Automatic feeding steel plate circular saw cutting system

Abstract

The application belongs to the technical field of automatic steel plate feeding, and discloses an automatic steel plate round saw cutting system, which comprises a feeding mechanism, a cutting device, a discharging mechanism, a pushing mechanism arranged on the feeding mechanism and used for pushing the 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 specified position; the feeding mechanism is composed of a servo motor and a roller, and realizes accurate feeding of the steel; through cooperation of the limiting piece, the positioning piece and the pressure block and other structures, the fixing and positioning effect of the flexible steel plate during cutting is improved, vibration of the flexible steel plate due to its flexible characteristics is prevented, and the cutting accuracy is reduced; specifically, the power pressing assembly drives the horizontal plate and the pressing plate to move downward, the horizontal limiting of the flexible steel plate is realized through downward pressing and elastic pulling of the movable piece, and the positioning effect of the flexible steel plate is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of automatic feeding of steel plates, and specifically relates to an automatic feeding steel plate circular saw cutting system. BACKGROUND

[0002] Steel plate circular saw cutting is a machining process for high-speed cutting of a steel plate by using a circular saw blade, and material separation is mainly realized by rotation of the saw blade and pressing force. However, the existing steel plate circular saw cutting system still has disadvantages in actual use. When the existing cutting system cuts a flexible steel plate, the flexible steel plate is more likely to be elastically or plastically deformed when stress is released due to low rigidity, and then the two ends of the flexible steel plate are prone to warping when the flexible steel plate is cut, the warping causes the steel plate to relatively displace from a cutting path, the cutting line deviates from a preset track, and then the subsequent cutting precision is affected, and the existing cutting system greatly relies on manual operation, and then the overall work efficiency is greatly reduced.

[0003] Therefore, there is an urgent need for an efficient, accurate and safe automatic feeding saw cutting steel system. SUMMARY

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

[0005] To achieve the above object, the application provides the following technical scheme: an automatic feeding steel plate circular saw cutting system, which comprises a feeding mechanism, a cutting device, a discharging mechanism, a pushing mechanism for pushing the steel plate to move and installed on the feeding mechanism, and a control mechanism arranged at the side of the feeding mechanism.

[0006] The discharging mechanism automatically transports the saw-cut steel to a specified position.

[0007] The feeding mechanism is composed of a servo motor and a roller to realize accurate feeding of the steel.

[0008] Preferably, the cutting device comprises a backing plate, a saw cutting mechanism and a pressing plate, and further comprises:

[0009] Positioning modules installed at four corners of the top surface of the backing plate.

[0010] A pressing module is arranged in the middle region between the two positioning modules.

[0011] The backing plate is provided with a power pressing assembly for connecting the pressing plate and the positioning modules and driving the pressing plate to move downward.

[0012] The positioning module comprises a positioning member and a transverse plate sleeved outside the positioning member and fixedly connected with the power pressing assembly, one side of the positioning member is hingedly connected with the pressing assembly through a movable member, and the outer side of the lower end of the positioning member is provided with a limiting member for abutting against both sides of the steel plate;

[0013] The pressing assembly comprises a pressing block and a circular plate movably clamped on the pressing block, the pressing block is rotationally connected with a rubber roller shaft through a second rotating shaft, the two ends of the second rotating shaft are both sleeved with a straight gear, and the outer wall of the straight gear is in meshing connection with a rack fixedly connected with the outer wall of the circular plate.

[0014] Preferably, the positioning member comprises a block, a hydraulic oil groove is formed in the inner cavity of the block, a piston block is movably connected to the upper end of the inner cavity of the hydraulic oil groove, the piston block is elastically connected with the block through a second elastic member, and the top of the piston block is abutted with a transverse plate sleeved outside the block;

[0015] The limiting member comprises an abutting plate movably clamped on the block and in communication with the hydraulic oil groove, and the abutting plate is elastically connected with the block through a third elastic member.

[0016] Preferably, one end of the transverse plate is hingedly connected with the movable member, and the transverse plate is elastically connected with the block through a first elastic member.

[0017] Preferably, the movable member is composed of an arc plate hingedly connected to one end of the transverse plate and a spring telescopic member slidingly clamped in the inner cavity of the arc plate and fixedly connected with the block;

[0018] One end of the arc plate away from the block is hingedly connected with the pressing assembly, and one side of the arc plate is fixedly connected with a belt transmission assembly.

