A band sawing machine capable of cooling a cutting device

Abstract

The present invention discloses a band sawing machine capable of cooling a cutting device, which relates to the field of band sawing machines and includes a base, a support table and a power box. A saw blade is installed at the middle position of the support table. A driving mechanism is installed on the side of the power box. The output end of the driving mechanism is connected to a transmission mechanism and a heat dissipation mechanism. The output end of the transmission mechanism is connected to a sliding plate. The bottom end of the sliding plate is connected to an upper clamping plate that is snap-connected to the saw blade. A lower clamping plate is installed on the inner wall of the base below the support table. In the present invention, the collecting fan and the heat dissipation fan connected to the output end of the driving motor rotate, driving the air flow inside the power box, enabling the air to enter through the groove on the outer side of the protective shell and enter the power box through the air permeable holes. The air flow dissipates heat from the driving motor. After the air flow enters, under the drive of the collecting fan, the air is converged and flows along the flow guiding plate, and finally the air flow is discharged through the heat dissipation fan, thereby cooling the inside of the power box.

Description

Technical Field

[0001] The present invention relates to the field of band sawing machines, and specifically to a band sawing machine capable of cooling cutting equipment. Background Art

[0002] A band sawing machine is a mechanical device used for cutting materials such as metals, woods, plastics, etc. Its working principle is to perform cutting through a continuous saw band. Band sawing machines usually have relatively high cutting accuracy and large cutting capacity, and are widely used in fields such as machining and metal processing. During cutting, the band sawing machine usually has a vertical saw structure, and the saw blade is driven by a motor to move up and down to cut the material.

[0003] The prior art, such as a vertical band sawing machine with a cooling function disclosed in a Chinese patent with the patent number CN211192303U, includes a base, a workbench, and a cutting device. The workbench is fixedly arranged on the upper surface of the base. The cutting device includes a frame body, a plurality of pulleys, and a saw band. Each pulley is rotatably arranged on the frame body, and the saw band is arranged on each pulley. The saw band is provided with a vertical cutting section. The frame body is slidably arranged on the base in the horizontal direction. An upper support and a lower support are respectively arranged on the upper and lower sides of the frame body where the cutting section is located. The upper support and the lower support are provided with a vertically penetrating guide groove, and the shape and size of the guide groove are adapted to the outer circumference of the cutting section. The cutting section is slidably arranged in the guide groove. A cooling assembly is arranged on the frame body. The cooling assembly includes a water tank, a water pump, an inflow pipe, and a return pipe. A cooling cavity is arranged in the upper support. The water tank, the water pump, the inflow pipe, the cooling cavity, and the return pipe are sequentially connected in a loop.

[0004] Although the prior art adopts a water cooling method for cooling, the water cooling structure is relatively complex, and additional driving is required using structures such as a water tank and a water pump. Moreover, water pipes need to be closely attached to the outside of the cutting assembly, resulting in a complex structure and inconvenient use. During the cutting process, a processing table is usually used to support the material. Also, during the cutting process, some impurities will remain on the outside of the saw blade. During subsequent processing, the impurities will be blocked between the processing table and the saw blade. When the saw blade moves up and down, the stuck impurities will cause damage to the saw blade. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a band sawing machine capable of cooling cutting equipment, so as to solve the technical problems of complex heat dissipation structure and easy wear of the saw blade due to impurities stuck during the cutting process.

[0006] To achieve the above object, the present invention provides the following technical solution: A band sawing machine capable of cooling a cutting device, including a base, a cutting table, and a power box. A saw blade is installed at the middle position of the cutting table. A driving mechanism is installed on the side of the power box. The output end of the driving mechanism is connected to a transmission mechanism and a heat dissipation mechanism. The output end of the transmission mechanism is connected to a sliding plate. The bottom end of the sliding plate is connected to an upper clamping plate that is snap-fitted with the saw blade. The inner wall of the base is provided with a lower clamping plate below the cutting table. The lower clamping plate is snap-fitted with the bottom end of the saw blade. The base is further provided with a movable plate below the lower clamping plate. Cleaning mechanisms are installed on both sides of the saw blade on the cutting table. The cleaning mechanisms are in contact with the outer wall of the saw blade and are rotatably connected to the cutting table. A moving plate is further connected inside the cleaning mechanism. A return spring rod is installed inside the moving plate. The moving plate is movably connected to the cleaning mechanism through the return spring rod. And the moving plate is in a natural state and is located below the cleaning mechanism. The moving plate is in contact with the outer wall of the saw blade. As the saw blade moves up and down, the moving plate also moves synchronously.

