Automatic feeding steel plate circular saw cutting system

Abstract

The invention belongs to the technical field of steel plate automatic feeding, and discloses an automatic feeding steel plate circular saw cutting system which comprises a feeding mechanism, a cutting device, a discharging mechanism, a pushing mechanism installed on the feeding mechanism and used for pushing a steel plate to move, and a control mechanism arranged on the side of the feeding mechanism. The discharging mechanism automatically conveys the sawed steel to a designated position; the feeding mechanism is composed of a servo motor and a rolling wheel, and accurate feeding of steel is achieved. Through cooperation of structures such as the limiting piece, the positioning piece and the pressing block, the fixing and positioning effect of the flexible steel plate is improved when the flexible steel plate is cut, and the situation that the cutting precision is reduced due to vibration caused by the flexibility characteristic of the flexible steel plate is prevented; specifically, the power pressing assembly drives the transverse plate and the pressing plate to move downwards, the transverse plate and the pressing plate are transversely limited through downward pressing and elastic pulling of the movable part, and therefore the positioning effect on the flexible steel plate is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of automatic steel plate feeding, and specifically relates to an automatic feeding steel plate circular saw cutting system. Background Art

[0002] Steel plate circular saw cutting is a processing technology that uses a disc-shaped saw blade to cut steel plates at high speed, mainly relying on the rotation of the saw blade and the downward pressure to separate the material. However, the existing steel plate circular saw cutting systems still have drawbacks in actual use: when the existing cutting systems cut flexible steel plates, due to the low rigidity of the flexible steel plates, they are more likely to undergo elastic or plastic deformation during stress release. As a result, when cutting flexible steel plates, warping is likely to occur at both ends. Warping will cause relative displacement between the steel plate and the cutting path, resulting in the cutting line deviating from the preset trajectory, thereby affecting the subsequent cutting accuracy. Moreover, the existing systems rely heavily on manual operations, which greatly reduces the overall work efficiency.

[0003] Therefore, there is an urgent need for an efficient, precise, and safe automatic feeding sawing steel system. Summary of the Invention

[0004] To solve the problems raised in the above background art, the present invention provides an automatic feeding steel plate circular saw cutting system.

[0005] To achieve the above object, the present invention provides the following technical solution: an automatic feeding steel plate circular saw cutting system, which includes a feeding mechanism, a cutting device, a discharging mechanism, a pusher mechanism installed on the feeding mechanism for pushing the steel plate to move, and a control mechanism arranged on the side of the feeding mechanism; The discharging mechanism automatically transports the sawn steel to a designated position; The feeding mechanism consists of a servo motor and rollers to achieve precise feeding of the steel; and is equipped with a photoelectric sensor to detect the position of the steel in real time to ensure the feeding accuracy.

[0006] Preferably, the cutting device includes a backing plate, a sawing mechanism, and a pressing plate, and further includes: A positioning module, which is installed at the four corners of the top surface of the backing plate; A pressure application module, which is arranged in the middle area between two positioning modules; Among them, a power pressing component for connecting the pressing plate and the positioning module and driving the pressing plate to move downward is installed on the backing plate; The positioning module includes a positioning member and a cross plate sleeved outside the positioning member and fixedly connected to the power pressing component. One side of the positioning member is hinged to the pressure application module through a movable member, and a limiting member for tightly pressing both sides of the steel plate is installed outside the lower end of the positioning member; The pressure application module includes a pressure application block and a circular plate movably clamped on the pressure application block. The pressure application block is rotatably connected with a rubber roller shaft through a second rotating shaft, and both ends of the second rotating shaft are sleeved with straight gears. The outer wall of the straight gear is meshed with a rack fixedly connected to the outer wall of the circular plate.

[0007] Preferably, the positioning member includes a block body. A hydraulic oil tank is opened in the inner cavity of the block body. The upper end of the inner cavity of the hydraulic oil tank is movably connected with a piston block. The piston block is elastically connected with the block body through a second elastic member. The top of the piston block abuts against a cross plate sleeved outside the block body. The limiting member includes a pressing plate movably clamped on the block body and communicated with the hydraulic oil tank. The pressing plate is elastically connected with the block body through a third elastic member.

[0008] Preferably, one end of the cross plate is hinged to the movable member. The cross plate is elastically connected with the block body through a first elastic member.

[0009] Preferably, the movable member is composed of an arc plate hinged at one end to the cross plate and a spring telescopic member slidably clamped in the inner cavity of the arc plate and fixedly connected to the block body. One end of the arc plate away from the block body is hinged to the pressure application module, and a belt drive assembly is fixedly connected to one side of the arc plate.