[0019] Preferably, the pressing block is hingedly connected with the movable member, and one end of the pressing block away from the belt transmission assembly is fixedly connected with a driving motor.

[0020] A first rotating shaft is fixedly connected to the middle of the circular plate, and one end of the first rotating shaft in the inner cavity of the pressing block is movably connected with the inner wall of the pressing block.

[0021] Preferably, the pressing block is in the shape of an arc surface upward "b" letter, and the bottom surface of the pressing block is made of rubber.

[0022] Preferably, a plurality of racks are intermittently fixedly connected to the outer wall of the circular plate, and one end of the first rotating shaft away from the pressing block is fixedly connected with the belt transmission assembly.

[0023] Preferably, the power pressing assembly is composed of a connecting frame, a hydraulic mechanism, a fixed plate and a positioning column.

[0024] The bottom of the positioning column is fixedly connected with the pressing plate, the lower end of the positioning column is fixedly connected with a fixed plate located above the pressing plate, the two ends of the connecting frame are connected with the horizontal plate and the fixed plate respectively, and one side of the connecting frame is fixedly connected with the hydraulic mechanism.

[0025] Preferably, the sawing mechanism adopts a circular saw, is equipped with a cooling system and a sawing force feedback system.

[0026] The base plate is provided with a slide rail driving mechanism for sliding the sawing mechanism.

[0027] Compared with the prior art, the present application has the following advantages:

[0028] The present application improves the fixing and positioning effect of the flexible steel plate during cutting by setting the cooperation of the limiting piece, the positioning piece and the pressure block, etc., thereby preventing the vibration of the flexible steel plate due to its flexible characteristics and reducing the cutting accuracy. Specifically, the horizontal plate and the pressing plate are driven downward by the power pressing assembly, the plane of the pressure block is pressed on the surface of the steel plate at both ends by the downward pressure and elastic tension of the movable piece, and the hydraulic oil in the hydraulic oil tank is pushed by the second elastic piece to fill the abutting plate, so that the side wall of the abutting plate is pressed against the edge of the steel plate to limit it horizontally, thereby improving the positioning effect of the flexible steel plate.

[0029] The present application greatly reduces the warping of both ends of the flexible steel plate during cutting due to its low rigidity by setting the cooperation of the pressure block, the circular plate and the rubber roller shaft, etc. Specifically, after the cutting of the flexible steel plate is completed, the driving motor drives the pressure block to overturn, so that the curved surface of the pressure block contacts the surface of the steel plate, and the output end is driven to rotate by the first rotating shaft, the circular plate, the rack, the spur gear, the second rotating shaft and the rubber roller shaft through the belt transmission assembly, so that the multiple rubber roller shafts roll the surface of the flexible steel plate, and the dynamic pressure gradient is formed by the rolling pressure of the roller on the pressing part, so that the stress is gradually released instead of being concentratedly released. The rolling action can eliminate the micro concave-convex of the cutting edge and reduce the risk of subsequent stress concentration.

[0030] The application realizes the full-process automation of steel processing through the automatic feeding, positioning, sawing and discharging integrated system, greatly reduces manual intervention, significantly improves production efficiency, can meet the demand of large-scale production, greatly improves production efficiency; adopts servo motor control to ensure the feeding and positioning accuracy of the steel, avoids the error problem common in traditional manual operation, thereby improving the sawing accuracy and product quality, and greatly improving the processing accuracy; the automation system reduces the demand for manual operation, reduces labor cost, and reduces material waste caused by manual operation error, further saves production cost, and greatly reduces labor cost; the system adopts PLC and touch screen control, supports remote monitoring and data analysis, can collect production data in real time, and is convenient for production management and optimization. At the same time, the system has a fault self-diagnosis function, can discover and prompt faults in time, reduces downtime, and realizes intelligent control; compared with the complex feeding mechanism and high-cost maintenance requirement in the prior art, the feeding and sawing mechanism of the patent is simple in design and convenient to maintain, reduces the long-term operation cost of the equipment, and has low maintenance cost; the system is equipped with a cooling device, effectively prolongs the service life of the tool, reduces the tool replacement frequency, and reduces energy consumption by optimizing the sawing parameters, meets the requirements of green production, and realizes environmental protection and energy saving; all processing data are recorded and stored, which is convenient for subsequent inquiry and analysis, provides data support for production management, and realizes data traceability;

