A sawing machine for profile cutting

Abstract

The present application provides a sawing machine for profile cutting, belonging to the technical field of cutting, including: two mounting seats and a cutting mechanism. A moving frame is arranged on the mounting seat. The cutting mechanism includes a saw blade. An avoidance mechanism for separating the profiles on both sides from the saw blade is arranged on the mounting seat. The avoidance mechanism includes a gear. A fixed frame is connected to the mounting seat. A sliding plate is slidably connected to the upper side wall of the fixed frame. A first rack and a second rack capable of meshing with the gear are respectively connected to the fixed frame and the sliding plate. A first cylinder and a second cylinder are respectively arranged on the inner and outer sides of the saw blade. Pressure plates are fixedly connected to the telescopic ends of both. A baffle is arranged between the moving frames opposite to the pressure plates. When the sliding plate moves, the second cylinder can move along with the sliding plate. In the present application, the pressure plates and the baffle cooperate to press the profiles, improving the force uniformity on the saw blade and the service life of the saw blade. The movement of the moving frame can create a gap between the profiles on both sides and the saw blade, reducing the occurrence of material sweeping during the return stroke.

Description

Technical Field

[0001] The present application relates to the technical field of cutting, and particularly to a sawing machine for profile cutting. Background Art

[0002] In metal processing and manufacturing, profile cutting is a basic and crucial process. With the continuous progress of industrial technology, the requirements for cutting accuracy, efficiency, and equipment durability are increasing day by day. Traditional single-head sawing machines often have problems such as low efficiency and rough cutting surfaces when cutting large or long-profile materials. Therefore, double-head sawing machines have emerged. By equipping two saw blades simultaneously, they achieve two-way cutting of profiles, significantly improving the cutting efficiency.

[0003] After the double-head sawing machine finishes cutting, the saw blade needs to return to the initial position along the original sawing trajectory. During this process, the saw blade is prone to contacting the end face of the cut profile, that is, "return stroke material sweeping". This not only causes the cut end face of the profile to become rough, affecting the accuracy of subsequent processing and assembly, but also exacerbates the wear of the saw blade due to long-term tool sweeping, significantly shortening the service life of the saw blade.

[0004] Referring to the Chinese patent application document with the publication number CN116275278A and the name of a sawing method for a double-head cutting saw for 45-degree angles of door and window frame profiles, it includes a bed body. A left sawing head and a right sawing head are installed on the bed body. The right sawing head is slidably installed on the bed body. Both the left sawing head and the right sawing head include a horizontal workbench, a vertical workbench, a profile clamping device, a sawing motor, a saw blade, and a moving mechanism. The sawing motor drives the saw blade to rotate. The saw blade is perpendicular to the horizontal workbench and forms an angle of 45 degrees with the vertical workbench. A saw blade clearance mechanism and a laterally movable loading rack are provided on both the left sawing head and the right sawing head. A left blanking plate inclined downward to the left and a positioning rod capable of moving up and down are provided on the left side of the horizontal workbench of the left sawing head. The positioning rod can position the end of the profile. During the working process, the positioning rod first moves up to position the end of the profile. The sawing motor drives the saw blade to rotate, and the moving cylinder drives the motor base to swing on the first hinge seat. The sawing motor and the saw blade move to cut the profile. After cutting, the positioning rod moves down, and the end of the profile slides along the left blanking plate and drops. The material moving cylinder drives the loading rack to move to the right, so that the left end face of the blank profile leaves the right saw blade. Then, the left saw blade and the right saw blade move laterally under the drive of the clearance cylinder, so that the saw teeth are separated from the cut end face of the profile.

[0005] Referring to the above technical solution, only the positioning rod is used to position the end of the profile in the above solution. During the sawing process, the end of the profile may move and vibrate, which may cause the saw blade to receive uneven forces and impose an additional load on the saw blade, increasing the risk of saw blade wear and damage. Summary of the Invention

[0006] In order to reduce the wear of the saw blade, the present application provides a sawing machine for profile cutting.

