Sectional material tailing sawing mechanism, sawing and milling machine comprising same and sawing method adopting sawing and milling machine

Abstract

The invention discloses a sectional material tailing sawing mechanism which comprises a clamping mechanism facilitating tailing sawing, the clamping mechanism is arranged at a discharging roller path, and the structure of the clamping mechanism at the discharging roller path is the same as that of the clamping mechanism at a feeding roller path. The invention further discloses a sawing and milling machine, the sawing and milling machine comprises the sectional material tailing sawing mechanism, the sawing and milling machine comprises a rack, a gantry frame is arranged on the rack, a power head is arranged on the gantry frame, a saw blade is rotationally arranged on the power head, and the feeding roller path and the discharging roller path are arranged on the two sides of the gantry frame; and a photoelectric sensor is arranged on the rack close to the power head. The invention further discloses a sawing method, the sawing and milling machine and the profiles with different lengths are arranged side by side on a feeding roller path and then are conveyed together, the profiles are sawed once by the steel plate sawing and milling machine as a reference, and then the profiles are successively sawed for a plurality of times according to a set program and then are conveyed to a next procedure to be treated; and when sawing is carried out to the last time, the tailing sawing procedure is carried out. According to the invention, tailings can be conveniently sawn, and wastes can be easily discharged.

Description

Technical Field

[0001] The invention relates to a profile tail material sawing mechanism, a sawing and milling machine comprising the same and a sawing method using the same. Background Art

[0002] When the applicant was sawing the forklift mast (whose cross section is similar to H-shaped, somewhat close to the shape of H-steel) at the production site, it was found that due to the certain width of the clamping mechanism of the profile, and the need to avoid the range of motion of the saw blade and the range of motion of the power head and other active mechanisms between the feeding roller and the discharging roller, there was a large distance between the feeding roller and the discharging roller. Therefore, when sawing the profile mother material to the last cut (that is, sawing the tail material), the last cut position may be located at the clamping mechanism according to the degree setting (that is, according to the required profile sub-material size, such as the minimum size of the forklift mast is 8 00 mm, that is, the smallest sub-material is 800 mm; and the spacing between the feeding roller and the discharging roller at the production site is 675 mm, and the clamping mechanism at the feeding roller itself has a certain width, so the last sawing position is located at the clamping mechanism), that is, the problem of not being able to saw the tailings (that is, the limit position of the clamping mechanism cannot meet the sawing length requirements of the final tailings) occurs. There is no good solution to the existing technology. Generally, the sawing of the tailings, that is, the last sawing of the profile mother material, is done manually (using a small-size clamping mechanism for manual work).

[0003] In addition, forklift masts of different specifications have different lengths but the same shape. Considering the processing efficiency, the applicant uses several forklift masts side by side. Even if the mother materials are of different specifications and sizes, they are uniformly cut once as a benchmark, so the length of the tailings (and the length of the waste after the tailings are sawed) may be different. The waste after the tailings that may be long at the end of the sawing is away from the chip removal mechanism under the saw blade due to the conveying action of the feeding roller and the discharging roller. This easily leads to the problem that the tailings and waste cannot be discharged smoothly (but are conveyed out with the finished product). Patent with publication number CN113909903A: Steel pipe cutting and chamfering device, which can collect waste materials according to the length of the tailings by setting a tailing flipping mechanism, keep the bed clean, reduce safety hazards, and improve the working environment. However, there is still the problem that the tailings are away from the chip removal mechanism under the saw blade due to the conveying action of the feeding roller and the discharging roller, and the tailings and waste cannot be discharged smoothly but are conveyed out with the finished product. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects in the prior art, provide a profile tailing sawing mechanism, add a clamping mechanism for sawing tailings, and solve the problem of tailings being unable to be sawed by setting two clamping mechanisms before and after the saw blade.

[0005] To achieve the above purpose, the technical solution of the present invention is to design a profile tail material sawing mechanism, including a clamping mechanism for facilitating sawing of tail materials, the clamping mechanism is arranged at the discharge roller, and the structure of the clamping mechanism at the discharge roller is the same as that of the clamping mechanism at the loading roller. The clamping mechanism for sawing tail materials is added, and the problem of the tail material being unable to be sawed is solved by setting two clamping mechanisms before and after the saw blade.

