Decorative plate sawing machine with damage prevention function

Abstract

The invention discloses a decorative plate sawing machine with a damage prevention function, and relates to the technical field of band-sawing machine tools, the decorative plate sawing machine comprises a band-sawing machine, reinforcing ribs, a guide rail, a band saw blade, a conveyor and a material platform, the reinforcing ribs are arranged on the two sides of the band-sawing machine, a first moving module is arranged at the bottoms of the reinforcing ribs, and the first moving module is arranged on the guide rail; the first moving module is connected with the control system through a circuit, a transmission assembly and a heat dissipation assembly are arranged in the band saw machine, the band saw blade is installed on the transmission assembly, the heat dissipation assembly dissipates heat of the band saw blade, the conveyor and the material table are arranged on the two sides of a saw cutting edge of the band saw blade correspondingly, and before saw cutting, the conveyor and the material table are arranged on the two sides of the saw cutting edge of the band saw blade. The sliding block extends outwards through the spring cylinder body until the side pressing wheel makes contact with the decorative plate and abuts against the edge of the decorative plate, the side pressing wheel and the rear push plate extrude the front portion of the sawing opening, the front end of the sawing opening is prevented from cracking due to stress, the effect of protecting the decorative plate is achieved, and the effect of preventing the decorative plate from being damaged is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of band saw machine tools, in particular to a sawing machine for decorative plates with an anti-damage function. Background Art

[0002] In the processing of decorative panels, sawing is a common and important process. Traditional sawing machines often face two main problems when cutting. First, if the temperature of the saw blade is too high or the cutting method is improper, it is easy to produce excessive stress concentration. Decorative panels are usually made of thin and hard materials, which causes cracks on the surface or edges of these materials during the cutting process. This not only affects the appearance of the panels, but also reduces the quality and use value of the products. Secondly, during high-intensity working, band saws often overheat due to long-term operation. The heat of the band saw itself cannot be effectively dissipated, causing the temperature of the saw blade to continue to rise, which not only affects the cutting performance of the saw blade, but may even shorten the service life of the saw blade. In addition, high temperature will increase the friction between the material and the saw blade, thereby increasing energy consumption and tool wear during the cutting process. The heat dissipation efficiency of the band saw has always been an important issue plaguing the sawing processing industry. Summary of the invention

[0003] The object of the present invention is to provide a sawing machine for decorative plates with an anti-damage function to solve the problems raised in the prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sawing machine for decorative panels with anti-damage function, comprising a band saw machine, reinforcing ribs, guide rails, a band saw blade, a conveyor and a material table, the reinforcing ribs are arranged on both sides of the band saw machine, a first movable module is arranged at the bottom of the reinforcing ribs, the first movable module is arranged on the guide rails, the first movable module is connected to the control system through a circuit, a transmission assembly and a heat dissipation assembly are arranged inside the band saw machine, the band saw blade is installed on the transmission assembly, the heat dissipation assembly dissipates heat from the band saw blade, the conveyor and the material table are respectively arranged on both sides of the sawing edge of the band saw blade, the control system controls the first movable module to move on the guide rails, the first movable module drives the band saw machine to move, and the band saw blade realizes the cutting of the decorative panel.

[0005] Furthermore, an upper horizontal frame is provided above the material table, and a pair of second electric push rods are provided at the bottom of the upper horizontal frame, and an upper pressure plate is connected to the push rods of the pair of second electric push rods, and a pair of first electric push rods are installed on one side of the material table, and a side push plate is installed on the push rods of the pair of first electric push rods. Before cutting the decorative sheet, the operator places the decorative sheet to be cut on the material table, and the first electric push rod pushes the side push plate to move so that the edges of the decorative sheet are aligned. During the cutting process, the second electric push rod pushes the upper pressure plate to move, and the upper pressure plate is used to press the decorative sheet being cut, thereby stabilizing the decorative sheet.

