Automatic feed track saw and automatic feed method thereof

Abstract

The application discloses an automatic feeding type track saw and an automatic feeding method thereof, and belongs to the technical field of cutting equipment. The automatic feeding type track saw mainly comprises a track saw body, the track saw body comprises a base and a rotating saw body assembly, one end of the rotating saw body assembly is rotationally connected with the base, the base is provided with an automatic feeding mechanism for driving the track saw body to advance along a guide rail, the other end of the base close to the rotating saw body assembly is fixedly connected with a cutting depth limiting mechanism for limiting the rotating angle of the rotating saw body assembly, and the base is provided with an obstacle avoidance assembly for sensing an obstacle and controlling the automatic feeding mechanism to stop after the obstacle is sensed. The cutting depth limiting mechanism is used for automatically limiting the rotating angle of the rotating saw body assembly, manual pressing is not needed, the sawing depth is accurately controlled, the consistency of sawing quality is ensured, and the automatic feeding mechanism is used, manual pushing is not needed, automatic sawing operation is realized, and the working efficiency and the sawing precision are greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of cutting equipment technology, and more specifically, relates to an automatic feed rail saw and its automatic feed method. Background Technology

[0002] A rail saw is a common cutting tool, often used for cutting materials such as wood and metal. Existing rail saws typically require the operator to manually push the saw body along the rail to feed the material. For example, patent CN221754893U discloses a rail saw that cuts using manual feeding. However, manual feeding has the following problems: 1. It is difficult for the operator to maintain consistent force and speed, easily leading to uneven cut surfaces and affecting cutting quality. In situations requiring high cutting precision, manual feeding is difficult to meet the accuracy requirements; 2. Manual operation is labor-intensive.

[0003] Patent publication number CN215145237U discloses a gear-driven sawing device, including a frame mounted on a track, a sawing mechanism and a moving mechanism mounted on the frame; the moving mechanism includes a moving reducer and a driving wheel assembly; the driving wheel assembly includes a driving shaft and driving gears, the driving shaft being rotatably connected to the frame; the driving gears are connected to the moving reducer, mounted on the driving shaft, and mesh with a rack mounted on the track, driving the frame to move on the track. This sawing device uses a gear-driven transmission method, making the sawing device stable and accurate in operation, and improving transmission efficiency.

[0004] While the aforementioned patents solve the problem of automatic forward movement of the sawing device, these are large pieces of equipment operating in a limited environment, making them unsuitable for portable transport. Furthermore, they lack the ability to switch between manual and automatic feed, and the function of automatically adjusting the cutting depth. Currently, there is no rail saw capable of both automatic feed and automatic cutting depth limiting. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an automatic feed rail saw and its automatic feed method. Through the cutting depth limiting mechanism, the rotation angle of the rotating saw body assembly is automatically limited without manual pressing, thereby accurately controlling the sawing depth and ensuring the consistency of sawing quality. At the same time, in conjunction with the automatic feed mechanism, no manual pushing is required to realize automated sawing operation, which greatly improves work efficiency and sawing accuracy.

[0006] The automatic feed rail saw includes a rail saw body, which includes a base and a rotating saw body assembly. One end of the rotating saw body assembly is rotatably connected to the base. The base is provided with an automatic feed mechanism for driving the rail saw body forward along the guide rail. The other end of the base near the rotating saw body assembly is fixedly connected with a cutting depth limiting mechanism for limiting the rotation angle of the rotating saw body assembly. The base is provided with an obstacle avoidance component for sensing an obstacle and controlling the automatic feed mechanism to stop.

[0007] Preferably, the automatic feeding mechanism includes a fixed base, on which a feeding power mechanism is fixedly connected. A feeding gear is fixedly connected to the output end of the feeding power mechanism, and a feeding rack that meshes with the feeding gear is fixedly connected to a guide rail. The output end of the feeding power mechanism passes through the fixed base and is fixedly connected to a mounting plate. A limiting platform that slides with the end face of the feeding rack is fixedly connected to the mounting plate, and the feeding gear is fixedly installed at the end of the mounting plate.

[0008] Preferably, the obstacle avoidance assembly includes a swing seat and a second limit switch, with an elastic component two provided between the swing seat and the second limit switch, and a mounting plate fixedly connected to the first fixed seat, with the swing seat rotatably connected to the mounting plate.

[0009] Preferably, a limit switch for sensing the guide rail is fixedly connected to the bottom of the fixed base, and the limit switch is connected to the feed power mechanism; a damper is fixedly connected to the front end of the rotating saw assembly, and the moving end of the damper cooperates with the fixed base.

[0010] Preferably, the obstacle avoidance component is a proximity switch.

[0011] Preferably, the rotating saw assembly is provided with a feed speed control button and a feed switch, which are respectively connected to the automatic feed mechanism.