[0031] In summary, the patent solves the problems of low efficiency, poor precision and great safety hazards in traditional steel sawing through automatic and intelligent design, reduces cost, improves production flexibility and manageability, and has significant economic and social benefits. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the application;

[0033] Figure 2 It is a schematic diagram of the detailed structure of the cutting device of the application;

[0034] Figure 3 It is a schematic diagram of the detailed structure of the positioning module of the application;

[0035] Figure 4 It is a schematic diagram of the cross-sectional structure of the block of the application;

[0036] Figure 5 It is a schematic diagram of the structure cooperation relationship between the hydraulic oil tank and the piston block of the application;

[0037] Figure 6 It is a schematic diagram of the structure cooperation relationship between the movable part and the pressing module of the application;

[0038] Figure 7Structure matching diagram of the round plate and the rack of the present application;

[0039] Figure 8 Structure matching diagram of the pressure applying module of the present application;

[0040] Figure 9 Structure matching diagram of the pressure applying module of the present application; Figure 8 Structure matching diagram of the pressure applying module of the present application; Structure matching diagram of the pressure applying module of the present application;

[0041] Structure matching diagram of the pressure applying module of the present application; Figure 10 Structure matching diagram of the pressure applying module of the present application; Structure matching diagram of the pressure applying module of the present application;

[0042] Structure matching diagram of the pressure applying module of the present application; Figure 11 Structure matching diagram of the pressure applying module of the present application; Structure matching diagram of the pressure applying module of the present application;

[0043] Structure matching diagram of the pressure applying module of the present application; Figure 12 Structure matching diagram of the pressure applying module of the present application; Structure matching diagram of the pressure applying module of the present application;

[0044] Structure matching diagram of the pressure applying module of the present application; Figure 13 Structure matching diagram of the pressure applying module of the present application. Structure matching diagram of the pressure applying module of the present application.

[0045] Structure matching diagram of the pressure applying module of the present application. Figure 14 Structure matching diagram of the pressure applying module of the present application. Structure matching diagram of the pressure applying module of the present application.

[0046] DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0048] As Figures 1 to 14As shown, the present application provides an automatic feeding steel plate circular saw cutting system, which comprises a feeding mechanism 100, a cutting device 200, a discharging mechanism 800, a pushing mechanism 700 mounted on the feeding mechanism 100 for pushing the steel plate to move, and a control mechanism 900 arranged at the side of the feeding mechanism 100;

[0049] 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 manual and automatic mode switching and is equipped with a remote monitoring function to realize real-time acquisition and analysis of production data;

[0050] The discharging mechanism 800 automatically transports the sawed steel to a designated position, which is convenient for workers to arrange;

[0051] The feeding mechanism 100 is composed of a servo motor and a roller to realize accurate feeding of the steel; and is equipped with a photoelectric sensor to detect the position of the steel in real time, thereby ensuring the feeding accuracy.

[0052] The cutting device 200 comprises a base plate 210, a sawing mechanism 230, and a pressing plate 240, and further comprises:

[0053] A positioning module 300 mounted at the four corners of the top surface of the base plate 210;

[0054] A pressing module 400 arranged in the middle region between the two positioning modules 300;

[0055] The base plate 210 is provided with a power pressing assembly 220 for connecting the pressing plate 240 and the positioning module 300 and driving the downward movement of the pressing plate 240;

[0056] The positioning module 300 comprises a positioning piece 310 and a cross plate 340 sleeved outside the positioning piece 310 and fixedly connected with the power pressing assembly 220, one side of the positioning piece 310 is hingedly connected with the pressing module 400 through a movable piece 320, and the outer side of the lower end of the positioning piece 310 is provided with a limiting piece 330 for abutting against both sides of the steel plate;

[0057] The pressing module 400 comprises 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, the two ends of the second rotating shaft 460 are both sleeved with a straight gear 470, and the outer wall of the straight gear 470 is meshingly connected with a rack 430 fixedly connected with the outer wall of the circular plate 420.