[0007] By adopting the above technical solution, it is possible to conveniently cut materials. And during the cutting process, the saw blade is protected by the moving plate, and the inside of the power box is heat-dissipated and protected by the heat dissipation mechanism.

[0008] The present invention is further configured such that the top end of the base is connected to a support table. The power box is located above the support table. The support table is further connected with a fixed clamp on the side of the power box. The fixed clamp is sleeved on the outside of the sliding plate. And a height adjuster is installed on the side of the fixed clamp. The height adjuster is threadedly connected to the fixed clamp.

[0009] Preferably, it is possible to conveniently adjust the height of the fixed clamp, thereby facilitating the clamping of different saw blades.

[0010] The present invention is further configured such that the top end of the cutting table is connected to a screw propeller and a positioning plate. A threaded rod is installed inside the screw propeller. When the screw propeller rotates, it drives the positioning plate to slide on the cutting table.

[0011] Preferably, it is possible to adjust the position of the positioning plate, thereby facilitating the processing of materials of different specifications.

[0012] The present invention is further configured such that the inner wall of the power box is provided with an upper driving gear and a lower driving gear. A first driven wheel is installed inside the upper driving gear. A second driven wheel is installed inside the lower driving gear. A transmission rod is installed between the upper driving gear and the lower driving gear. The transmission rod is fixedly connected to the side of the sliding plate. And the angles of the upper driving gear and the lower driving gear are staggered.

[0013] Preferably, it is possible to conveniently drive the saw blade to move up and down, thereby cutting materials.

[0014] The present invention is further configured such that a driving motor is installed inside the driving mechanism, and the output end of the driving motor is connected with a first driving wheel and a second driving wheel. The first driving wheel is in transmission connection with a first driven wheel through a conveyor belt, and the second driving wheel is also in transmission connection with a second driven wheel through a conveyor belt.

[0015] Preferably, it can conveniently drive the upper driving tooth and the lower driving tooth to rotate.

[0016] The present invention is further configured such that the output end of the driving mechanism is connected with a collection fan and a heat dissipation fan. The collection fan is fixed on the outer wall of the second driving wheel and extends to the outside of the second driving wheel. The single piece shape of the collection fan is a distorted trapezoid. A flow guide plate is installed outside the collection fan. The annular inner wall of the flow guide plate is aligned with the outside of the heat dissipation fan. A heat dissipation net matching the heat dissipation fan is provided on the outer wall of the power box. A protective shell is also installed outside the driving mechanism. The end of the protective shell is a mesh structure, and air permeation holes are provided on the outer wall of the power box inside the protective shell.

[0017] Preferably, it can allow air flow to enter the inside of the power box, thereby dissipating heat from the inside of the power box.

[0018] The present invention is further configured such that a scraping plate is installed inside the cleaning mechanism, and air injection holes are provided below the scraping plate in the cleaning mechanism. Air injection holes are also provided on the side of the cleaning mechanism where the moving plate is located.

[0019] Preferably, it can facilitate the air flow to enter the inside of the power box.

[0020] The present invention is further configured such that first insertion plates are provided on both sides of the lower clamping plate, and the lower clamping plate is slidably connected with the movable plate through the first insertion plates.

[0021] Preferably, the lower clamping plate can be fixed and limited through the first insertion plates.

[0022] The present invention is further configured such that a fixing plate is further installed outside the movable plate. A positioning spring rod and a second insertion plate are connected between the movable plate and the fixing plate. A slot matching the second insertion plate is provided on the outer wall of the fixing plate. A one-way valve is installed at the bottom end of the fixing plate. A guide air pipe is connected to the side of the fixing plate and extends to the inside of the cutting table and is aligned with the outer wall of the cleaning mechanism. The movable plate moves up and down driven by the lower clamping plate, sucks outside air from the one-way valve into the air cavity formed by the movable plate, the fixing plate and the second insertion plate, and sends the air flow into the guide air pipe through extrusion. Finally, the air flow enters the cleaning mechanism.