[0010] Preferably, the pressure application block is hinged to the movable member. A driving motor is fixedly connected to one end of the pressure application block away from the belt drive assembly. A first rotating shaft is fixedly connected to the middle of the circular plate. One end of the first rotating shaft located in the inner cavity of the pressure application block is movably connected to the inner wall of the pressure application block.

[0011] Preferably, the pressure application block is in a "b" shape with an upward arc surface, and the bottom surface of the pressure application block is made of rubber.

[0012] Preferably, a plurality of racks are provided and are intermittently fixedly connected to the outer wall of the circular plate. One end of the first rotating shaft away from the pressure application block is fixedly connected to the belt drive assembly.

[0013] Preferably, the power pressing assembly is composed of a connecting frame, a hydraulic mechanism, a fixing plate and a positioning column. The bottom of the positioning column is fixedly connected to the pressing plate. The lower end of the positioning column is fixedly connected to a fixing plate located above the pressing plate. Both ends of the connecting frame are respectively connected to the cross plate and the fixing plate. One side of the connecting frame is fixedly connected to the hydraulic mechanism.

[0014] Preferably, the sawing mechanism uses a circular saw and is equipped with a cooling system and a sawing force feedback system. A slide rail driving mechanism for sliding the sawing mechanism is installed on the backing plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the cooperation of structures such as a limiting member, a positioning member, and a pressing block, the present invention improves the fixed positioning effect of the flexible steel plate during cutting, prevents it from vibrating due to its own flexible characteristics, and thereby reduces the cutting accuracy. Specifically, the power pressing assembly drives the cross plate and the pressing plate to move downward. By the downward pressure and elastic pulling of the movable member, the flat surface of the pressing block presses on the surfaces at both ends of the steel plate to press it, and at the same time, the second elastic member pushes the hydraulic oil in the hydraulic oil tank to make it fill and press against the abutting plate, so that the side wall of the abutting plate presses against the side of the steel plate to perform lateral limiting on it, thereby improving the positioning effect of the flexible steel plate.

[0016] Through the cooperation of structures such as a pressing block, a circular plate, and a rubber roller shaft, the present invention greatly reduces the phenomenon that the two ends of the flexible steel plate are prone to warping during stress release due to the low rigidity of the flexible steel plate during cutting. Specifically, after the cutting of the flexible steel plate is completed, the drive motor drives the pressing block to flip, so that the arc surface of the pressing block contacts the surface of the steel plate, and through the belt drive assembly, its output end drives the straight gear, the second rotating shaft, and the rubber roller shaft to rotate through the first rotating shaft, the circular plate, and the rack, so that multiple rubber roller shafts roll-press the surface of the flexible steel plate. By the rolling pressure of the roller shafts on the pressed part, a dynamic pressure gradient is formed, so that the stress changes from concentrated release to gradual release; the rolling pressure effect can eliminate the microscopic unevenness at the cutting edge and reduce the risk of subsequent stress concentration.

[0017] The present invention realizes the full - process automation of steel processing through an integrated system of automated feeding, positioning, sawing, and discharging, significantly reducing manual intervention, remarkably improving production efficiency, meeting the requirements of large - scale production, and greatly enhancing production efficiency; it adopts servo - motor control to ensure the feeding and positioning accuracy of steel, avoiding the common error problems in traditional manual operations, thus improving sawing accuracy and product quality, and greatly enhancing processing accuracy; the automated system reduces the need for manual operations, lowers labor costs, and at the same time reduces material waste caused by manual operation errors, further saving production costs and significantly reducing labor costs; the system uses PLC and touch - screen control, supports remote monitoring and data analysis, can collect production data in real - time, facilitating production management and optimization. At the same time, the system has a fault self - diagnosis function, can detect and prompt faults in time, reduce downtime, and achieve intelligent control; compared with the complex feeding mechanisms and high - cost maintenance requirements in the prior art, the feeding and sawing mechanisms of this patent are simply designed and easy to maintain, reducing the long - term operation cost of the equipment and resulting in low maintenance costs; the system is equipped with a cooling device, effectively extending the tool life, reducing the tool replacement frequency, and at the same time reducing energy consumption by optimizing sawing parameters, meeting the requirements of green production and achieving environmental protection and energy conservation; all processing data are recorded and stored, facilitating subsequent query and analysis, providing data support for production management, and realizing data traceability; In summary, through the automated and intelligent design, this patent solves the problems of low efficiency, poor accuracy, and great potential safety hazards in traditional steel sawing, while reducing costs, improving the flexibility and manageability of production, and having significant economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the detailed structure of the cutting device of the present invention; Figure 3 is a schematic diagram of the detailed structure of the positioning module of the present invention; Figure 4 is a schematic cross - sectional structure diagram of the block of the present invention; Figure 5 is a schematic diagram of the structural cooperation relationship between the hydraulic oil tank and the piston block of the present invention; Figure 6 is a schematic diagram of the structural cooperation relationship between the moving part and the pressing module of the present invention; Figure 7 is a schematic diagram of the structural cooperation relationship between the circular plate and the rack of the present invention; Figure 8 is a schematic diagram of the detailed structure of the pressing module of the present invention; Figure 9 is Figure 8Schematic diagram of the partial enlarged structure at position A in [Chinese term]; Figure 10 Schematic diagram of the three-dimensional exploded structure of the pressing module of the present invention; Figure 11 Schematic diagram of the structural cooperation relationship between the pressing block and the rubber roller shaft of the present invention; Figure 12 Schematic diagram of the structural cooperation relationship between the present invention and the circular plate; Figure 13 Schematic diagram of the structural cooperation relationship between the pressing block and the belt drive assembly of the present invention; Figure 14 Schematic diagram of the three-dimensional sectional structure of the belt drive assembly and the drive motor of the present invention.

