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

Abstract

The invention 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 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 and is small in radial size, high in load, stable in movement and long in service cycle, and a cutting machine rail adopts a linear sliding rail and is high in precision, not prone to corrosion and convenient to maintain; 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 invention 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] In order to accurately measure and evaluate the performance and quality of refractory products, it is necessary to measure the compressive strength, load softening temperature, thermal expansion coefficient and other properties. When testing shaped refractory materials, it is necessary to drill and cut the finished refractory products accurately. The size of the refractory samples used for testing is required to be very precise, so the verticality, parallelism and flatness of the samples need to be strictly controlled.

[0003] The existing brick cutting machines on the market are usually single-blade brick cutting machines. When preparing refractory product samples, it is necessary to fix one end first and then cut the other end, and then change the direction to cut the other end. When reversing the cutting direction and re-fixing the sample, it is very easy to cause positioning deviation. Since the standard refractory material test method has very high requirements for the sample size accuracy, it is difficult to process samples that meet the standard requirements using the above method.

[0004] In addition, the linear guide rails of common wet-cutting brick cutting machines for fixing samples are mostly roller-type, which are easily soaked by water, corroded and worn by broken bricks and debris during operation. Therefore, after a period of use, the linear motion accuracy of the sample stage deteriorates, making it difficult for the surface flatness of the cut sample to meet the standard requirements.

[0005] The saw blade drive shaft of the existing brick cutting machine mostly adopts 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 the 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 present invention provides a double saw blade cutting machine for preparing samples of shaped refractory products, 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, low cutting efficiency, etc. The saw blade transmission 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 adopted to fix multiple samples at one time and at multiple angles, which is simple to operate and greatly improves the sample preparation efficiency.

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

[0009] A double saw blade cutting machine for preparing samples of shaped refractory products, including a saw blade cutting machine composed of 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 arranged above the sample carrier, the saw blade is driven by the saw blade transmission system, and a spray device is arranged above the saw blade; the double saw blade cutting machine also includes a frame, a water collecting trough and a multi-sample clamp; the frame is arranged below the sample carrier, a track bracket is arranged on the top of the frame, the track is arranged on the track bracket, and a water collecting trough 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 transmission shaft, and a needle bearing group is arranged between the saw blade transmission 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.

[0010] Furthermore, 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.

[0011] Furthermore, the needle bearing group consists of needle bearing one and needle bearing two; the saw blade drive shaft is provided with needle bearing one at the end close to the transmission belt, and needle bearing two is provided 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 bearing one and needle bearing two, respectively, and locked by a locking nut.

[0012] Furthermore, the saw blade drive shaft is a stepped shaft, and 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.

[0013] Furthermore, 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 vertically downwards through the through hole on the top of the saw blade guard.

[0014] Furthermore, the hollow sample platform is a hollow structure with an inverted U-shaped cross-section and openings at both ends. The bottom is slidably connected to the linear slide rail through a slide, and the two sides extend to the lower part of the corresponding linear slide rail respectively. 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 matches the hollow sample platform. Both ends of the slide rail protection cover pass through the interior of the hollow sample platform, and the two ends are connected to the bottom of the sump through end supports respectively.

[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 hollow sample loading platform, a positioning groove is arranged 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 arranged on the V-shaped seat, the length direction of the V-shaped grooves 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 arranged correspondingly directly below the two saw blades on the V-shaped seat.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

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

[0020] 4) A hollow sample loading platform for placing samples is used to move along a 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 hollow sample loading platform and the slide rail protection 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 protection cover into the water collection tank under 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 present invention.

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

[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-hollow sample loading table 21-V-shaped seat 22-fastening bolt 1 23-pressure plate 24-fastening bolt 2 25-limit pin DETAILED DESCRIPTION

[0026] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings:

[0027] like Figure 1 As shown, the double saw blade cutting machine for preparing shaped refractory product samples of the present invention comprises a saw blade cutting machine composed 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 comprises a frame 2, a water collecting tank 15 and a multi-sample fixture; the frame 2 is arranged below the sample carrier, and a track bracket 1 is arranged on the top of the frame 2 6. The track is arranged on the track bracket 16, and a water collecting trough 15 is arranged on the outer side 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 a saw blade transmission shaft 4, and a needle bearing group is arranged 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 on 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 outer side 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 one 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 sample.