[0006] Furthermore, a rear push plate is provided on the side of the material table away from the band saw machine, and the rear push plate is installed on the material table through a second movable module, and the second movable module is connected to the control system through an electric circuit. After each cutting is completed, the cut decorative sheet is moved out along with the conveyor, the first electric push rod pulls back the side push plate, and the second electric push rod pulls back the upper pressure plate, and the second movable module drives the rear push plate to move, and continues to push out a part of the decorative sheet on the material table, and the side push plate and the upper pressure plate re-fix the decorative sheet so that the band saw blade can perform another round of sawing and cutting of the decorative sheet.

[0007] Furthermore, a spring cylinder is provided on the outside of the band saw machine, and a slider is slidably installed inside the spring cylinder, and a side pressure wheel is rotatably installed on one end of the slider extending out of the spring cylinder, and an electromagnet is provided inside the spring cylinder on a side away from the side pressure wheel, and the electromagnet is connected to the control system circuit. Before the band saw machine moves, the electromagnet is in an energized state, and the electromagnet adsorbs the slider, and the slider overcomes the elastic force of the spring and shrinks in the spring cylinder, and the side pressure wheel is separated from the decorative plate. Before starting to saw, the electromagnet is powered off, and the slider extends out of the spring cylinder under the action of the spring until the side pressure wheel contacts the decorative plate and holds its edge. During the sawing process, the side pressure wheel and the rear push plate squeeze the front of the saw cut to prevent the front end of the saw cut from cracking due to force, thereby protecting the decorative plate and preventing the decorative plate from being damaged.

[0008] Furthermore, the transmission assembly includes an upper drive unit and a lower drive unit, and the upper drive unit and the lower drive unit have the same structure. The upper drive unit includes a center gear, three idler wheels and a transmission wheel. The center gear, three idler wheels and the transmission wheel are all rotatably installed in the band saw machine. The center gear is located in the middle of the transmission wheel. The inner ring of the transmission wheel is provided with tooth grooves. The three idler wheels are evenly distributed in a ring shape between the center gear and the transmission wheel. The servo motor drives the center gear to rotate, and the center gear drives the transmission wheel to rotate through the idler wheel. The transmission wheels on the upper drive unit and the lower transmission unit drive the band saw blade to move to cut the decorative panels.

[0009] Furthermore, the central gears of the upper drive unit and the lower drive unit are each connected to a servo motor, and the two servo motors are arranged on the outside of the band saw machine. The band saw blade is connected between the two transmission wheels. A fan is also arranged on the side of each central gear away from the servo motor. A number of ventilation holes are opened at positions corresponding to the upper drive unit and the lower transmission unit on the band saw machine. When the central gear rotates, the fan is driven to rotate, so that air flows through the interior of the band saw machine. The band saw blade generates higher heat during the sawing process. When the band saw blade contacts the transmission wheel, the heat will be conducted to the transmission wheel. The air flow flows through the interior of the band saw machine to dissipate the heat of the transmission wheel, thereby dissipating the heat of the band saw blade.

[0010] Furthermore, the heat dissipation assembly includes an upper spiral coil and a lower spiral coil, both of which are installed on the inner wall of the band saw machine. The upper spiral coil is located at the air outlet of the fan connected to the upper transmission unit, and the lower spiral coil is located at the air outlet of the fan connected to the lower transmission unit. The outer ring of the lower spiral coil is connected to the outer ring of the upper spiral coil by a series pipe.

[0011] Furthermore, the heat dissipation component also includes a compression pump, a flow control valve and an evaporation hollow sleeve, the high-pressure port of the compression pump is connected to the central part of the upper spiral coil, the negative-pressure port of the compression pump is connected to the upper outlet pipe, the rotor of the compression pump is coaxially connected to the fan, the inlet of the flow control valve is connected to the central part of the lower spiral coil, the outlet of the flow control valve is connected to the lower inlet pipe, the other end of the upper outlet pipe is connected to the top of the evaporation hollow sleeve, and the other end of the lower inlet pipe is connected to the bottom of the evaporation hollow sleeve.