[0007] The present application provides a sawing machine for profile cutting, adopting the following technical solutions. A sawing machine for profile cutting includes a frame. There are two mounting seats arranged on the frame. The mounting seat at the left end is fixedly arranged. A cutting mechanism with adjustable cutting angle is installed on each mounting seat, and the structures of the two cutting mechanisms are symmetrically arranged. A moving frame is slidably connected to each of the two mounting seats, and the moving frame is driven by a moving mechanism to perform linear movement. Each cutting mechanism is installed on a moving frame. The cutting mechanism includes a saw blade. An avoidance mechanism is arranged on each mounting seat. The avoidance mechanism is used to separate the profiles on both sides from the saw blade. The avoidance mechanism includes a gear rotatably connected to the moving frame. A fixed frame is fixedly connected to the mounting seat. A sliding plate is slidably connected to the upper side wall outside the saw blade on the fixed frame. A first rack and a second rack that can mesh with the gear are respectively fixedly connected to the fixed frame and the sliding plate. A first cylinder and a second cylinder are respectively arranged on the inner and outer sides of the saw blade. Pressure plates are fixedly connected to the telescopic ends of the first cylinder and the second cylinder. A baffle is arranged opposite to the pressure plates between the moving frames. When the sliding plate moves, the second cylinder can move along with the sliding plate.

[0008] By adopting the above technical solutions, when performing double-head cutting on the profile, the first cylinder and the second cylinder respectively drive the pressure plates to move and cooperate with the baffle to press the profile. After the cutting is completed, the moving mechanism drives the moving frame to move outward. The movement of the moving frame drives the cutting mechanism and the gear to move. The gear moves and meshes with the first rack and the second rack respectively. The sliding plate moves outward relative to the moving frame and the saw blade. The movement of the sliding plate drives the second cylinder and the profile outside the saw blade to move, and a gap appears between the saw blade and the profiles on both sides.

[0009] In the present application, by cooperating the pressure plates with the baffle to press both sides of the profile, the risk of movement and vibration at the end of the profile can be reduced, the force uniformity of the saw blade is improved, the load of the saw blade is reduced, the service life of the saw blade is increased, and the occurrence of material chipping can be reduced, improving production safety. And when the cutting of the profile is completed and the moving frame moves automatically, the movement of the pressure plate outside the saw blade can drive the end of the profile to move with the cooperation of the baffle, so that a gap appears between the profiles on both sides of the saw blade and the saw blade. This can not only reduce the risk of the profile tilting and rubbing against the saw blade due to the inclined left blanking plate when the pressure on the profile by the pressure plate is released, but also reduce the occurrence of the phenomenon of sweeping the material during the return journey, which is beneficial to improving the cutting effect of the profile. In addition, the avoidance mechanism can be applied to different-angle cutting of the profile by the saw blade, and has strong versatility.

[0010] Optionally, the cutting mechanism includes a mounting frame disposed between the front and rear side walls of the moving frame. A saw blade is rotatably disposed on the mounting frame. An adjusting assembly and a driving assembly are provided on the moving frame. The adjusting assembly is used to adjust the angle of the saw blade, and the saw blade is driven by the driving assembly to linearly move.

[0011] Optionally, the adjusting assembly includes a rotating frame hinged between the moving frames. The mounting frame is slidably connected to the upper side wall of the rotating frame. A first linear driver is mounted on the moving frame. A first linear driver is hinged to the moving frame. A connecting rod is rotatably connected to the telescopic end of the first linear driver. The connecting rod is fixedly connected to the rotating frame. The mounting frame is disposed on the rotating frame and on the side of the baffle away from the first cylinder. A communication hole for the saw blade to pass through is provided on the baffle.

[0012] By adopting the above technical solution, during use, the telescopic movement of the telescopic end of the first linear driver can drive the mounting frame and the saw blade to rotate, so as to adjust the angle of the saw blade, and the structure is simple.

[0013] Optionally, the mounting frame is slidably connected to the rotating frame, and the driving assembly drives the mounting frame to linearly move through a second linear driver.

[0014] By adopting the above technical solution, during use, when the telescopic end of the second linear driver extends, it drives the mounting frame to move towards the baffle, and the movement of the mounting frame drives the saw blade to move to cut the profile; when the telescopic end of the second linear driver contracts, it drives the mounting frame to move away from the baffle, and the movement of the mounting frame drives the saw blade to return.