[0012] Preferably, the rotating saw assembly is fixedly connected to a sawing power mechanism and a sawing mechanism. The sawing mechanism includes a protective cover, inside which a saw blade is provided. The saw blade is fixedly connected to the output end of the sawing power mechanism, and a dust suction pipe is connected to the protective cover.

[0013] Preferably, the cutting depth limiting mechanism includes a second fixed base, which is fixedly connected to the base. A servo motor is fixedly connected to the second fixed base, and an elastic hook is fixedly connected to the output end of the servo motor. The base is provided with a cutting depth limiting switch for starting the servo motor. A cutting depth limiting rack that engages with the elastic hook is fixedly connected to the rotating saw assembly. The rotating saw assembly is provided with an adjustable cutting depth limiting contact rod that matches the cutting depth limiting switch.

[0014] Preferably, the base is provided with a cutting depth adjuster corresponding to the cutting depth limit contact rod. The cutting depth adjuster includes an auxiliary support ruler, the bottom of which is fixedly connected to the base. A cutting depth adjusting slider is slidably connected to the auxiliary support ruler. An auxiliary spring piece that cooperates with the auxiliary support ruler is fixedly connected inside the cutting depth adjusting slider. The auxiliary spring piece and the auxiliary support ruler are respectively provided with cooperating toothed structures. A limiting bolt for fixing the auxiliary spring piece is threadedly connected to the cutting depth adjusting slider. A cutting depth limit switch is installed on the top of the cutting depth adjusting slider.

[0015] The automatic feeding method, using the aforementioned automatic feed rail saw, includes the following steps:

[0016] S1. Place the plate to be cut on the bottom of the guide rail, adjust the cutting depth of the rotating saw assembly according to the thickness of the plate, and adjust the height of the cutting depth adjusting slider and the cutting depth limit contact rod in sync with the cutting depth, so that when the rotating saw assembly is pressed down to the appropriate position, the cutting depth limit contact rod can contact the cutting depth limit switch.

[0017] S2. Press down on the rotating saw assembly. The rotating saw assembly rotates relative to the base, and the cutting depth limit rack descends accordingly. When the rotating saw assembly is pressed down to the end, the cutting depth limit contact rod contacts the cutting depth limit switch. The cutting depth limit switch activates the servo motor, which drives the elastic hook to rotate, so that the elastic hook is locked in the tooth groove of the corresponding cutting depth limit rack, thus completing the positioning of the rotating saw assembly.

[0018] S3. When automatic cutting is required, start the automatic feeding mechanism and the sawing power mechanism. The automatic feeding mechanism drives the track saw body to move forward automatically along the guide rail. At the same time, the sawing power mechanism drives the saw blade to automatically cut the board.

[0019] S4. When manual cutting is required, turn off the automatic feed mechanism and manually push the track saw body forward to cut;

[0020] S5. When an obstacle is encountered in front, the obstacle avoidance component senses the obstacle and controls the sawing power mechanism and automatic feeding mechanism to stop. At the same time, the servo motor is activated, causing the elastic hook to disengage from the cutting depth limit rack, and the rotating saw body assembly to reverse and reset.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. The addition of a cutting depth limiting mechanism and an automatic feeding mechanism addresses the issue that existing technologies primarily rely on manual real-time pressure to limit the sawing depth, resulting in poor sawing accuracy. The cutting depth limiting mechanism automatically limits the rotation angle of the rotating saw assembly, eliminating the need for manual pressure and thus precisely controlling the sawing depth, ensuring consistent sawing quality. Simultaneously, in conjunction with the automatic feeding mechanism, no manual pushing is required, achieving automated sawing operations and significantly improving work efficiency and sawing accuracy.

[0023] 2. The cutting depth limiting mechanism precisely limits the rotation angle of the rotating saw body assembly. Together with the cutting depth limiting contact rod and cutting depth limiting switch, it accurately adjusts the sawing depth according to the thickness of the board material, adapting to the cutting of boards of different thicknesses. It has a wide range of applications and ensures the stability of cutting accuracy and quality.

[0024] 3. An obstacle avoidance component is added. During the automatic feeding sawing process, the obstacle avoidance component can detect obstacles in time and control the sawing and feeding mechanisms to stop. The servo motor also reverses and resets the rotating saw assembly to prevent collision damage to the equipment and ensure the safety of the operators.

[0025] 4. The rotating saw assembly is equipped with a feed speed adjustment button and a feed switch, which can flexibly adjust the feed speed as needed, start and stop automatic feed, and freely switch between automatic and manual cutting to meet diverse cutting needs and improve the convenience and efficiency of operation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the rear structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the front structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the automatic feeding mechanism;

[0029] Figure 4 This is a schematic diagram showing the installation of the mounting base and the mounting plate;

[0030] Figure 5 This is a schematic diagram showing the installation of the automatic feeding mechanism and the base;

[0031] Figure 6 This is a schematic diagram of the cutting depth limiting mechanism and the cutting depth limiting rack;

[0032] Figure 7 This is a schematic diagram of the cutting depth limiting mechanism;

