Profile sawing device

Abstract

The present invention relates to the technical field of sawing equipment, and specifically discloses a profile sawing device, comprising: a workbench, a sawing blade, a clamping cylinder and a clamping plate; a vertical clamping module is also provided on the workbench, and the vertical clamping module includes a clamping unit and a pushing unit; the clamping unit includes a telescopic member provided on the workbench, a mounting plate provided on the telescopic member, a plurality of supporting plates provided on the mounting plate at horizontal intervals in front and back, two mounting platforms provided on the supporting plate on the left and right, a movable platform connected to the mounting platform by a spring sliding connection, and a clamping member fixed on the movable platform. The beneficial effects of the present invention are as follows: after the sawing blade cuts the profile, the movable platforms on both sides will respectively drive the two sections of the profile to move a certain distance to both sides at the same time, so as to avoid the end face of the profile after being cut from contacting the sawing blade, so that when the sawing blade continues to move or returns, the end face of the profile is prevented from contacting the blade surface of the sawing blade, thereby avoiding scratches on the end face of the profile and ensuring production quality.

Description

Technical Field

[0001] The present invention relates to the technical field of sawing equipment, and in particular to a profile sawing device. Background Art

[0002] The use of profiles is relatively common in building structures. Profiles are objects with a certain geometric shape made from materials with certain strength and toughness through processes such as rolling, extrusion, and casting. During the profile processing process, the profiles need to be sawed.

[0003] The Chinese patent with authorization announcement number CN109226882B discloses an automatic aluminum profile sawing device, including a feed frame, a lifting feeding mechanism located in front of the feed frame, a picking mechanism located at the rear side of the feed frame, and a sawing device located on the right side of the feed frame; the picking mechanism is provided with a picking mechanism located above the feeding mechanism and a displacement mechanism for changing the position of the picking mechanism; the feed frame is provided with a loading push rod located on the upper layer and a feeding roller assembly located on the lower layer and evenly arranged; in actual use, a stack of straight aluminum profiles to be processed can be placed on the feeding mechanism, and then a single or multiple straight aluminum profiles can be grabbed from the stack of straight aluminum profiles by the picking mechanism and placed on the feeding roller assembly, and the single or multiple straight aluminum profiles can be pushed to the sawing device for sawing by the loading push rod; this method avoids manual placement of straight aluminum profiles, improves production and processing efficiency, reduces production costs, and improves the automation of straight aluminum profile sawing.

[0004] When the existing sawing device is working, after the saw cuts a single profile, it will continue to move to cut the remaining profiles until all the profiles are cut. When the profile is just cut, its end face will expand and deform due to heat. When the saw cuts forward or returns, the blade surfaces on both sides of the saw cutter will rub against the cutting surface of the profile, thereby increasing the surface roughness of the profile end face, resulting in defects such as scratches and burrs, which affect the quality of the finished product. Summary of the Invention

[0005] The present invention provides a profile sawing device, which aims to solve the technical problem that in the existing sawing device in the related art, after the sawing knife completes cutting a single profile, it will continue to move to cut the remaining multiple profiles until all the profiles are cut. When the profile has just been cut, its end face will expand and deform due to heat. When the sawing knife moves forward or back, the blade surfaces on both sides of the sawing knife will rub against the cutting surface of the profile, thereby increasing the surface roughness of the profile end face, causing defects such as scratches and burrs, and affecting the quality of the finished product.

[0006] A profile sawing device of the present invention comprises: a workbench, a sawing knife, a clamping cylinder and a clamping plate; a vertical clamping module is also provided on the workbench, and the vertical clamping module comprises a clamping unit and a pushing unit; the clamping unit comprises a telescopic part arranged on the workbench, a mounting plate arranged on the telescopic part, a plurality of bearing plates arranged on the mounting plate with front and rear horizontal intervals, two mounting platforms arranged on the bearing plate on the left and right, a movable platform connected to the mounting platform by a spring sliding, a clamping part fixed on the movable platform, and a force storage component is provided on each movable platform, the force storage component comprises a force storage component arranged on the movable platform, a push rod sliding horizontally on the movable platform; the pushing unit comprises a sliding plate sliding horizontally on the mounting plate and between the left and right mounting platforms, a plurality of extrusion blocks arranged on both sides of the sliding plate, the extrusion blocks respectively corresponding to the push rods, and the extrusion blocks have inclined surfaces, the sliding plate moves so that the inclined surface of the extrusion block pushes the push rod to slide, and the push rod squeezes the force storage component to store force.

