A fine cutting machine for sheet metal

Abstract

The application belongs to the field of cutting machines, in particular to a fine cutting machine for metal plates, which comprises a frame, a feeding assembly, a power assembly, a cutting assembly and a pressing assembly are arranged on the frame, wherein the feeding assembly is used for intermittent conveying of metal plates, the power assembly is used for driving the cutting assembly to move, the cutting assembly is used for cutting the metal plates, and the pressing assembly is used for fixing the metal plates during cutting; the feeding assembly comprises a first motor; the first motor is fixed on one side of the frame; a pair of conveying rollers are rotatably connected to the inner wall of the frame; a feeding end is communicated with one side of the conveying rollers, and a discharging end is communicated with the other side of the conveying rollers; the conveying rollers can be injected with a heating medium through the feeding end, so that the conveying rollers preheat the metal plates conveyed thereby, which can reduce the hardness of the metal plates and improve the plasticity thereof, reduce burrs and cracks on the cutting surface, and realize fine cutting of the metal plates.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cutting machine, in particular to a metal plate fine cutting machine. BACKGROUND

[0002] In the metal plate processing, numerical control blade as the core cutting tool, its performance directly affects the cutting quality, efficiency and cost. Cutting is the basic process of plate processing, widely used in automobile manufacturing, aerospace, home appliance production and other fields.

[0003] In the prior art, the metal plate is generally sent to the cutting seat for cutting. In use and observation, it is found that this cutting lacks preheating of the metal plate. Since the surface hardness of the plate is high, there is high cutting resistance, which increases the roughness of the cutting surface and affects the cutting quality.

[0004] Therefore, the present application provides a metal plate fine cutting machine to solve the problems in the background art. SUMMARY

[0005] The technical scheme adopted by the present application to solve its technical problems is: the metal plate fine cutting machine comprises a rack, a feeding assembly, a power assembly, a cutting assembly and a pressing assembly are arranged on the rack, wherein the feeding assembly is used for intermittent conveying of the metal plate, the power assembly is used for driving the cutting assembly to move, the cutting assembly is used for cutting the metal plate, and the pressing assembly is used for fixing the metal plate during cutting; the feeding assembly comprises a first motor; the first motor is fixed on one side of the rack; a pair of conveying rollers are rotatably connected to the inner wall of the rack; a feeding end and a discharging end are communicated on one side of the conveying roller and the other side of the conveying roller; the feeding end and the discharging end are fixedly installed on both sides of the rack, and the feeding end and the discharging end are rotatably connected with the conveying roller; a first gear is fixedly connected to one side of the conveying roller close to the feeding end; the pair of first gears are in meshing relationship; a belt is sleeved between the output end of the first motor and one of the conveying rollers; the feeding end can inject a heating medium into the conveying roller, so that the conveying roller preheats the metal plate conveyed thereby, reduces the hardness of the metal plate and improves the plasticity of the metal plate, reduces burrs and cracks on the cutting surface, and realizes fine cutting of the metal plate.

[0006] Preferably, a pair of fixed plates are fixedly connected inside the conveying roller, and the fixed plates are symmetrically distributed; the surface of the fixed plate is provided with a plurality of holes; a gas bag is fixedly connected between the pair of fixed plates; the gas bag is centrally arranged; through the cooperation of the fixed plate and the gas bag, the gas bag expands after being heated to reduce the flow range of the heating medium, so that the medium and the conveying roller are forced to exchange heat, and the utilization rate of the heat energy of the medium is improved.

[0007] Preferably, one side of the conveying roller near the discharge end is fixedly connected with a cylinder body; the inside of the cylinder body is slidably connected with a piston plate; one side of the piston plate is fixedly connected with a connecting rod; the end of the connecting rod is rotatably connected with a plurality of connecting plates; the end of the connecting plate is rotatably connected with a first sliding block; the first sliding block and the fixed plate are slidably connected; one side of the first sliding block is fixedly connected with a first baffle; the air bag is located between a plurality of first baffles; the other side of the piston plate is filled with compressed air between the cylinder body; when not heated, the air bag is inside the first baffle; when the conveying roller is filled with heated medium, the compressed gas in the cylinder body will expand due to the increase in temperature, the piston plate can be pushed and slide along the cylinder body under the action of air pressure, the piston plate can drive a plurality of connecting plates to deflect through the connecting rod, the angle of the connecting plate will change and push the first sliding block to slide along the fixed plate, at this time a plurality of first sliding blocks will expand outward, the first sliding block can move with the first baffle to gradually reduce the restriction on the air bag and make the air bag expand, because the moving stroke of the first sliding block is limited, when the first sliding block moves to the end point, the containment system formed by the first baffle can limit the expansion size of the air bag, to avoid the situation that the conveying roller is blocked due to excessive expansion of the air bag.