[0006] A further technical solution is that the clamping mechanism includes a base slidably arranged on the linear rail, the base is connected to a driving mechanism fixedly connected to the sawing and milling machine frame through a transmission mechanism; a clamping piece for clamping the profile is arranged on the base.

[0007] A further technical solution is that the length direction of the base is perpendicular to the material conveying direction; the clamping member includes two oil cylinders fixedly arranged at both ends of the length direction of the base and arranged opposite to each other, one of the two oil cylinders is a reference oil cylinder and the other is a clamping oil cylinder. Because the edge (side) of the profile has burrs or curved arc protrusions, etc., if the reference oil cylinder is not provided and the clamping mechanism of the prior art is used instead, one side is provided with a fixed backer and the other side is provided with a clamping oil cylinder, even if the side of the profile is against the fixed backer after the feeding roller is installed at the beginning due to the extension of the piston rod of the clamping oil cylinder, when the last cut is made, the clamping mechanism behind the saw blade needs to be moved laterally toward the saw blade to change the clamping mechanism in front of the saw blade to clamp the master material. action, so if a fixed backstop is provided on the clamping mechanism, the side of the fixed backstop facing the clamping cylinder will collide with the burr on the side of the profile when the clamping mechanism behind the saw blade moves horizontally toward the saw blade. Therefore, by using two cylinders relatively arranged on the base of the clamping mechanism, that is, a reference cylinder and a clamping cylinder, it is possible to avoid the clamping mechanism behind the saw blade from colliding or bumping against the burr on the side of the profile (or burrs or arc protrusions, etc.) when approaching the saw blade when switching the front and rear clamping mechanisms.

[0008] A further technical solution is that the driving mechanism is a reduction motor, and the transmission mechanism is a screw-nut mechanism; the output shaft of the reduction motor is fixedly connected to the screw of the screw-nut mechanism, the base is fixedly connected to the nut of the screw-nut mechanism, and the nut is slidably arranged on the frame of the sawing and milling machine; the linear rails are provided in a pair and the two linear rails are arranged on the outside of the discharge roller and the loading roller.

[0009] A further technical solution is that a tailing waste turning mechanism and a supporting frame are sequentially arranged between the feeding roller and the discharging roller along the material conveying direction; at least two rotatable rollers are arranged on the supporting frame, and the upper plane tangent to the rollers is flush with the upper surface of the rollers of the feeding roller; the upper surface of the rollers of the feeding roller is flush with the upper surface of the rollers of the discharging roller; the tailing waste turning mechanism includes a turning cylinder fixedly arranged on the frame of the sawing and milling machine, the cylinder body of the turning cylinder is fixedly connected to the frame through a folded connecting plate, the exposed end of the piston rod of the turning cylinder is hinged to the driving block, and the upper end of the driving block is fixedly connected to the extension plate slidingly arranged under the turning plate The extension plate is smaller than the flip plate in size, and a pair of relatively arranged brackets for sliding the extension plate are fixedly arranged on the lower surface of the flip plate. The lower end of the driving block is hinged with the folding connecting plate, and the folding connecting plate is fixedly connected to the frame. The exposed end of the piston rod of the telescopic cylinder driving the extension plate is fixedly connected to the extension plate through the connecting block, and the cylinder body of the telescopic cylinder is fixedly connected to the lower surface of the flip plate. A rectangular opening is arranged on the extension plate to avoid interfering with the movement of the extension plate; two flip cylinders are provided and work synchronously, and the telescopic cylinder is located between the two flip cylinders; the flipping direction of the flip plate is to discharge the tailings and waste to the side edge of the discharging roller. The tailings and waste material flipping mechanism and the supporting rack fill the gap between the loading roller and the discharging roller, avoiding the situation in the prior art where there is a large gap between the loading roller and the discharging roller, which requires the clamping position of the tailings to be more towards the middle of the tailings (otherwise the clamping position is too close to the edge of the tailings, and there is a large gap between the loading roller and the discharging roller, and the safety of the tailings after clamping and conveying cannot be guaranteed, and the hanging end of the tailings may not be conveyed to the upper surface of the discharging roller, or even the tailings may rotate at the clamping position). The tailings and waste material flipping mechanism can prevent the tailings and waste from hitting the linear rail or hard rail close to the sawing and milling machine frame during discharge.