[0015] Optionally, an arc-shaped plate is slidably penetrated through the sliding plate. The second cylinder is fixedly connected to the upper end of the arc-shaped plate. An avoidance groove for the arc-shaped plate to pass through is provided on the fixed frame. A connecting block is fixedly connected to the lower end of the arc-shaped plate. The end of the connecting block away from the arc-shaped plate is slidably connected in the connecting cylinder. A sliding groove for the connecting cylinder to slide is provided on the upper side wall of the rotating frame. The center of the arc-shaped plate coincides with the hinge point of the rotating frame and the moving frame.

[0016] By adopting the above technical solution, the setting of the arc-shaped plate, the connecting block and the connecting cylinder enables the second cylinder to always remain in a position close to the saw blade during the rotation of the rotating frame, which not only reduces the risk that the clamping plate cannot clamp the profile due to the short end of the profile, but also ensures that the profile can be clamped during the cutting of different angles of the end of the profile, improves the clamping effect on the profile, and is beneficial to improving the service life of the saw blade; the setting of the sliding groove can facilitate the synchronous movement of the second cylinder when the sliding plate moves, and at the same time can guide the movement of the second cylinder.

[0017] Optionally, a support frame is provided on the outside of the saw blade, the support frame is located between the baffle plate and the sliding plate, and one end of the support frame close to the saw blade is hinged on the sliding plate, an arc groove is provided on the lower side wall of the support frame, and a first support rod is abutted against the bottom of the support frame, the first support rod is fixedly connected to the fixed frame, and when the movable frame moves outward, the first support rod can enter the arc groove.

[0018] By adopting the above technical solution, when cutting the profile, the first support rod can support the support frame so that the support frame maintains a horizontal state to support the bottom of the profile, which is beneficial to improve the clamping effect of the profile; when the profile cutting is completed and the mobile frame moves, the movement of the mobile frame drives the support frame to move, the first support rod enters the arc groove, and the support frame tilts, so that the waste profile after cutting can be easily dropped.

[0019] Optionally, the support frame is composed of an outer frame and a plurality of second support rods, and the plurality of second support rods are arranged at intervals between the outer frame and fixedly connected to the outer frame.

[0020] By adopting the above technical solution, the interval arrangement of the second support rods can facilitate the falling of waste chips generated during the cutting process, which is beneficial to maintaining the flatness of the bottom of the profile and ensuring the cutting effect of the profile.

[0021] Optionally, the moving mechanism drives the moving frame to move linearly via a third linear drive.

[0022] Optionally, a plurality of balls are spaced apart on the side wall of the baffle close to the first cylinder.

[0023] By adopting the above technical solution, the provision of the ball bearings can reduce the friction between the profile and the baffle when the second cylinder moves to drive the profile to move, thereby facilitating the movement of the profile.

[0024] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0025] 1. In the present application, the two sides of the profile are pressed by the cooperation of the pressure plate and the baffle plate, which can reduce the risk of movement and vibration of the profile end, improve the force uniformity of the saw blade, reduce the load on the saw blade, increase the life of the saw blade, reduce the occurrence of material breakage, and improve production safety; and when the cutting of the profile is completed and the movable frame moves automatically, the movement of the pressure plate located on the outside of the saw blade with the cooperation of the baffle plate can drive the movement of the profile end, so that the profile on both sides of the saw blade and the saw blade are spaced apart, which can reduce the risk of the profile tilting and causing friction with the saw blade due to the inclined setting of the left lower material plate when the pressure plate releases the pressure on the profile, and reduce the occurrence of return material sweeping phenomenon, which is beneficial to improving the cutting effect of the profile. In addition, the avoidance mechanism can be applied to the saw blade cutting the profile at different angles, and has strong versatility.