[0008] Preferably, the inside of the adjacent first sliding block is provided with a second baffle; the second baffle is located between the air bag and the first baffle, and the inner wall of the second baffle is arc-shaped; the outer wall of the second baffle is fixedly connected with a plurality of connecting plates, and the surface of the connecting plate is symmetrically provided with a sliding groove; the surface of the first baffle is fixedly connected with a plurality of fixed pins, the fixed pins and the surface sliding groove of the connecting plate are slidably connected, and the middle of the fixed pin is provided with a supporting plate abutting against the connecting plate; when the first baffle expands outward with the first sliding block, the fixed pins on the surface of the first baffle can slide along the surface sliding groove of the connecting plate, and at the same time the fixed pins can exert a pushing force on the connecting plate through the supporting plate, so that the first baffle can expand outward, and the second baffle can also expand outward with the connecting plate, and the inner wall of the second baffle can fit the outer wall of the air bag by being arc-shaped, reducing the stress on the surface of the air bag caused by expansion and extrusion.

[0009] Preferably, the surface of the cylinder body is fixedly connected with a bursting disc, and the surface of the bursting disc is provided with a fragile belt; the fragile belt is in a cross-shaped structure; the bursting disc is in contact with the compressed air in the cylinder body; when the temperature of the heated medium in the conveying roller is inadvertently too high, that is, exceeds the preheating temperature range, the air pressure in the air bag and the cylinder body will be damaged due to overheating, by arranging the bursting disc, the bursting disc can actively break under the high pressure in the cylinder body, thereby discharging the gas in the cylinder body, and the noise generated when the bursting disc breaks can also serve as a warning, reminding the staff to turn off the device in time and perform maintenance, and by arranging the fragile belt, the fragile belt can divide the bursting disc into multiple areas, so that the bursting disc can maintain integrity when it breaks, and still adhere to the outer wall of the cylinder body.

[0010] Preferably, the inner wall of the cylinder and the piston plate are fixedly connected with springs; by arranging the springs, when the conveying roller stops feeding the heating medium, the air pressure in the cylinder will decrease with the temperature, at this time the springs can provide additional reset action for the piston plate, so that the piston plate can quickly reset.

[0011] Preferably, the outer wall of the air bag is fixedly connected with a plurality of silicone rubber pads; the silicone rubber pads are equidistantly arranged; by arranging the silicone rubber pads, the silicone rubber pads can provide additional protection for the surface of the air bag, reduce the friction between the air bag and the second baffle, and distribute the extrusion on the surface of the air bag to the surface of the air bag through the deformation of the silicone rubber pads.

[0012] Preferably, the power assembly comprises a second motor; the second motor is fixedly installed in the interior of the rack; a transmission shaft is rotatably connected to the interior of the rack; a belt is sleeved between the output end of the second motor and the transmission shaft; a circular plate is fixedly connected to both ends of the transmission shaft; a connecting rod is rotatably connected to the surface of the circular plate; a second sliding block is rotatably connected to the end of the connecting rod; the second sliding block is slidingly connected with the rack; the cutting assembly comprises a sliding seat; the sliding seat is in fixed connection with a pair of second sliding blocks; an upper knife seat is arranged at the bottom of the sliding seat, and a lower knife seat is fixedly installed in the interior of the rack; a blanking plate is arranged in the interior of the rack, and the blanking plate is inclinedly arranged; a pressing assembly is fixedly arranged on one side of the sliding seat; the metal plate can pass through the lower knife seat under the conveying action of the conveying roller, then the first motor is intermittently stopped, and the second motor is always in the starting state in the process, and the transmission shaft is driven to rotate through the belt transmission, the connecting rod is driven to reciprocatingly deflect through the rotation of the circular plate, and the second sliding block is reciprocatingly moved along the rack by the pushing of the connecting rod, so that the second sliding block can repeatedly approach and move away from the lower knife seat with the upper knife seat of the sliding seat, and the metal plate can be automatically cut by cooperating with the intermittent starting of the first motor. The cut metal plate can fall on the blanking plate, and finally can fall into the collecting device. The metal plate can be extruded and fixed by the pressing assembly when the sliding seat moves downward, and the pressing assembly is a prior art which will not be described here.