[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 spray 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 vertically downwards through the through hole on the top of the saw blade guard 13.

[0032] Furthermore, the hollow sample platform 20 is a hollow structure with an inverted U-shaped cross-section and openings at both ends. The bottom is slidably connected to the linear slide rail 17 through a slide 18, and the two sides 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 matches the hollow sample platform 20. Both ends of the slide rail protection cover 19 pass through the interior of the hollow sample platform 20, and the two ends are connected to the bottom of the sump 15 through end supports respectively.

[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 hollow sample loading platform 20, and a positioning groove is arranged on the positioning base, and the V-shaped seat 21 is arranged in the positioning groove and fixed by a fastening bolt 22; a plurality of V-shaped grooves are arranged on the V-shaped seat 21, and the length direction of the V-shaped groove is perpendicular to the linear slide rail 17, and 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 arranged on the V-shaped seat 21 just below the two saw blades 12.

[0034] The double saw blade cutting machine for preparing shaped refractory product samples described in the present invention is a wet cutting machine that can perform precision cutting and obtain multiple samples after a straight line cutting. The frame 2 serves as the main support frame, and the motor 1 is installed in the frame 2. The motor 1 is connected to the saw blade transmission shaft 4 through the 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 transmission shaft 4. The saw blade transmission shaft 4 is a stepped shaft, and the saw blade transmission shaft 4 and the bearing seat 7 are supported by two sets of needle bearings. One end of the saw blade transmission shaft 4 is a cantilever structure, and two parallel diamond saw blades are installed 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, and the outer side of the outer clamping baffle 11 is locked by the shaft end locking nut.

[0036] A spray water pipe 14 is provided above the saw blade 12, and the spray water pipe 14 vertically passes through the saw blade guard 13 downward, and is used to spray water to cool down when cutting the sample. The saw blade guard 13 is fixedly connected to the bearing seat 7. The sprayed water is collected by the water collection tank 15, which has a sedimentation function. The wastewater generated by the sample preparation is settled and filtered in the water collection tank 15 before being discharged.

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

[0038] A multi-sample fixture is fixed on the top of the hollow sample stage 20. The multi-sample fixture has cutting grooves corresponding to the two saw blades 12. When the hollow sample stage 20 slides with the slide 18, the saw blades 12 pass through the corresponding cutting grooves to cut the sample. A positioning base is set on the top of the hollow sample stage 20. A positioning groove is provided on the positioning base. The V-shaped seat 21 is fixed in the positioning groove of the positioning base by a fastening bolt 22. The sample to be cut is placed in the V-shaped groove of the V-shaped seat 21. The pressure plate 23 is pressed tightly on the sample. The pressure plate 23 and the V-shaped seat 21 are positioned and limited in the horizontal direction by a limit pin 25, and then fixed and pressed 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 description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by 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 cutting machine composed of 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 arranged above the sample carrier, the saw blade is driven by the saw blade transmission system, and a spray device is arranged 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 fixture; 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 transmission shaft, and a needle bearing group is arranged between the saw blade transmission shaft and the bearing seat; the track adopts a linear slide rail; the multi-sample fixture 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 arranged on the outer side 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 bearing group consists of needle bearing one and needle bearing two; the saw blade transmission shaft is provided with needle bearing one at the end close to the transmission belt, and needle bearing two is provided 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 bearing one and needle bearing two, respectively, and 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, and 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. The double saw blade cutting machine for preparing shaped refractory product samples according to claim 1, characterized in that: A saw blade guard is arranged on the periphery of the saw blade, and the saw blade guard is fixedly connected to the bearing seat; a through hole is arranged on the top of the saw blade guard; the spray device is a spray water pipe, one end of which 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 hollow sample loading platform is a hollow structure with an inverted U-shaped cross-section and openings at both ends. The bottom is slidably connected to the linear slide rail through a slide, and the two sides extend to the lower part of the corresponding linear slide rail respectively. 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 matches the hollow sample loading platform. The two ends of the slide rail protection cover pass through the interior of the hollow sample loading platform, and the two ends are connected to the bottom of the water collecting tank through end supports respectively.

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 hollow sample loading platform, a positioning groove is arranged 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 arranged on the V-shaped seat, the length direction of the V-shaped grooves 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 arranged correspondingly directly below the two saw blades on the V-shaped seat.

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