[0033] Figure 8 This is a schematic diagram of the elastic hook structure;

[0034] Figure 9 This is a partial structural schematic diagram of the present invention;

[0035] Figure 10 A schematic diagram showing the engagement of the cutting depth limiting mechanism and the cutting depth limiting rack when the rotating saw body assembly is pressed down;

[0036] Figure 11 A schematic diagram showing the front side of the invention engaging with the guide rail when the saw assembly is lifted by rotation;

[0037] Figure 12A schematic diagram showing the rear side of the invention engaging with the guide rail when the saw assembly is lifted by rotation;

[0038] Figure 13 A schematic diagram showing the front side of the invention engaging with the guide rail when the saw body assembly is pressed down;

[0039] Figure 14 A schematic diagram showing the rear side of the invention engaging with the guide rail when the saw assembly is pressed down.

[0040] Figure 15 This is a schematic diagram showing the fit between the damper, the rotating saw body assembly, and the fixed base.

[0041] Figure 16 A schematic diagram showing the interaction between the depth of cut adjuster, the base, and the depth of cut limit contact rod;

[0042] Figure 17 This is a schematic diagram showing the disassembled depth of cut adjuster.

[0043] In the diagram, 1. Rail saw body; 101. Feed speed control button; 102. Feed switch; 103. Cutting depth limit contact rod; 104. Cutting depth limit switch; 105. Base; 106. Sawing power mechanism; 107. Handle; 108. Guide seat; 1081. Cutting depth adjustment rod; 109. Arc-shaped guide post; 110. Cutting depth gauge; 111. Elastic component one;

[0044] 2. Guide rail; 3. Feed rack; 4. Automatic feed mechanism; 401. Protective cover one; 402. Feed power mechanism; 403. Mounting plate; 404. Limiting platform; 405. Feed gear; 406. Mounting plate; 407. Limit switch one; 408. Swing seat; 409. Elastic component two; 410. Limit switch two; 411. Fixed seat one;

[0045] 5. Cutting depth limiting mechanism; 501. Protective cover II; 502. Fixed base II; 503. Elastic hook; 5031. Center plate; 5032. Arc-shaped spring; 5033. Locking hook; 504. Servo motor;

[0046] 6. Cutting depth limiting rack; 7. Rotating support base; 8. Cutting depth limiting block; 801. Adjusting bolt; 9. Sawing mechanism; 901. Saw blade; 902. Protective cover; 903. Dust suction pipe;

[0047] 10. Damper; 11. Depth of cut adjuster; 1101. Depth of cut adjustment slider; 1102. Threaded hole; 1103. Slide groove; 1104. Limit bolt; 1105. Elastic component three; 1106. Auxiliary spring; 1107. Auxiliary support ruler; 1108. Mounting groove. Detailed Implementation

[0048] The present invention will be further described below with reference to the accompanying drawings:

[0049] The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise explicitly specified and limited, the terms "setting," "installing," "connecting," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] Example 1:

[0051] like Figures 1 to 17 As shown, an automatic feed rail saw includes a rail saw body 1, which is the core component for sawing operations. During the sawing process, the entire rail saw body 1 moves forward along the guide rail 2. The rail saw body 1 includes a base 105 and a rotating saw body assembly. One end of the rotating saw body assembly is rotatably connected to the base 105, meaning the rotating saw body assembly can rotate flexibly relative to the base 105. When cutting plates of different thicknesses, the sawing depth of the saw blade can be adjusted by adjusting the rotation angle of the rotating saw body assembly, thereby adapting to different sawing requirements.

[0052] like Figure 11 As shown, the base 105 is equipped with an automatic feeding mechanism 4 for driving the track saw body 1 forward along the guide rail 2. Driving the automatic feeding mechanism 4 enables the track saw body 1 to move automatically along the guide rail 2 without manual pushing, realizing automated sawing operations and greatly improving work efficiency and sawing accuracy. A cutting depth limiting mechanism 5 is fixedly connected to the other end of the base 105 near the rotating saw assembly to limit the rotation angle of the rotating saw assembly. In existing technologies, the cutting depth is mainly limited by manual real-time pressure, resulting in poor sawing accuracy. The cutting depth limiting mechanism 5 automatically limits the rotation angle of the rotating saw assembly, thereby precisely controlling the cutting depth, ensuring consistent sawing quality, and providing conditions for automatic sawing. The base 105 is equipped with an obstacle avoidance component for sensing obstacles and controlling the automatic feeding mechanism 4 to stop. The obstacle avoidance component enables automatic stopping, preventing the saw blade from accidentally cutting obstacles, thus avoiding saw blade damage and accidental injury to obstacles, greatly improving the safety of automatic sawing.

[0053] like Figures 2 to 5 As shown, the automatic feeding mechanism 4 includes a fixed base 411, which serves as the mounting base for the entire automatic feeding mechanism 4, providing stable support for other components. A rotating support 7 is fixedly connected to the base 105. The rotating support 7 is rotatably connected to the rotating saw assembly via a shaft. During installation, the fixed base 411 is fixedly connected to the rotating support 7, making the structure of the invention more compact without hindering the structure and rotation of the rotating saw assembly.

