the multi-sample fixture consists of a positioning base, a V-shaped seat 21 and a pressure plate 23; the positioning base is arranged on the top of the sample loading platform 20, and a positioning groove is set on the positioning base. The V-shaped seat 21 is arranged in the positioning groove and is fixed by a fastening bolt 22; a plurality of V-shaped grooves are set on the V-shaped seat 21, and the length direction of the V-shaped groove is perpendicular to the linear slide 17. The V-shaped seat 21 and the pressure plate 23 are fixedly connected by a fastening bolt 24 and a limit pin 25; a cutting groove is correspondingly set directly below the two saw blades 12 on the V-shaped seat 21.

[0034] The dual-saw blade cutting machine for preparing shaped refractory product samples described in the present invention is a wet cutting machine capable of precise cutting and producing multiple samples in a single straight-line cut. A frame 2 serves as the main support frame, and a motor 1 is mounted within the frame 2. The motor 1 is connected to a saw blade drive shaft 4 via a transmission belt 3. The lower end of the transmission belt 3 is connected to the output shaft of the motor 1, and the upper end of the transmission belt 3 is connected to the saw blade drive shaft 4. The saw blade drive shaft 4 is a stepped shaft supported by two sets of needle roller bearings between the saw blade drive shaft 4 and the bearing seat 7. One end of the saw blade drive shaft 4 is a cantilever structure, and two parallel diamond saw blades are mounted in the cantilever section.

[0035] The shaft section where the saw blade 12 is installed is provided with an inner clamping baffle 9, saw blade one, an intermediate positioning sleeve 10, saw blade two and an outer clamping baffle 11 in sequence from the inside to the outside; the side of the inner clamping baffle 9 away from the saw blade one is pressed against the corresponding end face of the stepped shaft to achieve positioning; the thickness of the intermediate positioning sleeve 10 is the same as the height of the standard sample, and the two sides of the sample can be processed after one cutting. The outer side of the outer clamping baffle 11 is locked by the shaft end locking nut.

[0036] A water spray pipe 14 is installed above the saw blade 12, extending vertically downward through the blade guard 13. This pipe is used to spray water to cool the blade while cutting the specimen. The blade guard 13 is fixedly connected to the bearing housing 7. The sprayed water is collected in a sump 15, which has a sedimentation function. Wastewater generated during sample preparation is then settled and filtered within the sump before being discharged.

[0037] The top surface of the frame 2 is an operating table, which is provided with a water collecting trough 15 and a track bracket 16. The water collecting trough 15 is provided on the periphery of the track bracket 16. A linear slide 17 is installed on the track bracket 16, and a slide 18 is installed on the linear slide 17. The slide 18 is fixed to the sample loading platform 20. The sample loading platform 20 is tightly fitted and fixed to the slide 18. When the slide 18 moves along the linear slide 17, the sample loading platform 20 will not be offset. The hollow part of the sample loading platform 20 is penetrated longitudinally by a slide rail protective cover 19. The slide rail protective cover 19 is fixed above the linear slide 17 through the end support. When cutting the sample, the sample loading platform 20 moves along the linear slide 17 with the slide 18. The slide rail protective cover 19 is fixed and protects the linear slide 17 below. The wastewater and waste materials generated during cutting will not contact the linear slide 17.

[0038] A multi-specimen fixture is fixed to the top of the sample carrier 20. The fixture has cutting slots corresponding to the two saw blades 12. As the sample carrier 20 slides with the slide 18, the saw blades 12 pass through the corresponding cutting slots, cutting the sample. A positioning base is set on the top of the sample carrier 20. The positioning base has a positioning slot. A V-shaped seat 21 is fixed in the positioning slot of the positioning base via a fastening bolt 22. The sample to be cut is placed in the V-shaped slot of the V-shaped seat 21. A pressure plate 23 is pressed against the sample. A limit pin 25 is used to position the pressure plate 23 and the V-shaped seat 21, limiting its horizontal freedom. The pressure plate 23 and the V-shaped seat 21 are then fixed and compressed by a fastening bolt 24.

[0039] Preferably, the depth of the V-groove is less than 36 mm, which is compatible with the diameters of two commonly used standard cylindrical specimens (36 mm and 50 mm, respectively).