[0058] As Figures 3 to 5As shown, the positioning member 310 comprises a block 311, the inner cavity of the block 311 is provided with a hydraulic oil groove 312, 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 with the block 311 through a second elastic member 315, the top of the piston block 314 abuts against a transverse plate 340 which is sleeved outside the block 311;

[0059] The limiting member 330 comprises an abutting plate 331 movably clamped on the block 311 and in communication with the hydraulic oil groove 312, and the abutting plate 331 is elastically connected with the block 311 through a third elastic member 332.

[0060] With the above scheme: when the transverse plate 340 is driven downward by the power pressing assembly 220, the piston block 314 is gradually pressed, so that the hydraulic oil in the inner cavity of the hydraulic oil groove 312 is compressed, and the hydraulic oil is filled into the inner cavity of the abutting plate 331 under the action of pressure, and the abutting plate 331 is close to the side of the steel plate, and the abutting plate 331 is abutted and limited; on the contrary, when the transverse plate 340 is up, the 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 releases the pressure of the hydraulic oil in the hydraulic oil groove 312, and the third elastic member 332 pulls the abutting plate 331 to gradually move away from the steel plate.

[0061] As shown in the figure, Figure 5 One end of the transverse plate 340 is hinged to the movable member 320, and the transverse plate 340 is elastically connected with the block 311 through a first elastic member 313;

[0062] The movable member 320 is composed of an arc plate hinged to one end of the transverse plate 340 and a spring telescopic member slidingly clamped in the inner cavity of the arc plate and fixedly connected with the block 311;

[0063] The end of the arc plate away from the block 311 is hinged to the pressing die set 400, and one side of the arc plate is fixedly connected with a belt transmission assembly 500.

[0064] With the above scheme: when the transverse plate 340 moves downward, it will press the arc plate and drive the pressing die set 400 to move away from the block 311, and because of the elastic pulling force of the movable member 320, the arc plate will be pressed 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 die set 400 will press the steel plate.

[0065] As shown in the figure, Figure 7 , Figure 8 , Figure 10 , Figures 12 to 14 The pressing block 410 is hinged to the movable member 320, and the end of the pressing block 410 away from the belt transmission assembly 500 is fixedly connected with a driving motor 600;

[0066] The middle part of the circular plate 420 is fixedly connected with a first rotating shaft 440, and the first rotating shaft 440 is movably connected with the inner wall of the inner cavity of the pressing block 410 at one end.

[0067] When the steel plate needs to be cut, the pressing block 410 is pulled by the movable part 320, so that the pressing block 410 is shown as Figure 11 When the pressing block 410 is not pressing the steel plate, the driving motor 600 is driven to rotate, so that the pressing block 410 is shown as Figure 11 The outer wall of the rubber roller shaft 450 gradually contacts the steel plate, and in the process of the rubber roller shaft 450 contacting the steel plate, the first rotating shaft 440 is driven by the output end of the belt transmission assembly 500 to drive the circular plate 420 to rotate, and in the process of the circular plate 420 rotating, the plurality of straight gears 470 are driven by the intermittently distributed racks 430 on the surface of the circular plate 420, so that the second rotating shaft 460 drives the rubber roller shaft 450 to reciprocatingly roll the surface of the steel plate.

[0068] The rolling pressing of the rubber roller shaft 450 forms a dynamic pressure gradient on the pressing part, so that the stress is gradually released from concentration, and the rolling rolling effect can eliminate the micro concave-convex of the cutting edge and reduce the risk of subsequent stress concentration.

[0069] As shown in Figure 11 The pressing block 410 is shown as an arc surface upward "b" shape, and the bottom surface of the pressing block 410 is made of rubber.

[0070] The above scheme is adopted: the contact area between the pressing block 410 and the steel plate is made of rubber, and the contact area between the pressing block 410 and the steel plate is increased due to the elastic deformation performance of the rubber, and the viscoelasticity of the rubber surface can produce a higher friction coefficient, so as to improve the pressing force of the pressing block 410 on the steel plate.

[0071] As shown in Figures 7 to 11 The racks 430 are intermittently fixed to the outer wall of the circular plate 420, and the end of the first rotating shaft 440 away from the pressing block 410 is fixed to the belt transmission assembly 500.