[0007] Beneficial effects: After the clamping piece compresses the profile, it pushes the cylinder to drive the sliding plate to move. The inclined surfaces on the extrusion blocks on both sides will simultaneously push the push rods on both sides. The push rods drive the extrusion plates to slide and compress the force storage piece to store force. After the saw cuts the profile, the force of the force storage piece is released, and the moving platforms on both sides will respectively drive the two sections of the profile to move a certain distance to both sides at the same time to avoid contact between the end face of the cut profile and the saw. As the saw continues to move, the subsequent multiple profiles are gradually cut in the same way. Therefore, when the saw continues to move or returns, the end face of the profile is prevented from contacting the blade of the saw, which can avoid scratches on the end face of the profile and ensure production quality.

[0008] Preferably, a trapezoidal slider is provided on the supporting plate, and a sliding groove matching the slider is provided at the bottom of the mounting plate. The slider slides in the sliding groove, and the slider has a threaded hole that passes through the top and bottom, and a fixing bolt is installed in the threaded hole.

[0009] The effect is that the distance between each group of pressing units can be adjusted to be suitable for profiles of different sizes.

[0010] Preferably, a plurality of guide rollers are rotatably mounted on the upper surface of the workbench, and the guide rollers are horizontally spaced apart along the left-right direction.

[0011] The effect is that the guide roller is located at the bottom of the profile and can play a conveying role, making it easier for the profile to move to both sides.

[0012] Preferably, two driving grooves are provided on the two opposite side walls on the inner side of the mounting platform, and the two driving grooves on each side wall are arranged horizontally at intervals on the left and right sides, the driving groove has a horizontal section and an arc section, the horizontal section is connected to the arc section, and the arc section is bent upward, and moving columns are provided at positions corresponding to the driving grooves on the front and rear sides of the movable platform, and the moving columns are slidably fitted in the driving grooves.

[0013] The effect is that after each profile is cut, the cut section will immediately fall to the unloading module, so that the cut profiles fall in sequence, which makes it easy to organize and collect the cut profiles, facilitates subsequent operations, and improves efficiency.

[0014] Preferably, a filter plate is fixedly mounted on the side of the workbench, and the filter plate is arranged at an angle, and a plurality of convex strips with arc-shaped cross sections are arranged at intervals on the surface of the filter plate along its length direction.

[0015] The effect is that when the profile falls on the filter plate and rolls down, the debris on the profile can fall out from the holes on the filter plate.

[0016] Preferably, a plurality of retaining columns are obliquely distributed along the length direction on the surface of the filter plate.

[0017] Preferably, a force storage chamber is provided on the movable platform, and the force storage member is a spring installed in the force storage chamber.

[0018] Preferably, the pressing member is made of rubber, and the pressing surface of the pressing member is an arc-shaped structure.

[0019] By adopting the above technical solution, the beneficial effects of the present invention are as follows: after the clamping part clamps the profile, it pushes the cylinder to drive the sliding plate to move, and the inclined surfaces on the extrusion blocks on both sides will simultaneously push the push rods on both sides. After the push rods drive the extrusion plates to slide, the force storage part is compressed and stored. After the saw cuts the profile, the force of the force storage part is released, and the moving platforms on both sides will respectively drive the two sections of the profile to move a certain distance to both sides at the same time, so as to avoid the end face of the cut profile from contacting the saw cutter. As the saw cutter continues to move, the subsequent multiple profiles are gradually cut in the same way. Therefore, when the saw cutter continues to move or returns, the end face of the profile is prevented from contacting the blade of the saw cutter, which can avoid scratches on the end face of the profile and ensure production quality.

[0020] After the moving column reaches the end of the horizontal section, it enters the curved section and then moves upward along the curved section. As the moving platform moves upward, it lifts the clamping member, releasing the clamping member from its restraint on the profile. After each profile is cut, the cut section immediately falls to the unloading module, allowing the cut profiles to fall sequentially. This facilitates the collection of the cut profiles, facilitating subsequent operations and improving efficiency.

[0021] By providing the filter plate, when the profile falls on the filter plate and in the process of rolling down, debris on the profile can fall through the holes on the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2It is a structural schematic diagram of the workbench of the present invention.

[0024] Figure 3 Schematic diagram of the structure of the support of the present invention.