[0023] Preferably, air can be sent into the cleaning mechanism through an air duct to clean the impurities attached to the outside of the cleaning mechanism and dissipate heat from the moving plate.

[0024] In summary, the present invention mainly has the following beneficial effects:

[0025] 1. Through the power box and drive mechanism provided in the present invention, during use, the collection fan and the heat dissipation fan connected to the output end of the drive motor rotate, driving the air flow inside the power box, enabling the air to enter through the grooves on the outside of the protective shell and through the ventilation holes into the power box. The air flow dissipates heat from the drive motor. After the air flow enters, it is converged by the collection fan and flows along the guide plate, and finally the air flow is discharged through the heat dissipation fan, thereby cooling the inside of the power box.

[0026] 2. Through the cleaning mechanism, the lower clamping plate and the movable plate provided in the present invention, after cutting the material, the torsion spring rod returns to its original position, driving the cleaning mechanism to return to its original position to clean the saw blade, avoiding the residue of impurities on the surface of the saw blade and affecting subsequent cutting. During the cutting process of the saw blade, the movable plate moves up and down inside the fixed plate, squeezing the air flow, enabling the air flow to enter the cleaning mechanism through the air duct to clean the inside of the cleaning mechanism. During the cutting process of the saw blade, the cleaning mechanism is attached to the saw blade through the movable plate on the side wall. During cutting, the movable plate moves up and down synchronously with the saw blade, thereby protecting the saw blade, reducing the wear and heat generation of the saw blade, and improving the heat dissipation effect of the saw blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the band sawing machine of the present invention;

[0028] Figure 2 is a schematic internal structure diagram of the power box of the present invention;

[0029] Figure 3 is a schematic structural diagram of the drive mechanism of the present invention;

[0030] Figure 4 is a schematic installation structure diagram of the drive mechanism of the present invention;

[0031] Figure 5 is a schematic structural diagram of the collection fan and the heat dissipation fan of the present invention;

[0032] Figure 6 is a schematic structural diagram of the engagement between the sliding plate and the drive tooth of the present invention;

[0033] Figure 7 is a schematic installation structure diagram of the lower clamping plate of the present invention;

[0034] Figure 8Schematic diagram of the linkage structure between the cleaning mechanism and the lower clamping plate of the present invention;

[0035] Figure 9 Schematic diagram of the structure between the lower clamping plate and the movable plate of the present invention;

[0036] Figure 10 Schematic diagram of the internal structure of the cleaning mechanism of the present invention;

[0037] Figure 11 Schematic diagram of the structure of the movable scraper of the present invention.

[0038] Explanation of reference numerals:

[0039] 1. Base; 101. Support platform; 2. Cutting table; 201. Screw propeller; 202. Positioning plate; 3. Power box; 301. Heat dissipation net; 302. Support frame; 303. Upper drive gear; 3031. First driven wheel; 304. Lower drive gear; 3401. Second driven wheel; 305. Transmission rod; 306. Protective shell; 307. Ventilation hole; 4. Fixed clamp; 401. Height adjuster; 5. Saw blade; 6. Driving mechanism; 601. Driving motor; 602. First transmission wheel; 603. Second transmission wheel; 604. Collection fan; 6041. Deflector; 605. Heat dissipation fan; 7. Cleaning mechanism; 701. Scraper; 702. Torsion spring rod; 8. Slide plate; 801. Upper clamping plate; 9. Lower clamping plate; 901. First insertion plate; 10. Movable plate; 1001. Fixed plate; 1002. Positioning spring rod; 1003. Second insertion plate; 1004. Slot; 11. Air duct; 12. Moving plate; 1201. Return spring rod. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0041] Next, the embodiments of the present invention will be described according to the overall structure of the present invention.