[0054] A feed power mechanism 402 is fixedly connected to the fixed base 411. The feed power mechanism 402 is provided with a protective cover 401 to protect the feed power mechanism 402. The feed power mechanism 402 is preferably a DC geared motor. The DC geared motor is connected to the adjustable transformer built into the track saw body 1. The feed power mechanism 402 has a compact structure and stable and strong power output. By adjusting the speed and torque of the feed power mechanism 402, it can be precisely adjusted according to different sawing requirements to adapt to different working scenarios.

[0055] The output end of the feed power mechanism 402 passes through the fixed base 411 and is fixedly connected to the mounting plate 403. A limiting platform 404, which slides on the end face of the feed rack 3, is fixedly connected to the mounting plate 403. A feed gear 405 is fixedly connected to the end of the mounting plate 403. The limiting platform 404 serves to limit and guide the feed gear 405, preventing it from shifting during transmission and ensuring the stability and accuracy of the transmission. A feed rack 3, meshing with the feed gear 405, is fixedly connected to the guide rail 2. Through the gear and rack transmission method, the rotational motion of the feed power mechanism 402 is converted into the linear motion of the track saw body 1, achieving precise feed control and possessing the advantages of high transmission efficiency and high precision.

[0056] In addition, the automatic feeding mechanism 4 can also be directly driven by a linear motor. In this embodiment, the obstacle avoidance component includes a swing seat 408 and a limit switch 410. An elastic component 409 is provided between the swing seat 408 and the limit switch 410. The elastic component 409 is preferably a metal spring. A mounting plate 406 is fixedly connected to the fixed seat 411. The mounting plate 406 is used to install the swing seat 408 and the protective cover 401. The protective cover 401 is fixedly connected to the mounting plate 406 by fasteners. The upper part of the swing seat 408 is rotatably connected to the mounting plate 406 by a pin. One end of the swing seat 408 abuts against the elastic component 409, and the other end of the swing seat 408 abuts against the end face of the fixed seat 411, thereby limiting the swing seat 408 to rotate only towards the elastic component 409. When in use, if there is an obstacle in front, as the track saw body 1 moves forward, the swing seat 408 comes into contact with the obstacle. The obstacle will push the swing seat 408 to swing, compressing the elastic component 409. The elastic component 409 comes into contact with the limit switch 410, triggering the limit switch 410, thereby controlling the feed power mechanism 402 to stop and avoid damage to the equipment.

[0057] To further improve sawing safety, in this embodiment, limit switch 410 simultaneously controls the servo motor 504 in the sawing power mechanism 106 and the cutting depth limit mechanism 5, so that the sawing power mechanism 106 stops and the saw blade stops rotating. At the same time, the servo motor 504 reverses, so that the cutting depth limit mechanism 5 no longer limits the rotating saw body assembly.

[0058] In addition, the obstacle avoidance component can also use a proximity switch instead of the above solution. The proximity switch can detect the presence of obstacles without contacting them. When the proximity switch detects an obstacle ahead, it will quickly send a signal to stop the sawing power mechanism 106 and the automatic feeding mechanism 4, thus improving the timeliness and accuracy of obstacle avoidance.

[0059] like Figure 3 As shown, a limit switch 407 for sensing the guide rail 2 is fixedly connected to the bottom of the fixed base 411. The limit switch 407 is connected to the feed power mechanism 402. That is, during the sawing process, the limit switch 407 always senses the guide rail 2. When the rail saw body 1 is lifted or moves to the end of the guide rail 2, that is, when the rail saw body 1 is separated from the guide rail 2, the limit switch 407 will immediately detect it and transmit a signal to the feed power mechanism 402, causing it to stop working, thus ensuring the safe operation of the equipment.

[0060] like Figure 2 As shown, the rotating saw assembly is equipped with a feed speed control button 101 and a feed switch 102, which are respectively connected to the automatic feed mechanism 4. The operator can control the feed speed control button 101 to adjust the feed speed of the track saw body 1 according to the actual sawing situation. By controlling the feed switch 102, the start and stop of the automatic feed mechanism 4 can be controlled, allowing for selective automatic or manual sawing, making operation convenient and quick.

[0061] like Figure 2 and Figure 9 As shown, a sawing power mechanism 106 and a sawing mechanism 9 are fixedly connected to the rotating saw assembly. The sawing power mechanism 106 typically uses a high-speed motor, which can drive the saw blade 901 to rotate at high speed, achieving efficient sawing operations. The sawing mechanism 9 includes a protective cover 902, inside which the saw blade 901 is housed. The saw blade 901 is fixedly connected to the output end of the sawing power mechanism 106, and a dust suction pipe 903 is connected to the protective cover 902. The protective cover 902 not only protects the operator's safety by preventing the saw blade from flying and causing injury, but also reduces the spread of dust generated during the sawing process. The dust suction pipe 903 connected to the protective cover 902 can be connected to a dust collection device to promptly remove the dust generated during the sawing process, improving the working environment.