[0012] Furthermore, the band saw blade passes through the middle of the evaporator hollow sleeve, and the upper outlet pipe and the lower inlet pipe are both connected to the interior of the evaporator hollow sleeve. The evaporator hollow sleeve is filled with a condenser, and the rotor of the compression pump rotates to drive the condenser to circulate in the heat dissipation component. The condenser is compressed into the upper and lower spiral coils, and the upper and lower spiral coils are cooled by air with the help of the airflow generated by the fan. The condenser enters the lower inlet pipe through the flow control valve, the pressure drops suddenly, and the temperature drops, so that the temperature of the evaporator hollow sleeve is reduced, and the passing band saw blade is cooled. Subsequently, the condenser is drawn into the compression pump through the upper outlet pipe and is compressed again, thereby achieving the heat dissipation of the upper and lower spiral coils and the refrigeration effect of the evaporator hollow sleeve, thereby achieving rapid cooling of the band saw blade.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Before sawing, use the spring cylinder to extend the slider outward until the side pressure wheel contacts the decorative board and holds its edge. During the sawing process, the side pressure wheel and the rear push plate squeeze the front of the saw cut to prevent the front end of the saw cut from cracking due to force, thereby protecting the decorative board and preventing damage to the decorative board.

[0015] 2. When the band saw blade contacts the drive wheel, the heat will be transferred to the drive wheel, and the airflow will flow through the inside of the band saw machine to dissipate the heat of the drive wheel, thereby dissipating the heat of the band saw blade. The condensing agent circulates in the heat dissipation component, and the upper and lower spiral coils are cooled by air with the help of the airflow generated by the fan. The temperature of the evaporating hollow casing is reduced to cool the passing band saw blade, thereby achieving the heat dissipation effect of the upper and lower spiral coils and the cooling effect of the evaporating hollow casing, thereby achieving rapid cooling of the band saw blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall appearance structure of the present invention is shown in FIG. Figure 1 ;

[0017] Figure 2 The overall appearance structure of the present invention is shown in FIG. Figure 2 ;

[0018] Figure 3 The overall appearance structure of the present invention is shown in FIG. Figure 3 ;

[0019] Figure 4 It is a structural schematic diagram of the bow band saw machine of the present invention;

[0020] Figure 5 The internal structure of the bow band saw machine of the present invention is shown in FIG. Figure 1 ;

[0021] Figure 6 The internal structure of the bow band saw machine of the present invention is shown in FIG. Figure 2 ;

[0022] Figure 7 This is a schematic diagram of the structure of the heat dissipation component of the present invention;

[0023] Figure 8 It is a schematic structural diagram of the transmission assembly of the present invention.

[0024] In the figure: 1. Band saw machine; 2. Reinforcement ribs; 3. Guide rails; 4. Band saw blades; 5. Conveyor; 6. Material table; 7. Upper cross frame; 8. Second moving module; 9. Back push plate; 10. First electric push rod; 11. Side push plate; 12. Second electric push rod; 13. Upper pressure plate; 14. Spring cylinder; 15. Side pressure wheel; 16. Upper transmission unit; 17. Lower transmission unit; 18. Center gear; 19. Idle wheel; 20. Transmission wheel; 21. Servo motor; 22. Fan; 23. Compression pump; 24. Upper spiral coil; 25. Lower spiral coil; 26. Series pipe; 27. Flow control valve; 28. Evaporation hollow casing; 29. ​​Upper outlet pipe; 30. Lower inlet pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Example: Figure 1-Figure 8As shown, the present invention provides a technical solution, a sawing machine for decorative panels with an anti-damage function, comprising a band saw machine 1, a reinforcing rib 2, a guide rail 3, a band saw blade 4, a conveyor 5 and a material table 6, the reinforcing rib 2 is arranged on both sides of the band saw machine 1, a first movable module is arranged at the bottom of the reinforcing rib 2, the first movable module is arranged on the guide rail 3, the first movable module is connected to the control system through a circuit, a transmission component and a heat dissipation component are arranged inside the band saw machine 1, the band saw blade 4 is installed on the transmission component, the heat dissipation component dissipates the heat of the band saw blade 4, the conveyor 5 and the material table 6 are respectively arranged on both sides of the sawing edge of the band saw blade 4, the control system controls the first movable module to move on the guide rail 3, the first movable module drives the band saw machine 1 to move, and the band saw blade 4 realizes the cutting of the decorative panel.