[0019] In the figure: 100, feeding mechanism; 200, cutting device; 210, backing plate; 220, power pressing assembly; 230, sawing mechanism; 240, pressing plate; 300, positioning module; 310, positioning member; 311, block body; 312, hydraulic oil tank; 313, first elastic member; 314, piston block; 315, second elastic member; 320, movable member; 330, limiting member; 331, pressing plate; 332, third elastic member; 340, cross plate; 400, pressing module; 410, pressing block; 420, circular plate; 430, rack; 440, first rotating shaft; 450, rubber roller shaft; 460, second rotating shaft; 470, spur gear; 500, belt drive assembly; 600, drive motor; 700, pusher mechanism; 800, discharging mechanism; 900, control mechanism. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] As Figures 1 to 14 shown, the present invention provides an automatic feeding circular saw cutting system for steel plates, which system includes a feeding mechanism 100, a cutting device 200, a discharging mechanism 800, a pusher mechanism 700 installed on the feeding mechanism 100 for pushing the steel plate to move, and a control mechanism 900 arranged on the side of the feeding mechanism 100; The control mechanism 900 is composed of a PLC - programmable logic controller and a touch screen to realize the automatic control of the system; and supports the switching between manual and automatic modes and is equipped with a remote monitoring function to realize the real - time collection and analysis of production data; The discharging mechanism 800 automatically transports the sawn steel to a designated position, facilitating the workers to sort it out. The feeding mechanism 100 is composed of a servo motor and rollers to achieve precise feeding of steel; and is equipped with a photoelectric sensor to detect the position of the steel in real time to ensure the feeding accuracy.

[0022] The cutting device 200 includes a backing plate 210, a sawing mechanism 230 and a pressing plate 240, and further includes: A positioning module 300, which is installed at the four corners of the top surface of the backing plate 210; A pressing module 400, which is arranged in the middle area between the two positioning modules 300; Among them, a power pressing component 220 for connecting the pressing plate 240 and the positioning module 300 and driving the pressing plate 240 to move downward is installed on the backing plate 210; The positioning module 300 includes a positioning member 310 and a cross plate 340 sleeved outside the positioning member 310 and fixedly connected to the power pressing component 220. One side of the positioning member 310 is hinged to the pressing module 400 through a movable member 320, and a limiting member 330 for tightly pressing both sides of the steel plate is installed outside the lower end of the positioning member 310; The pressing module 400 includes a pressing block 410 and a circular plate 420 movably clamped on the pressing block 410. The pressing block 410 is rotatably connected with a rubber roller shaft 450 through a second rotating shaft 460, and both ends of the second rotating shaft 460 are sleeved with spur gears 470. The outer wall of the spur gear 470 is meshed and connected with a rack 430 fixedly connected to the outer wall of the circular plate 420.