[0062] like Figures 6 to 8As shown, the cutting depth limiting mechanism 5 includes a second fixed base 502, which is fixedly connected to the base 105. The second fixed base 502 serves as the supporting foundation for the entire cutting depth limiting mechanism 5. A servo motor 504 is fixedly connected to the second fixed base 502. An elastic hook 503 is fixedly connected to the output end of the servo motor 504. The elastic hook 503 includes a central disk 5031, on which an arc-shaped spring piece 5032 is fixedly connected. A latch 5033 is fixed to the end of the arc-shaped spring piece 5032, and the latch 5033 engages with the cutting depth limiting rack 6. This structure gives the elastic hook 503 a certain degree of elasticity and flexibility, allowing it to better engage with the cutting depth limiting rack 6.

[0063] The fixed base 502 is provided with a protective cover 501. The fixed base 502, the servo motor 504 and the elastic hook 503 are all located inside the protective cover 501. The protective cover 501 is fixedly connected to the bottom. The protective cover 501 has a groove that matches the elastic hook 503 and the cutting depth limiting rack 6. The protective cover 501 is used to protect the cutting depth limiting mechanism 5 and the cutting depth limiting rack 6.

[0064] The base 105 is equipped with a cutting depth limit switch 104 for activating the servo motor 504. A cutting depth limit rack 6, which engages with the elastic hook 503, is fixedly connected to the rotating saw assembly. The rotating saw assembly is also equipped with an adjustable cutting depth limit contact rod 103 that matches the cutting depth limit switch 104. Figure 9 As shown, an arc-shaped guide post 109 and a cutting depth gauge 110 are fixed on the base 105. The cutting depth gauge 110 is also arc-shaped, and its upper end is fixedly connected to the arc-shaped guide post 109. A guide seat 108 is fixed on the rotating saw assembly. Both the cutting depth gauge 110 and the arc-shaped guide post 109 pass through the guide seat 108 and slide in cooperation with it. An elastic component 111 is fitted on the arc-shaped guide post 109. The elastic component 111 is a spring. The upper end of the elastic component 111 abuts against the bottom of the guide seat 108, and the lower end of the elastic component 111 abuts against the lower part of the arc-shaped guide post 109. The elastic component 111 allows the rotating saw assembly to automatically form a certain angle with the base 105 without any limit or external force, so that the saw blade does not contact the board material, forming... Figure 8 The structure shown.

[0065] A cutting depth limiting block 8 is slidably connected to the cutting depth gauge 110, and the cutting depth limiting block 8 is used to preset the cutting depth. An adjusting bolt 801, which mates with the cutting depth gauge 110, is threaded onto the cutting depth limiting block 8. Loosening the adjusting bolt 801 adjusts the position of the cutting depth limiting block 8, and tightening the adjusting bolt 801 positions the cutting depth limiting block 8, thus completing the preset cutting depth. A cutting depth adjusting rod 1081 is threaded onto the guide seat 108. The cutting depth adjusting rod 1081 mates with the cutting depth limiting block 8. Adjusting the length of the cutting depth adjusting rod 1081 allows for further fine-tuning of the cutting depth, facilitating precision machining such as grooving and ensuring the accuracy of the cutting depth. During operation, when the saw body assembly is rotated and pressed down, the cutting depth adjusting rod 1081 abuts against the cutting depth limiting block 8 to determine the actual cutting depth.

[0066] The cutting depth limit contact rod 103 works in conjunction with the cutting depth adjustment rod 1081. After determining the actual cutting depth, the length of the cutting depth limit contact rod 103 is adjusted synchronously so that when the cutting depth adjustment rod 1081 abuts against the cutting depth limit block 8, the cutting depth limit contact rod 103 can also contact the cutting depth limit switch 104. During operation, the operator adjusts the height of the cutting depth limit block 8, the cutting depth adjustment rod 1081, and the cutting depth limit contact rod 103 according to the thickness of the board. When the rotating saw assembly is pressed down to the appropriate position, the cutting depth limit contact rod 103 contacts the cutting depth limit switch 104, triggering the servo motor 504 to work, causing the elastic hook 503 to engage in the tooth groove of the corresponding cutting depth limit rack 6, thus completing the positioning of the rotating saw assembly.

[0067] Example 2:

[0068] like Figures 15 to 17 As shown, an automatic feed rail saw has a damper 10 fixedly connected to the front end of the rotating saw assembly, near the rotating support 7. The damper 10 is existing technology and commercially available. The moving end of the damper 10 cooperates with the fixed base 411. In use, the moving end of the damper 10 contacts the fixed base 411. When the rotating saw assembly is pressed down, the moving end of the damper 10 extends and abuts against the fixed base 411, so that the damper 10 can absorb and dissipate the vibration energy during sawing, reduce the shaking of the saw body, reduce the noise caused by vibration, protect the internal components of the rail saw, extend the service life of the equipment, and also avoid the decrease in cutting accuracy caused by vibration.