[0013] Preferably, the second slider bottom is fixedly connected with a rack; the rack is in sliding connection with the rack; one side of the rack is provided with a second gear and a third gear; the second gear is in meshing relationship with the rack, and the third gear is in meshing relationship with the second gear; the surface of the third gear is fixedly connected with a dial and a push pin; the blanking plate is in rotary connection with the frame, and the both ends of the blanking plate are fixedly connected with a grooved wheel; the surface of the grooved wheel is provided with a limiting groove and a radial groove, the limiting groove and the dial are correspondingly arranged, and the radial groove and the push pin are correspondingly arranged; when the second slider moves back and forth along with the connecting rod, the rack moves along with the second slider, the rack can be in meshing relationship with the second gear in the process of reciprocating movement, the second gear can be in meshing relationship with the third gear, so that the third gear can reciprocating rotate, and the third gear can be in abutment with the limiting groove on the grooved wheel through the dial when rotating, so as to limit the grooved wheel; at this time, the blanking plate is in horizontal state along with the grooved wheel, that is, the cutting section of the metal plate is above the blanking plate, and the blanking plate can provide additional cutting for the cutting section of the metal plate; along with the rotation of the third gear, the push pin can enter the radial groove on the grooved wheel, and the grooved wheel can deflect along with the blanking plate, so that the blanking plate is in inclined state, and the metal plate on the blanking plate can be discharged; at this time, the sliding seat is in the process of resetting and moving up, that is, the sliding seat is in the highest point, the lowest point and a distance before and after, and the blanking plate is in horizontal state.

[0014] Preferably, the surface of the blanking plate is rotatably connected with a plurality of balls; by arranging the balls, the balls can reduce the friction between the metal plate and the blanking plate when the blanking plate is in inclined state, and protect the surface of the metal plate.

[0015] The present application has the advantages of:

[0016] 1. The metal plate fine cutting machine can inject a heating medium into the conveying roller through the feeding end, so that the conveying roller preheats the metal plate conveyed thereby, reduces the hardness of the metal plate, improves the plasticity of the metal plate, reduces burrs and cracks on the cutting surface, and realizes fine cutting of the metal plate.

[0017] 2. The metal plate fine cutting machine can cooperate with the fixed plate and the air bag, so that the air bag can reduce the flow range of the heating medium after being heated and expanded, so as to forcibly exchange heat between the medium and the conveying roller and improve the utilization rate of heat energy of the medium. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 This is a schematic diagram of the main body of the present invention;

[0020] Figure 2 This is a schematic diagram of the frame structure in this invention;

[0021] Figure 3 This is a schematic diagram of the conveying roller in this invention;

[0022] Figure 4 This is a schematic diagram of the cylinder block in this invention;

[0023] Figure 5 This is a schematic diagram of the structure of the first baffle in this invention;

[0024] Figure 6 This is a schematic diagram of the structure of the fixing plate in this invention;

[0025] Figure 7 This is a schematic diagram of the airbag structure in this invention;

[0026] Figure 8 This is a schematic diagram of the sliding seat in the present invention;

[0027] Figure 9 This is a schematic diagram of the material feeding plate in this invention;

[0028] Figure 10 This is a schematic diagram of the grooved wheel in this invention.

[0029] In the diagram: 1. Frame; 12. First motor; 13. Conveyor roller; 14. Feed end; 15. Discharge end; 16. First gear; 2. Fixed plate; 22. Airbag; 3. Cylinder; 32. Piston plate; 33. Connecting rod; 34. Connecting plate; 35. First slider; 36. First baffle; 4. Second baffle; 42. Connecting plate; 43. Fixed pin; 44. Support plate; 5. Rupture disc; 52. Weak band; 6. Spring; 7. Silicone rubber pad; 8. Second motor; 82. Drive shaft; 83. Circular plate; 84. Connecting rod; 85. Second slider; 86. Sliding seat; 87. Feed plate; 9. Rack; 92. Second gear; 93. Third gear; 94. Grooved wheel; 95. Dial; 96. Dial pin; 10. Ball bearing. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Specific implementation examples are given below.

[0032] Referring to Figures 1 to 10 As shown in the drawings, the metal plate fine cutting machine comprises a rack 1, the rack 1 is provided with a feeding assembly, a power assembly, a cutting assembly and a pressing assembly, wherein the feeding assembly is used for intermittent conveying of the metal plate, the power assembly is used for driving the cutting assembly to move, the cutting assembly is used for cutting the metal plate, and the pressing assembly is used for fixing the metal plate during cutting; the feeding assembly comprises a first motor 12; the first motor 12 is fixed on one side of the rack 1; a pair of conveying rollers 13 are rotatably connected to the inner wall of the rack 1; one side of the conveying roller 13 is communicated with a feeding end 14, and the other side is communicated with a discharging end 15; the feeding end 14 and the discharging end 15 are fixedly installed on both sides of the rack 1, and the feeding end 14 and the discharging end 15 are rotatably connected with the conveying roller 13; a first gear 16 is fixedly connected to one side of the conveying roller 13 close to the feeding end 14; the pair of first gears 16 are in meshing relationship; a belt is sleeved between the output end of the first motor 12 and one of the conveying rollers 13;