[0010] The technical solution provided by the present invention is a sawing and milling machine, comprising the profile tail material sawing mechanism, the sawing and milling machine comprises a frame, a gantry frame is arranged on the frame, a power head is arranged on the gantry frame, a saw blade is rotatably arranged on the power head, the loading roller and the discharging roller are arranged on both sides of the gantry frame; a photoelectric sensor is arranged on the frame near the power head. The sawing and milling machine here has a chip removal mechanism arranged under the power head, which cooperates with the tail material waste turning mechanism to realize the waste discharge.

[0011] The technical solution also provided by the present invention is a sawing method, which adopts the sawing and milling machine, and the sawing steps are: profiles of different lengths are placed side by side on the feeding roller and transported together, and are sawed once by the steel plate sawing and milling machine as a reference, and then the profiles are sawed several times in succession according to the set program and transported to the next process for processing; when the sawing is to the last cut, the sawing process of the tail material is carried out.

[0012] A further technical solution is that the sawing process of the tail material is as follows: after the clamping mechanism at the loading roller moves to the extreme position close to the saw blade, the clamping mechanism at the discharging roller also moves to the extreme position close to the saw blade, and then the clamping mechanism at the discharging roller clamps the profile, the clamping mechanism at the loading roller releases the clamped profile, and then the clamping mechanism at the discharging roller moves to the set position according to the program setting to saw the tail material.

[0013] A further technical solution is that, after the sawing process of the tailings, a clamping mechanism at the discharge track is retracted to push the waste after the tailings are sawed back to the top of the tailings waste turning mechanism; after pushing the waste tailings back to the tailings waste turning mechanism, the waste after the tailings are sawed is turned over to ensure that the waste falls into the chip removal mechanism; the maximum length of the profile is 18 meters.

[0014] The advantages and beneficial effects of the present invention are: a clamping mechanism for sawing tailings is added, and the problem of the tailings not being able to be sawed is solved by setting two clamping mechanisms in front and behind the saw blade.

[0015] Because the edge (side) of the profile has burrs or curved arc protrusions, etc., if a reference cylinder is not set and the clamping mechanism of the prior art is used instead, one side is set with a fixed backer and the other side is set with a clamping cylinder, even if the side of the profile is pressed against the fixed backer after the feeding roller is installed at the beginning because the piston rod of the clamping cylinder is extended, when sawing to the last cut, the clamping mechanism behind the saw blade needs to move horizontally toward the saw blade to change the clamping mechanism in front of the saw blade to clamp the master material action, so if a fixed backstop is provided on the clamping mechanism, the side of the fixed backstop facing the clamping cylinder will collide with the burr on the side of the profile when the clamping mechanism behind the saw blade moves horizontally toward the saw blade. Therefore, by using two cylinders relatively arranged on the base of the clamping mechanism, that is, a reference cylinder and a clamping cylinder, it is possible to avoid the clamping mechanism behind the saw blade from colliding or bumping against the burr on the side of the profile (or burrs or arc protrusions, etc.) when approaching the saw blade when switching the front and rear clamping mechanisms.