[0069] When the rotating saw assembly completes its downward cutting and then lifts to its reset position, the damper 10 limits its rotational speed, making its movement smoother and more controllable. This prevents operational loss of control due to rapid rotation and reset of the rotating saw assembly, avoids violent shaking due to inertia, improves operational safety, and ensures the stability and quality of the cutting process. Furthermore, the damper 10, in conjunction with the cutting depth limiting mechanism 5, provides resistance after the rotating saw assembly has been pressed into position, keeping the saw body in a stable position, enhancing positioning accuracy, preventing displacement of the saw body due to forces or other factors during cutting, and ensuring consistent cutting depth and precision.

[0070] like Figure 16 and Figure 17 As shown, the base 105 is equipped with a cutting depth adjuster 11 corresponding to the cutting depth limit contact rod 103. The cutting depth adjuster 11 cooperates with the cutting depth limit contact rod 103 to adjust the cutting depth of the saw blade more quickly. Specifically, the cutting depth adjuster 11 includes an auxiliary support ruler 1107, which serves as the skeleton of the cutting depth adjuster 11. The bottom of the auxiliary support ruler 1107 is fixedly connected to the base 105 to form a rigid support base. A cutting depth adjustment slider 1101 is slidably connected to the auxiliary support ruler 1107. The cutting depth adjustment slider 1101 has a groove 1103 that cooperates with the auxiliary support ruler 1107. That is, the auxiliary support ruler 1107 provides a precise sliding track for the cutting depth adjustment slider 1101, limiting its movement to only the height direction of the auxiliary support ruler 1107, and avoiding lateral deviation from interfering with the cutting depth control.

[0071] An auxiliary spring 1106, which mates with an auxiliary support ruler 1107, is fixedly connected to the depth-of-cut slider 1101. Both the auxiliary spring 1106 and the auxiliary support ruler 1107 have mating toothed structures, forming a reliable positioning and locking system. When the depth-of-cut slider 1101 moves to the target position, the auxiliary spring 1106, under its own elastic force, engages in the toothed groove of the auxiliary support ruler 1107, creating a mechanical engagement and temporarily fixing the depth-of-cut slider 1101. A threaded hole 1102 is provided on the depth-of-cut slider 1101, and a limiting bolt 1104 for fixing the auxiliary spring 1106 is threaded into the threaded hole 1102. An elastic component 1105, preferably a spring, is sleeved between the limiting bolt 1104 and the depth-of-cut slider 1101. The operator applies additional tightening force by tightening the limit bolt 1104. At this time, the elastic component 1105 is in a compressed state, which makes the toothed structure of the auxiliary spring 1106 and the auxiliary support ruler 1107 mesh more tightly, improves the positioning reliability, prevents it from being displaced due to external forces such as vibration and impact when the track saw is working, and ensures the stability of the cutting depth. It is especially suitable for long-term, high-load cutting operations.

[0072] The cutting depth adjusting slider 1101 has a mounting groove 1108 on its top. The cutting depth limit switch 104 is installed in the mounting groove 1108 on the top of the cutting depth adjusting slider 1101. When the saw body assembly is rotated and pressed down, the cutting depth limit contact rod 103 contacts the cutting depth limit switch 104, thereby realizing the activation control of the cutting depth limit mechanism 5. Everything else is the same as in Embodiment 1.

[0073] Example 3:

[0074] like Figures 9 to 14 As shown, the automatic feeding method, using the automatic feeding rail saw in Embodiment 2, includes the following steps:

[0075] S1. Preparation. Place the sheet material to be cut at the bottom of guide rail 2, ensuring accurate positioning and preventing movement during sawing. The operator adjusts the cutting depth of the rotating saw assembly according to the sheet material thickness to ensure the required cutting depth.

[0076] The method for adjusting the depth of cut is as follows:

[0077] 1.1 Loosen the adjusting bolt 801, and slide the cutting depth limiting block 8 along the cutting depth ruler 110 to the corresponding position according to the cutting depth requirement, so that the upper end of the cutting depth limiting block 8 is aligned with the corresponding cutting depth scale line, and tighten the adjusting bolt 801 to fix the cutting depth limiting block 8 in this position, thereby realizing the preset cutting depth.

[0078] 1.2 Rotating the cutting depth adjustment rod 1081 allows for fine-tuning of the preset cutting depth to ensure its accuracy. When the saw body assembly is pressed down, the cutting depth adjustment rod 1081 abuts against the upper end of the cutting depth limiting block 8.