[0026] 2. The settings of the arc-shaped plate, connecting block and connecting cylinder enable the second cylinder to always stay close to the saw blade during the rotation of the rotating frame. This not only reduces the risk that the clamping plate cannot clamp the profile due to the short end of the profile, but also ensures that the profile can be clamped during cutting at different angles of the profile, improving the clamping effect on the profile and being beneficial to increasing the service life of the saw blade. The setting of the sliding groove can facilitate the synchronous movement of the second cylinder when the sliding plate moves, and at the same time guide the movement of the second cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0028] Figure 2 is a schematic diagram of the structure of the adjusting assembly in an embodiment of the present application;

[0029] Figure 3 is a schematic diagram of the structures of the first cylinder and the second cylinder in an embodiment of the present application;

[0030] Figure 4 is an embodiment of the present application Figure 3 is a schematic diagram of the structure of region A therein;

[0031] Figure 5 is a schematic diagram of the structures of the outer frame and the second support rod in an embodiment of the present application;

[0032] Figure 6 is a schematic diagram of the structure of the arc-shaped groove in an embodiment of the present application.

[0033] Description of the reference numerals: 1, frame; 11, mounting seat; 12, saw blade; 2, adjusting assembly; 21, rotating frame; 211, sliding groove; 22, first linear actuator; 3, driving assembly; 4, moving frame; 41, mounting frame; 5, moving mechanism; 6, avoidance mechanism; 61, gear; 62, fixed frame; 621, avoidance groove; 63, sliding plate; 64, first rack; 65, second rack; 66, first cylinder; 67, second cylinder; 671, pressing plate; 68, baffle; 681, communication hole; 682, ball; 7, arc-shaped plate; 71, connecting block; 72, connecting cylinder; 8, support frame; 81, arc-shaped groove; 82, outer frame; 83, second support rod; 9, first support rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will combine the embodiments of the present application Figures 1 - 6, the technical solutions of the embodiments of the present application are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0035] Referring to Figure 1 and Figure 2 , a sawing machine for profile cutting includes a frame 1, a mounting base 11, a cutting mechanism, and an avoidance mechanism 6. The frame 1 is disposed on a horizontal plane. There are two mounting bases 11, both of which are mounted on the frame 1. The mounting base 11 at the left end is fixedly mounted on the frame 1, and the mounting base 11 on the right side is slidably connected to the frame 1 and can linearly move in the left-right direction. A moving frame 4 is provided on each of the two mounting bases 11. The moving frames 4 on the two mounting bases 11 are symmetrically arranged. A moving mechanism 5 is provided on each mounting frame 41. The moving mechanism 5 drives the moving frame 4 to linearly move in the left-right direction through a third linear driver;

[0036] Among them, referring to Figure 1 and Figure 2 , there are two cutting mechanisms. The two cutting mechanisms are respectively arranged on the two moving frames 4 and are symmetrically structured. The cutting angle of the cutting mechanism is adjustable and can cut profiles; there are two avoidance mechanisms 6. Each avoidance mechanism 6 is respectively arranged on one mounting base 11, and the structures of the two avoidance mechanisms 6 are symmetrically arranged. The avoidance mechanism 6 is used to separate the profiles on both sides from the saw blade 12 of the cutting mechanism. Among them, the cutting mechanisms on the two mounting bases 11 can operate simultaneously, and the avoidance mechanisms 6 on the two mounting bases 11 can operate simultaneously.

[0037] Referring to Figure 1 and Figure 2 , the cutting mechanism includes a saw blade 12, an adjusting component 2, and a driving component 3. An installation frame 41 is arranged between the front and rear side walls of each moving frame 4. Each saw blade 12 is rotatably arranged on an installation frame 41. A rotating source is arranged on the installation frame 41, and the rotating source drives the saw blade 12 to rotate around its own center through a transmission method. There are two adjusting components 2. Each adjusting component 2 is arranged on one moving frame 4 and is used to adjust the angle of the saw blade 12; there are two driving components 3. Each driving component 3 is arranged on one moving frame 4 and is used to drive the saw blade 12 to linearly move in the front-rear direction.

[0038] Referring to Figure 2, the adjusting assembly 2 includes a rotating frame 21 and a first linear driver 22. The rotating frame 21 is disposed between the moving frames 4 and is hinged to the moving frames 4. The mounting frame 41 is slidably connected to the upper sidewall of the rotating frame 21. The first linear driver 22 is hinged to the moving frames 4. A connecting rod is rotatably connected to the telescopic end of the first linear driver 22, and the connecting rod is fixedly connected to a side of the rotating frame 21 away from the hinge. The first linear driver 22 can be a hydraulic push rod.