[0072] As shown in Figure 2 and Figure 3 The power pressing assembly 220 is composed of a connecting frame, a hydraulic mechanism, a fixed plate and a positioning column;

[0073] The bottom of the positioning column is fixedly connected with the pressing plate 240, the lower end of the positioning column is fixedly connected with the fixed plate above the pressing plate 240, the two ends of the connecting frame are connected with the horizontal plate 340 and the fixed plate respectively, and one side of the connecting frame is fixedly connected with the hydraulic mechanism.

[0074] Adopt the above scheme: through the photoelectric sensor, after detecting the position of the steel material, and needing to cut by using the sawing mechanism 230, start the hydraulic mechanism on the power pressing assembly 220, make the output end drive the connecting frame to descend, one end connected will drive the fixed plate and the pressing plate 240 to press and fix the top surface of the steel plate through the positioning column, and the end of the connecting frame away from the pressing plate 240 will drive the movable piece 320 and the pressing die set 400 to move through the horizontal plate 340.

[0075] As shown in Figure 1 and Figure 2 The sawing mechanism 230 adopts a high-power disc saw, is equipped with a cooling system, ensures the sawing efficiency and the tool life, is equipped with a sawing force feedback system, adjusts the sawing parameters in real time, and ensures the cutting quality.

[0076] The base plate 210 is provided with a slide rail driving mechanism for sliding the sawing mechanism 230.

[0077] The working principle and use flow of the application are as follows:

[0078] Firstly, the steel plate is placed on the roller of the feeding mechanism 100, and the roller is driven by the servo motor to realize automatic conveying of the steel plate in cooperation with the pushing mechanism 700, and the position of the steel material is detected in real time in cooperation with the photoelectric sensor, so that the feeding accuracy is ensured, and the monitoring and data control functions on the control mechanism 900 are used for real-time adjustment.

[0079] Secondly, when the steel plate is pushed to the cutting area, the hydraulic mechanism on the power pressing assembly 220 is started at this time to drive the pressing plate 240 and the horizontal plate 340 to descend synchronously through the connecting frame, the fixed 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, and the horizontal plate 340 will descend on the outer wall of the block 311, one end of the horizontal plate 340 will abut against the bottom end of the movable piece 320 to make the movable piece 320 drive the pressing die set 400 to gradually contact the surface of the steel plate, at this time, the driving motor 600 is driven to make the pressing block 410 present the state as shown in Figure 11 Under the descending of the movable piece 320 and the elastic pulling, the pressing block 410 is in close contact with the surface of the steel plate while pressing and pulling the two ends of the steel plate to two sides.

[0080] Thirdly, in the descending process of the horizontal plate 340, the bottom surface will press the second elastic piece 315, so that the hydraulic oil in the hydraulic oil groove 312 is pressed, the hydraulic oil fills into the inside of the abutting plate 331, and the side wall of the abutting plate 331 abuts against and presses the side of the steel plate.

[0081] Finally, the sawing mechanism 230 is driven by the slide rail driving mechanism on the sawing mechanism 230 to cut the steel plate, after cutting, the hydraulic mechanism, connecting frame, positioning column, fixed plate and pressing plate 240 gradually go up, the piston block 314 is driven by the elastic force of the second elastic member 315 to go up, the resisting plate 331 is driven by the elastic force of the third elastic member 332 to remove the resistance and pressure on the side of the steel plate, at the same time, the driving motor 600 drives the pressing block 410 to Figure 11 clockwise, so that the curved surface area of the pressing block 410 gradually contacts the surface of the steel plate, at the time of contact, the first rotating shaft 440 is driven by the belt transmission assembly 500 to rotate, the first rotating shaft 440 drives the circular plate 420 and the rack 430 to rotate on the pressing block 410, the rack 430 is engaged with the spur gear 470 and drives the rubber roller shaft 450 to rotate through the second rotating shaft 460, through the intermittent distribution of the rack 430 and the overall overturning of the pressing block 410, the rubber roller shaft 450 rolls the surface of the steel plate; then the steel plate is pushed by the pushing mechanism 700 to the surface of the discharging mechanism 800, and subsequent collection and processing are carried out.