[0033] When working, the metal plate can be conveyed to the surface of the rack 1, which can be manually conveyed or conveyed by a mechanical hand, until the metal plate is located between the pair of conveying rollers 13, then the first motor 12 can be started to drive the lower conveying roller 13 to rotate through the belt transmission, at this time the other conveying roller 13 can rotate together under the meshing action of the pair of first gears 16, and the pair of conveying rollers 13 can convey the metal plate under the friction action, so that the metal plate can be moved to the cutting assembly, the rotation of the first motor 12 is intermittent, when the first motor 12 stops working, the cutting assembly can be driven by the power assembly and cut the metal plate, and the pressing assembly can extrude and fix the metal plate during the process, and the above process can be repeated to cut the metal plate, during the conveying of the conveying roller 13 to the plate, the heating medium can be pumped into the conveying roller 13 through the feeding end 14, the heating medium can exchange heat with the conveying roller 13, and then heat the upper and lower surfaces of the metal plate through the conveying roller 13, so as to reduce the hardness of the metal plate, and then reduce the resistance during subsequent cutting, improve the appearance and quality of the cutting surface, and the medium after heat exchange can be circulated to the related heating mechanism through the discharging end 15, and then sent into the conveying roller 13 through the feeding end 14 after being heated again, the above-mentioned heating medium is preferably gas, and the temperature can be 100-150℃; the heating medium can be injected into the conveying roller 13 through the feeding end 14, so that the conveying roller 13 can preheat the metal plate conveyed thereby, which can reduce the hardness of the metal plate and improve its plasticity, reduce burrs and cracks on the cutting surface, and realize fine cutting of the metal plate.

[0034] Referring to Figures 3 to 7As shown, the conveying roller 13 is internally fixed with a pair of fixed plates 2, and the fixed plates 2 are symmetrically distributed; the surface of the fixed plate 2 is provided with a plurality of holes; a pair of the fixed plates 2 are fixed with an air bag 22; the air bag 22 is centrally arranged;

[0035] When the conveying roller 13 is filled with the heating medium, the air bag 22 will expand with the temperature rising, and when the air bag 22 expands, it will fill the axial area of the conveying roller 13, so that when the heating medium passes through the air bag 22 again, it can only pass out from the gap between the air bag 22 and the edge of the conveying roller 13, which can forcibly increase the heat exchange area of the conveying roller 13 and the medium, and improve the utilization rate of the heat energy of the medium; through the cooperation of the fixed plate 2 and the air bag 22, the air bag 22 can reduce the flow range of the heating medium after being heated and expanded, so that the medium and the conveying roller 13 are forced to exchange heat, and the utilization rate of the heat energy of the medium is improved.

[0036] Please refer to Figures 3 to 7 As shown, the conveying roller 13 is internally fixed with a cylinder body 3 near one side of the discharge end 15; the cylinder body 3 is internally and slidably connected with a piston plate 32; one side of the piston plate 32 is fixedly connected with a connecting rod 33; the end of the connecting rod 33 is rotatably connected with a plurality of connecting plates 34; the end of the connecting plate 34 is rotatably connected with a first sliding block 35; the first sliding block 35 and the fixed plate 2 are slidably connected; one side of the first sliding block 35 is fixedly connected with a first baffle 36; the air bag 22 is located between a plurality of first baffles 36; the other side of the piston plate 32 and the cylinder body 3 are filled with compressed air;

[0037] When not heated, the air bag 22 is inside the first baffle 36, and when the conveying roller 13 is filled with the heating medium, the compressed gas in the cylinder body 3 will expand due to the temperature rising, and the piston plate 32 can be pushed and slide along the cylinder body 3 under the action of the air pressure, the piston plate 32 can drive a plurality of connecting plates 34 to deflect through the connecting rod 33, the angle of the connecting plate 34 will change and push the first sliding block 35 to slide along the fixed plate 2, at this time, a plurality of first sliding blocks 35 will expand outward, and the first sliding block 35 can move together with the first baffle 36 to gradually reduce the restriction on the air bag 22 and make the air bag 22 expand, and since the moving stroke of the first sliding block 35 is limited, when the first sliding block 35 moves to the end point, the containment system formed by the first baffle 36 can limit the expansion size of the air bag 22, so as to avoid the situation that the conveying roller 13 is blocked due to excessive expansion of the air bag 22.