[0042] The first embodiment:

[0043] Please refer to Figures 1 to 6, A band sawing machine capable of cooling a cutting device, including a base 1, a cutting table 2, and a power box 3. A saw blade 5 is installed at the middle position of the cutting table 2. A driving mechanism 6 is installed on the side of the power box 3. A support frame 302 is installed on the inner side of the power box 3. A control system and a power supply system are installed on the support frame 302. An upper driving gear 303 and a lower driving gear 304 are installed on the inner wall of the power box 3. A first driven wheel 3031 is installed inside the upper driving gear 303. A second driven wheel 3041 is installed inside the lower driving gear 304. A transmission rod 305 is installed between the upper driving gear 303 and the lower driving gear 304. The transmission rod 305 is fixedly connected to the side of a slide plate 8. And the angles of the upper driving gear 303 and the lower driving gear 304 are staggeredly arranged. A driving motor 601 is installed inside the driving mechanism 6. The output end of the driving motor 601 is connected with a first transmission wheel 602 and a second transmission wheel 603. The first transmission wheel 602 is in transmission connection with the first driven wheel 3031 through a conveyor belt. The second transmission wheel 603 is also in transmission connection with the second driven wheel 3041 through a conveyor belt. It can drive the transmission rod 305 to move up and down through the upper driving gear 303 and the lower driving gear 304, thereby driving the slide plate 8 to move up and down. The output end of the driving mechanism 6 is connected with a collecting fan 604 and a heat dissipation fan 605. The collecting fan 604 is fixed on the outer wall of the second transmission wheel 603. And the collecting fan 604 extends to the outside of the second transmission wheel 603. The single piece shape of the collecting fan 604 is a twisted trapezoid. A guide plate 6041 is installed outside the collecting fan 604. The annular inner wall of the guide plate 6041 is aligned with the outside of the heat dissipation fan 605. A heat dissipation net 301 matching the heat dissipation fan 605 is opened on the outer wall of the power box 3. A protective shell 306 is also installed outside the driving mechanism 6. The end of the protective shell 306 is a mesh structure. And ventilation holes 307 are opened on the outer wall of the power box 3 inside the protective shell 306, which can facilitate heat dissipation inside the power box and improve the heat dissipation effect.

[0044] Please refer to Figure 7 and Figure 8 , The bottom end of the slide plate 8 is connected with an upper clamping plate 801 that is snap-fitted with the saw blade 5. A lower clamping plate 9 is installed on the inner wall of the base 1 below the cutting table 2. The lower clamping plate 9 is snap-fitted with the bottom end of the saw blade 5. A movable plate 10 is also installed below the base 1 at the lower clamping plate 9, which can facilitate the limitation of the saw blade 5.

[0045] Please refer to Figures 7 to 11, cleaning mechanisms 7 are installed on both sides of the cutting table 2 where the saw blade 5 is located. The cleaning mechanisms 7 are in contact with the outer wall of the saw blade 5, facilitating the cleaning of the saw blade 5 during cutting and preventing impurities from clogging between the saw blade 5 and the cutting table 2. The cleaning mechanisms 7 are rotatably connected to the cutting table 2 through torsion spring rods 702. A scraping plate 701 is installed inside the cleaning mechanisms 7, and air injection holes are provided below the scraping plate 701 in the cleaning mechanisms 7. Air injection holes are also provided on the side of the cleaning mechanisms 7 where the moving plate 12 is located. A fixing plate 1001 is further installed on the outer side of the movable plate 10. A positioning spring rod 1002 and a second plug 1003 are connected between the movable plate 10 and the fixing plate 1001. A slot 1004 matching the second plug 1003 is provided on the outer wall of the fixing plate 1001. A one-way valve is installed at the bottom end of the fixing plate 1001. A gas guide pipe 11 is connected to the side of the fixing plate 1001 and extends into the interior of the cutting table 2 to align with the outer wall of the cleaning mechanism 7. The movable plate 10 moves up and down driven by the lower clamping plate 9, sucking outside air into the air cavity formed by the movable plate 10, the fixing plate 1001, and the second plug 1003, and sending the air flow into the gas guide pipe 11 through extrusion. Finally, the air flow enters the cleaning mechanism 7 to clean the scraping plate 701 and dissipate heat from the moving plate 12. A moving plate 12 is also connected to the inner side of the cleaning mechanism 7. A return spring rod 1201 is installed inside the moving plate 12. The moving plate 12 is movably connected to the cleaning mechanism 7 through the return spring rod 1201, and the moving plate 12 is in its natural state below the cleaning mechanism 7 and in contact with the outer wall of the saw blade 5. As the saw blade 5 moves up and down, the moving plate 12 moves synchronously to reduce wear on the saw blade 5.