[0027] An upper cross frame 7 is arranged above the material table 6, a pair of second electric push rods 12 are arranged at the bottom of the upper cross frame 7, an upper pressure plate 13 is connected to the push rods of the pair of second electric push rods 12, a pair of first electric push rods 10 are installed on one side of the material table 6, a side push plate 11 is installed on the push rods of the pair of first electric push rods 10, a rear push plate 9 is arranged on the side of the material table 6 away from the band saw machine 1, the rear push plate 9 is installed on the material table 6 through the second moving module 8, and the second moving module 8 is connected to the control system through the circuit. Before cutting the decorative plate, the operator places the decorative plate to be cut on the material table 6, and the first electric push rod 10 pushes the side push plate 11 to move The second electric push rod 12 pushes the upper pressing plate 13 to move, and the upper pressing plate 13 is used to press the decorative plate being cut, so as to stabilize the decorative plate. After each cutting is completed, the cut decorative plate is moved out with the conveyor 5, and the first electric push rod 10 pulls back the side push plate 11, and the second electric push rod 12 pulls back the upper pressing plate 13. The second movable module 8 drives the rear push plate 9 to move, and further pushes out a part of the decorative plate on the material table 6. The side push plate 11 and the upper pressing plate 13 re-fix the decorative plate, so that the band saw blade 4 can perform another round of sawing and cutting of the decorative plate.

[0028] A spring cylinder 14 is arranged on the outside of the band saw machine 1, and a slider is slidably installed inside the spring cylinder 14, and a side pressure wheel 15 is rotatably installed on one end of the slider extending out of the spring cylinder 14, and an electromagnet (not shown in the figure) is arranged inside the spring cylinder 14 on the side away from the side pressure wheel 15, and the electromagnet is connected to the control system circuit. Before the band saw machine 1 moves, the electromagnet is in a power-on state, and the electromagnet absorbs the slider, and the slider shrinks in the spring cylinder 14 to overcome the elastic force of the spring, and the side pressure wheel 15 is separated from the decorative plate. Before starting to saw, the electromagnet is powered off, and the slider extends out of the spring cylinder 14 under the action of the spring until the side pressure wheel 15 contacts the decorative plate and supports its edge. During the sawing process, the side pressure wheel 15 and the rear push plate 9 squeeze the front of the saw cut to prevent the front end of the saw cut from cracking due to force, thereby protecting the decorative plate and preventing the decorative plate from being damaged.