[0039] During use, the telescopic end of the first linear driver 22 extends and retracts to drive the rotating frame 21 to rotate around the hinge between the moving frames 4 and the rotating frame 21, and the inclination angle of the saw blade 12 changes, with a simple structure.

[0040] Referring to Figure 2 and Figure 3 , the driving assembly 3 includes a second linear driver. The second linear driver is mounted on the mounting frame 41, and the telescopic end of the second linear driver is fixedly connected to the inner sidewall at the rear of the rotating frame 21. The second linear driver can be a hydraulic push rod.

[0041] During use, when the telescopic end of the second linear driver extends, it drives the mounting frame 41 to move. The movement of the mounting frame 41 drives the saw blade 12 to move to cut the profile; when the telescopic end of the second linear driver contracts, it drives the mounting frame 41 to move, and the movement of the mounting frame 41 drives the saw blade 12 to return.

[0042] Referring to Figure 2 , Figure 3 and Figure 4 , the avoidance mechanism 6 includes a gear 61, a fixed frame 62, a sliding plate 63, a first rack 64, a second rack 65 and a pressing assembly. The gear 61 is rotatably connected to the moving frames 4. The fixed frame 62 is semi-frame-shaped and fixedly connected to the mounting base 11. The moving frames 4 can be slidably connected to the fixed frame 62. The sliding plate 63 is slidably connected to the upper sidewall of the fixed frame 62 and is located outside the saw blade 12. The fixed frame 62 and the sliding plate 63 are respectively fixedly connected with the first rack 64 and the second rack 65. The first rack 64 and the second rack 65 are respectively located on both sides of the gear 61 and can mesh with the gear 61. The pressing assembly is arranged on the fixing plate. The pressing assembly is used to press the profile on both sides of the saw blade 12 during cutting, and is used to drive the profile located outside the saw blade 12 to move synchronously with the sliding plate 63 when the cutting is completed and the sliding plate 63 moves.

[0043] During use, the clamping assembly presses the profile. When the cutting is completed and the moving frames 4 move outward, the movement of the moving frames 4 drives the saw blade 12 and the gear 61 to move. The gear 61 moves and meshes with the first rack 64 and the second rack 65 respectively. The sliding plate 63 moves outward relative to the moving frames 4 and the saw blade 12. The pressing assembly drives the profile located outside the saw blade 12 to move, and there is a gap between the saw blade 12 and the profiles on both sides.

[0044] Referring to Figure 1 and Figure 2 , the pressing assembly includes a first cylinder 66, a second cylinder 67, a pressing plate 671 and a baffle 68. The first cylinder 66 and the second cylinder 67 are respectively arranged on the inner and outer sides of the saw blade 12. There are multiple pressing plates 671, and each first cylinder 66 and second cylinder 67 is fixedly connected to a pressing plate 671. The baffle 68 is arranged opposite to the first cylinder 66 and is fixedly connected to the upper side wall of the rotating frame 21. The mounting frame 41 is arranged on the side of the baffle 68 away from the first cylinder 66. A communication hole 681 for the saw blade 12 to pass through is formed in the baffle 68. A plurality of balls 682 are arranged at intervals on the side wall of the baffle 68 close to the first cylinder 66.

[0045] Among them, referring to Figure 4 , Figure 5 and Figure 6 , the first cylinder 66 is fixedly connected to the fixed frame 62. An arc plate 7 is slidably penetrated through the sliding plate 63. The second cylinder 67 is fixedly connected to the upper end of the arc plate 7. An avoidance groove 621 for the arc plate 7 to pass through is formed in the fixed frame 62. A connecting block 71 is fixedly connected to the lower end of the arc plate 7. One end of the connecting block 71 away from the arc plate 7 is slidably connected in the connecting cylinder 72. A sliding groove 211 for the connecting cylinder 72 to slide is formed in the upper side wall of the rotating frame 21. The center of the arc plate 7 coincides with the hinge point of the rotating frame 21 and the moving frame 4.