[0025] Figure 4 It is a cross-sectional view of the carrier plate of the present invention.

[0026] Figure 5 Schematic diagram of the structure of the sliding plate of the present invention.

[0027] Figure 6 It is an exploded schematic diagram of the mounting platform and the moving platform of the present invention.

[0028] Figure 7 Schematic diagram of the structure of the filter plate of the present invention.

[0029] Reference numerals:

[0030] 10. Workbench; 11. Moving assembly; 12. Saw blade; 13. Bracket; 14. Guide roller; 20. Conveyor rack; 30. Filter plate; 31. Raised strip; 32. Stop column; 40. Clamping cylinder; 41. Clamping plate; 50. Lifting cylinder; 51. Mounting plate; 60. Loading plate; 61. Sliding block; 62. Fixing bolt; 63. Mounting table; 64. Moving table; 65. Return spring; 66. Connecting column; 67. Pressing member; 70. Force storage chamber; 71. Force storage member; 72. Extrusion plate; 73. Push rod; 80. Pushing cylinder; 81. Sliding plate; 82. Extrusion block; 83. Horizontal plane; 84. Inclined plane; 90. Driving groove; 91. Moving column; 92. Horizontal section; 93. Arc section. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0032] like Figures 1 to 7 As shown, a specific embodiment of a profile sawing device of the present invention includes a workbench 10, a cutting module, a conveying frame 20, a horizontal clamping module, a vertical clamping module and a blanking module.

[0033] like Figure 1 and Figure 2As shown, the cutting module includes a movable assembly 11 mounted on the inside of a workbench 10. A saw blade 12 is mounted on the movable assembly 11, capable of driving the saw blade 12 for horizontal movement. A drive motor is also mounted on the movable assembly 11 to rotate the saw blade 12. A through hole extending vertically through the upper surface of the workbench 10 is provided at a position corresponding to the saw blade 12. The saw blade 12 extends through the through hole to the top of the workbench 10, thereby enabling the movable assembly 11 to drive the rotating saw blade 12 to cut the profile. The above structures are all prior art and will not be described in detail here.

[0034] The conveyor frame 20 is arranged on one side of the workbench 10. A plurality of conveyor rollers are installed on the workbench 10 to rotate at intervals. The conveyor rollers are used to convey the profile to be processed to the upper surface of the workbench 10. The moving component 11 drives the rotating saw blade 12 to cut the profile.

[0035] In this embodiment, the conveyor frame 20 is configured to convey the profile in the left-right direction, and the moving assembly 11 is configured to drive the saw blade 12 in the forward-backward direction. It should be noted that the profile in this embodiment is a hollow cylindrical tube. In other embodiments, the profile may be of other shapes.

[0036] The saw blade 12 divides the upper surface of the workbench 10 into two sections: the right section (near the conveyor frame 20) is the area to be processed, and the left section is the area where the work is completed. Multiple guide rollers 14 are rotatably mounted on the upper surface of the workbench 10, both in the area to be processed and the area where the work is completed. These guide rollers 14 are horizontally spaced in the left-right direction, with their axial directions aligned with the front-to-back direction. These guide rollers 14 facilitate the movement of the profile.

[0037] Continue to refer Figure 2 The transverse clamping module includes a clamping cylinder 40 fixedly mounted on the upper surface of the workbench 10, and a clamping plate 41 is fixedly mounted on the telescopic portion of the clamping cylinder 40. The clamping cylinder 40 is located near the front end of the area to be processed, and can perform transverse clamping and positioning on the profile transported to the upper surface of the workbench 10. When the profile is transported to the upper surface of the workbench 10, the axial direction of the profile remains horizontal with the left and right directions, the end of the profile in the forward direction is located in the processing completion area, and the part of the profile to be processed is located in the processing area. When the saw blade 12 completes the cutting of the profile once, the cut part will be in the processing completion area and then collected away, and then the profile in the area to be processed will continue to move forward, and this cycle will be repeated until the sawing work of the entire profile is completed.

[0038] The workbench 10 has multiple mounting holes along the front-to-back direction, allowing the clamping cylinder 40 to be adjusted in position, allowing for the front-to-back clamping and positioning of different numbers of profiles. Friction is generated between adjacent profiles, preventing them from moving left and right.

[0039] like Figures 3 to 6 As shown, the vertical clamping module includes a lifting unit, a pressing unit and a pushing unit.