[0038] Please refer to Figure 5 and Figure 6As shown, the first slider 35 is internally provided with a second baffle 4; the second baffle 4 is located between the air bag 22 and the first baffle 36, and the inner wall of the second baffle 4 is arc-shaped; the outer wall of the second baffle 4 is fixedly connected with a plurality of connecting plates 42, and the surface of the connecting plate 42 is symmetrically provided with a sliding groove; the surface of the first baffle 36 is fixedly connected with a plurality of fixed pins 43, the fixed pins 43 and the surface sliding groove of the connecting plate 42 are in sliding connection, and the middle of the fixed pin 43 is provided with a supporting plate 44 abutting against the connecting plate 42.

[0039] When the first baffle 36 expands outwardly with the first slider 35, the fixed pin 43 on the surface of the first baffle 36 can slide along the surface sliding groove of the connecting plate 42, and at the same time, the fixed pin 43 can apply a pushing force to the connecting plate 42 through the supporting plate 44, so that the second baffle 4 can also expand outwardly with the connecting plate 42 when the first baffle 36 expands outwardly, and the arc-shaped transition of the inner wall of the second baffle 4 can fit the outer wall of the air bag 22, thereby reducing the stress on the surface of the air bag 22 caused by expansion and extrusion.

[0040] Please refer to Figure 4 As shown, the surface of the cylinder body 3 is fixedly provided with a bursting disc 5, and the surface of the bursting disc 5 is provided with a fragile belt 52; the fragile belt 52 has a cross-shaped structure; the bursting disc 5 is in contact with the compressed air in the cylinder body 3;

[0041] When the temperature of the heating medium in the conveying roller 13 is inadvertently too high, i.e. exceeds the preheating temperature range, the air pressure in the air bag 22 and the cylinder body 3 will be damaged due to overheating. By providing the bursting disc 5, the bursting disc 5 can actively break under the high pressure in the cylinder body 3, thereby discharging the gas in the cylinder body 3. The noise generated when the bursting disc 5 breaks can also serve as a warning, reminding the staff to turn off the device in time and perform maintenance. At the same time, by providing the fragile belt 52, the fragile belt 52 can divide the bursting disc 5 into multiple areas, so that the bursting disc 5 can maintain its integrity when it breaks, and still adhere to the outer wall of the cylinder body 3.

[0042] Please refer to Figure 4 As shown, the inner wall of the cylinder body 3 and the piston plate 32 are fixedly connected with a spring 6;

[0043] By providing the spring 6, when the conveying roller 13 stops feeding the heating medium, the air pressure in the cylinder body 3 will decrease as the temperature decreases. At this time, the spring 6 can provide an additional reset function for the piston plate 32, so that the piston plate 32 can quickly reset.

[0044] Please refer to Figure 7 As shown, the outer wall of the air bag 22 is fixedly connected with a plurality of silicone rubber pads 7; the silicone rubber pads 7 are equidistantly arranged;

[0045] By setting the silicone rubber pad 7, the silicone rubber pad 7 can provide additional protection for the surface of the air bag 22, reduce the friction between the air bag 22 and the second baffle 4, and evenly distribute the extrusion on the surface of the air bag 22 through the deformation of the silicone rubber pad 7 itself.

[0046] Please refer to Figure 8 and Figure 9 As shown in the figure, the power assembly includes a second motor 8; the second motor 8 is fixedly installed in the interior of the rack 1; the interior of the rack 1 is rotatably connected with a transmission shaft 82; a belt is sleeved between the output end of the second motor 8 and the transmission shaft 82; the two ends of the transmission shaft 82 are fixedly connected with a circular plate 83; the surface of the circular plate 83 is rotatably connected with a connecting rod 84; the end of the connecting rod 84 is rotatably connected with a second sliding block 85; the second sliding block 85 is slidingly connected with the rack 1; the cutting assembly includes a sliding seat 86; the sliding seat 86 is fixedly connected with a pair of second sliding blocks 85; the bottom of the sliding seat 86 is provided with an upper knife seat, and the interior of the rack 1 is fixedly installed with a lower knife seat; the interior of the rack 1 is provided with a blanking plate 87, and the blanking plate 87 is inclinedly arranged; the pressing assembly is fixedly arranged on one side of the sliding seat 86;

[0047] The metal plate can pass through the lower knife seat under the conveying action of the conveying roller 13, and then the first motor 12 is intermittently stopped, and the second motor 8 is always in the starting state during the process, and drives the transmission shaft 82 to rotate through the belt transmission, the transmission shaft 82 can drive the connecting rod 84 to reciprocatingly deflect through the rotation of the circular plate 83, and the second sliding block 85 will reciprocatingly move along the rack 1 with the pushing of the connecting rod 84, and then the second sliding block 85 can drive the upper knife seat of the sliding seat 86 to repeatedly approach and move away from the lower knife seat, and cooperate with the intermittent starting of the first motor 12 to automatically cut the metal plate, and the cut metal plate can fall on the blanking plate 87, and finally fall into the collecting device from the blanking plate 87, and the sliding seat 86 can be extruded and fixed by the pressing assembly when it moves downward, and the pressing assembly is a prior art, which will not be described here.