[0046] When the profile needs to be cut, the telescopic ends of the first cylinder 66 and the second cylinder 67 extend to drive the pressing plate 671 to move, and the pressing plate 671 and the baffle 68 cooperate to press the profile; when the profile is cut and the sliding plate 63 moves, the sliding plate 63 moves to drive the arc plate 7, the first cylinder 66 and the connecting cylinder 72 to move, the first cylinder 66 moves to drive the pressing plate 671 to move, and the profile outside the saw blade 12 moves; when the angle of the saw blade 12 needs to be adjusted, the rotating frame 21 rotates to drive the connecting cylinder 72 and the connecting block 71 to rotate. During this period, relative sliding will occur between the connecting cylinder 72 and the connecting block 71, and the connecting cylinder 72 will slide along the sliding groove 211 to enable the arc plate 7 to rotate synchronously. The arc plate 7 rotates to drive the second cylinder 67 and the pressing plate 671 on the second cylinder 67 to rotate, and the pressing plate 671 on the second cylinder 67 is always close to the saw blade 12.

[0047] Through the settings of the arc plate 7, the connecting block 71 and the connecting cylinder 72, during the rotation of the rotating frame 21, the second cylinder 67 always remains in a position close to the saw blade 12, improving the clamping effect on the profile. This not only reduces the risk that the clamping plate cannot clamp the profile due to the short length of the profile, but also ensures that the profile can be clamped during the cutting of the profile at different angles, improving the clamping effect on the profile and being beneficial to increasing the service life of the saw blade 12. Through the setting of the sliding groove 211, it is possible to facilitate the synchronous movement of the second cylinder 67 when the sliding plate 63 moves, and at the same time, guide the movement of the second cylinder 67.

[0048] Referring to Figure 5 and Figure 6 , a sawing machine for profile cutting further includes a support frame 8 and a first support rod 9. The support frame 8 is located between the baffle 68 and the sliding plate 63, and one end of the support frame 8 close to the saw blade 12 is hinged to the sliding plate 63. The support frame 8 is composed of an outer frame 82 and a plurality of second support rods 83. The plurality of second support rods 83 are arranged at intervals between the outer frames 82 and fixedly connected to the outer frames 82. An arc-shaped groove 81 is formed in the lower side wall of the outer frame 82 of the support frame 8. The first support rod 9 is arranged below the support frame 8 and abuts against the support frame 8. The first support rod 9 is fixedly connected to the fixed frame 62. When the moving frame 4 moves outward, the first support rod 9 can enter the arc-shaped groove 81.

[0049] When cutting the profile, the first support rod 9 can support the support frame 8 to keep the support frame 8 in a horizontal state to support the bottom of the profile, which is beneficial to improving the clamping effect on the profile. When the profile cutting is completed and the moving frame 4 moves, the movement of the moving frame 4 drives the support frame 8 to move, and the first support rod 9 enters the arc-shaped groove 81, and the support frame 8 tilts, so that the profile waste after cutting can fall conveniently. Through the interval arrangement of the second support rods 83, it is convenient for the chips generated during the cutting process to fall, which is beneficial to keeping the bottom of the profile flat and ensuring the cutting effect on the profile.

[0050] The implementation principle of a sawing machine for profile cutting according to an embodiment of the present application is as follows:

[0051] When double-end cutting of the profile is required, first, the first cylinder 66 and the second cylinder 67 extend to drive the pressing plate 671 to move, and the pressing plate 671 cooperates with the baffle 68 to press the profile. Subsequently, the second linear actuator drives the mounting frame 41 and the saw blade 12 to move, and the saw blade 12 moves and rotates under the drive of the rotation source to cut the profile.

[0052] After the cutting is completed, the third linear driver drives the moving frame 4 to move outward. The movement of the moving frame 4 drives the movement of the gear 61. The gear 61 meshes with the first rack 64 and the second rack 65 respectively. The second rack 65 and the sliding plate 63 move relative to the moving frame 4. During the movement, the moving distance of the sliding plate 63 is twice that of the moving frame 4. When the sliding plate 63 moves, the movement of the sliding plate 63 drives the movement of the second cylinder 67. The movement of the second cylinder 67 drives the movement of the pressing plate 671, and the profiles outside the saw blade 12 move. The profiles on both sides of the saw blade 12 are spaced from the saw blade 12. Subsequently, the second linear driver drives the mounting frame 41 and the saw blade 12 to move in the reverse direction, and the saw blade 12 returns.