[0040] The lifting unit includes a bracket 13 fixedly mounted on the upper surface of the workbench 10. A lifting cylinder 50 is fixedly mounted on the upper surface of the bracket 13. A mounting plate 51 is fixedly mounted on the telescopic portion of the lifting cylinder 50. The lifting cylinder 50 can drive the mounting plate 51 to move upward and downward. In this embodiment, the mounting plate 51 is a rectangular structure, with its length parallel to the front-to-back direction.

[0041] The clamping units are installed on the mounting plate 51, and there are multiple groups of clamping units. The clamping units are distributed on the mounting plate 51 at intervals along the front-to-back direction. Each group of clamping units corresponds to a profile below, so that multiple groups of clamping units can clamp and fix the multiple profiles below.

[0042] Each set of compression units includes a support plate 60 that slides forward and backward on the bottom of the mounting plate 51. The support plate 60 is rectangular, with its length parallel to the left-right direction. A trapezoidal slider 61 is mounted on the support plate 60, and a matching groove is provided at the bottom of the mounting plate 51. The slider 61 slides within the groove. The slider 61 has a threaded hole extending vertically through it, and a fixing bolt 62 is installed in the threaded hole. By turning the fixing bolt 62, the slider 61 is secured to the support plate 60. This allows the distance between each set of compression units to be adjusted to accommodate profiles of different sizes.

[0043] In this embodiment, four supporting plates 60 are provided along the front-to-back direction, but the number is not limited thereto and is determined according to the number of profiles to be processed.

[0044] Two mounting platforms 63 are symmetrically installed on the left and right sides of the lower surface of the supporting plate 60. A movable platform 64 is installed in the mounting platform 63 for horizontal sliding left and right. The mounting platform 63 and the movable platform 64 are connected by a return spring 65. The two ends of the return spring 65 are fixedly connected to the mounting platform 63 and the movable platform 64 respectively.

[0045] The bottom of the movable platform 64 is fixedly mounted with a connecting column 66, and the bottom of the connecting column 66 is fixedly mounted with a pressing member 67. In this embodiment, the pressing member 67 is made of rubber, and the pressing surface is an arc-shaped structure that matches the profile.

[0046] The two mounting platforms 63 on each carrier plate 60 are located in the area to be processed and the area to be processed, respectively. When the lifting cylinder 50 drives the mounting plate 51 to descend, the pressing members 67 on the left and right sides of each carrier plate 60 can press the two areas (such as Figure 1 ).

[0047] The profile is limited in the horizontal direction by a clamping plate 41, which can push the profile onto the bracket 13. The profile is limited in the vertical direction by a pressing piece 67, so the profile can be firmly restrained and will not move.

[0048] It is particularly emphasized that although the movable platform 64 and the mounting platform 63 are in sliding cooperation, the clamping of the profile by the clamping plate 41 will generate friction between the profiles, that is, a pre-tightening force is applied to the profile. At the same time, there is a return spring 65 between the mounting platform 63 and the movable platform 64, and the return spring 65 will also limit the movement of the movable platform 64, so the clamping member 67 presses the profile downward, and the movable platform 64 will not slide on the mounting platform 63.

[0049] Each movable platform 64 is provided with a force storage component. When the clamping member 67 presses the profile downward, the force storage component stores force through the pushing unit. The force storage component will generate a force to push the movable platform 64 to move. The two movable platforms 64 on each supporting plate 60 will move to both sides respectively, but the force acts on the profile. Since the clamping member 67 is pressed on the profile, the force storage component will not be released. After the saw blade 12 cuts the profile, the force storage component will overcome the friction force (pre-tightening force) generated between the profiles, and the two movable platforms 64 drive the two parts of the cut profile to move to both sides at the same time.

[0050] Continue back Figure 4 The force storage assembly includes a force storage chamber 70 opened on the movable platform 64, and a force storage member 71 is installed in the force storage chamber 70. In this embodiment, the force storage member 71 is a spring. An extrusion plate 72 is slidably installed on the side of the force storage chamber 70 close to the center position, and a push rod 73 is fixedly installed on the side of the extrusion plate 72 away from the force storage member 71. The push rod 73 extends to the outside of the force storage chamber 70, and the push rods 73 on the two movable platforms 64 opposite to each other are arranged oppositely.