[0023] As Figures 3 to 5 shown, the positioning member 310 includes a block body 311. A hydraulic oil tank 312 is opened in the inner cavity of the block body 311. The upper end of the inner cavity of the hydraulic oil tank 312 is movably connected with a piston block 314. The piston block 314 is elastically connected to the block body 311 through a second elastic member 315. The top of the piston block 314 abuts against a cross plate 340 sleeved outside the block body 311; The limiting member 330 includes a pressing plate 331 movably clamped on the block body 311 and communicated with the hydraulic oil tank 312. The pressing plate 331 is elastically connected to the block body 311 through a third elastic member 332.

[0024] Adopting the above scheme: when the cross plate 340 is driven by the power pressing component 220 to move downward, it will gradually press the piston block 314, so that the piston block 314 compresses the hydraulic oil in the inner cavity of the hydraulic oil tank 312, making it fill the inner cavity of the pressing plate 331 under the action of pressure, and making the pressing plate 331 approach the side of the steel plate and tightly press and limit it; on the contrary, when the cross plate 340 moves upward, the compressed second elastic member 315 releases the elastic force to drive the piston block 314 to move upward. At this time, the second elastic member 315 relieves the pressure on the hydraulic oil inside the hydraulic oil tank 312, and at the same time, the third elastic member 332 will pull the pressing plate 331 to gradually move away from the steel plate.

[0025] As shown Figure 5 in the figure, one end of the horizontal plate 340 is hinged to the movable member 320, and the horizontal plate 340 is elastically connected to the block 311 through the first elastic member 313; The movable member 320 is composed of an arc plate hinged at one end to the horizontal plate 340 and a spring telescopic member slidably clamped in the inner cavity of the arc plate and fixedly connected to the block 311; One end of the arc plate away from the block 311 is hinged to the pressing module 400, and a belt drive assembly 500 is fixedly connected to one side of the arc plate.

[0026] Adopting the above scheme: when the horizontal plate 340 moves downward, it will press against the arc plate and the driven pressing module 400 to move away from the block 311. Also, due to the elastic pulling force of the movable member 320, it will pull the arc plate to press towards the block 311. Under the interaction of the downward pressing force of the movable member 320 and the pulling force of the movable member 320, the bottom surface of the pressing module 400 will press the steel plate.

[0027] As shown Figure 7 , Figure 8 , Figure 10 , Figures 12 to 14 in the figure, the pressing block 410 is hinged to the movable member 320, and a driving motor 600 is fixedly connected to one end of the pressing block 410 away from the belt drive assembly 500; A first rotating shaft 440 is fixedly connected to the middle of the circular plate 420, and one end of the first rotating shaft 440 located in the inner cavity of the pressing block 410 is movably connected to the inner wall of the pressing block 410.

[0028] Adopting the above scheme: when the steel plate needs to be cut, the pressing block 410 is pulled by the movable member 320 so that the pressing block 410 is in the state as shown Figure 11 in the figure. At this time, the bottom surface of the pressing block 410 will contact the top surface of the steel plate. When the pressing block 410 no longer presses the steel plate, at this time, through the operation of the driving motor 600, the pressing block 410 will rotate counterclockwise as shown Figure 11 in the figure, so that the outer wall of the rubber roller shaft 450 gradually contacts the steel plate. During the process of the rubber roller shaft 450 contacting the steel plate, the output end of the belt drive assembly 500 will drive the first rotating shaft 440 to drive the circular plate 420 to rotate. During the rotation of the circular plate 420, the intermittently distributed racks 430 on its surface will drive a plurality of spur gears 470 to rotate, and then the second rotating shaft 460 will drive the rubber roller shaft 450 to perform reciprocating rolling on the surface of the steel plate; By means of the rolling pressure of the rubber roller shaft 450, a dynamic pressure gradient is formed on the pressed part, so that the stress changes from concentrated release to progressive release. At the same time, the rolling effect of the rolling pressure can eliminate the microscopic unevenness at the cutting edge and reduce the risk of subsequent stress concentration.

[0029] As shownFigure 11 As shown, the pressing block 410 is in the shape of a "b" with an arc surface facing upward, and the bottom surface of the pressing block 410 is made of rubber.

[0030] Adopting the above solution: the area where the pressing block 410 contacts the steel plate is made of rubber. Since rubber can increase the contact area with the steel plate due to its elastic deformation performance, and the viscoelastic characteristics of the rubber surface can generate a relatively high friction coefficient, thereby enhancing the pressing force of the pressing block 410 on the steel plate.

[0031] As Figures 7 to 11 shown, a number of racks 430 are provided, which are intermittently fixed to the outer wall of the circular plate 420, and one end of the first rotating shaft 440 far from the pressing block 410 is fixedly connected to the belt transmission assembly 500.