[0053] In addition, it should be noted that in the description of the present application, unless otherwise clearly specified and defined, the terms "mounted", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0054] The above is the preferred implementation mode of the present application. It should be pointed out that for those of ordinary skill in the art in the technical field, without departing from the principle described in the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A sawing machine for profile cutting, comprising a frame, two mounting seats are arranged on the frame, the mounting seat located at the left end is fixedly arranged, a cutting mechanism with adjustable cutting angle is installed on each mounting seat, and the structures of the two cutting mechanisms are symmetrically arranged, and it is characterized in that: There are movable frames slidably connected to both mounting seats, and the movable frames are driven by a moving mechanism to perform linear movement. Each cutting mechanism is mounted on a movable frame. The cutting mechanism includes a saw blade and a mounting frame disposed between the front and rear side walls of the movable frame. The saw blade is rotatably disposed on the mounting frame. An adjusting assembly and a driving assembly are provided on the movable frame. The adjusting assembly is used to adjust the angle of the saw blade, and the saw blade is driven by the driving assembly to linearly move; The adjusting assembly includes a rotating frame hinged between the movable frames. The mounting frame is slidably connected to the upper side wall of the rotating frame. A first linear driver is hinged on the movable frame. A connecting rod is rotatably connected to the telescopic end of the first linear driver. The connecting rod is fixedly connected to the rotating frame. A baffle is fixedly connected to the rotating frame; A avoiding mechanism is provided on each mounting seat. The avoiding mechanism is used to separate the profiles on both sides from the saw blade. The avoiding mechanism includes a gear rotatably connected to the movable frame. A fixed frame is fixedly connected to the mounting seat. A sliding plate is slidably connected to the upper side wall outside the saw blade of the fixed frame. A first rack and a second rack capable of meshing with the gear are respectively fixedly connected to the fixed frame and the sliding plate. A first cylinder and a second cylinder are respectively disposed on the inner and outer sides of the saw blade. Pressure plates are fixedly connected to the telescopic ends of the first cylinder and the second cylinder. A baffle is disposed opposite the pressure plates between the movable frames. When the sliding plate moves, the second cylinder can move with the sliding plate; The mounting frame is disposed on the rotating frame and on the side of the baffle away from the first cylinder. A communication hole for the saw blade to pass through is provided on the baffle; An arc-shaped plate is slidably penetrated through the sliding plate. The second cylinder is fixedly connected to the upper end of the arc-shaped plate. An avoiding groove for the arc-shaped plate to pass through is provided on the fixed frame. A connecting block is fixedly connected to the lower end of the arc-shaped plate. The end of the connecting block away from the arc-shaped plate is slidably connected in a connecting cylinder. A sliding groove for the connecting cylinder to slide is provided on the upper side wall of the rotating frame. The center of the arc-shaped plate coincides with the hinge joint of the rotating frame and the movable frame; A support frame is disposed outside the saw blade. The support frame is located between the baffle and the sliding plate, and the end of the support frame close to the saw blade is hinged to the sliding plate.

2. A sawing machine for profile cutting according to claim 1, characterized in that: The driving assembly drives the mounting frame to linearly move through a second linear driver.

3. A sawing machine for profile cutting according to claim 1, characterized in that: An arc-shaped groove is provided on the lower side wall of the support frame. A first support rod is disposed in abutting connection below the support frame. The first support rod is fixedly connected to the fixed frame. When the movable frame moves outward, the first support rod can enter the arc-shaped groove.

4. A sawing machine for profile cutting according to claim 3, characterized in that: The support frame is composed of an outer frame and a plurality of second support rods. The plurality of second support rods are spaced between the outer frames and fixedly connected to the outer frames.

5. A sawing machine for profile cutting according to claim 1, characterized in that: The moving mechanism drives the movable frame to linearly move through a third linear driver.

6. A sawing machine for profile cutting according to claim 1, characterized in that: A plurality of balls are spaced on the side wall of the baffle close to the first cylinder.

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