[0048] Please refer to Figure 9 and Figure 10 As shown in the figure, the bottom of the second sliding block 85 is fixedly connected with a rack 9; the rack 9 is slidingly connected with the rack 1; one side of the rack 9 is provided with a second gear 92 and a third gear 93; the second gear 92 is in meshing relationship with the rack 9, and the third gear 93 is in meshing relationship with the second gear 92; the surface of the third gear 93 is fixedly connected with a dial 95 and a push pin 96; the blanking plate 87 is rotatably connected with the rack 1, and the two ends of the blanking plate 87 are fixedly connected with a grooved wheel 94; the surface of the grooved wheel 94 is provided with a limiting groove and a radial groove, the limiting groove and the dial 95 are correspondingly arranged, and the radial groove and the push pin 96 are correspondingly arranged;

[0049] When the second slider 85 reciprocates with the connecting rod 84, the rack 9 will move with the second slider 85, the rack 9 can be engaged with the second gear 92 during reciprocation, the second gear 92 can be engaged with the third gear 93, so that the third gear 93 can reciprocate, the third gear 93 can be limited by the dial plate 95 and the limiting groove on the ratchet wheel 94 when rotating, so as to limit the ratchet wheel 94, at this time the blanking plate 87 is in a horizontal state with the ratchet wheel 94, that is, the cut section of the metal plate is above the blanking plate 87, the blanking plate 87 can provide additional cutting for the cut section of the metal plate, with the rotation of the third gear 93, the push pin 96 can enter the radial groove on the ratchet wheel 94, and the ratchet wheel 94 with the blanking plate 87 is deflected, so that the blanking plate 87 is in an inclined state, and the metal plate on the blanking plate 87 can be discharged, at this time the sliding seat 86 is in the process of resetting and moving up, that is, the sliding seat 86 is in the highest point, the lowest point and a distance before and after, and the blanking plate 87 is in a horizontal state.

[0050] Please refer to Figure 9 As shown in the figure, the surface of the blanking plate 87 is rotatably connected with a plurality of balls 10;

[0051] By arranging the balls 10, the balls 10 can reduce the friction between the metal plate and the blanking plate 87 when the blanking plate 87 is inclined to discharge, and protect the surface of the metal plate.