[0032] As Figure 2 and Figure 3 shown, the power pressing assembly 220 is composed of a connecting frame, a hydraulic mechanism, a fixing plate and a positioning column; The bottom of the positioning column is fixedly connected to the pressing plate 240, and the lower end of the positioning column is fixedly connected to a fixing plate located above the pressing plate 240. Both ends of the connecting frame are respectively connected to the cross plate 340 and the fixing plate, and one side of the connecting frame is fixedly connected to the hydraulic mechanism.

[0033] Adopting the above solution: after the position of the steel is detected by the photoelectric sensor and the sawing mechanism 230 needs to be used for cutting, the hydraulic mechanism on the power pressing assembly 220 is started, so that its output end drives the connecting frame to move downward. One connected end will drive the fixing plate and the pressing plate 240 to press and fix the top surface of the steel plate through the positioning column. At the same time, the end of the connecting frame far from the pressing plate 240 will drive the movable part 320 and the pressing module 400 to move through the cross plate 340.

[0034] As Figure 1 and Figure 2 shown, the sawing mechanism 230 adopts a high-power circular saw, equipped with a cooling system to ensure the sawing efficiency and the tool life; equipped with a sawing force feedback system to adjust the sawing parameters in real time to ensure the cutting quality; A slide rail driving mechanism for sliding the sawing mechanism 230 is installed on the backing plate 210.

[0035] The working principle and usage process of the present invention: First, place the steel plate on the rollers of the feeding mechanism 100, and use the servo motor to drive the rollers and cooperate with the pushing mechanism 700 to realize the automatic feeding of the steel plate. Cooperate with the photoelectric sensor to detect the position of the steel in real time to ensure the feeding accuracy, and use the monitoring and data control functions on the control mechanism 900 to make real-time adjustments; Secondly, when the steel plate is pushed to the area to be cut, the hydraulic mechanism on the power pressing assembly 220 is activated at this time, so that it drives the pressing plate 240 and the cross plate 340 to move downward synchronously through the connecting frame, the fixing plate and the positioning column. The bottom of the pressing plate 240 will contact the top surface of the steel plate and press the steel plate. At the same time, the cross plate 340 will move downward on the outer wall of the block 311, and one end of the cross plate 340 will abut against the bottom end of the movable member 320, so that the movable member 320 drives the pressure application module 400 to gradually contact the surface of the steel plate. At this time, the operation of the driving motor 600 makes the pressure application block 410 present as shown in Figure 11 the state shown. Under the downward movement and elastic pulling of the movable member 320, while the pressure application block 410 is in close contact with the surface of the steel plate, it will press and pull both ends of the steel plate to both sides; Thirdly, during the downward movement of the cross plate 340, its bottom surface will press down the second elastic member 315, so that it presses the hydraulic oil in the hydraulic oil tank 312, making the hydraulic oil fill into the inside of the abutting plate 331, and the side wall of the abutting plate 331 will abut against and press the side of the steel plate; Finally, the sliding rail driving mechanism on the sawing mechanism 230 is used to drive the sawing mechanism 230 to cut the steel plate. After the cutting is completed, the hydraulic mechanism, the connecting frame, the positioning column, the fixing plate and the pressing plate 240 gradually move upward. The piston block 314 moves upward under the elastic force of the second elastic member 315, and the abutting plate 331 is released from abutting and pressing the side of the steel plate under the elastic force of the third elastic member 332. At the same time, the driving motor 600 drives the pressure application block 410 to Figure 11 take... as an example to rotate counterclockwise, so that the arc surface area of the pressure application block 410 gradually contacts the surface of the steel plate. When contacting, the first rotating shaft 440 is driven to rotate through the belt transmission assembly 500. The first rotating shaft 440 will drive the circular plate 420 and the rack 430 to rotate on the pressure application block 410. The rack 430 will engage with the spur gear 470 and drive the rubber roller shaft 450 to rotate through the second rotating shaft 460. Through the intermittent distribution of the rack 430 and the overall rotation of the pressure application block 410, the rubber roller shaft 450 will roll-press the surface of the steel plate; then the pushing mechanism 700 is used to push the steel plate to the surface of the discharging mechanism 800 for subsequent collection and processing.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding circular saw cutting system for steel plates, characterized in that: The system includes a feeding mechanism (100), a cutting device (200), a discharging mechanism (800), a pusher mechanism (700) installed on the feeding mechanism (100) for pushing the steel plate to move, and a control mechanism (900) arranged on the side of the feeding mechanism (100); The discharging mechanism (800) automatically transports the sawn steel to a designated position; The feeding mechanism (100) consists of a servo motor and rollers to achieve precise feeding of the steel; and is equipped with a photoelectric sensor to detect the position of the steel in real time.