[0079] 1.3 Adjust the cutting depth adjuster 11 and loosen the limiting bolt 1104 on the cutting depth adjusting slider 1101. At this time, the auxiliary spring 1106 and the toothed structure of the auxiliary support ruler 1107 are no longer tightly locked. The operator can manually push the cutting depth adjusting slider 1101 to slide along the auxiliary support ruler 1107. During the sliding process, the auxiliary spring 1106 jumps between the toothed grooves of the auxiliary support ruler 1107 under its own elasticity, providing clear adjustment feedback to help the operator determine the slider position. When the slider moves to near the preset cutting depth, tighten the limiting bolt 1104 to further secure the auxiliary spring 1106, so that it is tightly engaged with the toothed structure of the auxiliary support ruler 1107, thus completing the fixation of the cutting depth adjusting slider 1101.

[0080] 1.4 Rotate the cutting depth limit contact rod 103 to fine-tune the cutting depth limited by the cutting depth adjuster 11 so that when the cutting depth adjustment rod 1081 abuts against the upper end of the cutting depth limit block 8, the cutting depth limit contact rod 103 can contact the cutting depth limit switch 104. The cutting depth limit contact rod 103 is used to trigger the cutting depth limit switch 104 on the one hand, and on the other hand, it plays a role in shock absorption and limit, so as to prevent the rotating saw assembly from vibrating or shaking during the sawing process, which would affect the cutting quality.

[0081] S2. Automatic positioning of the rotating saw assembly. Pressing down on the rotating saw assembly causes it to rotate relative to the base 105. As the rotating saw assembly rotates, the cutting depth limiting rack 6 descends. When the rotating saw assembly is fully depressed, the cutting depth limiting contact rod 103 contacts the cutting depth limiting switch 104. The cutting depth limiting switch 104 immediately activates the servo motor 504, which drives the elastic hook 503 to rotate. Due to the elasticity and flexibility of the elastic hook 503, the latch 5033 on the elastic hook 503 can smoothly engage in the tooth groove of the corresponding cutting depth limiting rack 6, completing the automatic positioning of the rotating saw assembly. After the rotating saw assembly is positioned, the accuracy and stability of the sawing depth are ensured, improving the sawing quality.

[0082] S3. Automatic Cutting. In this embodiment, the rotating saw assembly is equipped with a handle 107, which has a sawing switch. When automatic cutting is required, the operator activates the feed switch 102, which controls the automatic feed mechanism 4 to start. Simultaneously, the operator activates the sawing power mechanism 106 via the sawing switch. The feed power mechanism 402 in the automatic feed mechanism 4 drives the feed gear 405 to rotate. The feed gear 405 meshes with the feed rack 3, causing the track saw body 1 to automatically advance along the guide rail 2. At the same time, the sawing power mechanism 106 drives the saw blade 901 to rotate at high speed, automatically cutting the board. During the cutting process, the operator can adjust the feed speed of the track saw body 1 according to the actual situation using the feed speed adjustment button 101 to ensure the cutting effect.

[0083] S4. Manual Cutting. In special circumstances, such as when fine-tuning the cutting accuracy or when the automatic feed of the equipment malfunctions and manual cutting is required, the operator can turn off the automatic feed mechanism 4 and manually push the track saw body 1 forward to cut. Manual cutting can rely on the operator's experience and skills to better handle some complex cutting needs.

[0084] S5. Obstacle Avoidance. When an obstacle is encountered, the obstacle avoidance mechanism immediately activates. Whether the swing seat 408 triggers the limit switch 410 or the obstacle is detected by the proximity switch, the sawing power mechanism 106 and the automatic feed mechanism 4 will be quickly stopped to prevent the equipment from colliding with the obstacle and being damaged. At the same time, the servo motor 504 starts, driving the elastic hook 503 to rotate and disengage it from the cutting depth limit rack 6. At this time, the damper 10 acts as a buffer, causing the rotating saw assembly to slowly reverse and reset, avoiding inertial vibration and preparing for the next cut. The obstacle avoidance mechanism improves the safety and reliability of the equipment and reduces the damage rate.

[0085] Finally, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic feed track saw comprising a track saw body (1) including a base (105) and a rotary saw body assembly, one end of the rotary saw body assembly being rotatably connected to the base (105), characterized in that: The base (105) is provided with an automatic feeding mechanism (4) for driving the rail saw body (1) forward along the guide rail (2). The other end of the base (105) near the rotating saw body assembly is fixedly connected with a cutting depth limiting mechanism (5) for limiting the rotation angle of the rotating saw body assembly. The base (105) is provided with an obstacle avoidance component for sensing an obstacle and controlling the automatic feeding mechanism (4) to stop. The cutting depth limiting mechanism (5) includes a fixed base (502), which is fixedly connected to the base (105). A servo motor (504) is fixedly connected to the fixed base (502), and an elastic hook (503) is fixedly connected to the output end of the servo motor (504). A cutting depth limiting switch (104) for starting the servo motor (504) is provided on the base (105). A cutting depth limiting rack (6) that engages with the elastic hook (503) is fixedly connected to the rotating saw assembly. A cutting depth limiting contact rod (103) that can be adjusted and matches the cutting depth limiting switch (104) is provided on the rotating saw assembly.