[0040] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double saw blade cutting machine for preparing shaped refractory product samples, comprising a saw blade, a saw blade transmission system, a spray device, a sample carrier, and a track; the sample carrier moves along the track, a saw blade is provided above the sample carrier, the saw blade is driven by the saw blade transmission system, and a spray device is provided above the saw blade; characterized in that: The double-saw blade cutting machine also includes a frame, a water collection tank and a multi-sample clamp; the frame is arranged below the sample loading platform, a track bracket is arranged on the top of the frame, the track is arranged on the track bracket, and a water collection tank is arranged on the outside of the track bracket on the top of the frame; the saw blade adopts a diamond saw blade, and two parallel saw blades are connected to the saw blade transmission system through a saw blade drive shaft, and a needle bearing group is arranged between the saw blade drive shaft and the bearing seat; the track adopts a linear slide rail; the multi-sample clamp is provided with a V-shaped seat and a pressure plate, the sample is placed in the V-shaped groove on the top of the V-shaped seat, and the top of the sample is fixed by the pressure plate.

2. A double saw blade cutting machine for preparing shaped refractory product samples according to claim 1, characterized in that: The saw blade transmission system consists of a motor and a transmission belt. The motor is installed in the frame. One end of the transmission belt is installed on the output shaft of the motor, and the other end is installed on the saw blade transmission shaft. A transmission belt protective cover is provided on the outside of the transmission belt.

3. A double saw blade cutting machine for preparing shaped refractory product samples according to claim 1, characterized in that: The needle roller bearing group consists of needle roller bearing 1 and needle roller bearing 2; the saw blade drive shaft is provided with needle roller bearing 1 at the end close to the transmission belt, and is provided with needle roller bearing 2 at the end close to the saw blade; the bearing seat is installed on the frame through a bracket; the bearing seat is provided with shaft end baffles at the outer ends of needle roller bearing 1 and needle roller bearing 2, respectively, and is locked by a locking nut.

4. A double saw blade cutting machine for preparing shaped refractory product samples according to claim 1, characterized in that: The saw blade drive shaft is a stepped shaft. The shaft section on which the two saw blades are installed is provided with an inner clamping baffle, saw blade one, an intermediate positioning sleeve, saw blade two, an outer clamping baffle and a shaft end locking nut from the inside to the outside; the width of the intermediate positioning sleeve is the same as the height of the standard specimen.

5. A double saw blade cutting machine for preparing shaped refractory product samples according to claim 1, characterized in that: A saw blade guard is provided on the periphery of the saw blade, and the saw blade guard is fixedly connected to the bearing seat; a through hole is provided on the top of the saw blade guard; the spray device is a spray water pipe, one end of the spray water pipe is connected to the water tank through a water pump, and the other end of the spray water pipe passes vertically downward through the through hole on the top of the saw blade guard.

6. A double saw blade cutting machine for preparing shaped refractory product samples according to claim 1, characterized in that: The sample loading platform is a hollow structure with an inverted U-shaped cross-section and open at both ends. The bottom is slidably connected to the linear slide rail through a slide, and the two side edges extend to the lower part of the corresponding linear slide rail. A slide rail protection cover is provided above the linear slide rail, and the slide rail protection cover is arranged along the entire length of the linear slide rail. The slide rail protection cover is an inverted U-shaped structure that cooperates with the sample loading platform. The two ends of the slide rail protection cover pass through the interior of the sample loading platform, and the two ends are connected to the bottom of the water collection tank through end supports.

7. A double saw blade cutting machine for preparing shaped refractory product samples according to claim 1, characterized in that: The multi-sample fixture consists of a positioning base, a V-shaped seat and a pressure plate; the positioning base is arranged on the top of the sample loading platform, the positioning base is provided with a positioning groove, the V-shaped seat is arranged in the positioning groove and is fixed by a fastening bolt; the V-shaped seat is provided with multiple V-shaped grooves, the length direction of the V-shaped grooves is perpendicular to the linear slide rail, the V-shaped seat and the pressure plate are fixedly connected by a fastening bolt and a limit pin; the V-shaped seat is provided with a cutting groove corresponding to the bottom of the two saw blades.

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