2. The automatic feeding circular saw cutting system for steel plates according to claim 1, wherein the cutting device (200) comprises a backing plate (210), a sawing mechanism (230) and a pressing plate (240), and is characterized in that: It further includes: A positioning module (300), which is installed at the four corners of the top surface of the backing plate (210); A pressing module (400), which is arranged in the middle area between the two positioning modules (300); Among them, a power pressing assembly (220) for connecting the pressing plate (240) and the positioning module (300) and driving the pressing plate (240) to move downward is installed on the backing plate (210); The positioning module (300) includes a positioning member (310) and a cross plate (340) sleeved outside the positioning member (310) and fixedly connected to the power pressing assembly (220). One side of the positioning member (310) is hinged to the pressing module (400) through a movable member (320), and a limiting member (330) for tightly pressing both sides of the steel plate is installed outside the lower end of the positioning member (310); The pressing module (400) includes a pressing block (410) and a circular plate (420) movably clamped on the pressing block (410). The pressing block (410) is rotatably connected with a rubber roller shaft (450) through a second rotating shaft (460), and spur gears (470) are sleeved at both ends of the second rotating shaft (460). The outer wall of the spur gear (470) is meshed with a rack (430) fixedly connected to the outer wall of the circular plate (420).

3. The automatic feeding circular saw cutting system for steel plates according to claim 2, wherein: The positioning member (310) includes a block body (311). A hydraulic oil groove (312) is opened in the inner cavity of the block body (311). The upper end of the inner cavity of the hydraulic oil groove (312) is movably connected with a piston block (314). The piston block (314) is elastically connected to the block body (311) through a second elastic member (315). The top of the piston block (314) abuts against a cross plate (340) sleeved outside the block body (311); The limiting member (330) includes a pressing plate (331) movably clamped on the block body (311) and communicated with the hydraulic oil groove (312). The pressing plate (331) is elastically connected to the block body (311) through a third elastic member (332).

4. The automatic feeding circular saw cutting system for steel plates according to claim 2, wherein: One end of the cross plate (340) is hinged to the movable member (320), and the cross plate (340) is elastically connected to the block body (311) through a first elastic member (313).

5. The automatic feeding circular saw cutting system for steel plates according to claim 4, wherein: The movable member (320) consists of an arc plate with one end hinged to the cross plate (340) and a spring telescopic member slidably clamped in the inner cavity of the arc plate and fixedly connected to the block body (311); One end of the arc plate away from the block body (311) is hinged to the pressing module (400), and a belt transmission assembly (500) is fixedly connected to one side of the arc plate.

6. The automatic feeding circular saw cutting system for steel plates according to claim 2, wherein: The pressing block (410) is hinged to the movable part (320), and a driving motor (600) is fixedly connected to one end of the pressing block (410) away from the belt transmission assembly (500); A first rotating shaft (440) is fixedly connected to the middle of the circular plate (420), and one end of the first rotating shaft (440) located inside the pressing block (410) is movably connected to the inner wall of the pressing block (410).

7. The automatic feeding circular saw cutting system for steel plates according to claim 2, characterized in that: The pressing block (410) is in a "b" shape with an upward arc surface, and the bottom surface of the pressing block (410) is made of rubber.

8. The automatic feeding circular saw cutting system for steel plates according to claim 6, wherein: A number of racks (430) are provided and are intermittently fixedly connected to the outer wall of the circular plate (420), and one end of the first rotating shaft (440) away from the pressing block (410) is fixedly connected to the belt transmission assembly (500).

9. The automatic feeding circular saw cutting system for steel plates according to claim 2, wherein: The power pressing assembly (220) is composed of a connecting frame, a hydraulic mechanism, a fixing plate and positioning columns; The bottom of the positioning column is fixedly connected to the pressing plate (240), a fixing plate located above the pressing plate (240) is fixedly connected to the lower end of the positioning column, both ends of the connecting frame are respectively connected to the cross plate (340) and the fixing plate, and one side of the connecting frame is fixedly connected to the hydraulic mechanism.

10. The automatic feeding circular saw cutting system for steel plates according to claim 2, characterized in that: The sawing mechanism (230) uses a circular saw and is equipped with a cooling system and a sawing force feedback system; A slide rail driving mechanism for sliding the sawing mechanism (230) is installed on the backing plate (210).

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