[0046] In the above embodiment, specifically, please refer to again Figure 1 and Figure 2 , a support platform 101 is connected to the top end of the base 1. The power box 3 is located above the support platform 101. A fixing clamp 4 is further connected to the side of the support platform 101 where the power box 3 is located. The fixing clamp 4 is sleeved on the outer side of the sliding plate 8, and a height adjuster 401 is installed on the side of the fixing clamp 4. The height adjuster 401 is threadedly connected to the fixing clamp 4, facilitating the clamping of different sliding plates 8.

[0047] In the above embodiment, specifically, please refer to again Figure 1 and Figure 2 , a screw propeller 201 and a positioning plate 202 are connected to the top end of the cutting table 2. A threaded rod is installed inside the screw propeller 201. When the screw propeller 201 rotates, it drives the positioning plate 202 to slide on the cutting table 2, facilitating the limitation of the material to be cut.

[0048] In the above embodiment, specifically, please refer to again Figure 8, first insertion plates 901 are provided on both sides of the lower clamping plate 9, and the lower clamping plate 9 is slidably connected to the movable plate 10 through the first insertion plates 901, which facilitates the installation and disassembly of the saw blade 5.

[0049] During use, first, the saw blade 5 needs to be installed. During the installation process, first, the lower part of the saw blade 5 is installed inside the lower clamping plate 9, and then the saw blade 5 is inserted into the cutting table 2. The lower clamping plate 9 is inserted into the groove at the top of the movable plate 10 through the first insertion plates 901 on the outside to fix the lower clamping plate 9 first. When the top of the saw blade 5 is inserted into the upper clamping plate 801, the top of the saw blade 5 is fixed by bolts, thus completing the installation of the saw blade 5. When the material needs to be cut, the position of the positioning plate 202 is adjusted by the screw propeller 201 so that the positioning plate 202 moves to a suitable position. The side of the material is fitted with the positioning plate 202, and the material is pushed to move on the cutting table 2. Before cutting, the material will first come into contact with the outside of the cleaning mechanism 7. The material will push the cleaning mechanism to tilt and fit with the slot on the cutting table 2. When it comes into contact with the saw blade 5, the driving mechanism 6 is started. The driving motor 601 in the driving mechanism 6 drives the first transmission wheel 602, the second transmission wheel 603, and each group of fans to rotate. The first transmission wheel 602 and the second transmission wheel 603 synchronously drive the upper driving teeth 303 and the lower driving teeth 304 to rotate. The upper driving teeth 303 and the lower driving teeth 304 are staggered up and down on the transmission rod 305. When the upper driving teeth 303 and the lower driving teeth 304 rotate, they will alternately push the transmission rod 305 up and down through the protruding teeth on the outside, thereby driving the transmission rod 305 to move up and down. The transmission rod 305 drives the upper clamping plate 801 below the sliding plate 8 to also move up and down, thereby pulling the saw blade 5 up and down to cut the material. Push the material continuously to cut the material until the material cutting is completed. At this time, the material is removed from the cutting table 2. Under the action of the torsion spring rod 702, the cleaning mechanism 7 is pushed back to its original position. At this time, the cleaning mechanism 7 scrapes and cleans the outer wall of the saw blade 5 through the scraper 701 on the side. Subsequently, when processing the subsequent materials, the material will again push the cleaning mechanism 7 to rotate downward into the slot in the cutting table 2. At this time, the cleaning mechanism 7 is aligned with the air duct 11. Moreover, during cutting, the saw blade 5 will drive the lower clamping plate 9 to move up and down, thereby driving the movable plate 10 to move up and down in the fixed plate 1001. The gas located between the movable plate 10, the fixed plate 1001, and the second insertion plate 1003 is squeezed, and most of the air is squeezed out of the air duct 11. And the air duct 11 is connected to the inside of the cleaning mechanism 7, so that the air flow can enter the cleaning mechanism 7 and spray out from the inside of the scraper 701 to clean the impurities attached to the scraper 701, avoiding the accumulation of impurities on the scraper 701 and improving the cleanliness of the scraper 701. And during the cutting process, the saw blade 5 moves up and down and fits with the moving plate 12. The moving plate 12 also moves up and down with the saw blade 5, thereby reducing the wear of the saw blade 5 and improving the service life of the saw blade 5.