[0052] Working principle: the metal plate is sent to the surface of the rack 1, which can be manually or mechanically conveyed, until the metal plate is located between a pair of conveying rollers 13, then the first motor 12 can be started to drive the lower conveying roller 13 to rotate through the belt drive, at this time the other conveying roller 13 can rotate together under the meshing action of a pair of first gears 16, a pair of conveying rollers 13 can convey the metal plate under friction to move to the cutting assembly, the rotation of the first motor 12 is intermittent, when the first motor 12 stops working, the cutting assembly can be driven by the power assembly and cut the metal plate, the pressing assembly can extrude and fix the metal plate during the process, repeat the above process, can realize the cutting of metal plate, in the process of conveying roller 13 conveying plate, heating medium can be pumped into conveying roller 13 through feeding end 14, heating medium can exchange heat with conveying roller 13, and then heat the upper and lower surfaces of the metal plate through the conveying roller 13, reduce the hardness of the metal plate, and then reduce the resistance during subsequent cutting, improve the appearance and quality of the cutting surface, the medium after heat exchange can be circulated to the relevant heating mechanism through the discharge end 15, after reheating, it is sent into the conveying roller 13 inside by the feeding end 14, the above-mentioned heating medium is preferably gas, and the temperature can be 100-150 DEG C; when the conveying roller 13 is filled with heating medium, the air bag 22 will expand as the temperature rises, when the air bag 22 expands, it will fill the shaft area of the conveying roller 13, so that the heating medium can only pass out from the gap between the air bag 22 and the edge of the conveying roller 13 when passing through the air bag 22 again, which can forcibly increase the heat exchange area of the conveying roller 13 and the medium, and improve the utilization rate of heat energy in the medium; when not heated, the air bag 22 is inside the first baffle 36, when the conveying roller 13 is filled with heating medium, the compressed gas in the cylinder 3 will expand due to the increase of temperature, the piston plate 32 can be pushed and slide along the cylinder 3 under the action of gas pressure, the piston plate 32 can drive multiple connecting plates 34 to deflect through the connecting rod 33, the angle of the connecting plate 34 changes and pushes the first sliding block 35 to slide along the fixed plate 2, at this time, multiple first sliding blocks 35 will expand outward, the first sliding block 35 can move with the first baffle 36 to gradually reduce the restriction on the air bag 22 and make the air bag 22 expand, because the moving stroke of the first sliding block 35 is limited, when the first sliding block 35 moves to the end point, the containment system formed by the first baffle 36 can limit the expansion size of the air bag 22 to avoid the blockage of the conveying roller 13 due to excessive expansion of the air bag 22; when the first baffle 36 expands outward with the first sliding block 35, the fixed pin 43 on the surface of the first baffle 36 can slide along the surface sliding groove of the connecting plate 42, at the same time, the fixed pin 43 can apply a pushing force to the connecting plate 42 through the supporting plate 44, so that the second baffle 4 can also expand outward with the connecting plate 42 when the first baffle 36 expands outward, the inner wall of the second baffle 4 is arc-shaped, which can fit the outer wall of the air bag 22 and reduce the stress on the surface of the air bag 22 due to extrusion expansion;When the temperature of the heating medium in the conveying roller 13 is inadvertently too high, i.e. exceeds the preheating temperature range, the air pressure in the air bag 22 and the cylinder body 3 will be damaged due to overheating. By arranging the bursting disc 5, the bursting disc 5 can actively rupture under the high pressure in the cylinder body 3, and the gas in the cylinder body 3 can be discharged. The noise generated when the bursting disc 5 ruptures can also serve as a warning to remind the staff to turn off the device in time and perform maintenance. At the same time, by arranging the fragile belt 52, the fragile belt 52 can divide the bursting disc 5 into multiple areas, so that the bursting disc 5 can maintain its integrity when it ruptures and still adhere to the outer wall of the cylinder body 3. By arranging the spring 6, when the conveying roller 13 stops supplying the heating medium, the air pressure in the cylinder body 3 will decrease as the temperature decreases. At this time, the spring 6 can provide an additional reset function for the piston plate 32, so that the piston plate 32 can quickly reset. By arranging the silicone rubber pad 7, the silicone rubber pad 7 can provide additional protection for the surface of the air bag 22, reduce the friction between the air bag 22 and the second baffle 4, and evenly distribute the pressure on the surface of the air bag 22 through the deformation of the silicone rubber pad 7 itself. The metal plate under the conveying action of the conveying roller 13 can pass through the lower knife seat, and then the first motor 12 stops intermittently. During this process, the second motor 8 is always in the starting state and drives the transmission shaft 82 to rotate through the belt drive. The transmission shaft 82 can drive the connecting rod 84 to reciprocate by rotating the circular plate 83, and the second sliding block 85 will reciprocate along the rack 1 by the pushing of the connecting rod 84, and then the second sliding block 85 can drive the sliding seat 86 to repeatedly approach and move away between the upper knife seat and the lower knife seat. Combined with the intermittent start of the first motor 12, the metal plate can be automatically cut. The cut metal plate can fall onto the discharge plate 87, and finally fall into the collecting device. When the sliding seat 86 moves down, the metal plate can be pressed and fixed by the pressing assembly. The pressing assembly is a prior art and will not be described here. When the second sliding block 85 reciprocates with the connecting rod 84, the rack 9 moves with the second sliding block 85. The rack 9 can engage with the second gear 92 during reciprocating movement. The second gear 92 can engage with the third gear 93, so that the third gear 93 can reciprocate. When the third gear 93 rotates, the dial 95 can be in contact with the limiting groove on the groove wheel 94 to limit the groove wheel 94. At this time, the discharge plate 87 is in a horizontal state with the groove wheel 94, i.e. the cutting section of the metal plate is above the discharge plate 87, and the discharge plate 87 can provide additional manufacturing for the cutting section of the metal plate. With the rotation of the third gear 93, the push pin 96 can enter the radial slot on the groove wheel 94, and the groove wheel 94 with the discharge plate 87 is deflected, so that the discharge plate 87 is in an inclined state. The metal plate on the discharge plate 87 can be discharged. At this time, the sliding seat 86 is in the process of resetting and moving up, i.e. the sliding seat 86 is in the highest point, the lowest point and a distance before and after, and the discharge plate 87 is in a horizontal state.By setting the ball 10, the ball 10 can be inclined to reduce the friction between the metal plate and the blanking plate 87, and the surface of the metal plate is protected.