[0016] The tailings and waste material flipping mechanism and the supporting rack fill the gap between the loading roller and the discharging roller, avoiding the situation in the prior art where there is a large gap between the loading roller and the discharging roller, which requires the clamping position of the tailings to be more towards the middle of the tailings (otherwise the clamping position is too close to the edge of the tailings, and there is a large gap between the loading roller and the discharging roller, and the safety of the tailings after clamping and conveying cannot be guaranteed, and the hanging end of the tailings may not be conveyed to the upper surface of the discharging roller, or even the tailings may rotate at the clamping position). The tailings and waste material flipping mechanism can prevent the tailings and waste from hitting the linear rail or hard rail close to the sawing and milling machine frame during discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of a first embodiment of a sawing and milling machine including a profile tail material sawing mechanism of the present invention; Figure 2 yes Figure 1 Side view of Figure 3 yes Figure 1 Bottom view of Figure 4 It is a partial schematic diagram showing only the flip mechanism and its vicinity; Figure 5 yes Figure 4 A top view of Figure 6 yes Figure 4 Middle AA section view; Figure 7 yes Figure 4 Middle Q direction schematic diagram; Figure 8 yes Figure 7 Schematic diagram of the middle K direction; Fig. 9 yes Figure 4 A three-dimensional schematic diagram of the flipping mechanism; Fig.10 yes Fig. 9 A schematic diagram from another perspective; Fig.11 is a schematic diagram of a second embodiment of the present invention; Fig.12 yes Fig.11 Side view of Fig.13 yes Fig.11 Bottom view of .

[0018] In the figure: 1. Discharge roller; 2. Loading roller; 3. Linear rail; 4. Base; 5. Frame; 6. Reference cylinder; 7. Clamping cylinder; 8. Reducer motor; 9. Screw nut mechanism; 10. Support rack; 11. Tail material and waste material turning mechanism; 12. Turning cylinder; 13. Folding connecting plate; 14. Driving block; 15. Turning plate; 16. Extension plate; 17. Bracket; 18. Telescopic cylinder; 19. Connecting block; 20. Rectangular opening; 21. Gantry frame; 22. Power head; 23. Chip removal mechanism; 24. Airbag; 25. Baffle; 26. Block; 27. Push cylinder; 28. Columnar airbag. DETAILED DESCRIPTION

[0019] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0020] Embodiment 1: Figures 1 to 10As shown, the present invention is a profile tail sawing mechanism, including a clamping mechanism arranged at a discharge roller 1, and the structure of the clamping mechanism at the discharge roller 1 is the same as the structure of the clamping mechanism at the loading roller 2; the clamping mechanism includes a base 4 slidably arranged on a linear rail 3, and the base is connected to a driving mechanism fixedly connected to a sawing and milling machine frame 5 through a transmission mechanism; a clamping member for clamping the profile is arranged on the base 4.

[0021] The length direction of the base 4 is perpendicular to the material conveying direction; the clamping member includes two oil cylinders arranged opposite to each other on the base of the clamping mechanism, namely, a reference oil cylinder 6 and a clamping oil cylinder 7; The driving mechanism is a reduction motor 8, and the transmission mechanism is a screw nut mechanism 9; the output shaft of the reduction motor is fixedly connected to the screw of the screw nut mechanism 9, the base 4 is fixedly connected to the nut of the screw nut mechanism, and the nut is slidably arranged on the frame of the sawing and milling machine; the linear rail 3 is provided with a pair and the two linear rails are arranged on the outer sides of the discharge roller 1 and the loading roller 2; A tailings and waste turning mechanism 11 and a support frame 10 are sequentially arranged between the feeding roller 2 and the discharging roller 1 along the material conveying direction; at least two rotatable rollers are arranged on the support frame 10, and the upper plane tangent to the rollers is flush with the upper surface of the rollers of the feeding roller; the upper surface of the rollers of the feeding roller is flush with the upper surface of the rollers of the discharging roller; the tailings and waste turning mechanism 11 includes a turning cylinder 12 fixedly arranged on the frame of the sawing and milling machine, the cylinder body of the turning cylinder is fixedly connected to the frame 5 through a folded connecting plate 13, the exposed end of the piston rod of the turning cylinder 12 is hinged to the driving block 14, and the upper end of the driving block 14 is fixedly connected to the extension plate 16 slidingly arranged under the turning plate 15, the extension plate is smaller in size than the turning plate, and the turning plate A pair of brackets 17 arranged opposite to each other for sliding the extension plate 16 are fixedly arranged on the lower surface of the plate 15, the lower end of the driving block 14 is hinged to the folding connecting plate 13, the folding connecting plate is fixedly connected to the frame, the exposed end of the piston rod of the telescopic cylinder 18 driving the extension plate is fixedly connected to the extension plate 16 through the connecting block 19, the cylinder body of the telescopic cylinder is fixedly connected to the lower surface of the flip plate but avoids the part of the extension plate, a rectangular opening 20 is arranged on the extension plate to avoid interfering with the movement of the extension plate, and the upper end of the driving block is fixedly connected to the flip plate after passing through the opening; the flip cylinders are provided with two and work synchronously, and the telescopic cylinder is located between the two flip cylinders; the flipping direction of the flip plate is to discharge the tailings and waste materials to the side edge of the discharge roller; A sawing and milling machine comprises the profile tail material sawing mechanism, the sawing and milling machine comprises a frame 5, a gantry frame 21 is arranged on the frame, a power head 22 is arranged on the gantry frame 21, a saw blade is rotatably arranged on the power head, the loading roller 2 and the discharging roller 1 are arranged on both sides of the gantry frame 21; a photoelectric sensor is arranged on the frame near the power head.