[0029] The transmission assembly includes an upper transmission assembly 16 and a lower transmission assembly 17. The upper transmission assembly 16 and the lower transmission assembly 17 have the same structure. The upper transmission assembly 16 includes a central gear 18, three idler wheels 19 and a transmission wheel 20. The central gear 18, the three idler wheels 19 and the transmission wheel 20 are all rotatably installed in the band saw machine 1. The central gear 18 is located in the middle of the transmission wheel 20. The inner ring of the transmission wheel 20 is provided with a tooth groove. The three idler wheels 19 are evenly distributed in a ring shape between the central gear 18 and the transmission wheel 20. The central gears 18 of the upper transmission assembly 16 and the lower transmission assembly 17 are each connected to a servo motor 21. The two servo motors 21 are arranged on the outside of the band saw machine 1. The band saw blade 4 is connected between the two transmission wheels 20. Each central gear 18 is away from the servo motor 21. A fan 22 is also provided on one side of the machine 21. A plurality of ventilation holes are provided at positions corresponding to the upper transmission unit 16 and the lower transmission unit 17 on the band saw machine 1. The servo motor 21 drives the central gear 18 to rotate. The central gear 18 drives the transmission wheel 20 to rotate through the idler wheel 19. The transmission wheel 20 on the upper transmission unit 16 and the lower transmission unit 17 drives the band saw blade 4 to move to cut the decorative plate. The rotation of the central gear 18 drives the fan 22 to rotate at the same time, so that the airflow flows through the interior of the band saw machine 1. The band saw blade 4 generates a relatively high amount of heat during the sawing process. When the band saw blade 4 contacts the transmission wheel 20, the heat will be conducted to the transmission wheel 20. The airflow flows through the interior of the band saw machine 1 to dissipate the heat of the transmission wheel 20, thereby dissipating the heat of the band saw blade 4.

[0030] The heat dissipation assembly includes an upper spiral coil 24 and a lower spiral coil 25, both of which are installed on the inner wall of the band saw machine 1. The upper spiral coil 24 is located at the air outlet of the fan 22 connected to the upper transmission unit 16, and the lower spiral coil 25 is located at the air outlet of the fan 22 connected to the lower transmission unit 17. The outer ring of the lower spiral coil 25 is connected to the outer ring of the upper spiral coil 24 by a series pipe 26. The heat dissipation assembly also includes a compression pump 23, a flow control valve 27 and an evaporation hollow sleeve 28, the high-pressure port of the compression pump 23 is connected to the center of the upper spiral coil 24, the negative-pressure port of the compression pump 23 is connected to the upper outlet pipe 29, the rotor of the compression pump 23 is coaxially connected to the fan 22, the inlet of the flow control valve 27 is connected to the center of the lower spiral coil 25, the outlet of the flow control valve 27 is connected to the lower inlet pipe 30, the other end of the upper outlet pipe 29 is connected to the top of the evaporation hollow sleeve 28, and the other end of the lower inlet pipe 30 is connected to the bottom of the evaporation hollow sleeve 28.

[0031] The band saw blade 4 passes through the middle of the evaporator hollow sleeve 28, and the upper outlet pipe 29 and the lower inlet pipe 30 are both connected to the interior of the evaporator hollow sleeve 28. The evaporator hollow sleeve 28 is filled with a condenser, and the rotor of the compression pump 23 rotates, driving the condenser to circulate in the heat dissipation component, and the condenser is compressed into the upper spiral coil 24 and the lower spiral coil 25. With the help of the airflow generated by the fan 22, the upper spiral coil 24 and the lower spiral coil 25 are cooled by air, and the condenser enters the lower inlet pipe 30 through the flow control valve 27. The pressure drops suddenly, and the temperature drops, so that the temperature of the evaporator hollow sleeve 28 is reduced, and the passing band saw blade 4 is cooled. Subsequently, the condenser is drawn into the compression pump 23 through the upper outlet pipe 29 and compressed again, so as to achieve the heat dissipation effect of the upper spiral coil 24 and the lower spiral coil 25 and the refrigeration effect of the evaporator hollow sleeve 28, thereby achieving rapid cooling of the band saw blade 4.