[0053] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A precision metal sheet cutting machine, comprising a frame (1), wherein the frame (1) is provided with a feeding assembly, a power assembly, a cutting assembly, and a pressing assembly, wherein the feeding assembly is used to intermittently convey the metal sheet, the power assembly is used to drive the cutting assembly to move, the cutting assembly is used to cut the metal sheet, and the pressing assembly is used to fix the metal sheet during cutting; characterized in that: The feeding assembly includes a first motor (12); the first motor (12) is fixed to one side of the frame (1); a pair of conveying rollers (13) are rotatably connected to the inner wall of the frame (1); one side of the conveying roller (13) is connected to a feeding end (14), and the other side is connected to a discharging end (15); the feeding end (14) and the discharging end (15) are fixedly installed on both sides of the frame (1), and the feeding end (14) and the discharging end (15) are rotatably connected to the conveying roller (13); a first gear (16) is fixedly connected to the side of the conveying roller (13) near the feeding end (14); the pair of first gears (16) are meshed; a belt is sleeved between the output end of the first motor (12) and one of the conveying rollers (13); The conveying roller (13) has a pair of fixed plates (2) fixed inside, and the fixed plates (2) are symmetrically distributed; the surface of the fixed plates (2) is perforated; an air bag (22) is fixed between the pair of fixed plates (2); the air bag (22) is centrally located; A cylinder (3) is fixedly connected to the inside of the conveying roller (13) near the discharge end (15); a piston plate (32) is slidably connected inside the cylinder (3); a connecting rod (33) is fixedly connected to one side of the piston plate (32); multiple connecting plates (34) are rotatably connected to the end of the connecting rod (33); a first slider (35) is rotatably connected to the end of the connecting plate (34); the first slider (35) and the fixed plate (2) are slidably connected; a first baffle (36) is fixedly connected to one side of the first slider (35); the airbag (22) is located between the multiple first baffles (36); compressed air is filled between the other side of the piston plate (32) and the cylinder (3); The adjacent first slider (35) is provided with a second baffle (4); the second baffle (4) is located between the airbag (22) and the first baffle (36), and the inner wall of the second baffle (4) is arc-shaped; the outer wall of the second baffle (4) is fixedly connected with a plurality of connecting plates (42), and the surface of the connecting plates (42) is symmetrically provided with sliding grooves; the surface of the first baffle (36) is symmetrically fixed with a plurality of fixing pins (43), the fixing pins (43) and the sliding grooves on the surface of the connecting plates (42) are slidably connected, and the middle of the fixing pins (43) is provided with a support plate (44) that abuts against the connecting plates (42); The power assembly includes a second motor (8); the second motor (8) is fixedly installed inside the frame (1); a drive shaft (82) is rotatably connected inside the frame (1); a belt is sleeved between the output end of the second motor (8) and the drive shaft (82); circular plates (83) are fixedly connected to both ends of the drive shaft (82); a connecting rod (84) is rotatably connected to the surface of the circular plate (83); a second slider (85) is rotatably connected to the end of the connecting rod (84); the second slider (85) is slidably connected to the frame (1); The cutting assembly includes a sliding seat (86); the sliding seat (86) is fixedly connected to a pair of second sliders (85); the bottom of the sliding seat (86) is provided with an upper knife seat, and a lower knife seat is fixedly installed inside the frame (1); the inside of the frame (1) is provided with a feeding plate (87), and the feeding plate (87) is inclined. The pressing assembly is fixedly mounted on one side of the sliding seat (86).

2. The metal sheet precision cutting machine according to claim 1, characterized in that: A rupture disc (5) is fixedly installed on the surface of the cylinder (3), and a vulnerable zone (52) is formed on the surface of the rupture disc (5); the vulnerable zone (52) has a cross-shaped structure; the rupture disc (5) is in contact with the compressed air inside the cylinder (3).

3. The metal sheet precision cutting machine according to claim 2, characterized in that: A spring (6) is fixed between the inner wall of the cylinder (3) and the piston plate (32).

4. The metal sheet precision cutting machine according to claim 3, characterized in that: Multiple silicone rubber pads (7) are fixed to the outer wall of the airbag (22); the silicone rubber pads (7) are arranged at equal intervals.

5. A precision metal sheet cutting machine according to claim 4, characterized in that: The bottom of the second slider (85) is fixedly connected to a rack (9); the rack (9) is slidably connected to the frame (1); a second gear (92) and a third gear (93) are provided on one side of the rack (9); the second gear (92) is meshed with the rack (9), and the third gear (93) is meshed with the second gear (92); a dial (95) and a pin (96) are fixedly connected to the surface of the third gear (93); the feed plate (87) is rotatably connected to the frame (1), and grooved wheels (94) are fixedly connected to both ends of the feed plate (87); the surface of the grooved wheel (94) is provided with a limiting groove and a radial groove, the limiting groove and the dial (95) are correspondingly set, and the radial groove and the pin (96) are correspondingly set.

6. A precision metal sheet cutting machine according to claim 5, characterized in that: The surface of the feed plate (87) is rotatably connected with multiple ball bearings (10).

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