[0051] like Figure 5 As shown, the pushing unit includes a pushing cylinder 80 fixedly mounted on the front side of the mounting plate 51 , and a sliding plate 81 is fixedly mounted on the telescopic portion of the pushing cylinder 80 , and the sliding plate 81 is mounted on the mounting plate 51 to slide horizontally back and forth.

[0052] The sliding plate 81 is arranged in the front-to-back direction and is located between the two movable platforms 64. Extrusion blocks 82 are fixedly mounted on both the left and right sides of the sliding plate 81, and the extrusion blocks 82 on the left and right sides of the sliding plate 81 are arranged symmetrically. The extrusion blocks 82 have a horizontal surface 83 and an inclined surface 84 on the side facing away from the sliding plate 81. In the initial state, the push rod 73 abuts against the horizontal surface 83.

[0053] After the pressing member 67 presses the profile downward, it pushes the cylinder 80 to move the sliding plate 81 backward. At this time, the inclined surfaces 84 on the squeezing blocks 82 on both sides simultaneously push the push rods 73 on both sides. The push rods 73 drive the squeezing plates 72 to slide, compressing and accumulating force in the force storage member 71. Because the two opposing pressing members 67 are pressed against the same profile, and the elastic force of the force storage member 71 is less than the friction between the pressing member 67 and the profile, the force storage members 71 on both sides are in a state ready to be released.

[0054] After the saw blade 12 cuts the profile, the force of the force storage member 71 is released. It should be noted that the force of the force storage member 71 is greater than the elastic force of the reset spring 65, and at the same time, the force of the force storage member 71 is greater than the friction force (preload force) generated between the profiles. Therefore, the moving platforms 64 on both sides will respectively drive the two sections of the profile to move a certain distance to the left and right sides at the same time to prevent the end faces of the cut profile from contacting the saw blade 12, and the reset spring 65 will be stretched. Similarly, as the saw blade 12 continues to move, the subsequent multiple profiles are gradually cut in the same way. The guide roller 14 is located at the bottom of the profile and can play a conveying role, facilitating the movement of the profile to both sides.

[0055] In layman's terms, when the profile is cut, the force of the force storage member 71 is released, which will quickly drive the two sections of the profile to move to the left and right sides to avoid contact with the blade of the saw 12, so that when the saw 12 continues to move or returns, it can avoid scratches on the end face of the profile.

[0056] The elastic force of the force storage member 71 is released, so that the distance that the movable platform 64 drives the profile to move can be set as needed, which can be 1-2 cm or longer.

[0057] When the saw blade 12 completes one stroke, cutting all the profiles is complete. The lifting cylinder 50 then raises the carrier plate 60, and the push cylinder 80 resets the slide plate 81. The reset spring 65 resets the movable platform 64, and the profiles are then pushed forward, completing the cycle. It should be noted that the present invention also includes a mechanism for advancing the profiles and a limiting mechanism for the advancing end of the profiles. The limiting mechanism ensures that the rear ends of all the profiles are flush. Both the advancing mechanism and the limiting mechanism are prior art and are not shown in the figures.

[0058] like Figure 6As shown, two drive slots 90 are defined on the inner side of the mounting platform 63 on the left side (the processing area), on both opposing front and rear sides. The two drive slots 90 on each side are horizontally spaced apart. The drive slots 90 include a horizontal section 92 and an arcuate section 93. The horizontal section 92 and the arcuate section 93 are connected, and the arcuate section 93 curves upward.

[0059] Movable posts 91 are provided at positions corresponding to the driving slot 90 on both the front and rear sides of the movable platform 64 , and the movable posts 91 are slidably fitted in the driving slot 90 .

[0060] In the initial state, the movable column 91 is located at the end of the horizontal section 92. As the movable platform 64 slides in the mounting platform 63, when the movable column 91 moves to the end of the horizontal section 92, it will enter the arc section 93 and then move upward along the arc section 93.

[0061] When the movable platform 64 moves upward, it drives the pressing member 67 to lift upward, thereby releasing the restriction on the profile by the pressing member 67 .

[0062] At this time, the distance that the movable platform 64 pushes the profile is set to be greater than the length of the cut profile, so that the cut profile is not restricted in the horizontal and vertical directions, which facilitates the cut profile to fall into the blanking module.

[0063] In layman's terms, after each section of a profile is cut, the cut section will immediately fall to the unloading module, allowing the cut profiles to fall in sequence. This makes it easy to sort and collect the cut profiles, facilitates subsequent operations, and improves efficiency. It avoids the cut profiles falling at the same time, which increases the labor intensity of the workers.