[0022] A sawing method, using the sawing and milling machine, the sawing steps are: profiles of different lengths are placed side by side on a feeding roller and transported together, and are sawed once by a steel plate sawing and milling machine as a reference, and then the profiles are sawed several times in succession according to a set program and transported to the next process for processing; when sawing to the last cut, the clamping mechanism at the feeding roller (i.e. in front of the saw blade along the conveying direction of the profile) moves to the extreme position close to the saw blade, and the clamping mechanism at the discharging roller (i.e. behind the saw blade) also moves to the extreme position close to the saw blade, and then the clamping mechanism at the discharging roller clamps the profile, and the clamping mechanism at the feeding roller releases the clamped profile, and then the clamping mechanism at the discharging roller moves to the set position according to the program setting (i.e. the required sawing length) to saw the tail material.

[0023] The clamping mechanism is driven by the screw nut mechanism and slides on the linear rail / hard rail. After the photoelectric sensor senses the incoming material position, the loading roller stops transporting (or other mechanisms driving the loading stop transporting after receiving the information). The forklift mast (or other profiles) is a number of forklift masts arranged side by side. Different models and sizes are cut first as a reference, so the length of the waste after the tail material is sawed may be different. After being flipped by the flipping mechanism (with a tail material length extension plate, perpendicular to the conveying direction), it falls into the chip removal mechanism 23) After the cutting process of the tailings, there is also a process of retracting the clamping mechanism at the discharge roller to push the waste after the tailings are cut back to the top of the tailings waste turning mechanism; after pushing the waste tailings back to the tailings waste turning mechanism, the waste after the tailings are cut is turned to ensure that the waste falls into the chip removal mechanism; the maximum length of the profile is 18 meters; The forklift mast is composed of several side-by-side, different models and sizes (the length of the master material is different, the longest is 18 meters) are cut by a steel plate sawing and milling machine (although it is called a sawing and milling machine, it is actually still a sawing machine or a sawing machine, but the surface accuracy of the steel plate after sawing can reach the surface accuracy of milling, so the applicant calls it a sawing and milling machine, which means a sawing machine (or sawing machine) that can achieve the surface accuracy of milling. For details on how to achieve the sawing accuracy to the milling accuracy, please refer to the applicant's previous application for announcement number CN116372260B Patent) first cuts one knife as a reference, and then cuts the mother material several times according to the program design (for example, the first knife is one meter, the second knife is two meters) to complete the sawing of several finished products, and then transports them to the next process for processing; when flipping, the two flip cylinders act at the same time, and the drive block rotates around the hinge point, thereby driving the flip plate to rotate. During this process, the upper end of the drive block slides a short distance at the opening, and the telescopic cylinder acts when the flip cylinder acts, thereby driving the extension plate to extend, so as to prevent the tilted waste from hitting the linear rail during the falling process.

[0024] Embodiment 2: The difference from Embodiment 1 is that Figures 11 to 13As shown, the clamping mechanism includes a pair of upper and lower airbags 24 respectively arranged at the feeding roller 2 and the discharging roller 1, and the airbags 24 are arranged close to the power head 22; a baffle 25 for limiting the lateral expansion of the airbag 24 is fixedly arranged on the sawing and milling machine frame or the sawing and milling machine gantry frame, and the baffles are provided with four pairs, and each pair of baffles is respectively located on both sides of the airbag (referring to the front and rear sides of the airbag along the material conveying direction); a stopper 26 fixedly connected to the baffle 25 is arranged between each pair of baffles 25 and at the end of the airbag away from the profile; a wear-resistant layer is provided on the surface of the airbag facing the profile (to avoid burrs on the surface of the profile from puncturing the airbag).