[0032] The working principle of the present invention is as follows: the control system controls the first moving module to move on the guide rail 3, the first moving module drives the band saw machine 1 to move, and the band saw blade 4 realizes the cutting of the decorative plate. Before cutting the decorative plate, the operator places the decorative plate to be cut on the material table 6, and the first electric push rod 10 pushes the side push plate 11 to move so that the edges of the decorative plate are aligned. During the cutting process, the second electric push rod 12 pushes the upper pressure plate 13 to move, and the upper pressure plate 13 is used to press the decorative plate being cut, so as to stabilize the decorative plate. After each cutting is completed, the cut decorative plate is moved out with the conveyor 5, the first electric push rod 10 pulls back the side push plate 11, and the second electric push rod 12 pulls back the upper pressure plate 13, and the second moving module 8 drives the rear push plate 9 to move, and continues to push out a part of the decorative plate on the material table 6, and the side push plate 11 and the upper pressure plate 13 re-fix the decorative plate so that the band saw blade 4 can perform another round of sawing and cutting of the decorative plate.

[0033] Before the band saw machine 1 moves, the electromagnet is energized, the electromagnet attracts the slider, the slider overcomes the elastic force of the spring and shrinks in the spring cylinder 14, the side pressure wheel 15 is separated from the decorative sheet, and before starting to saw, the electromagnet is powered off, and the slider extends out of the spring cylinder 14 under the action of the spring until the side pressure wheel 15 contacts the decorative sheet and supports its edge. During the sawing process, the side pressure wheel 15 and the rear push plate 9 squeeze the front of the saw cut to prevent the front end of the saw cut from cracking due to force, thereby protecting the decorative sheet and preventing damage to the decorative sheet.

[0034] The servo motor 21 drives the central gear 18 to rotate, and the central gear 18 drives the transmission wheel 20 to rotate through the idler wheel 19. The transmission wheel 20 on the upper transmission unit 16 and the lower transmission unit 17 drives the band saw blade 4 to move to cut the decorative plate. The rotation of the central gear 18 drives the fan 22 to rotate at the same time, so that the airflow flows through the inside of the band saw machine 1. The band saw blade 4 generates a high amount of heat during the sawing process. When the band saw blade 4 contacts the transmission wheel 20, the heat will be transferred to the transmission wheel 20. The airflow flows through the inside of the band saw machine 1 to dissipate the heat of the transmission wheel 20, which has the effect of dissipating the heat of the band saw blade 4. The compression pump 23 The rotor rotates, driving the condensing agent to circulate in the heat dissipation component. The condensing agent is compressed into the upper spiral coil 24 and the lower spiral coil 25. With the help of the airflow generated by the fan 22, the upper spiral coil 24 and the lower spiral coil 25 are cooled by air. The condensing agent enters the lower inlet pipe 30 through the flow control valve 27. The pressure drops suddenly, and the temperature drops, so that the temperature of the evaporating hollow sleeve 28 is reduced, and the passing band saw blade 4 is cooled. Then, the condensing agent is drawn into the compression pump 23 through the upper outlet pipe 29 and is compressed again, thereby achieving the effect of heat dissipation of the upper spiral coil 24 and the lower spiral coil 25 and refrigeration of the evaporating hollow sleeve 28, thereby achieving rapid cooling of the band saw blade 4.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A sawing machine for decorative panels with anti-damage function, characterized in that: The invention comprises a band saw machine (1), a reinforcing rib (2), a guide rail (3), a band saw blade (4), a conveyor (5) and a material table (6), wherein the reinforcing rib (2) is arranged on both sides of the band saw machine (1), a first movable module is arranged at the bottom of the reinforcing rib (2), the first movable module is arranged on the guide rail (3), and the first movable module is connected to a control system through a circuit, a transmission component and a heat dissipation component are arranged inside the band saw machine (1), the band saw blade (4) is mounted on the transmission component, and the heat dissipation component dissipates heat for the band saw blade (4), and the conveyor (5) and the material table (6) are respectively arranged on both sides of the sawing edge of the band saw blade (4).

2. A decorative plate sawing machine with anti-damage function according to claim 1, characterized in that: An upper cross frame (7) is arranged above the material platform (6), a pair of second electric push rods (12) are arranged at the bottom of the upper cross frame (7), the push rods of the pair of second electric push rods (12) are connected to an upper pressure plate (13), a pair of first electric push rods (10) are installed on one side of the material platform (6), and a pair of side push plates (11) are installed on the push rods of the pair of first electric push rods (10).