2. The self-feeding rail saw according to claim 1, characterized in that: The automatic feeding mechanism (4) includes a fixed base (411), a feeding power mechanism (402) is fixedly connected to the fixed base (411), a feeding gear (405) is fixedly connected to the output end of the feeding power mechanism (402), and a feeding rack (3) that meshes with the feeding gear (405) is fixedly connected to the guide rail (2); the output end of the feeding power mechanism (402) passes through the fixed base (411) and is fixedly connected to the mounting plate (403), a limiting platform (404) that slides with the end face of the feeding rack (3) is fixedly connected to the mounting plate (403), and the feeding gear (405) is fixedly installed at the end of the mounting plate (403).

3. The self-feeding rail saw according to claim 2, characterized in that: The obstacle avoidance assembly includes a swing seat (408) and a limit switch (410). An elastic component (409) is provided between the swing seat (408) and the limit switch (410). A mounting plate (406) is fixedly connected to a fixed seat (411). The swing seat (408) is rotatably connected to the mounting plate (406).

4. The self-feeding band saw as claimed in claim 2, wherein: The bottom of the fixed base (411) is fixedly connected to a limit switch (407) for sensing the guide rail (2), and the limit switch (407) is connected to the feed power mechanism (402); the front end of the rotating saw assembly is fixedly connected to a damper (10), and the moving end of the damper (10) cooperates with the fixed base (411).

5. The self-feeding band saw as claimed in claim 1, wherein: The obstacle avoidance component is a proximity switch.

6. The self-feeding band saw of claim 1, wherein: The rotating saw assembly is equipped with a feed speed control button (101) and a feed switch (102), which are respectively connected to the automatic feed mechanism (4).

7. The self-feeding band saw of claim 1, wherein: The rotating saw assembly is fixedly connected to a sawing power mechanism (106) and a sawing mechanism (9). The sawing mechanism (9) includes a protective cover (902), and a saw blade (901) is provided inside the protective cover (902). The saw blade (901) is fixedly connected to the output end of the sawing power mechanism (106), and a dust suction pipe (903) is connected to the protective cover (902).

8. The self-feeding band saw as claimed in any one of claims 1 to 7, characterized in that: The base (105) is provided with a cutting depth adjuster (11) corresponding to the cutting depth limit contact rod (103). The cutting depth adjuster (11) includes an auxiliary support ruler (1107). The bottom of the auxiliary support ruler (1107) is fixedly connected to the base (105). A cutting depth adjusting slider (1101) is slidably connected on the auxiliary support ruler (1107). An auxiliary spring piece (1106) that cooperates with the auxiliary support ruler (1107) is fixedly connected inside the cutting depth adjusting slider (1101). The auxiliary spring piece (1106) and the auxiliary support ruler (1107) are respectively provided with a toothed structure that cooperates with each other. A limiting bolt (1104) for fixing the auxiliary spring piece (1106) is threadedly connected to the cutting depth adjusting slider (1101). The cutting depth limit switch (104) is installed on the top of the cutting depth adjusting slider (1101).

9. An automatic feeding method using the automatic feeding type track saw according to claim 8, characterized in that, Includes the following steps: S1. Place the plate to be cut on the bottom of the guide rail (2), adjust the cutting depth of the rotating saw assembly according to the plate thickness, and adjust the height of the cutting depth adjusting slider (1101) and the cutting depth limiting contact rod (103) in sync with the cutting depth so that when the rotating saw assembly is pressed down to the appropriate position, the cutting depth limiting contact rod (103) can contact the cutting depth limiting switch (104). S2. Press down the rotating saw assembly. The rotating saw assembly rotates relative to the base (105). The cutting depth limiting rack (6) descends accordingly. When the rotating saw assembly is pressed down to the position, the cutting depth limiting contact rod (103) contacts the cutting depth limiting switch (104). The cutting depth limiting switch (104) activates the servo motor (504). The servo motor (504) drives the elastic hook (503) to rotate, so that the elastic hook (503) is locked in the tooth groove of the corresponding cutting depth limiting rack (6), thus completing the positioning of the rotating saw assembly. S3. When automatic cutting is required, start the automatic feeding mechanism (4) and the sawing power mechanism (106). The automatic feeding mechanism (4) drives the track saw body (1) to move forward automatically along the guide rail (2). At the same time, the sawing power mechanism (106) drives the saw blade (901) to automatically cut the board. S4. When manual cutting is required, turn off the automatic feed mechanism (4) and manually push the track saw body (1) forward to cut; S5. When an obstacle is encountered in front, the obstacle avoidance component senses the obstacle and controls the sawing power mechanism (106) and the automatic feeding mechanism (4) to stop. At the same time, the servo motor (504) is started, causing the elastic hook (503) to disengage from the cutting depth limit rack (6) and rotate the saw body assembly to reverse and reset.

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