[0025] Through two pairs of air bags 24 arranged up and down, the width of the air bag is much smaller than the original clamping mechanism (i.e., the base slidably arranged on the linear rail, and the structure of the clamping oil cylinder arranged on the base), and baffles are arranged on both sides of the air bag to effectively prevent the air bag from expanding horizontally, ensuring that the air bag expands in the upward and downward directions after being inflated, and then a stopper is arranged at the end of the air bag away from the profile, which can effectively promote the air bag to expand in the direction of the profile, so that the air bag is tightly against the profile when the profile needs to be clamped. According to the program setting, when the profile is driven by the driving mechanism and transported to the required sawing position, the driving mechanism stops running and the air bag is inflated; after the air bag is against the profile, the power head moves to saw. Due to the setting of the baffle, the saw blade can be prevented from cutting the air bag, and due to the setting of the baffle and the use of the air bag, the width of the entire clamping mechanism is very narrow, which effectively avoids the problem of not being able to saw the tail material. Since the airbag is used, the width of the clamping mechanism can be made very narrow, so that the pair of airbags arranged up and down at the discharge roller can actually be changed to be arranged at a place very close to the power head (for example, arranged on the crossbeam on the gantry frame close to the power head {the power head is slidably arranged on the crossbeam}), as long as it does not interfere with the movement of the power head. Therefore, by setting two pairs of airbags arranged up and down (that is, four airbags, one pair each located in front and behind the saw blade), the support frame can be omitted, which can avoid the existing technology that there is a large gap between the feeding roller and the discharge roller, which cannot ensure the safety of the tail after clamping and conveying, and the situation that the suspended end of the tail cannot be conveyed to the upper surface of the discharge roller, or even the situation that the tail rotates at the clamping position). In addition, since the airbag is used, it is clamped from the plate surface of the profile or steel plate to be sawed (or the upper and lower surfaces; that is, the clamping position has changed), so it also avoids the problem of solving the burrs on the side of the profile that would exist in the clamping from the side of the profile in the previous embodiment; A sawing and milling machine, comprising the profile tail material sawing mechanism, the sawing and milling machine comprises a frame, a gantry frame is arranged on the frame, a power head is arranged on the gantry frame, a saw blade is rotatably arranged on the power head, and the feeding roller and the discharging roller are arranged on both sides of the gantry frame; a photoelectric sensor is arranged on the frame near the power head; a pushing cylinder 27 is arranged at a position of the feeding roller 2 near the power head 22; a cylinder pushing mechanism is arranged at the end of the feeding roller to realize the discharge of tail material and waste; the chip removal mechanism originally arranged below the power head is omitted, and the discharge action is simple and the mechanism is simplified after such arrangement; A sawing method, using the sawing and milling machine, the sawing steps are: profiles of different lengths are placed side by side on a feeding roller and transported together, and are sawed once by a steel plate sawing and milling machine as a reference, and then the profiles are sawed several times in succession according to the set program and transported to the next process for processing; when the sawing is to the last cut, the tail material sawing process is carried out. The tail material sawing process is: according to the program setting (that is, the required sawing length), the clamping mechanism, that is, the airbag at the feeding roller (that is, in front of the saw blade along the conveying direction of the profile) is inflated (after receiving the instruction, that is, after the profile moves to the set position) to clamp the profile, and the clamping mechanism, that is, the airbag at the discharge roller or set at the crossbeam (that is, behind the saw blade) is also inflated to clamp the profile, and then the power head moves to start the last cut of sawing, and after the sawing is completed, the clamping mechanism, that is, the airbag behind the saw blade is deflated, while the airbag in front of the saw blade is not deflated, so as to avoid the tail material waste behind the saw blade being driven away (by the feeding roller) The problem of being unable to be discharged due to movement is solved; subsequently, the air cylinder 27 is pushed to act and the airbag is deflated at the same time (or the airbag has just deflated a little {a more preferred solution is: after deflation, it is no longer deflated}, the air cylinder is pushed to act, that is, the airbag no longer clamps the profile, and the cylinder is pushed to act immediately to prevent the feeding roller from rolling and driving the waste forward. Since the cylinder is pushed to act immediately, the waste is pushed out of the rack), and the tail waste previously blocked by the airbag is pushed out of the rack to realize the discharge of the tail waste; since the clamping mechanism is no longer a sliding arrangement, the linear rail is also omitted, and there is no problem of the waste hitting the linear rail when being discharged.