3. The sawing machine for decorative panels with anti-damage function according to claim 1, characterized in that: A rear push plate (9) is provided on the side of the material platform (6) away from the band saw machine (1), and the rear push plate (9) is installed on the material platform (6) through a second movable module (8), and the second movable module (8) is connected to the control system through an electric circuit.

4. The decorative plate sawing machine with anti-damage function according to claim 1, characterized in that: A spring cylinder (14) is arranged on the outside of the band saw machine (1), a slider is slidably installed inside the spring cylinder (14), a side pressure wheel (15) is rotatably installed on one end of the slider extending out of the spring cylinder (14), an electromagnet is arranged inside the side of the spring cylinder (14) away from the side pressure wheel (15), and the electromagnet is connected to the control system circuit.

5. The sawing machine for decorative panels with anti-damage function according to claim 1, characterized in that: The transmission assembly comprises an upper transmission assembly (16) and a lower transmission assembly (17). The upper transmission assembly (16) and the lower transmission assembly (17) have the same structure. The upper transmission assembly (16) comprises a central gear (18), three idler wheels (19) and a transmission wheel (20). The central gear (18), the three idler wheels (19) and the transmission wheel (20) are all rotatably mounted in the band saw machine (1). The central gear (18) is located in the middle of the transmission wheel (20). The inner ring of the transmission wheel (20) is provided with tooth grooves. The three idler wheels (19) are evenly distributed in a ring shape between the central gear (18) and the transmission wheel (20).

6. The sawing machine for decorative panels with anti-damage function according to claim 5, characterized in that: The central gears (18) of the upper drive unit (16) and the lower drive unit (17) are each connected to a servo motor (21). The two servo motors (21) are arranged on the outside of the band saw machine (1). The band saw blade (4) is connected between the two drive wheels (20). A fan (22) is also arranged on the side of each central gear (18) away from the servo motor (21). A plurality of ventilation holes are provided on the band saw machine (1) at positions corresponding to the upper drive unit (16) and the lower drive unit (17).

7. The sawing machine for decorative panels with anti-damage function according to claim 5, characterized in that: The heat dissipation component comprises an upper spiral coil (24) and a lower spiral coil (25), both of which are mounted on the inner wall of the band saw machine (1), the upper spiral coil (24) being located at the air outlet of a fan (22) connected to the upper transmission unit (16), the lower spiral coil (25) being located at the air outlet of a fan (22) connected to the lower transmission unit (17), and the outer ring of the lower spiral coil (25) and the outer ring of the upper spiral coil (24) being connected to a series pipe (26).

8. The decorative plate sawing machine with anti-damage function according to claim 7, characterized in that: The heat dissipation component also includes a compression pump (23), a flow control valve (27) and an evaporation hollow sleeve (28); the high-pressure port of the compression pump (23) is connected to the central portion of the upper spiral coil (24); the negative-pressure port of the compression pump (23) is connected to an upper outlet pipe (29); the rotor of the compression pump (23) is coaxially connected to the fan (22); the inlet of the flow control valve (27) is connected to the central portion of the lower spiral coil (25); the outlet of the flow control valve (27) is connected to a lower inlet pipe (30); the other end of the upper outlet pipe (29) is connected to the top of the evaporation hollow sleeve (28); and the other end of the lower inlet pipe (30) is connected to the bottom of the evaporation hollow sleeve (28).

9. The decorative plate sawing machine with anti-damage function according to claim 8, characterized in that: The band saw blade (4) passes through the middle of the evaporation hollow sleeve (28), the upper outlet pipe (29) and the lower inlet pipe (30) are both connected to the inside of the evaporation hollow sleeve (28), and the evaporation hollow sleeve (28) is filled with a condensing agent.

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