[0064] like Figure 1 and Figure 7 As shown, the unloading module includes a filter plate 30 fixedly mounted on the left side of the workbench 10. The filter plate 30 is tilted, and a lot of debris will remain on the inner side of the cut profile (inner through hole). When the profile falls on the filter plate 30 and rolls down, the debris on the inner side of the profile can fall from the holes on the filter plate 30.

[0065] The filter plate 30 is provided with a plurality of convex strips 31 with arc-shaped cross sections at intervals along its length. When the profile rolls down the filter plate 30 , the profile is shaken, which facilitates the discharge of debris in the profile.

[0066] The filter plate 30 has a plurality of blocking posts 32 (such as Figure 7 ), when the profile is in a horizontal state (the axial direction of the profile is horizontal with the front and back), it is not conducive to the discharge of the debris inside. The blocking column 32 can play a role in moving the profile, so that the profile is transformed into an inclined or vertical state (the axial direction of the profile is consistent with the falling direction), which is convenient for the discharge of the debris inside the profile.

[0067] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A profile sawing device, comprising: A workbench, a saw blade, a clamping cylinder and a clamping plate; the feature is that the workbench is also provided with a vertical clamping module, the vertical clamping module includes a clamping unit and a pushing unit; the clamping unit includes a telescopic part arranged on the workbench, a mounting plate arranged on the telescopic part, a plurality of bearing plates arranged on the mounting plate at horizontal intervals in front and behind, two mounting platforms arranged on the bearing plate on the left and right, a mobile platform connected to the mounting platform by a spring sliding connection, a clamping part fixed on the mobile platform, and a force storage component is provided on the mobile platform, the force storage component includes a force storage part arranged on the mobile platform, a push rod sliding horizontally on the mobile platform; the pushing unit includes a sliding plate sliding horizontally on the mounting plate and located between the left and right mounting platforms, There are multiple extrusion blocks on both sides of the sliding plate, and the extrusion blocks correspond to the push rods respectively. The extrusion blocks have inclined surfaces. The sliding plate moves so that the inclined surfaces of the extrusion blocks push the push rods to slide, and the push rods squeeze the force storage parts to store force; the sawing knife divides the upper surface of the workbench into two parts, the right part is the area to be processed, and the left part is the area where the processing is completed; the clamping cylinder is installed on the upper surface of the workbench, and the telescopic part of the clamping cylinder is fixedly installed with a clamping plate. The clamping cylinder is located near the front end of the area to be processed, and can perform horizontal clamping and positioning on the profiles transported to the upper surface of the workbench; the two mounting platforms on each carrier plate are respectively located in the area to be processed and the area where the processing is completed.

2. A profile sawing device according to claim 1, characterized in that: A trapezoidal slider is provided on the bearing plate, and a sliding groove matching the slider is provided at the bottom of the mounting plate. The slider slides in the sliding groove, and a threaded hole is provided on the slider that passes through the slider from top to bottom, and a fixing bolt is installed in the threaded hole.

3. The profile sawing device according to claim 1, characterized in that: A plurality of guide rollers are rotatably mounted on the upper surface of the workbench, and the guide rollers are horizontally spaced and distributed along the left and right directions.

4. A profile sawing device according to claim 1, characterized in that: Two driving grooves are provided on the two opposite side walls on the inner side of the mounting platform, and the two driving grooves on each side wall are arranged horizontally at intervals on the left and right. The driving groove has a horizontal section and an arc section. The horizontal section is connected to the arc section, and the arc section is bent upward. Moving columns are provided on the front and rear sides of the movable platform at positions corresponding to the driving grooves, and the moving columns are slidably fitted in the driving grooves.

5. The profile sawing device according to claim 1, characterized in that: A filter plate is fixedly mounted on the side of the workbench and is arranged obliquely. A plurality of convex strips with arc-shaped cross sections are arranged at intervals on the surface of the filter plate along its length direction.

6. A profile sawing device according to claim 5, characterized in that: A plurality of blocking columns are obliquely distributed along the length direction on the surface of the filter plate.

7. The profile sawing device according to claim 1, characterized in that: A force storage chamber is provided on the movable platform, and the force storage member is a spring installed in the force storage chamber.

8. The profile sawing device according to claim 1, characterized in that: The pressing piece is made of rubber, and the pressing surface of the pressing piece is an arc-shaped structure.

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