(Even if there is no support rack, the profile behind the saw blade will not fall into the gap between the feeding roller and the discharging roller because of the pair of air bags arranged above and below behind the saw blade and their proximity to the power head; if the discharging roller cannot convey the last piece of tailings cut by sawing, the baffles on both sides of the air bags arranged above and below behind the saw blade will no longer be fixed but will be changed to sliding settings {the baffles will slide on the crossbeam, so that when the baffles slide to the extreme position away from the power head, it is equivalent to helping the tailings after sawing to be conveyed for a distance, which can effectively avoid the gap between the feeding roller and the discharging roller}, so that the air bags will not be deflated after sawing, and the baffles will move toward the object The tail material is transported in the material conveying direction, and then when the tail material is above the discharge roller and is far enough from the saw blade to drive the tail material transportation only by the rotation of the discharge roller, the air bag is deflated and no longer clamps the tail material of the profile, so that the tail material is conveyed by the drive of the discharge roller; the exposed end of the piston rod of the push cylinder is fixedly connected with a push block, and the height of the push block is slightly lower than the thickness of the profile being sawed, so that once the air bag is deflated, there is no need to worry about contact with the air bag when the push cylinder is moved; a number of rollers arranged at intervals are arranged on the feeding roller, and several of the rollers are driving wheels, which are driven by the reduction motor to rotate to realize the function of conveying the profile; no roller is arranged directly below the baffle in front of the saw blade; the profile The width of the upper baffle plate can be wider than the roller frame, while the width of the baffle plate 25 below the profile is smaller than the width of the roller frame so that the upper and lower air bags can clamp the profile after expansion; in order to prevent the waste from hitting the roller frame of the feeding roller when pushing out the waste, a number of columnar air bags are provided below the rollers of the feeding roller, and these columnar air bags 28 are slightly lower than the highest point of the air bags between the two baffle plates below after inflation, and the straight line formed by the vertices of these columnar air bags 28 after inflation is set at an angle of less than 90° to the material conveying direction {a more preferred solution is to set two rows of columnar air bags, and the vertices of the two rows of columnar air bags after inflation are connected to form an X shape}; after such a setting When the pushing cylinder is activated, the inflated columnar airbag prevents the pushed waste from tilting and falling. When the center of gravity of the waste reaches the outside of the roller frame, it tilts and falls and detaches from the roller frame, that is, leaves the sawing and milling machine. And because the airbags clamped up and down are only slightly deflated, the length direction of the waste being sawed when the pushing cylinder is activated is basically perpendicular to the material conveying direction. Therefore, this arrangement is also convenient for the discharge of waste, unlike the previous embodiment, which has to worry about the problem that the waste may be tilted with the material conveying direction and is not easy to discharge {that is, the problem that the waste will rotate when being pushed}). The top of the columnar airbag 28 can also be rotatably provided with a roller to facilitate the discharge of waste.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. Profile tail material sawing mechanism, characterized in that: It comprises a clamping mechanism which is convenient for sawing the tail material, the clamping mechanism is arranged at the material discharging roller, and the structure of the clamping mechanism at the material discharging roller is the same as that of the clamping mechanism at the material loading roller.