[0050] Although embodiments of the present invention have been shown and described, the specific embodiments are only interpretations of the present invention and not limitations thereof. The specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions, and variations that do not make a creative contribution to the embodiments as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A band saw capable of cooling a cutting device, comprising a base, a cutting table and a power box, wherein a saw blade is installed in the middle of the cutting table, and characterized in that: A driving mechanism is installed on the side of the power box, the output end of the driving mechanism is connected to a transmission mechanism and a heat dissipation mechanism, the output end of the transmission mechanism is connected to a slide plate, the bottom end of the slide plate is connected to an upper clamping plate engaged with the saw blade, the inner wall of the base is located below the cutting table and a lower clamping plate is installed, the lower clamping plate is engaged with the bottom end of the saw blade, a movable plate is also installed on the base below the lower clamping plate, a cleaning mechanism is installed on both sides of the saw blade of the cutting table, the cleaning mechanism is in contact with the outer wall of the saw blade, and the cleaning mechanism is rotatably connected to the cutting table, a movable plate is also connected to the inner side of the cleaning mechanism, a return spring rod is installed inside the movable plate, the movable plate is movably connected to the cleaning mechanism through the return spring rod, and the movable plate is naturally located below the cleaning mechanism, the movable plate is in contact with the outer wall of the saw blade, and as the saw blade moves up and down, the movable plate also moves synchronously; An upper driving tooth and a lower driving tooth are installed on the inner wall of the power box, a first driven wheel is installed inside the upper driving tooth, a second driven wheel is installed inside the lower driving tooth, a transmission rod is installed between the upper driving tooth and the lower driving tooth, the transmission rod is fixedly connected to the side of the skateboard, and the angles of the upper driving tooth and the lower driving tooth are staggered; A driving motor is installed inside the driving mechanism, and an output end of the driving motor is connected to a first transmission wheel and a second transmission wheel. The first transmission wheel is connected to the first driven wheel through a transmission belt, and the second transmission wheel is also connected to the second driven wheel through a transmission belt. The output end of the driving mechanism is connected to a collecting fan and a cooling fan. The collecting fan is fixed on the outer wall of the second transmission wheel and extends to the outside of the second transmission wheel. The single-piece shape of the collecting fan is a twisted trapezoid. A guide plate is installed on the outside of the collecting fan. The annular inner wall of the guide plate is aligned with the outside of the cooling fan. The outer wall of the power box is provided with a cooling net matching the cooling fan.

2. A band saw capable of cooling a cutting device according to claim 1, characterized in that: The top of the base is connected to a support platform, the power box is located above the support platform, and the side of the support platform located at the power box is also connected to a fixing clip, the fixing clip is sleeved on the outside of the skateboard, and a height adjuster is installed on the side of the fixing clip, and the height adjuster is connected to the fixing clip by threads.

3. A band saw capable of cooling a cutting device according to claim 1, characterized in that: The top of the cutting table is connected with a screw propeller and a positioning plate, a threaded rod is installed inside the screw propeller, and when the screw propeller rotates, the positioning plate is driven to slide on the cutting table.

4. A band saw capable of cooling a cutting device according to claim 1, characterized in that: A protective shell is also installed on the outside of the driving mechanism, the end of the protective shell is a mesh structure, and the outer wall of the power box is located on the inner side of the protective shell and has ventilation holes.

5. A band saw capable of cooling a cutting device according to claim 1, characterized in that: A scraper is installed inside the cleaning mechanism, and an air injection hole is opened below the scraper, and an air injection hole is also opened on the side of the moving plate.

6. A band saw capable of cooling a cutting device according to claim 1, characterized in that: First plugging plates are provided on both sides of the lower clamping plate, and the lower clamping plate is slidably connected with the movable plate through the first plugging plates.

7. A band sawing machine capable of cooling a cutting device according to claim 1, characterized in that: A fixed plate is also installed on the outer side of the movable plate, a positioning spring rod and a second plug plate are connected between the movable plate and the fixed plate, a slot matching the second plug plate is opened on the outer wall of the fixed plate, a one-way valve is installed on the bottom end of the fixed plate, an air guide pipe is connected to the side of the fixed plate, and the air guide pipe extends to the inside of the cutting table and is aligned with the outer wall of the cleaning mechanism. The movable plate moves up and down driven by the lower clamping plate, and the outside air is sucked into the air cavity composed of the movable plate, the fixed plate and the second plug plate from the one-way valve, and the airflow is sent into the air guide pipe by extrusion, and finally the airflow enters the cleaning mechanism.

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