[0082] It should be noted that in this paper, the relationship 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 the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0083] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An automatic feed steel plate circular saw cutting system characterized by: The system comprises a feeding mechanism (100), a cutting device (200), a discharging mechanism (800), a pushing mechanism (700) installed on the feeding mechanism (100) for pushing the steel plate to move, and a control mechanism (900) arranged at the side of the feeding mechanism (100); The discharging mechanism (800) automatically transports the sawed steel plate to a designated position; The feeding mechanism (100) is composed of a servo motor and a roller, realizes accurate feeding of the steel plate, and is equipped with an optical sensor for real-time detection of the position of the steel plate; The cutting device (200) comprises a base plate (210), a sawing mechanism (230) and a pressing plate (240), and further comprises: A positioning module (300) is installed at the four corners of the top surface of the base plate (210); A pressing module (400) is arranged in the middle region of the two positioning modules (300); The base plate (210) is provided with 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; The positioning module (300) comprises a positioning piece (310) and a horizontal plate (340) sleeved outside the positioning piece (310) and fixedly connected with the power pressing assembly (220), one side of the positioning piece (310) is hingedly connected with the pressing module (400) through a movable piece (320), and the outer side of the lower end of the positioning piece (310) is provided with a limiting piece (330) for abutting against both sides of the steel plate; The pressing module (400) comprises a pressing block (410) and a circular plate (420) movably connected to the pressing block (410), the pressing block (410) is rotatably connected with a rubber roller (450) through a second rotating shaft (460), the two ends of the second rotating shaft (460) are sleeved with a spur gear (470), and the outer wall of the spur gear (470) is meshedly connected with a rack (430) fixedly connected to the outer wall of the circular plate (420); The pressing block (410) is hingedly connected to the movable piece (320), and one end of the pressing block (410) away from the belt driving assembly (500) is fixedly connected with a driving motor (600); The middle part of the circular plate (420) is fixedly connected with a first rotating shaft (440), and the first rotating shaft (440) is movably connected with the inner wall of the pressing block (410) at one end in the inner cavity of the pressing block (410).

2. The automatic fed steel plate circular saw cutting system of claim 1, wherein: The positioning piece (310) comprises a block body (311), a hydraulic oil groove (312) is formed in the inner cavity of the block body (311), a piston block (314) is movably connected to the upper end of the inner cavity of the hydraulic oil groove (312), the piston block (314) is elastically connected with the block body (311) through a second elastic piece (315), and the top of the piston block (314) abuts against the horizontal plate (340) sleeved outside the block body (311); The limiting piece (330) comprises an abutting plate (331) movably connected to the block body (311) and communicating with the hydraulic oil groove (312), and the abutting plate (331) is elastically connected with the block body (311) through a third elastic piece (332).

3. The automatic fed steel plate circular saw cutting system of claim 1, wherein: One end of the horizontal plate (340) is hinged to the movable element (320), and the horizontal plate (340) is elastically connected to the block (311) through the first elastic element (313).

4. The automatic fed steel plate circular saw cutting system of claim 3, wherein: The movable element (320) is composed of an arc plate hinged to one end of the horizontal plate (340) and a spring telescopic element slidingly clamped in the inner cavity of the arc plate and fixed to the block (311). One end of the arc plate away from the block (311) is hinged to the pressure applying module (400), and one side of the arc plate is fixed with the belt transmission assembly (500).

5. The automatic fed steel plate circular saw cutting system of claim 1, wherein: The pressure applying block (410) is in the shape of "b" with the arc surface upward, and the bottom surface of the pressure applying block (410) is made of rubber.

6. The automatic fed steel plate circular saw cutting system of claim 1, wherein: The rack (430) is provided with a plurality of intermittent fixed outer walls of the circular plate (420), and one end of the first rotating shaft (440) away from the pressure applying block (410) is fixed with the belt transmission assembly (500).

7. The automatic fed steel plate circular saw cutting system of claim 1, wherein: The power pressing assembly (220) is composed of a connecting frame, a hydraulic mechanism, a fixed plate and a positioning column. The bottom of the positioning column is fixed to the pressing plate (240), the lower end of the positioning column is fixed with the fixed plate above the pressing plate (240), the two ends of the connecting frame are respectively connected to the horizontal plate (340) and the fixed plate, and one side of the connecting frame is fixed to the hydraulic mechanism.

8. The automatic fed steel plate circular saw cutting system of claim 1, wherein: The sawing mechanism (230) adopts a circular saw equipped with a cooling system and a sawing force feedback system. The slide rail driving mechanism allowing the sawing mechanism (230) to slide is mounted on the backing plate (210).

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