2. The profile tailing sawing mechanism according to claim 1, characterized in that: The clamping mechanism comprises a base slidably arranged on the linear rail, the base is connected to a driving mechanism fixedly connected to the sawing and milling machine frame through a transmission mechanism; a clamping piece for clamping the profile is arranged on the base.

3. The profile tailing sawing mechanism according to claim 2, characterized in that: The length direction of the base is perpendicular to the material conveying direction; the clamping member comprises two oil cylinders fixedly arranged at two ends of the length direction of the base and arranged opposite to each other, one of the two oil cylinders is a reference oil cylinder and the other is a clamping oil cylinder.

4. The profile tailing sawing mechanism according to claim 3, characterized in that: The driving mechanism is a reduction motor, and the transmission mechanism is a screw-nut mechanism; the output shaft of the reduction motor is fixedly connected to the screw of the screw-nut mechanism, the base is fixedly connected to the nut of the screw-nut mechanism, and the nut is slidably arranged on the frame of the sawing and milling machine; a pair of linear rails are provided, and the two linear rails are arranged on the outer sides of the discharge roller and the loading roller.

5. The profile tailing sawing mechanism according to claim 4, characterized in that: A tailings and waste turning mechanism and a support frame are arranged in sequence between the feeding roller and the discharging roller along the material conveying direction; at least two rotatable rollers are arranged on the support frame, and the upper plane tangent to the rollers is flush with the upper surface of the rollers of the feeding roller; the upper surface of the rollers of the feeding roller is flush with the upper surface of the rollers of the discharging roller; the tailings and waste turning mechanism includes a turning cylinder fixedly arranged on the frame of the sawing and milling machine, the cylinder body of the turning cylinder is fixedly connected to the frame through a folded connecting plate, the exposed end of the piston rod of the turning cylinder is hinged to the driving block, the upper end of the driving block is fixedly connected to the extension plate slidingly arranged under the turning plate, and the extension plate ruler The folding plate is smaller than the flip plate in one inch, and a pair of relatively arranged brackets for sliding the extension plate are fixedly arranged on the lower surface of the flip plate. The lower end of the driving block is hinged with the folding connecting plate, and the folding connecting plate is fixedly connected to the frame. The exposed end of the piston rod of the telescopic cylinder driving the extension plate is fixedly connected to the extension plate through the connecting block, and the cylinder body of the telescopic cylinder is fixedly connected to the lower surface of the flip plate. A rectangular opening is arranged on the extension plate to avoid interfering with the movement of the extension plate; two flip cylinders are provided and work synchronously, and the telescopic cylinder is located between the two flip cylinders; the flipping direction of the flip plate is to discharge the tailings and waste materials to the side edge of the discharging raceway.

6. A sawing and milling machine, characterized in that: It comprises the profile tail material sawing mechanism as described in any one of claims 1 to 5, the sawing and milling machine comprises a frame, a gantry frame is arranged on the frame, a power head is arranged on the gantry frame, a saw blade is rotatably arranged on the power head, the loading roller and the discharging roller are arranged on both sides of the gantry frame; a photoelectric sensor is arranged on the frame near the power head.

7. A sawing method, characterized in that: When using the sawing and milling machine as described in claim 6, the sawing steps are as follows: profiles of different lengths are placed side by side on the loading roller and transported together, and are sawed once by the steel plate sawing and milling machine as a reference, and then the profiles are sawed several times in succession according to the set program and transported to the next process for processing; when the last cut is made, the sawing process of the tail material is carried out.

8. The sawing method according to claim 7, characterized in that: The sawing process of the tail material is as follows: after the clamping mechanism at the loading roller moves to the limit position close to the saw blade, the clamping mechanism at the discharging roller also moves to the limit position close to the saw blade, and then the clamping mechanism at the discharging roller clamps the profile, the clamping mechanism at the loading roller releases the clamped profile, and then the clamping mechanism at the discharging roller moves to the set position according to the program setting to saw the tail material.

9. The sawing method according to claim 8, characterized in that: After the sawing process of the tail material, there is a process in which the clamping mechanism at the discharge roller track retracts to push the waste material after the tail material is sawed back to just above the tail material waste turning mechanism; after pushing the waste material back to the tail material waste turning mechanism, the waste material after the tail material is sawed is turned over to ensure that the waste material falls into the chip removal mechanism; the maximum length of the profile is 18 meters.

Images